Adjustable waist rest

Abstract

The utility model relates to an adjustable waist rest which comprises a connecting base, an adjusting handle assembly, an inserting assembly, a movable adjusting block and a movable waist rest assembly, the adjusting handle assembly is rotationally installed on the connecting base, and the position, close to the inserting assembly, of the adjusting handle assembly is connected with a limiting block. The limiting block is movably connected with the inserting-connecting assembly in an abutting mode, the inserting-connecting assembly is movably connected to the movable adjusting block in an inserted mode, the movable adjusting block is movably arranged in the connecting base in a penetrating mode, and the end, away from the connecting base, of the movable adjusting block is connected with the movable waist leaning assembly. The waist support has the advantages that the front-back position of the waist support can be conveniently and quickly adjusted, and the waist support requirements of different users are met.

Description

Technical Field

[0001] This utility model relates to the field of lumbar support technology, specifically to an adjustable lumbar support. Background Technology

[0002] In modern office, driving, and home life, maintaining a seated posture for extended periods can easily lead to lower back fatigue and even lumbar spine injury. Therefore, the lumbar support design of a chair is particularly important. Traditional fixed lumbar supports cannot adapt to the different body shapes and sitting postures of users, and existing lumbar support structures are generally not adjustable or inconvenient to adjust, making it difficult to simultaneously meet the requirements of convenience, reliability, and ergonomics. Summary of the Invention

[0003] The purpose of this invention is to provide an adjustable lumbar support that allows for convenient and quick adjustment of its front and back positions to meet the lumbar support needs of different users.

[0004] An adjustable lumbar support includes a connecting base, an adjusting handle assembly, a plug-in assembly, a movable adjusting block, and a movable lumbar support assembly. The adjusting handle assembly is rotatably mounted on the connecting base. A limiting block is connected to the adjusting handle assembly near the plug-in assembly. The limiting block movably abuts against the plug-in assembly. The plug-in assembly is movably plugged into the movable adjusting block. The movable adjusting block movably passes through the connecting base. One end of the movable adjusting block away from the connecting base is connected to the movable lumbar support assembly.

[0005] In the above solution, the connecting seat provides stable support for the adjusting handle assembly, the plug-in assembly, and the movable adjusting block. The adjusting handle assembly can control the movable lifting and lowering of the plug-in assembly. The movable lifting and lowering of the plug-in assembly is used to lock and adjust the position of the movable adjusting block. When the limit block abuts against the plug-in assembly, the plug-in assembly is plugged into the movable adjusting block, and the position of the movable adjusting block is locked. When the limit block moves away from the plug-in assembly, the plug-in assembly descends away from the movable adjusting block. This allows adjustment of the position of the movable adjusting block inside the connecting seat, and thus adjusts the front and rear position of the movable lumbar support assembly installed on the seat.

[0006] Furthermore, the connecting seat includes a main body and a connecting part. The main body is provided with an adjustment channel, and the movable adjustment block is movably inserted through the adjustment channel. The connecting part is provided with a connecting groove, and the limiting block is embedded in the connecting groove.

[0007] In the above scheme, the movable adjustment block adjusts its position along the adjustment channel, which can ensure the stability of the movement of the movable adjustment block. A connecting groove is provided on the connecting part so that the limiting block is embedded in the position of the connecting groove, ensuring the compactness of the structure. The limiting block is rotatably connected to the connecting part through the adjustment handle assembly.

[0008] Furthermore, the adjusting handle assembly includes a first adjusting handle and a second adjusting handle. The first adjusting handle includes a first handle and a connecting pin, the connecting pin passing through the connecting portion and the limiting block. The second adjusting handle includes a second handle and a connecting post, the connecting post being sleeved on the end of the connecting pin.

[0009] In the above scheme, the connecting pin passes through the connecting part and the limiting block, and the connecting post is sleeved on the end of the connecting pin to realize the rotational connection of the adjusting handle assembly, the limiting block and the connecting seat. By holding the first handle and the second handle and rotating the first handle and the second handle, the connecting pin and the connecting post are driven to rotate, thereby driving the limiting block to rotate so that the limiting block abuts against or moves away from the plug-in assembly.

