CN214309861U

CN214309861U - Foam board tensile strength measuring clamp

Info

Publication number: CN214309861U
Application number: CN202120314141.6U
Authority: CN
Inventors: 王天博; 杨京明; 李勇军
Original assignee: Hunan Tede Testing And Certification Co ltd
Current assignee: Hunan Tede Testing And Certification Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-09-28
Anticipated expiration: 2031-02-04

Abstract

The utility model provides a foam board tensile strength measuring clamp, which comprises an upper bonding block (1), a lower bonding block (2), a support (3), a base (4) and a stress spring (5), wherein the lower bonding block (2) and the support (3) can be quickly and accurately centered, so that the problem of uneven tensile stress distribution caused by inaccurate centering in the test process is avoided; the concave design of the lower bonding block (2) has the function of bonding area calibration, and can judge whether the size and shape of the area of the two sides of the sample bonded meet the standard or not; the design of the stress spring (5) can avoid the influence of the downward stress generated by the self gravity of the whole system on the accuracy of experimental data. The utility model provides a pair of cystosepiment tensile strength measures anchor clamps has easy and simple to handle, safe in utilization and measures accurate characteristics, combines with universal tester to measure standard sample's tensile strength conveniently, accurately.

Description

Foam board tensile strength measuring clamp

Technical Field

The utility model relates to a material property test technical field, concretely relates to cystosepiment tensile strength measures anchor clamps.

Background

The size of a sample, the test process and the treatment of the test result are only specified in 6.5.1 tensile strengths perpendicular to the layout direction in the GB/T29906-containing 2013 molded polyphenyl board thin-plastered external thermal insulation system material. However, the standard for fixing the test sample and selecting the tensile clamp is not described in detail, and the citation of the relevant standard is not seen in the citation of the prior normative document, so that the company designs and invents the set of clamps as the supplement of the standard, thereby facilitating the test.

The tensile strength measuring clamp matched with the standard is not retrieved, and the simple, effective and accurate matched measuring clamp is provided for measuring the tensile strength of the sample under the standard, so that the important significance is achieved.

Disclosure of Invention

The utility model provides a cystosepiment tensile strength measurement anchor clamps for measure in GB/T29906 mang-up 2013 thin outer wall external thermal insulation system material of plastering of moulding polyphenyl board the tensile strength of sample, for realizing the above-mentioned utility model purpose, the utility model discloses a technical scheme is:

a foam plate tensile strength measuring clamp comprises an upper bonding block, a lower bonding block, a support, a base and a stress spring, wherein the upper bonding block and the lower bonding block are respectively connected with the upper surface and the lower surface of a sample to be measured; the number of the supports is at least 2, the supports are positioned on the base, are respectively arranged on two sides of the lower bonding block and are used for fixing the lower bonding block; the stress spring is positioned below the lower bonding block, one end of the stress spring is connected with the bottom of the lower bonding block, and the other end of the stress spring is connected with the base.

Preferably, a notch is formed in the middle of one pair of edges of the lower bonding block, and a protrusion matched with the notch (201) of the lower bonding block is arranged on the support.

Preferably, the base center is provided with a pillar for connecting with a stressed spring.

Preferably, the notches and the protrusions are designed into 90-degree isosceles triangles, so that the centering can be better performed without deviation, and the notches and the protrusions are stable and difficult to slide.

Preferably, the center of the upper bonding block is also provided with a first connecting column used for connecting a lifting end of a universal testing machine, and the upper bonding block is lifted upwards to a position where a test sample is just damaged when the universal testing machine is used.

Preferably, the center of the lower bonding block is sunken, has the same depth as the notch and is matched with the size and shape of a standard sample; before bonding with a sample, the front and back sides of the sample can be sleeved into the concave part of the lower bonding block, so that whether the size of the sample is standard or not can be observed, and the device has an area calibration function.

Preferably, the base is provided with a slide rail, the support is nested with the base through the slide rail, and the support can slide, so that samples with different sizes can be matched and measured.

