Stay wire control switch and seat

Abstract

The invention discloses a stay wire control switch and a seat, the stay wire control switch comprises a casing, a control wrench, a control pipeline and an adjusting assembly, the control wrench is rotatably mounted on the casing, and the control wrench is provided with a first connecting part; the control pipeline comprises a line pipe and a pull line arranged in the line pipe in a sliding mode, and one end of the pull line is connected with the first connecting part. The adjusting assembly is provided with a second connecting part and a distance adjusting structure, the second connecting part is connected with the end, close to the first connecting part, of the wire pipe, and the distance adjusting structure is used for adjusting the distance between the second connecting part and the first connecting part. When a sliding clearance exists between the stay wire and the wire pipe, the initial distance between the second connecting part and the first connecting part is adjusted through the distance adjusting structure so as to adjust the relative initial position between the wire pipe and the stay wire and compensate the sliding clearance between the stay wire and the wire pipe, and therefore when the control wrench pulls the stay wire, the relative initial position between the stay wire and the wire pipe can be adjusted. Therefore, the stay wire can immediately feed back the pulling control to the function adjusting mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of cable control of seats, and in particular to a cable control switch and a seat. Background Art

[0002] Chairs are an indispensable piece of furniture for people to use for work or rest, and they play the role of bearing the weight of the human body. Existing chairs usually have functions of reclining adjustment, lifting and lowering of the seat or backrest, etc. Most of these functional adjustments are controlled by controlling the movement of the pull wire, and now the adjustable chairs are generally provided with a pull wire switch to realize the control of the pull wire. In practice, when the chair is assembled and over time, there will be a virtual position between the pull wire and the external wire tube, which will lead to the phenomenon of virtual position control when operating the pull wire control switch, and the sensitivity will be reduced, and even the corresponding functional adjustment mechanism cannot be controlled by pulling the pull wire. Summary of the invention The purpose of the present invention is to provide a pull-wire controlled switch and a seat to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0003] The technical solutions adopted to solve the above technical problems are: The present invention provides a pull-wire control switch, comprising: chassis; A control wrench is rotatably mounted on the housing, and the control wrench is provided with a first connecting portion eccentrically arranged with respect to a rotation center of the control wrench; A control pipeline, comprising a wire tube and a pull wire slidably arranged in the wire tube, wherein one end of the pull wire is connected to the first connecting portion; An adjustment component is arranged on the housing, and the adjustment component is provided with a second connection part and a spacing adjustment structure. The second connection part is connected to an end of the wire tube close to the first connection part, and the spacing adjustment structure is used to adjust the distance between the second connection part and the first connection part so that the wire tube is close to or away from the first connection part.

[0004] The beneficial effects of the present invention are: When in use, one end of the pull wire is connected to the first connecting part, and the other end is connected to the functional adjustment mechanism for adjusting the seat lifting or the seat back tilt angle. The first connecting part is driven to rotate by rotating the control wrench to pull the pull wire. At this time, the pull wire moves relative to the wire tube to realize the control of the functional adjustment mechanism. When there is a sliding virtual position between the pull wire and the wire tube, the initial distance between the second connecting part and the first connecting part is adjusted by the spacing adjustment structure to adjust the relative initial position between the wire tube and the pull wire to compensate for the sliding virtual position between the pull wire and the wire tube. When the control wrench pulls the pull wire, the pull wire can immediately feedback the pulling control to the functional adjustment mechanism, which can effectively avoid the failure of the pull wire control switch, extend the service life of the pull wire control switch, and realize independent adjustment.

[0005] As a further improvement of the above technical solution, the housing is provided with a control slot, the control wrench is provided in the control slot, the control wrench has a first rotation state and a second rotation state during rotation, the control wrench in the first rotation state covers the control slot; the control wrench in the second rotation state rotates out of the control slot to open the control slot, and a control opening is formed between the control wrench and the control slot; The adjustment component is arranged at the inner side of the control slot, the spacing adjustment structure is provided with an adjustment control part for controlling the second connection part to approach or move away from the first connection part, and the adjustment control part is arranged opposite to the control slot.

