Traction mechanism, lifting chair and stretching chair

Abstract

The utility model belongs to the technical field of chair lifting or stretching control, and discloses a traction mechanism, a lifting chair and a stretching chair. One end of the traction piece is rotationally connected with the transfer connecting assembly; the traction rope body is provided with a rope sleeve, one end of the traction rope body is detachably connected with the middle of the traction piece, one end of the rope sleeve is detachably connected with the transfer connecting assembly, and one end of the traction piece rotates around the other end of the traction piece, so that the traction rope body and the rope sleeve move relatively; and the other end of the traction rope body is contracted. The charging assembly is integrated on the first end face of the shell, a user can control lifting or horizontal stretching through the traction piece, the charging assembly can be connected with a data line to charge mobile equipment, the functions are diversified, and various requirements of the user are met.

Description

Technical Field

[0001] The utility model relates to the technical field of controlling the lifting or extension of a chair, in particular to a pulling mechanism, a lifting chair and an extension chair. Background Art

[0002] A lift chair is a chair with controllable height. Its design and functions enable it to meet the needs of different people in various occasions. Lift chairs are not only suitable for office scenes, but also widely used in homes, schools, medical institutions and other places. For example, in the home, a lift chair can be used next to the dining table or desk, so that family members can adjust the seat height according to their height and comfort. Most of the existing lift chairs use purely mechanical control switches. The use of pure mechanical switches for seat lifting has the advantages of simple structure, safety and reliability, direct and stable adjustment, durability, low maintenance cost, and applicability to various environments.

[0003] However, the existing purely mechanical switch panel is embedded on the surface of the chair body, and the switch panel only has the function of lifting and lowering control, and does not have the function of charging mobile devices, and has a single function. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide a pulling mechanism, a lifting chair and an extending chair, with a charging component integrated on the first end face of the shell. In addition to controlling the lifting or horizontal extension through the pulling member, the user can also charge the mobile device by connecting the data cable through the charging component, thereby diversifying the functions.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pulling mechanism, comprising: a transfer connection assembly; a pulling member, one end of which is rotatably connected to the transfer connection assembly; a traction rope body, the traction rope body is provided with a rope loop, one end of which is detachably connected to the middle part of the traction member, one end of which is detachably connected to the transfer connection assembly, one end of which is rotated around the other end of the traction member, so that the traction rope body and the rope loop move relative to each other, and the other end of the traction rope body contracts;

[0006] The housing comprises a first end face and a second end face, the first end face is provided with a buckle-pull slot, the transfer connection assembly is connected to the second end face, one side of the housing is provided with a travel slot, the travel slot is connected to the buckle-pull slot, the other end of the pulling member extends into the buckle-pull slot, and the travel slot provides a movable space for the pulling member to realize rotation;

[0007] It also includes a charging component, which includes a charging control module and a charging interface. The first end surface is provided with a charging interface. The charging control module is arranged in the shell, and the charging control module is electrically connected to the charging interface.

[0008] Furthermore, as a more preferred embodiment of the present invention, a return spring is installed at the position where one end of the pulling member is rotatably connected to the transit connection assembly; a buckle plate is provided at the other end of the pulling member, and in an initial state, the elastic force of the return spring makes the surface of the buckle plate flush with the first end surface.

[0009] Furthermore, as a more preferred embodiment of the present invention, the transit connection assembly is provided with a mounting slot adapted to the pulling member, one end of the mounting slot is rotatably connected to one end of the pulling member; the mounting slot is communicated with the travel slot.

[0010] Furthermore, as a more preferred embodiment of the utility model, the top of the transit connection assembly is connected to the shell, and the transit connection assembly is provided with a bending portion at an end away from the shell, the bending portion is provided with a snap groove, and the rope loop is provided with an annular groove adapted to the snap groove; the annular groove is snap-connected with the snap groove.

[0011] Furthermore, as a more preferred embodiment of the utility model, it also includes an elastic clip, one end of which is connected to the rope loop, and the other end is snapped into the installation slot, so that the rope loop is limited and fixed in the clip slot.

[0012] Furthermore, as a more preferred embodiment of the present invention, pins are provided at both ends of the traction rope body, the pins and the traction rope body form a T-shaped end, and the pulling member is provided with a slot adapted to the T-shaped end.

