Safety belt with self-locking function

Abstract

The utility model relates to the technical field of safety belts, in particular to a safety belt with a self-locking function. A storage groove is formed in a storage block, a fixing shaft is fixed to the surface of the inner wall of the storage groove, the outer surface of the fixing shaft is sleeved with a spring piece, the outer surface of the spring piece is sleeved with a safety belt, a self-locking groove is formed in a self-locking block, a driven shaft is arranged on the inner wall of the self-locking groove, and a first rotating shaft is fixed to the outer surface of the driven shaft. The self-locking safety belt has the beneficial effects that when a fixing part at the through groove in the outer side end of the self-locking block is damaged, limiting of the safety belt is relieved, the safety belt in the storage groove is rapidly pulled out, and the rapid pulling-out of the safety belt can drive a driven shaft to rotate at a high speed; the first positioning block and the second positioning block are clamped in the limiting block, at the moment, the driven shaft cannot rotate, and therefore the safety belt stops being pulled out of the containing groove, and the self-locking function of the safety belt is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety belts, in particular to a safety belt with a self-locking function. Background Technique

[0002] A safety belt is a personal protective equipment worn by workers during high-altitude operations to prevent them from falling and protect them from avoiding or reducing injuries caused by falling.

[0003] In the prior art, a safety belt is a common high-altitude protection facility, which plays an important role in the safety of workers. One end of the safety belt is wound around the human body, and the other end is provided with a hook to prevent the worker from falling during high-altitude operations.

[0004] However, the traditional high-altitude safety belt is directly fixed at the hook. When the worker moves, the safety belt is entirely pulled by manpower. When the worker is physically exhausted, it is easy to fall, posing a safety hazard. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety belt with a self-locking function to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A safety belt with a self-locking function, the safety belt with a self-locking function includes:

[0007] A storage block, a storage groove is opened inside the storage block, a fixed shaft is fixed on the inner wall surface of the storage groove, a spring piece is sleeved on the outer surface of the fixed shaft, and a connecting belt is sleeved on the outer surface of the spring piece;

[0008] A self-locking block, a self-locking groove is opened inside the self-locking block, a driven shaft is arranged on the inner wall of the self-locking groove, and a first rotating shaft is fixed on the outer surface of the driven shaft.

[0009] Preferably, one end of the spring piece is fixed on the outer surface of the fixed shaft, the other end of the spring piece is fixed at the end of the connecting belt, the other end of the connecting belt is provided with a safety belt, the storage block is fixedly connected with the self-locking block, and a through groove is opened at the connection between the storage block and the self-locking block, and the through groove penetrates through the outside of the self-locking block.

[0010] Preferably, a limiting block is fixed on the side surface of the inner wall of the self-locking groove, a driven shaft is movably arranged on the front surface of the inner wall of the self-locking groove, a fixed block is fixed on the outer surface of the driven shaft near the end, a first rotating shaft is fixed on the side surface of the inner wall of the fixed block, and fixed blocks are fixed on the outer surfaces of both ends of the driven shaft, which are symmetrically distributed.

[0011] Preferably, two sets of fixing blocks are fixed on the outer surface of one end of the driven shaft. A first positioning block is sleeved on the outer surface of one set of first rotating shafts, a torsion spring is sleeved on the outer surface of the other set of first rotating shafts, a second positioning block is arranged on the outer surface of the torsion spring, and a connecting block is arranged between the first positioning block and the second positioning block.

[0012] Preferably, the first positioning blocks, the second positioning blocks and the connecting blocks at both ends of the driven shaft are symmetrically distributed. Second positioning holes and first positioning holes are formed on the outer surface of the first positioning block, second positioning holes and first positioning holes are formed on the outer surface of the second positioning block, and a second rotating shaft is fixed on the inner side surface of the connecting block.

