A lumbar fixator that fits and supports the lumbar spine

Abstract

This utility model discloses a lumbar fixation device that conforms to and supports the lumbar spine. It includes multiple waist belts and an adjustment mechanism. One end of each waist belt is fixedly mounted with an installation frame. The adjustment mechanism includes a connecting frame fixedly mounted at the bottom of one of the waist belts. A connecting block is slidably connected within the connecting frame and slides against the inner wall of the connecting frame. The connecting block is fixedly mounted on another waist belt. A limiting member is installed on the connecting frame to limit the position of the connecting block. Each waist belt has a groove, within which a rotating rod is installed. A first threaded rod and a second threaded rod are fixedly mounted at both ends of the rotating rod. Installation blocks are threadedly connected to the first and second threaded rods, and a support member is installed on the installation blocks. This lumbar fixation device improves the efficiency of position adjustment by utilizing the cooperation between a worm gear, a worm wheel, multiple waist belts, a connecting frame, a connecting block, a limiting member, and a support member, while ensuring support for different positions of the lumbar spine.

Description

Technical Field

[0001] This utility model belongs to the field of lumbar fixation technology, specifically a lumbar fixation device that fits and supports the lumbar spine. Background Technology

[0002] Lumbar fixation devices that conform to the lumbar spine provide stable support by conforming to the physiological curve of the lumbar region. This reduces pressure on the intervertebral discs and surrounding muscles and ligaments, helps maintain the normal physiological curvature of the lumbar spine, and prevents further damage to the lumbar region caused by improper posture or excessive activity. They can limit excessive flexion, extension, or rotation of the lumbar region, reducing the risk of injury. Simultaneously, moderate compression promotes local blood circulation, relieves muscle tension and spasms, and reduces pain. For individuals recovering from lumbar spine surgery, suffering from lumbar muscle strain, or experiencing lumbar disc herniation, these devices can help maintain lumbar stability, create a favorable environment for tissue repair, and gradually restore lumbar function in conjunction with rehabilitation training. However, it is important to use them appropriately to avoid long-term dependence that could lead to muscle atrophy.

[0003] Traditional lumbar support devices rely on numerous buckles for angle adjustment, leading to cumbersome operation. Each adjustment requires loosening or tightening each buckle individually, which is time-consuming and makes it difficult to precisely control the tightness. Furthermore, the buckles may rub against the lumbar curve, affecting wearing comfort, especially when frequent posture adjustments are needed. This design significantly reduces usability. While using a single, excessively long belt for support can achieve overall tightening, it cannot provide differentiated support for different areas of the lumbar region. Long-term use keeps the muscles in the belted area under constant passive tension, lacking natural movement space, eventually leading to muscle stiffness, loss of elasticity and vitality, and ultimately muscle fatigue or even injury. Moreover, because it cannot specifically reinforce weak areas such as the sides of the lumbar spine and the lumbosacral region, it is difficult to create support points that meet individual needs, failing to effectively distribute local pressure and ultimately affecting the support effect. It also cannot adapt to the differences in lumbar shape and injury location among different users. Therefore, this application proposes a lumbar support device that conforms to and supports the lumbar spine. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a lumbar fixation device that fits and supports the lumbar spine, which effectively solves the problems of inconvenient adjustment and inability to effectively support different positions of the lumbar fixation device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lumbar fixation device that fits and supports the lumbar spine, comprising multiple waist belts and an adjustment mechanism. One end of each waist belt is fixedly mounted with an installation frame. The adjustment mechanism includes a connecting frame fixedly mounted at the bottom of one of the waist belts. A connecting block is slidably connected within the connecting frame and slides against the inner wall of the connecting frame. The connecting block is fixedly mounted on another waist belt. A limiting member that can limit the position of the connecting block is installed on the connecting frame. The waist belts are provided with a groove. A rotating rod is installed in the groove. A first threaded rod and a second threaded rod are fixedly mounted at both ends of the rotating rod. An installation block that is threadedly connected to the first threaded rod and the second threaded rod is sleeved on the first threaded rod and the second threaded rod. The installation block slides against the inner wall of the groove. A support member is installed on the installation block.

[0006] Preferably, a magnetic strip is fixedly installed at one end of the belt, which is opposite to the mounting frame, and a plurality of fixing blocks opposite to the magnetic strip are fixedly installed inside the mounting frame.

