A detachable lumbar support assembly and a seat

Abstract

The utility model discloses a detachable waist support assembly and seat, including base and waist support spare, be equipped with the structure of inserting and locking control structure between base and waist support spare, and the structure of inserting includes setting on the structure of inserting of one of base and waist support spare, the slot of setting on the other of base and waist support spare, and the structure of inserting can insert or get out of the slot, locking control structure has locking state and unlocking state, through setting the structure of inserting between base and waist support spare and the locking control structure of switching between locking state and unlocking state, make the person who sits can change the waist support spare of corresponding specification or style color according to own demand, satisfy the different use demand of person who sits, set up this detachable waist support assembly on the seat, can effectively promote seat use experience.

Description

Technical Field

[0001] This utility model relates to the field of seating, and in particular to a detachable lumbar support component and a seat. Background Technology

[0002] The chairs currently available on the market include chairs for adults, such as office chairs, as well as chairs for children, such as study chairs. Many of these chairs have lumbar supports on the backrests, but these lumbar supports are usually difficult to remove and cannot meet the needs of users.

[0003] Taking existing office chairs as an example, the main lumbar support on some chair backs is integrally molded at the lower end of the back support component, while the main lumbar support on other chair backs is fixedly connected to the back support through a complex connecting mechanism; when the user wants to change to a different style or color of lumbar support, it is difficult to remove the lumbar support from the chair back.

[0004] Taking existing study chairs as an example, to correct children's sitting posture, some study chairs also have symmetrical side lumbar supports on both sides of the backrest. At the same time, to ensure support and comfort, the inside of the side lumbar supports is usually connected to side support pads. When the child sits on the chair, the two side support pads can support the child's upper body on both sides to prevent him from falling to the side. However, the existing side lumbar supports are mostly molded as one piece with the backrest, which is also difficult to remove and replace. In addition to the difficulty in meeting the need to change to different styles or colors of side lumbar supports, it also results in the support space between the two side support pads remaining unchanged, making it difficult to adapt to children of different body types and at different developmental stages.

[0005] Therefore, it is necessary to design a detachable lumbar support component that can be installed on the seat, so that the user can quickly remove the main lumbar support or side lumbar support from the backrest and replace it according to their own actual situation, thereby meeting their usage needs. Summary of the Invention

[0006] This utility model provides a detachable lumbar support component and a seat. By setting an insertion structure between the base and the lumbar support component and a locking control structure that switches between locked and unlocked states, the user can quickly replace the lumbar support component with the corresponding specifications, styles, and colors according to their own needs, thus meeting different usage requirements. Setting this detachable lumbar support component on the seat can effectively improve the user experience.

[0007] The technical solution of this utility model is implemented as follows:

[0008] A detachable lumbar support assembly includes a base and a lumbar support member. An insertion structure and a locking control structure are provided between the base and the lumbar support member. The insertion structure includes an insertion part disposed on one of the base and the lumbar support member, and a slot disposed on the other. The insertion part can be inserted into or removed from the slot. The locking control structure has a locked state and an unlocked state. When the lumbar support member is connected to the base, the insertion part is inserted into the slot, and the locking control structure is in the locked state, preventing the insertion part from exiting the slot. When the lumbar support member needs to be separated from the base, the locking control structure switches to the unlocked state, allowing the insertion part to exit the slot in the opposite direction.

[0009] Preferably, the insertion part is located on the waist support, and the slot is located on the base.

[0010] Preferably, the base has a first mounting surface, the waist support has a second mounting surface, and the insertion structure is disposed between the first mounting surface and the second mounting surface; when the insertion part is inserted into the slot, the first mounting surface and the second mounting surface fit together, and the base and the waist support overlap each other; making the connection between the base and the waist support tighter and optimizing the connection structure.

[0011] Preferably, a mounting block is provided on the first mounting surface, and the slot is formed by the concave outer surface of the mounting block. The insertion part corresponding to the position of the slot is integrally formed on the second mounting surface.

[0012] Preferably, the waist support has a through clearance area corresponding to the insertion part. When the insertion part is inserted into the slot, the mounting block is located within the clearance area. This ensures that the waist support fits tightly with the base and avoids gaps between the base and the waist support due to the presence of the mounting block, thereby avoiding affecting the appearance of the waist support assembly.

[0013] Preferably, the number of inserts is one or more, and the number of slots corresponds to the number of inserts.

