Drawing head for testing tensile adhesive strength of tile adhesive

Abstract

The utility model discloses a drawing head for testing the tensile bonding strength of tile glue. The drawing head comprises a drawing component A, a drawing component B and a connecting piece, the drawing component A is convex, and a transverse through hole is formed in the side surface of the convex part of the drawing component A; the drawing component B is concave, and two side surfaces of the drawing component B are respectively provided with a through hole corresponding to the transverse penetrating through hole formed in the convex part of the drawing component A; and the drawing component A and the drawing component B are assembled into a regular blocky drawing head by the connecting piece through the transverse through hole in the drawing component A and the two corresponding through holes in the drawing component B. According to the drawing head for testing the tensile bonding strength of the ceramic tile adhesive, the problem that a conventional drawing head is easy to wear and deform in the cleaning and repeated use processes is solved, meanwhile, burning, scalding and fire accidents are avoided, irritant gas harmful to human health is reduced, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tile adhesive detection, in particular to a pulling head for testing the tensile bonding strength of tile adhesive. Background Art

[0002] Tensile bond strength is a core test item for tile adhesive products, including five treatment methods: standard state, immersion, heat aging, freeze-thaw cycle, and air conditioning. According to the requirements of the JC / T 547-2017 (ceramic tile adhesive) standard, a high-strength adhesive is needed to stick the pulling head on the ceramic tile to test the tensile bond strength of the tile adhesive. The pulling head is a square metal block with a length and width of 50 (±1) mm and a thickness of not less than 10 mm, usually made of steel. Under normal circumstances, the failure surface after the tensile bond strength test will appear between the bottom surface of the ceramic tile and the upper surface of the concrete slab. Therefore, after the test, the ceramic tile with tile adhesive on the back will adhere to the pulling head. Due to the relatively high cost of steel pulling heads, they are generally reused in actual tests. Before use, the adhesive and ceramic tile on the pulling head need to be cleaned. Usually, a heating plate is used to heat and melt the adhesive and a spatula is used to clean the surface of the pulling head.

[0003] Existing methods for cleaning and reusing drawing tips present several problems. First, high-temperature heating of the drawing tips can lead to oxidation, wear, and deformation, reducing test accuracy. Second, high-temperature treatment can easily lead to dangerous accidents such as fire, burns, and scalds. Furthermore, the adhesive melts and decomposes at high temperatures, potentially producing large amounts of irritating and harmful gases, posing a health risk to personnel. Finally, the operation is complex and requires significant labor costs.

[0004] Patent application publication CN219309549U discloses a device for cleaning cement mortar blocks on a pulling head, which includes a bracket, a heating device and a scraper mechanism. It can separate the pulling head and the mortar block after heating and softening the adhesive, shortening the cleaning time of the pulling head to a certain extent.

[0005] Patent application publication CN221269037U discloses a pulling head cleaning device for interlayer bonding performance, including a heating device, an electric lifting rod, a drive motor and a scraper. After heating and melting the adhesive, the drive motor is turned on to drive the scraper to clean the surface of the pulling head, which reduces labor intensity to a certain extent and reduces the contact time between personnel and harmful gases.

[0006] However, none of the above patent application publications have been able to fundamentally solve the above-mentioned problems. Utility Model Content

[0007] The purpose of the utility model is to provide a pulling head for testing the tensile bond strength of tile adhesive, which solves the problem that conventional pulling heads are easily worn and deformed during cleaning and reuse, and are prone to burns, scalds and fire accidents, and produce irritating and harmful gases that are harmful to human health, and consumes a lot of manpower costs. The utility model solves the problem that conventional pulling heads are easily worn and deformed during cleaning and reuse, while avoiding the occurrence of burns, scalds and fire accidents, and also avoids the production of irritating gases that are harmful to human health, and reduces labor costs.

[0008] In order to solve the above problems, the present invention is implemented through the following technical solutions:

[0009] A pulling head for testing the tensile bonding strength of tile adhesive, comprising: a pulling member A, a pulling member B, and a connecting piece;

[0010] The pulling member A is convex;

[0011] The side surface of the raised portion of the pulling member A is provided with a transverse through hole;

[0012] The drawing member B is concave, corresponding to the convex shape of the drawing member A, and two side surfaces of the drawing member B are respectively provided with through holes corresponding to the transverse through holes provided on the convex portion of the drawing member A;

[0013] The connecting piece assembles the drawing member A and the drawing member B into a regular block-shaped drawing head through the transverse through hole on the drawing member A and the two corresponding through holes on the drawing member B;

[0014] A longitudinal non-through connecting screw hole is vertically provided on the surface of the non-convex part of the pulling member A opposite to the convex part.

