A self-adjusting lumbar support

Abstract

This utility model relates to the field of lumbar support cushion technology and discloses a self-adjusting lumbar support, including a cushion body. The top surface and front side of the cushion body are provided with a bottom pad and a lumbar support pad, respectively. A mounting plate is provided on the front side of the cushion body, and the lumbar support pad is mounted on the front side of the mounting plate. A self-adjusting component for adaptively adjusting the position of the lumbar support pad is provided between the cushion body and the mounting plate. The self-adjusting component includes a connecting seat fixed to the front side of the cushion body. This utility model utilizes the principle that when the user's lumbar spine rests against the lumbar support pad, the springs are compressed and contract, applying a counter-elastic force to support the user's lumbar spine, thus providing elastic support and increasing user comfort. Simultaneously, because the two springs are distributed at both ends of the front side of the support frame, the lumbar support pad can also adaptively deform laterally when the user leans against it, achieving adaptive adjustment. This ensures that the lumbar support pad always fits the user's lumbar spine to prevent misalignment and further enhance user comfort.

Description

Technical Field

[0001] This utility model relates to the field of lumbar support cushion technology, and in particular to a self-adjusting lumbar support. Background Technology

[0002] Seat cushions are an indispensable part of our daily lives. With the widespread use of computers, office workers need to face computers for long periods of time. Prolonged sitting not only makes people feel tired, but also damages the spine, lumbar spine, and sciatic nerve. In severe cases, it can cause hemorrhoids, prostate problems, and other ailments.

[0003] An existing lumbar support cushion (publication number: CN222443615U) has at least the following drawbacks: the device uses a torsion spring between the backrest and the seat cushion to provide elastic support for the user's waist. However, due to the rebound of the backrest, it can only rebound in a rotational manner around the connection point with the seat cushion, which prevents the backrest from shifting to a certain extent. When the body is slightly tilted, the backrest and the user's waist will be misaligned, causing discomfort to the user. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-adjusting lumbar support.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-adjustable lumbar support includes a seat cushion body. The top and front sides of the seat cushion body are provided with a bottom pad and a lumbar support pad, respectively. A mounting plate is provided on the front side of the seat cushion body, and the lumbar support pad is mounted on the front side of the mounting plate. A self-adjusting component for adaptively adjusting the position of the lumbar support pad is provided between the seat cushion body and the mounting plate. The self-adjusting component includes a connecting seat fixed to the front side of the seat cushion body. An adjusting seat is slidably disposed inside the connecting seat. A support frame is connected to the front side of the adjusting seat. Springs are connected to the front side of the support frame near the left and right sides. Mounting washers are fixed to both ends of the springs. The two mounting washers are detachably mounted to the support frame and the mounting plate respectively by bolts.

[0007] As a further embodiment of this utility model, the inner wall of the connecting seat is provided with wave grooves on both sides, and the top and bottom ends of the adjusting seat are provided with elastic antennas. The elastic antennas are integrally formed with the adjusting seat, and the ends of the elastic antennas are cylindrical structures that cooperate with the wave grooves. A cover is detachably installed on the front side of the connecting seat by bolts, and an avoidance groove is provided on the front side of the cover.

[0008] As a further embodiment of this utility model, the front side of the adjusting seat is provided with a rectangular protrusion, and the rear side of the support frame is provided with a recess corresponding to the position of the rectangular protrusion. The rectangular protrusion fits inside the recess, and the support frame is detachably installed with the adjusting seat by bolts, with the bolts located at the center of the rectangular protrusion and the recess.

[0009] As a further embodiment of this utility model, the outer wall of the spring is movably fitted with a silicone sleeve, and the two ends of the silicone sleeve are respectively bonded and fixed to two mounting pads.

[0010] As a further embodiment of this utility model, the front and rear sides of the seat cushion body are provided with several reinforcing ribs.

