Auxiliary device for compression-shear strength test of formed marble adhesive

Abstract

The utility model relates to an auxiliary device for a compression-shear strength test of a formed marble adhesive, which comprises a bottom plate, a fixed side plate and a push-pull side plate, the fixed side plate and the bottom plate are fixed by welding, and the push-pull side plate can translate on the bottom plate to control the distance between the push-pull side plate and the fixed side plate. Limiting fixing blocks are arranged on the opposite side walls of the fixing side plate and the push-pull side plate to clamp a test block. The limiting fixing blocks on the fixed side plate and the push-pull side plate can quickly clamp a test piece, the test piece can be quickly positioned without a marking tool and a steel ruler, the requirement of a test on the size of a stone lap joint surface is ensured, and meanwhile, the influence of shaking and inclination of the test piece on a test result during sample preparation is avoided.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for testing the compressive shear strength of molded marble adhesives, belonging to the field of marble adhesive compressive shear strength testing equipment. Background Technology

[0002] Marble adhesives, characterized by high strength and rapid curing, have been widely used in building curtain wall engineering. Compressive-shear bond strength is a crucial indicator for evaluating the performance of marble adhesives, directly reflecting their bonding ability. Test results provide valuable reference for determining their suitability for engineering applications. Relevant standards and specifications JC / T989 and JC / T887 clearly specify the requirements and regulations for the adhesive layer thickness and overlap dimensions of the compressive-shear strength test specimens, and briefly introduce the need for gentle pressing of the two substrates during sample preparation. However, they lack specific operational steps and test methods. A key challenge in sample preparation is how to precisely control the adhesive layer thickness, overlap dimensions, and pressing force to ensure a flat overlap surface and prevent specimen shaking or tilting. Without auxiliary devices for positioning the stone substrate during sample preparation, the adhesive layer thickness cannot be precisely controlled, and uneven pressing force can lead to uneven specimen thickness and tilting. During compressive shear strength tests, the tilted specimen and uneven force distribution on the testing machine can easily lead to the stone substrate failing before the adhesive layer fails, resulting in inaccurate test results. Re-preparing new specimens is time-consuming and labor-intensive, significantly reducing testing efficiency. Therefore, it is necessary to design an auxiliary device that can precisely control the adhesive layer thickness and quickly locate the overlap dimensions of the substrate in the compressive shear strength test of molded marble adhesives, thereby improving the accuracy of the test results.

[0003] For the compressive shear strength test of marble adhesive, relevant standards and specifications clearly require specific requirements for the adhesive layer thickness and overlap dimensions during sample preparation. However, if the adhesive layer thickness is not precisely controlled during sample preparation, and the stone substrate is not positioned using auxiliary devices, the compressive shear strength test may result in large dispersion in the measured data or a situation where the stone substrate is damaged but the adhesive layer remains intact. To address this issue, Chinese patent document CN222871966U provides a "Sample Fixture for Testing the Compressive Shear Strength of Dry-Hanging Stone Curtain Wall Adhesive," comprising a base, a locking block, a stop block, a slider, and a positioning screw. The locking block and positioning screw constrain and fix the prepared specimen during the compressive shear strength test, preventing the specimen from flipping or moving during the test, ensuring the stability of the specimen and improving test accuracy. However, this method also has shortcomings: the device cannot control the adhesive layer thickness before sample preparation, and the stone substrate cannot be quickly positioned. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for testing the compressive shear strength of molded marble adhesive in order to solve one of the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An auxiliary device for testing the compressive shear strength of molded marble adhesive includes a base plate, a fixed side plate, and a push-pull side plate. The fixed side plate is fixed to the base plate by welding. The push-pull side plate can be moved on the base plate to control the distance between it and the fixed side plate. Limiting and fixing blocks are provided on the opposite side walls of the fixed side plate and the push-pull side plate to clamp the test block.

[0007] Further technology of this utility model:

[0008] Preferably, the base plate has a through-hole for glue leakage in the middle.

[0009] Preferably, the bottom plate is provided with slide rails on both sides, and the slide rails are fixed to the bottom plate by spot welding. The glue leakage box is slidably installed on the slide rails, and the glue leakage box is connected to the bottom of the through glue leakage opening.