[0013] Preferably, there are two sets of the second rotating shafts, and the two sets of second rotating shafts are symmetrically distributed on the inner side surface of the connecting block. One set of the second rotating shafts is clamped in the second positioning holes formed on the outer surface of the first positioning block, and the other set of the second rotating shafts is clamped in the second positioning holes formed on the outer surface of the second positioning block, showing a movable connection.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In addition, during high-altitude operations, when the fixing piece at the through groove on the outer side end of the self-locking block is damaged, the limit of the connecting belt is released. Due to the gravity of the worker himself, the connecting belt in the storage groove will be quickly pulled out. The quick pulling out of the connecting belt will drive the high-speed rotation of the driven shaft. Due to the centrifugal force, the first positioning block and the second positioning block will rotate around the first rotating shaft, so that the first positioning block and the second positioning block are clamped in the limit block. Under the limitation of the first positioning block and the second positioning block, the driven shaft will not rotate at this time, so that the connecting belt stops being pulled out from the storage groove, realizing the self-locking function of the safety belt and preventing the worker from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic sectional view of the self-locking component structure of the present utility model;

[0018] Figure 3 is a schematic sectional view of the storage structure of the present utility model;

[0019] Figure 4 is a schematic sectional view of the driven shaft structure of the present utility model;

[0020] Figure 5 is a schematic diagram of the first positioning block structure of the present utility model;

[0021] Figure 6 is a schematic diagram of the second positioning block structure of the present utility model;

[0022] Figure 7This is a schematic structural diagram of the connecting block of the present utility model.

[0023] In the figure: 1. Connecting belt; 2. Self-locking block; 3. Receiving block; 4. Spring piece; 5. First positioning block; 6. Driven shaft; 7. Second positioning block; 8. Connecting block; 9. Receiving groove; 10. Fixed shaft; 11. Through groove; 12. Self-locking groove; 13. Limiting block; 14. Fixed block; 15. First rotating shaft; 16. Torsion spring; 17. Second positioning hole; 18. First positioning hole; 19. Second rotating shaft; 20. Specific embodiments

[0024] In order to clearly and completely describe the purpose, technical solution of the present invention and make the advantages more clearly understood, the following further details the embodiments of the present invention with reference to the drawings. It should be understood that the specific embodiments described herein are some embodiments of the present invention, not all embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0025] Embodiment 1: Please refer to Figures 1 to 7 , the present utility model provides a technical solution: a seat belt with a self-locking function, a receiving block 3, a receiving groove 9 is opened inside the receiving block 3, a fixed shaft 10 is fixed on the inner wall surface of the receiving groove 9, and a spring piece 4 is sleeved on the outer surface of the fixed shaft 10. When it is necessary to reduce the length of the connecting belt 1, the fixing member at the through groove 11 on the outer side end of the self-locking block 2 is contacted, and the spring piece 4 will automatically retract the connecting belt 1 into the receiving groove 9 when it resets, and the connecting belt 1 is sleeved on the outer surface of the spring piece 4.

[0026] A self-locking groove 12 is opened inside the self-locking block 2, a driven shaft 6 is arranged on the inner wall of the self-locking groove 12, a first rotating shaft 15 is fixed on the outer surface of the driven shaft 6, the limit of the connecting belt 1 is released, and due to the gravity of the worker himself, the connecting belt 1 in the receiving groove 9 will be quickly pulled out. The quick pulling out of the connecting belt 1 will drive the high-speed rotation of the driven shaft 6. Due to the centrifugal force, the first positioning block 5 and the second positioning block 7 will rotate around the first rotating shaft 15, so that the first positioning block 5 and the second positioning block 7 are clamped in the limiting block 13. Under the limitation of the first positioning block 5 and the second positioning block 7, the driven shaft 6 will not rotate at this time, so that the connecting belt 1 stops being pulled out from the receiving groove 9, realizing the self-locking function of the seat belt 20.

