CN221813559U - Rotatable seat with locking mechanism - Google Patents

Abstract

The utility model discloses a rotatable seat with a locking mechanism, which comprises a base assembly, a connecting seat, a supporting seat, a seat support and a seat back, wherein the connecting seat is arranged at the top of the base assembly; the support seat is arranged at the bottom of the chair seat, is positioned above the connecting seat and is rotationally connected with the connecting seat, and the chair seat can rotate to a plurality of using positions relative to the chair back; the movable locking mechanism and the elastic mechanism which is connected with the locking mechanism and applies acting force to the locking mechanism are arranged on the supporting seat, and a plurality of matching mechanisms corresponding to the using positions are arranged on the connecting seat; when the seat rotates to any use position, the locking mechanism is in locking fit with the matching mechanism under the action of the acting force, or when the locking mechanism is subjected to the external force overcoming the acting force, the locking mechanism is separated from the matching mechanism. The utility model can lock the chair seat at the using position relative to the chair back as required, and keep the relative position of the chair seat and the chair back stable.

Description

Rotatable seat with locking mechanism

Technical Field

The utility model relates to the technical field of seats, in particular to a rotatable seat with a locking mechanism.

Background

The existing office or leisure chair seat is basically rotatable, and a user can rotate to different angles as required to adjust the orientation. However, the existing seats are characterized in that the seat and the chair back are linked, and are rotated relative to the base structure at the same time, and cannot rotate relative to the base structure, so that a user is caused to use the seat in a posture of being only backed on the chair back. If the seat is designed to rotate relative to the chair back, and corresponding locking measures are lacking, when a user twists the body or steps on the ground to exert force, the seat can rotate relative to the chair back and cannot be stably kept at a specific relative position, so that the use experience of the user is definitely reduced.

Disclosure of utility model

The rotatable seat with the locking mechanism can lock the seat base at the use position relative to the seat back according to the requirement, so that the relative position of the seat base and the seat back is kept stable, and the use experience of a user is improved.

In order to solve the problems, the utility model adopts the following technical scheme:

The embodiment of the utility model provides a rotatable seat with a locking mechanism, which comprises a base assembly, a connecting seat, a supporting seat, a seat and a chair back, wherein the connecting seat is arranged at the top of the base assembly, and the chair back is fixedly connected with the connecting seat; the support seat is arranged at the bottom of the chair seat, is positioned above the connecting seat and is rotationally connected with the connecting seat, and the chair seat can rotate to a plurality of using positions relative to the chair back; the movable locking mechanism and the elastic mechanism which is connected with the locking mechanism and applies acting force to the locking mechanism are arranged on the supporting seat, and a plurality of matching mechanisms corresponding to the using positions are arranged on the connecting seat; when the chair seat rotates to any using position, the locking mechanism is in locking fit with the matching mechanism under the action of the acting force so as to limit the rotation of the chair seat relative to the chair back, or when the locking mechanism is subjected to the external force overcoming the acting force, the locking mechanism is separated from the matching mechanism so that the chair seat can rotate relative to the chair back.

In some embodiments, the locking mechanism comprises a rotating rod and a locking rod connected with the rotating rod, the rotating rod is rotationally connected with the supporting seat, an annular groove is formed in the connecting seat, the rotation axes of the connecting seat and the supporting seat are coaxial with the axis of the annular groove, and the matching mechanism is a limit groove arranged on the side wall of the annular groove; the locking rod is arranged in the annular groove, and the acting force exerted by the elastic mechanism enables the locking rod to move towards the side wall of the annular groove with the limit groove; when the locking rod is clamped into the limit groove, the locking mechanism is locked and matched with the matching mechanism, and when the locking rod moves out of the limit groove, the locking mechanism is separated from the matching mechanism.

In some embodiments, the top surface of the supporting seat is provided with a groove, the rotating rod and the elastic mechanism are both arranged in the groove, the bottom wall of the groove is provided with a penetrating groove, and the locking rod extends out of the supporting seat through the penetrating groove and can move in the penetrating groove.

