Backrest manual translation structure
By designing the manual translation structure of the sofa backrest, the sliding rail unit and limiting assembly can be used to achieve movement and depth adjustment of the backrest bracket, solving the problem of immovable and adjustment of the existing sofa backrest and improving the functionality and practicality of the sofa.
Patent Information
- Application Number
- CN202421809428.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing sofa backrest is generally fixed, not movable, and the front and rear depth distance cannot be adjusted, which cannot meet consumers' needs for the upgrade of sofa functionality.
A manual translation structure of the backrest is designed, which is slidally connected to the slide rail unit through the backrest bracket, and combines the limiting assembly and rack to achieve front and rear sliding and depth adjustment of the backrest bracket.
The movement and depth adjustment of the sofa backrest is realized, meeting consumers' needs for sitting, practicality and functionality. It has a simple structure and strong practicality.
Smart Images
Figure CN222804103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household furniture, and more specifically to a manual translation structure of a backrest. Background Art
[0002] In the current market, sofa backrests are generally fixed, immovable, and cannot adjust the front-to-back depth. This type of backrest iron frame has a simple structure and a single function. With the progress of the times and the upgrading of consumers' requirements for the functionality of sofas, consumers are expected to provide sofas with more than just a single requirement for sitting. They have higher requirements for sitting feeling, practicality, functionality, stress relief, comfort, and a sense of technology. Based on this, the utility model proposes a manual translation structure for the backrest. Utility Model Content
[0003] In order to overcome the problem that the existing sofa backrest is fixed, cannot be moved, and cannot adjust the front and rear depth distance of the backrest, the utility model provides a manual translation structure of the backrest.
[0004] The technical solution of the utility model is as follows:
[0005] A manual translation structure of a backrest, applied to a sofa, comprises a backrest bracket and also comprises:
[0006] A slide rail unit, the backrest bracket is slidably connected to the slide rail unit;
[0007] A limit assembly, the limit assembly comprising a limit block and an elastic member, the elastic member abutting against the limit block, the limit block being movably connected to the backrest bracket, and being used to enable the limit block to move relative to the backrest bracket;
[0008] The limit block moves along the forward adjustment direction or the backward direction. When the limit block moves in the forward adjustment direction, the protrusion of the limit block and the rack of the slide rail unit repeat the locking action and the unlocking action. When the limit block moves in the backward direction, the protrusion of the limit block and the rack of the slide rail unit are always in the unlocking action.
[0009] According to the utility model of the above scheme, the limit block is provided with a first connecting hole and a second connecting hole for connecting with the backrest bracket, the first connecting hole is used to enable the limit block to move horizontally relative to the backrest bracket, and the second connecting hole is used to enable the limit block to move horizontally or vertically relative to the backrest bracket.
[0010] According to the utility model of the above scheme, an upward moving block is provided at the front end of the rack, and a downward moving block is provided at the rear end of the rack, and the upward moving block and the downward moving block both correspond to the positions of the limit block.
[0011] According to the utility model of the above scheme, the top end of the upward moving block is inclined toward the front end of the rack, and the corresponding position of the limit block is provided with a first inclined surface adapted to the upward moving block.
[0012] According to the above-mentioned solution of the utility model, the height of the upward moving block is not less than the height of the protrusion.
[0013] According to the utility model of the above scheme, the bottom end of the downward moving block is inclined toward the rear end of the rack, and the corresponding position of the limit block is provided with a second inclined surface adapted to the downward moving block.
[0014] According to the above-mentioned solution of the utility model, the surface of the protrusion of the limit block facing the front end of the rack is an inclined surface, and the surface facing the rear end of the rack is a flat surface.
[0015] According to the above-mentioned solution of the utility model, the elastic member is arranged above the limit block, and one end of the elastic member abuts against the backrest bracket, and the other end of the elastic member abuts against the limit block.
[0016] According to the utility model of the above scheme, the slide rail unit includes a guide rail and a slider, the guide rail is arranged on both sides of the backrest bracket, the backrest bracket is connected to the slider and slides along the guide rail driven by the slider.
[0017] According to the above-mentioned solution of the utility model, the rack is arranged on one side or both sides of the backrest bracket.
