Automatic tension adjusting device for safety belt braid

Abstract

The utility model discloses an automatic tension adjusting device for a safety belt braid. The automatic tension adjusting device comprises a rack, a pulling assembly, a machining platen, a furling frame and an anti-disengaging assembly. A transverse reinforcing plate is mounted at the bottom of the rack, a lithium ion battery storage box is mounted on one side of the upper surface of the transverse reinforcing plate, a pulling assembly is mounted on the other side of the upper surface of the transverse reinforcing plate, a machining table plate is mounted at the top of the rack through a rotating seat, and an anti-disengaging assembly is mounted on one side of the lower surface of the machining table plate. A first adjusting frame and a second adjusting frame are installed on the upper surface of the machining table plate, a limiting guide frame is fixed to the upper surface of the machining table plate and located between the first adjusting frame and the second adjusting frame, and a furling frame is fixed to the upper surface of the machining table plate. An operator can easily adjust the tension of the safety belt body to meet different machining requirements, so that the machining flexibility is improved, and the stability of the product quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety belt processing production application, concretely is a safety belt braid tension automatic regulating device. BACKGROUND

[0002] Safety belt as the important safety device in the car, its main function is when the vehicle suddenly decelerates or collides, through limiting the movement of the wearer's body to reduce the harm, when emergency braking or frontal, side impact, safety belt can firmly fix the passenger on the seat, prevent them from being thrown out of the car due to inertia forward, side or even; Limitation can significantly reduce the risk of passenger and the hard material in the car collision, thereby reducing the head, neck, chest and other body parts injury, safety belt can also prevent the passenger from the secondary collision in the car to a certain extent, that is, the passenger collides with the hard material such as steering wheel, instrument panel, windshield in the car. The design of safety belt usually includes a braid, lock, retractor and fixed point, the retractor can quickly tighten the braid in emergency to fix the passenger's body, and provide a certain buffer effect when the passenger body leans forward, and the conventional safety belt is usually composed of fiber braid, retractor, lock and buckle and other components, the conventional safety belt has limitations in tension adjustment, and the tension of the braid cannot be automatically adjusted according to the body shape or riding posture of the passenger, which may cause the safety belt to fail to provide the best protection effect when the accident occurs, therefore we propose a safety belt braid tension automatic regulating device. SUMMARY

[0003] The utility model is purposed at providing a safety belt braid tension automatic regulating device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides following technical scheme: a safety belt braid tension automatic regulating device, including frame, pull assembly, processing table board, limit guide frame, safety belt body, reel frame and anti -drop subassembly, the bottom of frame is equipped with horizontal reinforcing plate, horizontal reinforcing plate can effectively increase the bearing capacity and deformation resistance of frame bottom, thereby promote the stability and durability of whole frame, the upper surface side of horizontal reinforcing plate is equipped with lithium ion battery storage box, lithium ion battery storage box is used for storing power supply lithium ion battery, guarantees that the device is still normal work under the condition of lacking external power supply, has improved the portability and flexibility of device, the upper surface other side of horizontal reinforcing plate is equipped with pull assembly, and pull assembly is responsible for driving the movement of safety belt braid, its design is exquisite, and the rotary power of motor is converted into linear pull through inside transmission mechanism, to realize the accurate regulation of safety belt braid tension, the top of frame is installed processing table board through rotating seat, and the design of processing table board is convenient for various processing treatment to safety belt braid, such as cutting, sewing or inspection etc., simultaneously, through the flexible rotation of rotating seat, processing table board can be adjusted to the appropriate angle to adapt to different operation demand, further improve the practicability and operation convenience of device, the lower surface side of processing table board is equipped with anti -drop subassembly, and anti -drop subassembly can effectively prevent the safety belt body from falling or deviating during processing or adjusting, ensure the safety and stability of operation, the upper surface of processing table board is installed first adjusting frame and second adjusting frame, and the design of first adjusting frame and second adjusting frame makes them can be adjusted according to different safety belt braid width and type, to realize the accurate control of braid tension, the upper surface of processing table board is fixed with limit guide frame, and limit guide frame plays the key guiding role, ensures that safety belt braid moves according to the predetermined path during processing, avoids the processing failure caused by deviation or misplacement, the cooperative work of these components not only improves the processing efficiency, but also guarantees the processing quality, and limit guide frame is located between first adjusting frame and second adjusting frame, simultaneously, first adjusting frame and second adjusting frame and limit guide frame all adopt high -strength material to manufacture, ensure their durability and stability, further prolong the service life of whole device, the upper surface of processing table board is fixed with reel frame, and the design of reel frame, it not only can safely and orderly reel safety belt body, but also can release quickly when needed, convenient for operating personnel to carry out next processing or detection work, the safety belt body passes first adjusting frame, limit guide frame, second adjusting frame and reel frame from left to right in proper order, and such layout design not only makes the path of safety belt body more definite and smooth during processing, but also ensures that each component can give full play to its function, the whole device realizes the automatic regulation of safety belt braid tension through such ingenious design, greatly improves the processing efficiency and product quality, simultaneously also reduces the operation difficulty and labor intensity, has very high practical value and application prospect.

