Wedge-shaped clamp for gridding cloth tensile experiment

Abstract

The utility model relates to the technical field of building material quality detection equipment, in particular to a wedge-shaped clamp for a gridding cloth tensile experiment, which comprises a clamp body, a pressing plate, a first clamping block, a second clamping block, two supports, an initial clamping spring, a pull rod, a sector gear, a handle, a stop block, a first pin shaft, a second pin shaft and a connecting shaft, the sector gear pushes the pull rod with the rack edge, the first clamping block and the second clamping block to ascend, so that the initial clamping spring is compressed, and the clamping surfaces of the first clamping block and the second clamping block are separated; after the test piece is clamped, the handle is loosened, the initial clamping spring pushes the pull rod to descend, the test piece is initially clamped by means of spring force, the whole wedge-shaped clamp is installed on an experiment host through the connecting shaft, the clamp body clamps the test piece through an inclined plane and stretches the test piece at the same time, and the larger the tensile force is, the larger the clamping force is. The wedge-shaped clamp is high in operation efficiency and reliable in clamping, and does not damage a test piece.

Description

Technical Field

[0001] This utility model relates to the technical field of building material quality testing equipment, and in particular to a wedge clamp for tensile testing of mesh fabric. Background Technology

[0002] Mesh fabric is a commonly used material in construction and decoration.

[0003] The existing fixtures used for tensile testing of mesh fabrics generally employ screw clamping of the specimen.

[0004] Currently, clamping specimens requires manual tightening of the screws, which is labor-intensive and inefficient. Sometimes the clamps may come loose or the specimens may be damaged, leading to experimental failure. Therefore, the research and improvement of wedge clamps for tensile testing of mesh fabrics is of great significance. Utility Model Content

[0005] The purpose of this utility model is to provide a wedge clamp for tensile testing of mesh fabric, which aims to solve the problems of needing to manually tighten the screw when clamping the specimen, which is labor-intensive, inefficient, and sometimes the clamping may loosen or the specimen may be damaged, resulting in experimental failure.

[0006] To achieve the above objectives, this utility model provides a wedge-shaped clamp for a tensile test of mesh fabric, comprising a clamp body, a pressure plate, a first clamping block, a second clamping block, two supports, an initial clamping spring, a pull rod, a sector gear, a handle, a stop block, a first pin, a second pin, and a connecting shaft. The connecting shaft is detachably connected to the clamp body and is located above the clamp body. The pressure plate is detachably connected to the clamp body and is located on the outer wall of the clamp body. The first clamping block is slidably connected to the clamp body and is located on the inner wall of the clamp body. The second clamping block is slidably connected to the clamp body and is located on the inner wall of the clamp body, and the second clamping block is adapted to the first clamping block. Both supports are detachably connected to the clamp body and are located on one side of the clamp body. The initial clamping spring is movably connected to the connecting shaft and is located on the inner wall of the connecting shaft. The stop block is movably connected to the first clamping block and the second clamping block respectively, and is located between the first clamping block and the second clamping block. One end of the pull rod is in contact with the initial clamping spring and is located below the initial clamping spring. The other end of the pull rod is detachably connected to the stop block and is located above the stop block. The sector gear is rotatably connected to the two supports and is located between the two supports. The sector gear is threadedly engaged with the pull rod. The handle is fixedly connected to the sector gear and is located on the outer side wall of the sector gear. The first pin is fixedly connected to the first clamping block and is located on one side of the first clamping block. The second pin is fixedly connected to the second clamping block and is located on one side of the second clamping block. The clamp body has symmetrical sliding holes, and the symmetrical sliding holes are slidably engaged with the first pin and the second pin respectively.

[0007] The first clamping block has a first V-shaped groove.

[0008] The second clamping block has a second V-shaped groove, and the second V-shaped groove is adapted to the first V-shaped groove.

[0009] The connecting shaft has mounting holes.

[0010] The clamp body has a beveled edge.

[0011] The handle has rounded chamfers.

