Device for testing tear resistance of tear-resistant PVC (polyvinyl chloride) tarpaulin

Abstract

The utility model provides a tear resistance testing device for tear-resistant PVC tarpaulin, which comprises a frame body in which a driving mechanism is mounted, a plurality of tension testing meters connected with the driving mechanism are arranged in the frame body, and the testing ends of the tension testing meters are connected with connecting pieces. The upper clamping block is connected to one end of the connecting piece, and the lower clamping block corresponds to the upper clamping block up and down and is fixed to the bottom wall of the frame body. According to the anti-tear PVC tarpaulin detection device, through arrangement of the blocking part, when the upper clamping block and the lower clamping block jointly carry out clamping detection on the anti-tear PVC tarpaulin to be detected, the blocking part can block the space to be detected, so that an observer can clearly observe the tear condition of the anti-tear PVC tarpaulin in a close range, and through cooperation of a transparent cover plate, the anti-tear PVC tarpaulin can be conveniently detected. And the tear-resistant PVC tarpaulin and the tension tester can be blocked after being torn, so that the effective protection of detection personnel is realized.

Description

Technical Field

[0001] The utility model relates to the field of tear-resistant PVC tarpaulins, and more specifically, to a device for testing the tear resistance of tear-resistant PVC tarpaulins. Background Art

[0002] A tarpaulin (or waterproof cloth) is a high-strength waterproof material with good toughness and softness, and is often used as canvas (oil painting cloth), polyester with a polyurethane coating, or made into polyethylene plastics. Tarpaulins usually have strong grommets at the corners or edges for easy threading of ropes for tying, hanging, or covering.

[0003] In the production process of tear-resistant PVC tarpaulins, in order to improve the tear resistance of tear-resistant PVC tarpaulins, a tear resistance testing device is usually used to detect the tear resistance of tear-resistant PVC tarpaulins. Through multiple experiments, the tear-resistant PVC tarpaulins are continuously improved to further enhance their tear resistance. However, most of the current tear resistance testing devices pull the fabric of the tear-resistant PVC tarpaulin through a tensile testing device, and when the tear-resistant PVC tarpaulin tears, the reading on the tensile testing device can be read.

[0004] However, the above traditional testing device has the following problems in actual use. When the tear-resistant PVC tarpaulin tears, the fabric may be torn into two parts instantly, and at this time, the tear-resistant PVC tarpaulin and the tensile testing device may swing instantaneously, which is likely to cause accidental injury to the inspectors observing the tearing situation nearby and is not conducive to observing the tearing situation.

[0005] Therefore, we make improvements and propose a device for testing the tear resistance of tear-resistant PVC tarpaulins. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a device for testing the tear resistance of tear-resistant PVC tarpaulins, which solves the problem that the existing device for testing the tear resistance of tear-resistant PVC tarpaulins is likely to cause accidental injury to the inspectors observing the tearing situation nearby during use and is not conducive to observing the tearing situation.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] A device for testing the tear resistance of tear-resistant PVC tarpaulins includes a frame for installing a driving mechanism inside. A plurality of tensile testers connected to the driving mechanism are arranged inside the frame, and a connecting member is connected to the testing end of the tensile tester. The device further includes an upper clamping block connected to one end of the connecting member and a lower clamping block arranged corresponding to the upper clamping block up and down and fixed to the bottom wall of the frame.

[0009] The plugging component is sleeved on the surfaces of the upper clamping block and the lower clamping block corresponding up and down together, and is connected to the linkage component outside the frame body, so as to form synchronous opening and closing of the test space formed between multiple upper clamping blocks and lower clamping blocks;

[0010] Among them, the plugging component includes two side plates arranged in parallel with each other and a transparent cover plate hinged to one side of one of the side plates. The two side plates are respectively located on both sides of the upper clamping block and the lower clamping block and are connected to the bottom wall of the frame body.

[0011] As a preferred technical solution of the present application, a transmission section is formed by extending the transparent cover plate in the direction towards the linkage component;

[0012] The linkage component includes a support bar fixed on the surface of the frame body and a rack slidably sleeved on the surface of the support bar. Gears fixed to the transmission section are meshed at positions corresponding to the transmission section on the outside of the rack.

[0013] As a preferred technical solution of the present application, the bottom ends of multiple said transmission sections are all movably connected to a stabilizing plate, and the stabilizing plate is arranged below the rack and fixed to the frame body.

[0014] As a preferred technical solution of the present application, the upper clamping block includes a clamping seat fixed below the connecting piece and an adjusting screw threadedly penetrating through one side of the clamping seat. One end of the adjusting screw extends into the inner side of the clamping seat and is movably connected to a clamping block;

[0015] The upper clamping block has the same structure as the lower clamping block.