[0005] Preferably, guide grooves are formed on the first adjusting frame and the second adjusting frame, and a screw-down part is mounted on the top of the first adjusting frame, which is designed to facilitate the adjustment of the tension of the safety belt body on the first adjusting frame; the guide grooves ensure that the safety belt body does not deviate from the predetermined path during processing, further improving the accuracy and stability of processing; through the cooperation of the screw-down part and the guide grooves, the operator can easily adjust the tension of the safety belt body to adapt to different processing needs, which not only improves the flexibility of processing, but also ensures the stability of product quality.

[0006] Preferably, a warning light, a tool storage box and a PLC controller are mounted on the upper surface of the rack, and the PLC controller is located below the warning light and the tool storage box; the warning light is designed to timely remind the operator to pay attention to the safety state, such as when the device fails or the safety belt body tension is abnormal, the warning light will automatically light up to attract the attention of the operator, thereby avoiding potential safety hazards; the tool storage box provides space to store commonly used tools and spare parts, so that the operator can quickly find the required tools when needed, improving work efficiency; and the PLC controller as the control core of the entire device is responsible for receiving sensor signals, processing data and issuing control instructions, achieving accurate control and coordinated operation of each component of the device, ensuring the stability and reliability of the device.

[0007] Preferably, a pulling hydraulic cylinder is provided on the pulling assembly, and a pressure display screen is mounted on the front surface of the pulling hydraulic cylinder, which can display the working pressure of the pulling hydraulic cylinder in real time, so that the operator can intuitively understand the working state of the pulling assembly; when the working pressure exceeds the preset range, the pressure display screen will issue a warning signal to remind the operator to adjust in time, thereby avoiding equipment damage or processing quality problems caused by excessive or insufficient working pressure; in addition, the design of the pressure display screen also facilitates equipment maintenance and troubleshooting by the operator, improving the use efficiency and life of the equipment; a circular ring is mounted on the output end of the pulling hydraulic cylinder, the circular ring is connected with an anti-dropping ring, and the anti-dropping ring is fixedly connected with the safety belt body, which ensures that the pulling hydraulic cylinder can stably pull the safety belt body during driving, preventing it from falling off or being damaged due to excessive tension. As a connecting intermediary, the circular ring not only provides sufficient connection strength, but also ensures the stability of transmission; the anti-dropping ring further enhances the safety of the connection, effectively preventing accidental falling of the safety belt body even in extreme conditions, thereby improving the safety performance of the entire device; through accurate control of the pulling assembly, the operator can quickly and accurately adjust the tension of the safety belt body to adapt to different processing needs.

[0008] Preferably, the limiting guide frame is provided with a U-shaped frame, and adjusting bolts are installed on both sides of the U-shaped frame. L-shaped fixing plates are installed on the adjusting bolts, and tightening screws are installed on the L-shaped fixing plates. The design of the tightening screws allows the L-shaped fixing plates to tightly fit on both sides of the U-shaped frame, ensuring the stability and firmness of the structure. By rotating the tightening screws, the operator can easily adjust the position of the L-shaped fixing plates, thereby realizing the fine adjustment of the U-shaped frame to adapt to safety belt webbings of different sizes or shapes. This design not only improves the versatility of the device, but also makes the installation and adjustment process more convenient and efficient. The combination of the L-shaped fixing plates and the tightening screws not only enhances the stability of the structure, but also provides a reliable support point for subsequent safety belt webbing tension adjustment. By precisely controlling the position of the L-shaped fixing plates, the operator can realize fine adjustment of the safety belt webbing tension, ensuring its stability and safety during the processing. First and second adjusting guide rods are installed on the top adjusting groove of the U-shaped frame, and tightening nuts are installed at the bottom of the first and second adjusting guide rods. The design of the tightening nuts allows the first and second adjusting guide rods to be firmly fixed in the adjusting groove of the U-shaped frame, and they are not easy to loosen or displace. By adjusting the tightness of the tightening nuts, the operator can easily control the position of the first and second adjusting guide rods in the adjusting groove, thereby realizing further fine adjustment of the safety belt webbing tension. This design not only improves the stability and reliability of the device, but also provides more adjustment options for the operator, allowing them to flexibly adjust the working state of the device according to actual needs. In addition, the installation of the first and second adjusting guide rods provides stable support for the guidance of the safety belt webbing, which helps to maintain its stability and straightness during the processing.

