Multi-switch synchronous lifting mechanism and seat

Abstract

The utility model relates to the field of furniture, in particular to a multi-switch synchronous lifting mechanism and a seat, which comprise a base, a support cylinder, a movable cylinder, a pneumatic lifting piece, a rotating piece and a traction line, a hinge part is arranged on the rotating piece, the rotating piece is hinged to the movable cylinder through the hinge part, a shifting piece is arranged on the rotating piece, the rotating piece is connected with the traction line, the other end of the traction line is connected with a line pulling part, and the line pulling part is used for pulling the traction line and is arranged on the chair seat or the armrest; a contact part is arranged on the rotating piece, located on the side, away from the shifting piece, of the hinge part and used for abutting against the air valve. Aiming at the technical problem that a traditional seat has use defects, the rotating piece can be respectively driven to rotate through the shifting piece and the pull wire part, the effect that the lifting mechanism is respectively controlled by the switches at multiple positions is achieved, the pull wire part is arranged on the seat or the armrest, so that an operator can adjust the height at different positions, and the safety of the operator is improved. And the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a multi-switch synchronous lifting mechanism and a seat. Background Art

[0002] At present, some pneumatic lift chairs on the market control the lifting of the seat through a switch at the top of the chair pole, but this type of lift chair still has some defects, such as: the passenger cannot touch the switch when sitting on the seat, making it inconvenient to perform the lifting and adjusting operation. Also, because the adjustment switch is located at the top of the chair pole, which is too high for children, it is not convenient for children to operate the seat lifting and lowering. Utility Model Content

[0003] In response to the technical problem of defects in the use of traditional seats, the utility model provides a multi-switch synchronous lifting mechanism and a seat, which can respectively drive the rotating part to rotate through the paddle and the pull wire part, so as to achieve the effect of multiple switches separately controlling the lifting mechanism, wherein the pull wire part is arranged on the seat or the armrest, and the pulling wire is used to connect the rotating part and the pull wire part, so that the operator can adjust the height at different positions, thereby improving the convenience of use.

[0004] The technical solution provided by the utility model is: a multi-switch synchronous lifting mechanism, including a base, a supporting cylinder, a movable cylinder, a pneumatic lifting member, a rotating member and a pulling wire; one end of the supporting cylinder is fixedly arranged on the base, the movable cylinder is sleeved on the outside of the supporting cylinder, the pneumatic lifting member is fixedly arranged in the supporting cylinder, the output rod of the pneumatic lifting member is fixedly connected to the movable cylinder, and an air valve is arranged at its end; a hinge part is arranged on the rotating member, the rotating member is hinged to the end of the movable cylinder away from the base through the hinge part, a paddle is fixedly arranged on the side of the rotating member deviating from the hinge part, the other side of the rotating member deviating from the hinge part is connected with one end of the pulling wire, the other end of the pulling wire is connected with the pulling wire part, the pulling wire part is used to pull the pulling wire and is arranged on the seat or the armrest; a contact part is arranged on the rotating member, the contact part is located on the side of the hinge part away from the paddle, and the contact part is used to abut against the air valve.

[0005] Optionally, the wire pulling part includes a connecting seat and a turning handle, the connecting seat is fixedly connected to the seat or armrest, the turning handle is rotatably connected to the connecting seat, and the side of the turning handle deviating from its rotation center is fixedly connected to the pulling wire.

[0006] Optionally, a first connecting hole is provided at one end of the rotating member, a connecting block is fixedly provided at one end of the pulling wire, and the first connecting hole is plug-fitted with the connecting block.

[0007] Optionally, a second connection hole is provided on the rotating member adjacent to the first connection hole, and the second connection hole is used for plugging and cooperating with the connection block; the distance between the second connection hole and the hinge part is smaller than the distance between the first connection hole and the hinge part.

[0008] Optionally, a first assembly block and a second assembly block are provided on the side of the rotating member facing the pull wire, there is a gap between the first assembly block and the second assembly block, the pull wire passes through the gap, and the first connecting hole and the second connecting hole are provided on the first assembly block; the second assembly block is provided with a first card slot and a second card slot, and the first card slot and the second card slot are used to abut against the side of the connecting block facing the base.

