Zip fastener endurance testing apparatus

Abstract

The utility model relates to zip fastener test technical field discloses a zip fastener use endurance test device, including base, the top fixed mounting of base is inverted U type frame, and the top of base is provided with the support ring, the inside of inverted U type frame is provided with the support post, the below of support post is provided with the tension meter, the top equidistance fixed mounting of support ring is provided with a plurality of support shafts, the below of tension meter and the top of support shaft all are provided with the clamping assembly, the top of base is opened the arc limit slot, the bottom fixed mounting of support ring is provided with the limit ring that matches with arc limit slot. The utility model discloses through limit ring and arc limit slot can conveniently support ring's rotation, to the below of the clamping assembly of the below of the clamping assembly of each clamping assembly on support ring rotation to tension meter, thereby carries out the partial loading installation of the rest zip fastener while to one zip fastener carries out the flat pull detection, increases the efficiency of test work.

Description

Technical Field

[0001] This utility model relates to the field of zipper testing technology, specifically a zipper durability testing device. Background Technology

[0002] A zipper, also known as a chain lock, is a fastener that uses a sliding element (slider) to engage or disengage two rows of chain teeth. It is used to connect the edges of openings (such as clothing and bags), greatly simplifying the opening and closing process. It is widely used in clothing, bags, tents and many other fields. A zipper consists of chain teeth, a slider, a fabric strip, and a top or bottom stop. A flat pull test on a zipper can indicate the durability of a portion of the zipper.

[0003] The published patent document CN222837932U discloses a zipper durability testing device. This patent uses an environmental simulation component. During testing, the fixed zipper is moved up and down repeatedly by an electric lifting frame to open and close the zipper, thus testing its durability. During testing, an external controller operates a ventilation fan in the top ventilation duct of the environmental simulation chamber, causing airflow inside the chamber. Simultaneously, the power supply to the heating element or semiconductor cooling chip is turned on, allowing the temperature inside the environmental simulation chamber to be increased or decreased as needed. This enables testing of the zipper under different ambient temperatures, effectively determining its durability at different temperatures and improving the accuracy of zipper testing. However, the aforementioned patent requires fixing, testing, and unloading one zipper before fixing the next, resulting in low testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a zipper durability testing device, which solves the problems mentioned in the background art.

[0005] This application provides a zipper endurance testing device, including a base, an inverted U-shaped frame fixedly installed on the top of the base, and a support ring above the base. A support rod is installed inside the inverted U-shaped frame, and a tension gauge is installed below the support rod. A plurality of support shafts are fixedly installed at equal intervals on the top of the support ring. Clamping components are provided below the tension gauge and on the top of the support shafts. An arc-shaped limiting groove is formed on the top of the base, and a limiting ring matching the arc-shaped limiting groove is fixedly installed on the bottom of the support ring. The vertical cross-section of the arc-shaped limiting groove and the limiting ring are both "convex" shaped, and part of the limiting ring is inside the arc-shaped limiting groove.

[0006] Optionally, the inner walls of the two sides of the inverted U-shaped frame are symmetrically provided with sliding grooves, and servo motors are fixedly installed on both sides of the top of the inverted U-shaped frame. A lead screw is rotatably installed inside the sliding groove. The two sides of the support rod are respectively located inside the two sliding grooves, and the support rod is slidably connected to the sliding groove. The upper end of the lead screw is fixedly installed to the output end of the servo motor, and the lead screw passes through the support rod. The support rod is threadedly connected to the lead screw.

[0007] Optionally, each clamping assembly includes a U-shaped component and two clamping blocks. Both sides of the U-shaped component are threaded and connected to a threaded shaft. The two clamping blocks are located on both sides inside the U-shaped component and are slidably connected to the U-shaped component. One end of the threaded shaft is rotatably mounted to the clamping block, and the other end of the threaded shaft is fixedly mounted with a knob.

[0008] Optionally, several protrusions may be integrally cast on adjacent sides of the two clamping blocks.

[0009] Optionally, the support rod has a threaded hole, the upper end of the tension gauge is rotatably mounted with a threaded post that matches the threaded hole, and the lower end of the tension gauge is fixedly mounted with a hook. The threaded post passes through the threaded hole, and the thread helix angle of the threaded post is less than the equivalent friction angle. A hanging ring is fixedly mounted on the top of one of the U-shaped parts, and the hook passes through the hanging ring.

[0010] Optionally, support legs are fixedly installed at the four corners of the bottom of the base, and anti-slip pads are provided at the lower ends of the support legs.

[0011] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows: The technical solution of this application allows for convenient rotation of the support ring via a limiting ring and an arc-shaped limiting groove. This enables the various clamping components on the support ring to be rotated to the position below the clamping components below the tension gauge. As a result, while performing a flat pull test on one zipper, the remaining zippers can be partially loaded and installed, increasing the efficiency of the testing work.