[0009] Preferably, the anti-off assembly is provided with an anti-off fixing seat, and an adjusting screw is installed on the anti-off fixing seat, the design of the adjusting screw enables the operator to further fine-tune the anti-off assembly to ensure its stability and reliability during operation; by rotating the adjusting screw, the operator can adjust the contact pressure and friction between the anti-off assembly and the safety belt webbing, thereby achieving precise control of the safety belt webbing tension; this design not only improves the adaptability and flexibility of the device, but also provides the operator with more adjustment means, enabling them to quickly adjust the working state of the device according to actual needs; in addition, the anti-off fixing seat provides stable support for the adjusting screw, helping to maintain its stability and durability during operation; one end of the adjusting screw is installed with an adjusting tightening disc, the other side of the adjusting screw is installed with a push block, a safety belt body is threaded through the push block, a tension spring is sleeved on the adjusting screw, the design of the adjusting tightening disc enables the operator to easily rotate the adjusting screw without the need for additional tools, thereby simplifying the operation process; and the push block allows the operator to manually adjust or fix the position of the safety belt body when necessary, enhancing the flexibility and practicality of the device; the tension spring is sleeved on the adjusting screw, which plays a certain buffering and resetting role; when the adjusting screw is adjusted by rotation, the tension spring can maintain a certain tension, helping to maintain the stability after adjustment; at the same time, when the device is subjected to external force or vibration, the tension spring can absorb part of the energy, protecting the adjusting screw and other components from damage and prolonging the service life of the device.

[0010] Compared with the prior art, the utility model has the advantages of the following:

[0011] 1、The utility model discloses a limiting guide frame plays a key guiding role, ensures safety belt webbing in the processing according to the predetermined path movement, avoids the processing failure caused by the deviation or misplacement, the cooperation of these components not only improves the processing efficiency, but also guarantees the processing quality, and the limiting guide frame is located between the first adjusting frame and the second adjusting frame, simultaneously, the first adjusting frame and the second adjusting frame and the limiting guide frame all adopt high -strength material manufacturing, ensure their durability and stability, further prolong the service life of whole device.

[0012] 2,The utility model discloses L type fixed sheet and the combination of screw rod, not only strengthened the stability of structure, still provided reliable support point for the safety belt braid tension adjustment of subsequent, through the accurate control of L type fixed sheet's position, and the operator can realize the fine adjustment of safety belt braid tension, ensure its stability and security in the processing, the first adjusting guide rod and the second adjusting guide rod are installed on the top adjusting groove of U type frame, and the bottom of first adjusting guide rod and second adjusting guide rod is installed with screw nut, and the design of screw nut makes first adjusting guide rod and second adjusting guide rod can be firmly fixed in the adjusting groove of U type frame, and it is not easy to loosen or displace. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is whole structure schematic diagram of the utility model;

[0014] Figure 2 It is bottom view of the utility model;

[0015] Figure 3 It is limit guide frame schematic diagram of the utility model;

[0016] In the drawing: 1, rack;2, rotating seat;3, lithium ion battery storage box;4, cross stiffening plate;5, pull assembly;51, pressure display screen;52, pull hydraulic cylinder;53, round ring;54, anti-drop ring;6, processing platform;7, first adjusting frame;8, guide groove;9, screw down piece;10, limit guide frame;101, U type frame;102, L type fixed sheet;103, screw rod;104, first adjusting guide rod;105, adjusting groove;106, second adjusting guide rod;107, screw nut;11, second adjusting frame;12, safety belt body;13, winding frame;14, warning light;15, tool storage box;16, PLC controller;17, anti-drop assembly;171, adjusting screw disc;172, anti-drop fixed base;173, adjusting screw;174, tension spring;175, dial block. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be further explained in connection with the drawings and specific embodiments below.

