Telescopic structure of chair

Abstract

The utility model discloses a telescopic structure of a chair, which relates to the field of chairs and is technically characterized by comprising a support frame, a chair body is arranged at the top of the support frame, a mounting cavity is arranged at the bottom of the chair body, a mounting base is arranged in the mounting cavity, a movable cavity is arranged at the bottom of the mounting base, and the movable cavity is communicated with the mounting base. A movable cavity is formed in one side of the seat body, a foot supporting plate is slidably connected into the movable cavity, a connecting groove is formed in one side of the seat body and communicates with the movable cavity, a fixed spring is arranged in the connecting groove, a movable column is arranged at one end of the fixed spring, and a fixed clamping column is arranged at one end of the movable column; and one end of the fixing clamping column penetrates through the interior of the fixing spring and the connecting groove, so that the technical problems that how to store the foot support conveniently and save space after the foot support is used, and the structure of an existing chair with the foot support cannot completely meet the requirements are solved.

Description

Technical Field

[0001] The utility model relates to the field of chairs, in particular to a telescopic structure of a chair. Background Art

[0002] The chair is one of the indispensable furniture for life and work. With the development of society and the continuous updating of production technology, the types of chairs are constantly increasing to meet people's various needs and enable people to carry out daily activities in a comfortable environment.

[0003] Usually, when people sit on a chair, their feet can only be placed on the ground or hanging. For people who sit and work, maintaining a posture for a long time will make the body feel very uncomfortable. Due to the limitations of the chair structure, people will still feel uncomfortable no matter how they adjust their sitting posture. Some existing chairs are equipped with footrests on the seat so that people can put their feet on the ground.

[0004] The footrest allows the human body to maintain a more comfortable posture. However, in real life, in addition to comfort, people may have other requirements for chairs with footrests according to actual conditions, such as how to store the footrests conveniently and save space after use. The structure of existing chairs with footrests cannot fully meet these requirements and is still not convenient and easy to use for some users. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a telescopic structure of a chair, aiming to solve the technical problems of how to store the footrest conveniently and save space after use, etc. The structure of the existing chair with footrest cannot fully meet these requirements.

[0006] The technical solution of the utility model to solve the above technical problems is:

[0007] A telescopic structure of a chair comprises a support frame, a seat body is provided on the top of the support frame, a mounting cavity is provided at the bottom of the seat body, a mounting base is provided in the mounting cavity, a movable cavity is provided at the bottom of the mounting base, a foot support is slidably connected in the movable cavity, a connecting groove is provided on one side of the seat body, the connecting groove is connected to the movable cavity, a fixing spring is provided in the connecting groove, a movable column is provided at one end of the fixing spring, a fixing clamping column is provided at one end of the movable column, one end of the fixing clamping column passes through the interior of the fixing spring and the connecting groove, a first fixing hole is provided on one side of the foot support, so that the inserted end of the fixing clamping column is clamped with the first fixing hole.

[0008] After the footrest is used, the footrest slides into the movable cavity. When the first fixing hole of the footrest corresponds to the fixed clamping column, the fixing spring is connected to the movable column, so that the fixed clamping column is inserted into the first fixing hole of the footrest under the action of elasticity, thereby storing the footrest in the movable cavity and preventing the footrest from occupying too much space.

[0009] Furthermore, in the present application, a second fixing hole is provided on one side of the foot support plate, and the second fixing hole is used for clamping the insertion end of the fixing clamping column.

[0010] When the footrest needs to be used, pull the movable column, and the movable column drives the fixed clamping column to disengage from the first fixing hole of the footrest, thereby facilitating the footrest to slide out of the movable cavity for use; when the second fixing hole corresponds to the fixed clamping column, the fixed clamping column is elastically clamped with the second fixing hole, thereby facilitating fixing the extended position of the footrest.

[0011] Furthermore, in the present application, a connecting tube is provided on one side of the seat body, the interior of the connecting tube is connected to the connecting groove, first clamping protrusions are provided on both sides of the movable column, the first clamping protrusions on both sides of the movable column are clamped with one end of the fixed spring, second clamping protrusions are provided on both sides of the interior of the connecting tube, the second clamping protrusions on both sides of the connecting tube are clamped with the other end of the fixed spring.

