Wear test equipment for safety belt

Abstract

The utility model discloses a safety belt wear test device, which relates to the technical field of safety belt wear test and comprises a box body, a friction block is fixedly connected to the middle of the top surface of the box body, a sliding groove is formed in the top surface of the friction block, a friction strip is vertically and movably arranged in the sliding groove, and a transmission assembly is arranged on the inner side of the box body. According to the utility model, the servo motor is started to drive the driving gear so as to drive the driven gear, so that the connecting rod moves left and right, and the safety belt is driven to be pulled left and right, so that the friction simulation effect of the safety belt during active pulling is simulated; the screw rod is rotated by rotating the hand wheel, so that the screw rod is matched with the threaded hole in the friction strip, and the height of the friction strip in the sliding groove can be adjusted; when the friction strip is higher than the sliding groove, the safety belt rubs at one point; when the friction strip is lower than the sliding groove, the safety belt rubs two point positions; therefore, a plurality of friction points are added, the test of the safety belt is more comprehensive, and the data accuracy of the wear test of the safety belt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat belt wear testing, in particular to a seat belt wear testing device. Background Art

[0002] The earliest seat belt wear test method was conducted through manual experiments; people used artificial simulation of vehicle driving conditions, fixed the seat belts in a clamp, and manually pulled the seat belts to simulate the pulling force during normal use.

[0003] Most of the current seat belt wear test equipment consists of a reciprocating mechanism and a friction device to perform wear tests on each point of the seat belt; however, this type of seat belt wear test equipment can only rub one point of the seat belt and cannot adjust the friction point of the seat belt according to the existing situation, resulting in the test points of the seat belt being not comprehensive enough, affecting the accuracy of the seat belt wear test performance; therefore, the above problems need to be improved. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a safety belt wear test device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a seat belt wear testing device, comprising a box body, a friction block is fixedly connected to the middle of the top surface of the box body, a slide groove is opened on the top surface of the friction block, a friction strip is vertically movable in the slide groove, and a transmission assembly is provided on the inside of the box body.

[0006] Preferably, the transmission assembly includes a servo motor fixedly connected to the bottom surface of the rear end of the casing, a driving gear is installed at the front end of the driving shaft of the servo motor, the two driven gears are meshed with the driving gear, and a connecting block is provided at the rear end of the driven gear, the connecting block is rotatably connected to the driven gear, and the bottom surface of the connecting block is fixedly connected to the bottom surface of the casing.

[0007] Preferably, a plurality of equidistant guide grooves are longitudinally provided on the bottom surface of the slide groove, a threaded hole cooperating with a screw is provided on the top surface of the rear end of the friction strip, a hand wheel is fixedly connected to the top surface of the screw, and the lower end of the screw is rotatably connected to the bottom surface of the slide groove, and a plurality of equidistant guide rods are longitudinally fixedly connected to the bottom surface of the friction strip, and the guide rods are arranged in the guide groove.

[0008] Preferably, a connecting rod is vertically provided at the front end of the driven gear, the lower end of the connecting rod is rotatably connected to the bottom surface of the box body through a hinge seat, and a limiting ring is provided in the middle of the connecting rod, the limiting ring moves up and down on the connecting rod, and the rear end of the limiting ring is rotatably connected to the upper side of the driven gear.

[0009] Preferably, a safety belt is fixedly connected to the rear side of the upper end of the connecting rod, and the middle part of the safety belt abuts against the friction strip.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model starts the servo motor to drive the driving gear and then the driven gear, drives the movement of the connecting rod through the limit block on the driven gear, and moves the connecting rod left and right through the hinge seat at the lower end of the connecting rod, thereby driving the safety belt to be pulled left and right, so as to simulate the friction simulation effect of the safety belt when it is actively pulled; by turning the hand wheel to rotate the screw rod, the screw rod cooperates with the threaded hole on the friction strip, and the height of the friction strip in the slide groove can be adjusted; when the friction strip is higher than the slide groove, the safety belt is rubbed at one point; when the friction strip is lower than the slide groove, the safety belt is rubbed at two points; thus, multiple friction points are added, making the test of the safety belt more comprehensive and improving the accuracy of the data for the wear test of the safety belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0013] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0014] Figure 3 It is a front view cross-sectional structural schematic diagram of the utility model;

[0015] Figure 4 It is a side cross-sectional structural schematic diagram of the utility model.

[0016] Serial numbers in the figure: 1. Box body; 2. Friction block; 3. Friction strip; 4. Screw; 5. Hand wheel; 6. Guide rod; 7. Servo motor; 8. Driving gear; 9. Driven gear; 10. Hinge seat; 11. Connecting rod; 12. Limiting ring; 13. Safety belt. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Example: See Figure 1-4The utility model is a kind of seat belt wear test equipment, including a box body 1, through which the transmission assembly is conveniently covered; a friction block 2 is fixedly connected to the middle of the top surface of the box body 1, through which the seat belt 13 is conveniently rubbed at two corners; a slide groove is opened on the top surface of the friction block 2, and a friction strip 3 is vertically movable in the slide groove, through which the seat belt 13 is conveniently rubbed at one corner; a transmission assembly is arranged on the inner side of the box body 1. The transmission assembly includes a servo motor 7 fixedly connected to the bottom surface of the rear end of the box body 1, through which the servo motor 7 is convenient to rotate the driving gear 8; the front end of the driving shaft of the servo motor 7 is installed with a driving gear 8, through which the driving gear 8 is convenient to rotate the driven gear 9, and through which the driven gear 9 is convenient to adjust the position of the connecting rod 11; the two driven gears 9 are meshed with the driving gear 8, and a connecting block is arranged at the rear end of the driven gear 9, the connecting block is rotatably connected with the driven gear 9, and the bottom surface of the connecting block is fixedly connected to the bottom surface of the box body 1.

