A cable tensile testing device

Abstract

This utility model relates to the field of cable tensile strength testing technology and discloses a cable tensile strength testing device, including a base plate. A rectangular block is fixedly connected to one side of the top of the base plate, and a fixing plate is fixedly connected to the other side of the base plate. The rectangular block and the fixing plate are connected by a tension member. A tensile detector is fixedly connected to the top of the rectangular block. Two movable blocks are provided on one side of the tensile detector, one of which is fixedly connected to the tensile detector. A cable body is provided on the top of the two movable blocks. Each movable block is provided with a winding mechanism to fix both ends of the cable body. A protective mechanism to improve safety performance is provided on the top side of the base plate. The device can fix both ends of the cable without damaging the overall stress of the cable, thereby improving the accuracy of the cable tensile strength test data and improving its practicality.

Description

Technical Field

[0001] This utility model relates to the field of cable tensile testing technology, specifically a cable tensile testing device. Background Technology

[0002] Cables are conductive bundles consisting of one or more insulated conductors, typically encased in a layer of insulating material. They are used to transmit electricity or signals, and common applications include power transmission, electrical equipment connections, and communication systems. The tensile strength of a cable is one of its core mechanical properties, directly determining its reliability, safety, and service life during installation, operation, and under special working conditions. Therefore, after cables are manufactured, their tensile strength is often tested.

[0003] However, existing cable tensile testing devices typically use clamping to fix both ends of the cable. Since the local pressure at the clamped part of the cable is much higher than the average force on the cable, a serious stress concentration effect is formed, resulting in uneven tensile force transmission, which leads to uncontrolled fracture location and affects the accuracy of cable tensile strength test data. Utility Model Content

[0004] This invention provides a cable tensile strength testing device, which not only improves the accuracy of cable tensile strength testing, but also protects users by preventing cable breakage and subsequent impact on operators, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a cable tensile testing device, including a base plate, a rectangular block fixedly connected to one side of the top of the base plate, a fixed plate fixedly connected to the other side of the base plate, the rectangular block and the fixed plate being connected by a tension member, a tensile detector fixedly connected to the top of the rectangular block, two movable blocks arranged on one side of the tensile detector, one of the movable blocks being fixedly connected to the tensile detector, a cable body arranged on the top of the two movable blocks, and a winding mechanism for fixing both ends of the cable body arranged on the top of each movable block, and a protective mechanism for improving safety performance arranged on the top side of the base plate.

[0006] Preferably, the winding mechanism includes two winding posts respectively disposed on the top of the moving block. A rotating handle is fixedly connected to one side of each of the two winding posts. A rubber block is fixedly connected inside each winding post. Both ends of the cable body are respectively embedded in the rubber block. A first rotating shaft is fixedly connected to the bottom of each winding post. The first rotating shaft is rotatably connected to the moving block. A ratchet is fixedly connected to the outer surface of the bottom end of each first rotating shaft. An elastic element is provided on one side of each ratchet.

[0007] Preferably, the elastic element includes ratchet teeth that mesh with the ratchet wheel, a second rotating shaft is rotatably connected inside the ratchet teeth, the second rotating shaft is fixedly connected to the moving block, a sliding block is fixedly connected to the top of each ratchet tooth, a stroke groove is provided on each moving block near the sliding block, and a spring is provided on the side of each ratchet tooth away from the ratchet wheel.

[0008] Preferably, the protective mechanism includes two fixed blocks fixedly mounted on the base plate, and an acrylic protective cover is rotatably connected between the two fixed blocks. The bottom side of the acrylic protective cover is connected to the base plate by a fastener.

[0009] Preferably, the fixing component includes three strong magnets embedded inside the acrylic protective cover, and an adsorption plate is fixedly connected to the base plate near the strong magnets, and the strong magnets are attracted to the adsorption plate.

[0010] Preferably, the tensioning member includes two slide rods fixedly installed between the rectangular block and the fixed plate. The movable blocks are slidably connected to the slide rods. One of the movable blocks is internally threaded with a screw. One end of the screw is rotatably connected to a mounting block, which is fixedly connected to the base plate. The other end of the screw is equipped with a motor, which is fixedly connected to the fixed plate.

[0011] This utility model has the following beneficial effects:

[0012] 1. Through the combined action of the base plate, rectangular block, fixed plate, tensioning component, tensile tester, moving block, cable body, and winding mechanism, both ends of the cable can be fixed without damaging the overall stress of the cable, thus improving the accuracy of the cable tensile strength test data and improving its practicality.

[0013] 2. Through the combined action of the base plate, rectangular block, fixed plate, tension component, tensile tester, moving block, cable body, and protective mechanism, the operator can be protected during the tensile strength test of the cable. This avoids the problem of the cable breaking instantly after reaching its yield strength and rebounding and splashing, which could hit the operator, thus improving the safety of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the tensioning component structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the winding mechanism of this utility model.

