Operating rod connecting mechanism and chair using same

Abstract

The utility model discloses an operating rod connecting mechanism and a chair using the same. The operating rod connecting mechanism comprises a base, a control structure and a handle, the control structure comprises a control rod movably arranged on the base; the control structure can control and adjust the state of the chair through the movement of the control rod; the handle is movably connected to the control rod and can drive the control rod to move, and the handle can move in the length direction of the control rod and move to be close to or away from the base. The movable handle not only ensures that the handle can extend outwards as much as possible during use and is convenient to use, but also enables the extension amount to be reduced when the handle is not used. By reducing the extension amount of the handle, the movement caused by accidental touch of the handle and wrong control and adjustment of the chair can be effectively avoided, so that more stable and reliable use experience can be brought to the chair.

Description

Technical Field

[0001] The utility model relates to the field of chairs, in particular to an operating rod connecting mechanism and a chair applying the same. Background Art

[0002] In chairs such as office chairs, there are often extended operating rods, which can be used to adjust the elastic force of the chair back. However, the extended operating rod is likely to cause a sudden change in the state of the chair due to accidental touch, and the occupant sitting on the chair may be frightened or injured. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an operating rod connecting mechanism, which can reduce or avoid the movement of the operating rod caused by accidental touch.

[0004] The utility model also provides a chair with the above-mentioned operating rod connecting mechanism.

[0005] The operating rod connecting mechanism according to the first aspect embodiment of the utility model includes: a base, a control structure and a handle; the control structure includes a control rod movably arranged on the base; the control structure can control and adjust the state of the chair through the movement of the control rod; the handle is movably connected to the control rod and can drive the control rod to move, and the handle can move along the length direction of the control rod and move the handle closer to or away from the base.

[0006] The operating rod connecting mechanism according to the embodiment of the utility model has at least the following beneficial effects: when the state of the chair needs to be adjusted, the handle can be driven to move away from the base first, so that the handle can extend out, and then it is convenient to drive the control rod to move through the handle, and the control structure can control and adjust the state of the chair. After the adjustment operation of the chair is completed, the handle can be moved along the length direction of the control rod closer to the base, so as to effectively reduce the total length of the control rod and the handle, and then achieve the effect of reducing the extension amount of the handle and the control rod.

[0007] The movable handle not only ensures that it can extend out as much as possible and is convenient to use during use, but also enables the extension amount of the handle to be reduced when it is not in use. By reducing the extension amount of the handle, the movement caused by accidental touch of the handle and the wrong control adjustment of the chair can be effectively avoided. Therefore, a more stable and reliable use experience can be brought to the chair, and the situation of the occupant being frightened and injured due to accidental changes of the chair can be avoided.

[0008] According to some embodiments of the present utility model, the control structure includes an elastic structure, a connecting member, and a supporting seat. The supporting seat is movably connected to the base; the elastic structure is disposed between the supporting seat and the connecting member and applies an elastic force therebetween; the control structure is connected to the supporting seat and can drive it to move closer to or away from the connecting member.

[0009] According to some embodiments of the present utility model, the elastic structure includes a mounting shaft and a torsion spring. The torsion spring is wound around the outer periphery of the mounting shaft; one end of the torsion spring is connected to the supporting seat, and the other end of the torsion spring is connected to the connecting member.

[0010] According to some embodiments of the present utility model, the supporting seat is provided with a screw portion, and the end of the screw portion is provided with a special-shaped portion; the control structure includes a special-shaped hole provided in the base, and the special-shaped portion is slidably mounted in the special-shaped hole; the control rod is threadedly connected to the screw portion.

[0011] According to some embodiments of the present utility model, the base is provided with a gear, the control rod is connected with a locking member, and the locking member is provided with engaging teeth; when the control rod rotates, it can drive the engaging teeth to move closer to and engage with the gear or drive the engaging teeth to move away from the gear.

[0012] According to some embodiments of the present utility model, there are two engaging teeth and they are respectively located on both sides of the gear. The locking member is connected with a pulling rope and a spring. Both the pulling rope and the spring can pull the locking member to rotate relative to the gear and their driving directions for the locking member are opposite.