[0009] Optionally, a first wire passing groove is provided on the support tube, and a second wire passing groove is provided on the movable tube. The first wire passing groove and the second wire passing groove are connected, and the pulling wire passes through the first wire passing groove and the second wire passing groove and goes out of the movable tube.

[0010] Optionally, at least a portion of the puller wire is covered with a wire tube.

[0011] Optionally, a handle is fixedly provided on one end of the movable cylinder away from the base.

[0012] A chair comprises the above-mentioned multi-switch synchronous lifting mechanism, wherein the movable cylinder is fixedly connected to the chair seat, and the pull wire part is fixedly connected to the chair seat or the armrest.

[0013] Beneficial Effects

[0014] The technical solution provided by the utility model has the following beneficial effects compared with the prior art: in order to solve the technical problem of defects in the use of traditional seats, the utility model can respectively drive the rotating part to rotate through the paddle and the pull wire part, so as to achieve the effect of controlling the lifting mechanism separately by multiple switches, wherein the pull wire part is arranged on the seat or the armrest, and the pulling wire is used to connect the rotating part and the pull wire part, so that the operator can adjust the height at different positions, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a multi-switch synchronous lifting mechanism proposed in an embodiment of the utility model.

[0016] Figure 2 This is a schematic cross-sectional structural diagram of a multi-switch synchronous lifting mechanism proposed in an embodiment of the utility model.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0018] Figure 4 This is a schematic diagram of the structural assembly of the rotating member and the pulling wire proposed in an embodiment of the utility model.

[0019] Figure 5 This is a schematic structural diagram of a chair seat connector according to an embodiment of the present invention.

[0020] Figure 6 This is a schematic structural diagram of a seat proposed in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0022] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0023] Example 1

[0024] Combined with Figure 1-5The present embodiment proposes a multi-switch synchronous lifting mechanism, including a base 10, a support tube 20, a movable tube 30, a pneumatic lifting member 40, a rotating member 50 and a pulling wire 60; one end of the support tube 20 is fixedly arranged on the base 10, the movable tube 30 is sleeved on the outside of the support tube 20, the pneumatic lifting member 40 is fixedly arranged in the support tube 20, and the output rod 401 of the pneumatic lifting member 40 is fixedly connected to the movable tube 30, and an air valve 402 is arranged at its end.

[0025] A hinge part 501 is provided on the rotating member 50, and the rotating member 50 is hinged to the end of the movable cylinder 30 away from the base 10 through the hinge part 501. A paddle 70 is fixedly provided on the side of the rotating member 50 deviating from the hinge part 501, and the other side of the rotating member 50 deviating from the hinge part 501 is connected to one end of the pull wire 60, and the other end of the pull wire 60 is connected to the pulling wire part 80. The pulling wire part 80 is used to pull the pulling wire 60 and is provided on the seat or the armrest.

[0026] The rotating member 50 is provided with a contact portion 502 . The contact portion 502 is located at a side of the hinge portion 501 away from the paddle 70 . The contact portion 502 is used to abut against the air valve 402 .

[0027] The multi-switch synchronization mechanism of this embodiment is used for adjusting the height of the seat on the chair. The rotating member 50 can be driven to rotate by the paddle 70 and the pull wire portion 80 respectively, wherein the pull wire portion 80 is arranged on the seat or the armrest, and the pulling wire 60 is used to connect the rotating member 50 and the pull wire portion 80, so that the operator can adjust the height at different positions, thereby improving the convenience of use.

[0028] For some lifting seats that use a starter lifting member, when the seat needs to be raised and lowered, it is actually adjusted by controlling the conduction of the air valve 402 of the pneumatic lifting member 40. The pneumatic lifting member 40 is a gas spring commonly used in lifting seats, and the working principle of the gas spring is not repeated here. For the multi-switch synchronization mechanism of this embodiment, it can be implemented through two operating methods, and its working principle is as follows: when the air valve 402 of the pneumatic lifting member 40 is opened by the paddle 70, the paddle 70 is firstly paddled, and the paddle 70 drives the rotating member 50 to rotate with the hinge 501 as the rotation center. Among them, the hinge 501 is a structure for realizing the rotation connection between the rotating member 50 and the movable cylinder 30. Taking the structure of realizing rotation by the shaft hole as an example, the hinge 501 can be a raised shaft member, and the shaft member cooperates with the hole position of the movable cylinder 30 to realize the rotation connection; or the hinge 501 is a hole position, and the hole position cooperates with the shaft member of the movable cylinder 30 to realize the rotation connection.