[0027] On the basis of the first embodiment, in order to realize the self-locking function of the seat belt 20, one end of the spring piece 4 is fixed on the outer surface of the fixed shaft 10, the other end of the spring piece 4 is fixed on the end of the connecting belt 1, the receiving block 3 is fixedly connected with the self-locking block 2, a through groove 11 is provided at the connection between the receiving block 3 and the self-locking block 2, the through groove 11 penetrates through the outer side of the self-locking block 2, and a fixing member is fixed at the through groove 11 on the outer side of the self-locking block 2. The fixing member at the through groove 11 at the outer end of the self-locking block 2 is removed, so as to remove the limit of the connecting belt 1.

[0028] A limiting block 13 is fixed on the inner wall side surface of the self-locking groove 12. The first positioning block 5 and the second positioning block 7 are clamped in the limiting block 13. Under the limitation of the first positioning block 5 and the second positioning block 7, the driven shaft 6 will not rotate at this time, so that the connecting belt 1 stops being pulled out from the receiving groove 9, realizing the self-locking function of the connecting belt 1. The driven shaft 6 is movably arranged on the front surface of the inner wall of the self-locking groove 12. A fixing block 14 is fixed on the outer surface of the end of the driven shaft 6. A first rotating shaft 15 is fixed on the inner wall side surface of the fixing block 14. Fixing blocks 14 are fixed on the outer surfaces of both ends of the driven shaft 6, showing a symmetrical distribution.

[0029] Two groups of fixing blocks 14 are fixed on the outer surface of one end of the driven shaft 6. A first positioning block 5 is sleeved on the outer surface of one group of first rotating shafts 15, a torsion spring 16 is sleeved on the outer surface of the other group of first rotating shafts 15, a second positioning block 7 is arranged on the outer surface of the torsion spring 16, and a connecting block 8 is arranged between the first positioning block 5 and the second positioning block 7.

[0030] The first positioning blocks 5, the second positioning blocks 7 and the connecting blocks 8 at both ends of the driven shaft 6 are symmetrically distributed. Second positioning holes 17 and first positioning holes 18 are provided on the outer surface of the first positioning block 5. Second positioning holes 17 and first positioning holes 18 are provided on the outer surface of the second positioning block 7. A second rotating shaft 19 is fixed on the inner side surface of the connecting block 8.

[0031] There are two groups of second rotating shafts 19. The two groups of second rotating shafts 19 are symmetrically distributed on the inner side surface of the connecting block 8. One group of second rotating shafts 19 is clamped in the second positioning holes 17 provided on the outer surface of the first positioning block 5, and the other group of second rotating shafts 19 is clamped in the second positioning holes 17 provided on the outer surface of the second positioning block 7, showing a movable connection.

[0032] The specific solution is as follows: A fixing member is provided at the through groove 11 at the outer end of the self-locking block 2. The fixing member can be fixedly connected to the connecting belt 1 to restrict it when the connecting belt 1 extends, and does not restrict it when the connecting belt 1 is stored. When the distance between the construction site and the hook is greater than the length of the safety belt 20, first fix the storage block 3 at the hook, and then release the fixing member at the through groove 11 at the outer end of the self-locking block 2, so as to release the limit of the connecting belt 1. At this time, pulling the connecting belt 1 can pull out the connecting belt 1 wound in the storage groove 9. When it is necessary to reduce the length of the connecting belt 1, since the fixing member at the through groove 11 at the outer end of the self-locking block 2 does not restrict the storage of the connecting belt 1, the spring piece 4 will automatically reset to store the connecting belt 1 into the storage groove 9, realizing the adjustable length of the connecting belt 1. Then fix the safety belt 20 on the connecting belt 1 with the adjusted length, so as not to affect the use of the safety belt 20; in addition, during high-altitude operations, when the fixing member at the through groove 11 at the outer end of the self-locking block 2 is damaged, the limit of the connecting belt 1 is released. Due to the worker's own gravity, the connecting belt 1 in the storage groove 9 will be quickly pulled out. The rapid pulling out of the connecting belt 1 will drive the high-speed rotation of the driven shaft 6. Due to the centrifugal force, the first positioning block 5 and the second positioning block 7 will rotate around the first rotating shaft 15, so that the first positioning block 5 and the second positioning block 7 are clamped in the limiting block 13. Under the restriction of the first positioning block 5 and the second positioning block 7, the driven shaft 6 will not rotate at this time, so that the connecting belt 1 stops being pulled out from the storage groove 9, realizing the self-locking function of the connecting belt 1. And since the first positioning block 5 and the second positioning block 7 are made of light materials, they will be clamped in the limiting block 13 within an extremely short time when the driven rotating shaft 6 rotates at a high speed, and the worker will only descend a very short height, realizing the self-locking function of the safety belt 20; in addition, when it is necessary to release the self-locking, due to the bending angle at the clamping position of the first positioning block 5, the second positioning block 7 and the limiting block 13, it is first necessary to rotate the driven rotating shaft 6 in the reverse direction, and then the torsion spring 16 at the second positioning block 7 will automatically drive the first positioning block 5 and the second positioning block 7 to reset, realizing the release of the self-locking of the safety belt 20.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seat belt with a self-locking function, characterized in that: The seat belt with a self-locking function includes: A storage block (3), a storage groove (9) is formed inside the storage block (3), a fixed shaft (10) is fixed on the inner wall surface of the storage groove (9), a spring piece (4) is sleeved on the outer surface of the fixed shaft (10), and a connecting belt (1) is sleeved on the outer surface of the spring piece (4); A self-locking block (2), a self-locking groove (12) is formed inside the self-locking block (2), a driven shaft (6) is arranged on the inner wall of the self-locking groove (12), and a first rotating shaft (15) is fixed on the outer surface of the driven shaft (6).