In some embodiments, the inner wall of the groove is provided with a slot penetrating to the surface of the supporting seat, one end of the rotating rod is rotatably connected with the supporting seat, and the other end of the rotating rod extends out of the supporting seat through the slot and can move in the slot.

In some embodiments, the elastic mechanism comprises a spring, one end of the spring is connected with the supporting seat, and the other end of the spring is connected with the rotating rod.

In some embodiments, the connection mount is rotatably coupled to the base assembly.

In some embodiments, the chair back includes a back portion and two support portions located on left and right sides of the back portion, respectively, and extending in a direction away from each other; the seat can rotate to two using positions relative to the chair back, when the seat rotates to the front side of the seat opposite to the chair back, the seat is in one using position, and when the seat rotates to the back side of the seat opposite to the chair back, the seat is in the other using position.

In some embodiments, the chair further comprises a connecting strip, and two ends of the connecting strip are fixedly connected with the chair back and the connecting seat respectively.

In some embodiments, the connecting bar comprises a first connecting section and a second connecting section, one end of the first connecting section is connected with the connecting seat, the other end extends to the rear side of the seat and is connected with one end of the second connecting section, and the other end of the second connecting section is bent upwards and is connected with the back rest part.

In some embodiments, the rear side of the seat top surface is provided with a convex fence portion, the front side of the seat top surface is provided with a convex bulge portion, and the front side of the fence portion is in a concave arc shape.

The utility model has at least the following beneficial effects: when the chair is used, when the chair seat rotates to any use position relative to the chair back, the elastic mechanism exerts an acting force on the locking mechanism to enable the locking mechanism to be in locking fit with the matching mechanism, so that the rotation of the chair seat relative to the chair back is limited, and the relative position of the chair seat and the chair back is kept stable; when a user applies external force to the locking mechanism, the locking mechanism can overcome the acting force of the elastic mechanism, the locking mechanism can be separated from the matching mechanism, and the chair seat can rotate relative to the chair back so as to restore the state that the chair seat rotates freely relative to the chair back; therefore, the utility model can lock the chair seat at the using position relative to the chair back as required, keep the relative position of the chair seat and the chair back stable, and promote the using experience of users.

Drawings

FIG. 1 is a schematic view of a rotatable seat with a locking mechanism in accordance with one embodiment of the present utility model in a use position;

FIG. 2 is a schematic view of a rotatable seat with a locking mechanism according to one embodiment of the present utility model in another use position of the seat;

FIG. 3 is a schematic view showing the structures of a support bar, a connection base, a support base and a seat according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a support bar, a connector, a support base and a seat according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a connecting seat according to an embodiment of the present utility model;

FIG. 6 is a schematic view illustrating a structure of a supporting seat according to an embodiment of the utility model;

FIG. 7 is a schematic view of a chair back according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a rotatable seat with a locking mechanism according to another embodiment of the present utility model;

Fig. 9 is a schematic structural view of a seat according to an embodiment of the present utility model.

Wherein, the reference numerals are as follows:

A base assembly 100, casters 101, a base 110, a support bar 120;

A connecting seat 200, a ring groove 210;

Seat 300, enclosure 310, ridge 320, groove 330;

a back 400, a backrest portion 410, a support portion 420;

A connecting bar 500, a first connecting section 510, a second connecting section 520;

the support base 600, the groove 610, the through groove 620, the rotation hole 630;

locking mechanism 700, rotating lever 710, locking lever 720;

Fitting mechanism 800, limit groove 810

Elastic mechanism 900, spring 910.

Detailed Description

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the utility model as defined in the claims and their equivalents. The description includes various specific details to aid in understanding, but these details should be regarded as merely exemplary. Accordingly, those skilled in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the utility model.

In the description of the present utility model, references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

It will be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element or there can be intervening elements (e.g., a third element) between the element and the other element.

