CN217518578U - Down-rolling type roller shutter with self-locking function - Google Patents

Abstract

The utility model relates to a lower rolling type rolling shutter with self-locking function, which comprises an upper track device, a shutter body connected with the upper track device, a lower track device connected with the shutter body and a control rod connected with the lower track device; the lower rail device comprises a reel mechanism, a rebounding mechanism connected inside the reel mechanism and a positioning mechanism connected to the rebounding mechanism; the rebounding mechanism comprises an accommodating box, an elastic sheet sleeved inside the accommodating box, a chuck assembly clamped inside the accommodating box, a shaft core assembly penetrating through the elastic sheet and a clamp spring. Through the utility model provides a roll up formula down and roll up curtain with self-locking function has solved the easy fracture of plastics stay cord among the correlation technique, and the reliability and the durability of rolling up the curtain are low, can produce the noise between plastics stay cord and the window to and the automatic locking structure of rolling up the curtain is complicated, and manufacturing cost is high, the not good problem of automatic locking effect.

Description

Down-rolling type roller shutter with self-locking function

Technical Field

The utility model relates to a roll up technical field of curtain, especially relate to a roll up formula down and roll up curtain with self-locking function.

Background

In the modern times, with the gradual increase of various office buildings and commercial office buildings, in order to meet the requirements of people in the office buildings and the commercial office buildings, a roller shutter is needed to protect the privacy of the interior and adjust whether the interior is lighted or not;

however, the roller shutter in the prior art uses the upward rolling type roller shutter and controls the lifting and falling of the roller shutter through the plastic pull rope, and the plastic pull rope is easy to break in the using process, so that the roller shutter cannot be normally operated, the reliability and durability of the roller shutter are reduced, and the user experience is influenced; in the daily use process of the roller shutter, if the plastic pull rope is close to the window, when the window is opened for ventilation, the plastic pull rope collides with the window under the action of wind, noise is generated, and the daily work of people is influenced; meanwhile, in the prior art, the automatic locking structure of the roller shutter is complex, the production cost is high, and the automatic locking effect is not good; therefore, the roller blinds of the prior art have not been able to meet the needs of contemporary people.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a down roll formula of rolling up curtain with self-locking function has solved the easy fracture of plastics stay cord among the correlation technique, and the reliability and the durability of rolling up the curtain are low, can produce the noise between plastics stay cord and the window to and the automatic locking structure of rolling up the curtain is complicated, and manufacturing cost is high, the not good problem of automatic locking effect.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

a lower rolling type rolling curtain with a self-locking function comprises an upper rail device, a curtain body connected with the upper rail device, a lower rail device connected with the curtain body and a control rod connected with the lower rail device; the lower rail device comprises a reel mechanism, a rebounding mechanism connected inside the reel mechanism and a positioning mechanism connected to the rebounding mechanism; the rebounding mechanism comprises an accommodating box, an elastic sheet sleeved in the accommodating box, a chuck assembly clamped in the accommodating box, a shaft core assembly penetrating through the inside of the elastic sheet and a clamp spring; one end of the accommodating box is provided with an opening, and the other end of the accommodating box is provided with a first through hole; after the elastic sheet is sleeved in the accommodating box through the opening, one end of the elastic sheet is connected to the accommodating box, and the other end of the elastic sheet is connected to the shaft core assembly; a clamping strip is arranged on one side of the chuck assembly, and a second through hole is formed in the center of the chuck assembly; the shaft core assembly penetrates through the chuck assembly through the second through hole, penetrates through the inside of the elastic sheet, penetrates through the outside of the accommodating box through the first through hole, and is clamped through the clamp spring; one end of the shaft core assembly is set to be a square end; the control rod is connected to the positioning mechanism.

In one embodiment, a convex strip is arranged on the inner side of the top of the reel mechanism; the outside at resilience mechanism top is equipped with the recess.

In one embodiment, the ribs cooperate with the grooves to enable the reel mechanism to move with the resilient structure.

In one embodiment, the positioning mechanism includes a carriage assembly and a card connected to the carriage assembly.

In one embodiment, the bracket assembly is provided with a third through hole and a fourth through hole; the bracket assembly is coupled to the lever.

In one embodiment, the third through hole is a square hole, and the fourth through hole is an arc-shaped waist-shaped hole.

In one embodiment, one end of the card is connected to the bracket assembly, the other end of the card penetrates through the bracket assembly through the fourth through hole, and the card is matched with the card strip.

In one embodiment, the square end of the spindle assembly is penetrated to the outside of the bracket assembly through the third hole.

In one embodiment, the center line of the shaft core component is located on the same straight line with the center lines of the first through hole, the second through hole and the third through hole respectively.