[0018] Embodiment one

[0019] As Figures 1-3As shown, the utility model provides an embodiment: a safety belt braid tension automatic regulating device, including frame 1, pull assembly 5, processing platform 6, limit guide frame 10, safety belt body 12, reel frame 13 and anti -drop subassembly 17, the bottom of frame 1 is installed with horizontal reinforcing plate 4, horizontal reinforcing plate 4 can effectively increase the bearing capacity and deformation resistance of frame 1 bottom, thereby promote the stability and durability of whole frame 1, the upper surface one side of horizontal reinforcing plate 4 is installed with lithium ion battery storage box 3, lithium ion battery storage box 3 is used to store the lithium ion battery of power supply, guarantees the device still can normally work under the condition of lacking external power supply, has improved the portability and flexibility of device, the upper surface other side of horizontal reinforcing plate 4 is installed with pull assembly 5, and pull assembly 5 is responsible for driving the movement of safety belt braid, its design is exquisite, and the rotary power of motor is converted into linear pull through inside transmission mechanism, to realize the accurate regulation of safety belt braid tension, the top of frame 1 is installed with processing platform 6 through rotating seat 2, the design of processing platform 6 is convenient for the various processing of safety belt braid, such as cutting, sewing or inspection, simultaneously, through the flexible rotation of rotating seat 2, processing platform 6 can be adjusted to the appropriate angle to adapt to different operation needs, further improve the practicability and operation convenience of device, the lower surface one side of processing platform 6 is installed with anti -drop subassembly 17, and anti -drop subassembly 17 can effectively prevent safety belt body 12 from slipping or deviating during processing or adjusting, ensure the safety and stability of operation, the upper surface of processing platform 6 is installed with first adjusting frame 7 and second adjusting frame 11, and the design of first adjusting frame 7 and second adjusting frame 11 makes them can be adjusted according to different safety belt braid width and type, to realize the accurate control of braid tension, the upper surface of processing platform 6 is fixed with limit guide frame 10, and limit guide frame 10 plays the key guiding role, ensures that safety belt braid moves along the predetermined path during processing, avoids the processing failure caused by deviation or misplacement, the cooperative work of these components not only improves the processing efficiency, but also guarantees the processing quality, and limit guide frame 10 is located between first adjusting frame 7 and second adjusting frame 11, simultaneously, first adjusting frame 7 and second adjusting frame 11 and limit guide frame 10 all adopt high-strength material to manufacture, ensure their durability and stability, further prolong the service life of whole device, the upper surface of processing platform 6 is fixed with reel frame 13, and the design of reel frame 13, it not only can safely and orderly reel safety belt body 12, but also can release quickly when needed, convenient for operating personnel to carry out next processing or detection work, the safety belt body 12 passes first adjusting frame 7, limit guide frame 10, second adjusting frame 11 and reel frame 13 from left to right in proper order, and such layout design not only makes the path of safety belt body 12 more definite and smooth during processing, but also ensures that each component can give full play to its function.The whole device is designed in such a way that the automatic adjustment of the safety belt fabric tension is realized, the processing efficiency and product quality are greatly improved, the operation difficulty and labor intensity are reduced, and the device has high practical value and application prospect.

[0020] Embodiment two

[0021] As Figure 1 shown, compared with embodiment one, the safety belt fabric tension automatic adjustment device further comprises guide grooves 8 formed on the first adjusting frame 7 and the second adjusting frame 11, and a screw-down part 9 is mounted on the top of the first adjusting frame 7, which can conveniently adjust the tension of the safety belt body 12 on the first adjusting frame 7; and the guide grooves 8 ensure that the safety belt body 12 does not deviate from the predetermined path during processing, further improving the processing accuracy and stability; through the cooperation of the screw-down part 9 and the guide grooves 8, the operator can easily adjust the tension of the safety belt body 12 to adapt to different processing requirements, which not only improves the flexibility of processing, but also ensures the stability of product quality.

[0022] In this embodiment, as Figure 1 shown, the upper surface of the rack 1 is mounted with a warning light 14, a tool storage box 15 and a PLC controller 16, and the PLC controller 16 is located below the warning light 14 and the tool storage box 15; the design of the warning light 14 can timely remind the operator to pay attention to the safety state, such as when the device fails or the safety belt body 12 tension is abnormal, the warning light 14 will automatically light up to attract the attention of the operator, so as to avoid potential safety hazards; the tool storage box 15 provides space for storing common tools and spare parts, so that the operator can quickly find the required tools when needed, improving the work efficiency; and the PLC controller 16 as the control core of the whole device is responsible for receiving sensor signals, processing data and issuing control instructions, realizing the accurate control and coordinated operation of each component of the device, ensuring the stability and reliability of the device.