[0006] As a further improvement of the above technical solution, the spacing adjustment structure includes a rotating plate and an angle adjustment mechanism, one end of the rotating plate is rotatably connected to the casing, the second connecting portion is provided on the rotating plate, the second connecting portion is eccentrically arranged with respect to the rotation center of the rotating plate, and the angle adjustment mechanism is used to adjust the rotation angle of the rotating plate.

[0007] As a further improvement of the above technical solution, the housing is provided with a connecting seat; The angle adjustment mechanism includes an adjusting bolt and an elastic member, one end of the adjusting bolt is provided with a bolt head, the bolt head is the adjustment control part, the end of the rotating plate away from the rotation connection with the casing is provided with a connecting hole, the adjusting bolt is connected to the connecting seat after passing through the connecting hole, the connecting hole and the adjusting bolt are slidably matched, and the elastic member acts between the connecting seat and the rotating plate to keep the rotating plate in contact with the bolt head of the adjusting bolt.

[0008] As a further improvement of the above technical solution, the connecting seat is provided with a sliding groove, and the adjusting bolt is threadedly connected with a connecting nut after passing through the sliding groove. The side of the connecting seat facing away from the rotating plate is provided with a limiting groove arranged in the same direction as the sliding groove, and the connecting nut is clamped in the limiting groove, and the connecting nut is slidably arranged along the limiting groove.

[0009] As a further improvement of the above technical solution, the connecting hole is a tapered hole, and the inner diameter of the connecting hole is gradually increased from the bolt head to the other end of the adjusting bolt.

[0010] As a further improvement of the above technical solution, a rotating shaft is provided at one end of the rotating plate rotatably connected to the casing, a rotating countersunk hole is provided on the wall surface of the casing, and the spacing adjustment structure also includes a fixed cover, which is detachably mounted on the casing, one end of the rotating shaft is rotatably connected to the rotating countersunk hole, and the other end of the rotating shaft is rotatably connected to the fixed cover.

[0011] As a further improvement of the above technical solution, the second connection part is a clamping hole provided on the rotating plate, the outer periphery of the clamping hole is provided with a clamping groove, the wire tube is connected with a threaded clamp inserted into the clamping hole, the outer periphery of the threaded clamp is threadedly connected with a fine-adjusting nut, and the fine-adjusting nut is in contact with the side of the rotating plate facing away from the first connection part; The first connecting portion is a card slot arranged on the outer peripheral surface of the control wrench, and the card slot includes a card slot extending along the axial direction of the control wrench, a wire passing slot arranged in the same direction on the outer periphery of the card slot, and a positioning wire slot vertically connected to the card slot and the wire passing slot respectively, the positioning wire slot is arranged in the same direction as the card hole, the pull wire is provided with a clamping head, the clamping head is clamped in the card slot, and the pull wire is arranged in the positioning wire slot.

[0012] As a further improvement of the above technical solution, a locking mechanism is provided between the control wrench and the housing, and the locking mechanism is used to lock the control wrench in the first rotation state or the second rotation state.

[0013] In addition, the present invention also proposes a seat, including the pull-wire control switch, and also including a functional adjustment mechanism for adjusting the seat lifting or seat back tilt angle, and the end of the control pipeline away from the first connecting part is connected to the functional adjustment mechanism.