[0012] When the fixed spring is deformed, the first clamping protrusions on both sides of the movable column are clamped with one end of the fixed spring, and the second clamping protrusions on both sides of the connecting tube are clamped with the other end of the fixed spring, thereby facilitating the position of the fixed spring to be limited and preventing the fixed spring from falling off.

[0013] Furthermore, in the present application, a support tube is provided at one end of the movable cavity, a movable rod is slidably connected inside the support tube, and one end of the movable rod is connected to the foot support plate.

[0014] Furthermore, in the present application, a return spring is sleeved on the outside of the movable rod, one end of the return spring abuts against the support tube, and the other end of the return spring abuts against the foot support plate.

[0015] Furthermore, in the present application, a first limiting ring is provided at one end of the support tube, one end of the return spring is plugged into the interior of the first limiting ring, a second limiting ring is provided on one side of the foot support plate, and the other end of the return spring is plugged into the second limiting ring.

[0016] Furthermore, in the present application, a deceleration plate is provided on the top of the movable cavity, the deceleration plate is elastic, and the bottom of the deceleration plate is frictionally matched with the foot support plate.

[0017] Furthermore, in the present application, a fixed seat is provided at the top of the support frame, a first rod is provided at one side of the support frame, a first sleeve is provided at one end of the fixed seat, the first sleeve is sleeved with the first rod, a second rod is provided at the other side of the support frame, a second sleeve is provided at the other end of the fixed seat, the second sleeve is sleeved with the second rod, and the seat body is provided at the top of the fixed seat.

[0018] Furthermore, in the present application, limiting plates are provided on both sides of the fixing seat, and the seat body is located between the limiting plates on both sides of the fixing seat.

[0019] Furthermore, in the present application, guide grooves are provided on both sides of the movable cavity, and guide sliders are provided on both sides of the foot support plate. The guide sliders on both sides of the foot support plate are respectively slidably matched with the guide grooves on both sides of the movable cavity.

[0020] The utility model has the following beneficial effects:

[0021] After the footrest is used, the footrest slides into the movable cavity. When the first fixing hole of the footrest corresponds to the fixed clamping column, the fixing spring is connected to the movable column, so that the fixed clamping column is inserted into the first fixing hole of the footrest under the action of elasticity, thereby storing the footrest in the movable cavity and preventing the footrest from occupying too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a structural schematic diagram of a foot support plate of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the first sleeve and the second sleeve of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the reset spring of the utility model.

[0026] Figure 5 It is a structural schematic diagram of a fixed clamping column of the utility model.

[0027] Wherein, the reference numerals are:

[0028] 1. Support frame; 2. First set of rods; 3. Second set of rods; 4. Fixed seat; 5. First sleeve; 6. Second sleeve; 7. Limit plate; 8. Seat body; 9. Mounting cavity; 10. Mounting base; 11. Movable cavity; 12. Support cylinder; 13. Movable rod; 14. First limit ring; 15. Footrest; 16. Second limit ring; 17. Speed ​​reducer; 18. Return spring; 19. Connecting groove; 20. First fixing hole; 21. Second fixing hole; 22. Connecting cylinder; 23. Fixed clamping column; 24. Movable column; 25. Fixed spring; 26. First clamping protrusion; 27. Second clamping protrusion; 28. Guide slider; 29. ​​Guide slide groove. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments 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.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Reference Figure 1-Figure 5 In some specific embodiments, a telescopic structure of a chair includes a support frame 1, a seat body 8 is provided on the top of the support frame 1, a mounting cavity 9 is provided at the bottom of the seat body 8, a mounting base 10 is provided in the mounting cavity 9, a movable cavity 11 is provided at the bottom of the mounting base 10, a foot support plate 15 is slidably connected in the movable cavity 11, a connecting groove 19 is provided on one side of the seat body 8, the connecting groove 19 is connected to the movable cavity 11, a fixing spring 25 is provided in the connecting groove 19, a movable column 24 is provided at one end of the fixing spring 25, a fixing clamping column 23 is provided at one end of the movable column 24, one end of the fixing clamping column 23 passes through the interior of the fixing spring 25 and the connecting groove 19, and a first fixing hole 20 is provided on one side of the foot support plate 15, so that the insertion end of the fixing clamping column 23 is clamped with the first fixing hole 20.

[0033] Through the above technical solution, after the footrest 15 is used, the footrest 15 slides into the movable cavity 11. When the first fixing hole 20 of the footrest 15 corresponds to the fixed clamping column 23, since the fixing spring 25 is connected to the movable column 24, the fixed clamping column 23 is inserted into the first fixing hole 20 of the footrest 15 under the action of elasticity, thereby storing the footrest 15 in the movable cavity 11, avoiding the footrest 15 occupying more space.