[0012] The technical solution of this application facilitates the connection of the tension gauge to a clamping component through hooks and hanging rings. The tension gauge can be disassembled by rotating the threaded column to unscrew it from below the threaded hole, which facilitates the replacement, inspection and replacement of the tension gauge and makes the replacement of parts more convenient. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the base of this utility model; Figure 3This is a schematic diagram of the support ring structure of this utility model; Figure 4 This is a schematic diagram of a set of clamping components according to the present invention; Figure 5 This utility model Figure 1 Enlarged view of point A in the middle.

[0014] In the diagram: 1. Base; 2. Inverted U-shaped frame; 3. Support ring; 4. Support rod; 5. Tensile gauge; 6. Support shaft; 7. Clamping assembly; 71. U-shaped part; 72. Clamping block; 73. Threaded shaft; 74. Knob; 75. Protrusion; 8. Slide groove; 9. Servo motor; 10. Lead screw; 11. Hook; 12. Hanging ring; 13. Support leg; 14. Arc-shaped limiting groove; 15. Limiting ring; 16. Threaded hole; 17. Threaded post. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0016] Please see Figure 1-3 This utility model provides a zipper endurance testing device, including a base 1, an inverted U-shaped frame 2 fixedly installed on the top of the base 1, and a support ring 3 provided above the base 1. A support rod 4 is provided inside the inverted U-shaped frame 2, and a tension gauge 5 is provided below the support rod 4. Several support shafts 6 are fixedly installed at equal intervals on the top of the support ring 3. Clamping components 7 are provided below the tension gauge 5 and on the top of the support shafts 6. An arc-shaped limiting groove 14 is opened on the top of the base 1, and a limiting ring 15 matching the arc-shaped limiting groove 14 is fixedly installed at the bottom of the support ring 3. The vertical cross-section of the arc-shaped limiting groove 14 and the limiting ring 15 are both "convex" shaped in front view, and part of the limiting ring 15 is inside the arc-shaped limiting groove 14. In this technical solution, the limiting ring 15 and the arc-shaped limiting groove 14 can facilitate the rotation of the support ring 3, so that each clamping component 7 on the support ring 3 can be rotated to the lower part of the clamping component 7 below the tension gauge 5, thereby performing partial loading and installation of other zippers while performing flat pull test on one zipper, increasing the efficiency of the testing work.

[0017] In some technical solutions, such as Figure 1As shown, the inner walls of the two sides of the inverted U-shaped frame 2 are symmetrically provided with sliding grooves 8, and servo motors 9 are fixedly installed on both sides of the top of the inverted U-shaped frame 2. A lead screw 10 is rotatably installed inside the sliding groove 8. The two sides of the support rod 4 are respectively located inside the two sliding grooves 8, and the support rod 4 is slidably connected to the sliding groove 8. The upper end of the lead screw 10 is fixedly installed to the output end of the servo motor 9, and the lead screw 10 passes through the support rod 4. The support rod 4 is threadedly connected to the lead screw 10.

[0018] In use, the servo motor 9 drives the lead screw 10 to rotate, and the lead screw 10 drives the support rod 4 to move vertically, thereby enabling vertical adjustment of the tension gauge 5 and the clamping assembly 7 below it, and realizing rapid flat-pull detection of the zipper.

[0019] In some technical solutions, such as Figure 1 and Figure 4 As shown, each clamping assembly 7 includes a U-shaped part 71 and two clamping blocks 72. Both sides of the U-shaped part 71 are threaded and connected to a threaded shaft 73. The two clamping blocks 72 are located on both sides inside the U-shaped part 71, and the clamping blocks 72 are slidably connected to the U-shaped part 71. One end of the threaded shaft 73 is rotatably mounted to the clamping block 72, and the other end of the threaded shaft 73 is fixedly mounted with a knob 74.

[0020] In use, place the zipper tape between the two clamping blocks 72, and rotate the threaded shaft 73 by the knob 74 to move the clamping blocks 72 horizontally, thereby clamping and fixing the zipper tape.

[0021] In some technical solutions, such as Figure 4 As shown, several protrusions 75 are integrally cast on adjacent sides of the two clamping blocks 72.

[0022] In use, several protrusions 75, which are cast in one piece, ensure the stability of the two clamping blocks 72 in holding the zipper tape.

