Cable tensile strength test device

Abstract

The utility model belongs to the technical field of cable quality detection, and particularly relates to a cable tensile strength testing device which comprises a bottom plate, a display and a tension sensor, the display is fixedly arranged on the front upper portion of the bottom plate, a guide groove is formed in the right end of the bottom plate, and a tension assembly is arranged on the inner side of the guide groove. A first base is arranged above the tension assembly, a second base is arranged on the right left side of the first base, and the second base is fixed to the upper left portion of the bottom plate. According to the utility model, the handle is pressed down manually to control the rotation of the movable shaft, and at the moment, the convex column fixedly arranged on the outer wall of the left end of the movable shaft can extrude the spiral groove, so that the movable block is pressed and drives the first base fixed at the top of the movable block to stably move rightwards along the guide groove, and a tensile test on a cable is started; and through a second spring and a tension sensor, tension data can be conveniently displayed on a display in real time, and the cable tensile strength limit data can be conveniently observed and recorded.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable quality detection, in particular to a cable tensile strength testing device. Background Art

[0002] Cable is a wire used to transmit electrical energy. It is an insulated conductor composed of one or more mutually insulated wires placed in a sealed sheath. In the process of cable production, in order to ensure that the produced cables can meet actual needs, it is necessary to conduct multiple tests on the cables, among which the tensile strength test is one of them.

[0003] In the Chinese utility model patent with publication number CN218239617U, a power cable strength test device is disclosed. The cable is clamped and fixed by a clamping plate and a second clamping plate to ensure that the cable does not get loose during the strength test, thereby obtaining a reliable effect. The column and the crossbar are fixed vertically to ensure that the cables at both ends are tensile tested in a parallel state. The cables are fixed to the side ends of the column and remain motionless. The second clamping plate at the side end is moved and stretched to clamp and fix the cable.

[0004] After searching and combining with the real problems encountered in the actual quality inspection and testing of cables, it is found that there are still some defects and shortcomings in the above technical solution that need to be improved. First of all, the clamping mechanism for the cable in the above technical solution is relatively simple, and the clamping force of the cable is limited. During the tensile test, the cable end is prone to slipping, affecting the smooth detection of the cable tensile strength. Therefore, it is urgent to improve the existing cable tensile strength test device and provide a cable tensile strength test device with stronger clamping force. Summary of the invention

[0005] The purpose of the utility model is to provide a cable tensile strength testing device with reasonable design, simple structure, strong clamping ability for both ends of a cable and easy operation to solve the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cable tensile strength testing device comprises a base plate, a display and a tension sensor, wherein the display is fixedly provided at the upper front portion of the base plate, a guide groove is opened inside the right end of the base plate, a tension component is provided on the inner side of the guide groove, a first base is provided above the tension component, a second base is provided on the left side of the first base, the second base is fixed to the upper left portion of the base plate, a clamping component is provided above both the first base and the second base, a tension sensor is fixedly installed on the outer wall of the second base on one side close to the first base, a second spring is fixedly connected to the right side of the tension sensor, and the other end of the second spring is fixedly connected to the left side wall of the first base.

[0008] As a preferred embodiment, the pulling assembly includes a movable shaft, a handle, a boss, a movable block and a first spring. The movable shaft bearing is installed inside the right end of the base plate, the right end of the movable shaft is fixedly connected to the handle, the left end outer wall of the movable shaft is fixed with a boss, the outer side of the left end of the movable shaft is movablely sleeved with a movable block, the right side of the movable block is provided with a first spring, and the first spring is sleeved on the outside of the movable shaft.

[0009] As a preferred embodiment, the movable block is snap-fitted and slidably located on the inner side of the guide groove, a spiral groove is provided on the inner wall of the movable block, the end of the protrusion away from the movable shaft is guided and slidably located on the inner side of the spiral groove, and the first base is welded and fixed to the top of the movable block.

