Sofa chair with adjustable backrest angle
By designing components and structures that can adjust the angle of the backrest on the sofa chair, the problem of insufficient comfort of the sofa chair is solved, and flexible adjustment and comfortable support of the backrest angle are achieved, improving the user's user experience.
Patent Information
- Application Number
- CN202422307530.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-21
AI Technical Summary
The existing sofa chairs lack adjustment functions and cannot be adjusted according to user needs, resulting in insufficient comfort, especially in long-term sitting postures, which may cause waist discomfort.
A sofa chair with adjustable backrest angle is designed. Through the combination of supporting frames, protective frames, connecting rods, guide frames, fixing plates, backrest frames and other components, the spring and clamping structures are used to adjust and fix the backrest angle, and provide comfortable support with sponge plates and brackets.
It realizes flexible adjustment of the backrest angle, improves user comfort, reduces waist and neck pressure, prevents the cushion from sliding or deforming, and enhances the user experience.
Smart Images
Figure CN223275157U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of furniture, in particular to a sofa chair with an adjustable backrest angle. Background Art
[0002] A sofa chair is a piece of furniture that combines the features of a sofa and a chair. It is usually more spacious and comfortable than an ordinary chair, and its design focuses more on leisure and relaxation. A sofa chair can be used alone or as part of a sofa combination.
[0003] Many existing sofa chairs do not have adjustment functions, which often means that users cannot adjust them according to their needs, making it difficult to achieve the highest level of comfort. This is especially true when users sit on sofa chairs for a long time and maintain the same sitting posture. If the sofa chair does not provide proper lumbar support, it may cause lumbar discomfort to the user.
[0004] Therefore, need to design a sofa chair with adjustable backrest angle. Utility Model Content
[0005] In order to overcome the disadvantage that sofa chairs do not have an adjustment function and cannot be adjusted according to one's own needs, thereby making it difficult to achieve the highest comfort, the utility model provides a sofa chair with an adjustable backrest angle.
[0006] The technical solution of the utility model is: a sofa chair with adjustable backrest angle, comprising a support frame, a protective frame, a connecting rod, a guide frame, a first spring, a fixing plate, a backrest frame, a bracket and a cushion, both sides of the support frame are connected to the protective frame, the protective frame is provided with a connecting rod, the support frame is provided with a guide frame, the guide frame is slidably connected to the fixing plate, two first springs are provided between the guide frame and the fixing plate, the connecting rod is rotatably connected to the backrest frame, a plurality of matching grooves are evenly spaced on the backrest frame, and the fixing plate is snap-fitted with the matching grooves, brackets are provided on both sides of the connecting rod, and a cushion is placed between the support frame and the backrest frame.
[0007] Furthermore, it also includes a guide rod, a sliding block, a second spring, a tension spring and a limit plate. Guide rods are provided on both sides of the support frame and both sides of the backrest frame. Sliding blocks are slidably provided on the four guide rods. A second spring is connected between the two sliding blocks and the support frame. A tension spring is connected between the two sliding blocks and the backrest frame. Limit plates are connected to the four sliding blocks, and the limit plates are in contact with the seat cushion.
[0008] Furthermore, it also includes an extension pad, a clamping rod, a third spring and a clamping block. The clamping rods are slidably connected to both sides of the backrest frame, and the two clamping rods are provided with extension pads. The clamping blocks are slidably provided on both sides of the backrest frame, and the third spring is connected between the clamping block and the backrest frame.
[0009] Furthermore, it also includes a protective plate and a sponge plate. The two brackets are both connected with the protective plate by snap-fitting, and the two brackets are both provided with a sponge plate.
[0010] Furthermore, it also includes a collection frame, and the collection frame is slidably connected to the support frame.
[0011] Furthermore, the upper side of the backrest frame is arc-shaped.
[0012] The beneficial effects of the utility model are as follows: when the user rotates the backrest frame, the fixing plate moves downward, the first spring is compressed, and the fixing plate is disengaged from the matching groove, thereby adjusting the angle of the backrest frame. After adjusting to a suitable position, the fixing plate is driven to reset under the reset action of the first spring, thereby fixing and limiting the backrest frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0014] Figure 2 It is a three-dimensional structural diagram of the supporting frame, protective frame, protective plate and other components of the utility model.
[0015] Figure 3 It is a partial cross-sectional view of the connecting rod, guide frame, fixing plate and other components of the utility model.
[0016] Figure 4 It is a partial cross-sectional view of the backrest frame, bracket, seat cushion and other components of the utility model.
[0017] Figure 5 It is a partial cross-sectional view of the seat cushion, guide rod, sliding block and other components of the utility model.
[0018] Figure 6 It is a partial cross-sectional view of the backrest frame, second spring, limit plate and other components of the utility model.
