Automobile safety belt retractor

Abstract

The utility model provides an automobile safety belt retractor which comprises a safety belt retracting structure, the safety belt retracting structure comprises a retracting wheel, a first auxiliary groove is formed in the middle of the retracting wheel, a second auxiliary groove is formed in the inner wall of the first auxiliary groove, pushing rings are connected to the two sides of the outer wall of the retracting wheel in a sliding mode, and side strips are arranged on the outer wall of the retracting wheel. A pushing spring is arranged on the outer wall of the side strip, and one end of the pushing spring is connected with the pushing ring. The safety belt winding device is reasonable in design, safety belt braids with different widths can be wound through the safety belt winding structure, meanwhile, when the braids are wound on the outer wall of the winding wheel, the pushing spring pushes the pushing ring to move inwards to fix the braids wound on the outer wall of the winding wheel, and deviation between the braids is avoided.

Description

Technical Field

[0001] The utility model mainly relates to the field of seat belt production, and particularly relates to a vehicle seat belt retractor. Background Art

[0002] A seat belt is a safety component used on equipment. It is a belt used to ensure safety when taking an aircraft or other flying vehicles, or during high-altitude operations and art performances. The main raw materials are polyester, polypropylene, and nylon. A seat belt does not only refer to the webbing. In addition to the webbing, a seat belt is assembled with other components.

[0003] During the production process of the seat belt webbing, a retractor is required to wind up the seat belt webbing, which facilitates subsequent cutting or other processing of the seat belt webbing.

[0004] The inventor found the following defects during the operation of specific embodiments:

[0005] However, when the seat belt is wound around the surface of the retractor, when the width of the retractor is greater than the width of the seat belt webbing, the seat belt webbing will be misaligned on the surface of the retractor, affecting subsequent processing of the seat belt.

[0006] It should be noted that the above content belongs to the technical cognition scope of the inventor. Due to the vast and complex technical content in this field, the above content of this application does not necessarily constitute the prior art. Summary of the Utility Model

[0007] 1. Technical problems to be solved by the utility model:

[0008] The utility model provides a vehicle seat belt retractor to solve the technical problems existing in the above background art.

[0009] 2. Technical solutions:

[0010] To achieve the above object, the technical solution provided by the utility model is: a vehicle seat belt retractor, including a retractor support frame structure, a seat belt guiding structure is rotatably connected inside the retractor support frame structure, and a seat belt winding structure is arranged on the outer wall of the retractor support frame structure;

[0011] The seat belt winding structure includes a winding wheel, a first auxiliary groove is opened in the middle of the winding wheel, a second auxiliary groove is opened on the inner wall of the first auxiliary groove, two sides of the outer wall of the winding wheel are slidably connected with a pushing ring, a side strip is arranged on the outer wall of the winding wheel, a pushing spring is arranged on the outer wall of the side strip, and one end of the pushing spring is connected with the pushing ring;

[0012] The seat belt retracting structure is installed inside the retractor support frame structure, and then the retractor support frame structure drives the seat belt retracting structure to rotate, so that the seat belt retracting structure winds the seat belt webbing around the outer wall of the retracting wheel, and the side strip pushes the pushing ring to move inwards to squeeze the webbing, and the distance between the two pushing rings is adjustable, so that webbings of different widths can be retracted. The seat belt guiding structure is mainly used to guide the webbing.

[0013] Further, the retractor support frame structure includes a support frame body, side support frames are arranged at both ends of the support frame body, a servo motor is arranged on one side of the side support frame, a transmission shaft is arranged at the output end of the servo motor, a positioning hole is opened in the inner wall of the transmission shaft, and a limiting groove is opened in the inner wall of the positioning hole.

[0014] Further, a plug rod is rotatably connected to one side of the side support frame, a limiting strip is arranged on the outer wall of the plug rod, one end of the plug rod fits with the positioning hole, and the limiting strip is engaged with the positioning hole.

[0015] Further, the seat belt guiding structure includes a spring telescopic rod, the spring telescopic rod is arranged at the top of the support frame body, a guiding ring is arranged at the top of the spring telescopic rod, a guiding plate is arranged on one side of the guiding ring, and an installation groove is opened in the middle of the guiding plate.

[0016] Further, sliding blocks are arranged on both sides of the inner wall of the installation groove, clamping grooves are opened on both sides inside the sliding blocks, the sliding blocks are slidably connected to the installation groove through the clamping grooves, and a return spring is arranged between the sliding blocks and the installation groove.

[0017] Further, a rotating rod is rotatably connected to the bottom of the sliding block, a lifting plate is rotatably connected between the two rotating rods, and a positioning wheel is rotatably connected to the middle of the lifting plate.