[0014] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments; Figure 1 This is an exploded view of an embodiment of the pull-wire control switch provided by the present invention; Figure 2 This is a top cross-sectional view of an embodiment of the pull-wire control switch provided by the present invention; Figure 3 This is a schematic diagram of the inner structure of an embodiment of the pull-wire control switch provided by the present invention; Figure 4 This is a structural schematic diagram of a pull-wire control switch provided by the present invention, in a state without a housing; Figure 5 This is a side view of a control wrench of a pull-wire control switch provided by the present invention in a first rotation state; Figure 6 This is a schematic diagram of the outer side of a control wrench of a pull-wire control switch provided by the present invention in a first rotation state; Figure 7 This is a side view of a control wrench of a pull-wire control switch provided by the present invention in a second rotation state; Figure 8 This is a schematic diagram of the outer side of a control wrench of a pull-wire control switch provided by the present invention in a second rotation state; Figure Number: Housing 100; mounting hole 110; fixing frame 120; first limiting groove 121; second limiting groove 122; control notch 130; control port 140; connecting seat 150; slide groove 151; limiting groove 152; rotating countersunk hole 160; Control wrench 200; rotating shaft 210; operating end 220; connecting end 230; first connecting portion 240; snap-in slot 241; wire slot 242; positioning wire slot 243; positioning bead 250; Control pipeline 300; wire tube 310; threaded clamp 311; fine-tuning nut 312; pull wire 320; The adjusting assembly 400 , the second connecting portion 410 , the engaging hole 411 , the engaging groove 412 , the rotating plate 420 , the connecting hole 421 , the rotating shaft 422 , the adjusting bolt 430 , the bolt head 431 , the elastic member 440 , the connecting nut 450 , and the fixing cover 460 . DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0018] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0021] Current adjustable seats are generally provided with a pull-wire switch to realize the control of the pull wire 320. In practice, when the seat is assembled and over time, a virtual position will be generated between the pull wire 320 and the external wire tube 310, resulting in a virtual position control phenomenon when operating the pull-wire control switch, reduced sensitivity, and even inability to control the corresponding functional adjustment mechanism by pulling the pull wire 320. Therefore, the present invention proposes a pull-wire control switch that can effectively solve the above problem.

[0022] like Figures 1 to 4 As shown, the pull-wire control switch of the present invention includes a housing 100 , a control wrench 200 , a control pipeline 300 and an adjustment assembly 400 .

[0023] The housing 100 of this embodiment is of panel type. During installation, the housing 100 is directly covered on the bottom or back of the seat. A plurality of mounting holes 110 are evenly distributed on the edge of the housing 100. During assembly, the housing 100 is fixedly installed by fixing screws. In some other embodiments, the housing 100 may be of other structures.

[0024] The control wrench 200 of this embodiment is rotatably mounted on the housing 100. Figure 1 and Figure 3As shown, the control wrench 200 of this embodiment is provided with a rotating shaft 210. In this embodiment, the rotating shaft 210 is set to extend in the left-right direction. In some other embodiments, the rotating shaft 210 may extend in other directions. The control wrench 200 is rotatably connected to the housing 100 through the rotating shaft 210. In this embodiment, two fixed frames 120 are arranged opposite to each other along the left and right sides on the housing 100, and the two ends of the rotating shaft 210 are rotatably connected to the two fixed frames 120 respectively.

[0025] Specifically, two ends of the control wrench 200 along the front-rear direction are respectively an operating end 220 and a connecting end 230 . The rotating shaft 210 is disposed at the connecting end 230 . When in use, the entire control wrench 200 is driven to rotate through the operating end 220 .

[0026] The control wrench 200 of this embodiment is provided with a first connection portion 240 eccentrically arranged with respect to the rotation center of the control wrench 200. The first connection portion 240 of this embodiment is arranged on the outer peripheral side of the control wrench 200. Specifically, the first connection portion 240 is arranged on the outer peripheral side of the connection end 230. In this way, when manipulating the operating end 220 to drive the control wrench 200 to rotate, it can be more labor-saving.

[0027] like Figure 2 As shown, the control pipeline 300 includes a wire tube 310 and a pull wire 320 slidably arranged in the wire tube 310, one end of the pull wire 320 is connected to the first connecting part 240, and when in use, the other end is connected to a functional adjustment mechanism for adjusting the seat lifting or seat back tilt angle, wherein the wire tube 310 is used to protect and guide the pull wire 320.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, the adjustment component 400 is arranged on the housing 100, and the adjustment component 400 is provided with a second connection part 410 and a spacing adjustment structure. The first connection part 240 and the second connection part 410 of this embodiment are spaced apart in the front-to-back direction, and the second connection part 410 is connected to the end of the wire tube 310 close to the first connection part 240, so that the supporting points between the wire tube 310 and the pull wire 320 are separated. When the pull wire 320 is pulled, the second connection part 410 limits the wire tube 310, so that the pull wire 320 moves relative to the wire tube 310, so as to realize the control of the functional adjustment mechanism.

