Double-sided detection device for safety belt

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a double-sided detection device for a safety belt, which comprises a frame and a mounting groove, the side wall of the frame is provided with a transverse mounting cavity, the inner side wall of the mounting cavity is rotatably provided with conveying rollers for conveying the safety belt at equal intervals, and all the conveying rollers are driven by a control mechanism to rotate; the mounting grooves are vertically and symmetrically formed in the upper wall and the lower wall of the mounting cavity, a reciprocating screw rod is rotationally arranged in an inner cavity of each mounting groove, a movable block is movably arranged on a rod body of each reciprocating screw rod, and the rotating reciprocating screw rods drive the movable blocks to reciprocate in the front-back direction. According to the utility model, through the double-sided synchronous detection design, the safety belt detection efficiency is doubled, and the problem of low efficiency caused by repeated turn-over in traditional single-sided detection is avoided. The detection heads which are symmetrical up and down are matched with the reciprocating screw rod for driving, so that the full-width range of the safety belt can be covered, detection blind areas are thoroughly eliminated, double-sided defects such as cracks and abrasion are effectively detected, and the technical problem that defects are easy to omit in single-sided detection is solved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically a double-sided detection device for seat belts. Background Technology

[0002] Seat belts are crucial components for passenger safety in vehicles and other modes of transportation, and their quality and safety are paramount. During the production process, seat belts require comprehensive testing to ensure they meet relevant standards and usage requirements. Currently, most seat belt testing methods only allow for single-sided inspection, making it difficult to efficiently and accurately inspect both sides simultaneously. Single-sided inspection is not only inefficient but may also miss defects on the other side, such as cracks, wear, and stains, thus affecting the quality and safety of the seat belt. Therefore, there is a need to develop a double-sided inspection device for seat belts. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A double-sided detection device for seat belts includes a frame and a mounting slot:

[0006] The frame has a transverse mounting cavity on its side wall, and the inner side wall of the mounting cavity is rotatably equipped with conveyor rollers for conveying the safety belt at equal intervals. All of the conveyor rollers are driven to rotate by a control mechanism.

[0007] The mounting slots are symmetrically formed on the upper and lower walls of the mounting cavity. Each mounting slot has a reciprocating screw rotatably mounted inside its cavity. A movable block is movably mounted on the shaft of the reciprocating screw. The rotating reciprocating screw drives the movable block to move back and forth. Two movable blocks are fixedly mounted with detection heads for detecting seat belts on one side. The two reciprocating screws are driven to rotate by a drive mechanism.

[0008] As a preferred embodiment of the double-sided detection device for seat belts described in this utility model, the front and rear ends of each conveying roller are rotatably mounted on the inner wall of the mounting cavity via bearings, and anti-slip patterns are provided on the outer side of the shaft of each conveying roller, with the anti-slip patterns arranged along the axial direction of the conveying roller.

[0009] In a preferred embodiment of the double-sided detection device for seat belts described in this utility model, each of the conveying rollers has a connecting rod fixedly installed at its front end. The connecting rod rotatably passes through the front side wall of the frame. The control mechanism includes a worm gear fixed on each connecting rod. A bracket is fixedly installed on the front side wall of the frame. A transverse transmission rod is rotatably installed through the side wall of the bracket via a bearing. A worm gear meshing with the worm gear is installed on the shaft of the transmission rod. A first servo motor is fixedly installed on the front side wall of the frame. The output shaft of the first servo motor is connected to one end of the transmission rod via a coupling.

[0010] In a preferred embodiment of the double-sided detection device for a seat belt described in this utility model, the front and rear ends of each reciprocating lead screw are rotatably mounted on the inner wall of the mounting groove via bearings. A guide rod parallel to the reciprocating lead screw is fixedly mounted on the inner wall of the mounting groove, and the rod body of the guide rod slides through the front and rear side walls of the movable block.

[0011] In a preferred embodiment of the double-sided detection device for seat belts described in this utility model, each reciprocating lead screw has a connecting shaft fixedly installed at its rear end. The connecting shaft rotatably passes through the rear side wall of the frame. The driving mechanism includes sprockets fixed on two connecting shafts. The two sprockets are on the same vertical plane and are linked by a chain. The inner side of the chain meshes with the outer side of the sprockets. A second servo motor is fixedly installed on the rear side wall of the frame. The output shaft of the second servo motor is fixedly connected to the rear end of one connecting shaft via a coupling.

[0012] As a preferred embodiment of the double-sided detection device for seat belts described in this utility model, supplementary lights are fixedly installed on the two movable blocks facing one side, and the vertical planes where the two detection heads and supplementary lights are located are staggered with the vertical planes where each conveying roller is located.