[0018] 3. Beneficial effects:

[0019] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0020] The seat belt retracting structure provided by the present utility model can retract seat belt webbings of different widths. At the same time, when the webbing is wound around the outer wall of the retracting wheel, the pushing spring pushes the pushing ring to move inwards to fix the webbing wound around the outer wall of the retracting wheel, avoiding the offset between the webbings;

[0021] The seat belt retracting structure is installed on the outer wall of the plug rod inside the retractor support frame structure, and then the plug rod is inserted into the positioning hole at one end of the servo transmission shaft, which is convenient for the subsequent servo motor to drive the seat belt retracting structure installed on the outer wall through the transmission shaft and the plug rod to retract the webbing;

[0022] Thread the webbing through the inside of the installation groove and fit it against the bottom of the positioning wheel. When the webbing is not taut, the return spring pushes the slider to move, and the slider pushes the lifting plate downward through the rotating rod. The lifting plate pushes the positioning wheel upward, causing the positioning wheel to push the webbing taut, facilitating the subsequent winding of the webbing around the outer wall of the take-up wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 is a three-dimensional unfolded structural schematic diagram of the take-up device support frame structure of the present utility model;

[0025] Figure 3 is a three-dimensional structural schematic diagram of the seat belt guiding structure of the present utility model;

[0026] Figure 4 is a three-dimensional structural schematic diagram of the seat belt take-up structure of the present utility model.

[0027] REFERENCE NUMERALS:

[0028] 1. Take-up device support frame structure; 101. Support frame body; 102. Side support frame; 103. Servo motor; 104. Transmission shaft; 105. Positioning hole; 106. Limiting groove; 107. Insertion rod; 108. Limiting strip; 2. Seat belt guiding structure; 201. Spring telescopic rod; 202. Guide ring; 203. Guide plate; 204. Installation groove; 205. Slider; 206. Card slot; 207. Return spring; 208. Rotating rod; 209. Lifting plate; 210. Positioning wheel; 3. Seat belt take-up structure; 301. Take-up wheel; 302. First auxiliary groove; 303. Second auxiliary groove; 304. Pushing ring; 305. Side strip; 306. Pushing spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0032] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation", "provided with", "provided in" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Embodiment

[0033] Referring to the attached Figures 1-4 , an automobile seat belt retractor, comprising a retractor support frame structure 1, a seat belt guiding structure 2 is rotatably connected inside the retractor support frame structure 1, and a seat belt retracting structure 3 is arranged on the outer wall of the retractor support frame structure 1;

[0034] The seat belt retracting structure 3 includes a retracting wheel 301. A first auxiliary groove 302 is formed in the middle of the retracting wheel 301. A second auxiliary groove 303 is formed in the inner wall of the first auxiliary groove 302. Push rings 304 are slidably connected to both sides of the outer wall of the retracting wheel 301. Side bars 305 are arranged on the outer wall of the retracting wheel 301. Push springs 306 are arranged on the outer walls of the side bars 305. One end of each push spring 306 is connected to a push ring 304;

[0035] The seat belt retractor structure 3 is installed inside the retractor support frame structure 1, and then the retractor support frame structure 1 drives the seat belt retractor structure 3 to rotate, so that the seat belt retractor structure 3 winds the seat belt webbing around the outer wall of the retractor wheel 301, and the side strip 305 pushes the push ring 304 to move inward to squeeze the webbing. Moreover, the distance between the two push rings 304 is adjustable, and webbings with different widths can be retracted. The seat belt guiding structure 2 is mainly used to guide the webbing.

[0036] Further, for the retractor support frame structure 1, it includes a support frame body 101. Both ends of the support frame body 101 are provided with side support frames 102. One side of the side support frame 102 is provided with a servo motor 103. The output end of the servo motor 103 is provided with a transmission shaft 104. A positioning hole 105 is opened in the inner wall of the transmission shaft 104. A limiting groove 106 is opened in the inner wall of the positioning hole 105. One side of the side support frame 102 is rotatably connected with a plug rod 107. A limiting strip 108 is arranged on the outer wall of the plug rod 107. One end of the plug rod 107 fits with the positioning hole 105, and the limiting strip 108 is engaged with the positioning hole 105. When it is necessary to retract the seat belt webbing, first install the seat belt retractor structure 3 on the outer wall of the plug rod 107, then the second auxiliary groove 303 and the limiting strip 108, and then one end of the plug rod 107 is inserted into the positioning hole 105. Then the limiting strip 108 fits with the limiting groove 106. Then start the servo motor 103. The servo motor 103 drives the transmission shaft 104 to rotate, so that the transmission shaft 104 drives the plug rod 107 to rotate through the limiting groove 106 and the limiting strip 108, and the plug rod 107 drives the seat belt retractor structure 3 on the outer wall to rotate for retracting the webbing.