[0013] According to some embodiments of the present utility model, the handle is rotatably mounted on the control rod and can drive the pulling rope to move through its rotation; one of the handle and the control rod is provided with a first positioning member, the other of the handle and the control rod is provided with a second positioning member, one of the first positioning member and the second positioning member is provided with a positioning block, the other of the first positioning member and the second positioning member is provided with a positioning slot, and the positioning block can be engaged in the positioning slot.

[0014] According to some embodiments of the present utility model, both the first positioning member and the second positioning member have inclined surfaces and they can abut against each other through the inclined surfaces; there are two positioning slots and they are respectively provided at both ends of the inclined surface.

[0015] According to some embodiments of the present utility model, both ends of one of the handle and the control rod are provided with clamping bosses, the other of the handle and the control rod is provided with a clamping groove, and the two clamping bosses can be selectively engaged in the clamping groove.

[0016] A chair according to a second aspect embodiment of the present utility model includes an operating rod connection mechanism according to the first aspect embodiment of the present utility model described above.

[0017] The chair according to the embodiment of the present utility model has at least the following beneficial effects: When the state of the chair needs to be adjusted, the handle can be first driven to move away from the base, so that the handle can extend out, and then it is convenient to drive the control rod to move through the handle, and the control structure can control and adjust the state of the chair. After the adjustment operation of the chair is completed, the handle can be moved along the length direction of the control rod close to the base, so as to effectively reduce the total length of the control rod and the handle, and then achieve the effect of reducing the extension amount of the handle and the control rod.

[0018] The movable handle not only ensures that it can extend out as much as possible and is convenient to use during use, but also enables the extension amount of the handle to be reduced when it is not in use. By reducing the extension amount of the handle, it is possible to effectively avoid the movement and incorrect control adjustment of the chair caused by the accidental touch of the handle. Therefore, a more stable and reliable use experience can be brought to the chair, and the situation of the rider being frightened and injured due to the accidental change of the chair can be avoided.

[0019] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0021] Figure 1 is a schematic diagram of the operating rod connection mechanism according to the embodiment of the present utility model;

[0022] Figure 2 is Figure 1 a schematic diagram showing the retracted state of the operating rod connection mechanism;

[0023] Figure 3 is Figure 1 a schematic diagram showing the disassembled state of the operating rod connection mechanism;

[0024] Figure 4 is Figure 1 a schematic diagram showing the control structure of the operating rod connection mechanism;

[0025] Figure 5 is Figure 1 a schematic diagram showing the handle and the control rod of the operating rod connection mechanism;

[0026] Figure 6For Figure 1 Schematic diagram of rotational positioning of the joystick connection mechanism shown;

[0027] Figure 7 For Figure 1 Schematic diagram of the cross-section inside the handle of the joystick connection mechanism shown;

[0028] Figure 8 Schematic diagram of the chassis of the chair of the embodiment of the present utility model;

[0029] Reference numerals: base 100; supporting seat 150; screw part 170; special-shaped part 180; control structure 200; gear 210; locking part 230; engaging teeth 233; spring 250; pull rope 270; special-shaped hole 280; elastic force structure 300; mounting shaft 330; torsion spring 350; control rod 500; positioning part 590; handle 600; clamping convex platform 650; first positioning part 710; second positioning part 720; clamping groove 725; positioning block 730; positioning slot 740; inclined surface 750; connecting part 900; Detailed description of the specific embodiment

[0030] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and 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 thus should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0033] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0034] Reference Figure 1 , a joystick connection mechanism, comprising: a base 100, a control structure 200 and a handle 600; the control structure 200 includes a control rod 500 movably disposed on the base 100; the control structure 200 can control and adjust the state of the chair through the movement of the control rod 500; the handle 600 is movably connected to the control rod 500 and can drive the control rod 500 to move, and the handle 600 can move along the length direction of the control rod 500 and move the handle 600 closer to or away from the base 100. When the state of the chair needs to be adjusted, the handle 600 can be first driven to move away from the machine base, so that the handle 600 can be extended, and then it is convenient to drive the control rod 500 to move through the handle 600, and the control structure 200 can control and adjust the state of the chair. After the adjustment operation of the chair is completed, the handle 600 can be moved along the length direction of the control rod 500 closer to the base 100, so as to effectively reduce the overall length of the control rod 500 and the handle 600, and then achieve the effect of reducing the extension amount of the handle 600 and the control rod 500. The movable handle 600 not only ensures that it can be extended as much as possible and is convenient to use during use, but also enables the extension amount of the handle 600 to be reduced when it is not in use. By reducing the extension amount of the handle 600, it is possible to effectively avoid the movement and incorrect control adjustment of the chair caused by the accidental touch of the handle 600. Therefore, a more stable and reliable use experience can be brought to the chair, and the situation of the rider being frightened and injured due to the accidental change of the chair can be avoided.