[0016] As a preferred technical solution of the present application, the driving mechanism includes a sliding plate commonly connected to the tops of multiple said tensile testers and a driving motor fixed to the top of the frame body, and an adjusting screw rod in transmission cooperation with the output end of the driving motor is threadedly connected to the sliding plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] In the solution of the present application:

[0019] 1. Through the arranged plugging component, when the upper clamping block and the lower clamping block jointly clamp and detect the tear-resistant PVC tarpaulin to be detected, the plugging component can form a plug for the space to be detected, so that the observer can clearly observe the tearing situation of the tear-resistant PVC tarpaulin at a close distance, and through the cooperation of the transparent cover plate, the tear-resistant PVC tarpaulin and the tensile tester after tearing can be blocked, so as to effectively protect the testers;

[0020] 2. The synchronous detection of multiple tear-resistant PVC tarpaulins can be achieved through multiple upper clamping blocks and lower clamping blocks provided. Meanwhile, through the cooperation of the linkage components, the transparent cover plate on the plugging component can be opened and closed synchronously, thus further facilitating the insertion and removal of multiple tear-resistant PVC tarpaulins before and after detection. Brief Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the tear resistance performance testing device for the tear-resistant PVC tarpaulin provided by the present application;

[0022] Figure 2 It is a schematic structural diagram of the second form of the tear resistance performance testing device for the tear-resistant PVC tarpaulin provided by the present application;

[0023] Figure 3 It is a partial schematic structural diagram of the tear resistance performance testing device for the tear-resistant PVC tarpaulin provided by the present application;

[0024] Figure 4 It is the Figure 3 amplified structural schematic diagram at A of the tear resistance performance testing device for the tear-resistant PVC tarpaulin provided by the present application;

[0025] Figure 5 It is the Figure 1 amplified structural schematic diagram at B of the tear resistance performance testing device for the tear-resistant PVC tarpaulin provided by the present application.

[0026] Labels in the figure:

[0027] 1. Driving mechanism; 2. Frame body; 3. Tensile tester; 4. Test end; 5. Connecting piece; 6. Upper clamping block; 7. Lower clamping block; 8. Plugging component; 9. Linkage component; 10. Stabilizing plate; 11. Slide plate; 12. Driving motor; 13. Adjusting screw rod; 14. Guide ball;

[0028] 81. Side plate; 82. Transparent cover plate; 83. Transmission section;

[0029] 91. Support bar; 92. Rack; 93. Gear;

[0030] 61. Clamping seat; 62. Adjusting screw; 63. Clamping block. Detailed Embodiment

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model.

[0032] Accordingly, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model claimed, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0034] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the inventive product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are 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, and thus should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0036] As Figures 1 - 5 shown, this embodiment provides a tear resistance test device for tear-resistant PVC tarpaulin, which includes a frame body 2 for installing a driving mechanism 1 inside. A plurality of tensile testers 3 connected to the driving mechanism 1 are provided inside the frame body 2, and a connecting member 5 is connected to the test end 4 of the tensile tester 3. It further includes an upper clamping block 6 connected to one end of the connecting member 5 and a lower clamping block 7 arranged corresponding to the upper clamping block 6 up and down and fixed to the bottom wall of the frame body 2. The upper clamping block 6 includes a clamping seat 61 fixed below the connecting member 5 and an adjusting screw rod 62 threadedly penetrating through one side of the clamping seat 61. One end of the adjusting screw rod 62 extends into the inner side of the clamping seat 61 and is movably connected to a clamping block 63. The upper clamping block 6 and the lower clamping block 7 have the same structure. The driving mechanism 1 includes a sliding plate 11 commonly connected to the tops of a plurality of tensile testers 3 and a driving motor 12 fixed to the top of the frame body 2, and an adjusting screw rod 13 in threaded connection with the sliding plate 11 and in transmission cooperation with the output end of the driving motor 12.

[0037] Place the tear-resistant PVC tarpaulin to be detected inside the corresponding upper clamping block 6 and lower clamping block 7 respectively, and rotate the adjusting screw 62 to drive the clamping block 63 at its end to move, so as to form a common clamping and fixing of both ends of the tear-resistant PVC tarpaulin. Then start the driving motor 12 to drive the adjusting screw rod 13 to rotate, so that the sliding plate 11 threadedly connected thereto can slide along the height direction of the frame body 2, and the sliding plate 11 slides towards the top of the frame body 2. During the sliding process of the sliding plate 11, the upper clamping block 6 thereon drives the tear-resistant PVC tarpaulin to be pulled, so as to detect the tear resistance performance. And through the reading on the tensile tester 3, the detection record of the tear resistance performance can be formed.