[0023] In some technical solutions, such as Figure 1 and Figure 5 As shown, a threaded hole 16 is provided on the support rod 4, a threaded post 17 matching the threaded hole 16 is rotatably installed on the upper end of the tension gauge 5, and a hook 11 is fixedly installed on the lower end of the tension gauge 5. The threaded post 17 passes through the threaded hole 16, and the thread helix angle of the threaded post 17 is less than the equivalent friction angle. A hanging ring 12 is fixedly installed on the top of a U-shaped part 71, and the hook 11 passes through the hanging ring 12.

[0024] In use, the tension gauge 5 can be easily connected to a clamping assembly 7 via the hook 11 and the hanging ring 12. The tension gauge 5 can be disassembled by rotating the threaded post 17 from below the threaded hole 16, making it easy to replace the tension gauge 5.

[0025] In some technical solutions, such as Figure 1 As shown, support legs 13 are fixedly installed at the four corners of the bottom of the base 1, and anti-slip pads are provided at the lower end of the support legs 13.

[0026] When in use, the anti-slip pads at the lower end of the support legs 13 increase the stability of the device.

[0027] Working principle: During use, the zipper tape is first placed on the clamping component 7 on the support ring 3, and the tape is placed between the two clamping blocks 72. The threaded shaft 73 is rotated using the knob 74, which drives the clamping blocks 72 to move horizontally, thereby clamping and fixing the zipper tape. The limiting ring 15 and the arc-shaped limiting groove 14 facilitate the rotation of the support ring 3, so that each clamping component 7 on the support ring 3 can be rotated to the lower part of the clamping component 7 below the tension gauge 5. Thus, while performing a flat pull test on one zipper, the remaining zippers can be partially loaded and installed. The other side of the zipper tape is placed between the two clamping blocks 72 of the clamping component 7 below the tension gauge 5 to fix the other side of the zipper tape. The servo motor 9 drives the lead screw 10 to rotate, and the lead screw 10 drives the support rod 4 to move vertically, thereby vertically adjusting the tension gauge 5 and the clamping component 7 below it, realizing the rapid flat pull test of the zipper.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A zipper endurance testing device, comprising a base (1), characterized in that: The base (1) is fixedly mounted with an inverted U-shaped frame (2), and a support ring (3) is provided above the base (1). A support rod (4) is provided inside the inverted U-shaped frame (2). A tension gauge (5) is provided below the support rod (4). Several support shafts (6) are fixedly mounted at equal intervals on the top of the support ring (3). Clamping components (7) are provided below the tension gauge (5) and on the top of the support shafts (6). An arc-shaped limiting groove (14) is opened on the top of the base (1). A limiting ring (15) matching the arc-shaped limiting groove (14) is fixedly mounted on the bottom of the support ring (3). The vertical cross-section of the arc-shaped limiting groove (14) and the limiting ring (15) are both "convex" shaped, and part of the limiting ring (15) is inside the arc-shaped limiting groove (14).

2. The zipper endurance testing device according to claim 1, characterized in that, The inverted U-shaped frame (2) has symmetrically provided sliding grooves (8) on both sides of its inner wall, and servo motors (9) are fixedly installed on both sides of the top of the inverted U-shaped frame (2). A lead screw (10) is rotatably installed inside the sliding groove (8). The two sides of the support rod (4) are respectively located inside the two sliding grooves (8), and the support rod (4) is slidably connected to the sliding groove (8). The upper end of the lead screw (10) is fixedly installed to the output end of the servo motor (9), and the lead screw (10) passes through the support rod (4). The support rod (4) is threadedly connected to the lead screw (10).

3. The zipper endurance testing device according to claim 1, characterized in that, Each clamping assembly (7) includes a U-shaped part (71) and two clamping blocks (72). Both sides of the U-shaped part (71) are threaded and connected to a threaded shaft (73). The two clamping blocks (72) are located on both sides inside the U-shaped part (71) and are slidably connected to the U-shaped part (71). One end of the threaded shaft (73) is rotatably mounted to the clamping block (72), and the other end of the threaded shaft (73) is fixedly mounted with a knob (74).

4. The zipper endurance testing device according to claim 3, characterized in that, The two clamping blocks (72) are integrally cast with several protrusions (75) on adjacent sides.

5. A zipper endurance testing device according to claim 3, characterized in that, The support rod (4) has a threaded hole (16). The upper end of the tension gauge (5) is rotatably mounted with a threaded post (17) that matches the threaded hole (16). The lower end of the tension gauge (5) is fixedly mounted with a hook (11). The threaded post (17) passes through the threaded hole (16), and the thread helix angle of the threaded post (17) is less than the equivalent friction angle. A hanging ring (12) is fixedly mounted on the top of one of the U-shaped parts (71), and the hook (11) passes through the hanging ring (12).

6. The zipper endurance testing device according to claim 1, characterized in that, The base (1) has four fixed feet (13) at the bottom corners, and the lower end of the feet (13) is provided with anti-slip pads.

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