Preparation device of sealant tensile shear sample
By using groove structure and bolt connection in the sealant tensile shear sample preparation device, the problem of inaccurate control of sealant layer thickness is solved, and the accuracy and applicability of the test results are achieved.
Patent Information
- Application Number
- CN202421347849.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-06-13
AI Technical Summary
In the prior art, when preparing sealant tensile shear samples, it is difficult to accurately control the thickness of the sealant layer, resulting in inaccurate test results.
A sealant tensile shear sample preparation device is designed. By setting a groove structure and a detachable pad, positioning plate and pressing plate on the bottom plate, ensuring that the thickness of the sealant layer is consistent with the design value, and using bolt connections to achieve accurate pressing.
It realizes accurate control of the thickness of the sealant layer to ensure the accuracy and consistency of the test results, and is suitable for sample preparation with different thickness requirements.
Smart Images
Figure CN223122623U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sealant specimens, and particularly relates to a preparation device for a tensile shear specimen of a sealant. Background Art
[0002] Currently, when testing the tensile shear performance of a sealant, specimens need to be prepared. The specimens in the prior art usually include two rectangular base plates with the same width. The two base plates are bonded together by a sealant. Specifically, when preparing the specimens, first, the uncured sealant is coated on one of the base plates to form a sealant layer. The sealant layer has a certain length and the same width as the base plate, and one end of the sealant layer is flush with the base plate. Then, the two base plates are aligned according to the length of the sealant layer and manually pressed together until the thickness of the sealant layer is pressed to the designed value. In this way, after the sealant layer is cured, the specimen can be formed. Then, the specimen is stretched along the length direction of the specimen, and the tensile shear strength and bonding performance of the sealant can be tested.
[0003] However, with the above preparation method, when manually pressing the two base plates together, it is difficult to control whether the thickness of the sealant layer in the specimen has been pressed to the designed value. Sometimes, there will be a deviation between the thickness of the sealant layer and the designed value, which will affect the test results. Therefore, there are still drawbacks and deficiencies in the prior art. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a preparation device for a tensile shear specimen of a sealant to solve the problems raised in the above background art.
[0005] The technical solution adopted by the utility model to solve the above problems:
[0006] A preparation device for a tensile shear specimen of a sealant includes a first base plate and a second base plate, both of which are rectangular. The first base plate and the second base plate have the same width, and a sealant layer with the same width as the first base plate is bonded to the first base plate. One end of the sealant layer is flush with the first base plate. It further includes a horizontally arranged bottom plate. A groove structure is vertically opened on one side of the top surface of the bottom plate, and a horizontally arranged fixing plate integrally formed with the bottom plate is fixedly connected to the other side of the top surface of the bottom plate. A first groove for placing the first base plate is vertically opened on the top surface of the fixing plate. The first groove horizontally penetrates the fixing plate, and the bottom surface of the first groove is flush with the top surface of the bottom plate. A horizontally arranged cushion plate and a positioning plate are detachably connected in sequence from bottom to top in the groove structure. A second groove for placing the second base plate is vertically opened on the top surface of the positioning plate. The second groove horizontally penetrates the positioning plate, and the second groove is opposite to the first groove in position. When the cushion plate is not arranged in the groove structure, the bottom surface of the second groove is flush with the bottom surface of the first groove;
[0007] The thickness of the first base plate is t1, the thickness of the sealant layer is t2, and the thickness of the backing plate is t3, where t3 = t1 + t2; the depth of the second groove is less than the thickness of the second base plate. A pressing plate horizontally distributed is further provided on the positioning plate. The pressing plate and the positioning plate are connected by a vertically distributed first connecting bolt, and one side of the pressing plate close to the fixing plate is located outside the positioning plate.
[0008] Furthermore, the number of the backing plates is multiple, and the thickness of each backing plate is different.
[0009] Furthermore, a layer of detachable glass bead layer or tape layer is laid on the bottom surface of the groove structure.
[0010] Furthermore, the number of the first grooves is multiple, and the multiple first grooves are arranged side by side at equal intervals. The number of the second grooves is equal to the number of the first grooves, and the positions of the second grooves respectively correspond to the first grooves one by one.
[0011] Furthermore, the positioning plate, the backing plate and the bottom plate are connected by vertically distributed second connecting bolts.
[0012] Furthermore, the groove structure horizontally penetrates through the bottom plate and is arranged parallel to the fixing plate. The shapes of the backing plate and the positioning plate are both adapted to the groove structure.