[0007] Preferably, the limiting member includes a groove provided on the connecting block, and a limiting bolt that slides and abuts against the inner wall of the groove is slidably connected in the groove.

[0008] Preferably, the limiting bolt passes through the connecting frame and is slidably connected to it, and a spring is fixedly installed on the limiting bolt and the connecting frame, which can drive the limiting bolt to reset.

[0009] Preferably, the support includes a through-hole that is fixedly installed on the waist belt and passes through the waist belt, and two mounting plates that slide against the inner wall of the through-hole are fixedly installed on the mounting block.

[0010] Preferably, a fixing rod located between two mounting plates is fixedly installed on the mounting plate, a linkage rod rotatably connected to the fixing rod is sleeved on the fixing rod, and a support plate is fixedly installed on the linkage rod.

[0011] Preferably, a worm gear is fitted onto the rotating rod and fixedly connected thereto, and a worm gear is rotatably connected to the belt and passes through the belt, with a turntable fitted onto the worm gear and fixedly connected thereto.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting an adjustment mechanism, and utilizing the cooperation between the first threaded rod, the second threaded rod, the worm, the worm wheel, and the support member, rotating the turntable can drive the worm to rotate. The rotation of the worm will drive the worm wheel to rotate, and the rotation of the worm wheel will drive the rotating rod to rotate. The rotating rod will drive the first threaded rod and the second threaded rod to rotate. The rotation of the first threaded rod and the second threaded rod will drive the two mounting blocks to move relative to each other. The mounting blocks will drive the two mounting plates to move. The mounting plates will drive the fixing rod to move. The fixing rod will drive the linkage rod to move. The linkage rod will drive the support plate to move to a predetermined position, thereby supporting the waist and completing the adjustment of the support plate. Moreover, the worm wheel cannot drive the worm to rotate, thus ensuring the stability of the support plate and improving the efficiency of waist fixation position adjustment. At the same time, by utilizing the cooperation between multiple waist belts, connecting frames, connecting blocks, and limiting members, the multiple waist belts are divided into upper waist, middle waist, and lower waist, which can support different waist parts, avoiding the inconvenience of human movement caused by a single waist belt support, ensuring support for different positions of the waist, and allowing the addition or removal of waist belts according to the needs of different human bodies. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the lumbar fixation device of the present invention that fits and supports the lumbar spine;

[0016] Figure 2 This is a side view of the lumbar fixation device of this utility model that fits and supports the lumbar spine;

[0017] Figure 3 This is a side sectional view of the lumbar fixation device for fitting and supporting the lumbar spine according to the present invention;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle;

[0020] In the diagram: 1. Belt; 2. Turntable; 3. Support plate; 4. Connecting frame; 5. Mounting frame; 6. Magnetic strip; 7. Fixing block; 8. Mounting plate; 9. Fixing rod; 10. Linkage rod; 11. Through-hole; 12. Groove; 13. First threaded rod; 14. Mounting block; 15. Worm gear; 16. Worm wheel; 17. Second threaded rod; 18. Rotating rod; 19. Connecting block; 20. Limit bolt; 21. Spring; 22. Slide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Depend on Figures 1-5 The present invention includes multiple waist belts 1 and an adjustment mechanism. One end of each waist belt 1 is fixedly mounted with a mounting frame 5, and another end of each waist belt 1 is fixedly mounted with a magnetic strip 6 opposite to the mounting frame 5. Multiple fixing blocks 7 opposite to the magnetic strip 6 are fixedly mounted inside the mounting frame 5. The multiple waist belts 1 are divided into upper waist, middle waist and lower waist, which can support different waist parts and avoid the inconvenience of a single waist belt 1 for human movement, which can lead to muscle stiffness and muscle damage. When wearing, the waist belts 1 can be added or removed according to the needs of different people. During installation, the fixing blocks 7 are positioned opposite to the mounting frame 5. Pushing the fixing blocks 7 will cause the fixing blocks 7 to move. The fixing blocks 7 will slide against the inner wall of the mounting frame 5. After the fixing blocks 7 move to the predetermined position, the fixing blocks 7 are put down. The fixing blocks 7 are made of magnetic material and will be attracted to the magnetic strip 6 to complete the limiting of the fixing blocks 7, thereby completing the limiting of the waist belt 1.