[0010] Furthermore, the plug-in assembly includes a plug-in block and several elastic elements, the elastic elements being connected to the plug-in block, and the adjustment channel having a plug-in interface, the plug-in block being movably inserted through the plug-in interface to be plugged into the movable adjustment block.

[0011] In the above scheme, the plug-in block passes through the plug-in interface to be plugged into the movable adjustment block to lock the movable adjustment block. When the limit block abuts against the plug-in block, the elastic element is compressed, and the plug-in block is pressed tightly into the movable adjustment block. When the adjustment handle assembly is operated to move the limit block away from the plug-in block, the elastic element rebounds and moves the plug-in block away from the movable adjustment block. In this way, the position of the movable adjustment block can be freely adjusted, thereby adjusting the fore-and-aft position of the movable lumbar support assembly on the seat.

[0012] Furthermore, the movable adjustment block is provided with several insertion slots, and the insertion block can be inserted into any of the insertion slots.

[0013] In the above solution, the movable adjustment block can be locked by inserting the plug block into the plug slot on the movable adjustment block. The user can adjust the position of the plug block as needed, thereby adjusting the position of the movable lumbar support component.

[0014] Furthermore, the limiting block is provided with a limiting protrusion, which can abut against the plug-in block.

[0015] In the above scheme, the limiting protrusion is used to abut against the plug block to lock the position of the movable adjusting block. The limiting protrusion and the limiting block are integrally formed, making the structure more stable.

[0016] Furthermore, the movable lumbar support assembly includes two connecting blocks and a lumbar support base. The connecting blocks are rotatably connected to the movable adjustment block. One end of the connecting block is provided with a connecting shaft extending out of the movable adjustment block. A return spring is sleeved on the connecting shaft. The return spring is connected to a connecting plate. The connecting plate is connected to the lumbar support base.

[0017] In the above scheme, when the movable lumbar support component is subjected to pressure, the lumbar support base will apply downward pressure to the connecting plate, the connecting plate will press down the reset spring, the reset spring will drive the connecting shaft and the connecting block to rotate, thereby causing the connecting block to deflect upward. When the pressure on the movable lumbar support component is removed, the reset spring will drive the connecting shaft and the connecting block to rotate and reset, and at the same time drive the connecting plate to reset, thereby driving the lumbar support base to reset.

[0018] Furthermore, the movable lumbar support assembly also includes a lumbar support frame and a lumbar support cushion, the lumbar support frame being connected to the lumbar support base, and the lumbar support cushion covering the lumbar support frame.

[0019] In the above solution, the lumbar support frame provides rigid support to ensure the overall stability of the lumbar support structure, effectively support the lumbar spine pressure, and prevent deformation or collapse. The lumbar support cushion uses flexible materials to cover the frame, conform to the curves of the human body, distribute the pressure on the waist, and improve the comfort of long-term use.

[0020] This utility model provides an adjustable lumbar support that allows for convenient and quick adjustment of its fore-and-aft position, adapting to the lumbar support needs of different users. The connecting seat provides stable support for the adjusting handle assembly, the plug-in assembly, and the movable adjusting block. The adjusting handle assembly controls the lifting and lowering of the plug-in assembly, which locks and adjusts the position of the movable adjusting block. When the limiting block abuts against the plug-in assembly, the plug-in assembly is inserted into the movable adjusting block, and the position of the movable adjusting block is locked. When the limiting block moves away from the plug-in assembly, the plug-in assembly descends away from the movable adjusting block, thus adjusting the position of the movable adjusting block within the connecting seat, and consequently, adjusting the fore-and-aft position of the movable lumbar support assembly mounted on the seat. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an adjustable lumbar support according to one embodiment.

[0022] Figure 2 This is another structural view of an adjustable lumbar support according to one embodiment.