[0013] Furthermore, Teflon coating layers are coated on the outer surfaces of the bottom plate, the fixing plate, the positioning plate and the pressing plate.
[0014] Furthermore, the backing plate is an aluminum alloy plate or a stainless steel plate.
[0015] Adopting the above technical solution, the beneficial effects of the utility model are as follows:
[0016] When the utility model is in use, first, according to the thickness of the sealant layer design value and the thickness of the first base plate, a spacer plate with a suitable thickness is set, and then the spacer plate and the positioning plate are horizontally placed into the groove structure in sequence for fixation; then the first base plate coated with the sealant layer is horizontally placed into the first groove. At this time, the sealant layer faces upward; then the second base plate is horizontally placed into the second groove, and according to the length of the sealant layer, the first base plate and the second base plate are aligned, and then the pressure plate is installed, and the pressure plate and the positioning plate are connected by using the first connecting bolt. At this time, the pressure plate can press the first base plate and the second base plate. Since the bottom surface of the second groove is flush with the bottom surface of the first groove when no spacer plate is provided in the groove structure, and the thickness of the spacer plate is equal to the sum of the thickness of the first base plate and the thickness of the sealant layer design value, when pressing the first base plate and the second base plate, compared with the manual pressing method in the prior art, it can ensure that the thickness of the sealant layer in the specimen is consistent with the design value, and the thickness of the sealant layer can be made uniform to avoid affecting the test results. Brief Description of the Drawings
[0017] Figure 1 is a schematic structural view of the utility model;
[0018] Figure 2 is Figure 1 a schematic structural view of some devices in
[0019] Figure 3 is one of the schematic structural views of some devices of the utility model;
[0020] Figure 4 is the second of the schematic structural views of some devices of the utility model.
[0021] Reference numerals: 1, pressure plate; 2, positioning plate; 21, second groove; 3, spacer plate; 4, bottom plate; 41, groove structure; 5, fixing plate; 51, first groove; 6, first connecting bolt; 7, first base plate; 8, sealant layer; 9, marking line; 10, marking tape; 11, second base plate; 12, second connecting bolt. Detailed Embodiment
[0022] To make the purpose, technical solution and beneficial effects of the utility model clearer, the following further describes the embodiments of the utility model in detail with reference to the drawings.
[0023] As Figures 1 to 4As shown in the figure, the utility model provides a preparation device for a tensile shear specimen of sealant, which includes a first base plate 7 and a second base plate 11 both in rectangular shape. The first base plate 7 and the second base plate 11 have the same width, and a sealant layer 8 with the same width as the first base plate 7 is bonded on the first base plate 7. One end of the sealant layer 8 is flush with the first base plate 7. Specifically, the first base plate 7, the second base plate 11 and the sealant layer 8 can form a specimen in the prior art, and the materials of the first base plate 7 and the second base plate 11 can be different; it also includes a horizontally arranged bottom plate 4. A groove structure 41 is vertically opened on one side of the top surface of the bottom plate 4, and a horizontally arranged fixing plate 5 integrally structured with the bottom plate 4 is fixedly connected to the other side of the top surface of the bottom plate 4. A first groove 51 for placing the first base plate 7 is vertically opened on the top surface of the fixing plate 5. The first groove 51 horizontally penetrates through the fixing plate 5, and the bottom surface of the first groove 51 is flush with the top surface of the bottom plate 4. In addition, the distance between the two groove walls of the first groove 51 is adapted to the plate width of the first base plate 7. In this way, when the first base plate 7 is placed in the first groove 51, the width direction of the first base plate 7 can be limited; a horizontally arranged cushion plate 3 and a positioning plate 2 are detachably connected in sequence from bottom to top in the groove structure 41. A second groove 21 for placing the second base plate 11 is vertically opened on the top surface of the positioning plate 2. The second groove 21 horizontally penetrates through the positioning plate 2, and the second groove 21 is opposite to the position of the first groove 51. When the cushion plate 3 is not arranged in the groove structure 41, the bottom surface of the second groove 21 is flush with the bottom surface of the first groove 51. In addition, the distance between the two groove walls of the second groove 21 is adapted to the plate width of the second base plate 11. In this way, when the second base plate 11 is placed in the second groove 21, the width direction of the second base plate 11 can be limited.