Embodiments of the present utility model provide a rotatable seat with a locking mechanism, as shown in fig. 1, 3 and 4, comprising a base assembly 100, a connection base 200, a support base 600, a seat 300 and a seatback 400. The user is seated on the seat 300 and the back 400 is configured for the user to lean back. The connection seat 200 is provided at the top of the base assembly 100, and the seatback 400 is fixedly coupled to the connection seat 200 and may be positioned at the rear side of the seat 300. The support base 600 of the seat 300 is disposed at the bottom of the seat 300, and the support base 600 is located above the connection base 200 and is rotatably connected with the connection base 200, so that the seat 300 can rotate relative to the backrest 400. A plurality of use positions may be preset such that the seat 300 may be rotated relative to the back 400 to the plurality of use positions. The base assembly 100 is used to provide support to the structure above it so that the seat 300 can be raised a certain height relative to the ground.

The supporting seat 600 is provided with a movable locking mechanism 700 and an elastic mechanism 900 which is connected with the locking mechanism 700 and applies acting force to the locking mechanism 700, the connecting seat 200 is provided with a plurality of matching mechanisms 800 corresponding to using positions, and the matching mechanisms 800 can be in one-to-one correspondence with the using positions, namely, each using position is provided with the corresponding matching mechanism 800. Since the locking mechanism 700 is movable, it can be locked to the engaging mechanism 800 or separated from the engaging mechanism 800, and the force applied by the elastic mechanism 900 causes the locking mechanism 700 to move in the direction of locking engagement with the engaging mechanism 800.

When the seat 300 rotates to any use position relative to the back 400, the locking mechanism 700 is locked and engaged with the engaging mechanism 800 under the force applied by the elastic mechanism 900, so as to limit the rotation of the seat 300 relative to the back 400 and keep the relative positions of the seat 300 and the back 400 stable. When the user applies an external force to the locking mechanism 700, so that the locking mechanism 700 can overcome the acting force of the elastic mechanism 900, the locking mechanism 700 moves away from the matching mechanism 800, the locking mechanism 700 is separated from the matching mechanism 800, and further the rotation of the seat 300 relative to the chair back 400 is not limited, the seat 300 can rotate relative to the chair back 400, and the state that the seat 300 freely rotates relative to the chair back 400 is restored, so that the user can adjust the relative positions of the seat 300 and the chair back. Therefore, the present embodiment can lock the seat 300 at the use position relative to the chair back 400 as required, keep the relative position of the seat 300 and the chair back 400 stable, and improve the use experience of the user.

In this embodiment, the connection base 200 may be connected to the base assembly 100, or may be rotatably connected to the base assembly 100. The support base 600 may be integrally connected to the seat 300, or may be fixed to the bottom of the seat 300.

In some embodiments, as shown in fig. 3-6, the locking mechanism 700 includes a rotating rod 710 and a locking rod 720 connected to the rotating rod 710, the rotating rod 710 is rotationally connected to the supporting seat 600, when the rotating rod 710 rotates, the corresponding rotating rod 720 is also driven to rotate, and the rotating rod 710 rotates to drive the locking mechanism 700 to switch states. The connection base 200 is provided with the ring groove 210, the rotation axes of the connection base 200 and the support base 600 are coaxial with the axis of the ring groove 210, and the locking lever 720 is disposed in the ring groove 210, so that when the support base 600 rotates relative to the connection base 200, the locking lever 720 rotates in the ring groove 210 so as not to affect the rotation of the seat 300.

The engaging mechanism 800 is a limiting groove 810 provided on a side wall of the ring groove 210, and the force applied by the elastic mechanism 900 causes the locking lever 720 to move toward the side wall of the ring groove 210 having the limiting groove 810. The use position corresponds to the limit groove 810, when the seat 300 rotates to the use position, the locking rod 720 is positioned at the joint of the limit groove 810 and the ring groove 210, and under the action of the elastic mechanism 900, the locking rod 720 is clamped into the limit groove 810 to limit the rotation of the locking rod 720, and the locking mechanism 700 is in locking fit with the matching mechanism 800. When the user applies a force to the rotating lever 710 so that the locking lever 720 moves out of the limit groove 810, the limit groove 810 no longer limits the locking lever 720, the locking lever 720 enters the ring groove 210, the state that the locking mechanism 700 can rotate in the ring groove 210 is restored, and the locking mechanism 700 is separated from the matching mechanism 800.

