Drawing head fixing device of test piece for testing adhesive property of waterproof coating

By using fixing devices of positioning frames and positioning chambers in the production of specimens for waterproof coating bonding performance tests, the difficulty of manually adjusting the position of the pulling head is solved, and the accurate positioning of the pulling head and the improvement of the quality of the specimens is achieved.

CN222529211UActive Publication Date: 2025-02-25JINGMEN ORIENTAL YUHONG BUILDING MATERIALS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323551677.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2025-02-25
Estimated Expiration
2033-12-25

AI Technical Summary

Technical Problem

During the production process of the test piece for the bonding performance of waterproof coatings, the position of the pulling head needs to be manually adjusted several times, which consumes manpower and it is difficult to ensure that the pulling head is bonded to the center of the cement mortar test block.

Method used

Provided is a pulling head fixing device including a first positioning frame and a second positioning frame, through the first positioning chamber and the second positioning chamber respectively accommodate the cement mortar test block and the pulling head, limiting their relative position, and ensuring the pulling head Keep it in the center of the cement mortar test block when the epoxy resin glue is not cured.

Benefits of technology

The number of times the pulling head position is manually adjusted, the quality of the test piece production and the accuracy of testing are improved, and labor and labor consumption is saved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222529211U_ABST
    Figure CN222529211U_ABST
Patent Text Reader

Abstract

The utility model provides a drawing head fixing device of a test piece for testing the adhesive property of a waterproof coating, which relates to the technical field of manufacturing of the test piece for testing the adhesive property of the waterproof coating, and comprises a first positioning frame, a second positioning frame, a third positioning frame and a fourth positioning frame, the housing is used for accommodating cement mortar test blocks; the second positioning frame is arranged on the upper side of the first positioning frame, a second positioning cavity is formed in the second positioning frame, and the second positioning cavity is matched with the drawing head in size and used for containing the drawing head; when the drawing head is located in the second positioning cavity and the cement mortar test block is located in the first positioning cavity, the drawing head is located in the center of the upper side of the cement mortar test block; the problems that in the prior art, in the manufacturing process of a test piece for testing the bonding performance of the waterproof coating, the position of a drawing head needs to be manually adjusted for multiple times, manpower is consumed, and it is difficult to guarantee that the drawing head is bonded to the center position of a cement mortar test block are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of test piece manufacturing for testing the bonding performance of waterproof coatings, and more specifically relates to a pulling head fixing device for a test piece for testing the bonding performance of waterproof coatings. Background Art

[0002] The mechanical properties of two-component polymer cement waterproof coatings are implemented in accordance with GB / T23445-2009. The bond strength test specimen is a 70×70×20mm cement mortar specimen. After standard coating curing, it is firmly bonded to a 40×40mm pulling head with epoxy resin glue and tested in accordance with the test method of GB / T16777-2008. During the specimen installation process, the center line of the specimen surface in the vertical direction must be kept in line with the center of the tensile machine fixture. During the bonding process of the pulling head to the cement mortar specimen, it is necessary to ensure that the pulling head remains in the center of the cement mortar specimen, which is very necessary for the convenience of the test process and the accuracy of the test data.

[0003] The current method for preparing the specimen is to bond the pulling head to the prepared cement mortar specimen with epoxy resin glue. After bonding, the pulling head will slip because the epoxy resin glue is not cured. To facilitate the test, before the epoxy resin glue is cured, the position of the pulling head needs to be manually adjusted many times to keep it in the center of the cement mortar specimen. If the pulling head slips, on the one hand, it will waste time to constantly adjust the position of the tensile machine fixture before the test, otherwise it will affect the accuracy of the test data; on the other hand, if the deviation is too large, the specimen will not be able to be installed on the fixture, and the test cannot be performed. Utility Model Content

[0004] The purpose of the utility model is to provide a pulling head fixing device for a test piece for testing the bonding performance of a waterproof coating in view of the deficiencies in the prior art, so as to solve the problem that during the production process of the test piece for testing the bonding performance of a waterproof coating in the prior art, the position of the pulling head needs to be manually adjusted multiple times, which is manpower-consuming and it is difficult to ensure that the pulling head is bonded to the center position of the cement mortar test block.