[0029] The spacing adjustment structure of this embodiment is used to adjust the distance between the second connection portion 410 and the first connection portion 240 , so that the wire tube 310 is close to or away from the first connection portion 240 .

[0030] When there is a sliding virtual position between the pull wire 320 and the wire tube 310, the initial distance between the second connecting part 410 and the first connecting part 240 is adjusted through the spacing adjustment structure to adjust the relative initial position between the wire tube 310 and the pull wire 320 to compensate for the sliding virtual position between the pull wire 320 and the wire tube 310. When the control wrench 200 pulls the pull wire 320, the pull wire 320 can immediately feedback the pulling control to the functional adjustment mechanism, which can effectively avoid the failure of the pull wire control switch, extend the service life of the pull wire control switch, and realize independent adjustment.

[0031] The two sides of the housing 100 of this embodiment are divided into an inner side and an outer side, and the control pipeline 300 and the adjustment component 400 are both arranged on the inner side of the housing 100. Figure 1 As shown, the housing 100 is provided with a control slot 130, and the control slot 130 passes through the inner side and the outer side of the housing 100. The connection end 230 of the control wrench 200 is arranged on the inner side of the control slot 130. The control wrench 200 of this embodiment is bent and arranged in the control slot 130. The control wrench 200 of this embodiment has a first rotation state and a second rotation state during the rotation process, as shown in FIG. Figure 5 and Figure 6 As shown, the control wrench 200 in the first rotation state covers the control slot 130, so that the shape and size of the control wrench 200 match the control slot 130; Figure 7 and Figure 8 As shown, the control wrench 200 in the second rotation state is rotated out of the control slot 130 to open the control slot 130 , and a control opening 140 is formed between the control wrench 200 and the control slot 130 .

[0032] It is understandable that when the control wrench 200 is rotated to the first rotation state, the control wrench 200 seals the control slot 130, and the control pipeline 300 and the adjustment assembly 400 are hidden at this time, and when the control wrench 200 is rotated to the second rotation state, the control wrench 200 is flipped outward to open the control slot 130.

[0033] The adjustment component 400 of the present embodiment is arranged on the inner side of the control slot 130, and the spacing adjustment structure is provided with an adjustment control part for controlling the second connection part 410 to approach or move away from the first connection part 240. When adjusting the relative initial position between the wire tube 310 and the pull wire 320, the adjustment is performed through the adjustment control part, and the adjustment control part of the present embodiment is arranged relative to the control port 140. When the control wrench 200 is rotated to the second rotation state, the control port 140 is formed. At this time, the adjustment control part can be operated accordingly through the control port 140. In this way, the relative initial position between the wire tube 310 and the pull wire 320 can be adjusted without affecting the overall appearance of the product, and the adjustment control part can be shielded by the control wrench 200 to avoid misoperation.

[0034] Furthermore, when adjusting the relative initial position between the wire tube 310 and the pull wire 320, there is no need to disassemble the entire pull wire control switch, so the adjustment is convenient.

[0035] Furthermore, the spacing adjustment structure of the present embodiment includes a rotating plate 420 and an angle adjustment mechanism, the rotating plate 420 extends in the left-right direction, one end of the rotating plate 420 is rotatably connected to the housing 100, the second connecting portion 410 is disposed on the rotating plate 420, the rotating plate 420 rotates around a vertical axis, and the second connecting portion 410 is eccentrically disposed with respect to the rotation center of the rotating plate 420, and the angle adjustment mechanism is used to adjust the rotation angle of the rotating plate 420.

[0036] In this embodiment, the rotation angle of the rotating plate 420 is adjusted by the angle adjustment mechanism to drive the second connection part 410 to swing in the front-back direction, thereby adjusting the initial distance between the second connection part 410 and the first connection part 240 .