Further, the top surface of the support base 600 is provided with a groove 610, the rotating rod 710 and the elastic mechanism 900 are both disposed in the groove 610, the bottom wall of the groove 610 is provided with a penetrating groove 620, the locking rod 720 extends out of the support base 600 through the penetrating groove 620, so that the locking rod 720 can be inserted into the ring groove 210, and the locking rod 720 can move in the penetrating groove 620, so that the locking rod 720 can enter into the limit groove 810 or move out of the limit groove 810. The groove 610 of the present embodiment can protect the rotating rod 710 and the elastic mechanism 900, so as to prevent the rotating rod 710 and the elastic mechanism 900 from being directly exposed outside, and meanwhile, the external structure of the supporting seat 600 can be rotationally connected with the connecting seat 200, so that interference with the rotating rod 710 and the elastic mechanism 900 in the groove 610 can not occur.

Further, the inner wall of the groove 610 is provided with a slot penetrating to the surface of the support base 600, one end of the rotating rod 710 is rotatably connected with the support base 600, and the other end extends out of the support base 600 through the slot and can move in the slot. Because the other end of the rotating rod 710 is exposed, the user can move the rotating rod 710 at any time, so that the rotating rod 710 can be manually operated when the locking mechanism 700 is required to be separated from the matching mechanism 800, the chair seat 300 is not required to be detached from the supporting seat 600, and the use is more convenient.

In some embodiments, the elastic mechanism 900 includes a spring 910, one end of the spring 910 is connected to the support base 600, and the other end is connected to the rotating lever 710, and the locking mechanism 700 is urged to move toward the locking engagement with the engagement mechanism 800 by the tension generated by the spring 910. And after locking mechanism 700 is in locking engagement with engagement mechanism 800, spring 910 may still provide a force such that locking mechanism 700 is difficult to separate from engagement mechanism 800 by itself, and may well maintain the locked engagement condition to allow seat 300 to remain stably in the use position.

In some embodiments, as shown in fig. 1, the connecting seat 200 is rotatably connected with the base assembly 100, so that the backrest 400 and the seat 300 can both rotate relative to the base assembly 100, and thus, the backrest 400 and the seat 300 have various positions and orientations, which can further enhance the user experience.

In some embodiments, as shown in fig. 1, 2 and 7, the chair back 400 of the present embodiment includes a back rest 410 and two support parts 420, the two support parts 420 being located at left and right sides of the back rest 410 and extending in directions away from each other, respectively.

The seat 300 can rotate to two use positions relative to the back 400, as shown in fig. 1, when the seat 300 rotates to the front side facing the back 400, the seat 300 is in one of the use positions, the back of the user facing the back 400, and the back of the user can lean against the back 400, which is the use posture of the conventional use seat. As shown in fig. 2, when the seat 300 is rotated to the back side facing the back 400, the seat 300 is in another use position, the user sitting on the seat 300 faces the back 400, and the user's hands can be respectively put on the two supporting parts 420 to form a use posture different from the conventional use posture, which can be used to move the body by switching the other use posture after using the seat in the conventional use posture for a long time, thereby avoiding the discomfort on the body caused by maintaining the same use posture for a long time. Therefore, the embodiment can enable the user to have various using gestures, and the using experience of the user is improved.

Further, as shown in fig. 8, the rotatable seat with a locking mechanism of the present embodiment further includes a connecting bar 500, and two ends of the connecting bar 500 are fixedly connected to the seat back 400 and the connecting seat 200, respectively. The chair back 400 and the connecting seat 200 are connected by the connecting strip 500, the whole connecting structure is simpler, the width of the connecting strip 500 is smaller, the occupied space is small, unlike the conventional connecting structure, the movable space is provided for the legs of a user facing the chair back 400, the two legs of the user can be respectively placed on the two sides of the connecting strip 500, and the comfort of the user in the using posture is improved.

In this embodiment, the connection bar 500 may be made of steel bars to secure structural strength.