[0024] Specifically, during use, first, according to the thickness of the design value of the sealant layer 8 and the thickness of the first base plate 7, a cushion plate 3 with a suitable thickness is set. The specific setting method of the cushion plate 3 is as follows: the thickness of the first base plate 7 is t1, the thickness of the design value of the sealant layer 8 is t2, and the thickness of the cushion plate 3 is t3, t3 = t1 + t2; in addition, the groove depth of the second groove 21 is less than the thickness of the second base plate 11. A horizontally distributed pressing plate 1 is also arranged on the positioning plate 2. The pressing plate 1 is a plate-like structure with a certain thickness to ensure that the pressing plate 1 will not be bent during use; the pressing plate 1 and the positioning plate 2 are connected by a vertically distributed first connecting bolt 6, and the side of the pressing plate 1 close to the fixing plate 5 is located outside the positioning plate 2. Specifically, multiple first connecting bolts 6 can be set. When the pressing plate 1 is connected to the positioning plate 2, the screw end of the first connecting bolt 6 passes through the pressing plate 1 and is threadedly connected to the positioning plate 2, and the head of the first connecting bolt 6 abuts against the pressing plate 1.
[0025] In use, after setting the backing plate 3 with a suitable thickness, the backing plate 3 and the positioning plate 2 are horizontally placed into the groove structure 41 in sequence for fixation; then the first base plate 7 coated with the sealant layer 8 is horizontally placed into the first groove 51, at this time, the sealant layer 8 faces upward; then the second base plate 11 is horizontally placed into the second groove 21, and according to the length of the sealant layer 8, the first base plate 7 and the second base plate 11 are aligned, then the pressing plate 1 is installed, and the pressing plate 1 and the positioning plate 2 are connected by using the first connecting bolt 6. Since the depth of the second groove 21 is less than the thickness of the second base plate 11, at this time, the pressing plate 1 can press the first base plate 7 and the second base plate 11. And when the backing plate 3 is not set in the groove structure 41, the bottom surface of the second groove 21 is flush with the bottom surface of the first groove 51, and the thickness of the backing plate 3 is equal to the sum of the thickness of the first base plate 7 and the designed thickness of the sealant layer 8. Thus, when pressing the first base plate 7 and the second base plate 11, compared with the manual pressing method in the prior art, it can ensure that the thickness of the sealant layer 8 in the specimen is consistent with the designed value, and the thickness of the sealant layer 8 can be made uniform to avoid affecting the test results; finally, after the sealant layer 8 is cured, the pressing plate 1 is removed, and the fabricated specimen can be taken out.
[0026] Further, for facilitating the alignment between the first base plate 7 and the second base plate 11, in use, it can be as Figure 3 shown. According to the length of the sealant layer 8, marking lines 9 are arranged on the sides of both the first base plate 7 and the second base plate 11. In this way, in use, the first base plate 7 and the second base plate 11 can be aligned by using the marking lines 9; or it can be as Figure 4 shown. According to the length of the sealant layer 8, a marking tape 10 is arranged on the first base plate 7 coated with the sealant layer 8. In this way, in use, the first base plate 7 and the second base plate 11 can be aligned by using the edge of the marking tape 10, thereby facilitating the alignment between the first base plate 7 and the second base plate 11.
[0027] Further, the number of the backing plates 3 can be set to be multiple, and the thickness of each backing plate 3 is different. In this way, when preparing the specimen, a backing plate 3 with a suitable thickness can be selected according to the designed thickness of the sealant layer 8 and the thickness of the first base plate 7. Thus, when preparing specimens with different thicknesses of the sealant layer 8 and when preparing specimens with different thicknesses of the first base plate 7 and the second base plate 11, it can also meet the preparation of the specimens, that is, it can meet the preparation of specimens with different design requirements, and has strong applicability.
[0028] Furthermore, a detachable glass bead layer or tape layer is laid on the bottom surface of the groove structure 41. Specifically, during the actual preparation of the specimen, when 0 < t1 + t2 - t3 < 0.5 mm, a glass bead layer or tape layer with an appropriate thickness can be laid on the bottom surface of the groove structure 41 for adjustment to reduce the deviation between the thickness of the sealant layer 8 in the specimen and the design value; when t1 + t2 - t3 > 0.5 mm, a backing plate 3 with an appropriate thickness needs to be selected again.
[0029] Furthermore, the number of the first grooves 51 is multiple, and the multiple first grooves 51 are arranged side by side at equal intervals. The number of the second grooves 21 is equal to the number of the first grooves 51, and the positions of the second grooves 21 correspond to those of the first grooves 51 one by one. In this way, when in use, multiple specimens can be prepared simultaneously, thereby improving the preparation efficiency of the specimens.