[0023] Figure 3 An exploded view of an adjustable lumbar support according to one embodiment.

[0024] Figure 4 This is a schematic diagram of an adjustment handle assembly according to one embodiment.

[0025] Figure 5 This is a schematic diagram of a plug-in assembly connection according to one embodiment.

[0026] Figure 6 This is a schematic diagram of an embodiment of a movable lumbar support assembly.

[0027] Figure 7This is a schematic diagram of the connection between the movable adjustment block and the connecting block in one embodiment.

[0028] Reference numerals: 1. Connecting seat; 11. Main body; 111. Adjustment channel; 112. Insertion interface; 12. Connecting part; 121. Connecting groove; 2. Adjustment handle assembly; 21. First adjustment handle; 211. First handle; 212. Connecting pin; 22. Second adjustment handle; 221. Second handle; 222. Connecting post; 3. Insertion assembly; 31. Insertion block; 32. Elastic element; 4. Movable adjustment block; 41. Insertion groove; 5. Limiting block; 51. Limiting protrusion; 6. Movable lumbar support assembly; 61. Lumbar support base; 62. Lumbar support frame; 63. Lumbar support cushion; 64. Connecting block; 641. Connecting shaft; 65. Return spring; 66. Connecting plate. Detailed Implementation

[0029] The adjustable lumbar support of this utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0030] like Figures 1 to 3 As shown in a preferred embodiment, an adjustable lumbar support of the present invention includes a connecting base 1, an adjusting handle assembly 2, a plug-in assembly 3, a movable adjusting block 4, and a movable lumbar support assembly 6. The adjusting handle assembly 2 is rotatably mounted on the connecting base 1. A limiting block 5 is connected to the adjusting handle assembly near the plug-in assembly 3. The limiting block 5 is movably abutting against the plug-in assembly 3. The plug-in assembly 3 is movably plugged into the movable adjusting block 4. The movable adjusting block 4 is movably inserted into the connecting base 1. The end of the movable adjusting block 4 away from the connecting base 1 is connected to the movable lumbar support assembly 6.

[0031] The connecting seat 1 provides stable support for the adjusting handle assembly 2, the plug-in assembly 3, and the movable adjusting block 4. The adjusting handle assembly 2 can control the movable lifting and lowering of the plug-in assembly 3, which is convenient to operate. The movable lifting and lowering of the plug-in assembly 3 is used to lock and adjust the position of the movable adjusting block 4. When the limit block 5 abuts against the plug-in assembly 3, the plug-in assembly 3 is plugged into the movable adjusting block, and the position of the movable adjusting block 4 is locked. When the limit block 5 moves away from the plug-in assembly 3, the plug-in assembly 3 descends away from the movable adjusting block 4. In this way, the position of the movable adjusting block 4 passing through the connecting seat 1 can be adjusted, thereby adjusting the front and rear position of the movable lumbar support assembly 6 installed on the lumbar support on the seat. This can effectively conform to the human lumbar spine curve, dynamically relieve the pressure of prolonged sitting, reduce lumbar fatigue, and improve comfort and health support.