[0029] As the rotating member 50 rotates, the contact portion 502 abuts against the gas valve 402 and presses down the gas valve 402, so that the gas valve 402 is turned on and the gas inside the gas spring can flow. At this time, if no external force is applied, the gas spring will automatically reset, that is, the output rod 401 of the pneumatic lifting member 40 will return to its original position, and the movable cylinder 30 connected to the output rod 401 will be driven to reset, and the seat connected to the movable cylinder 30 will also reset accordingly. When an external force is applied, the external force is transmitted to the output rod 401 through the movable cylinder 30, and the external force can control the extension and contraction amount of the output rod 401, thereby achieving seat height adjustment.

[0030] The contact portion 502 in this embodiment can be understood as the portion of the rotating member 50 that is used to abut against the air valve 402, that is, it can be a contact surface for abutment, or a groove, a protrusion, etc. that is adapted to the end surface of the air valve 402.

[0031] When the air valve 402 of the pneumatic lifting member 40 is opened by the wire pulling portion 80, the wire pulling portion 80 is first pulled, the pulling wire 60 is stressed and pulls one end of the rotating member 50, and the rotating member 50 rotates with the hinge portion 501 as the rotation center. The subsequent process is consistent with the above situation. As the rotating member 50 rotates, the contact portion 502 abuts against the air valve 402 and presses down the air valve 402, so that the air valve 402 is turned on, and the gas inside the gas spring can circulate, thereby realizing the seat height adjustment.

[0032] Therefore, in this embodiment, the pull wire portion 80 and the paddle 70 form two adjustment switches, and both switches can act on the rotating member 50 to open the air valve 402 of the pneumatic lifting member 40, thereby achieving the lifting and lowering adjustment of the seat.

[0033] The pull wire 60 in this embodiment can be made of polyester fiber, Kevlar fiber, nylon, etc., or can be a metal wire such as steel wire. In addition, in an optional embodiment, at least part of the pull wire 60 is covered with a wire tube 602 to protect the pull wire 60 and prevent wear.

[0034] And, in this embodiment, the pull wire portion 80 is a pull ring or a pull handle, etc., which is convenient for the user to pull the pull wire 60. Figure 2 In a preferred embodiment, the wire pulling part 80 includes a connection seat 801 and a turning handle 802. The connection seat 801 is fixedly connected to the seat or the armrest, and the turning handle 802 is rotatably connected to the connection seat 801. The side of the turning handle 802 deviating from its rotation center is fixedly connected to the pulling wire 60. In this embodiment, the connection seat 801 can be installed on the seat or the armrest. The operator can pull the pulling wire 60 by turning the turning handle 802 located at the bottom of the seat, the side of the seat or the armrest to drive the rotating member 50 to rotate, so that the contact part 502 presses the air valve 402 to adjust the telescopic amount of the output rod 401 of the pneumatic lifting member 40, thereby facilitating the adjustment of the seat height.

[0035] Combined with Figure 3-4 In one embodiment, a first connection hole 511 is provided at one end of the rotating member 50, a connection block 601 is fixedly provided at one end of the pulling wire 60, and the first connection hole 511 is plugged and matched with the connection block 601. Thus, one end of the pulling wire 60 is fixedly connected through the plugging and matching of the connection block 601 and the first connection hole 511.

[0036] In a further embodiment, a second connection hole 512 is provided on the rotating member 50 adjacent to the first connection hole 511, and the second connection hole 512 is used for plugging and matching with the connection block 601; the distance between the second connection hole 512 and the hinge portion 501 is smaller than the distance between the first connection hole 511 and the hinge portion 501. In this embodiment, there are adjacently arranged first connection holes 511 and second connection holes 512 on the rotating member 50, and the second connection hole 512 is closer to the hinge portion 501. It can be understood that the connection between the connection block 601 and the first connection hole 511 has a different degree of tension of the pull wire 60 than the connection between the connection block 601 and the second connection hole 512. It is understandable that as the use time increases, the pull wire 60 is continuously pulled and gradually stretches. Therefore, through the setting of the second connecting hole 512, when the pull wire 60 is aged and stretched, the assembly of the connecting block 601 and the second connecting hole 512 can further adjust the tension of the pull wire 60, thereby ensuring that the pull wire 60 can meet the use requirements.

