CN220607752U - Tension spring return type chair structure - Google Patents
Tension spring return type chair structure Download PDFInfo
- Publication number
- CN220607752U CN220607752U CN202322195032.9U CN202322195032U CN220607752U CN 220607752 U CN220607752 U CN 220607752U CN 202322195032 U CN202322195032 U CN 202322195032U CN 220607752 U CN220607752 U CN 220607752U
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- China
- Prior art keywords
- tension spring
- cover plate
- plastic
- shaft sleeve
- plastics
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- 239000004033 plastic Substances 0.000 claims abstract description 63
- 229920003023 plastic Polymers 0.000 claims abstract description 63
- 238000011084 recovery Methods 0.000 claims abstract description 26
- 238000013016 damping Methods 0.000 claims abstract description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 20
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 20
- 241001330002 Bambuseae Species 0.000 claims description 20
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 20
- 239000011425 bamboo Substances 0.000 claims description 20
- 210000001503 joint Anatomy 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000004677 Nylon Substances 0.000 abstract description 4
- 229920001778 nylon Polymers 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000004044 response Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000306 component Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
The utility model discloses a tension spring return compound seat structure, which relates to the technical field of improvement of chairs and comprises chair legs, plastic backrests and plastic bases, wherein central lugs are symmetrically and fixedly arranged at bottoms of the chair legs, the left side faces of the chair legs are fixedly provided with the plastic backrests, slot holes are formed in the plastic backrests along the central line positions in the vertical direction, an extension cylinder is rotatably arranged between the two groups of central lugs, a support return frame is fixedly arranged at the side faces of the extension cylinder, and a recovery assembly for driving a plastic cover plate to overturn and recover is arranged at the top of the bottom face of the plastic cover plate. According to the utility model, the recovery component is arranged at the top of the plastic cover plate, and the recovery component based on the tension spring reset stretching can enable the plastic cover plate to automatically reset when the whole chair is not sitting, so that the nylon sleeves are sleeved at the rotating shaft positions of the components, and the damping rods are additionally arranged at the bottom of the plastic cover plate, so that the response speed of the plastic cover plate is proper during recovery, and the noise of the plastic cover plate is greatly reduced during recovery.
Description
Technical Field
The utility model relates to the technical field of chair improvement, in particular to a tension spring return type seat structure.
Background
The integrated desk and chair is a furniture design integrating a desk and a chair. Their table top and seat are typically fixed together to form an integral unit. The design has various forms and styles, can adapt to different learning environments and requirements, and has the main advantages of simple and compact design. They occupy less space and are suitable for classrooms with limited space or multifunctional classrooms. The design can also ensure the alignment of the tabletop and the chair, so that students can use the chair more conveniently and comfortably.
The conventional desk and chair is generally of a fixed structure, and some of the desk and chair are foldable and recoverable, but the existing desk and chair which is recovered through folding adopts a gravity recovery structure, the gravity recovery mechanism can recover only by the dead weight of the rear end of the seat plate, and the recovery mechanism is too fast in recovery speed and too loud in noise.
Disclosure of Invention
The utility model aims to solve the problems that a conventional desk and chair in the prior art is generally of a fixed structure and also has a part of foldable and recoverable desk and chair, but the existing desk and chair which is recovered through folding adopts a fumigating force recovery structure, and a gravity recovery mechanism can recover only by adding dead weight at the rear end of a seat plate, so that the recovery mechanism is fast in recovery speed and high in noise, and the tension spring recovery type chair structure is provided.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a extension spring return formula seat structure, includes chair standing foot, plastics back, plastic base, chair standing foot bottom symmetry is fixed to be provided with the center ear, the fixed plastics back that is provided with in chair standing foot left surface, the plastics back is provided with the slot hole along vertical direction central line position, two sets of rotate between the center ear and be provided with extension section of thick bamboo, extension section of thick bamboo side is fixed to be provided with and is supported back the frame, support back the fixed extension section of thick bamboo that is provided with in frame top, extension section of thick bamboo top rotates and sets up in top joint ear intermediate position, top joint ear top is fixed to be provided with plastic base, plastic base top adopts the bolt fastening to be provided with the plastics apron, plastics apron bottom surface top is provided with the recovery subassembly that drives plastics apron upset and retrieve.
