Tension testing machine for waterproof coiled material detection

Abstract

The utility model relates to a tensile testing machine for waterproof coiled material detection. The tensile testing machine comprises a testing machine body, the movable cross beam is arranged in the test machine body; the tensile clamps are respectively arranged on the top wall in the test machine body and the upper surface of the movable cross beam; the fixed cover is arranged at one end of the fixed seat through a screw and comprises a hollow inner cylinder and a mounting groove; the limiting clamping block is arranged in the mounting groove through a screw; the two ends of the waterproof roll are arranged in the fixing bases respectively. According to the utility model, by arranging parts such as the fixed seat and the fixed cover and through the matching relationship between the fixed seat and the fixed cover, the two ends of the waterproof roll are fixed in the hollow cylinder, and the waterproof roll is uniformly extruded by the hollow inner cylinder and is in contact with the outer surface of the hollow cylinder; and therefore, the stress condition of the waterproof roll is increased, and the fixing stability of the waterproof roll is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof coiled material tension testing equipment, in particular to a tension testing machine for waterproof coiled material detection. Background Art

[0002] Waterproof membrane is a flexible building material product that can be rolled into a roll. It is mainly used in building walls, roofs, tunnels, roads, landfills, etc. to resist the seepage of external rainwater and groundwater. It is a flexible building material product that can be rolled into a roll. As a leak-free connection between the project foundation and the building, it is the first barrier to waterproofing the entire project and plays a vital role in the entire project.

[0003] Before waterproofing coiled materials are sold as commodities, their physical properties need to be tested to detect whether the commodities meet the use requirements. Tensile test is one part of the test, and a tensile testing machine is used for testing. Common tensile testing machines include an electronic tensile testing machine for waterproofing coiled materials disclosed in Chinese patent CN214309850U. When testing waterproofing coiled materials, the tensile testing machine needs to fix both ends of the waterproofing coiled materials. The common fixing method is clamping fixation (such as the above-mentioned comparative patent). This method is very convenient to use, but has the following defects:

[0004] 1. The essence of fixing by clamping is to use friction. When the friction between the clamp and the waterproof membrane is large enough, the clamp and the waterproof membrane are relatively fixed. The friction of the common clamping structure is relatively small. Therefore, the protrusion setting used in the patent increases the friction;

[0005] 2. Since the waterproof membrane itself has a certain elasticity, in order to ensure sufficient friction, it is necessary to apply a sufficiently large pressure. At this time, the surface of the waterproof membrane that is closely attached to the clamp produces a large elastic deformation, resulting in a reduction in thickness here, which is prone to fracture at the clamping point, affecting the test results;

[0006] Therefore, a tensile testing machine for waterproofing membrane testing is proposed to solve the above-mentioned problems. Utility Model Content

[0007] Based on the above description, the utility model provides a tensile testing machine for testing waterproof membranes to solve the common problems of insufficient friction at the clamping point of the testing machine and easy breakage of the waterproof membrane at the clamping point.

[0008] The technical solution of the utility model to solve the above-mentioned technical problems is as follows: A tensile testing machine for detecting waterproof coiled materials, comprising: a testing body, a movable crossbeam arranged inside the testing body, a tensile clamp respectively arranged on the top wall inside the testing body and the upper surface of the movable crossbeam, and comprising a fixed seat, a fixed cover and a limiting block, the fixed seat comprising a hollow cylinder, an opening and a cross bar, the opening being arranged on the upper and lower sides of the hollow cylinder opposite to each other, the fixing cover being arranged at one end of the fixing seat by screws, and comprising a hollow inner cylinder and a mounting groove, the mounting groove being arranged on the side of the hollow inner cylinder close to the opening, the limiting block being arranged inside the mounting groove by screws, and both ends of the waterproof coiled material being respectively arranged inside the fixing seat.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the fixing seat includes a seat body, the outer surface of the seat body is provided with a threaded blind hole, and the seat body is respectively arranged on the upper surface of the movable beam and the top wall inside the test body by screws.

[0011] Furthermore, the hollow cylinder is arranged on the opposite side of the seat body, a cross bar is arranged inside the hollow cylinder, and a section of the cross bar close to the fixing cover is a threaded section.

[0012] Furthermore, the outer surface of the hollow cylinder on one side close to the fixed cover is provided with positioning grooves, and the positioning grooves are symmetrically distributed.

[0013] Furthermore, the fixed cover includes a cover plate, which is arranged at one end of the hollow cylinder through the cooperation of screws and the threaded blind holes, the cross bar passes through the cover plate, and a nut in contact with the cover plate is arranged on the outside of the cross bar.