[0037] Combined with Figure 4 In a further embodiment, the rotating member 50 is provided with a first assembly block 521 and a second assembly block 522 on the side facing the pull wire 60, a gap 503 is provided between the first assembly block 521 and the second assembly block 522, and the pull wire 60 passes through the gap 503, and the first connection hole 511 and the second connection hole 512 are provided on the first assembly block 521; the second assembly block 522 is provided with a first clamping groove 531 and a second clamping groove 532, and the first clamping groove 531 and the second clamping groove 532 are used to abut against the side of the connection block 601 facing the base 10. In this embodiment, the first connection hole 511 and the first clamping groove 531 can be assembled with the connection block 601 together, or the second connection hole 512 and the second clamping groove 532 can be assembled with the connection block 601 together, and the pull wire 60 can extend through the gap 503, thereby ensuring the stability of the pull wire 60 when it is fixed by the connection block 601, and effectively avoiding the pull wire 60 from being loosened due to frequent use. Furthermore, the matching form of the groove and the hole can ensure that the connecting block 601 can be easily assembled and disassembled.

[0038] Combined with Figure 1In order to facilitate the lifting and lowering of the seat by pulling the movable cylinder 30, in other embodiments, a handle 302 is fixedly provided at one end of the movable cylinder 30 away from the base 10. Thus, the user can conveniently realize the lifting and lowering adjustment of the movable cylinder 30 by pulling the handle 302.

[0039] Example 2

[0040] Combined with Figure 1 , 2 and 5. A multi-switch synchronous lifting mechanism of this embodiment can be improved as follows compared with the technical solution of embodiment 1: a first wire groove 201 is provided on the support cylinder 20, and a second wire groove 301 is provided on the movable cylinder 30. The first wire groove 201 and the second wire groove 301 are connected, and the pulling wire 60 passes through the first wire groove 201 and the second wire groove 301 to go out of the movable cylinder 30.

[0041] In this embodiment, a first wire groove 201 and a second wire groove 301 are respectively provided on the support tube 20 and the movable tube 30 to ensure that the pulling wire 60 can be led out of the movable tube 30, thereby ensuring that it can be connected to the pulling wire part 80 located on the seat or the armrest.

[0042] Combined with Figure 2 and 5 In a further embodiment, a seat connector 90 for assembling a seat is provided on one side of the movable cylinder 30, and a first bracket 901 and a second bracket 902 are fixedly provided on the seat connector 90, the first bracket 901 passes through the first wire groove 201 and the second wire groove 301, and a wire hole 903 is provided on the first bracket 901, and the pulling wire 60 passes through the wire hole 903; a fastener 904 is provided at the end of the second bracket 902, and the second bracket 902 passes through the second wire groove 301 and is buckled with the inner wall of the movable cylinder 30 through the fastener 904.

[0043] In this embodiment, the seat connector 90 can realize the relative positioning between itself and the movable cylinder 30 through the fastener 904, so as to facilitate the fixed connection between itself and the movable cylinder 30, that is, the assembly of the fastener 904 and the second wire groove 301 ensures the accuracy of the assembly. In addition, in this embodiment, through the provision of the second bracket 902, the wire hole 903 on the second bracket 902 is further used to guide the pull wire 60, ensuring that the pull wire 60 can be accurately led out of the support cylinder 20. In addition, the provision of the seat connector 90 in this embodiment also plays a role in shielding the pull wire 60, thereby improving the aesthetics.

[0044] Example 3

[0045] Combined with Figure 1-6This embodiment proposes a chair, including the multi-switch synchronous lifting mechanism recorded in any one of the technical solutions of Examples 1-2. In the chair of this embodiment, the movable cylinder 30 is fixedly connected to the seat, and the pull wire part 80 is fixedly connected to the seat or the armrest.

[0046] Combined with the description of the aforementioned multi-switch synchronous lifting mechanism, the method of using the seat in this embodiment is as follows: when no one is sitting on the seat, the paddle 70 can be toggled, or the pull wire portion 80 can be manipulated to rotate the rotating member 50 directly or indirectly through the pull wire 60, so that the contact portion 502 of the rotating member 50 contacts the air valve 402, so that the air valve 402 is opened, and the output rod 401 of the pneumatic lifting member 40 will return to its original position, and the movable cylinder 30 connected to the output rod 401 will be driven to reset, and the seat connected to the movable cylinder 30 will also reset accordingly. Release the paddle 70 or the pull wire 60, the air valve 402 is closed, and the pneumatic lifting member 40 can maintain a self-locking state.

