CN110126904B - Brake device and children's shallow - Google Patents

Abstract

The invention discloses a braking device and a children cart, which comprise a frame assembly connected to a frame main body, a fork assembly connected below the frame assembly, a brake disc arranged on a wheel, a braking piece detachably connected with the brake disc, and a first connecting assembly connected with the braking piece and capable of driving the braking piece to act, wherein the brake disc is arranged on the wheel; the frame assembly further comprises a second connecting assembly which is detachably connected with the first connecting assembly and can exert force on the first connecting assembly to enable the first connecting assembly to act; when the first connecting component is connected with the second connecting component and the second connecting component applies force to the first connecting component, the brake piece is connected with the brake disc, and the brake device is in a braking state; when the force exerted by the second connecting component on the second connecting component disappears, the brake piece is separated from the brake disc, and the brake device is in a brake release state. The braking device and the children cart solve the problem of universal wheel braking, can realize linkage braking, and are quite simple to operate.

Description

Brake device and children's shallow

Technical Field

The invention relates to a brake device and a child stroller.

Background

The safety when guaranteeing to use is all set up at brake equipment on the children's shallow generally, and for convenient operation, brake equipment mostly is linkage brake, operates once promptly, can make the wheel brake of both sides simultaneously, and the structure of linkage brake drives through the traction rope mostly. For the reversible trolley, the traction rope and the universal rotating shaft are wound, so that the trolley is blocked.

Disclosure of Invention

In order to solve the above problems, the present invention aims to provide a braking device and a stroller.

In order to achieve the above purpose, the invention adopts the following technical scheme: a brake device and a children cart comprise a frame component connected to a frame main body, a fork component connected below the frame component, wherein the fork component comprises a fork, wheels arranged on the fork, a rotating shaft fixedly connected above the fork, the frame component comprises a pipe joint pivotally connected with the rotating shaft,

The wheel fork assembly further comprises a brake disc arranged on the wheel, a brake piece detachably connected with the brake disc, and a first connecting assembly connected with the brake piece and capable of driving the brake piece to act;

the frame assembly further comprises a second connecting assembly which is detachably connected with the first connecting assembly and can exert force on the first connecting assembly to enable the first connecting assembly to act;

When the first connecting component is connected with the second connecting component and the second connecting component applies force to the first connecting component, the brake piece is connected with the brake disc, and the brake device is in a braking state; when the force exerted by the second connecting component on the second connecting component disappears, the brake piece is separated from the brake disc, and the brake device is in a brake release state.

Further, there is an orientation mechanism between the fork assembly and the frame assembly that enables the rotational relationship between the rotational shaft and the pipe joint to be restricted and released, the positions of the first and second connection assemblies correspond when the rotational relationship between the rotational shaft and the pipe joint is restricted, and the relative position between the first and second connection assemblies is changed by the rotation between the rotational shaft and the pipe joint when the rotational relationship between the rotational shaft and the pipe joint is released.

Further, the second coupling assembly is located on one side of the rotational axis between the rotational shaft and the pipe joint.

Further, the left side and the right side of the frame main body are respectively provided with a wheel fork assembly and a frame assembly, and the brake device further comprises a pedal for operating the wheel fork assembly and the frame assembly to enable the second connecting assemblies on the left side and the right side to act in a linkage mode.

Further, the first connecting component comprises a first sliding block which is connected to the wheel fork in a sliding way, and the brake piece is fixedly connected to the first sliding block; the first connecting assembly further comprises a first elastic member capable of applying force to the first slider to enable the first slider to slide.

Further, when the brake device is in a braking state, the second connecting component applies force to the first sliding block, and the direction of the second connecting component applied force to the first sliding block is opposite to that of the first elastic component.

In another embodiment, the first connecting component further comprises a second sliding block which is connected to the fork in a sliding way, the second sliding block is provided with an inclined surface which can be in sliding contact with the first sliding block and push the first sliding block to slide, and the direction of the inclined surface and the force applied by the first elastic piece to the first sliding block are opposite; when the brake device is in a braking state, the second connecting component applies force to the second sliding block, and the direction of the force applied by the second connecting component and the first sliding block to the second sliding block is opposite.

Further, the second connecting component comprises a third sliding block, a traction mechanism connected with the third sliding block, and a second elastic piece capable of applying force to the third sliding block or the traction mechanism to enable the third sliding block to slide, and the brake device further comprises a pedal connected with the traction mechanism and capable of operating the traction mechanism to enable the traction mechanism to drive the third sliding block to slide through the traction mechanism, and when the brake device is in a braking state, the third sliding block applies force to the first connecting component.

Further, the traction mechanism comprises a traction piece, a fourth sliding block and a connecting rod, wherein one end of the traction piece is connected with the pedal, the fourth sliding block is connected with the other end of the traction piece, the connecting rod is rotatably connected to the frame main body, one end of the connecting rod is rotatably connected with the fourth sliding block, and the other end of the connecting rod is rotatably connected with the third sliding block.

Further, the second elastic piece drives the third sliding block to slide by applying force to the traction mechanism.

In another embodiment, the second connecting component comprises a driving rod rotatably arranged on the frame body and provided with a bending part, a second elastic piece capable of enabling the driving rod to rotate so as to enable the bending part to move in a direction away from the first connecting component, and the brake device further comprises a pedal capable of enabling the driving rod to rotate so as to enable the bending part to move towards the first connecting component, and when the brake device is in a braking state, the bending part applies force to the first connecting component.

Further, a concave pit is arranged on the part of the first connecting component, which is directly forced by the bending part, and when the brake device is in a braking state, the force-applying part of the part is clamped into the concave pit by the bending part.

Further, the fork assembly is detachably connected with the frame assembly.

In another embodiment, the first connecting component comprises a lower sliding block which is connected to the wheel fork in a sliding way, a lower pulley which is connected to the wheel fork in a rotating way, and a lower traction piece, one end of which is connected with the lower sliding block, and the other end of which bypasses the lower pulley and is connected with the brake piece, and when the brake device is in a braking state, the second connecting component applies force to the lower sliding block; the first connecting assembly further comprises a first elastic piece capable of applying force to the lower slider, and the directions of the force applied by the first elastic piece and the lower traction piece to the lower slider are opposite.