2. The seat belt with a self-locking function according to claim 1, wherein: One end of the spring piece (4) is fixed on the outer surface of the fixed shaft (10), the other end of the spring piece (4) is fixed at the end of the connecting belt (1), a seat belt (20) is arranged at the other end of the connecting belt (1), the storage block (3) is fixedly connected with the self-locking block (2), and a through groove (11) is formed at the connection between the storage block (3) and the self-locking block (2), and the through groove (11) penetrates through the outer side of the self-locking block (2).

3. The seat belt with a self-locking function according to claim 2, characterized in that: A limiting block (13) is fixed on the side surface of the inner wall of the self-locking groove (12), a driven shaft (6) is movably arranged on the front surface of the inner wall of the self-locking groove (12), a fixing block (14) is fixed on the outer surface of the driven shaft (6) near the end, a first rotating shaft (15) is fixed on the side surface of the inner wall of the fixing block (14), and fixing blocks (14) are fixed on the outer surfaces of both ends of the driven shaft (6), and are symmetrically distributed.

4. A seat belt with a self-locking function according to claim 3, characterized in that: Two groups of fixing blocks (14) are fixed on the outer surface of one end of the driven shaft (6), a first positioning block (5) is sleeved on the outer surface of one group of first rotating shafts (15), a torsion spring (16) is sleeved on the outer surface of the other group of first rotating shafts (15), a second positioning block (7) is arranged on the outer surface of the torsion spring (16), and a connecting block (8) is arranged between the first positioning block (5) and the second positioning block (7).

5. A seat belt with a self-locking function according to claim 4, characterized in that: The first positioning blocks (5), the second positioning blocks (7) and the connecting blocks (8) at both ends of the driven shaft (6) are symmetrically distributed, a second positioning hole (17) and a first positioning hole (18) are formed on the outer surface of the first positioning block (5), a second positioning hole (17) and a first positioning hole (18) are formed on the outer surface of the second positioning block (7), and a second rotating shaft (19) is fixed on the inner side surface of the connecting block (8).

6. The seat belt with a self-locking function according to claim 5, characterized in that: There are two groups of the second rotating shafts (19), the two groups of second rotating shafts (19) are symmetrically distributed on the inner side surface of the connecting block (8), one group of the second rotating shafts (19) is clamped in the second positioning hole (17) formed on the outer surface of the first positioning block (5), and the other group of the second rotating shafts (19) is clamped in the second positioning hole (17) formed on the outer surface of the second positioning block (7), and are movably connected.

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