[0013] The beneficial effects of this invention are as follows: The dual-sided synchronous detection design doubles the efficiency of seatbelt inspection, avoiding the inefficiency of traditional single-sided inspection which requires repeated flipping. The symmetrical detection heads, coupled with a reciprocating screw drive, can cover the full width of the seatbelt, completely eliminating blind spots and effectively detecting double-sided defects such as cracks and wear, thus solving the technical problem of easily missing defects in single-sided inspection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal components of the frame cross-section of this utility model;

[0017] Figure 3 This utility model Figure 2 A structural diagram viewed from below;

[0018] Figure 4 This utility model Figure 1 A schematic diagram of the structure in the side-rear view.

[0019] In the diagram: Frame 100, mounting cavity 101, conveying roller 102, connecting rod 103, worm gear 104, bracket 105, transmission rod 106, worm gear 107, first servo motor 108, mounting groove 200, reciprocating screw 201, movable block 202, detection head 203, guide rod 204, connecting shaft 205, sprocket 206, chain 207, second servo motor 208, supplementary light 209. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Please see Figures 1-4 The diagram shown is a structural schematic of an embodiment of a double-sided detection device for seat belts according to this utility model. Please refer to [link / reference]. Figures 1-4 This paper provides a detailed introduction to a double-sided detection device for seat belts.

[0025] A double-sided detection device for seat belts includes a frame 100 and a mounting groove 200.

[0026] The frame 100 has a transverse mounting cavity 101 on its side wall. The inner side wall of the mounting cavity 101 is rotatably provided with conveying rollers 102 for conveying safety belts at equal intervals. All of the conveying rollers 102 are driven to rotate by a control mechanism.

[0027] The mounting slots 200 are symmetrically formed on the upper and lower walls of the mounting cavity 101. A reciprocating screw 201 is rotatably mounted inside each mounting slot 200. A movable block 202 is movably mounted on the shaft of the reciprocating screw 201. The rotating reciprocating screw 201 drives the movable block 202 to move back and forth. A detection head 203 for detecting seat belts is fixedly mounted on one side of each of the two movable blocks 202. The two reciprocating screws 201 are driven to rotate by a drive mechanism. The detection head 203 can be an existing laser scanning detection head, which typically consists of a laser emitter, an optical scanning system, and a receiver. Its working principle is that the laser emitter emits a laser beam, which is projected onto the surface of the seat belt by the optical scanning system and rapidly scanned. When the laser shines on the surface of the seat belt, a portion of the light is reflected back and received by the receiver. The receiver converts the received reflected light signal into an electrical signal. Based on the time difference between laser emission and reception and the laser propagation speed, the distance from the laser irradiation point to the detection head can be calculated, thus obtaining the three-dimensional contour information of the seat belt surface. This device may also include a data processing unit and a display screen. The data processing unit receives and analyzes the acquired three-dimensional contour data. Cracks can cause abrupt changes in surface height, and the surface height of worn areas will differ from normal areas. By comparing the actual measured three-dimensional contour with the standard contour, these defects can be accurately detected. Furthermore, the laser scanning detection head can combine the intensity information of the reflected light to further assist in identifying surface defects such as stains, because the reflected light intensity in stained areas is usually different from that in normal areas. The data is then displayed on the screen.

[0028] Furthermore, the front and rear ends of each conveying roller 102 are rotatably mounted on the inner wall of the mounting cavity 101 via bearings, and anti-slip patterns are provided on the outer side of the shaft of each conveying roller 102, with the anti-slip patterns arranged along the axial direction of the conveying roller 102. The anti-slip patterns increase the friction between the conveying roller 102 and the seat belt, which is beneficial for conveying the seat belt.

[0029] Furthermore, a connecting rod 103 is fixedly provided at the front end of each of the conveying rollers 102. The connecting rod 103 rotatably passes through the front side wall of the frame 100. The control mechanism includes a worm gear 104 fixed on each connecting rod 103. A bracket 105 is fixedly provided on the front side wall of the frame 100. A transverse transmission rod 106 is rotatably provided through the side wall of the bracket 105 via a bearing. A worm 107 meshing with the worm gear 104 is provided on the shaft of the transmission rod 106. A first servo motor 108 is fixedly provided on the front side wall of the frame 100. The output shaft of the first servo motor 108 is connected to one end of the transmission rod 106 via a coupling. Starting the first servo motor 108 drives the transmission rod 106 to rotate, which in turn drives the worm gear 104 to rotate via the worm 107, thereby driving the connecting rod 103 and the conveying roller 102 to rotate, thus conveying the safety belt.

[0030] Furthermore, the front and rear ends of each reciprocating lead screw 201 are rotatably mounted on the inner wall of the mounting groove 200 via bearings. A guide rod 204 parallel to the reciprocating lead screw 201 is fixedly mounted on the inner wall of the mounting groove 200, and the body of the guide rod 204 slides through the front and rear side walls of the movable block 202. The guide rod 204 limits the movement of the movable block 202, ensuring that the movable block 202 can only move in the back-and-forth direction.