Further, the wheel fork is rotatably connected with a pedal, the brake piece is fixedly connected to the pedal, and the other end of the lower traction piece is fixed to the pedal.

In another embodiment, the second connector assembly comprises an upper slider slidingly connected in the pipe joint, an upper pulley rotatably connected in the pipe joint, and an upper traction member with one end connected with the upper slider and the other end bypassing the upper pulley, and when the brake device is in a braking state, the upper slider applies a force to the first connector assembly; the second connecting assembly further comprises a second elastic piece which can apply force to the upper sliding block, and the direction of the force applied to the upper sliding block by the second elastic piece and the upper traction piece is opposite.

Further, the other end of the upper traction member is connected to the operating member by bypassing the upper pulley.

Furthermore, two positioning grooves are arranged on the wheel fork at intervals, positioning convex blocks which can be respectively and detachably connected with the two positioning grooves are arranged on the pedal, when the brake device is in a brake release state, the positioning convex blocks are positioned in one positioning groove, and when the brake device is in a brake state, the positioning convex blocks are positioned in the other positioning groove.

Further, pedals are arranged on the left side and the right side of the frame body, the pedals are connected with the brake pieces, the second connecting assemblies on the left side and the right side of the frame body are connected through traction components, the pedals on one side are brake operation pieces, the pedals on the other side are brake release operation pieces, when the brake device transits from a brake release state to a brake state, the pedals on one side move to enable the brake pieces on the other side to be connected with the brake disc, the first connecting assemblies on the one side apply force to the second connecting assemblies, the second connecting assemblies on the one side drive the second connecting assemblies on the other side to apply force to the first connecting assemblies on the other side through the traction components, and the first connecting assemblies on the other side enable the brake pieces on the other side to be connected with the brake disc.

The invention also provides another technical scheme: a children's barrow comprises a reversing device with two working states, wherein at least one of two opposite sides of the children's barrow in the front-rear direction is provided with a brake device,

When the reversing device is in the first working state, the mutual rotation relation between the rotating shaft on one side and the pipe joint is limited, and the positions of the first connecting component and the second connecting component on one side correspond to each other; when the reversing device is in the second operating state, the mutual rotational relationship between the one-sided rotation shaft and the pipe joint is released, and the relative position between the one-sided first connection assembly and the second connection assembly is changed by the rotation between the rotation shaft and the pipe joint.

By adopting the technical scheme, the brake device and the child stroller solve the problem of universal wheel braking, the first connecting component and the second connecting component are respectively arranged on the wheel fork component and the frame component which can rotate relatively, and under the condition that the universal wheel is oriented, the braking and the braking can be realized through the matching action of the first connecting component and the second connecting component, and the linkage braking can be realized, so that the operation is very simple; after the universal wheel is released from the orientation, the first connecting component can rotate along with the wheel fork component around the rotating shaft, the first connecting component and the second connecting component can not interfere, and the brake device can automatically fail; through adopting this brake equipment's structure for can realize dismantling between fork subassembly and the frame subassembly.

Drawings

FIG. 1 is a schematic diagram of a brake device in a brake release state according to a first embodiment of the present invention;

FIG. 2 is a schematic illustration of the brake assembly of FIG. 1 in a braking condition;

FIG. 3 is a schematic illustration of the brake assembly of FIG. 1 as the fork assembly rotates;

FIG. 4 is a schematic view of the fork assembly of the brake apparatus shown in FIG. 1;

FIG. 5 is a schematic structural diagram of a brake device in a brake release state according to a second embodiment of the present invention;

FIG. 6 is a schematic view of a second connection assembly of the brake apparatus shown in FIG. 5;

FIG. 7 is a schematic perspective view of a fork assembly of the brake apparatus shown in FIG. 5;

FIG. 8 is a schematic cross-sectional view of a fork assembly of the brake apparatus shown in FIG. 5;

FIG. 9 is a schematic illustration of the brake assembly of FIG. 5 in a braking condition;

FIG. 10 is a schematic view of a second connection assembly of the brake apparatus shown in FIG. 9;

FIG. 11 is a schematic perspective view of a fork assembly of the brake apparatus shown in FIG. 9;

FIG. 12 is a schematic structural diagram of a brake device in a brake release state according to a third embodiment of the present invention;

FIG. 13 is a schematic view of the brake device (at the time of brake release) shown in FIG. 12 in a right side portion of the frame body;

FIG. 14 is a schematic view of the right pedal shown in FIG. 13;

FIG. 15 is a schematic view of the left side portion of the frame body of the brake apparatus (at the time of brake release) shown in FIG. 12;

FIG. 16 is a schematic view of the left pedal shown in FIG. 15;

FIG. 17 is a schematic view showing a structure of the brake device (when braking) shown in FIG. 12 in a right side portion of the frame body;

FIG. 18 is a schematic view of the right pedal shown in FIG. 17;

FIG. 19 is a schematic view showing a structure of the brake device (when braking) shown in FIG. 12 in a left side portion of the frame body;

FIG. 20 is a schematic view of the left side pedal of FIG. 19;

FIG. 21 is a schematic view of a stroller in accordance with the present invention, wherein the reversing device is unlocked and the wheels on both the front and rear sides are universally rotatable;

figure 22 is the stroller of figure 21 with the reversing device in a first or second operative position with one of the front and rear wheels oriented and the other wheel being universally rotatable.