[0010] Preferably, the limiting and fixing block has a test block fixing rod spirally at its center.

[0011] Preferably, a connecting rod is provided on one side of the fixed side plate, and the push-pull side plate can move freely on the base plate through the connecting rod.

[0012] Preferably, the connecting rod is a screw rod, and the connecting rod is fixed to the fixed side plate by bolts, with a nut installed at the end of the connecting rod that passes through the push-pull side plate.

[0013] Preferably, a limiter is screwed on the connecting rod between the fixed side plate and the push-pull side plate to limit the movement of the push-pull side plate.

[0014] Preferably, a scale is provided on the base plate along the axial direction of the connecting rod.

[0015] Preferably, the push-pull side plate and the fixed side plate are provided with threaded holes, and a thickness adjustment rod is spirally connected in the threaded holes.

[0016] Preferably, a spring is provided on the connecting rod between the fixed side plate and the push-pull side plate.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] The limiting and fixing blocks on the fixed side plate and the sliding side plate of this utility model can quickly clamp the test block. The test specimen can be quickly positioned without the need for scribing tools or steel rulers, ensuring the test requirements for the dimensions of the stone overlap surface, and avoiding the influence of test specimen shaking or tilting on the test results during sample preparation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a front view of Embodiment 1 of the present invention.

[0022] Figure 3 This is a side view of Embodiment 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1-3 As shown, an auxiliary device for testing the compressive shear strength of a molded marble adhesive includes a base plate 2, a fixed side plate 1, and a push-pull side plate 3. The fixed side plate 1 is fixed to the base plate 2 by welding. The push-pull side plate 3 can be moved on the base plate 2 to control the distance between it and the fixed side plate 1. Limiting and fixing blocks 7 are provided on the opposite side walls of the fixed side plate 1 and the push-pull side plate 3 to clamp the test block.

[0026] In this utility model, both the fixed side plate 1 and the push-pull side plate 3 are provided with two limiting and fixing blocks. When the push-pull side plate 3 is moved, the limiting and fixing blocks can quickly clamp the test block.

[0027] The limiting and fixing block 7 has a test block fixing rod 8 spirally attached to its center. The test block is further clamped by the test block fixing rod 8.

[0028] Furthermore, the base plate 2 has a through-hole 9 for discharging adhesive.

[0029] The base plate 2 is provided with slide rails 10 on both sides below. The slide rails 10 are fixed to the base plate 2 by spot welding. The glue leakage box 11 is slidably installed on the slide rails 10 and is connected to the bottom of the through glue leakage opening 9.

[0030] A movable glue leakage cleaning box is provided under the base plate, which facilitates the removal of residual glue from the test bench surface during sample preparation, thus protecting the test bench surface from contamination.

[0031] A connecting rod 5 is provided on one side of the fixed side plate 1, and the push-pull side plate 3 can move freely on the base plate 2 through the connecting rod 5.

[0032] The connecting rod 5 is a screw rod, and the connecting rod 5 is fixed to the fixed side plate 1 by bolts.

[0033] The connecting rod 5 between the fixed side plate 1 and the push-pull side plate 3 has a screw limiter 6 to limit the movement of the push-pull side plate 3.

[0034] In this embodiment, the limiter 6 is a ring structure with a thread on the inner wall that mates with the connecting rod. The ring structure is equipped with a fastening screw, which is rotated to press against the thread on the connecting rod to fix its position.

[0035] It should be noted that in the above embodiment, a nut 15 is provided at the end of the connecting rod 5 that passes through the push-pull side plate 3. After the push-pull side plate 3 moves to the designated position, the nut and the limiter 6 clamp the push-pull side plate 3.

[0036] A scale 4 is provided on the base plate 2 along the axial direction of the connecting rod 5.

[0037] A scale is provided above the base plate, which can be used to freely adjust and push the side plate to the specified scale according to the requirements of the adhesive layer thickness. Under the action of the limiter, it meets the requirements of the specification for adhesive layer thickness control and has a wide range of applications for sample preparation thickness.