[0015] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0016] The non-through connection screw holes on the pulling member A are connected to the pulling test machine through bolts.

[0017] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0018] The shapes and sizes of the transverse through hole on the pulling member A, the two through holes on the pulling member B, and the connecting piece are kept consistent.

[0019] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0020] The transverse through hole on the pulling member A and the two through holes on the pulling member B are in a shape selected from the group consisting of a circle, an ellipse, a triangle, a square, a diamond, and a spiral;

[0021] The connecting piece is a columnar body corresponding to the shape of the transverse through hole and the through hole on the pulling member B.

[0022] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0023] The pulling member A and the connecting piece are made of stainless steel;

[0024] The pulling member B is made of ordinary steel.

[0025] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0026] The dimensions of the regular block-shaped drawing head assembled by the drawing member A, the drawing member B and the connecting piece are: 50 mm in length×50 mm in width×20 mm in height.

[0027] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0028] The thickness of the pulling member B is 2 mm.

[0029] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0030] The thickness of the raised portion of the pulling member A is 8 mm, and the thickness of the non-raised portion is 10 mm.

[0031] The pulling head for testing the tensile bond strength of tile adhesive of the utility model is further optimized as follows:

[0032] The positions of the transverse through holes provided on the raised portion of the pulling member A and the through holes provided on the two side surfaces of the pulling member B should be selected with full consideration given to maintaining sufficient spacing from the ends to avoid affecting the test use.

[0033] Existing methods of heating, cleaning, and reusing pull heads present numerous problems, including wear and deformation, the risk of burns, scalds, and fires, the generation of irritating and harmful gases that harm human health, and significant labor costs. To overcome these issues, this technical solution discloses a pull head for testing the tensile bond strength of tile adhesives, which achieves the following technical benefits:

[0034] (1) Compared with conventional disposable pulling heads, the pulling head design of the present invention allows only the pulling member B to be replaced, thereby significantly reducing the use of metal raw materials. In particular, by using ordinary steel as the material, costs can be further reduced. For example, if the height of a conventional pulling head and the pulling member B are both 10 mm, and the thickness of the pulling member B is 2 mm, the volume of the metal raw material is reduced by more than 70% compared to the conventional pulling head. In addition, the pulling member B of the pulling head of the present invention has a simple production process, low processing costs, and is easy to operate and use.

[0035] (2) The pulling head of the utility model does not need to be heated and cleaned before and after testing, thus completely avoiding dangerous accidents such as fire, burns, and scalds, as well as the generation of irritating and harmful gases, ensuring the safety of the laboratory and experimenters, while significantly reducing labor costs.

[0036] (3) The pulling head of the present invention adopts a modular design. The pulling member B is a disposable accessory that can be easily disassembled and replaced after testing without the need for heating and cleaning. This design ensures the dimensional accuracy of the pulling head, thereby guaranteeing the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the drawing head of the utility model;

[0038] Figure 2 for Figure 1 A schematic structural diagram of a drawing member A in a drawing head shown;

[0039] Figure 3 for Figure 1 A schematic structural diagram of a drawing member B in a drawing head shown;

[0040] Figure 4 for Figure 1 Schematic diagram of the structure of the connecting piece in the drawing head shown.

[0041] Description of the accompanying drawings:

[0042] 1-Pulling member A, 2-Pulling member B, 3-Connecting piece, 4-Non-through connecting screw hole, 5-Transverse through hole, 6-Through hole. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. Any simple improvements to the present invention based on the concepts of the present invention fall within the scope of protection of the present invention.

[0044] Example 1

[0045] A pulling head for testing the tensile bonding strength of tile adhesive, comprising: a pulling member A1, a pulling member B2 and a connecting member 3;

[0046] The pulling member A1 is convex;

[0047] The side surface of the raised portion of the pulling member A1 is provided with a transverse through hole 5;

[0048] A longitudinal non-through connecting screw hole 4 is vertically provided on the surface of the non-convex part of the pulling member A1 on the side opposite to the convex part;

[0049] The drawing member B2 is concave, corresponding to the convex shape of the drawing member A1, and is provided with through holes 6 on both sides of the drawing member B2, corresponding to the transverse through holes 5 provided on the convex portion of the drawing member A1;

[0050] The connecting member 3 assembles the drawing member A1 and the drawing member B2 into a regular block-shaped drawing head through the transverse through hole 5 on the drawing member A1 and the two corresponding through holes 6 on the drawing member B2.