[0035] Specifically, a positioning portion 590 is provided at one end of the control rod 500 close to the base 100, and the positioning portion 590 can abut against and block the sliding of the handle 600, so as to achieve the effect of preventing the handle 600 from moving excessively.

[0036] In some embodiments, reference Figure 2, the control structure 200 includes an elastic structure 300, a connecting member 900, and a supporting seat 150. The supporting seat 150 is movably connected to the base 100; the elastic structure 300 is disposed between the supporting seat 150 and the connecting member 900 and applies an elastic force therebetween; the control structure 200 is connected to the supporting seat 150 and can drive it to move closer to or away from the connecting member 900. The connecting member 900 can be connected to other parts of the chair, such as the backrest and other parts. When the elastic structure 300 applies an elastic force between the supporting seat 150 and the connecting member 900, an elastic support effect between the base 100 and the connecting member 900 can be achieved, so that components connected to the connecting member 900, such as the backrest, can elastically support the occupant. When the control structure 200 drives the supporting seat 150 and the connecting member 900 to move away from each other, the elastic structure 300 will cause a difference in the amount of expansion or contraction of the elastic component due to the change in the distance between the two. Therefore, the effect of adjusting the elastic force can be effectively achieved, and then the elastic support effect of components such as the backrest on the occupant can be adjusted, bringing a more comfortable sitting experience to the occupant.

[0037] It can be expected that the control structure 200 can also adjust other state parameters of the chair, such as the height and position of the seat cushion. The specific implementation can be adjusted according to actual needs and will not be limited here.

[0038] In some embodiments, referring to Figure 3 , the elastic structure 300 includes a mounting shaft 330 and a torsion spring 350. The torsion spring 350 is wound around the outer periphery of the mounting shaft 330; one end of the torsion spring 350 is connected to the supporting seat 150, and the other end of the torsion spring 350 is connected to the connecting member 900. The torsion spring 350 can directly and effectively apply an elastic force between the supporting seat 150 and the connecting member 900, so that the connecting member 900 can achieve an elastic support effect on the occupant through the elastic force of the torsion spring 350, thereby effectively improving the sitting experience of the occupant.

[0039] In some embodiments, referring to Figure 3 and Figure 4, the support base 150 is provided with a screw rod portion 170, and the end of the screw rod portion 170 is provided with a special-shaped portion 180; the control structure 200 includes a special-shaped hole 280 provided on the base 100, and the special-shaped portion 180 is slidably installed in the special-shaped hole 280; the control rod 500 is threadedly connected to the screw rod portion 170. The support base 150 is movably inserted into the special-shaped hole 280 through the special-shaped portion 180. Therefore, the support base 150 will not be driven to rotate by the control rod 500, but can only slide relative to the base 100. During the movement of the control rod 500, a screw thread fit will be generated with the screw thread portion. Since the screw thread portion cannot rotate under the action of the special-shaped portion 180, the screw thread portion will only slide relative to the base 100, so as to directly and effectively achieve the effect of adjusting the position of the support base 150, and further change the elastic force of the elastic structure 300.

[0040] Specifically, the special-shaped portion 180 is a hexagonal prism, and the special-shaped hole 280 is a hole position with a hexagonal cross-sectional shape. Of course, the special-shaped portion 180 and the special-shaped hole 280 can also be other shapes, as long as the effect of preventing the special-shaped portion 180 from rotating relative to the special-shaped hole 280 can be achieved. The specific implementation manner can be adjusted accordingly according to actual needs and will not be limited here.