[0037] like Figures 1 to 3 As shown, in this embodiment, a connecting seat 150 is provided at the rear end of the inner side of the housing 100, and the angle adjustment mechanism includes an adjusting bolt 430 and an elastic member 440. The adjusting bolt 430 extends in the front-to-back direction, and a bolt head 431 is provided at the front end of the adjusting bolt 430. The bolt head 431 of this embodiment is an adjustment control part, and a connecting hole 421 is provided at the end of the rotating plate 420 away from the rotation connection with the housing 100. The adjusting bolt 430 passes through the connecting hole 421 from front to back and is connected to the connecting seat 150. The connecting hole 421 and the adjusting bolt 430 are slidably matched. The elastic member 440 acts between the connecting seat 150 and the rotating plate 420 to keep the rotating plate 420 in contact with the bolt head 431 of the adjusting bolt 430. The elastic member 440 of this embodiment is a spring, and the spring is sleeved on the outer periphery of the adjusting bolt 430.

[0038] In a natural state, the elastic force of the elastic member 440 causes the rotating plate 420 to rotate forward, so that the rotating plate 420 abuts against the bolt head 431 of the adjusting bolt 430. When the rotating angle of the rotating plate 420 needs to be adjusted, the adjusting bolt 430 is driven to rotate by manipulating the bolt head 431 to adjust the distance between the bolt head 431 and the connecting seat 150, thereby driving the rotating plate 420 to rotate, so as to change the angle of the rotating plate 420 in a natural state, so as to adjust the initial distance between the second connecting portion 410 and the first connecting portion 240.

[0039] When the adjusting bolt 430 is screwed, the control wrench 200 is rotated to the second rotation state, the control wrench 200 is flipped outward, the control slot 130 is opened, and the screwdriver is inserted into the control opening 140 and docked with the bolt head 431 to screw the adjusting bolt 430.

[0040] Furthermore, the connection seat 150 of the present embodiment is provided with a slide groove 151, and the slide groove 151 extends in the left-right direction. The adjusting bolt 430 passes through the slide groove 151 from front to back and is threadedly connected with a connecting nut 450, and the side of the connection seat 150 facing away from the rotating plate 420 is provided with a limiting groove 152 arranged in the same direction as the slide groove 151, and the connecting nut 450 is clamped in the limiting groove 152, and the connecting nut 450 is slidably arranged along the limiting groove 152. The adjusting bolt 430 of the present embodiment is threadedly connected with the connecting nut 450, and the angle of the rotating plate 420 is adjusted by the bolt head 431 and the connecting nut 450. Limiting, under the elastic force of the elastic member 440, the bolt head 431 keeps in contact with the front side of the rotating plate 420, and the connecting nut 450 is in contact with the limiting groove 152. When the limiting groove 152 limits the rotation of the connecting nut 450, when the adjusting bolt 430 is turned, the bolt head 431 can be driven to move, and the connecting nut 450 of this embodiment slides along the limiting groove 152. When the rotating plate 420 rotates, the adjusting bolt 430 will be driven to tilt in the front and rear direction. At this time, the connecting nut 450 will move in the limiting groove 152 along the left and right direction, and will not affect the rotation of the rotating plate 420.

[0041] At the same time, in order to reduce the interference with the rotation of the rotating plate 420, as Figure 2 As shown, the connecting hole 421 is a tapered hole, and the inner diameter of the connecting hole 421 is gradually increased from the bolt head 431 to the other end of the adjusting bolt 430, so that the adjusting bolt 430 is easier to tilt and swing. When the rotation angle of the rotating plate 420 is adjusted, the adjusting bolt 430 can smoothly follow the tilt.

[0042] For ease of assembly, Figures 1 to 4As shown, a rotating shaft 422 is provided at one end of the rotating plate 420 rotatably connected to the casing 100 of the present embodiment, and the rotating shaft 422 extends in the up-down direction. A rotating countersunk hole 160 is provided on the inner wall surface of the casing 100, and the spacing adjustment structure also includes a fixed cover 460, which is detachably mounted on the casing 100, one end of the rotating shaft 422 is rotatably connected to the rotating countersunk hole 160, and the other end of the rotating shaft 422 is rotatably connected to the fixed cover 460. The fixed cover 460 of the present embodiment is fixedly mounted on the inner side of the casing 100 by screws. The rotating shaft 422 of the present embodiment is integrally formed with the rotating plate 420. It can be understood that when assembling the rotating plate 420, one end of the rotating shaft 422 is inserted into the rotating countersunk hole 160, and then the fixed cover 460 is covered on the inner side of the casing 100. At this time, the fixed cover 460 covers the other end of the rotating shaft 422 and is fixed by screws.