[0023] The adjustment mechanism includes a connecting frame 4 fixedly installed at the bottom of one of the waist belts 1. A connecting block 19 is slidably connected inside the connecting frame 4 and slides against the inner wall of the connecting frame 4. The connecting block 19 is fixedly installed on the other waist belt 1. A limiting member is installed on the connecting frame 4 to limit the connecting block 19. The limiting member includes a sliding groove 22 provided on the connecting block 19. A limiting bolt 20 is slidably connected inside the sliding groove 22 and slides against the inner wall of the sliding groove 22. The limiting bolt 20 passes through the connecting frame 4 and is slidably connected to it. A spring 21 is fixedly installed on the limiting bolt 20 and the connecting frame 4. The spring 21 can drive the limiting bolt 20 to reset.

[0024] During operation, the connecting frame 4 and the connecting block 19 are positioned opposite each other. Pushing the waist belt 1 moves the waist belt 1, which in turn moves the connecting block 19. Pulling the limit bolt 20 stretches the spring 21. When the limit bolt 20 is positioned opposite the slide groove 22, releasing the limit bolt 20 causes the spring 21 to move the limit bolt 20. The movement of the limit bolt 20 causes it to slide against the inner wall of the slide groove 22, thus limiting the connection of the connecting block 19 and completing the connection limiting of the two waist belts 1. When it is necessary to disassemble the waist belt 1, pulling the limit bolt 20 can move the limit bolt 20 and pull it out of the slide groove 22. The connecting block 19 is no longer limited, and the waist belt 1 can be pulled to complete the disassembly of the waist belt 1.

[0025] The waist belt 1 has a groove 12, and a rotating rod 18 is installed in the groove 12. A worm gear 16 is fixedly connected to the rotating rod 18. A worm 15 is rotatably connected to the waist belt 1 and passes through the waist belt 1. A turntable 2 is fixedly connected to the worm 15. A first threaded rod 13 and a second threaded rod 17 are fixedly installed at both ends of the rotating rod 18. Mounting blocks 14 are threadedly connected to the first threaded rod 13 and the second threaded rod 17. The mounting blocks 14 slide against the inner wall of the groove 12. A support is installed on the mounting blocks 14. The support includes a through-hole 11 fixedly installed on the waist belt 1 and passing through the waist belt 1. Two mounting plates 8 are fixedly installed on the mounting blocks 14 and slide against the inner wall of the through-hole 11. A fixing rod 9 located between the two mounting plates 8 is fixedly installed on the mounting plates 8. A linkage rod 10 is rotatably connected to the fixing rod 9. A support plate 3 is fixedly installed on the linkage rod 10.

[0026] During operation, rotating the turntable 2 drives the worm gear 15 to rotate. The rotation of the worm gear 15 drives the worm wheel 16 to rotate, which in turn drives the rotating rod 18 to rotate. The rotating rod 18 drives the first threaded rod 13 and the second threaded rod 17 to rotate. Because the mounting block 14 slides against the inner wall of the groove 12, the mounting block 14 cannot rotate. The two mounting blocks 14 are threadedly connected to the first threaded rod 13 and the second threaded rod 17, respectively. The rotation of the first threaded rod 13 and the second threaded rod 17 will cause the two mounting blocks 14 to move relative to each other. The mounting blocks 14 will cause the two mounting plates 8 to move. The mounting plates 8 will cause the fixing rod 9 to move. The fixing rod 9 will cause the linkage rod 10 to move. The linkage rod 10 will cause the support plate 3 to move to the predetermined position, thereby supporting the waist and completing the adjustment of the support plate 3. The worm wheel 16 cannot drive the worm gear 15 to rotate, thus ensuring the stability of the support plate 3.

[0027] Working principle: During operation, rotating the turntable 2 drives the worm gear 15 to rotate. The rotation of the worm gear 15 drives the worm wheel 16 to rotate. The rotation of the worm wheel 16 drives the rotating rod 18 to rotate. The rotating rod 18 drives the first threaded rod 13 and the second threaded rod 17 to rotate. Since the mounting block 14 slides against the inner wall of the groove 12, the mounting block 14 cannot rotate. The two mounting blocks 14 are threadedly connected to the first threaded rod 13 and the second threaded rod 17 respectively. The rotation of the first threaded rod 13 and the second threaded rod 17 will drive the two mounting blocks 14 to move relative to each other. The mounting blocks 14 will drive the two mounting plates 8 to move. The mounting plates 8 will drive the fixing rod 9 to move. The fixing rod 9 will drive the linkage rod 10 to move. The linkage rod 10 will drive the support plate 3 to move to the predetermined position, thereby supporting the waist and completing the adjustment of the support plate 3. The worm wheel 16 cannot drive the worm gear 15 to rotate, thus ensuring the stability of the support plate 3.

