Sofa with seat-backrest linkage structure
By designing the seat-rest linkage structure in the sofa, the problem of the difference in the position of the backrest of the sofa is folded backward and the seat cushion is achieved, and a better sense of comfort is achieved.
Patent Information
- Application Number
- CN202420935966.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-30
AI Technical Summary
After the backrest of the sofa is folded backward, the person's breeze will move forward under the inertia of the backrest, resulting in a different position between the breeze and the cushion. When the person lies on the seat, the breeze cannot fully fit the cushion, resulting in a poor sense of comfort.
A sofa with a seat-rest linkage structure is designed. The bottom of the backrest is equipped with a movable section and a movable cavity hinged. One end of the cushion is equipped with a sliding section and a movable cavity slidingly. When the backrest is rotated backward, the push end drives the cushion to move, so that it rotates along the backrest, tracking the user's breeze position and avoiding position difference.
Through the seat-rest linkage structure, the cushion can be moved after the backrest is rotated, ensuring that the breeze position is consistent with the seat cushion and improve the comfort of the sofa.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the field of sofas, in particular to a sofa with a seat and back linkage structure. Background Art
[0002] With the development of sofas, sofas can achieve more and more functions, and people spend more and more time on sofas, so the comfort requirements of sofas are getting higher and higher. When people rest on sofas, they lie on the seat and are used to folding the backrest backwards. However, when the backrest of the sofas currently on the market is folded backwards, the buttocks of the person will move forward under the inertia of the backrest, so there is a position difference between the buttocks and the cushion. When people lie on the seat, the buttocks cannot completely fit the cushion, resulting in poor comfort. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a sofa with a seat-back linkage structure, aiming to solve the technical problem that after the sofa backrest is folded backwards, the buttocks of a person will move forward under the inertia of the backrest, so there is a position difference between the buttocks and the seat cushion. When a person lies on the seat, the buttocks cannot completely fit the seat cushion, resulting in poor comfort.
[0004] The technical solution of the utility model to solve the above technical problems is:
[0005] A sofa with a seat-back linkage structure comprises a base frame, an armrest seat is provided on the top of the base frame, a movable cavity is opened on one side of the armrest seat, a backrest and a seat cushion are provided in the movable cavity, a movable section is provided at the bottom of the backrest, the movable section is hinged to the inside of the movable cavity, a sliding section is provided at one end of the seat cushion, the sliding section is slidably matched with the movable cavity, a passive end is provided at one end of the sliding section, a pushing end is provided at the bottom of the movable section, a first pushing surface is provided on one side of the pushing end, the first pushing surface is in conflict with the passive end, a second pushing surface is provided at the bottom of the pushing end, the second pushing surface is located below the first pushing surface, and the second pushing surface faces the passive end.
[0006] When the backrest rotates backward, the backrest drives the pushing end to rotate, and the first pushing surface of the pushing end rotates along the passive end of the seat cushion. When the second pushing surface of the pushing end rotates to the passive end of the seat cushion, since the second pushing surface is located below the first pushing surface, the second pushing surface contacts the passive end of the seat cushion, which drives the passive end of the seat cushion to move, thereby driving the seat cushion to move, so that after the backrest rotates, the seat cushion can move along the rotation of the backrest, thereby facilitating the tracking of the user's hip position and avoiding a position difference between the user's hip position and the seat cushion after the backrest rotates.
[0007] Furthermore, in the present application, guide sliders are provided on both sides of the sliding section, and guide grooves are provided on both sides of the movable cavity. The guide sliders on both sides of the sliding section are respectively slidably matched with the guide grooves on both sides of the movable cavity.
[0008] When the second pushing surface of the pushing end drives the passive end of the seat cushion to move, the passive end drives the sliding section to move, and the guide sliders on both sides of the sliding section respectively slide with the guide slide grooves on both sides of the active cavity, thereby facilitating the guiding of the moving position of the seat cushion and preventing the seat cushion from leaving the active cavity.
[0009] Furthermore, in the present application, a return spring is provided in the guide slide groove, and one end of the return spring is connected to the guide slide block.
[0010] When the second pushing surface of the pushing end drives the passive end of the seat cushion to move, the guide slider of the sliding section drives the return spring to extend. At this time, after the backrest is fixed by the clamping structure of the prior art, the return spring will not shrink; when the clamping structure of the prior art is separated from the fixation of the backrest, the return spring shrinks, the return spring drives the sliding section to move, and the sliding section drives the passive end to move, so that the passive end drives the second pushing surface of the pushing end to rotate, thereby allowing the passive end to resume contact with the first pushing surface, so that the backrest can return to a sitting position.