[0034] Reference Figure 4 In some specific implementations, a second fixing hole 21 is opened on one side of the foot support plate 15, and the second fixing hole 21 is used to fix the insertion end of the clamping column 23.

[0035] Through the above technical solution, when the footrest 15 needs to be used, the movable column 24 is pulled, and the movable column 24 drives the fixed clamping column 23 to disengage from the first fixing hole 20 of the footrest 15, thereby facilitating the footrest 15 to slide out of the movable cavity 11 for use. When the second fixing hole 21 corresponds to the fixed clamping column 23, the fixed clamping column 23 is elastically clamped with the second fixing hole 21, thereby facilitating fixing the extended position of the footrest 15.

[0036] Reference Figure 5 In some specific embodiments, a connecting tube 22 is provided on one side of the seat body 8, and the interior of the connecting tube 22 is connected to the connecting groove 19. First clamping protrusions 26 are provided on both sides of the movable column 24. The first clamping protrusions 26 on both sides of the movable column 24 are clamped with one end of the fixed spring 25. Second clamping protrusions 27 are provided on both sides of the interior of the connecting tube 22. The second clamping protrusions 27 on both sides of the connecting tube 22 are clamped with the other end of the fixed spring 25.

[0037] Through the above technical solution, when the fixed spring 25 is deformed, the first latching protrusions 26 on both sides of the movable column 24 are latched with one end of the fixed spring 25, and the second latching protrusions 27 on both sides of the connecting tube 22 are latched with the other end of the fixed spring 25, thereby facilitating the limiting of the position of the fixed spring 25 and preventing the fixed spring 25 from detaching.

[0038] Reference Figure 4 In some specific embodiments, a support tube 12 is provided at one end of the movable cavity 11 , a movable rod 13 is slidably connected inside the support tube 12 , and one end of the movable rod 13 is connected to the foot support plate 15 .

[0039] Through the above technical solution, when the foot support plate 15 slides, the foot support plate 15 drives the movable rod 13 and the inner part of the support tube 12 to slide, so as to facilitate guiding the moving position of the foot support plate 15.

[0040] Reference Figure 4 In some specific embodiments, a return spring 18 is sleeved on the outside of the movable rod 13 , one end of the return spring 18 abuts against the support tube 12 , and the other end of the return spring 18 abuts against the foot support plate 15 .

[0041] Through the above technical solution, when the fixed clamping column 23 is disengaged from the first fixing hole 20, the reset spring 18 is extended, thereby driving the movable rod 13 to slide out of the support tube 12, and the movable rod 13 drives the foot support plate 15 to slide out of the movable cavity 11, so that the foot support plate 15 can be quickly extended.

[0042] Reference Figure 4 In some specific embodiments, a first limiting ring 14 is provided at one end of the support tube 12, one end of the return spring 18 is plugged into the interior of the first limiting ring 14, a second limiting ring 16 is provided on one side of the foot support plate 15, and the other end of the return spring 18 is plugged into the second limiting ring 16.

[0043] Through the above technical solution, when the reset spring 18 is extended, one end of the reset spring 18 is plugged into the inside of the first limiting ring 14, and the other end of the reset spring 18 is plugged into the second limiting ring 16, thereby facilitating the limiting of the positions of the two ends of the reset spring 18 to prevent the reset spring 18 from falling off.

[0044] Reference Figure 4 In some specific embodiments, a deceleration plate 17 is provided on the top of the movable cavity 11 . The deceleration plate 17 is elastic, and the bottom of the deceleration plate 17 is frictionally matched with the foot support plate 15 .

[0045] Through the above technical solution, when the return spring 18 is extended, the movable rod 13 drives the footrest 15 to slide out of the movable cavity 11, and the bottom of the deceleration plate 17 frictionally cooperates with the footrest 15, thereby facilitating the sliding out speed of the footrest 15 and preventing the footrest 15 from sliding out too fast and causing injury to the user.