[0031] Furthermore, a connecting shaft 205 is fixedly provided at the rear end of each reciprocating lead screw 201. The connecting shaft 205 rotatably passes through the rear sidewall of the frame 100. The driving mechanism includes sprockets 206 fixed on the two connecting shafts 205. The two sprockets 206 are on the same vertical plane and are linked by a chain 207. The inner side of the chain 207 meshes with the outer side of the sprockets 206. A second servo motor 208 is fixedly provided on the rear sidewall of the frame 100. The output shaft of the second servo motor 208 is fixedly connected to the rear end of one of the connecting shafts 205 through a coupling. When the second servo motor 208 is started, it drives the two reciprocating lead screws 201 to rotate through the sprockets 206 and the chain 207, thereby driving the two detection heads 203 to move back and forth in the front and back directions.

[0032] Furthermore, supplementary lights 209 are fixedly installed on both movable blocks 202 facing one side, and the vertical planes where the two detection heads 203 and the supplementary lights 209 are located are staggered with the vertical planes where each conveyor roller 102 is located. The supplementary lights 209 can provide supplementary lighting for the seat belt in low-light conditions, facilitating image acquisition by the detection heads 203. The staggered arrangement of the vertical planes where the detection heads 203 and the supplementary lights 209 are located with the vertical planes where each conveyor roller 102 is located ensures that the conveyor rollers 102 do not obstruct the detection heads 203.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A double-sided detection device for seat belts, comprising a frame (100) and a mounting groove (200), characterized in that: The frame (100) has a transverse mounting cavity (101) on its side wall. The inner side wall of the mounting cavity (101) is rotatably provided with conveying rollers (102) for conveying safety belts at equal intervals. All of the conveying rollers (102) are driven to rotate by a control mechanism. The mounting slots (200) are symmetrically opened on the upper and lower walls of the mounting cavity (101). Each mounting slot (200) has a reciprocating screw (201) rotatably installed inside its cavity. A movable block (202) is movably installed on the shaft of the reciprocating screw (201). The rotating reciprocating screw (201) drives the movable block (202) to move back and forth in the front and back directions. A detection head (203) for detecting seat belts is fixedly installed on one side of the two movable blocks (202). The two reciprocating screws (201) are driven to rotate by a drive mechanism.

2. The double-sided detection device for seat belts according to claim 1, characterized in that: The front and rear ends of each conveying roller (102) are rotatably mounted on the inner wall of the mounting cavity (101) via bearings. Anti-slip patterns are provided on the outer side of the shaft of each conveying roller (102), and the anti-slip patterns are arranged along the axial direction of the conveying roller (102).

3. The double-sided detection device for seat belts according to claim 1, characterized in that: Each of the conveying rollers (102) has a connecting rod (103) fixedly installed at its front end. The connecting rod (103) rotatably passes through the front side wall of the frame (100). The control mechanism includes a worm gear (104) fixed on each connecting rod (103). A bracket (105) is fixedly installed on the front side wall of the frame (100). A transverse transmission rod (106) is rotatably installed through the side wall of the bracket (105) via a bearing. A worm (107) meshing with the worm gear (104) is installed on the rod body of the transmission rod (106). A first servo motor (108) is fixedly installed on the front side wall of the frame (100). The output shaft of the first servo motor (108) is connected to one end of the transmission rod (106) via a coupling.

4. The double-sided detection device for seat belts according to claim 1, characterized in that: The front and rear ends of each reciprocating screw (201) are rotatably mounted on the inner side wall of the mounting groove (200) via bearings. A guide rod (204) parallel to the reciprocating screw (201) is fixedly mounted on the inner side wall of the mounting groove (200). The rod body of the guide rod (204) slides through the front and rear side walls of the movable block (202).

5. A double-sided detection device for seat belts according to claim 1, characterized in that: Each of the reciprocating lead screws (201) has a connecting shaft (205) fixedly installed at its rear end. The connecting shaft (205) rotates through the rear side wall of the frame (100). The driving mechanism includes sprockets (206) fixed on the two connecting shafts (205). The two sprockets (206) are on the same vertical plane and are linked by a chain (207). The inner side of the chain (207) meshes with the outer side of the sprockets (206). A second servo motor (208) is fixedly installed on the rear side wall of the frame (100). The output shaft of the second servo motor (208) is fixedly connected to the rear end of one of the connecting shafts (205) through a coupling.

6. The double-sided detection device for seat belts according to claim 1, characterized in that: The two movable blocks (202) are fixedly equipped with supplementary lights (209) facing one side, and the vertical planes where the two detection heads (203) and supplementary lights (209) are located are staggered with the vertical planes where each conveying roller (102) is located.

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