[0005] In order to achieve the above object, the utility model provides a pulling head fixing device for a test piece used for testing the bonding performance of a waterproof coating, comprising:

[0006] A first positioning frame, wherein a first positioning cavity is formed inside the first positioning frame, and the first positioning cavity matches the size of the cement mortar test block and is used to accommodate the cement mortar test block;

[0007] A second positioning frame, the second positioning frame is arranged on the upper side of the first positioning frame, a second positioning cavity is formed inside the second positioning frame, and the second positioning cavity matches the size of the pulling head and is used to accommodate the pulling head;

[0008] When the pulling head is in the second positioning cavity and the cement mortar test block is in the first positioning cavity, the pulling head is located at the upper center position of the cement mortar test block.

[0009] Optionally, the first positioning frame includes two vertical plates that are arranged opposite to and in parallel, and the first positioning cavity is formed between the two vertical plates.

[0010] Optionally, the two vertical plates are connected by a first connecting component.

[0011] Optionally, the second positioning frame includes four strip-shaped components connected to form a rectangle.

[0012] Optionally, the distance between each pair of oppositely arranged strip-shaped components is 42 mm.

[0013] Optionally, the second positioning frame is connected to the first positioning frame through a second connecting component.

[0014] Optionally, both ends of the second positioning frame are connected to the upper ends of the two vertical plates via a second positioning component respectively.

[0015] Optionally, the first positioning cavity can accommodate multiple cement mortar test blocks arranged in a straight line, and multiple second positioning frames are provided. The multiple second positioning frames are arranged in a straight line in the middle of the upper side of the second positioning frame, so that the pulling head in each second positioning cavity is located at the upper center position of a cement mortar test block in the first positioning cavity.

[0016] Optionally, the first positioning cavity can accommodate five cement mortar test blocks arranged in a straight line, and five second positioning frames are provided.

[0017] Optionally, the distance between the two vertical plates is 72 mm, the height of each vertical plate is 25 mm, and the length of each vertical plate is an integer multiple of 70 mm.

[0018] The utility model provides a pulling head fixing device for a test piece for testing the bonding performance of a waterproof coating, and its beneficial effects are: the pulling head fixing device for a test piece for testing the bonding performance of a waterproof coating comprises a first positioning frame and a second positioning frame, the second positioning frame is connected to the upper side of the first positioning frame, the relative positions of the two are fixed, a first positioning cavity and a second positioning cavity are respectively arranged in the first positioning frame and the second positioning frame, when the pulling head is bonded to a cement mortar test block by epoxy resin glue and the epoxy resin glue is not solidified, the cement mortar test block and the pulling head are respectively accommodated by the first positioning cavity and the second positioning cavity, the relative positions of the two are restricted, and the pulling head can be ensured to be at the upper center position of the cement mortar test block, the production quality of the test piece is ensured, the accuracy of the test is improved, and there is no need to manually adjust the position of the pulling head multiple times, thereby reducing the consumption of labor and manpower.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0021] Figure 1 A schematic structural diagram of a pulling head fixing device for a test piece used for testing the bonding performance of a waterproof coating according to an embodiment of the utility model is shown.

[0022] Description of reference numerals:

[0023] 1. First positioning frame; 2. Second positioning frame; 3. First connecting component; 4. Second connecting component. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0025] like Figure 1 As shown, the utility model provides a pulling head fixing device for a test piece used for testing the bonding performance of a waterproof coating, comprising:

[0026] A first positioning frame 1, wherein a first positioning cavity is formed inside the first positioning frame 1, and the first positioning cavity matches the size of the cement mortar test block and is used to accommodate the cement mortar test block;

[0027] A second positioning frame 2, which is arranged on the upper side of the first positioning frame 1, and a second positioning cavity is formed inside the second positioning frame 2, and the second positioning cavity matches the size of the drawing head and is used to accommodate the drawing head;

[0028] When the pulling head is in the second positioning cavity and the cement mortar test block is in the first positioning cavity, the pulling head is located at the upper center position of the cement mortar test block.