Optionally, retrieve the subassembly and include top extension section of thick bamboo, left axle sleeve, right axle sleeve, butt joint section of thick bamboo, direction subassembly, top extension section of thick bamboo side rotates to set up plastics base bottom surface top, left axle sleeve top vertical fixation is provided with the extension spring separation blade.
Optionally, the top is prolonged a section of thick bamboo side top and is provided with left axle sleeve, left side axle sleeve right flank adopts the bolt fastening to be provided with right axle sleeve, hold a butt joint section of thick bamboo between left axle sleeve, the right axle sleeve, the butt joint section of thick bamboo has inserted guide assembly along vertical direction activity.
Optionally, the bottom intermediate position of support back frame bottom is fixed to be provided with the end and connects the ear, end connects the ear and rotates with damping pole one end to be connected, damping pole top rotates and is provided with the top and connects the ear, the top connects the fixed intermediate position that sets up to plastics base bottom.
Optionally, the direction subassembly includes guide post, top briquetting, bottom briquetting, chair stand foot side is provided with first splicing block, second splicing block along vertical direction equidistance.
Optionally, the top briquetting adopts screw and first splicing block side fixed connection, the end briquetting side adopts screw and second splicing block side fixed connection, fixed centre gripping has the guide post between top briquetting, the first splicing block, fixed centre gripping is to end briquetting, between the second splicing block in the guide post bottom.
Compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the recovery component is arranged at the top of the plastic cover plate, and the recovery component based on the tension spring reset stretching can enable the plastic cover plate to automatically reset when the whole chair is not sitting, so that the nylon sleeves are sleeved at the rotating shaft positions of the components, and the damping rods are additionally arranged at the bottom of the plastic cover plate, so that the response speed of the plastic cover plate is proper during recovery, and the noise of the plastic cover plate is greatly reduced during recovery.
2. One of the core components of the recovery component is a guide component, and the guide component can ensure that the plastic cover plate keeps stable when being unfolded or restored to be stored in the vertical position, and further reduces noise generated when the chair is unfolded and restored.
Drawings
FIG. 1 is a schematic view of the overall stowage structure of the present utility model;
FIG. 2 is a schematic view of a seat deployment configuration;
FIG. 3 is a spatial distribution diagram of a plastic seat pan, support assembly, recovery assembly;
FIG. 4 is a spatial distribution diagram of a recovery assembly;
fig. 5 is a schematic view of a partial structure of a chair leg and its connection.
In the figure: 1. chair stand legs; 2. a plastic backrest; 22. a central ear; 3. a plastic base; 31. a plastic cover plate; 32. a top connection lug; 4. a fixing bolt; 5. a support return frame; 51. a bottom lug; 6. an extension cylinder; 7. a flanged nylon sleeve; 8. a damping rod; 9. a tension spring; 10. a top extension cylinder; 11. a left shaft sleeve; 12. a butt joint barrel; 13. a right sleeve; 14. a connecting seat; 15. a tension spring baffle; 16. pressing a block; 17. a guide post; 18. a bottom pressing block; 19. a hook; 20. a first joint block; 21. and a second joint block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-5, a tension spring return type chair structure comprises a chair standing foot 1, a plastic backrest 2 and a plastic base 3, wherein a central lug 22 is symmetrically and fixedly arranged at the bottom of the chair standing foot 1, the plastic backrest 2 is fixedly arranged on the left side surface of the chair standing foot 1, and a slot hole is formed in the plastic backrest 2 along the central line in the vertical direction, and is not shown in the figure.