[0014] Furthermore, a positioning block is provided on one side of the cover plate close to the positioning groove, and the positioning block extends into the interior of the positioning groove.

[0015] Furthermore, the hollow inner cylinder is a hollow cylinder, and the diameter of the hollow inner cylinder at a side away from the cover plate is smaller than the diameter of the hollow inner cylinder at a side close to the cover plate.

[0016] Furthermore, the installation groove is a rectangular groove, and the groove width of the opposite side of the installation groove is smaller than the groove width of the opposite side thereof.

[0017] Furthermore, the limiting block includes a block body, which is arranged outside the hollow inner cylinder, and a protrusion is arranged on a side of the block close to the hollow inner cylinder, and the protrusion extends to the inside of the mounting groove, and a threaded hole is arranged on the surface of the block body.

[0018] Furthermore, the protrusion is an inverted T-shaped block, and the width of the bottom of the protrusion is greater than the width of the mounting groove on one side close to the block body.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] 1. The utility model provides a fixing seat and a fixing cover and other components, and the fixing seat and the fixing cover cooperate with each other, so that the two ends of the waterproof roll are fixed inside the hollow cylinder. At this time, the waterproof roll is evenly squeezed by the hollow inner cylinder, and the waterproof roll is in contact with the outer surface of the hollow cylinder, thereby increasing the stress of the waterproof roll to ensure the stability of the waterproof roll fixation;

[0021] 2. By setting the limiting block and the installation groove, the effect of positioning the waterproof membrane is achieved, so that when the waterproof membranes of different widths are clamped and fixed, the displacement of the waterproof membrane along the direction of the hollow tube can be avoided, so as to achieve the effect of stable fixing of the waterproof membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a tensile testing machine for waterproofing coiled material testing provided by an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the stretching clamp in the embodiment of the utility model;

[0024] Figure 3 for Figure 2 Structural cross-sectional view of

[0025] Figure 4 This is a schematic diagram of the structure of the fixing seat in the embodiment of the utility model;

[0026] Figure 5 for Figure 4 A structural diagram from another perspective;

[0027] Figure 6 This is a schematic diagram of the structure of the fixed cover in the embodiment of the utility model;

[0028] Figure 7 for Figure 6 A structural diagram from another perspective;

[0029] Figure 8 This is a schematic diagram of the structure of the limiting block in the embodiment of the utility model;

[0030] Fig. 9 for Figure 8 A structural diagram from another perspective;

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Test machine body; 2. Moving crossbeam; 3. Fixed seat; 31. Seat body; 32. Threaded blind hole; 33. Hollow tube; 34. Opening; 35. Crossbar; 36. Positioning groove; 4. Waterproof membrane; 5. Fixed cover; 51. Cover plate; 52. Hollow inner tube; 53. Positioning block; 54. Mounting groove; 6. Limiting block; 61. Block; 62. Threaded hole; 63. Protrusion. DETAILED DESCRIPTION

[0033] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0035] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0036] See also Figure 1 , a tensile testing machine for waterproofing coiled material testing, comprising:

[0037] Test body 1; and

[0038] A movable crossbeam 2, which is arranged inside the test machine body 1;

[0039] Based on the above, the test machine body 1 and the movable beam 2 are both mature existing technologies, so the specific structures and principles of the test machine body 1 and the movable beam 2 are not described in detail here, wherein the movable beam 2 can move vertically under the action of the test mechanism 1.

[0040] like Figure 2 and Figure 3 As shown, the tensile fixture is respectively arranged on the top wall inside the test body 1 and the upper surface of the movable beam 2, and includes a fixing seat 3, a fixing cover 5 and a limiting block 6;

[0041] Based on the above, the stretching clamp plays the role of fixing the two ends of the waterproof membrane 4. Through the structure of the internal fixing seat 3, the fixing cover 5 and the limiting block 6, the two ends of the waterproof membrane 4 can be subjected to less pressure when fixed while also meeting the friction requirements.