[0028] With the connecting frame 4 and connecting block 19 positioned opposite each other, pushing the waist belt 1 to move it will cause the connecting block 19 to move as well. Pulling the limiting bolt 20 will stretch the spring 21. When the limiting bolt 20 is positioned opposite the slide groove 22, releasing the limiting bolt 20 will cause the spring 21 to move the limiting bolt 20. The moving limiting bolt 20 will slide against the inner wall of the slide groove 22, thus limiting the connection of the two waist belts 1. When it is necessary to remove the waist belt 1, pulling the limiting bolt 20 will cause the limiting bolt to move. Move 20 to pull the limit bolt 20 out of the slide groove 22, the connecting block 19 is no longer limited, and the waist belt 1 can be pulled to complete the disassembly of the waist belt 1. Set the fixing block 7 opposite to the mounting frame 5. Pushing the fixing block 7 will cause the fixing block 7 to move. The fixing block 7 will slide against the inner wall of the mounting frame 5. After the fixing block 7 moves to the predetermined position, put down the fixing block 7. The fixing block 7 is made of magnetic material. The fixing block 7 will be attracted to the magnetic strip 6 to complete the limitation of the fixing block 7, thereby completing the limitation of the waist belt 1.

Claims

1. A lumbar support device that conforms to and supports the lumbar spine, comprising multiple lumbar belts (1) and an adjustment mechanism, characterized in that: One end of the waist belt (1) is fixedly installed with an installation frame (5); the adjustment mechanism includes a connecting frame (4) fixedly installed at the bottom of one of the waist belts (1), a connecting block (19) slidably connected in the connecting frame (4) and slidingly abutting against the inner wall of the connecting frame (4), the connecting block (19) is fixedly installed on the other waist belt (1), a limiting member that can limit the connecting block (19) is installed on the connecting frame (4), the waist belt (1) is provided with a groove (12), a rotating rod (18) is installed in the groove (12), a first threaded rod (13) and a second threaded rod (17) are fixedly installed at both ends of the rotating rod (18), an installation block (14) is sleeved on the first threaded rod (13) and the second threaded rod (17) and threadedly connected to the first threaded rod (13) and the second threaded rod (17), the installation block (14) slides against the inner wall of the groove (12), and a support member is installed on the installation block (14).

2. The lumbar fixation device for conforming to and supporting the lumbar spine according to claim 1, characterized in that: A magnetic strip (6) is fixedly installed at one end of the belt (1) and is positioned opposite to the mounting frame (5). Multiple fixing blocks (7) are fixedly installed inside the mounting frame (5) and are positioned opposite to the magnetic strip (6).

3. The lumbar fixation device for conforming to and supporting the lumbar spine according to claim 1, characterized in that: The limiting component includes a sliding groove (22) provided on the connecting block (19), and a limiting bolt (20) that slides and abuts against the inner wall of the sliding groove (22) is slidably connected in the sliding groove (22).

4. A lumbar fixation device for conforming to and supporting the lumbar spine according to claim 3, characterized in that: The limiting bolt (20) passes through the connecting frame (4) and is slidably connected to it. A spring (21) is fixedly installed on the limiting bolt (20) and the connecting frame (4). The spring (21) can drive the limiting bolt (20) to reset.

5. A lumbar fixation device for conforming to and supporting the lumbar spine according to claim 1, characterized in that: The support includes a through-hole (11) fixedly installed on the waist belt (1) and passing through the waist belt (1), and two mounting plates (8) fixedly installed on the mounting block (14) and sliding against the inner wall of the through-hole (11).

6. A lumbar fixation device for conforming to and supporting the lumbar spine according to claim 5, characterized in that: A fixing rod (9) located between two mounting plates (8) is fixedly installed on the mounting plate (8). A linkage rod (10) rotatably connected to the fixing rod (9) is sleeved on the fixing rod (9). A support plate (3) is fixedly installed on the linkage rod (10).

7. A lumbar fixation device for conforming to and supporting the lumbar spine according to claim 1, characterized in that: The rotating rod (18) is fitted with a worm gear (16) fixedly connected thereto, and the belt (1) is rotatably connected with a worm (15) that passes through the belt (1), and the worm (15) is fitted with a turntable (2) fixedly connected thereto.

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