[0014] Preferably, the locking control structure includes a through hole on one of the base and the waist support, and a threaded hole on the other. When the waist support is connected to the base, the screw passes through the through hole and locks into the threaded hole to prevent the insert from coming out of the slot. When the waist support needs to be separated from the base, the screw is unscrewed from the threaded hole, allowing the insert to come out of the slot in the opposite direction. The threaded connection method is relatively simple, making the disassembly and installation of the entire waist support and the base more convenient.

[0015] Preferably, the number of through holes and the number of threaded holes are both single; a single threaded hole and a single through hole only require a single screw to pass through, and a single screw is easier to disassemble or install.

[0016] Preferably, the locking control structure includes a slot on the base or waist support, which communicates with the slot. The insertion part is provided with a buckle corresponding to the slot. When the waist support is connected to the base, the buckle engages in the slot to prevent the insertion part from coming out of the slot. The base or waist support is equipped with a control element corresponding to the position of the slot. When the waist support needs to be separated from the base, an external force acts on the control element to push the buckle out of the slot, allowing the insertion part to come out of the slot in the opposite direction.

[0017] A seat includes a backrest and a removable lumbar support assembly disposed on the backrest.

[0018] Preferably, the base of the detachable lumbar support assembly is symmetrically connected to the backrest, and the lumbar support is a side lumbar support that is detachably connected to the corresponding base; so that the sitter can replace the side lumbar support as needed to meet their replacement needs.

[0019] Preferably, the base of the detachable lumbar support assembly is connected near the lower end of the chair back, and the lumbar support component is a main lumbar support that is detachably connected to the base. This allows the user to replace the main lumbar support as needed, meeting their replacement requirements.

[0020] The beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0021] This invention simplifies the connection process between the lumbar support and the base to a simple plug-in process by setting an insertion structure between the base and the lumbar support. After insertion, a locking control structure controls the insertion or removal of the insertion part from the slot. When the locking control mechanism is locked, it prevents the insertion part from leaving the slot, ensuring a stable connection between the lumbar support and the base. When the locking control mechanism is unlocked, the insertion part can be directly pulled out of the slot. This simplifies the separation process of the lumbar support and the base to a simple pull-out process, making disassembly and installation convenient. It allows users to quickly change seats according to their needs, meeting different usage requirements and improving the user experience.

[0022] The lumbar support can be the main lumbar support, which is usually set on the back of the office chair. When the user wants a different style or color of main lumbar support, the locking control mechanism can be used to control the insert structure and replace it with a different style or color of main lumbar support, thus meeting the user's need to change the main lumbar support to different styles and colors.

[0023] The lumbar support can be a side lumbar support. The inner side of the side lumbar support is usually fixedly connected to the side support cushion. The insertion structure is controlled by a locking control mechanism, so that the sitter can replace the side lumbar support with different styles or side support cushions with different thicknesses. This not only meets the sitter's need to replace the side lumbar support with different styles, but also allows different sizes of support areas to be formed between the two side support cushions, thus making it suitable for sitters of different body types. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure for installing a detachable lumbar support component onto the chair back;

[0025] Figure 2 This is an enlarged view of the insert structure and locking control structure in a detachable lumbar support assembly.

[0026] Figure 3 This is an enlarged view of the insertion structure and locking control structure from another angle;

[0027] Figure 4 Comparison of the effects of installing two types of side lumbar supports with different thicknesses of side support padding on a chair back;

[0028] Figure 5 This is an external view of the locking control structure in Example 2;

[0029] Figure 6 This is an exploded view of the locking control structure in Example 2.

[0030] Figure 7 This is a schematic diagram of the connection structure between the main waist support and the base in Example 3;

[0031] Figure 8 This is a schematic diagram of another connection structure between the main waist support and the base in Embodiment 3.