[0023] In this embodiment, as Figure 1 and Figure 2As shown, the pulling assembly 5 is equipped with a pulling hydraulic cylinder 52. A pressure display screen 51 is mounted on the front surface of the pulling hydraulic cylinder 52. The pressure display screen 51 can display the working pressure of the pulling hydraulic cylinder 52 in real time, allowing the operator to intuitively understand the working status of the pulling assembly 5. When the working pressure exceeds the preset range, the pressure display screen 51 will issue a warning signal to remind the operator to make timely adjustments, thereby avoiding equipment damage or processing quality problems caused by excessive or insufficient working pressure. In addition, the design of the pressure display screen 51 also facilitates equipment maintenance and troubleshooting by the operator, improving the efficiency and lifespan of the equipment. A circular ring 53 is installed on the output end of the pulling hydraulic cylinder 52. The circular ring 53 is connected to an anti-detachment ring 54, and the anti-detachment ring 54 is fixedly connected to the safety belt body 12. This design ensures that the pulling hydraulic cylinder 52 can stably pull the safety belt body 12 during the driving process, preventing it from falling off or being damaged due to excessive tension. The circular ring 53, acting as a connecting medium, not only provides sufficient connection strength but also ensures smooth transmission. The anti-detachment ring 54 further enhances the safety of the connection, effectively preventing the seat belt body 12 from accidentally falling off even in extreme situations, thereby improving the safety performance of the entire device. Through precise control of the pulling component 5, the operator can quickly and accurately adjust the tension of the seat belt body 12 to adapt to different processing requirements.

[0024] In this embodiment, as Figure 3As shown, the limiting guide frame 10 is provided with a U-shaped frame 101, and the two sides of the U-shaped frame 101 are mounted with adjusting bolts, and an L-shaped fixing plate 102 is mounted on the adjusting bolts, and a rotating screw 103 is mounted on the L-shaped fixing plate 102. The design of the rotating screw 103 enables the L-shaped fixing plate 102 to tightly fit on the two sides of the U-shaped frame 101, ensuring the stability and firmness of the structure. By rotating the rotating screw 103, the operator can conveniently adjust the position of the L-shaped fixing plate 102, and then realize the fine adjustment of the U-shaped frame 101, so as to adapt to safety belt webbings of different sizes or shapes. This design not only improves the universality of the device, but also makes the installation and adjustment process more convenient and efficient. The combination of the L-shaped fixing plate 102 and the rotating screw 103 not only enhances the stability of the structure, but also provides a reliable support point for subsequent safety belt webbing tension adjustment. By accurately controlling the position of the L-shaped fixing plate 102, the operator can realize fine adjustment of the safety belt webbing tension, ensuring its stability and safety during processing. The top adjusting groove 105 of the U-shaped frame 101 is mounted with a first adjusting guide rod 104 and a second adjusting guide rod 106, and the bottom of the first adjusting guide rod 104 and the second adjusting guide rod 106 is mounted with a rotating nut 107. The design of the rotating nut 107 enables the first adjusting guide rod 104 and the second adjusting guide rod 106 to be firmly fixed in the adjusting groove 105 of the U-shaped frame 101, and is not easy to loosen or displace. By adjusting the tightness of the rotating nut 107, the operator can conveniently control the position of the first adjusting guide rod 104 and the second adjusting guide rod 106 in the adjusting groove 105, so as to realize further fine adjustment of the safety belt webbing tension. This design not only improves the stability and reliability of the device, but also provides more adjustment options for the operator, enabling him to flexibly adjust the working state of the device according to actual needs. In addition, the setting of the first adjusting guide rod 104 and the second adjusting guide rod 106 also provides stable support for the guidance of the safety belt webbing, which helps to maintain its stability and straightness during processing.