[0029] Specifically, in order to solve the problem that in the prior art, during the production process of the test piece for testing the bonding performance of waterproof coatings, it is necessary to manually adjust the position of the pulling head for many times, which consumes manpower and is difficult to ensure that the pulling head is bonded to the center position of the cement mortar test block; the pulling head fixing device of the test piece for testing the bonding performance of waterproof coatings provided by the utility model comprises a first positioning frame 1 and a second positioning frame 2, the second positioning frame 2 is connected to the upper side of the first positioning frame 1, and the relative positions of the two are fixed. A first positioning cavity and a second positioning cavity are respectively arranged in the first positioning frame 1 and the second positioning frame 2. When the pulling head is bonded to the cement mortar test block by epoxy resin glue and the epoxy resin glue is not cured, the cement mortar test block and the pulling head are respectively accommodated by the first positioning cavity and the second positioning cavity, and the relative positions of the two are restricted, which can ensure that the pulling head is in the upper center position of the cement mortar test block, ensure the production quality of the test piece, improve the accuracy of the test, and do not need to manually adjust the position of the pulling head for many times, thereby reducing the consumption of labor and manpower.

[0030] Optionally, the first positioning frame 1 includes two vertical plates that are arranged opposite to and in parallel, and a first positioning cavity is formed between the two vertical plates.

[0031] Specifically, the spacing between the two vertical plates matches the side length of the cement mortar test block, and the cement mortar test block is clamped between the two vertical plates for positioning.

[0032] Furthermore, with regard to the limitation of the cement mortar block in another direction, in the present embodiment, the length of the vertical plate is equal to the side length of the cement mortar block, so the positioning effect can be achieved as long as they are aligned; in another embodiment, a baffle may be provided at at least one end of the vertical plate to further limit the cement mortar test block in another direction.

[0033] Optionally, the two vertical plates are connected via a first connecting component 3 .

[0034] Specifically, the first connecting component 3 may be a first connecting rod, and the two vertical plates are connected at both ends of the two vertical plates by two first connecting rods to form an integral structure.

[0035] In this embodiment, the material of the vertical plate and the first connecting rod is a 2 mm thick stainless steel plate, and the first connecting rod is made into a rod shape with a width of 2 mm.

[0036] Optionally, the second positioning frame 2 includes four strip-shaped components connected into a rectangle.

[0037] Specifically, the second positioning frame 2 is connected by four strip-shaped components to form a rectangular structure, and a second positioning cavity is formed inside the second positioning frame 2 to position the pulling head.

[0038] Optionally, the distance between each pair of oppositely disposed strip-shaped components is 42 mm.

[0039] Specifically, since the standard size of the pulling head is 40×40 mm, in order to facilitate the placement of the pulling head into the second positioning cavity and the positioning effect of the pulling head, the distance between the pair of opposite strip-shaped components is 42 mm.

[0040] In this embodiment, the material of the strip-shaped component is a stainless steel plate, and the thickness and width thereof are both 2 mm.

[0041] Optionally, the second positioning frame 2 is connected to the first positioning frame 1 via a second connecting component 4 .

[0042] Specifically, the second connecting member 4 may be a second connecting rod, and the second positioning frame 2 is fixed on the first positioning frame 1 via the second connecting rod.

[0043] In this embodiment, the material of the second connecting rod is a stainless steel plate with a thickness of 2 mm, and the second connecting rod is formed into a rod shape with a width of 2 mm.

[0044] Optionally, two ends of the second positioning frame 2 are connected to the upper ends of the two vertical plates through a second positioning component respectively.

[0045] Specifically, the second positioning frame 2 is fixed by connecting two second connecting rods to the midpoints of a pair of oppositely disposed strip-shaped components of the second positioning frame 2 and connecting them to the vertical plate.

[0046] Optionally, the first positioning cavity can accommodate multiple cement mortar test blocks arranged in a straight line, and multiple second positioning frames 2 are provided. The multiple second positioning frames 2 are arranged in a straight line in the middle of the upper side of the second positioning frame 2, so that the pulling head in each second positioning cavity is located at the upper center position of a cement mortar test block in the first positioning cavity.

[0047] Specifically, in order to produce multiple specimens at one time, multiple cement mortar test blocks can be positioned in the first positioning cavity at one time, and the multiple cement mortar test blocks are compactly arranged in the first positioning cavity. Multiple second positioning frames 2 are connected to the vertical plate through multiple second connecting rods, and their positions correspond one-to-one to the multiple first positioning frames 1.

[0048] In this embodiment, if the vertical plate is divided equally along the length direction, each second connecting rod is connected to the midpoint of each length of a vertical plate after being divided equally.