[0011] As a further embodiment of this utility model, several pins are slidably inserted into the top and front surfaces of the base pad and the lumbar support pad. The top and front surfaces of the seat cushion body are provided with corresponding pin positions with locking holes. The pins have a hollow structure in the middle, and the two ends of the pins are engaged with the outer edge of the locking holes.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting a support frame between the mounting plate and the front side of the seat cushion, and setting springs at both ends of the front side of the support frame, the mounting plate and the lumbar support pad are elastically supported by the springs. When the user's waist is resting on the lumbar support pad, the springs are compressed and contracted, and apply elastic force in the opposite direction to support the user's waist, so that the user's waist is elastically supported, increasing user comfort. At the same time, since the two springs are distributed at both ends of the front side of the support frame, the lumbar support pad can also adaptively deform laterally when the user leans against it, achieving adaptive adjustment, thereby ensuring that the lumbar support pad always fits the user's waist to prevent misalignment and increase user comfort. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a self-adjusting lumbar support proposed in this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the connecting seat and support frame of a self-adjusting lumbar support proposed in this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the adjustment seat of a self-adjusting lumbar support proposed in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the mounting plate of a self-adjusting lumbar support proposed in this utility model.

[0018] In the diagram: 1. Seat cushion body; 101. Base pad; 102. Lumbar support pad; 103. Mounting plate; 2. Connecting seat; 201. Adjusting seat; 202. Support frame; 203. Spring; 204. Mounting pad; 3. Wave groove; 301. Elastic contact; 302. Cover; 303. Clearance groove; 4. Rectangular protrusion; 401. Recess; 5. Silicone sleeve; 6. Reinforcing rib; 7. Clip; 701. Clip hole. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-4As shown, a self-adjusting lumbar support includes a seat cushion body 1. A bottom pad 101 and a lumbar support pad 102 are provided on the top and front sides of the seat cushion body 1. A mounting plate 103 is provided on the front side of the seat cushion body 1, and the lumbar support pad 102 is mounted on the front side of the mounting plate 103. A self-adjusting component for adaptively adjusting the position of the lumbar support pad 102 is provided between the seat cushion body 1 and the mounting plate 103. The self-adjusting component includes a connecting seat 2 fixed to the front side of the seat cushion body 1. An adjusting seat 201 is slidably disposed inside the connecting seat 2. A support frame 202 is connected to the front side of the adjusting seat 201. Springs 203 are connected to the front side of the support frame 202 near the left and right sides. Mounting washers 204 are fixed to both ends of the springs 203. The two mounting washers 204 are respectively bolted to the support frame 202. 2. The mounting plate 103 is detachably installed. A support frame 202 is set between the mounting plate 103 and the front side of the seat cushion body 1, and springs 203 are set at both ends of the front side of the support frame 202. The mounting plate 103 and the lumbar support pad 102 are elastically supported by the springs 203. When the user's waist is pressed against the lumbar support pad 102, the springs 203 are compressed and contracted, and apply elastic force in the opposite direction to support the user's waist, so that the user's waist is elastically supported and the user's comfort is increased. At the same time, since the two springs 203 are distributed at both ends of the front side of the support frame 202, the lumbar support pad 102 can also adaptively deform laterally when the user leans against the side, so as to achieve adaptive adjustment, thereby ensuring that the lumbar support pad 102 always fits the user's waist to prevent misalignment and increase user comfort.

[0023] like Figures 2-4 As shown in this embodiment, the inner wall of the connecting seat 2 is provided with wave grooves 3 on both sides. The top and bottom ends of the adjusting seat 201 are provided with elastic antennas 301, which are integrally formed with the adjusting seat 201. The ends of the elastic antennas 301 are cylindrical and cooperate with the wave grooves 3. A cover 302 is detachably installed on the front side of the connecting seat 2 by bolts. An avoidance groove 303 is provided on the front side of the cover 302. When the lumbar support pad 102 does not match the user's waist position... When installing, the user grasps the mounting plate 103 and moves it up and down. At this time, the mounting plate 103 drives the adjusting seat 201 to slide inside the connecting seat 2. At this time, the elastic antenna 301 of the adjusting seat 201 slides along the groove surface of the wave groove 3 and is continuously squeezed and deformed by the wave groove 3. The elastic antenna 301 also continuously rebounds under its own elasticity. When the user adjusts the lumbar support pad 102 to the required height, the elastic antenna 301 and the wave groove 3 are re-elastically engaged, so that the adjusting seat 201 and the lumbar support pad 102 are automatically locked in the current position.