[0025] In this embodiment, as Figure 2As shown, the anti-off assembly 17 is provided with an anti-off fixing seat 172, and an adjusting screw 173 is installed on the anti-off fixing seat 172. The design of the adjusting screw 173 allows the operator to further fine-tune the anti-off assembly 17 to ensure its stability and reliability during work. By rotating the adjusting screw 173, the operator can adjust the contact pressure and friction between the anti-off assembly 17 and the safety belt webbing, thereby achieving precise control of the safety belt webbing tension. This design not only improves the adaptability and flexibility of the device, but also provides the operator with more adjustment means, allowing them to quickly adjust the working state of the device according to actual needs. In addition, the anti-off fixing seat 172 provides stable support for the adjusting screw 173, helping to maintain its stability and durability during work. One end of the adjusting screw 173 is installed with an adjusting tightening disc 171, and the other side of the adjusting screw 173 is installed with a push block 175, and the safety belt body 12 is threaded through the push block 175. A tension spring 174 is sleeved on the adjusting screw 173. The design of the adjusting tightening disc 171 allows the operator to easily rotate the adjusting screw 173 without the need for additional tools, thereby simplifying the operation process. The push block 175 allows the operator to manually adjust or fix the position of the safety belt body 12 when necessary, enhancing the flexibility and practicality of the device. The tension spring 174 is sleeved on the adjusting screw 173, providing a certain buffering and resetting effect. When the adjusting screw 173 is rotated and adjusted, the tension spring 174 can maintain a certain tension, helping to maintain the stability after adjustment. At the same time, when the device is subjected to external force or vibration, the tension spring 174 can absorb part of the energy, protecting the adjusting screw 173 and other components from damage, prolonging the service life of the device.

[0026] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A safety belt webbing tension automatic adjusting device, comprising a rack (1), a pulling assembly (5), a processing table plate (6), a limiting guide frame (10), a safety belt body (12), a winding frame (13) and an anti-off assembly (17); characterized in that: The bottom of the rack (1) is provided with a transverse reinforcing plate (4), the upper surface of the transverse reinforcing plate (4) is provided with a lithium ion battery storage box (3) on one side, and the upper surface of the transverse reinforcing plate (4) is provided with a pulling assembly (5) on the other side; the top of the rack (1) is provided with a processing table plate (6) through a rotating seat (2), the lower surface of the processing table plate (6) is provided with an anti-dropping assembly (17) on one side, the upper surface of the processing table plate (6) is provided with a first adjusting frame (7) and a second adjusting frame (11), the upper surface of the processing table plate (6) is fixed with a limiting guide frame (10), and the limiting guide frame (10) is located between the first adjusting frame (7) and the second adjusting frame (11); the upper surface of the processing table plate (6) is fixed with a winding frame (13), and the safety belt body (12) passes through the first adjusting frame (7), the limiting guide frame (10), the second adjusting frame (11) and the winding frame (13) in sequence from left to right.

2. The automatic seat belt webbing tension adjuster of claim 1, wherein: The first adjusting frame (7) and the second adjusting frame (11) are provided with guide grooves (8), and the top of the first adjusting frame (7) is provided with a screwing down piece (9).

3. The automatic seat belt webbing tension adjuster of claim 1, wherein: The upper surface of the rack (1) is provided with a warning lamp (14), a tool storage box (15) and a PLC controller (16), and the PLC controller (16) is located below the warning lamp (14) and the tool storage box (15).

4. The automatic seat belt tensioner according to claim 1, wherein: The pulling assembly (5) is provided with a pulling hydraulic cylinder (52), the front surface of the pulling hydraulic cylinder (52) is provided with a pressure display screen (51), the output end of the pulling hydraulic cylinder (52) is provided with a circular ring (53), the circular ring (53) is connected with an anti-dropping ring (54), and the anti-dropping ring (54) is fixedly connected with the safety belt body (12).

5. The automatic seat belt tensioner according to claim 1, wherein: The limiting guide frame (10) is provided with a U-shaped frame (101), the two sides of the U-shaped frame (101) are provided with adjusting bolts, the adjusting bolts are provided with L-shaped fixing plates (102), the L-shaped fixing plates (102) are provided with screw rods (103), the top of the U-shaped frame (101) is provided with a first adjusting guide rod (104) and a second adjusting guide rod (106) in the adjusting grooves (105), and the bottoms of the first adjusting guide rod (104) and the second adjusting guide rod (106) are provided with screw nuts (107).

6. The automatic seat belt tensioner according to claim 1, wherein: The anti-dropping assembly (17) is provided with an anti-dropping fixing seat (172), the anti-dropping fixing seat (172) is provided with an adjusting screw rod (173), one end of the adjusting screw rod (173) is provided with an adjusting screwing disc (171), the other side of the adjusting screw rod (173) is provided with a pushing block (175), the safety belt body (12) passes through the pushing block (175), and the adjusting screw rod (173) is sleeved with a tension spring (174).

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