[0047] When someone is sitting on the seat, the paddle 70 is turned or the control line is pulled, the air valve 402 is opened, and pressure is applied to the seat. The output rod 401 of the pneumatic lifting member 40 is subjected to force through the movable cylinder 30, and the output rod 401 is compressed back. At this time, the height of the seat is lowered. After releasing the paddle 70 or pulling the line 60, the air valve 402 is closed, the pneumatic lifting member 40 remains in a self-locking state, and the seat height can be maintained at the adjusted height.

[0048] Therefore, the seat of this embodiment can be adjusted in height through the paddle 70 located at the top of the movable cylinder 30 and the pull wire portion 80 at the seat or armrest, achieving the effect of controlling the lifting and lowering by multiple switches respectively, thereby improving the convenience of use.

[0049] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A multi-switch synchronous lifting mechanism, characterized in that: It includes a base, a support tube, a movable tube, a pneumatic lifting member, a rotating member and a pulling wire; one end of the support tube is fixedly arranged on the base, the movable tube is sleeved on the outside of the support tube, the pneumatic lifting member is fixedly arranged in the support tube, the output rod of the pneumatic lifting member is fixedly connected to the movable tube, and an air valve is arranged at its end; The rotating member is provided with a hinged portion, the rotating member is hinged to one end of the movable cylinder away from the base through the hinged portion, a paddle is fixedly provided on one side of the rotating member deviating from the hinged portion, the other side of the rotating member deviating from the hinged portion is connected to one end of the pulling wire, the other end of the pulling wire is connected to the pulling wire portion, the pulling wire portion is used to pull the pulling wire and is provided on the seat or the armrest; The rotating member is provided with a contact portion, the contact portion is located at a side of the hinge portion away from the paddle, and the contact portion is used to abut against the air valve.

2. A multi-switch synchronous lifting mechanism according to claim 1, characterized in that: The wire pulling part comprises a connecting seat and a turning handle, wherein the connecting seat is fixedly connected to a chair seat or an armrest, the turning handle is rotatably connected to the connecting seat, and a side of the turning handle deviating from its rotation center is fixedly connected to the pulling wire.

3. A multi-switch synchronous lifting mechanism according to claim 1, characterized in that: A first connecting hole is provided at one end of the rotating member, a connecting block is fixedly provided at one end of the pulling wire, and the first connecting hole is plug-fitted with the connecting block.

4. A multi-switch synchronous lifting mechanism according to claim 3, characterized in that: A second connection hole is provided on the rotating member adjacent to the first connection hole, and the second connection hole is used for plugging and matching with the connection block; the distance between the second connection hole and the hinge part is smaller than the distance between the first connection hole and the hinge part.

5. A multi-switch synchronous lifting mechanism according to claim 4, characterized in that: A first assembly block and a second assembly block are provided on the side of the rotating member facing the pulling wire, a gap is provided between the first assembly block and the second assembly block, the pulling wire passes through the gap, and the first connecting hole and the second connecting hole are provided on the first assembly block; a first card slot and a second card slot are provided on the second assembly block, and the first card slot and the second card slot are used to abut against the side of the connecting block facing the base.

6. The multi-switch synchronous lifting mechanism according to claim 1, characterized in that: The support tube is provided with a first wire passing groove, and the movable tube is provided with a second wire passing groove. The first wire passing groove and the second wire passing groove are connected, and the pulling wire passes through the first wire passing groove and the second wire passing groove to go out of the movable tube.

7. A multi-switch synchronous lifting mechanism according to any one of claims 1 to 6, characterized in that: At least a portion of the puller wire is covered with a wire tube.

8. A multi-switch synchronous lifting mechanism according to any one of claims 1 to 6, characterized in that: A handle is fixedly provided on one end of the movable cylinder away from the base.

9. A seat, characterized in that: It comprises a multi-switch synchronous lifting mechanism as described in any one of claims 1 to 8, wherein the movable cylinder is fixedly connected to the seat, and the pull wire part is fixedly connected to the seat or the armrest.

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