[0046] Reference Figure 1-Figure 3 In some specific embodiments, a fixed seat 4 is provided at the top of the support frame 1, a first set of rods 2 is provided on one side of the support frame 1, a first sleeve 5 is provided at one end of the fixed seat 4, and the first sleeve 5 is sleeved with the first set of rods 2, a second set of rods 3 is provided on the other side of the support frame 1, a second sleeve 6 is provided at the other end of the fixed seat 4, and the second sleeve 6 is sleeved with the second set of rods 3, and a seat body 8 is provided at the top of the fixed seat 4.

[0047] Through the above technical solution, the first sleeve 5 is sleeved with the first sleeve rod 2, and the second sleeve 6 is sleeved with the second sleeve rod 3, so as to limit the position of the fixing seat 4 so that the fixing seat 4 can support the seat body 8.

[0048] Reference Figure 1-Figure 3 In some specific implementations, limiting plates 7 are provided on both sides of the fixing seat 4 , and the seat body 8 is located between the limiting plates 7 on both sides of the fixing seat 4 .

[0049] Reference Figure 1-Figure 5 In some specific embodiments, guide grooves 29 are provided on both sides of the movable cavity 11, and guide sliders 28 are provided on both sides of the foot support plate 15. The guide sliders 28 on both sides of the foot support plate 15 are slidably matched with the guide grooves 29 on both sides of the movable cavity 11 respectively.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A telescopic structure of a chair, comprising a support frame, a seat body is provided on the top of the support frame, characterized in that: A mounting cavity is provided at the bottom of the seat body, a mounting base is provided in the mounting cavity, a movable cavity is provided at the bottom of the mounting base, a foot support is slidably connected in the movable cavity, a connecting groove is provided on one side of the seat body, the connecting groove is connected to the movable cavity, a fixing spring is provided in the connecting groove, a movable column is provided at one end of the fixing spring, a fixing clamping column is provided at one end of the movable column, one end of the fixing clamping column passes through the interior of the fixing spring and the connecting groove, a first fixing hole is provided on one side of the foot support, so that the inserted end of the fixing clamping column is clamped with the first fixing hole.

2. The telescopic structure of a chair according to claim 1, characterized in that: A second fixing hole is provided on one side of the foot support plate, and the second fixing hole is used for clamping the insertion end of the fixing clamping column.

3. The telescopic structure of a chair according to claim 1, characterized in that: A connecting tube is provided on one side of the seat body, and the interior of the connecting tube is connected to the connecting groove. First clamping protrusions are provided on both sides of the movable column, and the first clamping protrusions on both sides of the movable column are clamped with one end of the fixed spring. Second clamping protrusions are provided on both sides of the interior of the connecting tube, and the second clamping protrusions on both sides of the connecting tube are clamped with the other end of the fixed spring.

4. The telescopic structure of a chair according to claim 1, characterized in that: A support tube is provided at one end of the movable cavity, a movable rod is slidably connected inside the support tube, and one end of the movable rod is connected to the foot support plate.

5. The telescopic structure of a chair according to claim 4, characterized in that: A return spring is sleeved on the outside of the movable rod, one end of the return spring contacts the support tube, and the other end of the return spring contacts the foot support plate.

6. The telescopic structure of a chair according to claim 5, characterized in that: A first limiting ring is provided at one end of the support tube, one end of the return spring is plugged into the interior of the first limiting ring, a second limiting ring is provided on one side of the foot support plate, and the other end of the return spring is plugged into the second limiting ring.

7. The telescopic structure of a chair according to claim 5, characterized in that: A deceleration plate is arranged on the top of the movable cavity, the deceleration plate is elastic, and the bottom of the deceleration plate is frictionally matched with the foot support plate.

8. The telescopic structure of a chair according to claim 1, characterized in that: A fixing seat is provided at the top of the support frame, a first sleeve is provided at one side of the support frame, a first sleeve is provided at one end of the fixing seat, the first sleeve is sleeved with the first sleeve, a second sleeve is provided at the other side of the support frame, a second sleeve is provided at the other end of the fixing seat, the second sleeve is sleeved with the second sleeve, and the seat body is provided at the top of the fixing seat.

9. The telescopic structure of a chair according to claim 8, characterized in that: Limiting plates are arranged on both sides of the fixing seat, and the seat body is located between the limiting plates on both sides of the fixing seat.

10. The telescopic structure of a chair according to claim 1, characterized in that: Guide grooves are arranged on both sides of the movable cavity, and guide sliders are arranged on both sides of the foot support plate. The guide sliders on both sides of the foot support plate are respectively slidably matched with the guide grooves on both sides of the movable cavity.

Images