[0013] Based on the same inventive concept, the utility model also provides a lifting chair, including: a chair frame; a lifting base, the middle of the bottom of the chair frame is detachably connected to the lifting base; the lifting base includes a control button, and the control button extends to the surface of the chair frame; the chair frame is provided with a rocker piece on one side of the control button, and one end of the rocker piece is rotatably connected to the chair frame; the chair frame is provided with a locking connector on the other side of the control button; it also includes the above-mentioned pulling mechanism, the other end of the rope loop of the pulling mechanism is detachably connected to the locking connector, the other end of the traction rope body of the pulling mechanism passes through the locking connector, and then is detachably connected to the other end of the rocker piece; one end of the pulling piece is pulled to rotate around the other end of the pulling piece, so that the traction rope body and the rope loop move relative to each other, the other end of the traction rope body contracts, and the middle part of the rocker piece is pressed down on the control button.

[0014] Furthermore, as a more preferred embodiment of the present invention, it further comprises a chair shell, wherein the pulling mechanism is disposed in the chair shell, and the first end surface of the pulling mechanism is flush with the surface of the chair shell.

[0015] Based on the same inventive concept, the utility model also provides a stretching chair, comprising the above-mentioned pulling mechanism.

[0016] Compared with the prior art, the beneficial effects are:

[0017] 1. The utility model provides a pulling mechanism with a charging component integrated on the first end face of the shell. In addition to controlling the lifting or horizontal extension through the pulling member, the user can also charge the mobile device by connecting the data cable through the charging component. The function is diversified to meet the various needs of users.

[0018] 2. The utility model pulls one end of the pulling member to rotate around the other end of the pulling member, so that the traction rope and the rope loop move relative to each other, and the other end of the traction rope contracts. The middle part of the rocker member is pressed down to control the button, and the seat can be controlled manually. Even in the case of power failure, the seat can be normally controlled to rise and fall.

[0019] 3. The utility model is provided with a reset spring at the position of the rotational connection between the pulling member and the transfer connection assembly. Under the action of the reset spring, the pulling member can reset the surface of the buckle plate to be flush with the first end surface, and at the same time drive the traction rope to reset.

[0020] 4. The transfer connection assembly of the utility model is provided with a bending portion at one end away from the shell, and the purpose of the bending portion is to adjust the connection direction between the traction rope bodies so that the traction rope body can be pulled out straight from the port of the rope loop, thereby reducing the friction between the port of the rope loop and the traction rope body, and making pulling more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the unfolding structure of the pulling mechanism in the embodiment.

[0022] Figure 2 It is a schematic diagram of the structure in which the pulling member is opened in the embodiment.

[0023] Figure 3 Schematic diagram of the structure of the pulling mechanism in the embodiment.

[0024] Figure 4 Schematic diagram of the structure of the chair frame connecting the pulling mechanism in the embodiment.

[0025] Reference numerals:

[0026] 1-transfer connector, 11-installation slot, 12-bending portion, 121-buckle slot;

[0027] 2-pull piece, 21-buckle plate, 22-hinge interface, 23-card slot;

[0028] 3-traction rope body, 31-rope loop, 32-pin;

[0029] 4-housing, 41-first end surface, 42-second end surface, 43-buckle groove, 44-travel groove;

[0030] 5-charging component, 51-charging control module, 52-charging interface;

[0031] 6-return spring;

[0032] 7-elastic snap fastener, 71-hook;

[0033] 8-chair frame, 81-rocker, 82-bit connector;

[0034] 9-lifting base, 91-control buttons. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0036] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0037] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component 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 application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0039] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0040] Example

[0041] The present embodiment is intended to promote a solution to the existing technology, in which the existing purely mechanical switch panel is embedded on the surface of the chair body, and the switch panel only has the function of lifting and lowering control, and does not have the function of charging mobile devices, and has a single function.

[0042] To this end, this embodiment provides a pulling mechanism, by integrating a charging component on the first end face of the shell, so that in addition to controlling the lifting or horizontal extension through the pulling member, the user can also charge the mobile device by connecting the data cable through the charging component, which has diversified functions.

[0043] Reference Figure 1-4As shown, specifically, a pulling mechanism includes: a transfer connection member 1; a pulling member 2, one end of the pulling member 2 is rotatably connected to the transfer connection member 1; a traction rope body 3, the traction rope body 3 is provided with a rope loop 31, one end of the traction rope body 3 is detachably connected to the middle part of the pulling member 2, one end of the rope loop 31 is detachably connected to the transfer connection member 1, one end of the traction rope body 2 rotates around the other end of the traction member 2, so that the traction rope body 3 and the rope loop 31 move relative to each other, and the other end of the traction rope body 3 contracts; the pulling mechanism also includes a shell 4, the shell 4 includes a first end face 41 and a second end face 42, the first end face 41 is provided with a buckle groove 43, the transfer connection member 1 is connected to the second end face 42, one side of the shell 4 is provided with a travel groove 44, the travel groove 44 is connected to the buckle groove 43, the other end of the traction member 2 extends into the buckle groove 43, and the travel groove 44 provides a movable space for the traction member 2 to realize rotation. It should be supplemented that the first end face 41 can be the top surface of the shell 4, and the second end face 42 can be the bottom surface of the shell 4; the pulling mechanism also includes a charging component 5, the charging component 5 includes a charging control module 51 and a charging interface 52, the first end face 41 is provided with a charging interface 52, the charging control module 51 is arranged in the shell 4, and the charging control module 51 is electrically connected to the charging interface 52.