The reference numerals in the figures are:

100. A fork assembly; 110. a fork; 111. a first guide groove; 1110. a step; 112. a second guide groove; 113. a slide pin; 114. a lower guide pin; 115. a positioning groove; 120. a wheel; 130. a brake member; 131. a first slider; 1310. pit; 1311. a step portion; 132. a first elastic member; 133. a second slider; 1330. an inclined plane; 1331. a guide waist hole;

134. A lower slide block; 1340. a lower guide groove; 135. a lower pulley; 136. a lower traction member;

140. A brake disc; 150. a rotating shaft;

200. A frame assembly; 210. a pipe joint; 211. an upper guide pin; 221. a driving rod; 2210. a bending part; 222. a third slider; 2220. a pin shaft I; 223. a connecting rod; 2230. a waist-shaped hole; 2231. a rotating shaft; 224. a fourth slider; 2240. a second pin shaft; 225. a traction member; 226. a second elastic member; 227. an upper slider; 2270. an upper guide groove; 228. an upper pulley; 229. an upper traction member;

300. A frame main body; 301. a cross bar; 302. a pushing handle;

400. a pedal; 401. and positioning the protruding blocks.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

Example 1

As can be seen from the structural schematic diagrams of fig. 1 to 4, a brake apparatus of the present embodiment includes a frame assembly 200 coupled to a frame body 300, and a fork assembly 100 coupled under the frame assembly 200.

The fork assembly 100 includes a fork 110, a wheel 120 mounted on the fork 110, a rotation shaft 150 fixedly connected to the fork 110, a brake disc 140 provided on the wheel 120, a brake member 130 detachably connected to the brake disc 140, and a first connection assembly connected to the brake member 130 and capable of driving the brake member to move.

The frame assembly 200 includes a tube joint 210 pivotally coupled to the rotational shaft 150, and a second coupling assembly detachably coupled to the first coupling assembly and capable of applying a force to the first coupling assembly to actuate the same.

When the first connecting assembly is connected with the second connecting assembly and the second connecting assembly applies force to the first connecting assembly, the brake piece 130 is connected with the brake disc 140, and the brake device is in a braking state; when the force applied to the second connection assembly by the second connection assembly is removed, the brake member 130 is disengaged from the brake disc 140 and the brake device is in a released state.

In a more preferred embodiment, the fork assembly 100 is removably connected to the frame assembly 200, i.e., the fork assembly 100 is removable from the cart. Because the first connecting component and the second connecting component in the brake device are detachably matched with each other, the wheel fork component 100 and the frame component 200 can be easily detached, and the brake device cannot be affected after the detachment.

When the present brake apparatus is applied to a reversible stroller, an orientation mechanism is provided between the fork assembly 100 and the frame assembly 200 that allows the rotational relationship between the rotational shaft 150 and the coupler 210 to be restricted and released. The wheels 120 of the reversible stroller are universal wheels. When the relative rotation between the rotation shaft 150 and the pipe joint 210 is restricted, that is, the wheel 120 is used as a rear wheel, the first coupling member and the second coupling member are positioned correspondingly, so that they can be braked and unbuckled cooperatively. When the relative rotation between the rotation shaft 150 and the pipe joint 210 is released, that is, the wheel 120 is used as a front wheel, the wheel 120 is rotated in all directions during normal forward pushing, and the relative position between the first connection assembly and the second connection assembly is changed continuously by the rotation between the rotation shaft 150 and the pipe joint 210, so that the brake device is automatically disabled.

The second coupling assembly is located at one side of the rotation axis between the rotation shaft 150 and the pipe joint 210, i.e., the rotation axis does not pass through the second coupling assembly and the rotation axis does not pass through the first coupling assembly, and the first coupling assembly and the second coupling assembly are located at the same side of the rotation axis when the mutual rotation relationship between the rotation shaft 150 and the pipe joint 210 is restricted, and the first coupling assembly rotates along with the fork assembly 100 around the rotation axis when the mutual rotation relationship between the rotation shaft 150 and the pipe joint 210 is released.

In this embodiment, the first connecting assembly includes a first slider 131 slidably connected to the fork 110, and a first elastic member 132 capable of applying a force to the first slider 131 to slide it. Specifically, the first slider 131 is slidably disposed inside the fork 110, i.e., toward one side of the wheel 120, and the upper end portion of the first slider 131 extends above the fork 110, a guide groove (not shown in the drawings) in which the first slider 131 slides may be provided on the fork 110, and the first elastic member 132 is disposed between the fork 110 and the first slider 131, and the first elastic member 132 in this embodiment employs a compression spring. The brake member 130 is fixedly connected to the first slider 131, specifically, is fixed at the lower end of the first slider 131.

When the brake device is in a braking state, the second connection assembly applies a force to the first slider 131 and directly applies a force to the first slider 131. In this embodiment, the direction of the force applied by the second connection assembly to the first slider 131 is to slide toward the brake disc 140 so as to connect the brake member 130 to the brake disc 140, and conversely, the direction of the force applied by the first elastic member 132 to the first slider 131 is to slide away from the brake disc 140 so as to separate the brake member 130 from the brake disc 140.

The brake disc 140 is disposed on the hub of the wheel 120 and is disposed coaxially with the wheel 120, and the brake disc 140 has a plurality of brake grooves (not shown in the drawings) detachably connected to the brake member 130, and a more specific structure of the brake disc 140 may be adopted in the prior art, and is not an invention point, which will not be described in detail herein.

The second connection assembly in the present embodiment includes a driving lever 221 having a bending portion 2210 rotatably provided on the frame body 300, and a second elastic member 226 capable of rotating the driving lever 221 to move the bending portion 2210 in a direction away from the first connection assembly. The frame body 300 in this embodiment has a cross bar 301 connected between the left and right side pipe joints 210, and the driving lever 221 is disposed along the cross bar 301. The brake device further includes a pedal 400 capable of driving the driving rod 221 to rotate to move the bending portion 2210 toward the first connection assembly, and specifically, the pedal 400 is rigidly and fixedly connected to the driving rod 221. When the braking device is in a braking state, the bending portion 2210 applies a force to the first connection assembly, and the bending portion 2210 directly applies a force to the first connection assembly, in this embodiment, the bending portion 2210 directly applies a force to the first slider 131.

The part of the first connecting assembly, which is directly forced by the bending part 2210, is provided with a pit 1310, when the braking device is in a braking state, the force application part of the part on the bending part 2210 is clamped into the pit 1310, so that the braking device can be kept in the braking state. The pit 1310 in the present embodiment is disposed at the upper end of the first slider 131.