[0012] This utility model discloses a wedge clamp for a tensile test of mesh fabric. In use, the handle rotates the sector gear, which pushes the pull rod with a rack edge, as well as the first and second clamping blocks, upwards. This compresses the initial clamping spring, causing the clamping surfaces of the first and second clamping blocks to separate, allowing for specimen clamping. After the specimen is clamped, the handle is released, and the initial clamping spring pushes the pull rod downwards, initially clamping the specimen by spring force. The entire wedge clamp is mounted on the experimental host via the connecting shaft. When the experimental host performs tensile testing, the clamping body clamps the specimen through an inclined surface, simultaneously stretching the specimen. The greater the tensile force, the greater the clamping force. This wedge clamp offers high operating efficiency, reliable clamping, and does not damage the specimen. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the wedge-shaped clamp used for tensile testing of mesh fabric according to this utility model.

[0015] Figure 2 This is a rear view of the wedge-shaped clamp used for tensile testing of mesh fabric according to this utility model.

[0016] Figure 3 This is a front view of the wedge-shaped clamp for tensile testing of mesh fabric according to this utility model.

[0017] Figure 4 This is the utility model Figure 3 A sectional view along line AA.

[0018] 101-Clamping body, 102-Pressure plate, 103-First clamping block, 104-Second clamping block, 105-Support, 106-Initial clamping spring, 107-Pull rod, 108-Sector gear, 109-Handle, 110-Stop block, 111-First pin, 112-Second pin, 113-Connecting shaft, 114-First V-groove, 115-Second V-groove, 116-Mounting hole, 117-Beveled chamfer, 118-Rounded chamfer, 119-Symmetrical sliding hole. Detailed Implementation

[0019] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the wedge-shaped clamp for tensile testing of mesh fabric according to this utility model. Figure 2 This is a rear view of the wedge-shaped clamp for tensile testing of mesh fabric according to this utility model. Figure 3 This is a front view of the wedge-shaped clamp for tensile testing of mesh fabric according to this utility model. Figure 4This is the utility model Figure 3 A sectional view along line AA.

[0020] This utility model provides a wedge clamp for a mesh fabric tensile test, including a clamp body 101, a pressure plate 102, a first clamping block 103, a second clamping block 104, two supports 105, an initial clamping spring 106, a pull rod 107, a sector gear 108, a handle 109, a stop block 110, a first pin 111, a second pin 112, and a connecting shaft 113. The first clamping block 103 has a first V-groove 114, the second clamping block 104 has a second V-groove 115, the connecting shaft 113 has a mounting hole 116, the clamp body 101 has a chamfered edge 117, the handle 109 has a rounded chamfer 118, and the clamp body 101 has symmetrical sliding holes 119.

[0021] The connecting shaft 113 is detachably connected to the clamping body 101 and is located above the clamping body 101. The pressure plate 102 is detachably connected to the clamping body 101 and is located on the outer wall of the clamping body 101. The first clamping block 103 is slidably connected to the clamping body 101 and is located on the inner wall of the clamping body 101. The second clamping block 104 is slidably connected to the clamping body 101 and is located on the inner wall of the clamping body 101, and the second clamping block 104 is adapted to the first clamping block 103. Both supports 105 are detachably connected to the clamping body 101 and are located on one side of the clamping body 101. The initial clamping spring 106 is movably connected to the connecting shaft 113 and is located on the inner wall of the connecting shaft 113. The stop block 110 is movably connected to the first clamping block 103 and the second clamping block 104 respectively and is located between the first clamping block 103 and the second clamping block 104. One end of the pull rod 107 contacts the initial clamping spring 106 and is located below the initial clamping spring 106. The other end of the pull rod 107 is detachably connected to the stop block 110 and is located above the stop block 110. The sector gear 108 is rotatably connected to the two supports 105 and is located between the two supports 105. The sector gear 108 is threadedly engaged with the pull rod 107. The handle 109 is fixedly connected to the sector gear 108 and is located on the outer side wall of the sector gear 108. The first pin 111 is fixedly connected to the first clamping block 103 and is located on one side of the first clamping block 103. The second pin 112 is fixedly connected to the second clamping block 104 and is located on one side of the second clamping block 104. The clamping body 101 has symmetrical sliding holes 119, which are slidably engaged with the first pin 111 and the second pin 112, respectively.