[0037] Further, the seat belt guiding structure 2 includes a spring telescopic rod 201. The spring telescopic rod 201 is arranged at the top of the support frame body 101. A guiding ring 202 is arranged at the top of the spring telescopic rod 201. A guiding plate 203 is arranged on one side of the guiding ring 202. An installation groove 204 is formed in the middle of the guiding plate 203. Sliders 205 are arranged on both sides of the inner wall of the installation groove 204. Card slots 206 are formed on both sides inside the sliders 205. The sliders 205 are slidably connected with the installation groove 204 through the card slots 206. A return spring 207 is arranged between the sliders 205 and the installation groove 204. The bottom of the slider 205 is rotatably connected with a rotating rod 208. A lifting plate 209 is rotatably connected between the two rotating rods 208. A positioning wheel 210 is rotatably connected in the middle of the lifting plate 209. The outer wall of the winding wheel 301 is attached to the guiding ring 202. When the webbing is wound around the outer wall of the winding wheel 301, the webbing on the outer wall of the winding wheel 301 will push the guiding ring 202 to move downward and extrude the spring telescopic rod 201. At the same time, the webbing passes through the guiding plate 203 and is attached to the bottom of the positioning wheel 210. When the webbing is not tightened, the return spring 207 pushes the slider 205 to move inward. Then the slider 205 pushes the rotating rod 208 to rotate. The rotating rod 208 pushes the lifting plate 209 to move downward. The lifting plate 209 pushes the positioning wheel 210 to move downward, so that the positioning wheel 210 pushes the webbing to be tightened.

[0038] The above embodiments only represent a certain implementation manner of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A vehicle seat belt retractor, characterized in that: including a retractor support frame structure (1), inside which a seat belt guiding structure (2) is rotatably connected, and on the outer wall of the retractor support frame structure (1), a seat belt retracting structure (3) is provided; the seat belt retracting structure (3), which includes a retracting wheel (301), in the middle of the retracting wheel (301), a first auxiliary groove (302) is opened, on the inner wall of the first auxiliary groove (302), a second auxiliary groove (303) is opened, on both sides of the outer wall of the retracting wheel (301), a pushing ring (304) is slidably connected, on the outer wall of the retracting wheel (301), side strips (305) are provided, on the outer wall of the side strips (305), a pushing spring (306) is provided, and one end of the pushing spring (306) is connected to the pushing ring (304); The seat belt retracting structure (3) is installed inside the retractor support frame structure (1), and then the retractor support frame structure (1) drives the seat belt retracting structure (3) to rotate, so that the seat belt retracting structure (3) winds the seat belt webbing around the outer wall of the retracting wheel (301), and the side strips (305) push the pushing ring (304) to move inwards to squeeze the webbing, and the distance between the two pushing rings (304) is adjustable, so that webbings of different widths can be retracted. The seat belt guiding structure (2) is mainly used for guiding the webbing.

2. The retractor of an automotive seat belt according to claim 1, wherein: The retractor support frame structure (1), which includes a support frame body (101), at both ends of the support frame body (101), side support frames (102) are provided, on one side of the side support frames (102), a servo motor (103) is provided, at the output end of the servo motor (103), a transmission shaft (104) is provided, in the inner wall of the transmission shaft (104), a positioning hole (105) is opened, and in the inner wall of the positioning hole (105), a limiting groove (106) is opened.

3. The vehicle seat belt retractor according to claim 2, wherein: On one side of the side support frame (102), a plug rod (107) is rotatably connected, on the outer wall of the plug rod (107), a limiting strip (108) is provided, and one end of the plug rod (107) fits with the positioning hole (105), and the limiting strip (108) is engaged with the positioning hole (105).

4. A vehicle seat belt retractor according to claim 1, characterized in that: The seat belt guiding structure (2), which includes a spring telescopic rod (201), the spring telescopic rod (201) is arranged at the top of the support frame body (101), at the top of the spring telescopic rod (201), a guiding ring (202) is provided, on one side of the guiding ring (202), a guiding plate (203) is provided, and in the middle of the guiding plate (203), an installation groove (204) is opened.

5. The vehicle seat belt retractor according to claim 4, wherein: On both sides of the inner wall of the installation groove (204), sliders (205) are provided, in both sides of the sliders (205), clamping grooves (206) are opened, the sliders (205) are slidably connected with the installation groove (204) through the clamping grooves (206), and a return spring (207) is arranged between the sliders (205) and the installation groove (204).

6. The vehicle seat belt retractor according to claim 5, characterized in that: The bottom of the slider (205) is rotatably connected to a rotating rod (208), and a lifting plate (209) is rotatably connected between the two rotating rods (208). A positioning wheel (210) is rotatably connected to the middle of the lifting plate (209).

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