[0032] The attached figures are labeled as follows: 1-base, 11-slot, 111-slot, 112-screw hole, 12-through hole, 13-countersunk hole, 14-mounting block, 2-waist support, 21-insertion part, 22-threaded hole, 23-avoidance area, 211-buckle, 3-side support pad, 4-control component, 41-positioning hole, 42-strip hole. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0035] This utility model has multiple embodiments, and the specific implementation methods are as follows:

[0036] Example 1: As Figure 1-5 As shown, this embodiment provides a detachable lumbar support assembly, including a base 1 and a lumbar support member 2. An insertion structure and a locking control structure are provided between the base 1 and the lumbar support member 2. The insertion structure includes an insertion part 21 disposed on one of the base 1 and the lumbar support member 2, and a slot 11 disposed on the other. The insertion part 21 can be inserted into or removed from the slot 11. The number of insertion parts 21 can be single or multiple, and the number of slots 11 corresponds to the number of insertion parts 21. In this embodiment, the insertion part 21 is disposed on the lumbar support member 2, and the slot 11 is disposed on the base 1 for explanation and illustration. Figure 1-2 As shown, in this embodiment, the base 1 is provided with three slots 11, and the waist support member 2 is also provided with three corresponding insertion parts 21. The locking control structure has a locked state and an unlocked state. When the waist support member 2 is connected to the base 1, the insertion part 21 is inserted into the slot 11, the locking control structure is in the locked state and restricts the insertion part 21 from coming out of the slot 11, so that the waist support member 2 is stably connected to the base 1. When the waist support member 2 needs to be separated from the base 1, the locking control structure switches to the unlocked state, so that the insertion part 21 can come out of the slot 11 in the opposite direction.

[0037] Furthermore, a seat is provided, including a backrest and a detachable lumbar support assembly disposed on the backrest. In this embodiment, the base 1 of the detachable lumbar support assembly is symmetrically connected to the backrest on both sides, and the lumbar support 2 is a side lumbar support that is detachably connected to the corresponding base 1; the occupant can replace the side lumbar support as needed to meet their replacement needs.

[0038] Furthermore, in this embodiment, to ensure a simple and aesthetically pleasing appearance, the outer contour of the base 1 matches the outer contour of the side waist support. The base 1 has a first mounting surface, which is the inner side of the base 1. The waist support 2 has a second mounting surface, and the contours of the first and second mounting surfaces also match each other. The second mounting surface is the outer side of the waist support 2. The insertion structure is disposed between the first and second mounting surfaces. The inner side of the waist support 2 is typically used to attach an elastic side support pad 3. When the insertion part 21 is inserted into the slot 11, the first mounting surface and the second mounting surface fit together, causing the base 1 and the waist support 2 to overlap. This design makes the connection between the base 1 and the waist support 2 tighter, optimizes the connection structure, and in terms of appearance, the side waist support and the base 1 form an integrated structure, making the appearance more beautiful and harmonious.

[0039] Furthermore, since the base 1 is a flat sheet, if a slot 11 is directly provided on the first mounting surface of the base 1, the slot 11 will inevitably penetrate the base 1, affecting its appearance. Therefore, to avoid this phenomenon, a mounting block 14 is provided on the first mounting surface, and the slot 11 is formed by the concave outer surface of the mounting block 14. The insertion part 21 corresponding to the position of the slot 11 is integrally formed on the second mounting surface. At the same time, in order to ensure that the first mounting surface and the second mounting surface fit flatly, a through clearance area 23 is provided on the waist support member 2 corresponding to the position of the insertion part 21. The clearance area 23 is rectangular, and the insertion part 21 extends outward from one side of the rectangle. When the insertion part 21 is inserted into the slot 11, the mounting block 14 is located within the clearance area 23. This makes the waist support member 2 fit tightly with the base 1, avoiding the formation of a gap between the base 1 and the waist support member 2 due to the presence of the mounting block 14, and ensuring that the waist support assembly has a good appearance and integrity.

[0040] Furthermore, the locking control structure needs to be easy for the user to operate and control in order to achieve the purpose of quick disassembly and assembly of the lumbar support 2. The locking control structure in this embodiment includes a through hole 12 provided on one of the base 1 and the lumbar support 2, and a threaded hole 22 provided on the other of the base 1 and the lumbar support 2. In this embodiment, the threaded hole 22 is provided on the lumbar support 2, that is, the side lumbar support, and the through hole 12 is provided on the base 1. When the lumbar support 2 is connected to the base 1, the user can insert a screw from the outside to the inside, so that the screw passes through the through hole 12 and locks into the threaded hole 22 to prevent the insert part 21 from coming out of the slot 11. When the lumbar support 2 needs to be separated from the base 1, the screw is unscrewed from the threaded hole 22, so that the insert part 21 can come out of the slot 11 in the opposite direction. The threaded connection method is relatively simple, making the disassembly and assembly of the entire lumbar support 2 and the base 1 more convenient.