In one embodiment, the card can rotate freely, and the shape of the card is L-shaped.

Through the utility model provides a pair of roll up formula of rolling up curtain down with self-locking function, the beneficial effect of its realization is:

in the utility model, the curtain body is fixedly connected by the bottom of the upper track device, the curtain body is fixedly connected by the scroll mechanism in the lower track device, and the curtain body is wound on the scroll mechanism; the reel mechanism is connected with the rebound mechanism, under the mutual matching of the containing box, the chuck assembly, the shaft core assembly and the elastic sheet in the rebound mechanism, after the curtain body is pulled down, the shaft core component and the reel mechanism, the accommodating box and the chuck component move relatively, and under the action of the elastic sheet, the reel mechanism, the accommodating box and the chuck assembly can rebound in the opposite direction, meanwhile, the control rod applies force in the corresponding direction to the lower track device, so that the roller shutter can automatically rebound after being pulled down, and meanwhile, the plastic pull rope is prevented from being easily broken, the roller shutter can not be normally operated, and when the window is opened for ventilation, the plastic pull rope collides with the window to generate noise, so that the practicability, convenience and durability of the roller shutter are effectively improved; the square end of the shaft core component is matched with the third through hole, so that when the control rod applies force in a corresponding direction to the positioning mechanism, the movement direction of the shaft core component can be the same as that of the control rod under the interaction of the third through hole and the square end of the shaft core component; among the positioning mechanism the one end of card connect in on the bracket assembly, the other end of card passes through fourth through-hole run through in behind the bracket assembly, just the card can the free rotation, the shape of card is L shape, the fourth through-hole is circular-arc waist shape hole, in order to realize the card can be in according to its dead weight the inside free rotation in fourth through-hole, and with the card strip carries out the joint, and is right chuck assembly advances line location to realized rolling up and can carry out the auto-lock after the curtain reachs the relevant position, prevent the gliding and the bounce-back of rolling up the curtain, simple structure has effectively promoted the auto-lock effect of rolling up the curtain, has reduced manufacturing cost.

Drawings

Fig. 1 is a schematic perspective view of a roll-down blind with a self-locking function according to an embodiment of the present invention;

FIG. 2 is a perspective view illustrating a lower rail assembly of the self-locking down-rolling blind of FIG. 1;

FIG. 3 is an exploded view of the lower rail assembly of the self-locking down-wound roll screen of FIG. 2 from another perspective;

FIG. 4 is an enlarged schematic view taken at circle A of FIG. 3;

FIG. 5 is an enlarged schematic view taken at circle B of FIG. 3;

FIG. 6 is an enlarged schematic view taken at circle C of FIG. 3;

FIG. 7 is an exploded view of a rebound mechanism of the down-wound roll screen having a self-locking function shown in FIG. 3;

FIG. 8 is a perspective view of another perspective of the receiving box of the down-rolling blind with self-locking function shown in FIG. 7;

FIG. 9 is a sectional view of a rebound mechanism in the down-wound roll screen having a self-locking function shown in FIG. 3;

FIG. 10 is an exploded view of a positioning mechanism of the roll-down screen with self-locking function shown in FIG. 3;

fig. 11 is a perspective view illustrating another view of a card in the roll-down screen with a self-locking function of fig. 10.

Reference is made to the accompanying drawings in which:

10-an upper track device;

20-a curtain body;

30-lower track device, 31-scroll mechanism, 311-convex strip, 32-rebound mechanism, 321-containing box, 321A-groove, 321B-opening, 321C-first through hole, 322-elastic sheet, 323-chuck component, 323A-second through hole, 323B-clamping strip, 324-shaft core component, 324A-square end, 325-clamping spring, 33-positioning mechanism, 331-bracket component, 331A-third through hole, 331B-fourth through hole and 332-card;

40-control rod.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are illustrated in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 11, a roll-down blind with a self-locking function according to an embodiment of the present invention includes an upper rail device 10, a blind 20 connected to the upper rail device 10, a lower rail device 30 connected to the blind 20, and a control rod 40 connected to the lower rail device 30.

The lower rail device 30 includes a reel mechanism 31, a rebound mechanism 32 connected to the inside of the reel mechanism 31, and a positioning mechanism 33 connected to the rebound mechanism 32; the inner side of the top of the reel mechanism 31 is provided with a convex strip 311, and the outer side of the top of the rebound mechanism 32 is provided with a groove 321A; specifically, the outer side of the top of the accommodating box 321 is provided with a groove 321A, and the protruding strip 311 is matched with the groove 321A to realize that the reel mechanism 31 can move along with the rebound structure 32; the reel mechanism 31 is provided at both ends thereof with the same rebound mechanisms 32, respectively.

