Tensile testing device for flame-retardant fireproof cable
By introducing a protective cover structure into the cable tensile test device, the problem of cable breakage and ejection is solved, and the safety protection of equipment and personnel is achieved.
Patent Information
- Application Number
- CN202422894719.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing cable tensile testing devices are prone to causing cable breakage during testing, which can cause equipment damage and safety threats.
A device including a test platform, a movable clamp and a protective cover is designed. The protective cover consists of a lower fixed cover and an upper movable cover, which are hinged together and sleeved on the outside of the cable to prevent the cable from breaking and ejecting.
It effectively prevents the cable from being ejected after breaking, protects the safety of test equipment and surrounding personnel, and reduces testing costs.
Smart Images
Figure CN223485672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tensile testing technology, specifically to a device for testing the tensile strength of flame-retardant and fire-resistant cables. Background Art
[0002] Cables are typically made up of several or several groups of conductors twisted together. They are characterized by being internally energized and externally insulated. During the production process, cables need to be covered with an insulation layer on the outside of the metal wires. During the laying of power wires or cables, especially during the laying of some overhead lines, the ends of long-distance lines and cables are subjected to a great deal of traction. Even if the internal conductors of the wires and cables can still conduct electricity, the external insulation layer will undergo a great deal of deformation in some local areas, which will also affect the overall insulation protection effect of the wires and cables.
[0003] Existing cable tensile testing equipment may cause the cable to break during tensile testing. When the cable breaks, the elastic force causes the broken cable to bounce off, which can easily damage the testing equipment without protective devices, leading to equipment failure, increased testing costs, and also threatening the personal safety of nearby personnel. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a tensile testing device for flame-retardant and fireproof cables. This solves the problem that existing cable tensile testing devices may result in cable breakage during tensile testing. When the cable breaks, the elastic force causes the broken cable to eject, which, without a protective device, can easily damage the testing equipment, leading to equipment failure, increased testing costs, and also threatening the personal safety of nearby personnel.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a tensile testing device for flame-retardant and fireproof cables, comprising a testing platform, a movable clamp, and a protective cover. The movable clamp is connected to the testing platform, and the protective cover is located above the testing platform. The testing platform includes a support frame and a fixed slide groove. The fixed slide groove is located at the top of the support frame, and a slide rail is fixedly installed at the top of the support frame. A fixing member is fixedly installed at one end of the support frame, and the fixed slide groove is fixedly connected to the support frame.
[0006] The protective cover includes a lower fixed cover and an upper movable cover. The upper movable cover is located on top of the lower fixed cover, and a support rod is fixedly installed at the bottom of the lower fixed cover. The upper movable cover is hinged to the lower fixed cover.
[0007] Preferably, the bottom of the support frame is provided with a support leg, and the top of the support leg is fixedly connected to the support frame.
[0008] Preferably, a first slot is provided on the inner side of the fixed slide groove, a first bidirectional threaded rod is provided in the first slot, a first clamping block is sleeved on the outer side of the first bidirectional threaded rod, a first clamping plate is provided at the bottom of the first clamping block, and the first clamping plate is engaged in the first slot.
[0009] Preferably, a power motor is fixedly installed on the top of the fixing member, and a threaded push rod is fixedly connected to the output end of the power motor, the threaded push rod being inserted into the inner side of the support frame.
[0010] Preferably, the first bidirectional threaded rod is inserted into the inner side of the fixed slide groove, and one end of the first bidirectional threaded rod passes through the fixed slide groove to the outer side and is connected to a rotating handle, and the clamping surface of the first clamping block is set to a wave shape.
[0011] Preferably, the movable chuck includes a movable slide groove and a second bidirectional threaded rod. The second bidirectional threaded rod is located inside the movable slide groove. A slider is fixedly provided at the bottom of the movable slide groove. A second slot is provided inside the movable slide groove. A second clamping block is sleeved on the outside of the second bidirectional threaded rod. The clamping surface of the second clamping block is set to a wave shape. A second clamping plate is fixedly connected to the bottom of the second clamping block. The second clamping plate is engaged inside the second slot.
[0012] Preferably, the support rod is fixedly connected to the top of the support frame.
[0013] Preferably, the slider is sleeved on the outside of the threaded push rod, and the slider is threadedly connected to the threaded push rod.