The fork assembly 100 and the frame assembly 200 are provided at both left and right sides of the frame body 300. By operating the pedal 400 at one time, the second connection assemblies on both the left and right sides are operated. In the specific structure of this embodiment, the second connection assemblies on the left and right sides share one driving rod 221, and both the left and right ends of the driving rod 221 have bending portions 2210, and the pedal 400 is connected with the middle portion of the driving rod 221. And the second elastic members 226 of the second connection assemblies on the left and right sides in the present embodiment are also common, which are also connected to the middle portion of the driving lever 221. In another structure, the second connection assemblies on the left and right sides are respectively provided with one driving rod 221, the two driving rods 221 are symmetrically arranged, the bending part 2210 is arranged at the outer end part of the driving rod 221, and the pedal 400 is respectively connected with the inner end parts of the two driving rods 221. The second elastic member 226 may employ a compression spring or a torsion spring.

The structure of the brake device can realize linkage braking, namely, the brake pieces 130 on the left side and the right side can realize braking by operating the pedal 400 once.

The embodiment also provides a child stroller, which is provided with the brake device. The stroller comprises a reversing device with two states, wherein four wheels of the stroller are universal wheels, a pushing handle of the stroller can be reversed, the reversing device can switch working states through reversing of the pushing handle, the above-mentioned orienting mechanisms are arranged at the wheels on the front side and the rear side, when the reversing device is in the first working state, one of the orienting mechanisms on the front side and the rear side is locked, the other side is unlocked, the other side is universal, when the reversing device is in the second working state, the one side is unlocked, the other side is universal, the other side is locked, and the other side is oriented.

The braking device can be arranged on any one of the front side and the rear side of the children's barrow, or the front side and the rear side of the children's barrow are provided with the braking device.

When the reversing device is in the first working state, the mutual rotation relationship between the rotating shaft 150 on one side and the pipe joint 210 is limited, namely, the wheels on one side are oriented, the positions of the first connecting component and the second connecting component on one side correspond, if the brake device is also arranged on the other side, the mutual rotation relationship between the rotating shaft 150 on the other side and the pipe joint 210 is released, namely, the wheels on the other side are universal, and the relative position between the first connecting component and the second connecting component on the other side is changed through the rotation between the rotating shaft 150 and the pipe joint 210; when the reversing device is in the second working state, the mutual rotation relationship between the rotating shaft 150 on the one side and the pipe joint 210 is released, namely the wheel on the one side is universal, the relative position between the first connecting component and the second connecting component on the one side is changed through the rotation between the rotating shaft 150 and the pipe joint 210, if the brake device is arranged on the other side, the mutual rotation relationship between the rotating shaft 150 on the other side and the pipe joint 210 is limited, namely the wheel on the other side is oriented, and the positions of the first connecting component and the second connecting component on the other side are corresponding.

Working principle:

Referring to fig. 2, when braking, the pedal 400 is stepped down to drive the driving rod 221 to rotate against the force of the second elastic member 226, so that the bending portion 2210 moves towards the first slider 131, the bending portion 2210 contacts with the first slider 131 to continuously push the first slider 131 to slide down against the force of the first elastic member 132, and the bending portion 2210 slides along the upper surface of the first slider 131 until sliding into the pit 1310, so that the brake member 130 at the lower end of the first slider 131 is connected with the brake disc 140 on the wheel 120, thereby realizing braking. The bent portion 2210 is caught in the recess 1310 on the first slider 131, thereby maintaining the brake device in a braked state without an external force. As shown in fig. 1, when the brake is released, the pedal 400 is lifted upwards to drive the driving rod 221 to rotate reversely, the bending part 2210 is separated from the pit 1310 and the first slider 131, and the first slider 131 loses the force applied by the second connecting component, so that the brake piece 130 slides upwards under the action of the first elastic piece 132, and the brake piece 130 is separated from the brake disc 140, so that the brake release is realized. The driving lever 221 is restored by the second elastic member 226 and is maintained at the position, thereby maintaining the brake device in the brake released state without an external force.

As shown in fig. 21, when the push handle 302 of the stroller rotates to the middle position, the reversing device is unlocked, that is, the reversing device is in the switching process of two working states, the orientation mechanisms on the front side and the rear side are both unlocked, the wheels on the two sides can all rotate in a universal way, when the push handle 302 rotates to one side, the reversing device is in one working state, fig. 22 illustrates that the push handle 302 rotates to the rear side, the orientation mechanism on the rear side is locked, the wheels 120a on the rear side are oriented, the braking device on the rear side can normally realize braking and braking, the orientation mechanism on the front side is unlocked, the wheels 120b on the front side can all rotate, at this time, as shown in fig. 3, the first connecting component rotates around the rotating shaft 150 along with the fork component 100, so that the position between the first connecting component and the second connecting component is continuously changed, the braking device on the front side is automatically disabled, and the stroller is braked by the braking device on the rear side; similarly, if the push handle 302 is turned to the front side, the front side directional mechanism is locked, the front side wheel 120b is oriented, the front side braking device can normally perform braking and unlocking, the rear side directional mechanism is unlocked, the rear side wheel 120a can rotate in a universal direction, the rear side braking device is automatically disabled, and the child stroller is braked by the front side braking device. If the child stroller is turned over and the side steering mechanism is unlocked in a state that the side steering mechanism is locked and braked, then after the child stroller is unlocked, the wheels 120 on the side can rotate in a universal direction, and then the child stroller is pushed, the wheel fork assembly 100 rotates to drive the first connecting assembly to change the relative position between the first connecting assembly and the second connecting assembly, so that the side brake mechanism can automatically brake, and therefore, when the child stroller is turned over in a state that the side steering mechanism is locked and braked, no additional brake releasing operation is needed, and normal use of the turned-over stroller cannot be influenced.

Example two

Referring to fig. 5 to 11, the brake device in this embodiment is different from the first embodiment in the structure of the first connection assembly and the second connection assembly.

