Improved device for detecting strength of ejection hook of hook-and-loop fastener

Abstract

The utility model relates to the technical field of strength detection, in particular to an improved strength detection device for an ejection hook of a magic tape, which comprises a bottom plate and a first vertical plate, and a detection device is mounted on the inner side of the first vertical plate. The hook-and-loop fastener injection hook needing strength detection can be placed in the grooves of the concave plates at the two ends, then the output shaft of the motor drives the second belt pulley to rotate, the second belt pulley drives the first belt pulley to rotate through the belt, and the first belt pulley drives the sleeve to rotate; in this way, the sleeve is matched with the screw and the concave plate to drive the pressing plate to move downwards, the pressing plate is matched with the concave plate to press and fix the hook-and-loop fastener ejection hook, then the electric push rod retracts, the electric push rod can drive the concave plate to move outwards through the tension sensor and the like, and the hook-and-loop fastener ejection hook is pulled until the hook-and-loop fastener ejection hook is broken. Therefore, the strength of the hook-and-loop fastener ejection hook or other detection objects can be measured more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of strength detection, in particular to a strength detection device for an improved hook-and-loop fastener. Background Art

[0002] The Velcro injection hook is made of fabric with small hooks on one side and fabric with small plush loops on the other side. Both sides have the characteristics of "sticking when touched and separating when pulled", and are widely used. In order to ensure the use effect of the Velcro injection hook, the Velcro injection hook is generally subjected to strength testing.

[0003] For example, the engineering plastic strength detection system with application publication number CN107741365A includes a fixed frame. The invention can detect the pressure resistance and impact resistance of engineering plastics at different temperatures, has a wide detection range, and has good detection effect. However, the strength detection system mainly uses the method of smashing and pressing to perform strength detection. However, due to different use sites, accurate strength data cannot be obtained by smashing and pressing only without breaking or crushing the material, and the time required for breaking or crushing is relatively long, thereby reducing the use effect of the strength detection device. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the strength detection system in the above-mentioned comparative patent mainly adopts the method of smashing and pressing to perform strength detection. However, due to different places of use, accurate strength data cannot be obtained by smashing and pressing only without breaking the material, and the time required for smashing and pressing is also relatively long, thereby reducing the use effect of the strength detection device. An improved strength detection device for Velcro injection hook is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An improved strength detection device for a Velcro hook is designed, comprising a base plate and a first vertical plate, wherein the first vertical plates are fixedly connected to both sides of the upper surface of the base plate, a cross bar is fixedly connected to the inner lower side of the first vertical plate, a plurality of second vertical plates are installed on the outer wall of the cross bar, and the inner wall of the through hole of the second vertical plate is gap-matched with the outer wall of the cross bar, and a detection device is installed on the inner side of the first vertical plate.

[0007] Preferably, the detection device includes an electric push rod, the middle outer wall of the left and right electric push rods is fixedly connected to the inner part of the first vertical plate, a tension sensor is fixedly connected to the inner side of the electric push rod, and the other end of the tension sensor is fixedly connected to a concave plate, the lower surface of the concave plate is fixedly connected to the second vertical plate, a pressure plate is installed at the groove of the concave plate, and the outer outer wall of the pressure plate is gap-matched with the inner wall of the slide groove of the concave plate, a screw is fixedly connected to the top of the left and right pressure plates, the middle outer wall of the screw is threadedly connected to a sleeve, and the outer wall of the sleeve is rotatably connected to the concave plate through a bearing.

[0008] Preferably, a first pulley is fixedly connected to the upper outer wall of the sleeve.

[0009] Preferably, the outer sides of the left and right first pulleys are rotatably connected to the second pulley via a belt.

[0010] Preferably, a motor is fixedly connected to the upper outer side of the concave plate, and the output shaft of the motor is fixedly connected to the inside of the second pulley.

[0011] The utility model proposes an improved strength detection device for Velcro injection hook, which has the beneficial effect that the Velcro injection hook that needs to be strength detected can be placed in the grooves of the concave plates at both ends, and then the motor is started to make the output shaft of the motor drive the second pulley to rotate, so that the second pulley drives the first pulley to rotate through the belt, and the first pulley drives the sleeve to rotate, so that the sleeve cooperates with the screw rod and the concave plate to drive the pressure plate to move downward, so that the pressure plate cooperates with the concave plate to press and fix the Velcro injection hook, and then the electric push rod is started to retract, so that the electric push rod can drive the concave plate to move outward through the tension sensor, etc., and pull the Velcro injection hook until the Velcro injection hook breaks, so that the strength of the Velcro injection hook or other detection objects can be measured more accurately, so that not only the test time is shortened, but also the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 for Figure 1 Plane section view in;

[0014] Figure 3 for Figure 2 A schematic diagram of the structure of the middle cross bar, the second vertical plate and the concave plate;

[0015] Figure 4 for Figure 2 Schematic diagram of the structure of the screw, sleeve and motor.

[0016] In the figure: 1, bottom plate, 2, first vertical plate, 3, detection device, 301, electric push rod, 302, tension sensor, 303, concave plate, 304, pressure plate, 305, screw, 306, sleeve, 4, cross bar, 5, second vertical plate, 6, first pulley, 7, belt, 8, second pulley, 9, motor. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Example: Refer to the attached Figure 1-4 In this embodiment, an improved strength detection device for a hook-and-loop fastener includes a bottom plate 1 and a first vertical plate 2. The first vertical plates 2 are fixedly connected to both sides of the upper surface of the bottom plate 1. A cross bar 4 is fixedly connected to the inner lower side of the first vertical plate 2. Two second vertical plates 5 are installed on the outer wall of the cross bar 4. A through hole is processed inside the second vertical plate 5, and the inner wall of the through hole of the second vertical plate 5 is gap-matched with the outer wall of the cross bar 4. A detection device 3 is installed on the inner side of the first vertical plate 2.