[0010] As a preferred embodiment, a plurality of lower retaining grooves are formed at the upper ends of the first base and the second base, and lower rubber pads are bonded to the inner sides of the plurality of lower retaining grooves.

[0011] As a preferred embodiment, the clamping assembly includes a threaded rod, a pressure plate, a vertical rod, an upper retaining groove and an upper rubber pad. The bottom end of the threaded rod is connected to the second base bearing, and the outer threaded sleeve of the threaded rod is provided with a pressure plate. The pressure plate is located directly above the second base. Vertical rods are fixed above the front and rear ends of the right side of the second base. The pressure plate and the vertical rod are connected in a sliding manner. A plurality of upper retaining grooves are provided at the bottom end of the pressure plate, and upper rubber pads are bonded to the inner sides of the plurality of upper retaining grooves.

[0012] As a preferred embodiment, the plurality of upper retention grooves and the plurality of lower retention grooves are arranged in a one-to-one correspondence.

[0013] In the solution of the utility model:

[0014] By using the multiple lower retention grooves provided at the upper ends of the first base and the second base, it is convenient to lay the two ends of the cable to be tested in an "S" shape, and the bottom end of the pressing plate is provided with multiple upper retention grooves corresponding to the lower retention grooves one by one, so that when the threaded rod is manually rotated to control the pressing plate to move down steadily along the vertical rod, the two ends of the cable to be tested can be strongly and firmly clamped. At the same time, the setting of the lower rubber pad and the upper rubber pad can increase friction and further improve the clamping stability, which can avoid the cable end from slipping during the tensile test, and ensure the smooth and stable progress of the test;

[0015] By manually pressing down the handle, the movable shaft is controlled to rotate. At this time, the convex column fixed on the outer wall of the left end of the movable shaft can be used to squeeze the spiral groove, so that the movable block can be compressed and drive the first base fixed on the top thereof to move steadily to the right along the guide groove, and the cable tensile test is started. Through the second spring and the tension sensor, the tension data can be displayed on the display in real time, which is convenient for the observation and recording of the cable tensile strength limit data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0017] Figure 1 This is a three-dimensional front view structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall front cross-sectional structure of the tension component of the utility model;

[0019] Figure 3 This is a front view structural diagram of the utility model in which the movable block is in the rightward movement state;

[0020] Figure 4 This is a schematic diagram of the overall structure of the clamping assembly of the utility model when viewed from above;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the clamping assembly of the utility model in a working state when viewed from above.

[0022] In the figure:

[0023] 1. Bottom plate; 2. Display; 3. Guide groove; 4. Tension assembly; 41. Movable shaft; 42. Handle; 43. Boss; 44. Movable block; 45. Spiral groove; 46. First spring; 5. First base; 6. Second base; 7. Lower retention groove; 8. Lower rubber pad; 9. Clamping assembly; 91. Threaded rod; 92. Pressure plate; 93. Vertical rod; 94. Upper retention groove; 95. Upper rubber pad; 10. Tension sensor; 11. Second spring. DETAILED DESCRIPTION

[0024] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0025] like Figure 1-5 As shown, the utility model cable tensile strength testing device includes a base plate 1, a display 2 and a tension sensor 10, the display 2 is fixedly provided at the upper front of the base plate 1, a guide groove 3 is opened inside the right end of the base plate 1, a tension component 4 is provided on the inner side of the guide groove 3, a first base 5 is provided above the tension component 4, a second base 6 is provided on the left side of the first base 5, the second base 6 is fixed to the upper left of the base plate 1, a clamping component 9 is provided above both the first base 5 and the second base 6, a tension sensor 10 is fixedly installed on the outer wall of the second base 6 on one side close to the first base 5, a second spring 11 is fixedly connected to the right side of the tension sensor 10, and the other end of the second spring 11 is fixedly connected to the left side wall of the first base 5.