The first connecting assembly in this embodiment includes a first slider 131 slidably connected to the fork 110, a first elastic member 132 capable of applying a force to the first slider 131 to slide, and a second slider 133 slidably connected to the fork 110, wherein the second slider 133 has a slope 1330 capable of slidably contacting the first slider 131 and pushing the first slider 131 to slide. Specifically, the second slider 133 is located above the first slider 131, and the inclined surface 1330 is a lower end surface of the second slider 133, both the first slider 131 and the second slider 133 are disposed inside the wheel fork 110, i.e. towards one side of the wheel 120, the first elastic member 132 is disposed between the first slider 131 and the wheel fork 110, and an upper end of the second slider 132 protrudes above the wheel fork 110 to be able to cooperate with the second connecting member. More specifically, the fork 110 has a first guide groove 111 in which the first slider 131 slides, the first slider 131 has a stepped portion 1311, the first guide groove 111 has a step 1110 in the interior thereof, the upward sliding position of the first slider 131 is restricted by the abutment of the step 1110 against the stepped portion 1311, the fork 110 also has a second guide groove 112 in which the second slider 133 slides, the second slider 133 has a guide waist hole 1331 formed therein, the fork 110 has a slide pin 113 provided in the guide waist hole 1331, and the upward and downward sliding position of the second slider 133 is restricted by the cooperation of the slide pin 113 and the guide waist hole 1331.

When the braking device is in a braking state, the second connecting component applies a force to the second slider 133 and directly applies a force to the upper end of the second slider 133, the direction of the force applied by the second connecting component and the first slider 131 to the second slider 133 is opposite, and the direction of the force applied by the inclined surface 1330 of the second slider 133 and the first elastic member 132 to the first slider 131 is opposite. In this embodiment, the second connecting component pushes the second slider 133, and the second slider 133 pushes the first slider 131 again to slide towards the brake disc 140, so that the brake member 130 is connected with the brake disc 140, and conversely, the first elastic member 132 pushes the first slider 131 to slide away from the brake disc 140, so that the brake member 130 is separated from the brake disc 140.

The second connecting assembly in this embodiment includes a third slider 222, a traction mechanism connected to the third slider 222, and a second elastic member 226 capable of applying a force to the third slider 222 or the traction mechanism to slide the third slider 222. The pedal 400 is connected to the traction mechanism and is capable of sliding the third slider 222 via the traction mechanism.

In a more preferred embodiment, the traction mechanism includes a traction member 225 having one end connected to the pedal 400, a fourth slider 224 connected to the other end of the traction member 225, a link 223 rotatably connected to the carriage body 300 and having one end rotatably connected to the fourth slider 224, and the other end of the link 223 is rotatably connected to the third slider 222. Specifically, in order to ensure that the third slider 222 and the fourth slider 224 can slide along the vertical path while the connecting rod 223 rotates, in this embodiment, two waist-shaped holes 2230 are formed in the connecting rod 223, the third slider 222 and the fourth slider 224 are respectively provided with a first pin 2220 and a second pin 2240, and the first pin 2220 and the second pin 2240 are respectively and correspondingly disposed in the two waist-shaped holes 2230. More specifically, the third slider 222 and the fourth slider 224 are respectively connected to both ends of the link 223, the link 223 is connected to the frame body 300 through a rotation shaft 2231, and the rotation shaft 2231 is provided at the middle of the link 223.

The second elastic member 226 in the present embodiment drives the third slider 222 to slide by applying a force to the traction mechanism. Specifically, the second elastic member 226 is a compression spring disposed between the fourth slider 224 and the carriage body 300.

When the brake device is in a braking state, the third slider 222 applies a force to the first connection assembly, and the third slider 222 directly applies a force to the second slider 133 in the first connection assembly.

The brake device structure in this embodiment may also realize linkage brake, and the specific structure is that the pedal 400 is rotationally connected at the middle part of the cross bar 301, and the first connecting components and the second connecting components on the left side and the right side are symmetrically arranged, and one ends of the traction members 225 on the left side and the right side are connected with the pedal 400.

The embodiment also provides a child stroller, which is provided with the brake device. The brake device can be arranged at the front wheel or the rear wheel, or the front wheel and the rear wheel are both provided with the brake device.

Working principle:

As shown in fig. 9-11, when braking, the pedal 400 is stepped down, the traction member 225 is pulled, so that the fourth slider 224 compresses the second elastic member 226 to slide upwards, and the connecting rod 223 is driven to rotate around the rotating shaft 2231, the third slider 222 is driven to slide downwards through the lever action of the connecting rod 223, the third slider 222 is contacted with the second slider 133, and then the second slider 133 is continuously pushed to slide downwards, the inclined surface 1330 of the second slider 133 pushes the first slider 131 to slide downwards against the force of the first elastic member 132, so that the brake member 130 at the lower end of the first slider 131 is connected with the brake disc 140 on the wheel 120, and braking is realized. As shown in fig. 5-8, when the pedal 400 is depressed during braking, when the pedal 400 is lifted upwards during braking, the fourth slider 224 slides downwards to reset under the action of the second elastic member 226, and the third slider 222 is driven to slide upwards through the connecting rod 223 to separate from the second slider 133; the force applied by the second connecting component is lost, the first sliding block 131 slides upwards under the action of the first elastic piece 132, meanwhile, the second sliding block 133 is jacked up to slide upwards, and the brake piece 130 on the first sliding block 133 is separated from the brake disc 140, so that brake release is realized. When the stroller is turned back and the wheel is used as a front wheel capable of rotating in a universal manner, the first connecting assembly rotates around the rotating shaft 150 along with the fork assembly 100, so that the positions of the first connecting assembly and the second connecting assembly are staggered, the braking device at the front wheel is automatically disabled, and the stroller is braked by the braking device at the other position at the rear wheel.

Example III

Referring to fig. 12 to 20, the brake device in this embodiment is different from the first and second embodiments in the structure of the first and second connection assemblies and the connection structure between the pedal and the first and second connection assemblies.

The first connecting component in this embodiment includes a lower slider 134 slidingly connected to the fork 110, a lower pulley 135 rotatably connected to the fork 110, and a lower traction member 136 having one end connected to the lower slider 134 and the other end connected to the braking member 130 by bypassing the lower pulley 135, and when the braking device is in a braking state, the second connecting component applies a force to the lower slider 134 and directly applies a force to the lower slider 134.