[0042] like Figure 4 and Figure 5 As shown, the fixing seat 3 includes a hollow cylinder 33, an opening 34 and a crossbar 35, wherein:

[0043] The fixing seat 3 includes a seat body 31, the outer surface of the seat body 31 is provided with a threaded blind hole 32, the seat body 31 is respectively provided on the upper surface of the movable cross beam 2 and the top wall inside the test body 1 by screws, the hollow cylinder 33 is provided on the opposite side of the seat body 31, the interior of the hollow cylinder 33 is provided with a cross bar 35, a section of the cross bar 35 close to the fixing cover 5 is a threaded section, and the outer surface of the hollow cylinder 33 close to the fixing cover 5 is provided with positioning grooves 36, and the positioning grooves 36 are symmetrically distributed;

[0044] An opening 34 is provided on opposite sides of the upper and lower hollow cylinders 33;

[0045] Based on the above, the fixed seat 3 is respectively connected to the test body 1 and the movable beam 2, so that the movable beam 2 can drive the fixed seat 3 below to move together, one end of the waterproof membrane 4 can be set inside the hollow tube 33, and the waterproof membrane 4 can extend from the opening 34, wherein the setting of the threaded blind hole 33 enables the fixed cover 5 to be fixed to one end of the hollow tube 33 by means of screws, wherein the setting of the cross bar 35, on the one hand, plays a role in supporting the fixed cover 5, and on the other hand, the nut and the threaded section cooperate with each other to make the connection between the fixed cover 5 and the fixed seat 3 tighter.

[0046] like Figure 6 and Figure 7 As shown, the fixing cover 5 is set on one end of the fixing base 3 by screws, and includes a hollow inner cylinder 52 and a mounting groove 54, wherein:

[0047] The fixing cover 5 includes a cover plate 51, which is arranged at one end of the hollow cylinder 33 by screws and the threaded blind hole 32. The cross bar 35 passes through the cover plate 51. The outside of the cross bar 35 is provided with a nut in contact with the cover plate 51. A positioning block 53 is provided on the side of the cover plate 51 close to the positioning groove 36. The positioning block 53 extends to the inside of the positioning groove 36. The hollow inner cylinder 52 is a hollow cylinder. The diameter of the hollow inner cylinder 52 away from the cover plate 51 is smaller than the diameter of the side close to the cover plate 51.

[0048] A mounting groove 54, which is disposed on a side of the hollow inner cylinder 52 close to the opening 34, the mounting groove 54 is a rectangular groove, and the groove width of the opposite side of the mounting groove 54 is smaller than the groove width of the opposite side;

[0049] Based on the above, the fixing cover 5 is fixed to one end of the fixing seat 3 by means of screws and nuts. In this process, the hollow inner cylinder 52 is inserted into the interior of the hollow cylinder 33, and the hollow inner cylinder 52 is sleeved on the exterior of the cross bar 35. At this time, the hollow inner cylinder 52 squeezes the waterproof roll 4, causing the waterproof roll 4 to undergo slight elastic deformation. At this time, the waterproof roll 4 is in contact with the outer surface of the hollow inner cylinder 52 and the inner surface of the hollow cylinder 33 at the same time. Figure 2 As shown, the waterproof membrane 4 extends out of the fixing seat 3 and then wraps around half a circle and is then connected to the fixing seat 3 at the other end. At this time, the waterproof membrane 4 and the outer surface of the hollow tube 33 are also in contact with each other. At this time, the friction between the three contact surfaces works together to fix the waterproof membrane 4. The positioning block 53 cooperates with the positioning groove 36 to limit the fixing cover 5.

[0050] like Figure 2 , Figure 3 , Figure 8 as well as Fig. 9 As shown, the limiting block 6 is set inside the installation groove 54 by screws, and the limiting block 6 includes a block 61, and the block 61 is set outside the hollow inner cylinder 52. The block 61 is provided with a protrusion 63 on the side close to the hollow inner cylinder 52, and the protrusion 63 extends to the inside of the installation groove 54. The surface of the block 61 is provided with a threaded hole 62. The protrusion 63 is an inverted T-shaped block, and the width of the bottom of the protrusion 63 is greater than the width of the side of the installation groove 54 close to the block 61;

[0051] Based on the above, the limiting block 6 plays a role in limiting the position of the waterproof membrane 4. When the tension test is performed on the waterproof membrane 4 of different widths, the limiting block 6 is slid into the interior of the installation groove 54. At this time, the screw is tightened so that the screw is tightly fitted with the inner surface of the installation groove 54. At this time, the protrusion 63 is tightly fitted with the inner surface of the installation groove 54 under the action of the interaction force to achieve the effect of fixing the position of the limiting block 6. By changing the position of the limiting block 6 inside the installation groove 54, the effect of limiting the waterproof membrane 4 of different widths can be achieved, thereby avoiding the position displacement of the waterproof membrane 4 during detection.