[0026] On the basis of the above structure, the tension assembly 4 includes a movable shaft 41, a handle 42, a boss 43, a movable block 44 and a first spring 46. The bearing of the movable shaft 41 is installed inside the right end of the base plate 1. The right end of the movable shaft 41 is fixedly connected to the handle 42. The boss 43 is fixed to the outer wall of the left end of the movable shaft 41. The outer side of the left end of the movable shaft 41 is movably sleeved with a movable block 44. The right side of the movable block 44 is provided with a first spring 46. The first spring 46 is sleeved on the outer side of the movable shaft 41.

[0027] In this embodiment, by providing the tension component 4, it is convenient to control the first base 5 to move stably and horizontally along the guide groove 3, so as to facilitate the tensile strength test of the cable.

[0028] Based on the above structure, the movable block 44 is engaged and slidably located on the inner side of the guide groove 3, a spiral groove 45 is provided on the inner wall of the movable block 44, the end of the protrusion 43 away from the movable shaft 41 is guided and slidably located on the inner side of the spiral groove 45, and the first base 5 is welded and fixed on the top of the movable block 44.

[0029] In this embodiment, when the control handle 42 and the movable shaft 41 rotate, the convex column 43 fixed on the outer wall of the left end of the movable shaft 41 can squeeze the spiral groove 45, thereby squeezing the movable block 44 to control it to slide stably along the guide groove 3.

[0030] On the basis of the above structure, a plurality of lower retaining grooves 7 are formed at the upper ends of the first base 5 and the second base 6 , and lower rubber pads 8 are bonded to the inner sides of the plurality of lower retaining grooves 7 .

[0031] In this embodiment, the arrangement of multiple lower retention grooves 7 facilitates laying of both ends of the cable to be tested in an "S" shape, which can improve the cable clamping strength and enhance the cable clamping positioning stability.

[0032] On the basis of the above structure, the clamping assembly 9 includes a threaded rod 91, a pressure plate 92, a vertical rod 93, an upper retention groove 94 and an upper rubber pad 95. The bottom end of the threaded rod 91 is connected to the bearing of the second base 6. The outer threaded sleeve of the threaded rod 91 is provided with a pressure plate 92. The pressure plate 92 is located directly above the second base 6. Vertical rods 93 are fixed above the front and rear ends of the right side of the second base 6. The pressure plate 92 and the vertical rod 93 are connected in a sliding manner. A plurality of upper retention grooves 94 are provided at the bottom end of the pressure plate 92. Upper rubber pads 95 are bonded to the inner sides of the plurality of upper retention grooves 94.

[0033] In this embodiment, by manually rotating the threaded rod 91, the pressing plate 92 can be controlled to move downward to clamp and position the cable end, and the vertical rod 93 can be used to improve the stability of the pressing plate 92 during the lifting and lowering adjustment process.

[0034] On the basis of the above structure, the plurality of upper retention grooves 94 and the plurality of lower retention grooves 7 are arranged in a one-to-one correspondence.

[0035] In this embodiment, a plurality of upper retaining grooves 94 and a plurality of lower retaining grooves 7 corresponding to each other are used to facilitate stable clamping of the cable, and the arrangement of the lower rubber pad 8 and the upper rubber pad 95 can increase friction and further improve the clamping stability.

[0036] The working principle of the utility model is as follows:

[0037] When in use, firstly, the multiple lower retention grooves 7 provided on the first base 5 and the second base 6 are used to lay both ends of the cable to be tested in an "S" shape on the first base 5 and the second base 6, respectively. Then, the threaded rod 91 is manually rotated to control the pressing plate 92 to move down steadily along the vertical rod 93. Since the bottom end of the pressing plate 92 is provided with multiple upper retention grooves 94 corresponding to the lower retention grooves 7, the two pressing plates 92 are respectively closed with the first base 5 and the second base 6, so that the cable to be tested with both ends laid in an "S" shape can be strongly and firmly clamped. At the same time, the setting of the lower rubber pad 8 and the upper rubber pad 95 can increase friction and further improve the clamping stability, so as to achieve strong clamping and positioning of the cable to be tested, avoid slipping of the cable end during the tensile test, and ensure the smooth and stable conduct of the test.