[0032] like Figures 1 to 3As shown, in some embodiments, the connecting seat 1 includes a main body 11 and a connecting part 12. The main body 11 is provided with an adjustment channel 111, and a movable adjustment block 4 is movably inserted through the adjustment channel 111. The connecting part 12 is provided with a connecting groove 121, and a limiting block 5 is embedded in the connecting groove 121. The movable adjustment block 4 can be adjusted along the adjustment channel 111 to ensure the stability of the movement of the movable adjustment block 4 and to ensure the stability and accuracy of the backrest adjustment. The connecting groove 121 on the connecting part 12 allows the limiting block 5 to be embedded in the connecting groove 121, ensuring the compactness of the structure. The limiting block 5 is rotatably connected to the connecting part 12 through the adjustment handle assembly 2.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the adjusting handle assembly 2 includes a first adjusting handle 21 and a second adjusting handle 22. The first adjusting handle 21 includes a first handle 211 and a connecting pin 212, which passes through the connecting part 12 and the limiting block 5. The second adjusting handle 22 includes a second handle 221 and a connecting post 222, which is sleeved on the end of the connecting pin 212. The connecting pin 212 passes through the connecting part 12 and the limiting block 5, and the connecting post 222 sleeved on the end of the connecting pin 212, thus achieving a rotatable connection between the adjusting handle assembly 2, the limiting block 5, and the connecting seat 1. By gripping the first handle 211 and the second handle 221 and rotating them, the connecting pin 212 and the connecting post 222 are rotated, thereby causing the limiting block 5 to rotate, so that the limiting block 5 abuts against or moves away from the insertion assembly 3. The symmetrical layout of the first handle 211 and the second handle 221 is ergonomic, providing a more stable grip, preventing slippage, and improving the operating experience. The rotation of the limit block 5 is synchronized with the first handle 211 and the second handle 221, providing a rapid response and achieving precise control over contact / removal from the insertion component 3, preventing adjustment failure or jamming.

[0034] like Figure 2 and Figure 5 As shown, in some embodiments, the plug-in assembly 3 includes a plug-in block 31 and several elastic members 32. The elastic members 32 are connected to the plug-in block 31. The adjustment channel 111 is provided with a plug-in interface 112. The plug-in block 31 moves through the plug-in interface 112 to plug into the movable adjustment block 4. The plug-in block 31 passes through the plug-in interface 112 to plug into the movable adjustment block 4 to lock the movable adjustment block 4. When the limiting block 5 abuts against the plug-in block 31, the elastic members 32 are compressed, and the plug-in block 31 is pressed tightly into the movable adjustment block 4. When the adjustment handle assembly 2 is operated to move the limiting block 5 away from the plug-in block 31, the elastic members 32 rebound and move the plug-in block 31 away from the movable adjustment block 4. In this way, the position of the movable adjustment block 4 can be freely adjusted, thereby adjusting the fore-and-aft position of the movable lumbar support assembly 6 on the seat.

[0035] like Figure 2 As shown, in some embodiments, the movable adjustment block 4 is provided with a plurality of insertion slots 41, and the insertion block 31 can be inserted into any of the insertion slots 41. The insertion of the insertion block 31 into the insertion slot 41 on the movable adjustment block 4 can lock the movable adjustment block 4. The user can adjust the insertion position of the insertion block 31 as needed, thereby adjusting the position of the movable lumbar support assembly 6.

[0036] like Figure 2 and Figure 7 As shown, in some embodiments, the limiting block 5 is provided with a limiting protrusion 51, which can abut against the insertion block 31. The limiting protrusion 51 is used to abut against the insertion block 31 to lock the position of the movable adjusting block 4. The limiting protrusion 51 and the limiting block 5 are integrally formed, making the structure more stable.

[0037] like Figure 3 , Figures 5 to 7 As shown, in some embodiments, the movable lumbar support assembly 6 includes two connecting blocks 64 and a lumbar support base 61. The connecting blocks 64 are rotatably connected to the movable adjustment block 4. One end of the connecting block 64 is provided with a connecting shaft 641 extending out of the movable adjustment block 4. A return spring 65 is sleeved on the connecting shaft 641. The return spring 65 is connected to a connecting plate 66, which is connected to the lumbar support base 61. When the movable lumbar support assembly 6 is subjected to pressure, the lumbar support base 61 will exert a downward pressure on the connecting plate 66. The connecting plate 66 will press down on the return spring 65, which will drive the connecting shaft 641 and the connecting blocks 64 to rotate, thereby causing the connecting blocks 64 to deflect upward. When the pressure on the movable lumbar support assembly 6 disappears, the return spring 65 will drive the connecting shaft 641 and the connecting blocks 64 to rotate and reset, and at the same time, it will also drive the connecting plate 66 to reset, thereby driving the lumbar support base 61 to reset.