[0011] Furthermore, in the present application, a first fixing column is provided on one side of the guide slider, and first latching protrusions are provided on both sides of the first fixing column. The first fixing column is internally inserted into one end of the return spring, so that the first latching protrusions on both sides of the first fixing column are internally latched into one end of the return spring.
[0012] Furthermore, in the present application, a second fixing column is provided in the guide groove, and second latching protrusions are provided on both sides of the second fixing column. The second fixing column is internally plugged into the other end of the reset spring, so that the second latching protrusions on both sides of the second fixing column are internally latched into the other end of the reset spring.
[0013] Furthermore, in the present application, a guide piston rod is provided on one side of the base frame, a connecting frame is provided at one end of the guide piston rod, and the connecting frame is provided at the bottom of the seat cushion.
[0014] Furthermore, in the present application, a first fixing hole is opened on one side of the movable section, and a second fixing hole is opened on the other side of the armrest seat, the second fixing hole is connected to the movable cavity, a first fixing bolt is passed through the second fixing hole, and the insertion end of the first fixing bolt is threadedly matched with the first fixing hole.
[0015] Furthermore, in the present application, a third fixing hole is provided on the other side of the armrest seat, the third fixing hole is connected to the movable cavity, the third fixing hole is located above the second fixing hole, a second fixing bolt is passed through the third fixing hole, and the insertion end of the second fixing bolt is threadedly engaged with the first fixing hole.
[0016] Furthermore, in the present application, a plurality of movable arms are provided at the bottom of the base frame, and a movable pulley is provided at one end of the movable arm.
[0017] Furthermore, in the present application, armrest extension plates are provided on both sides of the armrest seat.
[0018] The utility model has the following beneficial effects:
[0019] When the backrest rotates backward, the backrest drives the pushing end to rotate, and the first pushing surface of the pushing end rotates along the passive end of the seat cushion. When the second pushing surface of the pushing end rotates to the passive end of the seat cushion, since the second pushing surface is located below the first pushing surface, the length of the second pushing surface is slightly longer than the length of the first pushing surface, so that after the second pushing surface collides with the passive end of the seat cushion, it will drive the passive end of the seat cushion to move, thereby driving the seat cushion to move, so that after the backrest rotates, the seat cushion can move along the rotation of the backrest, thereby facilitating the tracking of the user's hip position and avoiding a position difference between the user's hip position and the seat cushion after the backrest rotates. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the utility model.
[0021] Figure 2 It is a structural schematic diagram of the guide piston rod of the utility model.
[0022] Figure 3 It is a structural schematic diagram of the reset spring of the utility model.
[0023] Figure 4 It is a structural schematic diagram of the first pushing surface and the second pushing surface of the utility model.
[0024] Figure 5 yes Figure 3 Enlarged view of point A in the middle.
[0025] Figure 6 yes Figure 3 Enlarged view of point B in the middle.
[0026] Wherein, the reference numerals are:
[0027] 1. Base frame; 2. Armrest seat; 3. Movable cavity; 4. Backrest; 5. Push end; 6. Cushion; 7. Passive end; 8. First push surface; 9. Second push surface; 10. Guide slide groove; 11. Guide slider; 12. First fixing column; 13. First clamping protrusion; 14. Return spring; 15. Second fixing column; 16. Second clamping protrusion; 17. First fixing hole; 18. Second fixing hole; 19. Third fixing hole; 20. First fixing bolt; 21. Second fixing bolt; 22. Guide piston rod; 23. Connecting frame; 24. Movable section; 25. Sliding section; 26. Movable arm; 27. Movable pulley; 28. Armrest extension plate. DETAILED DESCRIPTION
[0028] 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.
[0029] 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.
[0030] 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.
[0031] Reference Figure 1-Figure 4 In some specific embodiments, a sofa with a seat-back linkage structure includes a base frame 1, an armrest seat 2 is provided on the top of the base frame 1, a movable cavity 3 is opened on one side of the armrest seat 2, a backrest 4 and a seat cushion 6 are provided in the movable cavity 3, a movable section 24 is provided at the bottom of the backrest 4, the movable section 24 is hinged to the inside of the movable cavity 3, a sliding section 25 is provided at one end of the seat cushion 6, the sliding section 25 is slidably matched with the movable cavity 3, a passive end 7 is provided at one end of the sliding section 25, a pushing end 5 is provided at the bottom of the movable section 24, a first pushing surface 8 is provided on one side of the pushing end 5, the first pushing surface 8 is in conflict with the passive end 7, a second pushing surface 9 is provided at the bottom of the pushing end 5, the second pushing surface 9 is located below the first pushing surface 8, and the second pushing surface 9 faces the passive end 7.
