Preparation tool of shear strength test sample strip

Abstract

The utility model relates to a shear strength test spline preparation tool, which comprises a clamp body and a repair structure, the clamp body comprises a first handle, a second handle, a first clamp part and a second clamp part, one end of the first handle is hinged to one end of the second handle, the first clamp part is integrally formed at one end of the first handle, and the second clamp part is integrally formed at the other end of the second handle. The second plier part is integrally formed at one end of the second handle, and a jaw is formed by the first plier part and the second plier part; the repairing structure comprises a rough repairing blade and a fine repairing blade, and the rough repairing blade and the fine repairing blade are rotationally connected to the end, away from the first clamp part, of the first handle. The device has the effects that only one tool is needed to cut off the overlong steel wire, and the resin structure can be trimmed.

Description

Technical Field

[0001] The present application relates to the field of sample preparation tools, and in particular to a preparation tool for a shear strength test strip. Background Art

[0002] Wire mesh reinforced polyethylene composite pipe is a composite pipe with wire mesh as the reinforcement layer. The wire mesh is bonded to the inner and outer layers of polyethylene by using adhesive resin to form a stable composite structure to ensure the application stability of the composite pipe. The national standard GB / T 32439-2015 also has clear provisions on the wire shear performance of the adhesive resin.

[0003] The bonding resin is a bonding material based on polyethylene. It can be well melt-bonded with the polyethylene of the inner and outer layers. The bonding performance between the bonding resin and the steel wire becomes the main factor affecting the quality of the steel wire composite pipe product. The bonding performance between the bonding resin and the steel wire can be characterized by the shear strength between the bonding resin and the steel wire.

[0004] For example, the Chinese utility model patent number CN219996764U applied by Shanghai Bangzhong Company discloses a sample structure for testing the shear strength of adhesive resin steel wire, in which the sample preparation structure described can easily test the shear strength of steel wire. However, this special structure also leads to the fact that after the above-mentioned sample is prepared using a special mold, when the sample is demolded from the mold, in addition to the adhesive resin block, a small amount of resin is easily adhered to the steel wire, and this part of the adhesive resin that has not been separated from the steel wire will affect the test results; in addition, for the convenience of preparation, a longer steel wire is often used. After the sample is taken out of the mold, the overlong steel wire needs to be cut off for subsequent testing.

[0005] In summary, in order to facilitate the adjustment of semi-finished product samples to obtain samples that can be tested, a tool that can conveniently adjust the samples is needed. Utility Model Content

[0006] In order to facilitate the adjustment of semi-finished samples to obtain samples that can be directly tested, the present application provides a preparation tool for shear strength test strips.

[0007] The preparation tool of a shear strength test strip provided in this application adopts the following technical solution:

[0008] A preparation tool for a shear strength test strip comprises a pliers body and a repair structure, wherein the pliers body comprises a first handle, a second handle, a first jaw portion and a second jaw portion, one end of the first handle and the second handle are hinged to each other, the first jaw portion is integrally formed at one end of the first handle, the second jaw portion is integrally formed at one end of the second handle, and the first jaw portion and the second jaw portion form a jaw opening; the repair structure comprises a coarse trimming blade and a fine trimming blade, and the coarse trimming blade and the fine trimming blade are both rotatably connected to one end of the first handle away from the first jaw portion.

[0009] Optionally, a receiving groove is formed on the first handle, and the receiving groove is located at a section of the first handle away from the first jaw portion and at a side close to the second handle.

[0010] Optionally, the blade edge of the rough pruning blade comprises a wavy tooth segment and a flat edge segment, the wavy tooth segment is located at a position of the rough pruning blade close to the blade tip, and the flat edge segment is located at a position of the rough pruning blade away from the blade tip.

[0011] Optionally, the length of the wavy tooth segment is greater than the length of the flat blade segment and the ratio of the lengths thereof is not less than 1.5 times.

[0012] Optionally, a raised portion is provided on the back of the rough pruning blade, and the raised portion is located at a position of the rough pruning blade away from the blade tip.

[0013] Optionally, the raised portion is provided with a lifting hole, the lifting hole is elliptical, and the ratio of the long diameter of the lifting hole to the short diameter of the lifting hole is 1.5-2.5 times.

[0014] Optionally, the fine trimming blade is provided with a pushing structure, the pushing structure includes a pushing rod, the pushing rod is fixedly connected to the side wall of the fine trimming blade away from the coarse trimming blade, and the first handle is provided with an arc groove, the arc groove is slidably matched with the pushing rod.

[0015] Optionally, the pushing structure further comprises a pushing block, wherein the pushing block is fixedly connected to an end of the pushing rod facing away from the fine trimming blade.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] When the semi-finished sample is taken out of the mold, it is generally necessary to trim the excessively long steel wire. At this time, the steel wire can be placed in the jaws to be cut off through the jaws; the excess resin attached to the bonding resin block can be cut off by the fine trimming blade, and the excess resin attached to the steel wire can be first removed by the coarse trimming blade, and then the resin in the gap can be removed by the fine trimming blade; therefore, only this one tool is needed to adjust the semi-finished sample to a usable finished sample;

[0018] By setting the rough trimming blade to have two blade edges, the wavy tooth section can act like a saw, making it easy to cut off resins with higher hardness, while the flat blade section can be used for regular cutting. The two blade edges can be used together to adapt to the adjustment of different resin samples;

[0019] By controlling the length of the wave tooth segment and the flat edge segment and ensuring that the wave tooth segment has a sufficient length, it is ensured that in actual use, the sawtooth structure has a sufficient length for cutting;

[0020] By arranging a convex portion with a lifting hole on the rough trimming blade and arranging a pushing structure on the fine trimming blade, the rough trimming blade can be conveniently rotated out of the storage groove when needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the preparation tool according to the embodiment of the present application.

