Test piece compression device for testing mechanical properties of building sealant

Abstract

The utility model provides a test piece compression device for testing the mechanical property of a building sealant, which comprises two clamping plates, a plurality of compression plates, a plurality of compression plates, a plurality of compression plates, a plurality of compression plates and a plurality of compression plates, and is characterized in that a compression position for compressing the to-be-tested sealant is formed between the two clamping plates; the guide column is fixedly connected with one clamping plate, a guide hole matched with the guide column is formed in the other clamping plate, and the guide column is installed on the inner side of the guide hole; the nut is in threaded connection with the guide column; the positioning column is located between the two clamping plates, the positioning column is detachably connected with one clamping plate, the types of the positioning columns are various, and the heights of the positioning columns of different types are different. The device has the advantages that the positioning columns are arranged between the two clamping plates, it can be guaranteed that the sealant to be tested is compressed to the specified thickness every time, the accuracy of the test result is improved, the specifications of the positioning columns are various, the positioning columns with the corresponding heights are detachably connected with the clamping plates, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical performance testing of building sealants, in particular to a test piece compression device for mechanical performance testing of building sealants. Background Art

[0002] The mechanical properties of sealants are evaluated by tensile adhesion, constant elongation adhesion, constant elongation adhesion after immersion in water, elastic recovery rate and adhesion after cold drawing and hot pressing to assess the displacement grade of sealants. Therefore, the mechanical properties test of adhesion after cold drawing and hot pressing is a key indicator of sealants.

[0003] The higher the displacement level, the better the sealant performance, and the more stringent the adhesion test after cold drawing and hot pressing. During the adhesion mechanical performance test after cold drawing and hot pressing, the specimen needs to be compressed to the required test thickness on the testing machine according to the displacement level requirements. In the traditional compression test process, it is necessary to manually tighten the compression fixture screws with a wrench and repeatedly measure the compressed size with a vernier caliper.

[0004] The current device has the following problems during use: the required test amplitude is measured, and due to large measurement errors, the required compression test amplitude consistency is unstable, resulting in obvious differences in test results and low work efficiency. Utility Model Content

[0005] In view of this, the present invention aims to provide a specimen compression device for testing the mechanical properties of building sealants, in order to solve at least one of the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A test piece compression device for testing the mechanical properties of building sealants, comprising:

[0008] Clamping plates, wherein the number of the clamping plates is two, and a compression position for compressing the sealant to be tested is formed between the two clamping plates;

[0009] A guide post, the guide post being fixedly connected to one of the clamping plates, the other clamping plate being provided with a guide hole matching the guide post, the guide post being mounted inside the guide hole;

[0010] a nut, the nut being threadedly connected to the guide post;

[0011] The positioning column is located between the two clamping plates. The positioning column is detachably connected to one of the clamping plates. There are various models of positioning columns. The heights of different models of positioning columns are different and they are suitable for different compression heights.

[0012] Furthermore, the two clamping plates are respectively an upper clamping plate and a lower clamping plate;

[0013] The guide column is fixed on the upper end surface of the lower clamping plate. There are two guide columns, which are respectively located on both sides of the compression position.

[0014] A stud is provided at the upper end of the guide column, the diameter of the stud is smaller than the diameter of the guide hole, and the stud is threadedly connected to the nut.

[0015] Furthermore, two guide posts are provided on the upper and lower end surfaces of the lower clamping plate;

[0016] Positioning columns are provided on both the upper end surface and the lower end surface of the lower clamping plate, and the positioning columns on the upper end surface and the positioning columns on the lower end surface have different heights.

[0017] Furthermore, a mounting hole is formed on the positioning column, a sliding column is provided in the mounting hole, the positioning column is threadedly connected to the lower clamping plate, and a compression spring is provided between the sliding column and the lower clamping plate;

[0018] A threaded hole is formed on the lower clamping plate, an external thread is formed on the lower end of the positioning column, and the lower end of the positioning column is threadedly connected to the lower clamping plate.

[0019] Furthermore, an annular limiting boss is provided on the inner side of one end of the mounting hole adjacent to the upper clamping plate, the diameter of the sliding column matches the diameter of the mounting hole, and a support column is fixed to the top of the sliding column, the diameter of the support column matches the inner diameter of the annular limiting boss.

[0020] Furthermore, the lower clamping plate is provided with a positioning groove that matches the sealant to be tested;

[0021] A plastic film 1 is provided on the positioning groove, and a plastic film 2 corresponding to the plastic film 1 is provided on the upper clamping plate.

[0022] Furthermore, the length of the plastic film 1 is greater than the length of the positioning groove;

[0023] The width of the plastic film 1 is greater than the width of the positioning groove.

[0024] Furthermore, the nut is a butterfly nut.

[0025] Furthermore, a spring is included, which is installed on the outside of the positioning column and is located between the two clamping plates.

[0026] Furthermore, it also includes a workbench and a force boosting rod, which is connected to the output shaft of the linear motion component. The upper surface of the workbench contacts the lower surface of the lower clamping plate, and the lower surface of the force boosting rod contacts the upper surface of the upper clamping plate.