[0051] The transverse through hole 5 on the pulling member A1 and the two through holes 6 on the pulling member B2 are circular through holes;

[0052] The connecting member 3 is a cylinder, and its circular cross section corresponds to the size of the transverse through hole 5 and the circular through hole 6.

[0053] The pulling member A1 and the connecting member 3 are made of stainless steel.

[0054] The pulling member B2 is made of ordinary steel.

[0055] The non-through connection screw holes 4 on the pulling member A1 can be connected to the pulling test machine through bolts.

[0056] The dimensions of the regular block-shaped drawing head assembled by the drawing member A1, the drawing member B2 and the connecting member 3 are: length 50 mm×width 50 mm×height 20 mm; the thickness of the drawing member B2 is 2 mm.

[0057] The positions of the transverse through holes 5 provided on the raised portion of the pulling member A1 and the through holes 6 provided on the two side surfaces of the pulling member B2 should be selected with full consideration given to maintaining sufficient spacing from the ends to avoid affecting the test.

[0058] The pulling member B2 can be disassembled and replaced after the tensile bonding strength test.

[0059] In addition, on the basis of the above-mentioned embodiment, adjusting the position and size of the pulling member A1 and the pulling member B2 and correspondingly setting the longitudinal non-penetrating connecting screw hole 4 are also embodiments of the present invention. For example, after the size of the pulling member B2 is adjusted, the longitudinal non-penetrating connecting screw hole 4 is set to connect with the pulling testing machine, thereby realizing the interchange of the positions of the pulling member A1 and the pulling member B2. After the replacement, the technical effect of the present technical solution can still be achieved.

[0060] In summary, the above are only preferred examples of the present invention and do not limit the present invention in any way. Any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above shall be regarded as equivalent examples of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

[0061] The expressions of the positions involved in the technical solution of the present invention, such as up, down, left, right, etc., are only for the purpose of clearly describing the corresponding structural connection methods, and are not intended to limit the specific actual positions of the present technical solution. Designs with the same or similar structures, connection methods and principles still fall within the scope of protection of the technical solution of the present invention.

[0062] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] Unless otherwise stated, the various optimization technical solutions in the present invention can be combined with each other.

[0064] Unless otherwise defined, all professional and scientific terms used herein have the same meaning as those familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to those described herein may be applied to the present invention.

Claims

1. A pulling head for testing the tensile bond strength of tile adhesive, characterized by: It includes: a pulling member A, a pulling member B and a connecting piece; The pulling member A is convex; The side surface of the raised portion of the pulling member A is provided with a transverse through hole; The drawing member B is concave, corresponding to the convex shape of the drawing member A, and two side surfaces of the drawing member B are respectively provided with through holes corresponding to the transverse through holes provided on the convex portion of the drawing member A; The connecting piece assembles the drawing member A and the drawing member B into a regular block-shaped drawing head through the transverse through hole on the drawing member A and the two corresponding through holes on the drawing member B; A longitudinal non-through connecting screw hole is vertically provided on the surface of the non-convex part of the pulling member A opposite to the convex part.

2. The pulling head for testing the tensile bond strength of tile adhesive according to claim 1, characterized in that: The non-through connection screw holes on the pulling member A are connected to the pulling test machine through bolts.

3. The pulling head for testing the tensile bond strength of tile adhesive according to claim 1, characterized in that: The shapes and sizes of the transverse through hole on the pulling member A, the two through holes on the pulling member B, and the connecting piece are kept consistent.

4. The pulling head for testing the tensile bond strength of tile adhesive according to claim 3, characterized in that: The transverse through hole on the pulling member A and the two through holes on the pulling member B are in a shape selected from the group consisting of a circle, an ellipse, a triangle, a square, a diamond, and a spiral; The connecting piece is a columnar body corresponding to the shape of the transverse through hole and the through hole on the pulling member B.

5. The pulling head for testing the tensile bond strength of tile adhesive according to claim 1, characterized in that: The pulling member A and the connecting piece are made of stainless steel; The pulling member B is made of ordinary steel.

6. The pulling head for testing the tensile bond strength of tile adhesive according to claim 1, characterized in that: The dimensions of the regular block-shaped drawing head assembled by the drawing member A, the drawing member B and the connecting piece are: 50 mm in length×50 mm in width×20 mm in height.

7. The pulling head for testing the tensile bond strength of tile adhesive according to claim 5, characterized in that: The thickness of the pulling member B is 2 mm.

8. The pulling head for testing the tensile bond strength of tile adhesive according to claim 5, characterized in that: The thickness of the raised portion of the pulling member A is 8 mm, and the thickness of the non-raised portion is 10 mm.

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