The motion path is reserved for the connecting piece at the right edge of the bottom surface of the plastic base 3, the whole structure of the chair stand 1 is of an inverted T shape, the whole structure of the chair stand 1 is made of aluminum alloy, the four corners of the bottom of the chair stand 1 are provided with stepped holes, the chair stand 1 can be fixed on the ground of a classroom by using expansion bolts, the top of each stepped hole can be additionally provided with a decorative cover (not shown in the figure) surface made of plastic, and the decorative cover is plugged into each stepped hole.
An extension cylinder 6 is rotatably arranged between the two groups of central lugs 22, a support return frame 5 is fixedly arranged on the side face of the extension cylinder 6, a bottom connecting lug 51 is fixedly arranged at the middle position of the bottom of the support return frame 5, the bottom connecting lug 51 is rotatably connected with one end of a damping rod 8, a top connecting lug 32 is rotatably arranged at the top of the damping rod 8, the top connecting lug 32 is fixedly arranged at the middle position of the bottom of the plastic base 3, the damping rod 8 is a common hydraulic rod in the prior art, and certain damping and support are brought for the rotation of the plastic base 3.
The support is provided with extension section of thick bamboo 6 back to frame 5 top is fixed, and extension section of thick bamboo 6 top rotates the setting and connects ear 32 intermediate position in the top, and the fixed plastics base 3 that is provided with in top that connects ear 32, plastics base 3 top adopt the bolt fastening to be provided with plastics apron 31, adopts bolt fastening to connect between plastics base 3 and the plastics apron 31, and plastics base 3 is as shown, does not cavity set up, and inside is provided with many strengthening ribs, lightens the weight of whole seat when guaranteeing structural strength.
The plastic cover plate 31 bottom surface top is provided with the recovery subassembly that drives plastic cover plate 31 upset and retrieve, and recovery subassembly is including top extension section of thick bamboo 10, left axle sleeve 11, right axle sleeve 13, butt joint section of thick bamboo 12, direction subassembly, and top extension section of thick bamboo 10 side rotates and sets up plastics base 3 bottom surface top, and left axle sleeve 11 top is provided with extension spring separation blade 15 perpendicularly, and extension spring separation blade 15 can block extension spring 9 side, is provided with connecting seat 14 between extension spring separation blade 15 and the left axle sleeve 11, and the connecting 14 side is provided with the screw hole.
The top of the side surface of the top extension cylinder 10 is provided with a left shaft sleeve 11, the right side surface of the left shaft sleeve 11 is fixedly provided with a right shaft sleeve 13 by bolts, a butt joint cylinder 12 is accommodated between the left shaft sleeve 11 and the right shaft sleeve 13, cylindrical cavities are formed in the side surfaces of the left shaft sleeve 11 and the right shaft sleeve 13 and are used for accommodating the butt joint cylinder 12, and when the butt joint cylinder 12 is displaced in the vertical direction, the integrated structure of the left shaft sleeve 11 and the right shaft sleeve 13 can synchronously displace in the vertical direction.
The butt joint section of thick bamboo 12 has inserted guide assembly along vertical direction activity, guide assembly includes guide post 17, top briquetting 16, end briquetting 18, chair station foot 1 side is provided with first splicing block 20 along vertical direction equidistance, second splicing block 21, top briquetting 16 adopts screw and first splicing block 20 side fixed connection, end briquetting 18 side adopts screw and second splicing block 21 side fixed connection, fixed centre gripping has guide post 17 between top briquetting 16, the first splicing block 20, guide post 17 bottom fixed centre gripping is to between briquetting 18, the second splicing block 21, guide post 17 is fixed at chair station foot 1 side through above-mentioned structure.
The top of the right shaft sleeve 13 is fixedly connected with one end of the tension spring 9, the other end of the tension spring 9 is fixedly connected to the side face of the hook 19, and one end of the hook 19 is fixedly arranged at the top of the side face of the chair stand 1.
The rotating shafts of all parts at the rotating positions are composed of the fixing bolts 4 and the flange nylon sleeves 7, so that the noise is low when all the parts rotate.