[0032] Through the above technical scheme, when the backrest 4 rotates backward, the backrest 4 drives the pushing end 5 to rotate, and the first pushing surface 8 of the pushing end 5 rotates along the passive end 7 of the seat cushion 6. When the second pushing surface 9 of the pushing end 5 rotates to the passive end 7 of the seat cushion 6, since the second pushing surface 9 is located below the first pushing surface 8, the second pushing surface 9 will contact with the passive end 7 of the seat cushion 6, and will drive the passive end 7 of the seat cushion 6 to move, thereby driving the seat cushion 6 to move, so that after the backrest 4 rotates, the seat cushion 6 can move along the rotation of the backrest 4, so as to facilitate the tracking of the user's hip position, and avoid the position difference between the user's hip position and the seat cushion 6 after the backrest 4 rotates.
[0033] In addition, the rotated position of the backrest 4 can be fixed by a clamping structure in the prior art.
[0034] Reference Figure 1-Figure 4 In some specific embodiments, guide sliders 11 are provided on both sides of the sliding section 25, and guide grooves 10 are provided on both sides of the movable cavity 3. The guide sliders 11 on both sides of the sliding section 25 are slidably matched with the guide grooves 10 on both sides of the movable cavity 3 respectively.
[0035] Through the above technical scheme, when the second pushing surface 9 of the pushing end 5 drives the passive end 7 of the seat cushion 6 to move, the passive end 7 drives the sliding section 25 to move, and the guide sliders 11 on both sides of the sliding section 25 respectively slide with the guide grooves 10 on both sides of the active cavity 3, thereby facilitating the guiding of the moving position of the seat cushion 6 and preventing the seat cushion 6 from leaving the active cavity 3.
[0036] Reference Figure 3 In some specific implementations, a return spring 14 is provided in the guide slide groove 10 , and one end of the return spring 14 is connected to the guide slider 11 .
[0037] Through the above technical scheme, when the second pushing surface 9 of the pushing end 5 drives the passive end 7 of the seat cushion 6 to move, the guide slider 11 of the sliding section 25 drives the return spring 14 to extend. At this time, after the backrest 4 is fixed by the clamping structure of the prior art, the return spring 14 will not shrink; when the clamping structure of the prior art is separated from the fixation of the backrest 4, the return spring 14 shrinks, the return spring 14 drives the sliding section 25 to move, and the sliding section 25 drives the passive end 7 to move, so that the passive end 7 drives the second pushing surface 9 of the pushing end 5 to rotate, so that the passive end 7 can resume the contact with the first pushing surface 8, so that the backrest 4 can resume the sitting state.
[0038] Reference Figure 3-Figure 6 In some specific embodiments, a first fixing column 12 is provided on one side of the guide slider 11, and first latching protrusions 13 are provided on both sides of the first fixing column 12. The first fixing column 12 is internally plugged into one end of the return spring 14, so that the first latching protrusions 13 on both sides of the first fixing column 12 are internally latched into one end of the return spring 14.
[0039] Reference Figure 3-Figure 6 In some specific embodiments, a second fixing column 15 is provided in the guide groove 10, and second latching protrusions 16 are provided on both sides of the second fixing column 15. The second fixing column 15 is internally plugged into the other end of the return spring 14, so that the second latching protrusions 16 on both sides of the second fixing column 15 are internally latched into the other end of the return spring 14.
[0040] Through the above technical solution, when the return spring 14 is extended or contracted, the first latching protrusions 13 on both sides of the first fixed column 12 are internally engaged with one end of the return spring 14, and the second latching protrusions 16 on both sides of the second fixed column 15 are internally engaged with the other end of the return spring 14, thereby fixing the two ends of the return spring 14 to prevent the return spring 14 from escaping from the guide groove 10.
[0041] Reference Figure 1-Figure 3 In some specific embodiments, a guide piston rod 22 is provided on one side of the base frame 1 , a connecting frame 23 is provided at one end of the guide piston rod 22 , and the connecting frame 23 is provided at the bottom of the seat cushion 6 .
[0042] Through the above technical solution, when the seat cushion 6 moves, the seat cushion 6 drives the guide piston rod 22 to piston, thereby facilitating the guidance of the moving position of the seat cushion 6.
[0043] Reference Figure 1-Figure 4 In some specific embodiments, a first fixing hole 17 is opened on one side of the movable section 24, and a second fixing hole 18 is opened on the other side of the armrest seat 2. The second fixing hole 18 is connected to the movable cavity 3. A first fixing bolt 20 is passed through the second fixing hole 18, and the insertion end of the first fixing bolt 20 is threadedly matched with the first fixing hole 17.