[0043] like Figure 3 As shown, the second connection portion 410 of this embodiment is a clamping hole 411 provided on the rotating plate 420, and a clamping groove 412 is provided on the periphery of the clamping hole 411 so that the clamping hole 411 has an elastic clamping function. The clamping hole 411 extends through along the front-to-back direction. Figure 2 As shown, the wire tube 310 is connected to a threaded clamp 311 inserted into the clamping hole 411, and the clamping hole 411 has a clamping effect on the threaded clamp 311, and a fine-tuning nut 312 is threadedly connected to the outer periphery of the threaded clamp 311, and the fine-tuning nut 312 abuts against the side of the rotating plate 420 facing away from the first connecting portion 240. In this embodiment, the wire tube 310 is fixed by the threaded clamp 311, and the wire tube 310 is limited by the abutment of the fine-tuning nut 312 with the rotating plate 420. When the pull wire 320 is pulled, the wire tube 310 can be limited so that the pull wire 320 can move forward relative to the wire tube 310.

[0044] During installation and debugging, the fine-tuning nut 312 can be rotated to adjust the initial position of the wire tube 310 .

[0045] like Figure 4As shown, the first connecting portion 240 of the present embodiment is a card slot provided on the outer peripheral surface of the control wrench 200, wherein the card slot includes a card slot 241 extending along the axial direction of the control wrench 200, a wire groove 242 provided on the outer periphery of the card slot 241 in the same direction, and a positioning wire groove 243 vertically connected to the card slot 241 and the wire groove, respectively, and the positioning wire groove 243 is in the same direction as the card hole 411. It can be understood that the card slot 241 and the wire groove 242 extend in the left and right directions respectively, and the positioning wire groove 243 extends in the front-to-back direction, and a clamping head (not shown in the figure) is provided at the end of the pull wire 320. When installing the pull wire 320, the clamping head is inserted into the clamping groove 241. At this time, the pull wire 320 also moves along the wire groove 242, and then the pull wire 320 is turned to the positioning wire groove 243. At this time, the clamping head is limited in the clamping groove 241. Under the limiting action of the pull wire 320 and the positioning wire groove 243, the clamping head is positioned to realize the connection and fixation between the pull wire 320 and the control wrench 200.

[0046] In this embodiment, a locking mechanism is provided between the control wrench 200 and the housing 100, and the locking mechanism is used to lock the control wrench 200 in the first rotation state or the second rotation state. Specifically, Figures 1 to 4 As shown, the locking mechanism of this embodiment includes positioning beads 250 arranged on the left and right sides of the control wrench 200, and the inner sides of the two fixing frames 120 are provided with a first limiting groove 121 and a second limiting groove 122, wherein the positioning beads 250 are engaged with the first limiting groove 121 or the second limiting groove 122 to achieve locking of the control wrench 200 in the first rotation state and the second rotation state.

[0047] In addition, the present invention also proposes a seat, including a pull-wire control switch, and also including a functional adjustment mechanism for adjusting the seat lifting or seat back tilt angle. The end of the control pipeline 300 away from the first connection part 240 is connected to the functional adjustment mechanism, and the pull wire 320 is pulled by rotating the control wrench 200 to achieve control of the functional adjustment mechanism.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A pull-wire control switch, characterized in that: include: chassis; A control wrench is rotatably mounted on the housing, and the control wrench is provided with a first connecting portion eccentrically arranged with respect to a rotation center of the control wrench; A control pipeline, comprising a wire tube and a pull wire slidably arranged in the wire tube, wherein one end of the pull wire is connected to the first connecting portion; An adjustment component is arranged on the housing, and the adjustment component is provided with a second connection part and a spacing adjustment structure. The second connection part is connected to an end of the wire tube close to the first connection part, and the spacing adjustment structure is used to adjust the distance between the second connection part and the first connection part so that the wire tube is close to or away from the first connection part.