[0017] Figure 4 For the present utility model Figure 3Enlarged structural diagram at point A in the middle.

[0018] Figure 5 This is a schematic diagram of the protective mechanism structure of this utility model.

[0019] In the diagram: 1. Base plate; 2. Rectangular block; 3. Fixing plate; 4. Tensioning component; 41. Slide rod; 42. Screw; 43. Mounting block; 44. Motor; 5. Tension detector; 6. Moving block; 7. Cable body; 8. Winding mechanism; 81. Winding column; 82. Rotating handle; 83. Rubber block; 84. First rotating shaft; 85. Ratchet; 86. Elastic component; 861. Ratchet tooth; 862. Second rotating shaft; 863. Sliding block; 864. Spring; 9. Protective mechanism; 91. Fixing block; 92. Acrylic protective cover; 93. Fixing component; 931. Strong magnet; 932. Adsorption plate. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] This embodiment aims to facilitate a solution to the problem of how to improve the accuracy of cable tensile strength test data. Please refer to [link / reference needed]. Figures 1-4 A cable tensile testing device includes a base plate 1. A rectangular block 2 is fixedly connected to one side of the top of the base plate 1, and a fixing plate 3 is fixedly connected to the other side of the base plate 1. The rectangular block 2 and the fixing plate 3 are connected by a tension member 4. A tensile detector 5 is fixedly connected to the top of the rectangular block 2. The tensile detector 5 can detect the tensile strength of the cable when stretched. Two movable blocks 6 are provided on one side of the tensile detector 5, one of which is fixedly connected to the tensile detector 5. A cable body 7 is provided on the top of the two movable blocks 6. A winding mechanism 8 is provided on the top of each movable block 6 to fix the two ends of the cable body 7. The winding mechanism 8 can fix the two ends of the cable body 7. A protective mechanism 9 is provided on the top side of the base plate 1 to improve safety performance. The protective mechanism 9 can block the rebounding and splashing cable during the tensile strength test of the cable body 7 to prevent it from hitting the operator.

[0023] The winding mechanism 8 includes two winding posts 81 respectively disposed on the top of the moving block 6. The surface of the winding posts 81 is roughened. A rotating handle 82 is fixedly connected to one side of each of the two winding posts 81, so that the operator can control the winding posts 81 to rotate by rotating the handle 82. A rubber block 83 is fixedly connected inside each winding post 81. Both ends of the cable body 7 are respectively embedded in the rubber block 83. The rubber block 83 has a certain friction force on the cable body 7. A first rotating shaft 84 is fixedly connected to the bottom of each winding post 81. The first rotating shaft 84 is rotatably connected to the moving block 6. A ratchet 85 is fixedly connected to the outer surface of the bottom end of the first rotating shaft 84. An elastic element 86 is provided on one side of each ratchet 85. The elastic element 86 can control the winding post 81 to rotate only in one direction.

[0024] The elastic component 86 includes a ratchet 861 that meshes with a ratchet 85. A second rotating shaft 862 is rotatably connected inside the ratchet 861. The second rotating shaft 862 is fixedly connected to the moving block 6. A sliding block 863 is fixedly connected to the top of the ratchet 861. The sliding block 863 can be manually slid, and the sliding block 863 drives the ratchet 861 to rotate around the second rotating shaft 862 as the center, thereby causing the ratchet 861 to separate from the ratchet 85. The moving block 6 has a stroke groove near the sliding block 863, which provides a suitable sliding stroke for the sliding block 863. A spring 864 is provided on the side of the ratchet 861 away from the ratchet 85, which can apply a certain pushing force to the ratchet 861, so that the ratchet 861 and the ratchet 85 always remain in a meshing state.

[0025] In this embodiment: the operator inserts both ends of the cable body 7 into the rubber block 83 respectively, and then rotates the winding post 81 by rotating the handle 82. While the winding post 81 rotates, it wraps part of the cable body 7 around the surface. At the same time, the winding post 81 rotates and drives the ratchet 85 through the first rotating shaft 84. The cooperation between the ratchet 85 and the ratchet tooth 861 makes the winding post 81 rotate only in one direction, avoiding the surface of the winding wheel being too rough. While stretching the cable body 7, the pressure between the cable body 7 and the winding wheel continuously increases, and the friction also continuously increases, thereby fixing both sides of the cable body 7.

[0026] Example 2

[0027] This embodiment aims to facilitate a solution to the problem of preventing injury to operators from rebounding debris when a cable breaks. This embodiment is an improvement upon Embodiment 1. For details, please refer to [link to Embodiment 1]. Figures 1-5The protective mechanism 9 includes two fixing blocks 91 fixedly mounted on the base plate 1. An acrylic protective cover 92 is rotatably connected between the two fixing blocks 91. A control box is installed on the top side of the acrylic protective cover 92. The acrylic protective cover 92 is a transparent plastic cover, which makes it convenient for operators to observe the changes in the cable body 7 when performing tensile strength tests on the cable body 7. The bottom side of the acrylic protective cover 92 is connected to the base plate 1 through a fastener 93. The fastener 93 can control the closure between the acrylic protective cover 92 and the base plate 1.