[0027] Compared with the prior art, the test piece compression device for testing the mechanical properties of building sealants described in the present invention has the following beneficial effects:

[0028] The utility model discloses a test piece compression device for testing the mechanical properties of building sealants. By arranging a positioning column between two clamping plates, it can ensure that the sealant to be tested is compressed to a specified thickness each time, thereby improving the accuracy of the test results. The positioning columns have various specifications, and the positioning columns of corresponding heights are detachably connected to the clamping plates, thereby improving the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the device according to an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the upper clamping plate according to an embodiment of the present utility model;

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower clamping plate according to an embodiment of the present utility model;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the positioning column according to an embodiment of the present utility model;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the sliding column according to an embodiment of the present utility model;

[0035] Figure 6 This is a schematic diagram of the cross-sectional structure of the device according to an embodiment of the present utility model;

[0036] Figure 7 For the embodiment of the present utility model Figure 6 Schematic diagram of the structure at point A in the middle.

[0037] Description of reference numerals:

[0038] 1. Upper clamping plate; 2. Lower clamping plate; 3. Guide column; 4. Positioning column; 5. Force-applying booster rod; 6. Workbench; 7. Sliding column; 8. Compression spring; 9. Nut; 10. Plastic film 1; 11. Plastic film 2; 101. Guide hole; 201. Positioning groove; 202. Threaded hole; 301. Stud; 401. Mounting hole; 402. Annular limit boss; 701. Support column. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0041] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0043] like Figures 1 to 7 As shown, a specimen compression device for testing the mechanical properties of building sealants comprises:

[0044] Clamping plates, there are two clamping plates, and a compression position for compressing the sealant to be tested is formed between the two clamping plates;

[0045] The guide post 3 is fixedly connected to one of the clamping plates, and a guide hole 101 matching the guide post 3 is opened on the other clamping plate, and the guide post 3 is installed inside the guide hole 101;

[0046] Nut 9, nut 9 is threadedly connected to the guide column 3;

[0047] The positioning column 4 is located between the two clamping plates. The positioning column 4 is detachably connected to one of the clamping plates. There are various models of positioning columns 4. Different models of positioning columns 4 have different heights and are suitable for different compression heights.

[0048] The two clamping plates are upper clamping plate 1 and lower clamping plate 2;

[0049] The guide column 3 is fixed on the upper end surface of the lower clamping plate 2. There are two guide columns 3, which are located on both sides of the compression position.

[0050] A stud 301 is provided at the upper end of the guide column 3 . The stud 301 protrudes from the upper end surface of the upper clamping plate 1 . The diameter of the stud 301 is smaller than the diameter of the guide hole 101 . The stud 301 is threadedly connected to the nut 9 .

[0051] Two guide posts 3 are located on the upper and lower surfaces of the lower clamping plate 2. Positioning posts 4 are located on both the upper and lower surfaces, with the upper and lower posts 4 positioned at different heights. Using the upper and lower surfaces of the clamping plate allows for testing two compression thicknesses, eliminating the need to replace the posts 4 and improving work efficiency.

[0052] In some embodiments, the positioning post 4 has a mounting hole 401, within which a sliding post 7 is positioned. The positioning post 4 is threadedly connected to the lower clamping plate 2, with a compression spring 8 interposed between the sliding post 7 and the lower clamping plate 2. The lower clamping plate 2 has a threaded hole 202, and the lower end of the positioning post 4 has external threads, threadedly connected to the lower clamping plate 2. An annular retaining boss 402 is provided on the inner side of the end of the mounting hole 401 adjacent to the upper clamping plate 1. The diameter of the sliding post 7 matches that of the mounting hole 401. A support post 701 is fixed to the top of the sliding post 7, and the diameter of the support post 701 matches the inner diameter of the annular retaining boss 402, preventing the compression spring 8 from falling off.

[0053] In other embodiments, a spring is further included. The spring is installed on the outside of the positioning column 4 and is located between the two clamping plates.

[0054] The lower clamping plate 2 is provided with a positioning groove 201 that matches the sealant to be tested; the positioning groove 201 plays a role in positioning the sealant to be tested.

[0055] Plastic film 10 is positioned over positioning groove 201, and plastic film 2 11 is positioned over upper clamping plate 1, corresponding to plastic film 10. Plastic films 10 and 11 prevent the sealant being tested from adhering to the clamping plate. Plastic film 10 is longer than positioning groove 201 and wider than positioning groove 201.

[0056] The nut 9 is a butterfly nut 9, which is easy to rotate and improves work efficiency.

[0057] It also includes a workbench 6 and a force boosting rod 5. The force boosting rod 5 is connected to the output shaft of the linear motion component. The upper surface of the workbench 6 contacts the lower surface of the lower clamping plate 2, and the lower surface of the force boosting rod 5 contacts the upper surface of the upper clamping plate 1.