Still further, the connecting strip 500 includes a first connecting section 510 and a second connecting section 520, wherein one end of the first connecting section 510 is connected to the connecting seat 200, and the other end extends toward the rear side of the seat 300 and is connected to one end of the second connecting section 520, so that the second connecting section 520 is relatively backward, and the other end of the second connecting section 520 can extend from the rear side of the seat 300 to the upper side of the seat 300 after being bent upward, and is connected to the backrest 410.

Further, the second connecting section 520 is curved in an arc shape, so that the curved transition is smoother, and the damage to the connecting strip 500 when the connecting strip 500 is bent is reduced. Meanwhile, the arc structure can strengthen the toughness of the connection bar 500, and when the user leans back on the chair back 400 or the two hands are respectively put on the two supporting parts 420, the connection bar 500 can provide a greater supporting force, so that the connection bar 500 is not easy to deform.

In some embodiments, a slot is provided at the bottom of the backrest portion 410, and the end of the second connecting section 520 bent upwards is inserted into the slot, so that the backrest portion 410 is not easily separated from the second connecting section 520, so as to enhance the connection strength between the backrest portion 410 and the second connecting section 520.

In some embodiments, the backrest portion 410 and the two support portions 420 may be integrally connected to facilitate the overall manufacturing and shaping, and the surface of the backrest 400 may be covered with a skin layer to protect the backrest 400.

In some embodiments, as shown in fig. 9, a protruding enclosure portion 310 is provided on the rear side of the top surface of the seat 300, a protruding protrusion portion 320 is provided on the front side of the top surface of the seat 300, and the front side of the enclosure portion 310 is in a concave arc shape, so that an arc-shaped groove 330 is formed between the enclosure portion 310 and the protrusion portion 320, the shape is adapted to the shape of the buttocks of a human body, and a user sits on the position where the groove 330 is located. Meanwhile, the bulge 320 plays a limiting role, a human body is not easy to move forward on the seat 300, the legs of the user are respectively arranged at two sides of the bulge 320, the human body can be limited to move leftwards or rightwards on the seat 300, and the fence 310 plays a limiting role from the rear side, so that the human body is not easy to slide on the seat 300, and the comfort of sitting on the seat 300 is further improved.

Further, the width of the enclosure part 310 is greater than the width of the raised part 320, and when the legs of the user are placed on two sides of the raised part 320, the distance between the legs is not too large, so that the legs of the user are not forced to be spread apart, and the comfort is ensured.

Further, the height of the enclosure part 310 is greater than the height of the bulge part 320, so that the height of the bulge part 320 is not too high, and the comfort is further ensured.

In some embodiments, as shown in fig. 1, the front side of the chair back 400 is provided with a concave arc shape, which is matched with the shape of the back of the human body, so that the comfort of the user leaning against the chair back 400 can be improved.

In some embodiments, as shown in fig. 1 and 2, the base assembly 100 includes a base 110 and a support bar 120, the support bar 120 may extend in a vertical direction, a bottom end of the support bar 120 is fixedly connected to the base 110, and a connection seat 200 is disposed at a top end of the support bar 120. The support bar 120 may simplify a support structure, and the base 110 may increase a contact area with the ground, thereby improving stability of the seat.

Further, a plurality of casters 101 are fixed to the bottom of the base 110 to facilitate the movement of the entire rotatable seat. The base 110 may include a plurality of connection rods, which may be radially distributed with respect to the support rod 120, where one end of the connection rod, which is close to the support rod 120, is fixedly connected with the support rod 120, and the other end is fixed with the caster 101.

In some embodiments, as shown in fig. 1 and 6, the bottom surface of the support base 600 is provided with a rotation hole 630, and the support bar 120 passes through the connection base 200 and is inserted into the rotation hole 630, and the rotation axes of the connection base 200 and the support base 600 are coaxially arranged with the support bar 120, and when the seat 300 rotates relative to the support bar 120, the support bar 120 rotates in the rotation hole 630. The support bar 120 can restrict the lateral movement of the support base 600 so that the connection base 200 and the support base 600 can stably maintain the rotational connection.