[0038] It should be noted that in this embodiment, a triangular fixing block 12 is provided on the outer wall of the push-pull side plate 3 to support the push-pull side plate 3 and prevent tilting during the clamping of the specimen.

[0039] Example 2: Please refer to Figure 4 As shown, this embodiment also provides another limiting method:

[0040] The fixed side plate 1 and the push-pull side plate 3 are equipped with thickness adjustment rods 13 on both sides, which can be set to different adhesive layer thicknesses according to the specifications.

[0041] The thickness adjustment rod can be freely adjusted according to the adhesive layer thickness requirements of the specifications, ensuring the adhesive layer thickness of the overlapping surface of the two substrates during sample preparation. It meets the requirements of the specifications for adhesive layer thickness, and different adhesive layer thicknesses can be prepared using this thickness adjustment rod, making it widely applicable to a wide range of sample thicknesses.

[0042] In this embodiment, the thickness adjustment rod 13 adopts a threaded rod body and is threadedly connected to both the fixed side plate 1 and the push-pull side plate 3. By rotating one end, it can be moved on the fixed side plate 1 and the push-pull side plate 3, thereby controlling the distance between the fixed side plate 1 and the push-pull side plate 3.

[0043] In this embodiment, no limiter 6 is provided on the connecting rod 5 between the fixed side plate 1 and the push-pull side plate 3. Therefore, a spring 6 can be provided on the connecting rod 5, and the push-pull side plate 3 can move freely on the connecting rod 5. After the test is completed by the action of the spring 6, it will automatically reset.

[0044] It should be noted that in this embodiment, a nut 15 is also provided at the end of the connecting rod 5 that passes through the push-pull side plate 3 for limiting. The nut is to prevent the push-pull side plate 3 from slipping due to the range of the connecting rod 5 pushed out by the spring 6. At the same time, it is also to limit the push-pull side plate 3 after pushing it inward, and to cooperate with the thickness adjustment rod to hold it in place.

[0045] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An auxiliary device for testing the compressive shear strength of molded marble adhesives, characterized in that: It includes a base plate (2), a fixed side plate (1) and a push-pull side plate (3). The fixed side plate (1) is fixed to the base plate (2) by welding. The push-pull side plate (3) can be moved on the base plate (2) to control the distance between it and the fixed side plate (1). The fixed side plate (1) and the push-pull side plate (3) are provided with limiting fixing blocks (7) on their opposite side walls to clamp the test block.

2. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 1, characterized in that: The base plate (2) has a through-hole (9) for discharging adhesive.

3. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 2, characterized in that: The bottom plate (2) is provided with slide rails (10) on both sides below. The slide rails (10) and the bottom plate (2) are fixed by spot welding. The glue leakage box (11) is slidably installed on the slide rails (10) and the glue leakage box (11) is connected to the bottom of the through glue leakage opening (9).

4. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 1, characterized in that: The center of the limiting and fixing block (7) has a test block fixing rod (8) spirally attached.

5. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 1, characterized in that: A connecting rod (5) is provided on one side of the fixed side plate (1), and the push-pull side plate (3) moves freely on the base plate (2) through the connecting rod (5).

6. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 5, characterized in that: The connecting rod (5) is a screw rod, and the connecting rod (5) is fixed to the fixed side plate (1) by bolts. A nut (15) is set at the end of the connecting rod (5) that passes through the push-pull side plate (3).

7. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 6, characterized in that: A limiter (6) is screwed on the connecting rod (5) between the fixed side plate (1) and the push-pull side plate (3) to limit the movement of the push-pull side plate (3).

8. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 6, characterized in that: A scale (4) is provided on the base plate (2) along the axial direction of the connecting rod (5).

9. The auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 6, characterized in that: The push-pull side plate (3) and the fixed side plate (1) are provided with threaded holes, and a thickness adjustment rod (13) is spirally connected in the threaded holes.

10. An auxiliary device for testing the compressive shear strength of molded marble adhesive according to claim 9, characterized in that: A spring (14) is provided on the connecting rod (5) between the fixed side plate (1) and the push-pull side plate (3).

Images