[0022] In this embodiment, during use, the handle 109 rotates the sector gear 108, which pushes the pull rod 107 with rack edge, as well as the first clamping block 103 and the second clamping block 104, to rise, causing the initial clamping spring 106 to be compressed. The clamping surfaces of the first clamping block 103 and the second clamping block 104 separate, allowing the specimen to be clamped. After the specimen is clamped, the handle 109 is released, and the initial clamping spring 106 pushes the pull rod 107 to descend, initially clamping the specimen by spring force. The entire wedge clamp is mounted on the experimental host using the connecting shaft 113. When the experimental host is stretched, the clamping body 101 clamps the specimen through the inclined surface, simultaneously stretching the specimen. Moreover, the greater the tension, the greater the clamping force. This wedge clamp has high operating efficiency, reliable clamping, and does not damage the specimen.

[0023] Furthermore, the first clamping block 103 has a first V-groove 114.

[0024] In this embodiment, the first V-groove 114 is used to assist the second clamping block 104 in clamping the specimen.

[0025] Furthermore, the second clamping block 104 has a second V-groove 115, and the second V-groove 115 is adapted to the first V-groove 114.

[0026] In this embodiment, the first V-groove 114 and the second V-groove 115 are interlocked, and their wedge-shaped pressing action increases the pressure and friction between the first clamping block 103, the second clamping block 104 and the specimen.

[0027] Furthermore, the connecting shaft 113 has a mounting hole 116.

[0028] In this embodiment, the mounting hole 116 is used to fix the experimental host, which facilitates operation and use by the staff.

[0029] Furthermore, the clamp body 101 has a chamfered edge 117.

[0030] In this embodiment, the chamfer 117 can improve the safety and aesthetics of the product, as well as enhance structural strength, facilitate operation, prevent damage, and make cleaning easier.

[0031] Furthermore, the handle 109 has a rounded chamfer 118.

[0032] In this embodiment, the rounded chamfer 118 facilitates the use of the handle 109 by the staff and avoids injury to the staff from sharp edges.

[0033] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A wedge-shaped clamp for tensile testing of mesh fabric, characterized in that, The clamping device includes a clamping body, a pressure plate, a first clamping block, a second clamping block, two supports, an initial clamping spring, a pull rod, a sector gear, a handle, a stop block, a first pin, a second pin, and a connecting shaft. The connecting shaft is detachably connected to the clamping body and located above it. The pressure plate is detachably connected to the clamping body and located on its outer side wall. The first clamping block is slidably connected to the clamping body and located on its inner side wall. The second clamping block is slidably connected to the clamping body and located on its inner side wall, and is adapted to the first clamping block. Both supports are detachably connected to the clamping body and located on one side of it. The initial clamping spring is movably connected to the connecting shaft and located on its inner side wall. The stop block is connected to the first clamping block and the second pin. The second clamping block is movably connected and located between the first clamping block and the second clamping block. One end of the pull rod contacts the initial clamping spring and is located below the initial clamping spring. The other end of the pull rod is detachably connected to the stop block and is located above the stop block. The sector gear is rotatably connected to the two supports and is located between the two supports. The sector gear is threadedly engaged with the pull rod. The handle is fixedly connected to the sector gear and is located on the outer side wall of the sector gear. The first pin is fixedly connected to the first clamping block and is located on one side of the first clamping block. The second pin is fixedly connected to the second clamping block and is located on one side of the second clamping block. The clamping body has symmetrical sliding holes, which are slidably engaged with the first pin and the second pin, respectively.

2. The wedge clamp for tensile testing of mesh fabric as described in claim 1, characterized in that, The first clamping block has a first V-shaped groove.

3. The wedge clamp for tensile testing of mesh fabric as described in claim 2, characterized in that, The second clamping block has a second V-shaped groove, and the second V-shaped groove is adapted to the first V-shaped groove.

4. The wedge clamp for tensile testing of mesh fabric as described in claim 3, characterized in that, The connecting shaft has mounting holes.

5. The wedge clamp for tensile testing of mesh fabric as described in claim 4, characterized in that, The clamp has a beveled edge.

6. The wedge clamp for tensile testing of mesh fabric as described in claim 5, characterized in that, The handle has rounded chamfers.

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