[0014] This utility model discloses a tensile testing device for flame-retardant and fireproof cables, which has the following beneficial effects: It is equipped with a protective cover, including a lower fixed cover and an upper movable cover, which are hinged together. When the cable tensile test is performed, the protective cover is fitted over the outside of the cable without contacting the cable. Without affecting the test results, it effectively prevents the cable from breaking and bouncing in all directions, thus protecting the safety of the testing equipment and the surrounding personnel. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 It is a structural diagram of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the testing platform of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the movable chuck of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the protective cover of this utility model.
[0020] In the diagram: 1. Test platform; 11. Support frame; 111. Slide rail; 112. Fixing component; 12. Support leg; 13. Fixed slide groove; 131. First slot; 132. First bidirectional threaded rod; 133. First clamping block; 134. First clamping plate; 14. Power motor; 141. Threaded push rod; 2. Moving chuck; 21. Moving slide groove; 211. Slider; 212. Second slot; 22. Second bidirectional threaded rod; 23. Second clamping block; 24. Second clamping plate; 3. Protective cover; 31. Lower fixed cover; 311. Support rod; 32. Upper movable cover. DETAILED DESCRIPTION
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] This application provides a tensile testing device for flame-retardant and fire-resistant cables, solving the problem that existing cable tensile testing devices sometimes result in cable breakage during tensile testing. When a cable breaks, the elastic force causes the broken cable to eject, which, without a protective device, can easily damage the testing equipment, leading to equipment failure, increased testing costs, and threats to the personal safety of nearby personnel. This application provides effective protection for the testing equipment and improves the safety of the testing environment.
[0023] This utility model discloses a tensile testing device for flame-retardant and fireproof cables.
[0024] According to the appendix Figure 1-4 As shown, the test platform includes a test platform 1, a movable clamp 2, and a protective cover 3. The movable clamp 2 is connected to the test platform 1, and the protective cover 3 is located above the test platform 1. The test platform 1 includes a support frame 11 and a fixed slide 13. The fixed slide 13 is located at the top of the support frame 11. A slide rail 111 is fixedly installed at the top of the support frame 11. A fastener 112 is fixedly installed at one end of the support frame 11. The fixed slide 13 is fixedly connected to the support frame 11.
[0025] The protective cover 3 includes a lower fixed cover 31 and an upper movable cover 32. The upper movable cover 32 is located on top of the lower fixed cover 31. A support rod 311 is fixedly installed at the bottom of the lower fixed cover 31. The upper movable cover 32 is hinged to the lower fixed cover 31.
[0026] A protective cover 3 is provided, which consists of a lower fixed cover 31 and an upper movable cover 32, and the lower fixed cover 31 and the upper movable cover 32 are hinged together. When the cable tensile test is performed, the protective cover 3 is sleeved on the outside of the cable without contacting the cable. Without affecting the test results, it effectively prevents the cable from bouncing in all directions after it breaks, thus protecting the safety of the test equipment and the surrounding personnel.
[0027] Furthermore, a support leg 12 is provided at the bottom of the support frame 11, and the top of the support leg 12 is fixedly connected to the support frame 11.
[0028] Furthermore, a first slot 131 is provided on the inner side of the fixed slide groove 13, a first bidirectional threaded rod 132 is provided in the first slot 131, a first clamping block 133 is sleeved on the outer side of the first bidirectional threaded rod 132, a first clamping plate 134 is provided at the bottom of the first clamping block 133, and the first clamping plate 134 is engaged in the first slot 131.
[0029] Specifically disclosed, a power motor 14 is fixedly installed on the top of the fastener 112, and a threaded push rod 141 is fixedly connected to the output end of the power motor 14. The threaded push rod 141 is inserted into the inner side of the support frame 11.
[0030] Specifically disclosed, the first bidirectional threaded rod 132 is inserted into the inner side of the fixed slide groove 13, and one end of the first bidirectional threaded rod 132 passes through the fixed slide groove 13 to the outside and is connected to a rotating handle. The clamping surface of the first clamping block 133 is set to be wavy.