[0038] The sealing component 8 is sleeved on the surfaces of the upper clamping block 6 and the lower clamping block 7 corresponding up and down, and is connected to the linkage component 9 outside the frame body 2, so as to form the synchronous opening and closing of the test space formed between multiple upper clamping blocks 6 and lower clamping blocks 7. Among them, the sealing component 8 includes two side plates 81 arranged in parallel with each other and a transparent cover plate 82 hinged to one side of one side plate 81. The two side plates 81 are respectively located on both sides of the upper clamping block 6 and the lower clamping block 7 and are connected to the bottom wall of the frame body 2;

[0039] The transparent cover plate 82 extends towards the direction of the linkage component 9 to form a transmission section 83;

[0040] The linkage component 9 includes a support bar 91 fixed on the surface of the frame body 2 and a rack 92 slidably sleeved on the surface of the support bar 91. Gears 93 fixed to the transmission section 83 are engaged at the corresponding positions outside the rack 92. The bottom ends of multiple transmission sections 83 are both movably connected to the stabilizing plate 10, and the stabilizing plate 10 is arranged below the rack 92 and fixed to the frame body 2;

[0041] During the detection process of the tear resistance of the tear-resistant PVC tarpaulin, the detection space can be blocked jointly by the side plates 81 on both sides and the front transparent cover plate 82, so that the detection personnel can detect the tearing situation of the tear-resistant PVC tarpaulin at a close distance, and at the same time, protection can be formed to avoid the situation that the detection personnel are accidentally injured due to the swing after the tear-resistant PVC tarpaulin is torn;

[0042] And rotate one of the transparent cover plates 82 to open it, and it drives the gear 93 to rotate through the transmission end 83 thereon. The gear 93 during the rotation process drives the rack 92 to move synchronously, so as to form the synchronous drive of multiple gears 93, so that multiple transparent cover plates 82 can be opened synchronously, thus further facilitating the placement and removal of multiple tear-resistant PVC tarpaulins before and after detection;

[0043] Guide balls 14 are movably embedded on both sides of the upper clamping block 6 for sliding contact with the inner side of the side plate 81. Through the arrangement of the guide balls 14, the upper clamping block 6 can slide better on the inner side of the side plate 81 during the detection process, which is beneficial to maintaining more accurate detection of the tear-resistant PVC tarpaulin.

[0044] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although the present specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A tear resistance performance testing device for tear-resistant PVC tarpaulin, comprising a frame (2) in which a driving mechanism (1) is installed, wherein a plurality of tensile testers (3) connected to the driving mechanism (1) are arranged in the frame (2), and a connecting piece (5) is connected to a testing end (4) of the tensile tester (3), characterized in that: It also includes an upper clamping block (6) connected to one end of the connecting member (5) and a lower clamping block (7) arranged above and below the upper clamping block (6) and fixed to the bottom wall of the frame (2); The blocking component (8) is sleeved on the surfaces of the upper clamping block (6) and the lower clamping block (7) corresponding to each other, and is connected to the linkage component (9) on the outside of the frame (2) to form a synchronous opening and closing of the test space formed between the plurality of upper clamping blocks (6) and the lower clamping blocks (7); The blocking component (8) comprises two side panels (81) arranged parallel to each other and a transparent cover plate (82) hinged to one side of one of the side panels (81); the two side panels (81) are respectively located on both sides of the upper clamping block (6) and the lower clamping block (7) and are connected to the bottom wall of the frame (2).

2. The tear resistance performance testing device of tear-resistant PVC tarpaulin according to claim 1, characterized in that: The transparent cover plate (82) extends in the direction of the linkage component (9) to form a transmission section (83); The linkage component (9) comprises a support bar (91) fixed to the surface of the frame (2) and a rack (92) slidably sleeved on the surface of the support bar (91), and a gear (93) fixed to the transmission section (83) is meshed with the outer side of the rack (92) at a position corresponding to the transmission section (83).

3. The tear resistance performance testing device of tear-resistant PVC tarpaulin according to claim 2, characterized in that: The bottom ends of the plurality of transmission sections (83) are all movably connected to the stabilizing plate (10), and the stabilizing plate (10) is disposed below the rack (92) and fixed to the frame (2).

4. The tear resistance performance testing device of tear-resistant PVC tarpaulin according to claim 1, characterized in that: The upper clamping block (6) comprises a clamping seat (61) fixed below the connecting member (5) and an adjusting screw (62) threadedly penetrated through one side of the clamping seat (61).

5. The tear resistance performance testing device of tear-resistant PVC tarpaulin according to claim 4, characterized in that: One end of the adjusting screw (62) extends inside the clamping seat (61) and is movably connected to a clamping block (63); The upper clamping block (6) and the lower clamping block (7) have the same structure.

6. The tear resistance performance testing device of tear-resistant PVC tarpaulin according to claim 1, characterized in that: Guide balls (14) are movably embedded on both sides of the upper clamping block (6) for forming sliding contact with the inner side of the side plate (81).

7. The tear resistance performance testing device of tear-resistant PVC tarpaulin according to claim 1, characterized in that: The driving mechanism (1) comprises a slide plate (11) commonly connected to the top ends of the plurality of tensile testers (3) and a driving motor (12) fixed to the top of the frame (2), and an adjusting screw rod (13) is threadedly connected to the slide plate (11) and is in transmission cooperation with the output end of the driving motor (12).

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