[0024] like Figures 2-4As shown in this embodiment, a rectangular protrusion 4 is provided on the front side of the adjustment seat 201, and a recess 401 is provided on the rear side of the support frame 202 corresponding to the rectangular protrusion 4. The rectangular protrusion 4 fits inside the recess 401. The support frame 202 is detachably installed with the adjustment seat 201 by bolts. The bolts are located at the center of the rectangular protrusion 4 and the recess 401. When the support frame 202 and the adjustment seat 201 are installed, the rectangular protrusion 4 and the recess 401 are engaged inside, so that the adjustment seat 201 can limit the support frame 202 and the lumbar support pad 102, preventing the support frame 202 and the lumbar support pad 102 from rotating due to force when used by the user, which would cause the connecting bolts between the support frame 202 and the adjustment seat 201 to loosen and fall off. At the same time, it prevents the lumbar support pad 102 from being misaligned with the user's waist, causing discomfort to the user.

[0025] like Figures 2-4 As shown in this embodiment, the outer wall of the spring 203 is movably fitted with a silicone sleeve 5. The two ends of the silicone sleeve 5 are respectively bonded and fixed to two mounting pads 204. By setting the silicone sleeve 5, the spring 203 can be isolated and protected.

[0026] like Figures 2-4 As shown in this embodiment, the front and rear sides of the seat cushion body 1 are provided with a number of reinforcing ribs 6. By providing reinforcing ribs 6, the toughness and strength of the seat cushion body 1 can be increased.