The terms and words used in the above description and claims are not limited to literal meanings but are only used by the applicant to enable a clear and consistent understanding of the utility model. Accordingly, it will be apparent to those skilled in the art that the foregoing description of the various embodiments of the utility model has been provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. A rotatable seat with a locking mechanism, characterized in that: the chair comprises a base assembly, a connecting seat, a supporting seat, a chair seat and a chair back, wherein the connecting seat is arranged at the top of the base assembly, and the chair back is fixedly connected with the connecting seat; the support seat is arranged at the bottom of the chair seat, is positioned above the connecting seat and is rotationally connected with the connecting seat, and the chair seat can rotate to a plurality of using positions relative to the chair back; the movable locking mechanism and the elastic mechanism which is connected with the locking mechanism and applies acting force to the locking mechanism are arranged on the supporting seat, and a plurality of matching mechanisms corresponding to the using positions are arranged on the connecting seat; when the chair seat rotates to any using position, the locking mechanism is in locking fit with the matching mechanism under the action of the acting force so as to limit the rotation of the chair seat relative to the chair back, or when the locking mechanism is subjected to the external force overcoming the acting force, the locking mechanism is separated from the matching mechanism so that the chair seat can rotate relative to the chair back.

2. The rotatable seat with locking mechanism of claim 1, wherein: the locking mechanism comprises a rotating rod and a locking rod connected with the rotating rod, the rotating rod is rotationally connected with the supporting seat, an annular groove is formed in the connecting seat, the rotation axes of the connecting seat and the supporting seat are coaxial with the axis of the annular groove, and the matching mechanism is a limiting groove arranged on the side wall of the annular groove; the locking rod is arranged in the annular groove, and the acting force exerted by the elastic mechanism enables the locking rod to move towards the side wall of the annular groove with the limit groove; when the locking rod is clamped into the limit groove, the locking mechanism is locked and matched with the matching mechanism, and when the locking rod moves out of the limit groove, the locking mechanism is separated from the matching mechanism.

3. The rotatable seat with locking mechanism of claim 2, wherein: the top surface of supporting seat is provided with the recess, dwang and elastic mechanism all set up in the recess, the diapire of recess is provided with the groove of wearing that runs through, the locking lever stretches out outside the supporting seat and can move in wearing the groove through wearing the groove.

4. A rotatable seat with a locking mechanism according to claim 3, wherein: the inner wall of the groove is provided with a slot penetrating through the surface of the supporting seat, one end of the rotating rod is rotationally connected with the supporting seat, and the other end of the rotating rod extends out of the supporting seat through the slot and can move in the slot.

5. The rotatable seat with locking mechanism of claim 2, wherein: the elastic mechanism comprises a spring, one end of the spring is connected with the supporting seat, and the other end of the spring is connected with the rotating rod.

6. The rotatable seat with locking mechanism of claim 1, wherein: the connecting seat is rotationally connected with the base assembly.

7. The rotatable seat with locking mechanism according to any one of claims 1-6, wherein: the chair back comprises a back rest part and two supporting parts, wherein the two supporting parts are respectively positioned at the left side and the right side of the back rest part and extend in a direction away from each other; the seat can rotate to two using positions relative to the chair back, when the seat rotates to the front side of the seat opposite to the chair back, the seat is in one using position, and when the seat rotates to the back side of the seat opposite to the chair back, the seat is in the other using position.

8. The rotatable seat with locking mechanism of claim 7, wherein: the chair further comprises a connecting strip, and two ends of the connecting strip are fixedly connected with the chair back and the connecting seat respectively.

9. The rotatable seat with locking mechanism of claim 8, wherein: the connecting strip comprises a first connecting section and a second connecting section, one end of the first connecting section is connected with the connecting seat, the other end of the first connecting section extends to the rear side of the seat and is connected with one end of the second connecting section, and the other end of the second connecting section is bent upwards and is connected with the back rest part.

10. The rotatable seat with locking mechanism according to any one of claims 1-6, wherein: the rear side of seat support top surface is provided with convex fender portion that encloses, the front side of seat support top surface is provided with convex bulge portion, enclose the front side of fender portion and personally submit the arc of indent.