[0052] In actual use of this embodiment, the two ends of the waterproof roll 4 are respectively inserted into the hollow tubes 33 on the upper and lower sides. At this time, the waterproof roll 4 is placed in the state as shown in FIG. Figure 2 As shown, the fixing cover 5 is installed on one end of the fixing base 3 by means of screws and nuts;

[0053] During the above process, the hollow inner cylinder 52 extends into the interior of the hollow cylinder 33, that is, it is sleeved on the outside of the cross bar 35. When the hollow inner cylinder 52 extends, it squeezes the waterproof roll 4, causing the waterproof roll 4 to undergo elastic deformation, thereby causing friction between the waterproof roll 4 and the hollow inner cylinder 52 and the hollow cylinder 33, respectively. The friction forces at different locations cooperate with each other, so that the friction force on the waterproof roll 4 as a whole is greater, thereby achieving the effect of fixing the waterproof roll 4.

[0054] Compared with the traditional tensile testing machine, the tensile testing machine has changed the way of fixing the waterproof membrane 4. Compared with the traditional fixing method of direct clamping, the contact surface between the testing machine and the waterproof membrane 4 is larger, and the pressure applied to the waterproof membrane 4 is smaller. The pressure is applied more evenly and can be evenly distributed on the surface of both ends of the waterproof membrane 4. While the friction force meets the actual needs, it can effectively avoid the situation where the waterproof membrane 4 is easily broken due to excessive external force.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tensile testing machine for waterproofing coiled material detection, characterized in that: include: Test body (1); as well as A movable crossbeam (2) disposed inside the test machine body (1); A tensile clamp is respectively arranged on the top wall inside the test machine body (1) and the upper surface of the movable crossbeam (2), and comprises a fixed seat (3), a fixed cover (5) and a limiting block (6), wherein: The fixing seat (3) comprises a hollow cylinder (33), an opening (34) and a crossbar (35), wherein: An opening (34) is disposed on opposite sides of the upper and lower hollow cylinders (33); The fixing cover (5) is arranged on one end of the fixing seat (3) by means of screws and comprises a hollow inner cylinder (52) and a mounting groove (54), wherein: A mounting groove (54) disposed on a side of the hollow inner cylinder (52) close to the opening (34); A limiting block (6) which is arranged inside the mounting groove (54) by means of screws; The waterproof coiled material (4) has two ends respectively arranged inside the fixing seat (3).

2. The tensile testing machine according to claim 1, characterized in that: The fixed seat (3) comprises a seat body (31), the outer surface of the seat body (31) is provided with a threaded blind hole (32), and the seat body (31) is respectively arranged on the upper surface of the movable crossbeam (2) and the top wall inside the test machine body (1) by screws.

3. The tensile testing machine according to claim 2, characterized in that: The hollow cylinder (33) is arranged on the opposite side of the seat body (31), a cross bar (35) is arranged inside the hollow cylinder (33), and a section of the cross bar (35) close to the fixing cover (5) is a threaded section.

4. The tensile testing machine according to claim 3, characterized in that: The outer surface of the hollow cylinder (33) on one side close to the fixed cover (5) is provided with positioning grooves (36), and the positioning grooves (36) are symmetrically distributed.

5. The tensile testing machine according to claim 4, characterized in that: The fixing cover (5) comprises a cover plate (51), the cover plate (51) being arranged at one end of the hollow cylinder (33) by means of a screw in cooperation with the threaded blind hole (32), the cross bar (35) passing through the cover plate (51), and a nut in contact with the cover plate (51) being arranged on the outside of the cross bar (35).

6. The tensile testing machine according to claim 5, characterized in that: A positioning block (53) is provided on one side of the cover plate (51) close to the positioning groove (36), and the positioning block (53) extends into the interior of the positioning groove (36).

7. The tensile testing machine according to claim 5, characterized in that: The hollow inner cylinder (52) is a hollow cylinder, and the diameter of the side of the hollow inner cylinder (52) away from the cover plate (51) is smaller than the diameter of the side of the hollow inner cylinder (52) close to the cover plate (51).

8. The tensile testing machine according to claim 1, characterized in that: The installation groove (54) is a rectangular groove, and the groove width on the opposite side of the installation groove (54) is smaller than the groove width on the opposite side.

9. The tensile testing machine according to claim 7, characterized in that: The limiting block (6) comprises a block body (61), the block body (61) is arranged outside the hollow inner cylinder (52), a protrusion (63) is arranged on a side of the block body (61) close to the hollow inner cylinder (52), the protrusion (63) extends to the inside of the mounting groove (54), and a threaded hole (62) is arranged on the surface of the block body (61).

10. The tensile testing machine according to claim 9, characterized in that: The protrusion (63) is an inverted T-shaped block, and the width of the bottom of the protrusion (63) is greater than the width of the installation groove (54) on one side close to the block body (61).

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