[0044] Through the above technical solution, when the second pushing surface 9 of the pushing end 5 drives the passive end 7 of the seat cushion 6 to move, the first fixing bolt 20 of the second fixing hole 18 is threadedly matched with the first fixing hole 17, thereby facilitating the fixing of the position of the backrest 4 so that the backrest 4 remains in a lying position.
[0045] Reference Figure 1-Figure 6 In some specific embodiments, a third fixing hole 19 is opened on the other side of the armrest seat 2, and the third fixing hole 19 is connected to the movable cavity 3. The third fixing hole 19 is located above the second fixing hole 18. A second fixing bolt 21 is passed through the third fixing hole 19, and the insertion end of the second fixing bolt 21 is threadedly matched with the first fixing hole 17.
[0046] Through the above technical solution, when the first pushing surface 8 of the pushing end 5 resumes contact with the passive end 7 of the cushion 6, the second fixing bolt 21 of the third fixing hole 19 is threadedly engaged with the first fixing hole 17, thereby facilitating fixing the position of the backrest 4 so that the backrest 4 maintains a sitting position.
[0047] Reference Figure 1-Figure 6 In some specific embodiments, a plurality of movable arms 26 are provided at the bottom of the base frame 1 , and a movable pulley 27 is provided at one end of the movable arm 26 .
[0048] Through the above technical solution, the movable pulley 27 is used to better move the positions of the seat cushion 6 and the backrest 4.
[0049] Reference Figure 1-Figure 3 In some specific embodiments, armrest extension plates 28 are provided on both sides of the armrest seat 2.
[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 sofa with a seat-back linkage structure, comprising a base frame, the top of which is provided with an armrest seat, characterized in that: A movable cavity is provided on one side of the armrest seat, a backrest and a seat cushion are provided in the movable cavity, a movable section is provided at the bottom of the backrest, the movable section is hinged to the inside of the movable cavity, a sliding section is provided at one end of the seat cushion, the sliding section slides with the movable cavity, a passive end is provided at one end of the sliding section, a pushing end is provided at the bottom of the movable section, a first pushing surface is provided on one side of the pushing end, the first pushing surface is in contact with the passive end, a second pushing surface is provided at the bottom of the pushing end, the second pushing surface is located below the first pushing surface, and the second pushing surface faces the passive end; guide sliders are provided on both sides of the sliding section, guide grooves are provided on both sides of the movable cavity, and guide sliders are provided on both sides of the sliding section. The guide slide block is respectively slidably matched with the guide slide grooves on both sides of the active cavity; a return spring is provided in the guide slide groove, and one end of the return spring is connected to the guide slide block; a first fixing column is provided on one side of the guide slide block, and first clamping protrusions are provided on both sides of the first fixing column, and the first fixing column and one end of the return spring are internally inserted, so that the first clamping protrusions on both sides of the first fixing column are internally engaged with one end of the return spring; a second fixing column is provided in the guide slide groove, and second clamping protrusions are provided on both sides of the second fixing column, and the second fixing column and the other end of the return spring are internally inserted, so that the second clamping protrusions on both sides of the second fixing column are internally engaged with the other end of the return spring.
2. A sofa with a seat-back linkage structure according to claim 1, characterized in that: A guide piston rod is provided on one side of the base frame, a connecting frame is provided at one end of the guide piston rod, and the connecting frame is arranged at the bottom of the seat cushion.
3. The sofa with a seat-back linkage structure according to claim 1, characterized in that: A first fixing hole is formed on one side of the movable section, and a second fixing hole is formed on the other side of the armrest seat. The second fixing hole is connected to the movable cavity, and a first fixing bolt is passed through the second fixing hole. The insertion end of the first fixing bolt is threadedly engaged with the first fixing hole.
4. The sofa with a seat-back linkage structure according to claim 3, characterized in that: A third fixing hole is provided on the other side of the armrest seat, the third fixing hole is connected to the movable cavity, the third fixing hole is located above the second fixing hole, a second fixing bolt is passed through the third fixing hole, and the insertion end of the second fixing bolt is threadedly engaged with the first fixing hole.
5. The sofa with a seat-back linkage structure according to claim 1, characterized in that: A plurality of movable arms are arranged at the bottom of the base frame, and a movable pulley is arranged at one end of the movable arm.
6. The sofa with a seat-back linkage structure according to claim 1, characterized in that: Armrest extension plates are arranged on both sides of the armrest seat.