[0019] Figure 7 It is a partial cross-sectional view of the backrest frame, extension pad, clamping rod and other components of the utility model.
[0020] Figure 8 It is a partial cross-sectional view of the components such as the connecting rod, the third spring and the clamping block of the utility model.
[0021] Figure 9 It is a partial cross-sectional view of the supporting frame, collecting frame and other parts of the utility model.
[0022] In the accompanying drawings: 1-support frame, 2-protective frame, 3-connecting rod, 4-guide frame, 5-first spring, 6-fixed plate, 7-backrest frame, 71-matching groove, 8-bracket, 9-cushion, 10-protective plate, 11-sponge plate, 12-guide rod, 13-sliding block, 14-second spring, 141-tension spring, 15-limiting plate, 16-extension pad, 17-clamping rod, 18-third spring, 19-clamping block, 20-collection frame. DETAILED DESCRIPTION
[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] Embodiment: A sofa chair with adjustable backrest angle, such as Figure 1-Figure 7 As shown, it includes a support frame 1, a protective frame 2, a connecting rod 3, a guide frame 4, a first spring 5, a fixing plate 6, a backrest frame 7, a bracket 8 and a cushion 9. The left and right sides of the support frame 1 are connected to the protective frame 2, and the rear side of the protective frame 2 is fixedly connected to the connecting rod 3. A guide frame 4 is welded on the support frame 1, and a fixing plate 6 is slidably connected to the guide frame 4. Two first springs 5 are fixedly connected between the guide frame 4 and the fixing plate 6. The backrest frame 7 is rotatably connected to the connecting rod 3. The upper side of the backrest frame 7 is arc-shaped, which better conforms to the ergonomic principles, thereby improving the comfort of the user. A plurality of matching grooves 71 are evenly spaced on the backrest frame 7, and the fixing plate 6 is snap-fitted with the matching grooves 71. Brackets 8 are welded on the left and right sides of the connecting rod 3. A cushion 9 is placed between the support frame 1 and the backrest frame 7, and the protective frame 2 facilitates limiting the seat cushion 9.
[0025] like Figure 4-Figure 6 As shown, it also includes a guide rod 12, a sliding block 13, a second spring 14, a tension spring 141 and a limit plate 15. The left and right sides of the front side of the support frame 1 and the left and right sides of the backrest frame 7 are fixedly connected with the guide rod 12, and the sliding blocks 13 are slidably set on the four guide rods 12. The second spring 14 is fixedly connected between the two sliding blocks 13 and the support frame 1, and the tension spring 141 is fixedly connected between the two sliding blocks 13 and the backrest frame 7. The four sliding blocks 13 are welded with a limit plate 15, and the limit plate 15 is in contact with the seat cushion 9.
[0026] like Figure 7 and Figure 8 As shown, it also includes an extension pad 16, a clamping rod 17, a third spring 18 and a clamping block 19. The left and right sides of the backrest frame 7 are slidably connected with the clamping rod 17. The two clamping rods 17 are riveted with extension pads 16. The left and right sides of the backrest frame 7 are slidably provided with a clamping block 19. The third spring 18 is fixedly connected between the clamping block 19 and the backrest frame 7, and the clamping block 19 is clamped and matched with the clamping rod 17.
[0027] like Figure 1、 Figure 2 and Figure 4 As shown, a protective plate 10 and a sponge plate 11 are also included. The two brackets 8 are both snap-connected with the protective plate 10 , and the two brackets 8 are both fixedly connected with the sponge plate 11 .
[0028] like Figure 9 As shown, a collection frame 20 is also included. The support frame 1 is slidably connected to the collection frame 20. The collection frame 20 is convenient for storing furniture or toys, etc., and plays a storage role.
[0029] When the user needs to adjust the sofa chair, the user pulls the backrest frame 7 backward, the fixing plate 6 moves downward, the guide frame 4 plays a guiding role, the first spring 5 is compressed, the fixing plate 6 is disengaged from the matching groove 71, and after the backrest frame 7 is rotated to a suitable angle, the user stops rotating the backrest frame 7. Subsequently, the fixing plate 6 is aligned with the matching groove 71, and the fixing plate 6 is driven to reset upward under the reset action of the first spring 5. The fixing plate 6 is engaged with the matching groove 71 again to limit the backrest frame 7. The user can sit on the seat cushion 9 to rest, and the bracket 8 allows the user to place his hands comfortably. The sponge plate 11 has a certain elasticity and can provide better touch and cushioning effect, making the user feel more comfortable when resting his arms. The protective plate 1 0 can limit the seat cushion 9 to prevent the seat cushion 9 from moving and offsetting when the backrest frame 7 is adjusted. At the same time, the user will adopt different sitting postures when using the sofa chair, and may encounter the problem of the seat cushion 9 sliding or deforming. The limiting plate 15 can fix the four corners of the seat cushion 9 to prevent the seat cushion 9 from sliding or deforming. At the same time, when the seat cushion 9 needs to be disassembled and cleaned, the user pulls the limiting plate 15 outward, the sliding block 13 moves and the second spring 14 is compressed and the tension spring 141 is pulled, the limiting plate 15 no longer limits the seat cushion 9, the user takes the seat cushion 9 out for cleaning, and then the user can loosen the limiting plate 15, and the limiting plate 15 is reset under the reset action of the second spring 14 and the tension spring 141. The seat cushion 9 needs to be placed When the user returns to the support frame 1 and the backrest frame 7, the user pulls the limit plate 15 outward, whereupon the sliding block 13 also moves outward, the second spring 14 is compressed, and the tension spring 141 is pulled, whereupon the seat cushion 9 is placed. The user releases the limit plate 15, and the limit plate 15 is reset under the reset action of the second spring 14 and the tension spring 141. The limit plate 15 contacts and limits the seat cushion 9, thereby preventing the seat cushion 9 from sliding. At the same time, the user's head can be placed on the extension pad 16, reducing the pressure on the neck when sitting for a long time, thereby improving comfort. When the extension pad 16 is no longer needed, the user pulls the extension pad 16 upward and drives the connecting rod 17, and the connecting rod 17 is provided with a groove. Thereupon, the block 19 moves inward, and the third spring 18 is compressed. The block 19 is no longer engaged with the groove on the clamping rod 17, and the clamping rod 17 is separated from the backrest frame 7. The user stores the extension pad 16. When the backrest frame 7 needs to be reset, the user pushes the backrest frame 7 upwards. After the backrest frame 7 is rotated to the initial angle, the user stops rotating the backrest frame 7. When the extension pad 16 is needed, the user inserts the clamping rod 17 onto the backrest frame 7, the block 19 slides inward, the third spring 18 is compressed, and after the clamping rod 17 slides to the appropriate position, the reset action of the third spring 18 drives the block 19 to reset, and then the block 19 contacts the groove on the clamping rod 17. The block 19 can limit the clamping rod 17, and the extension pad 16 can be used. When the angle of the backrest frame 7 needs to be adjusted,Repeat the above steps.
[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A sofa chair with an adjustable backrest angle, comprising a support frame (1), a protective frame (2), a connecting rod (3), a backrest frame (7), a bracket (8) and a cushion (9), wherein both sides of the support frame (1) are connected to the protective frame (2), the connecting rod (3) is provided on the protective frame (2), the backrest frame (7) is rotatably connected to the connecting rod (3), a plurality of matching grooves (71) are evenly spaced on the backrest frame (7), the bracket (8) is provided on both sides of the connecting rod (3), and the cushion (9) is placed between the support frame (1) and the backrest frame (7), characterized in that: The support frame (1) further comprises a guide frame (4), a first spring (5) and a fixed plate (6); the guide frame (4) is provided on the support frame (1); the fixed plate (6) is slidably connected to the guide frame (4); two first springs (5) are provided between the guide frame (4) and the fixed plate (6); and the fixed plate (6) is engaged with the matching groove (71).
2. The sofa chair with adjustable backrest angle according to claim 1, characterized in that: The invention also includes a guide rod (12), a sliding block (13), a second spring (14), a tension spring (141) and a limit plate (15). The guide rods (12) are provided on both sides of the support frame (1) and both sides of the backrest frame (7). The sliding blocks (13) are slidably provided on the four guide rods (12). The second spring (14) is connected between the two sliding blocks (13) and the support frame (1). The tension spring (141) is connected between the two sliding blocks (13) and the backrest frame (7). The limit plates (15) are connected to the four sliding blocks (13).
3. The sofa chair with adjustable backrest angle according to claim 1, characterized in that: The backrest frame (7) further comprises an extension pad (16), a clamping rod (17), a third spring (18) and a clamping block (19); both sides of the backrest frame (7) are slidably connected to the clamping rod (17); the extension pad (16) is provided on the two clamping rods (17); both sides of the backrest frame (7) are slidably provided with the clamping block (19); and the third spring (18) is connected between the clamping block (19) and the backrest frame (7).
4. The sofa chair with adjustable backrest angle according to claim 1, characterized in that: It also includes a protective plate (10) and a sponge plate (11). The two brackets (8) are both connected to the protective plate (10) by snapping, and the two brackets (8) are both provided with the sponge plate (11).
5. The sofa chair with adjustable backrest angle according to claim 1, characterized in that: It also includes a collecting frame (20), and the collecting frame (20) is slidably connected to the supporting frame (1).
6. The sofa chair with adjustable backrest angle according to claim 1, characterized in that: The upper side of the backrest frame (7) is in an arc shape.