Tensile testing device for wires and cables

Abstract

The utility model discloses a tensile test device for wires and cables, which comprises two symmetrically arranged detection tables, the upper surface of each detection table is provided with three detection grooves, the detection grooves are internally provided with first clamping devices, the side surfaces of the first clamping devices are symmetrically provided with second clamping devices, and the first clamping devices and the second clamping devices are arranged in parallel. An electric telescopic rod is arranged at the end, close to the first clamping device, of the detection table, the first clamping device and the second clamping device are the same in structure, the first clamping device comprises a clamping block, a fixing groove is formed in one side of the clamping block, a penetrating groove is formed in the upper surface of the clamping block, a first sliding groove is formed in the bottom of the fixing groove, and a second sliding groove is formed in the bottom of the first sliding groove. A plurality of first inverted triangular grooves are formed in the two sides of the first sliding groove at equal intervals, two fixing devices are symmetrically arranged above the first sliding groove, an upper fixing block is arranged above the penetrating groove, and a first connecting plate is arranged at the upper end of the upper fixing block; when in use, the wire and cable clamp can clamp wires and cables up, down, left and right in all directions.

Description

Technical Field

[0001] The utility model belongs to the field related to electric wire and cable production devices, and in particular relates to a tensile testing device for electric wires and cables. Background Art

[0002] Wires are conductors that transmit electrical energy. They are mainly used for outdoor overhead and indoor busbars and switch boxes. During the production process of wires, they need to be stretched to prevent unqualified products from entering the market and threatening people's property and life safety. In order to improve the testing efficiency of wires, a tensile testing device for wire production is urgently needed. The existing tensile device can only clamp wires and cables of a single size during the test, and cannot clamp wires and cables of different sizes for testing, so the scope of application is small. Utility Model Content

[0003] The utility model aims to provide a tensile testing device for electric wires and cables in order to solve the problem that the existing clamping device can only clamp electric wires and cables of a single size.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a tensile test device for wires and cables, comprising two symmetrically arranged test tables, each of the test tables having three test slots on its upper surface, a first clamping device provided inside the test slot, a second clamping device symmetrically provided on the side of the first clamping device, an electric telescopic rod provided at one end of the test table close to the first clamping device, the first clamping device and the second clamping device having the same structure, the first clamping device comprising a clamping block, a fixed slot provided on one side of the clamping block, a through slot provided on the upper surface of the clamping block, a first slide slot provided at the bottom of the fixed slot, and the first slide slot A plurality of first inverted triangular grooves are equidistantly arranged on both sides, two fixing devices are symmetrically arranged above the first slide groove, an upper fixing block is arranged above the through groove, a first connecting plate is arranged on the upper end of the upper fixing block, second connecting plates are arranged at both ends of the first connecting plate, a first thread groove is penetrated through the upper surface of the second connecting plate, a first thread column is arranged inside the first thread groove, a plurality of second inverted triangular grooves are equidistantly arranged on the bottom of the upper fixing block, a second slide groove is arranged between the first clamping device, the second clamping device and the detection groove, a second thread groove is penetrated through the upper end of the second slide groove, and a support plate is arranged under the two detection platforms.

[0005] Furthermore, the fixing device includes two symmetrically arranged fixing plates, a plurality of third inverted triangular grooves are evenly arranged on the sides of the fixing plates, a connecting block is provided at one end of the fixing plates, a third thread groove is penetrated through the sides of the connecting blocks, a second thread column is provided inside the third thread groove, a sliding block is provided below the fixing plates, an adjusting column is provided above the sliding block, a plurality of fourth thread grooves are evenly and evenly penetrated through the sides of the adjusting column, a third thread column is provided on the sides of the fourth thread groove, a movable groove is provided between the adjusting column and the fixing plates, and a fifth thread groove is provided on the sides of the movable groove.

[0006] Furthermore, the movable groove coincides with the adjusting column, the fifth thread groove and the fourth thread groove both coincide with the third thread column, the fixed plate is movably connected to the adjusting column, the second thread column coincides with the third thread groove, and the length of the second thread column is the same as the length of the fixed groove.

[0007] Furthermore, the length of the upper fixing block is greater than the height of the fixing groove, the sliding block is located inside the first sliding groove and the two are consistent with each other, and the length of the fixing plate is the same as the width of the fixing groove.

[0008] Furthermore, the clamping blocks on the first clamping device and the second clamping device are both fixedly connected to the detection slot, and the second clamping device is located inside the detection slot on the detection platform away from the electric telescopic rod.

[0009] Furthermore, the detection platform close to the electric telescopic rod is movably connected to the support plate, and the detection platform far from the electric telescopic rod is fixedly connected to the support plate.

[0010] Furthermore, the second connecting plates are both located inside the through grooves and the two are matched with each other, the second thread groove is matched with the first thread column, and the first thread groove is matched with the first thread column.