Specifically, the lower slider 134 is provided with a lower guide groove 1340, the fork 110 is fixedly provided with a lower guide pin 114, the lower guide pin 114 is arranged in the lower guide groove 1340, and when the lower slider 134 slides up and down, the cooperation of the lower guide groove 1340 and the lower guide pin 114 plays a role in guiding and limiting the sliding of the lower slider 134; the lower pulley 135 is rotatably connected to the lower guide pin 114, and an accommodating space is formed inside the lower slider 134, and the lower pulley 135 is disposed in the accommodating space; one end of the lower traction member 136 is connected to the lower portion of the lower slider 134, and the other end is connected to the pedal 400 while bypassing over the lower pulley 135 and then downward.

The first connection assembly further includes a first elastic member 132 capable of applying a force to the lower slider 134, the first elastic member 132 and the lower traction member 136 applying forces in opposite directions to the lower slider 134. In this embodiment, the first elastic member 132 is a compression spring disposed between the lower guide pin 114 and the lower slider 134, the first elastic member 132 can push the lower slider 134 to slide downward, and the lower traction member 136 can pull the lower slider 134 to slide upward.

The pedal 400 in this embodiment is rotatably connected to the fork 110, the brake member 130 is fixedly connected to the pedal 400, and the brake member 130 is connected to and disconnected from the brake disc 140 by rotation of the pedal 400. The other end of the lower traction member 136 is fixed on the pedal 400, and the pedal 400 can be pulled to rotate by the lower traction member 136, or the pedal 400 can be directly operated to rotate.

The second connector assembly of this embodiment includes an upper slider 227 slidably coupled within the coupler 210, an upper pulley 228 rotatably coupled within the coupler 210, and an upper tractor 229 having one end coupled to the upper slider 227 and the other end bypassing the upper pulley 228. When the brake is in the braked state, the upper slider 227 applies a force to the first connection assembly and the upper slider 227 directly applies a force to the lower slider 134 of the first connection assembly.

Specifically, an upper guide groove 2270 is formed on the upper slide block 227, an upper guide pin 211 is fixedly arranged on the pipe joint 210, the upper guide pin 211 is arranged in the upper guide groove 2270, and when the upper slide block 227 slides up and down, the upper guide groove 2270 and the upper guide pin 211 cooperate to guide and limit the sliding of the upper slide block 227; the upper pulley 228 is rotatably connected to the upper guide pin 211, and an accommodating space is formed in the upper slider 227, and the upper pulley 228 is disposed in the accommodating space; one end of the upper traction member 229 is connected to the upper portion of the upper slider 227, and the other end passes under the upper pulley 228. In one embodiment, the other end of the upper separator 229 is coupled to an operating member, which is a member that pulls the upper separator 229 by operating it, and which may be a single member or an assembly.

The second connection assembly further includes a second elastic member 226 capable of applying a force to the upper slider 227, the second elastic member 226 and the upper traction member 229 applying forces in opposite directions to the upper slider 227. In this embodiment, the second elastic member 226 is a compression spring disposed between the upper guide pin 211 and the upper slider 227, the second elastic member 226 can push the upper slider 227 on the side to slide upwards, and the upper traction member 229 can pull the upper slider 227 on the other side to slide downwards.

The brake device structure in this embodiment may also realize linkage brake, and the specific structure is that the first connecting components and the second connecting components on the left and right sides are all symmetrically arranged, and the pedals 400 are all arranged on the forks 110 on the left and right sides, and the pedals 400 on the left and right sides are respectively connected with the lower traction members 136 on the corresponding sides. The left and right upper traction members 229 may be connected, as in the present embodiment, the left and right second connection members share one upper traction member 229, and both ends of the upper traction member 229 are connected to the upper sliders 227 on both sides, respectively. The pedal 400 on one side (right side in this embodiment) is a brake operating member, the pedal 400 on the other side (left side in this embodiment) is a brake release operating member, when braking is performed, the pedal 400 on one side moves to connect the brake member 130 on the other side with the brake disc 140, and the first connection assembly on the one side applies a force to the second connection assembly, the second connection assembly on the one side drives the second connection assembly on the other side to apply a force to the first connection assembly on the other side through the traction member, and the first connection assembly on the other side connects the brake member 130 on the other side with the brake disc 140, so that the brake release process is opposite. The braking and unbraking processes and principles are specifically analyzed below.

In the braking device in this embodiment, when the state is switched, the movement directions of the pedals 400 on the left and right sides are opposite, that is, when the pedal 400 on one side rotates downward, the pedal 400 on the other side rotates upward, so that the operation action implemented by the operator is downward stepping, no matter braking or releasing braking, and no upward lifting action is needed, so that the operation is more labor-saving. Specifically, the connection positions of the brake members 130 on both sides are different on the respective pedals 400.

In a more preferred embodiment, the fork 110 is provided with two positioning grooves 115 which are arranged at intervals, the pedal 400 is provided with one positioning lug 401 which can be respectively and detachably connected with the two positioning grooves 115, when the brake device is in a brake release state, the positioning lug 401 is positioned in one positioning groove 115, when the brake device is in a brake state, the positioning lug 401 is positioned in the other positioning groove 115, so that the brake device can be kept in the brake state or the brake release state, when the state needs to be switched, the pedal 400 is directly applied with force, and the positioning lug 401 is led to be crossed into the other positioning groove 115 from one positioning groove 115 through the elasticity of the material.

The embodiment also provides a child stroller, which is provided with the brake device. The brake device can be arranged at the front wheel or the rear wheel, or the front wheel and the rear wheel are both provided with the brake device.