The specific implementation steps and principles of the utility model are as follows:
in the initial state, as shown in fig. 1, the left shaft sleeve 11, the top extension cylinder 10 and the right shaft sleeve 13 are pulled by the tension spring 9, the plastic cover plate 31 is in a vertical state, the tension spring 9 is in an original length state, the plastic cover plate 31 is manually pressed down, the support back frame 5 rotates around the central lug 22, the top of the plastic cover plate 31 moves down to the limit position, and an integral body formed by the left shaft sleeve 11, the top extension cylinder 10 and the right shaft sleeve 13 moves down to the limit position, and the tension spring 9 is stretched.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a extension spring return formula seat structure, includes chair stand foot (1), plastics back (2), plastics base (3), its characterized in that, chair stand foot (1) bottom symmetry is fixed to be provided with centre ear (22), chair stand foot (1) left surface is fixed to be provided with plastics back (2), slot hole has been seted up along vertical direction central line position to plastics back (2), two sets of rotate between centre ear (22) and be provided with extension section of thick bamboo (6), extension section of thick bamboo (6) side is fixed to be provided with support back frame (5), support back frame (5) top is fixed to be provided with extension section of thick bamboo (6), extension section of thick bamboo (6) top rotates and sets up in top connector (32) intermediate position, top connector (32) top is fixed to be provided with plastics base (3), plastics base (3) top adopts the bolt fastening to be provided with plastics apron (31), plastics apron (31) bottom surface top is provided with the recovery subassembly that drives plastics apron (31) upset.
2. The tension spring return type seat structure according to claim 1, wherein the recovery assembly comprises a top extension tube (10), a left shaft sleeve (11), a right shaft sleeve (13), a butt joint tube (12) and a guide assembly, the side surface of the top extension tube (10) is rotatably arranged on the top of the bottom surface of the plastic base (3), and tension spring blocking sheets (15) are vertically arranged on the top of the left shaft sleeve (11).
3. The tension spring return type seat structure according to claim 2, wherein a left shaft sleeve (11) is arranged at the top of the side face of the top extension tube (10), a right shaft sleeve (13) is fixedly arranged on the right side face of the left shaft sleeve (11) through bolts, a butt joint tube (12) is accommodated between the left shaft sleeve (11) and the right shaft sleeve (13), and a guide assembly is movably inserted into the butt joint tube (12) along the vertical direction.
4. The tension spring return type seat structure according to claim 1, wherein a bottom connecting lug (51) is fixedly arranged at the middle position of the bottom of the support return frame (5), the bottom connecting lug (51) is rotatably connected with one end of the damping rod (8), a top connecting lug (32) is rotatably arranged at the top of the damping rod (8), and the top connecting lug (32) is fixedly arranged at the middle position of the bottom of the plastic base (3).
5. A tension spring return type seat structure according to claim 3, characterized in that the guide assembly comprises a guide column (17), a top pressing block (16) and a bottom pressing block (18), and the side surface of the chair stand (1) is provided with a first connecting block (20) and a second connecting block (21) at equal intervals along the vertical direction.
6. The tension spring return type seat structure according to claim 5, wherein the top pressing block (16) is fixedly connected with the side surface of the first connecting block (20) by adopting a screw, the side surface of the bottom pressing block (18) is fixedly connected with the side surface of the second connecting block (21) by adopting a screw, a guide column (17) is fixedly clamped between the top pressing block (16) and the first connecting block (20), and the bottom of the guide column (17) is fixedly clamped between the bottom pressing block (18) and the second connecting block (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322195032.9U CN220607752U (en) | 2023-08-15 | 2023-08-15 | Tension spring return type chair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322195032.9U CN220607752U (en) | 2023-08-15 | 2023-08-15 | Tension spring return type chair structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220607752U true CN220607752U (en) | 2024-03-19 |
Family
ID=90213075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322195032.9U Active CN220607752U (en) | 2023-08-15 | 2023-08-15 | Tension spring return type chair structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220607752U (en) |
-
2023
- 2023-08-15 CN CN202322195032.9U patent/CN220607752U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |