Sofa with detachable backrest
The design of detachable backrest and automatic placement box solves the problems of inconvenient sofa transportation and unmet user needs, and achieves the convenience and comfort of the sofa.
Patent Information
- Application Number
- CN202422740144.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing sofa designs cannot be disassembled, which makes transportation and handling inconvenient. They also lack flexibility and cannot meet the needs of users of different heights and body shapes, and the internal space is underutilized.
A sofa with a detachable backrest is designed, which achieves flexibility in head and neck support and item storage through an adjustable headrest and an automatically pop-up storage box.
It enables easy disassembly and transportation of the sofa, provides personalized head and neck support and enhanced storage space, and improves the user experience.
Smart Images
Figure CN223438177U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sofa production technical field especially relates to a detachable backrest sofa. BACKGROUND
[0002] Sofa is one of common furniture, generally put in the sitting room, install the soft pad, be used for rest, the common sofa on the market has high back sofa, low back sofa and ordinary sofa three.
[0003] The existing part sofa design has some notable deficiencies. The backrest cannot be detached, making transportation and moving into the house extremely inconvenient, as the overall volume is large and difficult to pass through narrow door frames or stairway corners. At the same time, these sofas usually have fixed backrest and headrest designs, lacking flexibility and unable to meet the needs of users of different heights, body types, and sitting habits, and long-term use can cause discomfort or inadequate support. More importantly, in addition, many traditional sofa designs focus on appearance and basic functions, neglecting the effective use of internal space. Therefore, a platform sofa with a detachable backrest is provided to address the above problems. SUMMARY
[0004] The utility model aims at the deficiency of prior art, provides a detachable backrest sofa, through the adjustment of pulling headrest realizes better support user head and neck part and through the automatic ejection of the placing box convenient user stores article.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A detachable backrest sofa, including sofa seat and back pad, the bottom end four corners of sofa seat are all fixedly connected with supporting leg, the bottom end front and back sides of back pad are all fixedly connected with plugboard, the top end right side of sofa seat is equipped with two plug hole grooves, the top end of back pad is rotatably connected with headrest, the bottom end of headrest is equipped with two recesses, the top end of back pad is rotatably connected with two cylinder rods, the middle part of cylinder rod is equipped with sawtooth long groove, the inside of cylinder rod is slidably connected with limit rod, the bottom end of limit rod is fixedly connected with limit block, the middle part of limit block is fixedly connected with spring piece clasp, the front side of middle part of limit block is fixedly connected with positioning roller, the outside of positioning roller is rotatably connected with ring block, the outside of ring block is equipped with hook groove one, the outside of ring block is equipped with hook groove two, the bottom end of ring block is fixedly connected with limit assembly;
[0007] Further description of the above technical scheme:
[0008] The limit assembly includes a ring block, the top end of the ring block is fixedly connected to the top end of the ring block, and a clamping roller is rotatably connected to the middle part of the ring block.
[0009] As a further description of the above technical solutions:
[0010] The left side of the sofa seat is fixedly connected with two partitions, the top end of the partition is slidably connected with a sliding block, the right side of the sliding block is fixedly connected with a telescopic rod one, the telescopic rod one is sleeved with a spring one, the top end of the sliding block is fixedly connected with a placing box, the left side of the partition is rotatably connected with a clamping piece, the bottom end of the clamping piece is fixedly connected with a telescopic rod two, the outer part of the telescopic rod two is sleeved with a spring two, and the left side bottom end of the sliding block is provided with a clamping groove.
[0011] As a further description of the above technical solutions:
[0012] The outer part of the plug is clamped with the inner wall of the jack groove, and the outer part of the bottom end of the back pad is in contact with the top end of the sofa seat.
[0013] As a further description of the above technical solutions:
[0014] The top end of the limiting rod is rotatably connected to the inner wall top end of the groove, the outer part of the bottom end of the ring block is clamped with the outer part of the hook groove one, and the outer part of the bottom end of the ring block is clamped with the outer part of the hook groove two.
[0015] As a further description of the above technical solutions:
[0016] The outer part of the clamping roller is clamped with the inner wall of the sawtooth long groove, and the rear side of the ring block is rotatably connected to the front side of the limiting block.
[0017] As a further description of the above technical solutions:
[0018] The right end of the sliding block is fixedly connected to the inner right side of the partition, the left end of the telescopic rod one is fixedly connected to the right side of the sliding block, and the right end of the telescopic rod one is fixedly connected to the inner right side of the partition.
[0019] As a further description of the above technical solutions:
[0020] The top end of the clamping piece is clamped with the inner wall of the clamping groove, the bottom end of the telescopic rod two is fixedly connected to the left side inner wall of the sofa seat, the top end of the spring two is fixedly connected to the bottom end of the clamping piece, and the bottom end of the spring two is fixedly connected to the left side inner wall of the sofa seat.
[0021] The beneficial effects of the present application are as follows:
[0022] (1) The present invention drives the limit rod to slide in the cylindrical rod by bending the headrest, so that the clamping roller indirectly fixed at the bottom end of the limit rod is engaged and limited by the different sawtooth positions in the sawtooth long groove through the rotation of the ring block, thereby enabling the user to adjust the position of the headrest according to the sitting habit, providing a more fitting head and neck support, and bringing the best relaxation experience.
[0023] (2) The utility model increases the storage space of the sofa by prying the card piece, so that the slider sliding in the partition is driven by the telescopic rod and the spring to automatically pop out the storage box, so that the user can quickly open the storage box to store supplies when needed.
[0024] In summary, the utility model has the advantages of adjusting the headrest and facilitating the storage of items. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a three-dimensional schematic diagram of a sofa with a detachable backrest proposed by the present invention;
[0026] Figure 2 This is a structural diagram of a sofa insert with a detachable backrest proposed by the utility model;
[0027] Figure 3 This is a structural diagram of a sofa with a detachable backrest and a serrated long groove proposed by the utility model;
[0028] Figure 4 This is a structural diagram of a sofa ring block with a detachable backrest proposed by the utility model;
[0029] Figure 5 This is a structural diagram of a sofa partition with a detachable backrest proposed by the utility model;
[0030] Figure 6 This is an exploded view of a sofa box with a detachable backrest proposed in this utility model
[0031] Figure 7 for Figure 5 Enlarged view of point A in the middle.
[0032] Legend:
[0033] 1. Sofa seat; 2. Support legs; 3. Back cushion; 4. Insert plate; 5. Insert slot; 6. Headrest; 7. Groove; 8. Rod; 9. Sawtooth slot; 10. Limit rod; 11. Limit block; 12. Spring hook; 13. Positioning roller; 14. Ring block; 15. Hook slot 1; 16. Hook slot 2; 17. Ring block; 18. Card roller; 19. Partition; 20. Slider; 21. Telescopic rod 1; 22. Spring 1; 23. Placement box; 24. Card; 25. Telescopic rod 2; 26. Spring 2; 27. Card slot DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0035] In the description of the present invention, 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 indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0036] Example 1
[0037] As shown Figures 1 to 3 As shown, this embodiment provides: a sofa with a detachable backrest, including a sofa seat 1 and a back cushion 3, the bottom end of the back cushion 3 is in contact with the top of the sofa seat 1, and the back cushion 3 is a detachable part. It supports the user's back by contacting the top of the sofa seat 1 with the bottom. The four corners of the bottom end of the sofa seat 1 are fixedly connected to the support legs 2, which provide a stable support base for the sofa and ensure that the sofa stands firmly on the ground. The front and back sides of the bottom end of the back cushion 3 are fixedly connected to the plug plate 4. Two socket slots 5 are provided on the right side of the top of the sofa seat 1. The outside of the plug plate 4 engages with the inner wall of the socket slot 5. The plug plate 4 is used to fix the back cushion 3 to the sofa seat 1. The fast disassembly function is achieved by engaging with the socket slot 5. This design allows the user to easily remove or install the back cushion 3, which is convenient for cleaning or replacement.
[0038] Example 2
[0039] like Figure 3 、 Figure 4As shown, the same or corresponding components as in Example One are denoted by the same reference numerals, and for brevity, only the differences from Example One will be described below. Example Two differs from Example One in that:
[0040] The top end of the back cushion 3 is rotatably connected with a headrest 6, which can be adjusted in angle to adapt to the comfort needs of different users. The bottom end of the headrest 6 is provided with two grooves 7, and the top end of the back cushion 3 is rotatably connected with two cylinder rods 8, which allow the headrest 6 to move up and down and tilt within a certain range, increasing the flexibility of use. The middle part of the cylinder rod 8 is provided with a sawtooth long slot 9, which provides a mechanism for the headrest 6 to be locked in different positions. The inside of the cylinder rod 8 is slidably connected with a limiting rod 10, the top end of which is rotatably connected to the inner wall top end of the groove 7, and the limiting rod 10 controls the position of the headrest 6 by sliding, when the user adjusts the headrest 6, the limiting rod 10 moves accordingly. The bottom end of the limiting rod 10 is fixedly connected with a limiting block 11, which serves as a connection point and also plays a role in positioning. The middle part of the limiting block 11 is fixedly connected with a spring sheet hook 12, which is used to maintain the stability of the headrest 6 and prevent accidental movement. The middle part of the limiting block 11 is fixedly connected with a positioning roller 13 on the front side, which helps to determine the position of the limiting block 11, thereby indirectly affecting the angle of the headrest 6. The outside of the positioning roller 13 is rotatably connected with a ring block 14, the outside of which is provided with a hook slot one 15, and the outside of which is provided with a hook slot two 16, the bottom end of the ring block 14 is engaged with the outside of the hook slot one 15, and the bottom end of the ring block 14 is engaged with the outside of the hook slot two 16, the back side of the ring block 14 is rotatably connected to the front side of the limiting block 11, and the ring block 14 cooperates with the spring sheet hook 12 through the hook slot thereon to achieve precise control of the angle of the headrest 6.
[0041] The bottom end of the ring block 14 is fixedly connected with a limiting assembly, which includes a ring block 17, the top end of which is fixedly connected to the top end of the ring block 14, and the limiting assembly ensures the correct position and stability of the ring block 14. The middle part of the ring block 17 is rotatably connected with a card roller 18, the outside of which is engaged with the inner wall of the sawtooth long slot 9, and the card roller 18 moves along the sawtooth long slot 9, locking or unlocking the position of the headrest 6 as needed.
[0042] Example Three
[0043] As Figures 5 to 7As shown, the embodiment provides a method for placing an article, the left side of the sofa seat 1 is fixedly connected with two partitions 19, which provides mounting space for the placing box 23. The top end of the partition 19 is internally slidably connected with a sliding block 20, the right end of the sliding block 20 is fixedly connected to the inner right side of the partition 19, the sliding block 20 can slide in the partition 19 to drive the telescopic rod one 21 to move together, realizing the lifting function of the placing box 23. The right side of the sliding block 20 is fixedly connected with the telescopic rod one 21, the left end of the telescopic rod one 21 is fixedly connected to the right side of the sliding block 20, the right end of the telescopic rod one 21 is fixedly connected to the inner right side of the partition 19, the telescopic rod one 21 is sleeved with a spring one 22, the spring one 22 provides a rebound force for the telescopic rod one 21, so that the placing box 23 can be automatically retracted when not in use. The top end of the sliding block 20 is fixedly connected with the placing box 23, the clamping piece 24 is used to lock the position of the placing box 23 to prevent it from popping out when not needed;
[0044] The left side of the partition 19 is rotatably connected with the clamping piece 24, the top end of the clamping piece 24 is externally engaged with the inner wall of the clamping groove 27, the bottom end of the clamping piece 24 is fixedly connected with the telescopic rod two 25, the bottom end of the telescopic rod two 25 is fixedly connected to the left inner wall of the sofa seat 1, the telescopic rod two 25 and the spring two 26 work together to make the clamping piece 24 can be easily operated without affecting the stability of the placing box 23. The outer part of the telescopic rod two 25 is sleeved with the spring two 26, the top end of the spring two 26 is fixedly connected to the bottom end of the clamping piece 24, when the clamping piece 24 is operated, it will push the sliding block 20 to slide along the partition 19, thereby controlling the lifting of the placing box 23. The bottom end of the spring two 26 is fixedly connected to the left inner wall of the sofa seat 1, the left bottom end of the sliding block 20 is provided with a clamping groove 27, the clamping groove 27 is used to receive the hook part of the clamping piece 24, when the placing box 23 reaches the designated position, the clamping piece 24 will be engaged with it to ensure that the placing box 23 will not move by itself.
[0045] Working steps
[0046] Step one, when in use, the back cushion 3 is lifted to drive the plug plate 4 to disengage from the engagement with the plug hole slot 5 of the sofa seat 1, so that the back cushion 3 can be quickly disassembled.
[0047] Step two, by piaoyou headrest 6 limit rod 10 sliding in the internal cylinder rod 8, let cylinder rod 8 synchronous limit block 11 sliding in the internal cylinder rod 8, while the limit block 11 indirectly connected card roller 18 will slide in the sawtooth slot 9 sawtooth slot position, in the process will be through the ring block 17 connected ring block 14 rotation to positioning roller 13 rotation as the center, while the ring block 14 rotation, its inclined surface will push the spring piece card hook 12 first with ring block 14 left hook groove one 15 card, and then slide reset with ring block 14 hook groove two 16 card, so that the hook head of spring piece card hook 12 always keep with hook groove two 16, hook groove one 15 card on ring block 14, realize through spring piece card hook 12 card ring block 14 outside, thereby against ring block 17 inclined push card roller 18 stable with different position sawtooth slot 9 sawtooth position card, realize, user can adjust the angle of headrest 6 at will, to provide better support and relaxation experience. In addition, when the user needs to reset the headrest 6, just pull the headrest 6 limit rod 10 indirectly connected card roller 18 sliding to the top end of sawtooth slot 9 again and push down to reset, because the upper end of sawtooth slot 9 is a long slot, card roller 18 sliding to the top end without carding position, at will can drive limit rod 10 and headrest 6 reset.
[0048] Step three, by piaoyou card 24, let card 24 extrude telescopic rod two 25 from the carding with slider 20, so that telescopic rod one 21 and spring one 22 not in hand card 24 resistance, so that the telescopic slider 20 sliding with the top of the partition 19, synchronous drive placement box 23 pop out the sofa seat 1 inside, let the user can easily prevent articles. After placing, you can push the placement box 23 reset, let the top of the placement box 23 extrude card 24 rotation, card 24 rotation then drive the hook head on the top side of card 24 and card slot 27 of slider 20 carding, indirectly fixed placement box 23, effectively prevent the placement box 23 accidental opening.
[0049] The above only for the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A sofa with a detachable backrest, comprising a sofa seat and a back cushion, characterized in that: The four corners of the bottom end of the sofa seat are fixedly connected to supporting feet, the front and rear sides of the bottom end of the back cushion are fixedly connected to plug plates, two jack slots are provided on the right side of the top end of the sofa seat, the top end of the back cushion is rotatably connected to a headrest, the bottom end of the headrest is provided with two grooves, the top end of the back cushion is rotatably connected to two cylinder rods, the middle part of the cylinder rod is provided with a serrated long groove, the inner sliding connection of the cylinder rod is connected to a limit rod, the bottom end of the limit rod is fixedly connected to a limit block, the middle part of the limit block is fixedly connected with a spring sheet hook, the middle front side of the limit block is fixedly connected with a positioning roller, the outside of the positioning roller is rotatably connected with a ring block, the outside of the ring block is provided with a hook groove 1, the outside of the ring block is provided with a hook groove 2, and the bottom end of the ring block is fixedly connected to the limiting assembly.
2. A sofa with a detachable backrest according to claim 1, characterized in that: The limiting assembly includes an annular block, the top end of the annular block is fixedly connected to the top end of the annular block, and the middle part of the annular block is rotatably connected to a clamping roller.
3. The sofa with detachable backrest according to claim 1, characterized in that: Two partitions are fixedly connected to the left side of the sofa seat, a slider is slidably connected to the top of the partition, a telescopic rod 1 is fixedly connected to the right side of the slider, a spring 1 is sleeved on the telescopic rod 1, a placement box is fixedly connected to the top of the slider, a clamp is rotatably connected to the middle part of the left side of the partition, a telescopic rod 2 is fixedly connected to the bottom end of the clamp, a spring 2 is sleeved on the outside of the telescopic rod 2, and a slot is provided at the bottom left end of the slider.
4. The sofa with detachable backrest according to claim 1, characterized in that: The outer portion of the plugging plate is engaged with the inner wall of the plugging slot, and the outer portion of the bottom end of the back cushion is in contact with the top end of the sofa seat.
5. The sofa with detachable backrest according to claim 1, characterized in that: The top end of the limiting rod is rotatably connected to the top end of the inner wall of the groove, the outer bottom end of the ring block is engaged with the outer side of the hook groove 1, and the outer bottom end of the ring block is engaged with the outer side of the hook groove 2.
6. The sofa with detachable backrest according to claim 2, characterized in that: The outer portion of the clamping roller is engaged with the inner wall of the serrated long groove, and the rear side of the ring block is rotatably connected to the front side of the limiting block.
7. The sofa with detachable backrest according to claim 3, characterized in that: The right end of the slider is fixedly connected to the inner right side of the partition, the left end of the telescopic rod 1 is fixedly connected to the right side of the slider, and the right end of the telescopic rod 1 is fixedly connected to the inner right side of the partition.
8. The sofa with detachable backrest according to claim 3, characterized in that: The top outer portion of the clamp is engaged with the inner wall of the clamping slot, the bottom end of the second telescopic rod is fixedly connected to the left inner wall of the sofa seat, the top end of the second spring is fixedly connected to the bottom end of the clamp, and the bottom end of the second spring is fixedly connected to the left inner wall of the sofa seat.