[0031] It should be emphasized that the movable chuck 2 includes a movable slide 21 and a second bidirectional threaded rod 22. The second bidirectional threaded rod 22 is located inside the movable slide 21. A slider 211 is fixedly installed at the bottom of the movable slide 21. A second slot 212 is opened inside the movable slide 21. A second clamping block 23 is sleeved on the outside of the second bidirectional threaded rod 22. The clamping surface of the second clamping block 23 is set to be wavy. A second clamping plate 24 is fixedly connected to the bottom of the second clamping block 23. The second clamping plate 24 is engaged inside the second slot 212.
[0032] It should be emphasized that the support rod 311 is fixedly connected to the top of the support frame 11.
[0033] It should be emphasized that the slider 211 is sleeved on the outside of the threaded push rod 141, and the slider 211 is threadedly connected to the threaded push rod 141.
[0034] Working principle: First, determine the length of the test cable according to the size of the device, and fix one end of the prepared cable with the first clamp 133.
[0035] Then, open the protective cover 3, put the cable into the protective cover 3, and then close the protective cover 3;
[0036] Finally, the other end of the cable is fixed and clamped using the second clamp 23. The power motor 14 is started to drive the threaded push rod 141 to adjust the cable so that the cable is in contact with the protective cover 3, and then the test is started.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A tensile testing device for flame-retardant and fireproof cables, comprising a testing platform (1), a movable clamp (2), and a protective cover (3), wherein the movable clamp (2) is connected to the testing platform (1), and the protective cover (3) is located above the testing platform (1), characterized in that, The test platform (1) includes a support frame (11) and a fixed slide (13). The fixed slide (13) is located on the top of the support frame (11). A slide rail (111) is fixedly installed on the top of the support frame (11). A fastener (112) is fixedly installed at one end of the support frame (11). The fixed slide (13) is fixedly connected to the support frame (11). The protective cover (3) includes a lower fixed cover (31) and an upper movable cover (32). The upper movable cover (32) is located on top of the lower fixed cover (31). A support rod (311) is fixedly installed at the bottom of the lower fixed cover (31). The upper movable cover (32) is hinged to the lower fixed cover (31).
2. The tensile testing device for flame-retardant and fire-resistant cables according to claim 1, characterized in that, The bottom of the support frame (11) is provided with a support leg (12), and the top of the support leg (12) is fixedly connected to the support frame (11).
3. The tensile testing device for flame-retardant and fire-resistant cables according to claim 1, characterized in that, The fixed slide (13) has a first slot (131) on its inner side. A first bidirectional threaded rod (132) is provided in the first slot (131). A first clamping block (133) is sleeved on the outer side of the first bidirectional threaded rod (132). A first clamping plate (134) is provided at the bottom of the first clamping block (133). The first clamping plate (134) is engaged in the first slot (131).
4. The tensile testing device for flame-retardant and fire-resistant cables according to claim 1, characterized in that, A power motor (14) is fixedly installed on the top of the fastener (112), and a threaded push rod (141) is fixedly connected to the output end of the power motor (14). The threaded push rod (141) is inserted into the inside of the support frame (11).
5. The tensile testing device for flame-retardant and fire-resistant cables according to claim 3, characterized in that, The first bidirectional threaded rod (132) is inserted into the inner side of the fixed slide groove (13), and one end of the first bidirectional threaded rod (132) passes through the fixed slide groove (13) to the outside and is connected to a rotating handle. The clamping surface of the first clamping block (133) is set to be wavy.
6. The tensile testing device for flame-retardant and fire-resistant cables according to claim 1, characterized in that, The movable chuck (2) includes a movable slide (21) and a second bidirectional threaded rod (22). The second bidirectional threaded rod (22) is located inside the movable slide (21). A slider (211) is fixedly provided at the bottom of the movable slide (21). A second slot (212) is provided inside the movable slide (21). A second clamping block (23) is sleeved on the outside of the second bidirectional threaded rod (22). The clamping surface of the second clamping block (23) is wavy. A second clamping plate (24) is fixedly connected to the bottom of the second clamping block (23). The second clamping plate (24) is engaged inside the second slot (212).
7. The tensile testing device for flame-retardant and fire-resistant cables according to claim 1, characterized in that, The support rod (311) is fixedly connected to the top of the support frame (11).
8. The tensile testing device for flame-retardant and fire-resistant cables according to claim 6, characterized in that, The slider (211) is sleeved on the outside of the threaded push rod (141), and the slider (211) is threadedly connected to the threaded push rod (141).