[0022] Figure 2 It is a schematic diagram of the partial structure of the preparation tool according to the embodiment of the present application.

[0023] Figure 3 It is a schematic diagram of the structure of the fine trimming blade according to an embodiment of the present application.

[0024] Explanation of the reference numerals: 1. pliers body; 11. first handle; 12. second handle; 13. first pliers body; 14. second pliers body; 2. repair structure; 21. coarse trimming blade; 22. fine trimming blade; 23. wavy tooth segment; 24. flat blade segment; 25. raised portion; 26. lifting hole; 3. pushing structure; 31. pushing rod; 32. pushing block; 33. arc groove. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.

[0026] The present application embodiment discloses a preparation tool for a shear strength test strip. Figure 1-Figure 3 The preparation tool for the shear strength test specimen includes a clamp body and a repair structure, wherein the clamp body structure is used to trim the overlong steel wire structure, and the repair structure is used to trim the excess resin.

[0027] The pliers body comprises a first handle, a second handle, a first jaw part and a second jaw part, one end of the first handle and the second handle are hinged to each other, the first jaw part is integrally formed at one end of the hinge point of the first handle, the second jaw part is integrally formed at one end of the hinge point of the second handle, and the first jaw part and the second jaw part form a jaw opening. When in use, only the excess steel wire needs to be put into the jaw opening, and force is applied through the first handle and the second handle to cut off the excess steel wire through the first jaw part and the second jaw part.

[0028] The repair structure includes a rough trimming blade and a fine trimming blade, both of which are rotatably connected to an end of the first handle away from the first jaw portion, and the rough trimming blade and the fine trimming blade are arranged in parallel. A storage groove is provided on the first handle, and the storage groove is located at a section of the first handle away from the first jaw portion and on a side close to the second handle. When the rough trimming blade and the fine trimming blade are used, they can be rotated to be stored in the storage groove.

[0029] The blade edge of the rough pruning blade includes a wavy tooth section and a flat edge section. The wavy tooth section is located near the tip of the rough pruning blade, and the flat edge section is located away from the tip of the rough pruning blade. The length of the wavy tooth section is greater than the length of the flat edge section, and the ratio of the two lengths is not less than 1.5 times. Preferably, the ratio of the two lengths is not less than 2 times and not more than 3 times. A raised portion is provided on the back of the rough pruning blade, and the raised portion is located away from the tip of the rough pruning blade. A lifting hole is provided on the raised portion, and the lifting hole is elliptical, and the ratio of the long diameter of the lifting hole to the short diameter of the lifting hole is 1.5-2.5 times. The provision of the raised portion and the elliptical lifting hole makes it convenient for the user to take the rough pruning blade out of the storage slot.

[0030] The fine trimming blade is provided with a pushing structure, which includes a pushing rod and a pushing block. The pushing rod is fixedly connected to the side wall of the fine trimming blade away from the coarse trimming blade, and the pushing block is fixedly connected to the end of the pushing rod away from the fine trimming blade. The first handle is provided with an arc groove, and the arc groove and the pushing rod are slidably matched. When the fine trimming blade is needed, it is only necessary to push the pushing block.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A preparation tool for shear strength test strips, characterized in that: The invention comprises a pliers body and a repair structure, wherein the pliers body comprises a first handle, a second handle, a first jaw portion and a second jaw portion, one end of the first handle and the second handle are hinged to each other, the first jaw portion is integrally formed at one end of the first handle, the second jaw portion is integrally formed at one end of the second handle, and the first jaw portion and the second jaw portion form a jaw opening; the repair structure comprises a coarse trimming blade and a fine trimming blade, and the coarse trimming blade and the fine trimming blade are both rotatably connected to one end of the first handle away from the first jaw portion.

2. A preparation tool for a shear strength test strip according to claim 1, characterized in that: The first handle is provided with a receiving groove, and the receiving groove is located at a section of the first handle away from the first jaw portion and at a side close to the second handle.

3. A preparation tool for a shear strength test strip according to claim 1, characterized in that: The blade edge of the rough trimming blade includes a wavy tooth section and a flat edge section. The wavy tooth section is located near the blade tip of the rough trimming blade, and the flat edge section is located away from the blade tip of the rough trimming blade.

4. A preparation tool for a shear strength test strip according to claim 3, characterized in that: The length of the wavy tooth segment is greater than the length of the flat edge segment and the ratio of the lengths thereof is not less than 1.5 times.

5. A tool for preparing a shear strength test strip according to claim 1, characterized in that: A convex portion is provided on the blade back of the rough trimming blade, and the convex portion is located at a position of the rough trimming blade away from the blade tip.

6. A tool for preparing a shear strength test strip according to claim 5, characterized in that: The raised portion is provided with a lifting hole, the lifting hole is elliptical, and the ratio of the long diameter of the lifting hole to the short diameter of the lifting hole is 1.5-2.5 times.

7. A preparation tool for a shear strength test strip according to claim 1, characterized in that: The fine trimming blade is provided with a pushing structure, which includes a pushing rod, which is fixedly connected to the side wall of the fine trimming blade away from the rough trimming blade, and the first handle is provided with an arc groove, which is slidably matched with the pushing rod.

8. A tool for preparing a shear strength test strip according to claim 7, characterized in that: The pushing structure further comprises a pushing block, and the pushing block is fixedly connected to an end of the pushing rod away from the fine trimming blade.

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