[0030] The specific way of detachably connecting the backing plate 3 and the positioning plate 2 in the groove structure 41 from bottom to top is as follows: As Figure 1 shown, the positioning plate 2, the backing plate 3 and the bottom plate 4 are connected by second connecting bolts 12 vertically distributed. Specifically, multiple second connecting bolts 12 can be provided. When connecting the positioning plate 2, the backing plate 3 and the bottom plate 4, the screw end of the second connecting bolt 12 passes through the positioning plate 2 and the backing plate 3 in sequence and then is threadedly connected to the bottom plate 4, and the head of the second connecting bolt 12 abuts against the positioning plate 2.
[0031] Furthermore, as Figure 1 and Figure 2 shown, the groove structure 41 horizontally penetrates the bottom plate 4 and is parallel to the fixing plate 5. The shapes of the backing plate 3 and the positioning plate 2 are both adapted to the groove structure 41. In this way, when in use, it is convenient to disassemble and assemble the backing plate 3 and the positioning plate 2 in the groove structure 41.
[0032] Furthermore, Teflon coating layers are coated on the outer surfaces of the bottom plate 4, the fixing plate 5, the positioning plate 2 and the pressing plate 1. In this way, when in use, it is convenient for reuse and specimen demolding.
[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.
Claims
1. A preparation device for a tensile shear specimen of a sealant, comprising a first base plate and a second base plate both in a rectangular shape. The first base plate and the second base plate have the same width, and a sealant layer having the same width as the first base plate is bonded to the first base plate. One end of the sealant layer is flush with the first base plate. It is characterized in that: It further includes a horizontally arranged bottom plate. On one side of the top surface of the bottom plate, a groove structure is vertically formed. On the other side of the top surface of the bottom plate, a horizontally arranged fixing plate integrally structured with the bottom plate is fixedly connected. On the top surface of the fixing plate, a first groove for placing a first base plate is vertically formed. The first groove horizontally penetrates through the fixing plate, and the bottom surface of the first groove is flush with the top surface of the bottom plate. In the groove structure, a horizontally arranged cushion plate and a positioning plate are detachably connected in sequence from bottom to top. On the top surface of the positioning plate, a second groove for placing a second base plate is vertically formed. The second groove horizontally penetrates through the positioning plate, and the position of the second groove is opposite to that of the first groove. When no cushion plate is arranged in the groove structure, the bottom surface of the second groove is flush with the bottom surface of the first groove; The thickness of the first base plate is t1, the thickness of the sealant layer is t2, and the thickness of the cushion plate is t3, where t3 = t1 + t2; the depth of the second groove is less than the thickness of the second base plate. Horizontally distributed pressing plates are further arranged on the positioning plate. The pressing plates and the positioning plate are connected by vertically distributed first connecting bolts, and one side of the pressing plate close to the fixing plate is located outside the positioning plate.
2. The preparation device of a sealant tensile-shear specimen according to claim 1, characterized in that: The number of the cushion plates is multiple, and the thickness of each cushion plate is different.
3. The preparation device for a sealant tensile shear specimen according to claim 1, characterized in that: A detachable glass bead layer or tape layer is laid on the bottom surface of the groove structure.
4. The preparation device for a tensile shear specimen of sealant according to claim 1, characterized in that: The number of the first grooves is multiple, and the multiple first grooves are arranged side by side at equal intervals. The number of the second grooves is equal to that of the first grooves, and the positions of the second grooves respectively correspond to those of the first grooves one by one.
5. The preparation device of a sealant tensile-shear specimen according to claim 1, characterized in that: The positioning plate, the cushion plate and the bottom plate are connected by vertically distributed second connecting bolts.
6. The preparation device of a sealant tensile shear specimen according to claim 1, characterized in that: The groove structure horizontally penetrates through the bottom plate and is arranged parallel to the fixing plate. The shapes of the cushion plate and the positioning plate are both adapted to the groove structure.
7. The preparation device for a tensile shear specimen of sealant according to claim 1, characterized in that: Teflon coating layers are coated on the outer surfaces of the bottom plate, the fixing plate, the positioning plate and the pressing plate.
8. The preparation device for a tensile shear specimen of a sealant according to claim 1, characterized in that: The cushion plate is an aluminum alloy plate or a stainless steel plate.