[0018] The utility model according to the above scheme has the beneficial effect that the utility model is connected with the slide rail unit through sliding connection through the backrest bracket, and the backrest bracket slides forward and backward along the slide rail unit to realize movement, and a rack is arranged inside the slide rail unit to cooperate with the protrusion of the limit block to realize the locking and unlocking function during the sliding process. The user can change the depth distance and position of the sofa backrest as needed, and the structure is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of one state of the utility model;
[0020] Figure 2 A cross-sectional view of a state of the utility model;
[0021] Figure 3 It is a structural schematic diagram of another state of the utility model;
[0022] Figure 4 It is a schematic diagram of the explosion structure of another state of the utility model;
[0023] Figure 5 It is a structural schematic diagram of the limit block of the utility model.
[0024] In the drawings, the reference numerals are as follows:
[0025] 1. Backrest bracket; 2. Slide rail unit; 21. Rack; 22. Upward block; 23. Downward block; 24. Guide rail; 25. Slider; 3. Limiting assembly; 31. Limiting block; 311. Protrusion; 312. First connecting hole; 313. Second connecting hole; 314. First inclined surface; 315. Second inclined surface; 32. Elastic member. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. Terms such as "setting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "bottom", etc. are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.
[0028] It should be noted that in the current market, sofa backrests are generally fixed, non-movable, and non-adjustable in depth. Such backrest iron frames have simple structures and single functions. With the progress of the times and the upgrading of consumers' requirements for the functionality of sofas, consumers are expected to provide more than just a single requirement for sitting on sofas. They have higher requirements for sitting feeling, practicality, functionality, stress relief, comfort, and a sense of technology.
[0029] like Figure 1-Figure 5 As shown, this embodiment provides a manual translation structure of the backrest, which is slidably connected to the slide rail unit 2 through the backrest bracket 1. The backrest bracket 1 slides back and forth along the slide rail unit 2 to achieve movement. A rack 21 is arranged inside the slide rail unit 2 to cooperate with the protrusion 311 of the limit block 31 to achieve locking and unlocking functions during the sliding process. The user can change the depth distance and position the sofa backrest as needed. The structure is simple and practical.
[0030] Specifically, the manual translation structure of the backrest is applied on a sofa, and includes a backrest bracket 1, a slide rail unit 2 and a limit assembly 3. The backrest bracket 1 is slidably connected to the slide rail unit 2, and the backrest bracket 1 slides forward and backward along the slide rail unit 2.
[0031] The limit assembly 3 includes a limit block 31 and an elastic member 32. The elastic member 32 abuts against the limit block 31. The elastic member 32 will continue to press the limit block 31 downward, so that the limit block 31 automatically resets when it encounters the gap in the rack 21 after moving up, so that when the protrusion 311 of the limit block 31 moves between the racks 21 of the slide rail unit 2 along the forward adjustment direction under the push of an external force, the locking action and the unlocking action will be repeated, thereby improving the convenience and stability of use. It should be noted that the locking action is when the protrusion 311 of the limit block 31 is placed in the gap of the rack 21. The unlocking action is when the protrusion 311 of the limit block 31 is out of the gap of the rack 21.
[0032] The limit block 31 is movably connected to the backrest bracket 1, and is used to enable the limit block 31 to move relative to the backrest bracket 1. When the limit block 31 moves along the forward adjustment direction, the locking action and the unlocking action are repeated, and the limit block 31 moves up and down relative to the backrest bracket 1; when switching from the forward adjustment direction to the backward direction, and from the backward direction to the forward adjustment direction, the limit block 31 moves left and right relative to the backrest bracket 1.
[0033] The specific working process is: the limit block 31 moves along the forward adjustment direction or the backward direction. When the limit block 31 moves in the forward adjustment direction, the protrusion 311 of the limit block 31 and the rack 21 of the slide rail unit 2 repeat the locking action and the unlocking action. When the limit block 31 moves in the backward direction, the protrusion 311 of the limit block 31 and the rack 21 of the slide rail unit 2 are always in the unlocking action.