[0041] Furthermore, to facilitate operation by the user and save disassembly and assembly time, the number of through holes 12 and the number of threaded holes 22 are both single; each threaded hole 22 and through hole 12 only requires a single screw to pass through. When controlling the insertion part 21 to come out or the slot 11 to come out, only a single screw needs to be turned with a screwdriver, which facilitates the disassembly or installation of the side waist support.

[0042] Furthermore, the base 1 is provided with a countersunk hole 13 concentric with the through hole 12 and used to accommodate the screw head. The diameter of the countersunk hole 13 is larger than the diameter of the through hole 11. When the screw is screwed into the threaded hole 22, the screw head is inside the countersunk hole 13 to avoid being exposed, making the shape of the base 1 more concise.

[0043] Example 2: Figure 5-6 As shown, the difference from the above embodiment is that the locking control structure in this embodiment includes a slot 111 provided on the base 1 or the waist support 2, the slot 111 communicating with the slot 11. This embodiment is explained with the slot 111 being provided on the base 1; the insertion part 21 is provided with a buckle 211 corresponding to the slot 111, the buckle 211 protruding from the surface of the insertion part 21. At the same time, for ease of control and operation, the slot 111 in this embodiment is only provided at the position corresponding to one of the slots 11, and the control element 4 is also a single one, so that the seated person only needs to operate a single control element 4; when the waist support 2 and the base 111 are locked together, the locking control structure in this embodiment is adjusted according to the specific embodiment. When the base 1 is connected, the buckle 211 engages with the slot 111 to prevent the insert part 21 from disengaging from the slot 11. To facilitate the separation of the buckle 211 from the slot 111, a control element 4 corresponding to the position of the slot 111 is installed on the base 1 or the waist support 2. The control element 4 can be fixedly connected to the base 1 or movably connected to the base 1. When the waist support 2 needs to be separated from the base 1, an external force is applied to the control element 4, causing the control element 4 to push the buckle 211 out of the slot 111, so that the insert part 21 can be disengaged from the slot 11 in the opposite direction. This achieves the same purpose as in the above embodiment, making the waist support 2 easy to replace.

[0044] Furthermore, in this embodiment, the control component 4 is equivalent to a pressing component. When the user needs to disassemble the lumbar support component 2, they only need to press the control component 4. Specifically, the connection structure between the control component 4 and the base 1 is as follows: the base 1 is provided with two screw holes 112. The control component 4 is a V-shaped elastic sheet, which is easily deformed after being pressed, and at the same time can block the buckle 211, ensuring a beautiful and simple structure. The V-shaped elastic sheet has two supports, and each of the two supports is provided with a positioning hole 41 and a strip hole 42. The two screws pass through the positioning hole 41 and the strip hole 42 respectively and are screwed into the corresponding screw holes 112. When the control component 4 is pressed, the shank of the screw that cooperates with the strip hole 42 forms a sliding structure with the strip hole 42. When pressed, the control component 4 elastically deforms, and the support with the strip hole 42 slides, so that the control component 4 can push the buckle 211 out of the slot 111.

[0045] Example 3: As Figure 7-8 As shown, the difference from the above embodiment is that in this embodiment, the base 1 of the detachable lumbar support component is connected near the lower end of the chair back, and the lumbar support 2 is a main lumbar support that is detachably connected to the base 1. The user can replace the main lumbar support as needed to meet their needs for different styles and colors of main lumbar support.

[0046] Furthermore, such as Figure 7 As shown, in this embodiment, the base 1 is fixedly connected to a slot 11 near the lower end of the chair back and has a downward-opening slot. The upper end of the insert part 21 of the main lumbar support is connected to the insert part 21. The threaded hole 22 in the locking control structure is provided on the base 1, and the through hole 12 is provided on the insert part 21 of the main lumbar support. The user can disassemble and replace the main lumbar support by locking or unscrewing the threaded hole 22.

[0047] Furthermore, such as Figure 8 As shown, in this embodiment, the base 1 can also be a main lumbar support bracket fixedly connected to the lower end of the chair back, and the main lumbar support bracket matches the outer contour of the main lumbar support; the aforementioned insertion structure is provided between the front side of the main lumbar support bracket and the rear side of the main lumbar support, and the main lumbar support bracket is provided with multiple or a single mounting block 14, the upper end face of the mounting block 14 is grooved and forms the aforementioned slot 11, and the rear side of the main lumbar support is provided with a corresponding downwardly extending insertion part 21. Specifically, the threaded hole 22 in the locking control structure is provided on the main lumbar support, and the through hole 12 is provided on the base 1; during installation, simply insert the insertion part 21 on the main lumbar support downward into the corresponding slot 11, and then screw it into the threaded hole 22; during disassembly, simply unscrew the screw out of the threaded hole 22, and then let the insertion part 22 on the main lumbar support upward out of the slot 11.