Preferably, the center of the base is also provided with a second connecting column for connecting the bottom end of the universal testing machine.

Preferably, the first connecting column is provided with an internal thread, so that the connection with the lifting end of the universal testing machine is more stable.

Preferably, the base is further provided with scale marks along the direction of the sliding rail, and the position of the support can be determined by comparing the scale marks before the sample is placed.

Preferably, the second spliced pole is equipped with the through-hole in the horizontal direction, and mode through the bolt is connected fixedly with universal tester bottom.

Compared with the prior art, the utility model has the advantages that:

1. the utility model provides a pair of cystosepiment tensile strength measures anchor clamps has easy and simple to handle, safe in utilization and measures accurate characteristics, combines with universal tester to measure standard sample's tensile strength conveniently, accurately.

2. Furthermore, due to the design of the notch and the protrusion, the lower bonding block and the support can be centered quickly and accurately, and the problem of uneven tensile stress distribution caused by inaccurate centering in the test process is avoided.

3. Furthermore, the concave design of the lower bonding block also has a bonding area calibration function, and whether the area size and the shape of the two surfaces of the sample bonded meet the standard or not can be judged.

4. Furthermore, the stress spring is arranged on the support column arranged in the center of the base, so that the influence of the downward stress generated by the self gravity of the whole system on the accuracy of the experimental data can be avoided.

Drawings

FIG. 1 is a general view of a tensile strength measuring jig for a foam board according to an embodiment;

FIG. 2 is a three-dimensional view of the upper bond block in the embodiment, in which FIG. (a) is a top view, FIG. (b) is a front view, and FIG. (c) is a left side view;

FIG. 3 is a diagram of a lower adhesive block according to an embodiment, in which FIG. (a) is a top view, FIG. (b) is a front view, FIG. (c) is a left side view, and FIG. (d) is an AA cross-sectional view;

FIG. 4 is a view showing a combination of the holder and the base in the embodiment, wherein (a) is a front view, (b) is a left side view, and (c) is a top view;

wherein, 1 is an upper bonding block, 2 is a lower bonding block, 3 is a support, 4 is a base, 5 is a stressed spring, 101 is a first connecting column, 201 is a notch, 301 is a protrusion, 401 is a sliding rail, 402 is a support column, and 403 is a second connecting column.

Detailed Description

The details of the structure and use of the invention are further described in the following description of the preferred embodiments with reference to the accompanying drawings.

Example (b):

a foam plate tensile strength measuring clamp is shown in figures 1-4 and comprises an upper bonding block 1, a lower bonding block 2, a support 3, a base 4 and a stress spring 5, wherein the upper bonding block 1 and the lower bonding block 2 are respectively connected with the upper surface and the lower surface of a sample to be measured; the number of the supports 3 is at least 2, and the supports 3 are positioned on the base 4, are respectively arranged on two sides of the lower bonding block 2 and are used for fixing the lower bonding block 2; the stress spring 5 is positioned below the lower bonding block 2, one end of the stress spring is connected with the bottom of the lower bonding block 2, and the other end of the stress spring is connected with the base 4. The middle point of a pair of edges of the lower bonding block 2 is provided with a notch 201, and the support 3 is provided with a protrusion 301 matched with the notch 201 of the lower bonding block 2. The base 4 is provided with a pillar 402 at the center for connecting with a stressed spring 5. The center of the upper bonding block 1 is also provided with a first connecting column 101, and the base 2 is provided with a slide rail; 401, the support 3 is nested with the base 4 through a sliding rail 401, and the support 3 can slide; a second connecting column 402 is also arranged in the center of the base 4.

As shown in fig. 2, the upper bonding block 1 has a side length of 100mm and a height of 5 mm; the inner diameter of the first connecting column 101 is 11mm, the outer diameter is 20mm, and the height is 10 mm.

As shown in fig. 3, the lower bonding block 2 has an inner side length of 100mm, a recess of 4mm, an outer side length of 124mm and a height of 8 mm; the notch 201 is located a pair of edges and goes out, and is a 4mm high isosceles right triangle.