[0034] In one embodiment, the limit block 31 is provided with a first connection hole 312 and a second connection hole 313 for connecting with the backrest bracket 1, and two screws are respectively passed through the first connection hole 312 and the second connection hole 313 to be movably connected with the backrest bracket 1. The first connection hole 312 is used to make the limit block 31 move horizontally relative to the backrest bracket 1, and the second connection hole 313 is used to make the limit block 31 move horizontally or vertically relative to the backrest bracket 1. The first connection hole 312 is close to the front end of the rack 21 and is located at the front end of the limit block 31, and the second connection hole 313 is close to the rear end of the rack 21 and is located at the rear end of the limit block 31. When moving along the forward adjustment direction, the relative position of the first connecting hole 312 and the screw in the first connecting hole 312 remains unchanged, and the screw in the second connecting hole 313 moves up and down in the second connecting hole 313; when switching from the forward adjustment direction to the backward direction, the screw in the first connecting hole 312 moves to the leftmost side of the first connecting hole 312, and the screw in the second connecting hole 313 moves to the leftmost side of the second connecting hole 313; when switching from the backward direction to the forward adjustment direction, the screw in the first connecting hole 312 moves to the rightmost side of the first connecting hole 312, and the screw in the second connecting hole 313 moves to the rightmost side of the second connecting hole 313.
[0035] In one embodiment, an upward moving block 22 is disposed at the front end of the rack 21 , and a downward moving block 23 is disposed at the rear end of the rack 21 . Both the upward moving block 22 and the downward moving block 23 correspond to the positions of the limiting block 31 .
[0036] Preferably, the top of the upper block 22 is inclined toward the front end of the rack 21, and the corresponding part of the limit block 31 is provided with a first inclined surface 314 adapted to the upper block 22. When switching from the forward adjustment direction to the backward direction, the inclined direction of the upper block 22 is consistent with the inclined direction of the first inclined surface 314, and the limit block 31 will limit the forward movement of the limit block 31 to a certain extent under the action of the upper block 22, but the slide rail unit 2 continues to move forward, so that the screw in the first connection hole 312 moves to the leftmost side of the first connection hole 312, and the screw in the second connection hole 313 moves to the leftmost side of the second connection hole 313. At this time, the limit block 31 will not move downward under the contact of the elastic member 32, and the protrusion 311 of the limit block 31 and the rack 21 of the slide rail unit 2 are always in an unlocking action.
[0037] The height of the upward moving block 22 is not less than the height of the protrusion 311 , so as to ensure that the protrusion 311 can smoothly detach from the rack 21 of the slide rail unit 2 .
[0038] Preferably, the bottom end of the lower moving block 23 is inclined toward the rear end of the rack 21, and the corresponding part of the limit block 31 is provided with a second inclined surface 315 adapted to the lower moving block 23. When switching from the backward direction to the forward direction, the inclined direction of the lower moving block 23 is consistent with the inclined direction of the second inclined surface 315. Under the action of the lower moving block 23, the limit block 31 will limit the backward movement of the limit block 31 to a certain extent, but the slide rail unit 2 continues to move backward, so that the screw in the first connecting hole 312 moves to the rightmost side of the first connecting hole 312, and the screw in the second connecting hole 313 moves to the rightmost side of the second connecting hole 313. At this time, the limit block 31 moves downward under the contact of the elastic member 32, and the screw in the second connecting hole 313 moves to the uppermost side of the second connecting hole 313. Under the action of external force, the locking action and the unlocking action can be repeated.
[0039] In one embodiment, the surface of the protrusion 311 of the limit block 31 facing the front end of the rack 21 is an inclined surface, and the surface facing the rear end of the rack 21 is a flat surface. The purpose of the setting is to ensure that the limit block 31 can only move along the forward adjustment direction. When the forward adjustment direction is not converted to the backward direction, the limit block 31 will not move backward, ensuring that when the user leans on the backrest bracket 1, the backrest will not move backward, thereby ensuring the use effect of the backrest. It should be noted that the forward adjustment direction is the direction of reducing the depth of the backrest, and the backward direction is the direction of increasing the depth of the backrest.