[0044] In this embodiment, the charging interface 52 includes one or more of a USB interface, a Type-C interface, or a MicroUSB interface. In this embodiment, the charging control module 51 may be a charging management IC module: responsible for voltage conversion and management, ensuring voltage stability during charging, and being able to adjust according to different charging stages, such as trickle charging, constant current charging, and constant voltage charging.

[0045] Reference Figure 1-3 As shown, specifically, in this embodiment, a return spring 6 is installed at the position where one end of the pulling member 2 is rotatably connected to the intermediate connecting member 1; a buckle plate 21 is provided at the other end of the pulling member 2, and in the initial state, the elastic force of the return spring 6 makes the surface of the buckle plate 21 flush with the first end surface 41. In some embodiments, the pulling member 2 can be set to a U shape, with the top of one side of the U shape being rotatably connected to the intermediate connecting member 1, the bottom being connected to the pulling member 2, and the top of the other side of the U shape being connected to the buckle plate 21.

[0046] Reference Figure 1-3 As shown, specifically, in this embodiment, the intermediate connection member 1 is provided with a mounting slot 11 adapted to the pulling member 2, one end of the mounting slot 11 is rotatably connected to one end of the pulling member 2; the mounting slot 11 is communicated with the travel slot 44. A hinge port 22 is provided at one end of the pulling member 2, and the mounting slot 11 passes through the hinge port 22 of the pulling member 2 and the return spring 6 through the rotating shaft.

[0047] Reference Figure 1-3As shown, specifically, in this embodiment, the top of the transit connector 1 is connected to the shell 4, and the transit connector 1 is provided with a bending portion 12 at the end away from the shell 4, the bending portion 12 is provided with a snap groove 121, and the rope loop 31 is provided with an annular groove adapted to the snap groove 121; the annular groove is snap-connected with the snap groove 121.

[0048] Reference Figure 1-3 As shown, specifically, in this embodiment, it also includes an elastic clip 7, one end of the elastic clip 7 is connected to the rope loop 31, and the other end is snapped into the installation slot 11, so that the rope loop 31 is limited and fixed in the snap slot 121. The elastic clip 7 can be U-shaped, the size of the U-shaped opening is adapted to the rope loop 31, and the U-shaped ports are respectively provided with barbs 71, the U bottom of the elastic clip 7 is snapped into the rope loop 31, and the top barbs 71 are hung in the installation slot 11.

[0049] Reference Figure 1 and 3 As shown, specifically, in this embodiment, pins 32 are provided at both ends of the traction rope body 3, the pins 32 and the traction rope body 3 form a T-shaped end, and the pulling member 2 is provided with a slot 23 adapted to the T-shaped end.

[0050] Reference Figure 4 As shown, the present embodiment further provides a lifting chair, comprising: a chair frame 8; a lifting base 9, the middle of the bottom of the chair frame 8 being detachably connected to the lifting base 9; the lifting base 9 comprising a control button 91, the control button 91 extending to the surface of the chair frame 8; the chair frame 8 is provided with a rocker 81 on one side of the control button 91, one end of the rocker 81 being rotatably connected to the chair frame 8; the chair frame 8 is provided with a locking connector 82 on the other side of the control button 91;

[0051] It also includes the above-mentioned pulling mechanism, the other end of the rope loop 31 of the pulling mechanism is detachably connected to the locking connector 82, the other end of the traction rope body 3 of the pulling mechanism passes through the locking connector 82, and then is detachably connected to the other end of the rocker member 81; one end of the pulling member 2 is pulled to rotate around the other end of the pulling member 2, so that the traction rope body 3 and the rope loop 31 move relative to each other, the other end of the traction rope body 3 contracts, and the middle part of the rocker member 81 is pressed down to control the button 91.