[0019] See attached Figure 1-4 The detection device 3 includes an electric push rod 301, a tension sensor 302, a concave plate 303, a pressure plate 304, a screw 305 and a sleeve 306. The middle outer wall of the left and right electric push rods 301 is fixedly connected to the inside of the first vertical plate 2. The inner side of the electric push rod 301 is fixedly connected to the tension sensor 302. The models of the electric push rod 301 and the tension sensor 302 can be selected according to user needs, and the other end of the tension sensor 302 is fixedly connected to the concave plate 303. The lower surface of the concave plate 303 is fixedly connected to the second vertical plate 5. The concave plate 303 can be limited by the second vertical plate 5 and the cross bar 4. The groove of the concave plate 303 is processed with a slide groove, and the groove of the concave plate 303 is installed with a pressure plate 3 04, and the outer wall of the pressure plate 304 is matched with the inner wall of the slide groove of the concave plate 303, a screw 305 is fixedly connected to the upper part of the left and right pressure plates 304, and a sleeve 306 is threadedly connected to the middle outer wall of the screw 305. The sleeve 306 can drive the pressure plate 304 to move through the screw 305, and the outer wall of the sleeve 306 is rotatably connected to the concave plate 303 through a bearing, and the upper outer wall of the sleeve 306 is fixedly connected to the first pulley 6, and the outer sides of the left and right first pulleys 6 are rotatably connected to the second pulley 8 through a belt 7, and a motor 9 is fixedly connected to the upper outer side of the concave plate 303. The model of the motor 9 can be selected according to the needs of the user, and the output shaft of the motor 9 is fixedly connected to the inside of the second pulley 8;

[0020] Start the motor 9 so that the output shaft of the motor 9 drives the second pulley 8 to rotate, and the second pulley 8 drives the first pulley 6 to rotate through the belt 7, and the first pulley 6 drives the sleeve 306 to rotate, so that the sleeve 306 cooperates with the screw 305 and the concave plate 303 to drive the pressure plate 304 to move downward, so that the pressure plate 304 cooperates with the concave plate 303 to press and fix the Velcro ejection hook, and then start the electric push rod 301 to make the electric push rod 301 retract, so that the electric push rod 301 can drive the concave plate 303 to move outward through the tension sensor 302, etc., and pull the Velcro ejection hook until the Velcro ejection hook breaks, so that the strength of the Velcro ejection hook or other detection objects can be measured more accurately.

[0021] In this embodiment, when the operator needs to use the improved strength detection device for the hook of the hook and loop fastener, the operator can first place the hook and loop fastener that needs to be tested for strength in the grooves of the concave plates 303 at both ends, then connect the external power supply of the motor 9, start the motor 9, so that the output shaft of the motor 9 drives the second pulley 8 to rotate, so that the second pulley 8 drives the first pulley 6 to rotate through the belt 7, and the first pulley 6 drives the sleeve 306 to rotate, so that the sleeve 306 cooperates with the screw 305 and the concave plate 303 to drive the pressure The plate 304 moves downward, so that the pressure plate 304 cooperates with the concave plate 303 to press and fix the Velcro hook, and then the external power supply of the electric push rod 301 is connected, the electric push rod 301 is started, and the electric push rod 301 retracts, so that the electric push rod 301 can drive the concave plate 303 to move outward through the tension sensor 302, etc., and pull the Velcro hook until the Velcro hook breaks, so that the strength of the Velcro hook or other test objects can be measured more accurately, so that not only the test time is shortened, but also the use effect is better.

[0022] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An improved strength detection device for a hook-and-loop fastener, comprising a bottom plate (1) and a first vertical plate (2), wherein both sides of the upper surface of the bottom plate (1) are fixedly connected to the first vertical plate (2), characterized in that: A cross bar (4) is fixedly connected to the lower inner side of the first vertical plate (2), a plurality of second vertical plates (5) are mounted on the outer wall of the cross bar (4), and the inner wall of the through hole of the second vertical plate (5) is gap-matched with the outer wall of the cross bar (4), and a detection device (3) is mounted on the inner side of the first vertical plate (2).

2. The improved hook and loop fastener strength detection device according to claim 1, characterized in that: The detection device (3) comprises an electric push rod (301), wherein the middle outer walls of the left and right electric push rods (301) are fixedly connected to the inside of the first vertical plate (2), a tension sensor (302) is fixedly connected to the inner side of the electric push rod (301), and the other end of the tension sensor (302) is fixedly connected to a concave plate (303), the lower surface of the concave plate (303) is fixedly connected to the second vertical plate (5), a pressing plate (304) is installed at the groove of the concave plate (303), and the outer outer wall of the pressing plate (304) is gap-matched with the inner wall of the slide groove of the concave plate (303), a screw rod (305) is fixedly connected to the upper side of the left and right pressing plates (304), a sleeve (306) is threadedly connected to the middle outer wall of the screw rod (305), and the outer wall of the sleeve (306) is rotatably connected to the concave plate (303) through a bearing.

3. The improved hook and loop fastener strength detection device according to claim 2, characterized in that: A first pulley (6) is fixedly connected to the upper outer wall of the sleeve (306).

4. The improved hook and loop fastener strength detection device according to claim 3, characterized in that: The outer sides of the left and right first pulleys (6) are rotatably connected to second pulleys (8) via belts (7).

5. The improved hook and loop fastener strength detection device according to claim 2, characterized in that: A motor (9) is fixedly connected to the upper outer side of the concave plate (303), and the output shaft of the motor (9) is fixedly connected to the inside of the second pulley (8).

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