2. The pull-wire control switch according to claim 1, characterized in that: The housing is provided with a control slot, the control wrench is provided in the control slot, and the control wrench has a first rotation state and a second rotation state during rotation, the control wrench in the first rotation state covers the control slot; the control wrench in the second rotation state rotates out of the control slot to open the control slot, and a control opening is formed between the control wrench and the control slot; The adjustment component is arranged at the inner side of the control slot, the spacing adjustment structure is provided with an adjustment control part for controlling the second connection part to approach or move away from the first connection part, and the adjustment control part is arranged opposite to the control slot.

3. The pull-wire control switch according to claim 2, characterized in that: The spacing adjustment structure includes a rotating plate and an angle adjustment mechanism, one end of the rotating plate is rotatably connected to the housing, the second connection portion is provided on the rotating plate, the second connection portion is eccentrically arranged with respect to the rotation center of the rotating plate, and the angle adjustment mechanism is used to adjust the rotation angle of the rotating plate.

4. The pull-wire control switch according to claim 3, characterized in that: The housing is provided with a connecting seat; The angle adjustment mechanism includes an adjusting bolt and an elastic member, one end of the adjusting bolt is provided with a bolt head, the bolt head is the adjustment control part, the end of the rotating plate away from the rotation connection with the casing is provided with a connecting hole, the adjusting bolt is connected to the connecting seat after passing through the connecting hole, the connecting hole and the adjusting bolt are slidably matched, and the elastic member acts between the connecting seat and the rotating plate to keep the rotating plate in contact with the bolt head of the adjusting bolt.

5. The pull-wire control switch according to claim 4, characterized in that: The connecting seat is provided with a sliding groove, and the adjusting bolt is threadedly connected with a connecting nut after passing through the sliding groove. The side of the connecting seat facing away from the rotating plate is provided with a limiting groove arranged in the same direction as the sliding groove, and the connecting nut is clamped in the limiting groove, and the connecting nut is slidably arranged along the limiting groove.

6. The pull-wire control switch according to claim 5, characterized in that: The connecting hole is a tapered hole, and the inner diameter of the connecting hole is gradually increased from the bolt head to the other end of the adjusting bolt.

7. The pull-wire control switch according to claim 3, characterized in that: A rotating shaft is provided at one end of the rotating plate rotatably connected to the casing, a rotating countersunk hole is provided on the wall surface of the casing, and the spacing adjustment structure also includes a fixed cover, which is detachably mounted on the casing, one end of the rotating shaft is rotatably connected to the rotating countersunk hole, and the other end of the rotating shaft is rotatably connected to the fixed cover.

8. The pull-wire control switch according to claim 3, characterized in that: The second connection part is a clamping hole provided on the rotating plate, the outer periphery of the clamping hole is provided with a clamping groove, the wire tube is connected with a threaded clamp inserted into the clamping hole, the outer periphery of the threaded clamp is threadedly connected with a fine-adjusting nut, and the fine-adjusting nut is in contact with the side of the rotating plate facing away from the first connection part; The first connecting portion is a card slot arranged on the outer peripheral surface of the control wrench, and the card slot includes a card slot extending along the axial direction of the control wrench, a wire passing slot arranged in the same direction on the outer periphery of the card slot, and a positioning wire slot vertically connected to the card slot and the wire passing slot respectively, the positioning wire slot is arranged in the same direction as the card hole, the pull wire is provided with a clamping head, the clamping head is clamped in the card slot, and the pull wire is arranged in the positioning wire slot.

9. The pull-wire control switch according to claim 2, characterized in that: A locking mechanism is provided between the control wrench and the housing, and the locking mechanism is used to lock the control wrench in the first rotation state or the second rotation state.

10. A seat, characterized in that: It comprises a pull-wire controlled switch as described in any one of claims 1 to 9, and also comprises a functional adjustment mechanism for adjusting the lifting and lowering of the seat or the tilting angle of the seat back, and the end of the control pipeline away from the first connecting part is connected to the functional adjustment mechanism.

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