[0038] like Figure 3 As shown, in some embodiments, the movable lumbar support assembly 6 further includes a lumbar support frame 62 and a lumbar support cushion 63. The lumbar support frame 62 is connected to the lumbar support base 61, and the lumbar support cushion 63 covers the lumbar support frame 62. The lumbar support frame 62 provides rigid support, ensuring the overall structural stability of the lumbar support, effectively supporting lumbar spine pressure, and preventing deformation or collapse. The lumbar support cushion 63 uses a flexible material to cover the frame, conforming to the curves of the human body, dispersing lumbar pressure, and improving comfort during long-term use.

[0039] This utility model discloses the working principle and process of an adjustable lumbar support. When it is necessary to adjust the front and back position of the movable lumbar support component 6, hold the first handle 211 and the second handle 221 and rotate the first handle 211 and the second handle 221, which drives the connecting pin 212 and the connecting column 222 to rotate, thereby driving the limiting block 5 to rotate, so that the limiting block 5 abuts against or moves away from the plug-in component 3. When the limiting block 5 abuts against the plug-in component 3, the plug-in component 3 is plugged into the movable adjustment block, and the position of the movable adjustment block 4 is locked. When the limiting block 5 moves away from the plug-in component 3, the plug-in component 3 descends and moves away from the movable adjustment block 4. In this way, the position of the movable adjustment block 4 passing through the connecting seat 1 can be adjusted, thereby adjusting the front and back position of the movable lumbar support component 6 installed on the seat.

[0040] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. An adjustable lumbar support, characterized in that, The device includes a connecting base, an adjusting handle assembly, a plug-in assembly, a movable adjusting block, and a movable lumbar support assembly. The adjusting handle assembly is rotatably mounted on the connecting base. A limit block is connected to the adjusting handle assembly near the plug-in assembly. The limit block movably abuts against the plug-in assembly. The plug-in assembly is movably inserted into the movable adjusting block. The movable adjusting block movably passes through the connecting base. The end of the movable adjusting block away from the connecting base is connected to the movable lumbar support assembly.

2. The adjustable lumbar support according to claim 1, characterized in that, The connecting seat includes a main body and a connecting part. The main body is provided with an adjustment channel, and the movable adjustment block is movably inserted through the adjustment channel. The connecting part is provided with a connecting groove, and the limiting block is embedded in the connecting groove.

3. The adjustable lumbar support according to claim 2, characterized in that, The adjustment handle assembly includes a first adjustment handle and a second adjustment handle. The first adjustment handle includes a first handle and a connecting pin, the connecting pin passing through the connecting part and the limiting block. The second adjustment handle includes a second handle and a connecting post, the connecting post being sleeved on the end of the connecting pin.

4. The adjustable lumbar support according to claim 2, characterized in that, The plug-in assembly includes a plug-in block and several elastic elements, the elastic elements being connected to the plug-in block. The adjustment channel is provided with a plug-in interface, and the plug-in block movably passes through the plug-in interface to be plugged into the movable adjustment block.

5. The adjustable lumbar support according to claim 4, characterized in that, The movable adjustment block is provided with several insertion slots, and the insertion block can be inserted into any of the insertion slots.

6. The adjustable lumbar support according to claim 5, characterized in that, The limiting block is provided with a limiting protrusion, which can abut against the plug-in block.

7. The adjustable lumbar support according to claim 1, characterized in that, The movable lumbar support assembly includes two connecting blocks and a lumbar support base. The connecting blocks are rotatably connected to the movable adjustment block. One end of the connecting block is provided with a connecting shaft extending out of the movable adjustment block. A return spring is sleeved on the connecting shaft. The return spring is connected to a connecting plate, and the connecting plate is connected to the lumbar support base.

8. The adjustable lumbar support according to claim 7, characterized in that, The movable lumbar support assembly also includes a lumbar support frame and a lumbar support cushion. The lumbar support frame is connected to the lumbar support base, and the lumbar support cushion covers the lumbar support frame.

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