As shown in fig. 4, the support 3 has a height of 60mm and a width of 30mm, the upper and lower parts are respectively 25mm long and 10mm high, the protrusion 301 is 4mm high and is a 90 ° isosceles triangle, and is aligned with the notch 201; the inlay embedded with the slide rail 401 is in a convex shape, the upper part is 4mm long and 3mm high, and the lower part is 10mm long and 4mm high; the base 4 is 300mm long, 30mm wide and 20mm high; the support is a solid cylinder with the diameter of 10mm and the height of 10 mm; the diameter of the second connecting column 403 is 18mm, the height of the second connecting column is 55mm, and a through hole with the diameter of 10mm is transversely arranged at a position 16mm away from the bottom end.

The using method is as shown in figure 1:

the method comprises the following steps: firstly, calibrating the area of a sample, sleeving the front side and the back side of the sample into the lower bonding block 2, and bonding the two sides of the sample with the upper bonding block 1 and the lower bonding block 2 by using epoxy resin AB glue after ensuring that the sizes and the shapes of the two sides of the sample are standard sizes;

step two: the base 4 is fixedly connected with the bottom end of a universal testing machine in a plug pin mode through the second connecting column 403;

step three: nesting the support 3 with a base 4 through a sliding rail 401, and sleeving the stressed spring 5 on the support 402;

step four: placing the lower bonding block 2 bonded in the first step on the stressed spring 5, and aligning the protrusion 301 with the notch 201 by using the sliding support 3;

step five: connecting and fixing the lifting end of the universal testing machine and the bonded upper bonding block 1 through a first connecting column 101;

and step six, opening the universal testing machine, starting to lift the upper bonding block 1 until the sample is just damaged, wherein the tensile strength displayed on the universal testing machine is the tensile strength of the sample.

The above description is a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its concept within the technical scope of the present invention.

Claims

1. The foam plate tensile strength measuring clamp is characterized by comprising an upper bonding block (1), a lower bonding block (2), a support (3), a base (4) and a stress spring (5), wherein the upper bonding block (1) and the lower bonding block (2) are respectively connected with the upper surface and the lower surface of a sample to be measured; the number of the supports (3) is at least 2, and the supports (3) are positioned on the base (4), are respectively arranged on two sides of the lower bonding block (2) and are used for fixing the lower bonding block (2); the stress spring (5) is positioned below the lower bonding block (2), one end of the stress spring is connected with the bottom of the lower bonding block (2), and the other end of the stress spring is connected with the base (4).

2. The foam board tensile strength measuring clamp according to claim 1, wherein a notch (201) is arranged at the center of a pair of edges of the lower bonding block (2), and the support (3) is provided with a protrusion (301) matched with the notch (201) of the lower bonding block (2).

3. The foam board tensile strength measuring clamp according to claim 1, wherein the base (4) is provided with a pillar (402) at the center for connecting with a stressed spring (5).

4. The foam board tensile strength measuring clamp according to claim 1, wherein a first connecting column (101) is further provided at the center of the upper bonding block (1).

5. The foam board tensile strength measuring fixture according to claim 1, wherein the lower bonding block (2) is centrally recessed.

6. The foam board tensile strength measuring clamp according to claim 1, wherein the base (4) is provided with a slide rail (401), and the support (3) is connected with the base (4) in a nesting manner through the slide rail (401).

7. The foam board tensile strength measuring clamp according to claim 1, wherein a second connecting column (403) is further provided in the center of the base (4).

8. The foam board tensile strength measuring fixture of claim 4, wherein the first connecting column (101) is internally threaded.

9. The foam board tensile strength measuring clamp according to claim 6, wherein the base (4) is provided with scale marks along the direction of the sliding rail (401).

10. The foam board tensile strength measuring clamp according to claim 7, wherein the second connecting column (403) is provided with a through hole in a horizontal direction.