The rebounding mechanism 32 comprises an accommodating box 321, an elastic sheet 322 sleeved inside the accommodating box 321, a chuck assembly 323 clamped inside the accommodating box 321, a shaft core assembly 324 penetrating inside the elastic sheet 322 and a snap spring 325; one end of the accommodation box 321 is provided with an opening 321B, and the other end of the accommodation box 321 is provided with a first through hole 321C. In this embodiment, the first through hole 321C is a circular through hole, and in other embodiments, the first through clip 321C may also be a hole with other shapes, as long as the shaft core assembly 324 can penetrate through the accommodating box 321 through the first through hole 321C, and the first through clip is not limited to the circular through hole in this embodiment.

After the elastic piece 322 is sleeved inside the accommodating box 321 through the opening 321B, one end of the elastic piece is connected to the accommodating box 321, and the other end is connected to the shaft core assembly 324; specifically, one end of the outer ring of the elastic sheet 322 is connected to the accommodating box 321, and one end of the inner ring of the elastic sheet 322 is connected to the shaft core assembly 324. In this embodiment, the one end of shell fragment 322 outer lane is connected in holding box 321, and the one end of shell fragment 322 inner lane is connected in axle core subassembly 324 to the realization holds box 321 and axle core subassembly 324 and carries out relative motion under the effect of shell fragment 322 resilience force itself, thereby has realized the function that the roll-up curtain can kick-back automatically. A clamping strip 323B is arranged on one side of the chuck assembly 323, and a second through hole 323A is formed in the center of the chuck assembly 323; specifically, the card bar 323B is annularly distributed about the center of the chuck assembly 323. In this embodiment, a side of the chuck assembly 323 is provided with a card strip 323B, and the card strip 323B is annularly distributed with respect to the center of the chuck assembly 323, so that the card 332 is matched with the card strip 323B.

The shaft core component 324 penetrates through the chuck component 323 through the second through hole 323A, penetrates through the elastic sheet 322, penetrates through the first through hole 321C to the outside of the accommodating box 321, and is clamped on the shaft core component 324 by using the clamp spring 325; one end of the spindle assembly 324 is configured as a square end 324A; the square end 324A of the spindle assembly 324 penetrates to the outside of the bracket assembly 331 through the third through hole 331A; the center line of the shaft core component 324 is on the same straight line with the center lines of the first through hole 321C, the second through hole 323A and the third through hole 331A.

In the present embodiment, the bottom of the upper rail device 10 fixedly connects the curtain body 20, the roller mechanism 31 in the lower rail device 30 fixedly connects the curtain body 20, and the curtain body 20 is wound on the roller mechanism 31; reel mechanism 31 is connected with resilience mechanism 32, hold box 321 in resilience mechanism 32, chuck subassembly 323, axle core subassembly 324 and shell fragment 322 mutually support down under, after curtain body 20 pulls down, axle core subassembly 324 and reel mechanism 31, do relative motion between holding box 321 and the chuck subassembly 323, and under the effect of shell fragment 322, reel mechanism 31, it can kick-back in the opposite direction to hold box 321 and chuck subassembly 323, exert the power of corresponding direction through control lever 40 to lower rail set 30 simultaneously, in order to realize rolling up the curtain after the pulling down, can kick-back automatically, avoided the easy emergence fracture of plastics stay cord simultaneously, to the unable normal operating of rolling up the curtain, and when opening the window ventilation, plastics stay cord and window bump and produce the noise, thereby effectively promoted the practicality of rolling up the curtain, convenience and durability.

The positioning mechanism 33 includes a bracket assembly 331 and a card 332 connected to the bracket assembly 331; the bracket assembly 331 is provided with a third through hole 331A and a fourth through hole 331B; the third through hole 331A is a square hole, and the fourth through hole 331B is a circular arc-shaped kidney-shaped hole. The card 332 can rotate freely, and the shape of the card 332 is L-shaped; one end of the card 332 is connected to the bracket assembly 331, and the other end of the card 332 penetrates the bracket assembly 331 through the fourth through hole 331B and then is engaged with the card strip 323B. The control lever 40 is connected to the bracket assembly 331. In this embodiment, the connection manner between the card 332 and the bracket assembly 331 is a bolt connection, and in other embodiments, the connection manner between the card 332 and the bracket assembly 331 may also be a pin connection or other connection, as long as the card can move freely, and is not limited to the connection manner in this embodiment.