[0038] After the two ends of the cable to be tested are firmly clamped, the handle 42 can be held and pressed down with force, and the movable shaft 41 can be controlled to drive the convex column 43 fixed on the outer wall of the left end thereof to rotate synchronously. At this time, the convex column 43 can squeeze the spiral groove 45, so that the movable block 44 can be squeezed and drive the first base 5 fixed on the top thereof to move horizontally to the right synchronously along the guide groove 3, and the cable can be subjected to a tensile test. Through the second spring 11 and the tension sensor 10, the tension data can be displayed on the display 2 in real time, so as to facilitate the observation and recording of the cable tensile strength limit data;

[0039] It should be noted that the display 2 and the tension sensor 10 are both existing products, and their associated connection method, specific structure and working principle all refer to existing mature technologies. Since they are not the innovative direction of this case, they will not be described in detail.

[0040] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A cable tensile strength test device, comprising a base plate (1), a display (2) and a tension sensor (10), characterized in that: A display (2) is fixedly provided at the upper front portion of the bottom plate (1); a guide groove (3) is provided inside the right end of the bottom plate (1); a tension component (4) is provided inside the guide groove (3); a first base (5) is provided above the tension component (4); a second base (6) is provided directly to the left of the first base (5); the second base (6) is fixed to the upper left portion of the bottom plate (1); a clamping component (9) is provided above both the first base (5) and the second base (6); a tension sensor (10) is fixedly installed on the outer wall of the second base (6) on a side close to the first base (5); a second spring (11) is fixedly connected to the right side of the tension sensor (10); the other end of the second spring (11) is fixedly connected to the left side wall of the first base (5).

2. A cable tensile strength test device according to claim 1, characterized in that: The pulling force assembly (4) comprises a movable shaft (41), a handle (42), a convex column (43), a movable block (44) and a first spring (46); the movable shaft (41) bearing is mounted inside the right end of the bottom plate (1); the right end of the movable shaft (41) is fixedly connected to the handle (42); the outer wall of the left end of the movable shaft (41) is fixed with a convex column (43); the outer side of the left end of the movable shaft (41) is movably sleeved with a movable block (44); the right side of the movable block (44) is provided with a first spring (46); and the first spring (46) is sleeved on the outer side of the movable shaft (41).

3. A cable tensile strength test device according to claim 2, characterized in that: The movable block (44) is engaged and slidably located inside the guide groove (3); a spiral groove (45) is provided on the inner wall of the movable block (44); one end of the convex column (43) away from the movable shaft (41) is guided and slidably located inside the spiral groove (45); and the first base (5) is welded and fixed to the top of the movable block (44).

4. A cable tensile strength test device according to claim 1, characterized in that: A plurality of lower retention grooves (7) are provided at the upper ends of the first base (5) and the second base (6), and lower rubber pads (8) are bonded to the inner sides of the plurality of lower retention grooves (7).

5. A cable tensile strength test device according to claim 4, characterized in that: The clamping assembly (9) comprises a threaded rod (91), a pressure plate (92), a vertical rod (93), an upper retention groove (94) and an upper rubber pad (95). The bottom end of the threaded rod (91) is connected to the bearing of the second base (6). The outer thread of the threaded rod (91) is sleeved with a pressure plate (92). The pressure plate (92) is located directly above the second base (6). Vertical rods (93) are fixed above the front and rear ends of the right side of the second base (6). The pressure plate (92) and the vertical rod (93) are connected in a sliding manner. A plurality of upper retention grooves (94) are provided at the bottom end of the pressure plate (92). The inner sides of the plurality of upper retention grooves (94) are bonded with upper rubber pads (95).

6. A cable tensile strength test device according to claim 5, characterized in that: The plurality of upper retention grooves (94) and the plurality of lower retention grooves (7) are arranged in a one-to-one correspondence.

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