[0019] In the utility model, a plurality of equidistant guide grooves are longitudinally provided on the bottom surface of the slide groove, and the friction strip 3 can be easily raised and lowered through the guide grooves; a threaded hole cooperating with the screw rod 4 is provided on the top surface of the rear end of the friction strip 3, and the height of the friction strip 3 can be easily adjusted through the rotation of the screw rod 4; a hand wheel 5 is fixedly connected to the top surface of the screw rod 4, and the screw rod 4 can be easily rotated through the hand wheel 5; and the lower end of the screw rod 4 is rotatably connected to the bottom surface of the slide groove, and a plurality of equidistant guide rods 6 are longitudinally fixedly connected to the bottom surface of the friction strip 3, and the guide rods 6 prevent the friction strip 3 from deflecting; the guide rods 6 are arranged in the guide groove. A connecting rod 11 is vertically arranged at the front end of the driven gear 9, and the safety belt 13 is pulled by the connecting rod 11; the lower end of the connecting rod 11 is rotatably connected to the inner bottom surface of the box body 1 through a hinge seat 10, and the hinge seat 10 facilitates the rotation of the connecting rod 11; and a limiting ring 12 is arranged in the middle of the connecting rod 11, and the limiting ring 12 prevents the deflection of the connecting rod 11; the limiting ring 12 moves up and down on the connecting rod 11, and the rear end of the limiting ring 12 is rotatably connected to the upper side of the driven gear 9. A safety belt 13 is fixed to the rear side of the upper end of the connecting rod 11, and the middle part of the safety belt 13 abuts on the friction strip 3.

[0020] Working principle: when the utility model is used, first place the middle part of the safety belt 13 on the friction block 2, and then fix the two sides of the safety belt 13 on the connecting rods 11 on both sides; start the servo motor 7, drive the driving gear 8 through the servo motor 7, and then rotate the driven gear 9 through the driving gear 8, and then rotate the limit ring 12 connected to the driven gear 9 and the hinge seat 10 at the lower end of the connecting rod 11 to make the upper end of the connecting rod 11 move left and right, so that the safety belt 13 rubs back and forth left and right; the height of the friction strip 3 in the slide groove can be adjusted according to different friction degrees. When the hand wheel 5 is rotated clockwise, the screw rod 4 cooperates with the threaded hole of the friction strip 3, and moves downward in the guide groove through the guide rod 6 on the bottom surface of the friction strip 3, so that the height of the friction strip 3 is lower than the slide groove, that is, the two corners of the safety belt 13 are rubbed; similarly, the hand wheel 5 is rotated counterclockwise to make the height of the friction strip 3 higher than the slide groove, that is, one corner of the safety belt 13 is rubbed.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety belt wear test device, comprising a box (1), characterized in that: A friction block (2) is fixedly connected to the middle of the top surface of the box body (1), a slide groove is provided on the top surface of the friction block (2), a friction strip (3) is vertically movable in the slide groove, and a transmission assembly is provided on the inner side of the box body (1).

2. A seat belt wear test device according to claim 1, characterized in that: The transmission assembly comprises a servo motor (7) fixedly connected to the rear end of the housing (1); a driving gear (8) is installed at the front end of the driving shaft of the servo motor (7); driven gears (9) are provided on both sides of the driving gear (8); both driven gears (9) are meshed with the driving gear (8); and a connecting block is provided at the rear end of the driven gear (9); the connecting block is rotatably connected to the driven gear (9); and the bottom surface of the connecting block is fixedly connected to the bottom surface of the housing (1).

3. A seat belt wear test device according to claim 1, characterized in that: The bottom surface of the slide groove is longitudinally provided with a plurality of equidistant guide grooves, the top surface of the rear end of the friction strip (3) is provided with a threaded hole matched with the screw rod (4), the top surface of the screw rod (4) is fixedly connected with a hand wheel (5), and the lower end of the screw rod (4) is rotatably connected to the bottom surface of the slide groove, and the bottom surface of the friction strip (3) is longitudinally fixed with a plurality of guide rods (6), and the guide rods (6) are arranged in the guide groove.

4. A seat belt wear test device according to claim 2, characterized in that: A connecting rod (11) is vertically arranged at the front end of the driven gear (9); the lower end of the connecting rod (11) is rotatably connected to the inner bottom surface of the box body (1) via a hinge seat (10); a limiting ring (12) is arranged in the middle of the connecting rod (11); the limiting ring (12) moves up and down on the connecting rod (11); and the rear end of the limiting ring (12) is rotatably connected to the upper side of the driven gear (9).

5. A safety belt wear test device according to claim 4, characterized in that: A safety belt (13) is fixedly connected to the rear side of the upper end of the connecting rod (11), and the middle part of the safety belt (13) abuts against the friction strip (3).

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