Working principle:

17-20, when in braking, the right pedal 400 is stepped down to rotate downwards, and the brake piece 130 on the right pedal 400 is connected with the brake disc 140, so as to realize the braking of the right wheel 120; simultaneously, the pedal 400 pulls the right lower traction member 136, the right lower traction member 136 pulls the right lower sliding block 134 to slide upwards against the force of the right first elastic member 132 due to the action of the right lower pulley 135, the right lower sliding block 134 pushes the right upper sliding block 227 to slide upwards against the force of the right second elastic member 226, the right upper sliding block 227 pulls the upper traction member 229 to slide downwards against the force of the left second elastic member 226 due to the action of the right upper pulley 228, the left upper sliding block 227 pulls the left upper sliding block 227 to slide downwards against the force of the left second elastic member 226 due to the action of the upper traction member 229, the left lower sliding block 134 pulls the left pedal 400 to rotate upwards due to the action of the left lower pulley 135, the left lower sliding block 134 pulls the left pedal 400 to rotate upwards through the left lower traction member 136, the brake member 130 on the left pedal 400 is connected with the brake disc 140, and the braking of the left wheel 120 is achieved. During braking, the positioning projection 401 on the right pedal 400 passes from the upper positioning groove 115 into the lower positioning groove 115 and is held therein, and the positioning projection 401 on the left pedal 400 passes from the lower positioning groove 115 into the upper positioning groove 115 and is held therein, thereby holding the brake device in a braking state without an external force.

13-16, During brake release, the left pedal 400 is stepped down to rotate downwards, and the brake piece 130 on the left pedal 400 is separated from the brake disc 140, so that brake release of the left wheel 120 is realized; simultaneously, the pedal 400 pulls the left lower traction member 136, the left lower traction member 136 pulls the left lower sliding block 134 to overcome the force of the left first elastic member 132 to slide upwards due to the action of the left lower pulley 135, the left lower sliding block 134 pushes the right pedal 400 to slide upwards against the force of the left second elastic member 226, the left upper sliding block 227 pulls the upper traction member 229 to integrally left due to the action of the left upper pulley 228, thereby pulling the right upper sliding block 227, the right upper sliding block 227 pulls the right upper sliding block 227 to slide downwards against the force of the right second elastic member 226 due to the action of the right upper pulley 228, the right lower sliding block 134 pushes the right lower sliding block 134 to slide downwards due to the action of the right lower pulley 135, the right lower sliding block 134 pulls the right pedal 400 to rotate upwards through the right lower traction member 136, the brake member 130 on the right pedal 400 is separated from the brake disc 140, and the brake release of the right wheel 120 is achieved. During the brake release, the positioning projection 401 on the left pedal 400 passes from the upper positioning groove 115 into the lower positioning groove 115 and is held therein, and the positioning projection 401 on the right pedal 400 passes from the lower positioning groove 115 into the upper positioning groove 115 and is held therein, thereby holding the brake device in the brake release state without an external force.

According to the braking device and the child stroller in the embodiment, the problem of braking of the universal wheels is solved, the first connecting component and the second connecting component are respectively arranged on the wheel fork component and the frame component which can rotate relatively, under the condition that the universal wheels are oriented, braking and braking can be realized through the cooperation action of the first connecting component and the second connecting component, linkage braking can be realized, and the operation is very simple; after the universal wheel is released from the orientation, the first connecting component can rotate along with the wheel fork component around the rotating shaft, the first connecting component and the second connecting component can not interfere, and the brake device can automatically fail; through adopting this brake equipment's structure for can realize dismantling between fork subassembly and the frame subassembly.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (18)

1. The utility model provides a brake equipment, includes frame subassembly (200) that connects on frame main part (300), connects fork subassembly (100) of frame subassembly (200) below, fork subassembly (100) include fork (110), install wheel (120) on fork (110), fixed connection in axis of rotation (150) above fork (110), frame subassembly (200) include with axis of rotation (150) looks pivoted coupling's coupling (210), its characterized in that:

The wheel fork assembly (100) further comprises a brake disc (140) arranged on the wheel (120), a brake piece (130) detachably connected with the brake disc (140), and a first connecting assembly connected with the brake piece (130) and capable of driving the brake piece to act;

The frame assembly (200) further comprises a second connecting assembly which is detachably connected with the first connecting assembly and can exert force on the first connecting assembly to enable the first connecting assembly to act;

When the first connecting component is connected with the second connecting component and the second connecting component applies force to the first connecting component, the brake piece (130) is connected with the brake disc (140), and the brake device is in a braking state; when the force applied by the second connecting component to the first connecting component disappears, the brake piece (130) is separated from the brake disc (140), the brake device is in a brake release state,

The steering device comprises a steering mechanism, a first connecting component, a second connecting component, a brake device and a brake device, wherein the steering mechanism is arranged between the steering mechanism (100) and a frame component (200) and can limit and release the mutual rotation relation between a rotating shaft (150) and a pipe joint (210), the first connecting component and the second connecting component are positioned on the same side of a rotation axis between the rotating shaft (150) and the pipe joint (210) when the mutual rotation relation between the rotating shaft (150) and the pipe joint (210) is limited, the brake device is in a braking state when the second connecting component applies force to the first connecting component, the brake device is in a brake release state when the force applied by the second connecting component to the first connecting component is removed, and the first connecting component can rotate around the steering mechanism (150) along with the steering mechanism (100) when the mutual rotation relation between the rotating shaft (150) and the pipe joint (210) is released, so that the positions of the first connecting component and the second connecting component are staggered, and the brake device is automatically disabled.

2. A brake apparatus according to claim 1, wherein: the left side and the right side of the frame main body (300) are respectively provided with a wheel fork assembly and a frame assembly, and the brake device further comprises a pedal (400) which is operated to enable the second connecting assemblies on the left side and the right side to act in a linkage way.

3. A brake apparatus according to claim 1, wherein: the first connecting component comprises a first sliding block (131) which is connected to the wheel fork (110) in a sliding way, and the brake piece (130) is fixedly connected to the first sliding block (131); the first connection assembly further includes a first elastic member (132) capable of applying a force to the first slider (131) to slide it.

4. A brake assembly according to claim 3, wherein: when the brake device is in a braking state, the second connecting assembly applies force to the first sliding block (131), and the direction of the second connecting assembly applied force to the first sliding block (131) by the second connecting assembly is opposite to that of the first elastic piece (132).