[0048] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A detachable lumbar support assembly, characterized in that, The device includes a base (1) and a waist support (2). An insertion structure and a locking control structure are provided between the base (1) and the waist support (2). The insertion structure includes an insertion part (21) provided on one of the base (1) and the waist support (2) and a slot (11) provided on the other of the base (1) and the waist support (2). The insertion part (21) can be inserted into or removed from the slot (11). The locking control structure has a locked state and an unlocked state. When the waist support (2) is connected to the base (1), the insertion part (21) is inserted into the slot (11). The locking control structure is in the locked state and restricts the insertion part (21) from being removed from the slot (11). When the waist support (2) needs to be separated from the base (1), the locking control structure switches to the unlocked state, so that the insertion part (21) can be removed from the slot (11) in the opposite direction.

2. The detachable lumbar support assembly according to claim 1, characterized in that: The insert (21) is mounted on the waist support (2), and the slot (11) is mounted on the base (1).

3. A detachable lumbar support assembly according to claim 1 or 2, characterized in that: The base (1) has a first mounting surface, and the waist support (2) has a second mounting surface. The insertion structure is disposed between the first mounting surface and the second mounting surface. When the insertion part (21) is inserted into the slot (11), the first mounting surface and the second mounting surface fit together, and the base (1) and the waist support (2) overlap each other.

4. A detachable lumbar support assembly according to claim 3, characterized in that: A mounting block (14) is provided on the first mounting surface. The slot (11) is formed by the recess of the outer surface of the mounting block (14). The insertion part (21) corresponding to the position of the slot (11) is integrally formed on the second mounting surface.

5. A detachable lumbar support assembly according to claim 4, characterized in that: The waist support member (2) has a through clearance area (23) corresponding to the position of the insertion part (21). When the insertion part (21) is inserted into the slot (11), the mounting block (14) is located in the clearance area (23).

6. A detachable lumbar support assembly according to claim 1, characterized in that: The number of inserts (21) is one or more, and the number of slots (11) corresponds to the number of inserts (21).

7. A detachable lumbar support assembly according to claim 1, characterized in that: The locking control structure includes a through hole (12) on one of the base (1) and the waist support (2) and a threaded hole (22) on the other of the base (1) and the waist support (2). When the waist support (2) is connected to the base (1), the screw passes through the through hole (12) and locks into the threaded hole (22) to prevent the insert (21) from coming out of the slot (11). When the waist support (2) needs to be separated from the base (1), the screw is unscrewed out of the threaded hole (22) so that the insert (21) can come out of the slot (11) in the opposite direction.

8. A detachable lumbar support assembly according to claim 6, characterized in that: The number of through holes (12) and the number of threaded holes (22) are both single.

9. A detachable lumbar support assembly according to claim 1, characterized in that: The locking control structure includes a slot (111) provided on the base (1) or waist support (2), the slot (111) is connected to the slot (11), and the insertion part (21) is provided with a buckle (211) corresponding to the slot (111). When the waist support (2) is connected to the base (1), the buckle (211) is engaged in the slot (111) to restrict the insertion part (21) from coming out of the slot (11). The base (1) or waist support (2) is equipped with a control element (4) corresponding to the position of the slot (111). When the waist support (2) needs to be separated from the base (1), the external force acts on the control element (4) to push the buckle (211) out of the slot (111) so that the insertion part (21) can come out of the slot (11) in the opposite direction.

10. A type of seat, characterized in that, Includes a chair back and a detachable lumbar support assembly as described in claim 1, disposed on the chair back.

11. A seat according to claim 10, characterized in that: The base (1) of the detachable lumbar support assembly is symmetrically connected to the back of the chair, and the lumbar support (2) is a side lumbar support that is detachably connected to the corresponding base (1).

12. A seat according to claim 10, characterized in that: The base (1) of the detachable lumbar support assembly is connected near the lower end of the chair back, and the lumbar support (2) is a main lumbar support that is detachably connected to the base (1).

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