[0041] In some embodiments, referring to Figure 4 , the base 100 is provided with a gear 210, the control rod 500 is connected with a locking member 230, and the locking member 230 is provided with a tooth 233; when the control rod 500 rotates, it can drive the tooth 233 to move close to and engage with the gear 210 or drive the tooth 233 to move away from the gear 210. During the rotation of the control rod 500, it will drive the tooth 233 to gradually move close to the gear 210 and finally engage with the gear 210. After the tooth 233 and the gear 210 are engaged, the control rod 500 will not be able to continue rotating relative to the base 100. Therefore, the problem of excessive rotation of the control rod 500 can be effectively avoided, and further ensure that the control rod 500 can accurately and reliably perform the adjustment operation.

[0042] In some embodiments, referring to Figure 4, there are two engaging teeth 233, which are respectively located on both sides of the gear 210. The locking member 230 is connected to a pulling rope 270 and a spring 250. Both the pulling rope 270 and the spring 250 can pull the locking member 230 to rotate relative to the gear 210, and their driving directions for the locking member 230 are opposite. The two engaging teeth 233 can respectively limit the forward and reverse rotational movements of the control rod 500. Moreover, when the control rod 500 moves to the extreme position under the action of the engaging teeth 233, the engagement relationship between the engaging teeth 233 and the gear 210 can also be released through the movement of the locking member 230, so that the control rod 500 can further move. Therefore, the control rod 500 can move in multiple amplitudes under the movement of the locking member 230, and thus it is convenient to use the control rod 500.

[0043] In some embodiments, referring to Figure 5 , the handle 600 is rotatably mounted on the control rod 500 and can drive the pulling rope 270 to move through its rotation; one of the handle 600 and the control rod 500 is provided with a first positioning member 710, and the other of the handle 600 and the control rod 500 is provided with a second positioning member 720. One of the first positioning member 710 and the second positioning member 720 is provided with a positioning block 730, and the other of the first positioning member 710 and the second positioning member 720 is provided with a positioning slot 740. The positioning block 730 can be engaged in the positioning slot 740. The first positioning member 710 and the second positioning member 720 can achieve the fixing effect of the rotation position of the handle 600 through the engagement effect of the positioning slot 740 and the positioning block 730, and fix the positional relationship of the pulling rope 270. Therefore, the positional relationship between the pulling rope 270 and the locking member 230 can be continuously fixed smoothly without the need for the rider to continuously apply force, thereby achieving the effects of labor saving and convenient use.

[0044] In some embodiments, referring to Figure 6 , both the first positioning member 710 and the second positioning member 720 have inclined surfaces 750 and they can abut against each other through the inclined surfaces 750; there are two positioning slots 740, which are respectively arranged at both ends of the inclined surface 750. When the inclined surfaces 750 are in contact with each other, through the oblique acting force of the inclined surfaces 750, the first positioning member 710 and the second positioning member 720 will gradually cooperate towards a predetermined orientation. Therefore, the positioning block 730 can accurately move to one of the two positioning slots 740, and the problem of positioning failure of the positioning block 730 will not easily occur.

[0045] In some embodiments, referring to Figure 7, one of the handle 600 and the control rod 500 is provided with a locking boss 650 at both ends, and the other of the handle 600 and the control rod 500 is provided with a locking groove 725, and the two locking bosses 650 can be selectively engaged in the locking groove 725. The handle 600 has two states: extended and retracted, and the two locking bosses 650 can be engaged with the locking groove 725 in these two states, respectively, so as to directly and effectively fix the two states.

[0046] Specifically, two locking bosses 650 are respectively disposed inside the two ends of the handle 600 .