[0027] like Figures 2-4 As shown in this embodiment, several clips 7 are slidably inserted into the top and front surfaces of the base pad 101 and the lumbar support pad 102. A locking hole 701 is provided on the top and front surfaces of the seat cushion body 1 at the positions corresponding to the clips 7. The clips 7 have a hollow center, and both ends are engaged with the outer edge of the locking hole 701. By setting the clips 7, the base pad 101, the lumbar support pad 102, and the seat cushion body 1 are locked and fixed to the connecting seat 2, ensuring the stability and reliability of the installation of the base pad 101 and the lumbar support pad 102. By setting the clips 7 to have a hollow center and both ends engaged with the outer edge of the locking hole 701, the user can move the two ends of the clips 7 to retract them into the locking hole 701, thereby removing the clips 7 and disassembling the lumbar support pad 102 and the seat cushion body 1 for cleaning and replacement.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, the user first sits on the seat cushion body 1, and then the user's waist rests on the lumbar support cushion 102. When the lumbar support cushion 102 does not match the user's waist position, the user grasps the mounting plate 103 and moves it up and down. At this time, the mounting plate 103 drives the adjusting seat 201 to slide inside the connecting seat 2. At this time, the elastic antenna 301 of the adjusting seat 201 slides along the groove surface of the wave groove 3 and is continuously squeezed and deformed by the wave groove 3. The elastic antenna 301 then continuously rebounds under its own elasticity. After the user adjusts the lumbar support pad 102 to the desired height, the elastic contact 301 and the wave groove 3 re-engage elastically, thereby automatically locking the adjusting seat 201 and the lumbar support pad 102 in the current position. Then, the user's lower back rests fully against the lumbar support pad 102. At this time, the spring 203 is compressed and contracts, applying a reverse elastic force to support the user's lower back, providing elastic support and increasing user comfort. Simultaneously, because the two springs 203 are distributed at both ends of the front side of the support frame 202, the lumbar support pad 102 can also adaptively deform laterally when the user leans against it, achieving self-adaptive... Adjustment ensures that the lumbar support pad 102 always fits snugly against the user's waist, preventing misalignment and increasing user comfort. When the support frame 202 and adjustment seat 201 are installed, the rectangular protrusion 4 and recess 401 engage internally, allowing the adjustment seat 201 to limit the movement of the support frame 202 and lumbar support pad 102. This prevents the support frame 202 and lumbar support pad 102 from rotating under pressure during user use, which could cause the connecting bolts between the support frame 202 and adjustment seat 201 to loosen and fall off. It also prevents misalignment of the lumbar support pad 102 with the user's waist, causing discomfort. The silicone sleeve 5 further helps to maintain this position. Spring 203 serves as an isolation and protection mechanism. The reinforcing rib 6 increases the toughness and strength of the seat cushion body 1. The clip 7 secures the base pad 101, the lumbar support pad 102, and the seat cushion body 1 to the connecting seat 2, ensuring the stability and reliability of the installation of the base pad 101 and the lumbar support pad 102. The clip 7 has a hollow structure in the middle, and both ends of the clip 7 are engaged with the outer edge of the clip hole 701, allowing the user to move both ends of the clip 7 to retract the clip 7 into the clip hole 701, thereby removing the clip 7 and disassembling the lumbar support pad 102 and the seat cushion body 1 for cleaning and replacement.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A self-adjusting waist support comprising a seat cushion body (1), characterized in that, The top surface and front side of the seat cushion body (1) are provided with a bottom pad (101) and a lumbar support pad (102). The front side of the seat cushion body (1) is provided with a mounting plate (103). The lumbar support pad (102) is installed on the front side of the mounting plate (103). A self-adjusting component for adaptively adjusting the position of the lumbar support pad (102) is provided between the seat cushion body (1) and the mounting plate (103). The self-adjusting component includes a connecting seat (2) fixed on the front side of the seat cushion body (1). An adjusting seat (201) is slidably provided inside the connecting seat (2). A support frame (202) is connected to the front side of the adjusting seat (201). A spring (203) is connected to the front side of the support frame (202) near the left and right sides. Mounting pads (204) are fixed at both ends of the springs (203). The two mounting pads (204) are detachably installed to the support frame (202) and the mounting plate (103) respectively by bolts.

2. The self-adjusting waist support of claim 1, wherein, The inner wall of the connecting seat (2) is provided with wave grooves (3) on both sides. The top and bottom ends of the adjusting seat (201) are provided with elastic antennas (301). The elastic antennas (301) are integrally formed with the adjusting seat (201). The end of the elastic antenna (301) is cylindrical. The end of the elastic antenna (301) cooperates with the wave groove (3). The front side of the connecting seat (2) is detachably installed with a cover (302) by bolts. The front side of the cover (302) is provided with a clearance groove (303).

3. A self-adjusting waist support according to claim 2, wherein, The front side of the adjustment seat (201) is provided with a rectangular protrusion (4), and the rear side of the support frame (202) is provided with a recess (401) corresponding to the rectangular protrusion (4). The rectangular protrusion (4) fits inside the recess (401). The support frame (202) is detachably installed with the adjustment seat (201) by bolts. The bolts are located at the center of the rectangular protrusion (4) and the recess (401).

4. A self-adjusting lumbar support according to claim 3, characterized in that, The outer wall of the spring (203) is movably fitted with a silicone sleeve (5), and the two ends of the silicone sleeve (5) are respectively bonded and fixed to two mounting pads (204).

5. A self-adjusting lumbar support according to claim 4, characterized in that, The front and rear sides of the seat cushion body (1) are provided with several reinforcing ribs (6).

6. A self-adjusting lumbar support according to claim 5, characterized in that, The top and front sides of the base pad (101) and the lumbar support pad (102) are slidably fitted with several clips (7). The top and front sides of the seat body (1) are provided with clip holes (701) corresponding to the positions of the clips (7). The middle of the clips (7) is hollow, and the two ends of the clips (7) are engaged with the outer edge of the clip holes (701).

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