[0040] In one embodiment, the elastic member 32 is disposed above the limit block 31, and one end of the elastic member 32 abuts against the backrest bracket 1, and the other end of the elastic member 32 abuts against the limit block 31. The purpose of the arrangement is to ensure that the elastic member 32 can always abut against the limit block 31 downward, and under the action of external force, the protrusion 311 of the limit block 31 and the rack 21 of the slide rail unit 2 can repeat the locking action and the unlocking action.
[0041] In one embodiment, the slide rail unit 2 includes a guide rail 24 and a slider 25. The guide rail 24 is disposed on both sides of the backrest bracket 1. The backrest bracket 1 is connected to the slider 25 and slides along the guide rail 24 driven by the slider 25. The guide rail 24 is installed on both sides of the sofa frame to ensure parallelism and verticality with the backrest bracket 1, thereby ensuring smoothness and stability of sliding.
[0042] In one embodiment, the rack 21 is disposed on one or both sides of the backrest bracket 1. If the sofa design allows and the space is limited, the rack 21 can be disposed only on one side of the backrest bracket 1. This design simplifies the structure and manufacturing process, but may require more precise adjustment and balancing to ensure the stability of the backrest bracket 1 during the sliding process.
[0043] In order to improve stability and balance, the rack 21 can be set on both sides of the backrest bracket 1. This design increases the contact area with the protrusion 311 of the limit block 31, making the locking and unlocking actions more reliable. At the same time, it also makes the backrest bracket 1 more stable during the sliding process, reducing the possibility of shaking and deviation.
[0044] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.
[0045] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A manual translation structure of a backrest, applied to a sofa, comprising a backrest bracket, characterized in that: Also includes: A slide rail unit, the backrest bracket is slidably connected to the slide rail unit; A limit assembly, the limit assembly comprising a limit block and an elastic member, the elastic member abutting against the limit block, the limit block being movably connected to the backrest bracket, and being used to enable the limit block to move relative to the backrest bracket; The limit block moves along the forward adjustment direction or the backward direction. When the limit block moves in the forward adjustment direction, the protrusion of the limit block and the rack of the slide rail unit repeat the locking action and the unlocking action. When the limit block moves in the backward direction, the protrusion of the limit block and the rack of the slide rail unit are always in the unlocking action.
2. The manual translation structure of the backrest according to claim 1, characterized in that: The limit block is provided with a first connecting hole and a second connecting hole for connecting with the backrest bracket. The first connecting hole is used to enable the limit block to move horizontally relative to the backrest bracket, and the second connecting hole is used to enable the limit block to move horizontally or vertically relative to the backrest bracket.
3. The manual translation structure of the backrest according to claim 2, characterized in that: An upward moving block is arranged at the front end of the rack, and a downward moving block is arranged at the rear end of the rack. Both the upward moving block and the downward moving block correspond to the positions of the limit block.
4. The manual translation structure of the backrest according to claim 3, characterized in that: The top end of the upward moving block is inclined toward the front end of the rack, and the corresponding position of the limit block is provided with a first inclined surface adapted to the upward moving block.
5. The manual translation structure of the backrest according to claim 4, characterized in that: The height of the upward moving block is not less than the height of the protrusion.
6. A manual translation structure of a backrest according to claim 3, 4 or 5, characterized in that: The bottom end of the downward moving block is inclined toward the rear end of the rack, and a second inclined surface adapted to the downward moving block is provided at a corresponding position of the limit block.
7. A manual translation structure for a backrest according to claim 1, 2, 3, 4 or 5, characterized in that: The surface of the protrusion of the limiting block facing the front end of the rack is an inclined surface, and the surface facing the rear end of the rack is a flat surface.
8. A manual translation structure for a backrest according to claim 1, 2, 3, 4 or 5, characterized in that: The elastic member is arranged above the limiting block, and one end of the elastic member abuts against the backrest bracket, and the other end of the elastic member abuts against the limiting block.
9. A manual translation structure for a backrest according to claim 1, 2, 3, 4 or 5, characterized in that: The slide rail unit comprises a guide rail and a slider. The guide rail is arranged on both sides of the backrest bracket. The backrest bracket is connected to the slider and slides along the guide rail driven by the slider.
10. The manual translation structure of the backrest according to claim 9, characterized in that: The rack is arranged on one side or both sides of the backrest bracket.