[0052] In some embodiments, the driving unit of the lifting base 9 can be a hydraulic or pneumatic cylinder: used to generate lifting force. The hydraulic cylinder is filled with liquid, such as hydraulic oil, and the pneumatic cylinder is filled with compressed air. For example, the control button 91 of the lifting base 9 is acted on by a pulling mechanism to release the limit. Under the pressure of the pneumatic cylinder, the lifting base 9 acts on the chair frame 8 to slowly rise, or the user sits on the lifting chair and applies downward pressure, and the chair frame 8 slowly descends to a height suitable for the user. The pulling mechanism is released, the control button 91 of the lifting base 9 is reset, the limit is locked, and the height of the chair frame 8 is fixed.

[0053] Reference Figure 4 As shown, the pulling mechanism further includes a chair shell sleeved on the surface of the chair frame 8 , the pulling mechanism is disposed in the chair shell sleeve, and the first end surface 41 of the pulling mechanism is flush with the surface of the chair shell sleeve.

[0054] This embodiment also provides a stretching chair, comprising the above-mentioned pulling mechanism.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pulling mechanism, characterized in that: include: Transit connection components; A pulling member, one end of which is rotatably connected to the transfer connection assembly; A traction rope body, wherein the traction rope body is provided with a rope loop, one end of the traction rope body is detachably connected to the middle part of the pulling member, one end of the rope loop is detachably connected to the transfer connection assembly, one end of the pulling member rotates around the other end of the pulling member, so that the traction rope body and the rope loop move relative to each other, and the other end of the traction rope body contracts; The housing also includes a first end surface and a second end surface, the first end surface is provided with a buckle-pull slot, the transfer connection assembly is connected to the second end surface, one side of the housing is provided with a travel slot, the travel slot is connected to the buckle-pull slot, the other end of the pulling member extends into the buckle-pull slot, and the travel slot provides a movable space for the pulling member to realize rotation; It also includes a charging component, which includes a charging control module and a charging interface. The first end surface is provided with a charging interface. The charging control module is arranged in the shell, and the charging control module is electrically connected to the charging interface.

2. The pulling mechanism according to claim 1, characterized in that: A return spring is installed at the position where one end of the pulling member is rotatably connected to the transit connection assembly; a buckle-pull plate is provided at the other end of the pulling member. In an initial state, the elastic force of the return spring makes the surface of the buckle-pull plate flush with the first end surface.

3. The pulling mechanism according to claim 2, characterized in that: The transfer connection assembly is provided with a mounting slot adapted to the pulling member, one end of the mounting slot is rotatably connected to one end of the pulling member; the mounting slot is communicated with the travel slot.

4. The pulling mechanism according to claim 3, characterized in that: The top of the transit connection assembly is connected to the shell, and the transit connection assembly is provided with a bending portion at one end away from the shell, the bending portion is provided with a snap groove, and the rope loop is provided with an annular groove adapted to the snap groove; the annular groove is snap-connected with the snap groove.

5. The pulling mechanism according to claim 4, characterized in that: It also includes an elastic buckle, one end of which is connected to the rope loop, and the other end of which is snapped into the installation slot, so that the rope loop is limited and fixed in the buckle slot.

6. The pulling mechanism according to claim 1, characterized in that: Pins are arranged at both ends of the traction rope body, the pins and the traction rope body form a T-shaped end, and the pulling member is provided with a slot matched with the T-shaped end.

7. The pulling mechanism according to claim 1, characterized in that: The charging interface includes a USB interface, a Type-C interface or a Micro USB interface or a combination thereof.

8. A lifting chair, characterized in that: include: Chair frame; A lifting base, the middle of the bottom of the chair frame is detachably connected to the lifting base; The lifting base includes a control button, and the control button extends to the surface of the chair frame; the chair frame is provided with a rocker on one side of the control button, and one end of the rocker is rotatably connected to the chair frame; the chair frame is provided with a locking connector on the other side of the control button; It also includes the pulling mechanism described in any one of claims 1 to 7, wherein the other end of the rope loop of the pulling mechanism is detachably connected to the locking connector, and the other end of the traction rope body of the pulling mechanism passes through the locking connector and is detachably connected to the other end of the rocker member; one end of the pulling member is pulled to rotate around the other end of the pulling member so that the traction rope body and the rope loop move relative to each other, and the other end of the traction rope body contracts to press the middle part of the rocker member down on the control button.

9. The chair lift according to claim 8, characterized in that: It also includes a chair shell, the pulling mechanism is arranged in the chair shell, and the first end surface of the pulling mechanism is flush with the surface of the chair shell.

10. A stretching chair, characterized in that: It comprises the pulling mechanism described in any one of claims 1 to 7.

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