[0047] Reference Figure 8 The second aspect of the utility model provides an embodiment of a chair, including the above-mentioned operating rod connection mechanism. When the state of the chair needs to be adjusted, the handle 600 can be first driven to move away from the base, so that the handle 600 can be extended, and then the control rod 500 can be driven to move by the handle 600, and the control structure 200 can achieve the effect of controlling and adjusting the state of the chair. After the adjustment operation of the chair is completed, the handle 600 can be moved along the length direction of the control rod 500 to approach the base 100, so as to effectively reduce the overall length of the control rod 500 and the handle 600, and then achieve the effect of reducing the extension of the handle 600 and the control rod 500. The movable handle 600 not only ensures that it can be extended as much as possible and is convenient to use when in use, but also reduces the extension of the handle 600 when it is not in use. By reducing the outward extension of the handle 600, the movement of the handle 600 caused by accidental touching and the incorrect control and adjustment of the chair can be effectively avoided, thereby providing a more stable and reliable use experience for the chair and avoiding the passengers from being frightened or injured due to unexpected changes in the chair.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

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

Claims

1. A joystick connection mechanism, characterized in that, Comprising: A base (100); A control structure (200), the control structure (200) includes a control lever (500) movably arranged on the base (100); the control structure (200) can control and adjust the state of the chair through the movement of the control lever (500); A handle (600), movably connected to the control lever (500) and capable of driving the control lever (500) to move, the handle (600) can move along the length direction of the control lever (500) and make the handle (600) move closer to or away from the base (100).

2. The operating lever connection mechanism according to claim 1, characterized in that: The control structure (200) includes an elastic structure (300), a connecting member (900) and a supporting seat (150), the supporting seat (150) is movably connected to the base (100); the elastic structure (300) is arranged between the supporting seat (150) and the connecting member (900) and applies an elastic force between the two; the control structure (200) is connected to the supporting seat (150) and can drive it to move closer to or away from the connecting member (900).

3. The operating lever connection mechanism according to claim 2, characterized in that: The elastic structure (300) includes a mounting shaft (330) and a torsion spring (350), the torsion spring (350) is wound around the outer periphery of the mounting shaft (330); one end of the torsion spring (350) is connected to the supporting seat (150), and the other end of the torsion spring (350) is connected to the connecting member (900).

4. The operating lever connection mechanism according to claim 2, characterized in that: The supporting seat (150) is provided with a screw portion (170), and the end of the screw portion (170) is provided with a special-shaped portion (180); the control structure (200) includes a special-shaped hole (280) arranged on the base (100), and the special-shaped portion (180) is slidably mounted in the special-shaped hole (280); the control lever (500) is threadedly connected to the screw portion (170).

5. The operating lever connection mechanism according to claim 4, characterized in that: The base (100) is provided with a gear (210), the control lever (500) is connected with a locking member (230), and the locking member (230) is provided with a locking tooth (233); when the control lever (500) rotates, it can drive the locking tooth (233) to move closer to and engage with the gear (210) or drive the locking tooth (233) to move away from the gear (210).

6. The operating lever connection mechanism according to claim 5, characterized in that: There are two locking teeth (233) and they are respectively located on both sides of the gear (210), the locking member (230) is connected with a pull rope (270) and a spring (250), both the pull rope (270) and the spring (250) can pull the locking member (230) to rotate relative to the gear (210) and their driving directions for the locking member (230) are opposite.

7. The operating lever connection mechanism according to claim 6, characterized in that: The handle (600) is rotatably mounted on the control lever (500) and can drive the movement of the pull rope (270) through its rotation; one of the handle (600) and the control lever (500) is provided with a first positioning member (710), and the other of the handle (600) and the control lever (500) is provided with a second positioning member (720); One of the first positioning member (710) and the second positioning member (720) is provided with a positioning block (730), and the other of the first positioning member (710) and the second positioning member (720) is provided with a positioning slot (740), and the positioning block (730) can be clamped in the positioning slot (740).

8. The operating lever connection mechanism according to claim 7, characterized in that: Both the first positioning member (710) and the second positioning member (720) have inclined surfaces (750) and can abut against each other through the inclined surfaces (750); there are two positioning slots (740) and they are respectively arranged at both ends of the inclined surface (750).

9. The operating lever connection mechanism according to claim 1, characterized in that: Both ends of one of the handle (600) and the control lever (500) are provided with clamping bosses (650), and the other of the handle (600) and the control lever (500) is provided with a clamping groove (725), and the two clamping bosses (650) can be selectively clamped in the clamping groove (725).

10. A chair, characterized in that, Including the operating lever connection mechanism according to any one of claims 1 to 9.

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