5. A brake assembly according to claim 3, wherein: the first connecting assembly further comprises a second slider (133) which is slidably connected to the fork (110), wherein an inclined surface (1330) which can be in sliding contact with the first slider (131) and push the first slider (131) to slide is arranged on the second slider (133), and the direction of the inclined surface (1330) and the direction of the first elastic piece (132) applying force to the first slider (131) are opposite; when the brake device is in a braking state, the second connecting assembly applies force to the second sliding block (133), and the direction of the second connecting assembly and the direction of the force applied by the first sliding block (131) to the second sliding block (133) are opposite.

6. A brake apparatus according to claim 1, wherein: the second connecting assembly comprises a third sliding block (222), a traction mechanism connected with the third sliding block (222), and a second elastic piece (226) capable of applying force to the third sliding block (222) or the traction mechanism to enable the third sliding block (222) to slide, and the brake device further comprises a pedal (400) connected with the traction mechanism and capable of operating the traction mechanism to enable the traction mechanism to drive the third sliding block (222) to slide, wherein when the brake device is in a braking state, the third sliding block (222) applies force to the first connecting assembly.

7. A brake apparatus according to claim 6, wherein: the traction mechanism comprises a traction piece (225) with one end connected with the pedal (400), a fourth sliding block (224) connected with the other end of the traction piece (225), and a connecting rod (223) rotatably connected to the frame main body and with one end rotatably connected with the fourth sliding block (224), wherein the other end of the connecting rod (223) is rotatably connected with the third sliding block (222).

8. A brake apparatus according to claim 6, wherein: the second elastic piece (226) drives the third sliding block (222) to slide by applying force to the traction mechanism.

9. A brake apparatus according to claim 1, wherein: the second connecting assembly comprises a driving rod (221) which is rotatably arranged on the frame body and provided with a bending part (2210), a second elastic piece (226) which can enable the driving rod (221) to rotate to enable the bending part (2210) to move in a direction away from the first connecting assembly, and a pedal (400) which can drive the driving rod (221) to rotate to enable the bending part (2210) to move towards the first connecting assembly, wherein when the brake device is in a braking state, the bending part (2210) applies force to the first connecting assembly.

10. A brake apparatus according to claim 9, wherein: a concave pit (1310) is arranged on a part directly forced by the bending part (2210) in the first connecting assembly, and when the brake device is in a braking state, the force application part of the part on the bending part (2210) is clamped into the concave pit (1310).

11. A brake apparatus according to claim 1, wherein: the wheel fork assembly (100) is detachably connected with the frame assembly (200).

12. A brake apparatus according to claim 1, wherein: the first connecting component comprises a lower sliding block (134) which is connected to the fork (110) in a sliding way, a lower pulley (135) which is connected to the fork (110) in a rotating way, and a lower traction piece (136) which is connected with the lower sliding block (134) at one end and connected with the brake piece (130) by bypassing the lower pulley (135) at the other end, wherein when the brake device is in a braking state, the second connecting component applies force to the lower sliding block (134); the first connection assembly further comprises a first elastic member (132) capable of applying force to the lower slider (134), and the direction of the force applied to the lower slider (134) by the first elastic member (132) and the lower traction member (136) is opposite.

13. A brake apparatus according to claim 12, wherein: the wheel fork (110) is rotatably connected with a pedal (400), the brake piece (130) is fixedly connected to the pedal (400), and the other end of the lower traction piece (136) is fixed to the pedal (400).

14. A brake apparatus according to claim 1, wherein: the second connecting assembly comprises an upper sliding block (227) which is connected in the pipe joint (210) in a sliding way, an upper pulley (228) which is connected in the pipe joint (210) in a rotating way, and an upper traction piece (229) which is connected with the upper sliding block (227) at one end and bypasses the upper pulley (228) at the other end, and when the brake device is in a braking state, the upper sliding block (227) applies a force to the first connecting assembly; the second connecting assembly further comprises a second elastic element (226) capable of applying force to the upper slider (227), and the direction of force applied to the upper slider (227) by the second elastic element (226) and the upper traction element (229) is opposite.

15. A brake apparatus according to claim 14, wherein: the other end of the upper traction member (229) is connected to an operating member by bypassing the upper pulley (228).

16. A brake apparatus according to claim 2, wherein: the pedal (400) is arranged on the left side and the right side of the frame main body (300), the pedal (400) is connected with the brake piece (130), the second connecting components on the left side and the right side of the frame main body are connected through traction components, the pedal (400) on one side is a brake operating component, the pedal (400) on the other side is a brake release operating component, when the brake device transits from a brake release state to a brake state, the pedal (400) on one side moves to enable the brake piece (130) on the one side to be connected with the brake disc (140), the first connecting component on the one side applies force to the second connecting component on the other side, and the second connecting component on the one side drives the second connecting component on the other side to apply force to the first connecting component on the other side through the traction components, and the first connecting component on the other side enables the brake piece (130) on the other side to be connected with the brake disc (140).

17. A brake apparatus according to claim 13, wherein: the wheel fork (110) is provided with two positioning grooves (115) which are arranged at intervals, the pedal (400) is provided with positioning convex blocks (401) which can be respectively and detachably connected with the two positioning grooves (115), when the brake device is in a brake release state, the positioning convex blocks (401) are positioned in one positioning groove (115), and when the brake device is in a brake state, the positioning convex blocks (401) are positioned in the other positioning groove (115).

18. The utility model provides a children's shallow, includes the switching-over device that has two kinds of operating condition, its characterized in that: at least one of the two opposite sides of the stroller in the front-rear direction is provided with a brake device according to any one of claims 1-17,

When the reversing device is in a first working state, the mutual rotation relation between the rotating shaft (150) on one side and the pipe joint (210) is limited, and the positions of the first connecting component and the second connecting component on the one side correspond; when the reversing device is in the second working state, the mutual rotation relation between the rotating shaft (150) on one side and the pipe joint (210) is released, and the relative position between the first connecting component and the second connecting component on one side is changed through rotation between the rotating shaft (150) and the pipe joint (210).