[0058] Working process:

[0059] First, the thickness required for the mechanical performance test is compressed, and the positioning column 4 of the corresponding height is selected and installed on the upper end surface of the lower clamping plate 2. A plastic film 10 is placed on the positioning groove 201, and then the sealant to be tested is placed. Then, the guide hole 101 of the upper clamping plate 1 is aligned with the guide column 3 of the lower clamping plate 2 and pre-tightened with the butterfly nut 9. Then, the lower clamping plate 2 is placed on the test bench, and then the force booster rod 5 is used to move in the direction of the upper clamping plate 1. The upper clamping plate 1 pushes the sliding column 7 to move downward, and the compression spring 8 is further compressed. After the lower end surface of the upper clamping plate 1 contacts the positioning column 4, the pressure is removed, and the sealant to be tested is The sealant is compressed to a thickness that meets the experimental compression requirements, and the pressure of the contact-applying booster rod 5 is applied. Under the elastic force of the compression spring 8, the upper clamping plate 1 moves upward, making it easier to take the tested sealant. By setting a positioning column 4 between the two clamping plates, it can be ensured that the sealant to be tested is compressed to the specified thickness each time, which improves the accuracy of the test results. The positioning column 4 has a variety of specifications, and the positioning column 4 of corresponding height is detachably connected to the clamping plate, which improves the applicability of the device. The guide column 3 can place the upper clamping plate 1 and the lower clamping plate 2 to move horizontally relative to each other, thereby improving the accuracy of the test. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A specimen compression device for testing the mechanical properties of building sealants, characterized in that: include: Clamping plates, wherein the number of the clamping plates is two, and a compression position for compressing the sealant to be tested is formed between the two clamping plates; A guide post (3), wherein the guide post (3) is fixedly connected to one of the clamping plates, and a guide hole (101) matching the guide post (3) is formed on the other clamping plate, and the guide post (3) is installed inside the guide hole (101); a nut (9), wherein the nut (9) is threadedly connected to the guide post (3); A positioning column (4) is located between two clamping plates. The positioning column (4) is detachably connected to one of the clamping plates. There are multiple models of positioning columns (4). Different models of positioning columns (4) have different heights and are suitable for different compression heights.

2. The test specimen compression device for testing mechanical properties of building sealants according to claim 1, characterized in that: The two clamping plates are respectively an upper clamping plate (1) and a lower clamping plate (2); The guide column (3) is fixed on the upper end surface of the lower clamping plate (2), and there are two guide columns (3), which are respectively located on both sides of the compression position; A stud (301) is provided at the upper end of the guide column (3), the diameter of the stud (301) is smaller than the diameter of the guide hole (101), and the stud (301) is threadedly connected to the nut (9).

3. The test piece compression device for testing the mechanical properties of building sealants according to claim 2, characterized in that: Two guide columns (3) are provided on the upper end surface and the lower end surface of the lower clamping plate (2); Positioning columns (4) are provided on both the upper end surface and the lower end surface of the lower clamping plate (2), and the positioning columns (4) on the upper end surface and the positioning columns (4) on the lower end surface have different heights.

4. The test piece compression device for testing the mechanical properties of building sealants according to claim 2, characterized in that: The positioning column (4) is provided with a mounting hole (401), a sliding column (7) is provided in the mounting hole (401), the positioning column (4) is threadedly connected to the lower clamping plate (2), and a compression spring (8) is provided between the sliding column (7) and the lower clamping plate (2); A threaded hole (202) is provided on the lower clamping plate (2), an external thread is provided on the lower end of the positioning column (4), and the lower end of the positioning column (4) is threadedly connected to the lower clamping plate (2).

5. The test specimen compression device for testing mechanical properties of building sealants according to claim 4, characterized in that: An annular limiting boss (402) is provided on the inner side of one end of the mounting hole (401) adjacent to the upper clamping plate (1); the diameter of the sliding column (7) matches the diameter of the mounting hole (401); a supporting column (701) is fixed to the top of the sliding column (7); the diameter of the supporting column (701) matches the inner diameter of the annular limiting boss (402).

6. The test piece compression device for testing the mechanical properties of building sealants according to claim 2, characterized in that: The lower clamping plate (2) is provided with a positioning groove (201) that matches the sealant to be tested; A plastic film 1 (10) is provided on the positioning groove (201), and a plastic film 2 (11) corresponding to the plastic film 1 (10) is provided on the upper clamping plate (1).

7. The test specimen compression device for testing mechanical properties of building sealants according to claim 6, characterized in that: The length of the plastic film (10) is greater than the length of the positioning groove (201); The width of the plastic film (10) is greater than the width of the positioning groove (201).

8. The test piece compression device for testing mechanical properties of building sealants according to claim 1, characterized in that: The nut (9) is a butterfly nut (9).

9. The test specimen compression device for testing mechanical properties of building sealants according to claim 1, characterized in that: It also includes a spring, which is installed on the outside of the positioning column (4) and is located between the two clamping plates.

10. The test specimen compression device for testing mechanical properties of building sealants according to claim 1, characterized in that: It also includes a workbench (6) and a force-boosting rod (5), wherein the force-boosting rod (5) is connected to the output shaft of the linear motion component, the upper surface of the workbench (6) contacts the lower surface of the lower clamping plate (2), and the lower surface of the force-boosting rod (5) contacts the upper surface of the upper clamping plate (1).

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