[0049] Optionally, the first positioning cavity can accommodate five cement mortar test blocks arranged in a straight line, and five second positioning frames 2 are provided.

[0050] Specifically, since the polymer cement waterproof coating bonding performance test standard stipulates that 5 test pieces form a group, the device can complete the production of 5 test pieces at one time.

[0051] Optionally, the distance between two vertical plates is 72 mm, the height of each vertical plate is 25 mm, and the length of each vertical plate is an integer multiple of 70 mm.

[0052] Specifically, since the standard size of the cement mortar test block is 70×70×20mm, in order to facilitate the placement of the cement mortar test block into the first positioning cavity and the positioning effect of the cement mortar test block, the distance between the two vertical plates is 72mm and the height is 25mm, ensuring that the second positioning frame 2 on the upper side of the first positioning frame 1 can be sleeved on the outer periphery of the pulling head to position it; the length of each vertical plate is an integer multiple of the side length of the cement mortar test block, so that multiple closely arranged cement mortar test blocks can be placed at one time, and the two ends only need to be aligned with the edges of the vertical plates to ensure the positioning of the cement mortar test blocks. It is easy to use and quick to position. The device is simple to manufacture and saves costs.

[0053] In summary, when the pulling head fixing device for testing the bonding performance of waterproof coatings provided by the utility model is used, the production of 5 test pieces is taken as an example: first, the 5 pulling heads are respectively bonded to 5 cement mortar test blocks through epoxy resin glue, and the position is roughly centered. Before the epoxy resin glue is cured, the 5 cement mortar test blocks are closely arranged and placed in a first positioning frame 1. At the same time, the pulling head on each cement mortar test block is inserted into a second positioning frame 2, and aligned and fixed to prevent the pulling head from slipping during the curing of the epoxy resin glue and causing the bonding position to shift. After a set period of time, the device can be removed before the epoxy resin glue is completely cured, and the excess epoxy resin glue overflowing from the bottom of the pulling head is scraped off. After it is completely cured, it is cut and tested according to standard requirements.

[0054] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A pulling head fixing device for a specimen used for testing the bonding performance of a waterproof coating, characterized in that: include: A first positioning frame, wherein a first positioning cavity is formed inside the first positioning frame, and the first positioning cavity matches the size of the cement mortar test block and is used to accommodate the cement mortar test block; A second positioning frame, the second positioning frame is arranged on the upper side of the first positioning frame, a second positioning cavity is formed inside the second positioning frame, and the second positioning cavity matches the size of the pulling head and is used to accommodate the pulling head; When the pulling head is in the second positioning cavity and the cement mortar test block is in the first positioning cavity, the pulling head is located at the upper center position of the cement mortar test block.

2. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 1, characterized in that: The first positioning frame includes two vertical plates that are arranged opposite to and in parallel, and the first positioning cavity is formed between the two vertical plates.

3. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 2, characterized in that: The two vertical plates are connected by a first connecting component.

4. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 2, characterized in that: The second positioning frame includes four strip-shaped components connected to form a rectangle.

5. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 4, characterized in that: The distance between each pair of oppositely arranged strip-shaped components is 42 mm.

6. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 4, characterized in that: The second positioning frame is connected to the first positioning frame through a second connecting component.

7. The pulling head fixing device for a test piece used for testing the adhesion performance of waterproof coating according to claim 6, characterized in that: Both ends of the second positioning frame are connected to the upper ends of the two vertical plates through a second positioning component respectively.

8. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 1, characterized in that: The first positioning cavity can accommodate multiple cement mortar test blocks arranged in a straight line, and multiple second positioning frames are provided. The multiple second positioning frames are arranged in a straight line in the middle of the upper side of the second positioning frame, so that the pulling head in each second positioning cavity is located at the upper center position of a cement mortar test block in the first positioning cavity.

9. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 8, characterized in that: The first positioning cavity can accommodate five cement mortar test blocks arranged in a straight line, and five second positioning frames are provided.

10. The pulling head fixing device for a specimen used for waterproof coating bonding performance testing according to claim 2, characterized in that: The distance between the two vertical plates is 72 mm, the height of each vertical plate is 25 mm, and the length of each vertical plate is an integer multiple of 70 mm.