In this embodiment, the square end 324A of the spindle assembly 324 is matched with the third through hole 331A, so that when the control rod 40 applies a force in a corresponding direction to the positioning mechanism 33, the spindle assembly 324 can move in the same direction as the control rod 40 through the interaction between the third through hole 331A and the square end 324A of the spindle assembly 324; card 332's one end is connected on bracket assembly 331 in positioning mechanism 33, card 332's the other end runs through behind bracket assembly 331 through fourth through-hole 331B, and card 332 can the free rotation, card 332's shape is L shape, fourth through-hole 331B is circular-arc waist shape hole, in order to realize that card 332 can be according to its dead weight at fourth through-hole 331B's inside free rotation, and carry out the joint with card strip 323B, in order to realize fixing a position chuck assembly 323, thereby realized rolling up and can carry out the auto-lock after curtain reachs corresponding position, prevent the gliding and the bounce-back of rolling up the curtain, moreover, the steam generator is simple in structure, the auto-lock effect of rolling up the curtain has effectively been promoted, and the production cost is reduced.

The working principle is as follows: firstly, connecting a corresponding hook or a hanging rope on the top of the upper rail device 10 according to the position of a window, and fixing the upper rail device 10 on a wall body; then, a user's hand extends to the back of the curtain body 20 to hold the control rod 40 and press down, the bracket assembly 331 drives the shaft core assembly 324 to rotate downward, the shaft core assembly 324 simultaneously drives the elastic sheet 322 to rotate, meanwhile, the clamping strip 323B and the clamping strip 332 are in a loose state, the clamping strip 332 slides to the lowest position along the fourth through hole 331B under the action of self gravity until the clamping strip 323B is separated from the clamping strip 331B, and at the moment, the roller shutter can be arbitrarily pushed up or pulled down; finally, when the roller shutter rises or falls to a proper position, the control rod 40 is loosened, the elastic sheet 322 enables the lower track device 30 and the control rod 40 to move in opposite directions under the action of self-resilience force until the bracket assembly 331 and the control rod 40 reset, the clamping sheet 332 returns to the initial position under the action of self-gravity until the clamping sheet 332 is completely and tightly clamped with the clamping strip 323B, at the moment, the roller shutter finishes self-locking, and the control rod 40 returns to the back of the shutter body 20.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A roll-down curtain with a self-locking function, comprising:

an upper track device;

a curtain body connected to the upper track device;

a lower track means connected to said curtain body; the lower rail device comprises a reel mechanism, a rebounding mechanism connected inside the reel mechanism and a positioning mechanism connected to the rebounding mechanism; the rebounding mechanism comprises an accommodating box, an elastic sheet sleeved in the accommodating box, a chuck assembly clamped in the accommodating box, a shaft core assembly penetrating through the inside of the elastic sheet and a clamp spring; one end of the accommodating box is provided with an opening, and the other end of the accommodating box is provided with a first through hole; after the elastic sheet is sleeved in the accommodating box through the opening, one end of the elastic sheet is connected to the accommodating box, and the other end of the elastic sheet is connected to the shaft core assembly; a clamping strip is arranged on one side of the chuck assembly, and a second through hole is formed in the center of the chuck assembly; the shaft core assembly penetrates through the chuck assembly through the second through hole, penetrates through the inner part of the elastic sheet, penetrates through the first through hole to the outer part of the accommodating box, and is clamped through the clamp spring; one end of the shaft core assembly is set to be a square end; and

a control lever connected to the lower track device; the control rod is connected to the positioning mechanism.

2. The self-locking down-wound roll screen according to claim 1, wherein the inside of the top of the winding shaft mechanism is provided with a convex strip; the outside at resilience mechanism top is equipped with the recess.

3. The self-locking roll-down blind of claim 2 wherein said ribs cooperate with said grooves to enable said roller mechanism to follow the movement of said resilient mechanism.

4. The self-locking roll-down screen of claim 1, wherein the positioning mechanism comprises a bracket assembly and a card connected to the bracket assembly.

5. The self-locking down-wound roll screen according to claim 4, wherein the bracket assembly is connected to the control rod; and the bracket component is provided with a third through hole and a fourth through hole.

6. The roll-down blind with self-locking function of claim 5 wherein said third through hole is a square hole and said fourth through hole is a circular arc waist-shaped hole.

7. The self-locking roll-down blind of claim 6 wherein one end of the locking piece is connected to the bracket assembly, and the other end of the locking piece is inserted through the fourth through hole and then is engaged with the locking strip.

8. The self-locking down-wound roll screen according to claim 5, wherein the square end of the spindle assembly is penetrated to the outside of the bracket assembly through the third through hole.

9. The self-locking roll-down blind according to claim 5, wherein the center line of the shaft core assembly is aligned with the center lines of the first through hole, the second through hole and the third through hole, respectively.

10. The self-locking roll-down screen of claim 4, wherein the card is freely rotatable and has an L-shape.

Images