[0028] The fastener 93 includes three strong magnets 931 embedded inside the acrylic protective cover 92. An adsorption plate 932 is fixedly connected to the base plate 1 near the strong magnets 931. The strong magnets 931 and the adsorption plate 932 are attracted to each other. When the acrylic protective cover 92 is closed, the strong magnets 931 and the adsorption plate 932 are attracted to each other, thereby achieving the purpose of closing the acrylic protective cover 92.

[0029] The tensioning component 4 includes two slide rods 41 fixedly installed between the rectangular block 2 and the fixed plate 3. The moving blocks 6 are slidably connected to the slide rods 41, which can control the moving blocks 6 to slide horizontally. One of the moving blocks 6 is internally threaded with a screw 42. One end of the screw 42 is rotatably connected to a mounting block 43. The mounting block 43 is fixedly connected to the base plate 1. The other end of the screw 42 is equipped with a motor 44. The motor 44 is fixedly connected to the fixed plate 3.

[0030] In this embodiment: After the operator fixes the cable body 7, the acrylic protective cover 92 is rotated with the fixing block 91 as the center, so that the strong magnet 931 on the acrylic protective cover 92 and the adsorption plate 932 inside the base plate 1 are attracted to each other. Then the motor 44 is driven, and the output end of the motor 44 drives the screw 42 to rotate. While the screw 42 is rotating, it drives one of the moving blocks 6 to move horizontally, so that the distance between the two moving blocks 6 increases continuously, thereby stretching the cable body 7. The tension is transmitted to the detection end of the tension detector 5 through the moving block 6 on the other side, and the tension detector 5 detects the tension on the cable body 7.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cable tensile testing device, comprising a base plate (1), characterized in that: A rectangular block (2) is fixedly connected to one side of the top of the base plate (1), and a fixing plate (3) is fixedly connected to the other side of the base plate (1). The rectangular block (2) and the fixing plate (3) are connected by a tension member (4). A tension detector (5) is fixedly connected to the top of the rectangular block (2). Two movable blocks (6) are provided on one side of the tension detector (5). One of the movable blocks (6) is fixedly connected to the tension detector (5). A cable body (7) is provided on the top of the two movable blocks (6). A winding mechanism (8) for fixing both ends of the cable body (7) is provided on the top of each movable block (6). A protective mechanism (9) for improving safety performance is provided on one side of the top of the base plate (1).

2. The cable tensile testing device according to claim 1, characterized in that: The winding mechanism (8) includes two winding posts (81) respectively disposed on the top of the moving block (6). A rotating handle (82) is fixedly connected to one side of each of the two winding posts (81). A rubber block (83) is fixedly connected inside each winding post (81). The two ends of the cable body (7) are respectively embedded in the rubber block (83). A first rotating shaft (84) is fixedly connected to the bottom of each winding post (81). The first rotating shaft (84) is rotatably connected to the moving block (6). A ratchet (85) is fixedly connected to the outer surface of the bottom end of the first rotating shaft (84). An elastic element (86) is provided on one side of each ratchet (85).

3. The cable tensile testing device according to claim 2, characterized in that: The elastic element (86) includes a ratchet (861) that meshes with a ratchet (85). A second rotating shaft (862) is rotatably connected inside the ratchet (861). The second rotating shaft (862) is fixedly connected to the moving block (6). A sliding block (863) is fixedly connected to the top of the ratchet (861). A stroke groove is provided on the moving block (6) near the sliding block (863). A spring (864) is provided on the side of the ratchet (861) away from the ratchet (85).

4. The cable tensile testing device according to claim 1, characterized in that: The protective mechanism (9) includes two fixing blocks (91) fixedly installed on the base plate (1), and an acrylic protective cover (92) is rotatably connected between the two fixing blocks (91). The bottom side of the acrylic protective cover (92) is connected to the base plate (1) through a fastener (93).

5. The cable tensile testing device according to claim 4, characterized in that: The fastener (93) includes three strong magnets (931) embedded inside the acrylic protective cover (92). An adsorption plate (932) is fixedly connected to the base plate (1) near the strong magnets (931), and the strong magnets (931) are attracted to the adsorption plate (932).

6. The cable tensile testing device according to claim 1, characterized in that: The tensioning member (4) includes two slide rods (41) fixedly installed between the rectangular block (2) and the fixed plate (3). The moving blocks (6) are slidably connected to the slide rods (41). One of the moving blocks (6) is internally threaded with a screw (42). One end of the screw (42) is rotatably connected to an mounting block (43). The mounting block (43) is fixedly connected to the base plate (1). The other end of the screw (42) is equipped with a motor (44). The motor (44) is fixedly connected to the fixed plate (3).

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