[0011] Furthermore, the length of the upper fixing block is smaller than the width of the through slot.

[0012] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0013] 1. Clamp the wires and cables through the fixing plate, and then fix the two fixing plates through the second threaded column and the third threaded groove to clamp the two sides of the wires and cables, and then move the upper fixing block to the top of the wires and cables to press them down and fix them, and then fix the upper fixing block through the first threaded column, the first threaded groove and the second threaded groove, and realize the all-round clamping of the wires and cables up and down, left and right through the first inverted triangle groove at the bottom of the fixing groove, and place them in the process of tensile testing to prevent them from detaching;

[0014] 2. The fixing device and the upper fixing block inside the first clamping device and the second clamping device can adjust their positions, so that wires and cables of different sizes can be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is an exploded view of the utility model;

[0017] Figure 3 This is a structural diagram of the first clamping device of the utility model;

[0018] Figure 4 This is an exploded view of the first clamping device of the utility model;

[0019] Figure 5 This is an exploded view of the fixing device of the utility model;

[0020] Figure 6 This is a partial parts diagram of the fixing device of the utility model.

[0021] In the figure: 1-testing table, 2-testing slot, 3-electric telescopic rod, 4-first clamping device, 5-second clamping device, 6-clip plate, 7-second threaded groove, 8-support plate;

[0022] 41-clamping block, 42-fixing groove, 43-through groove, 44-first sliding groove, 45-first inverted triangular groove, 46-fixing device, 47-upper fixing block, 48-first connecting plate, 49-second connecting plate, 410-first threaded groove, 411-first threaded column, 412-second inverted triangular groove;

[0023] 461-fixed plate, 462-third inverted triangle groove, 463-connecting block, 464-third thread groove, 465-second thread column, 466-slider, 467-adjusting column, 468-fourth thread groove, 469-third thread column, 4610-fifth thread groove, 4611-movable groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Combination Figures 1 to 6A tensile testing device for electric wires and cables shown in the figure comprises two symmetrically arranged test tables 1, each of the upper surfaces of the test tables 1 is provided with three test slots 2, a first clamping device 4 is provided inside the test slot 2, a second clamping device 5 is symmetrically provided on the side of the first clamping device 4, an electric telescopic rod 3 is provided at one end of the test table 1 close to the first clamping device 4, the first clamping device 4 and the second clamping device 5 have the same structure, the first clamping device 4 comprises a clamping block 41, a fixing slot 42 is provided on one side of the clamping block 41, a through slot 43 is provided on the upper surface of the clamping block 41, a first slide slot 44 is provided at the bottom of the fixing slot 42, and a plurality of first inverted three-way clamps are arranged equidistantly on both sides of the first slide slot 44 Angle groove 45, two fixing devices 46 are symmetrically arranged above the first slide groove 44, an upper fixing block 47 is arranged above the through groove 43, a first connecting plate 48 is arranged on the upper end of the upper fixing block 47, and second connecting plates 49 are arranged at both ends of the first connecting plate 48, and the upper surface of the second connecting plate 49 is penetrated by a first thread groove 410, and a first thread column 411 is arranged inside the first thread groove 410, and a plurality of second inverted triangular grooves 412 are equidistantly arranged at the bottom of the upper fixing block 47, and second slide grooves 6 are arranged between the first clamping device 4, the second clamping device 5 and the detection groove 2, and a second thread groove 7 is penetrated on the upper end of the second slide groove 6, and a support plate 8 is arranged under the two detection platforms 1.

[0026] Among them, the fixing device 46 includes two symmetrically arranged fixing plates 461, and a plurality of third inverted triangular grooves 462 are evenly arranged on the side of the fixing plate 461, a connecting block 463 is provided at one end of the fixing plate 461, and a third threaded groove 464 is penetrated on the side of the connecting block 463, and a second threaded column 465 is provided inside the third threaded groove 464, a slider 466 is provided below the fixing plate 461, and an adjusting column 467 is provided above the slider 466, and a plurality of fourth threaded grooves 468 are evenly and evenly penetrated on the side of the adjusting column 467, and a third threaded column 469 is provided on the side of the fourth threaded groove 468, a movable groove 4611 is provided between the adjusting column 467 and the fixing plate 461, and a fifth threaded groove 4610 is provided on the side of the movable groove 4611; the fixing device 46 can cooperate with the clamping device to clamp wires and cables of different sizes and perform tensile tests.

[0027] The movable groove 4611 coincides with the adjusting column 467, the fifth thread groove 4610 and the fourth thread groove 468 both coincide with the third thread column 469, the fixed plate 461 is movably connected to the adjusting column 467, the second thread column 465 coincides with the third thread groove 464, and the length of the second thread column 465 is the same as the length of the fixed groove 42.

[0028] The length of the upper fixed block 47 is greater than the height of the fixed groove 42, the slider 466 is located inside the first slide groove 44 and the two are consistent, and the length of the fixed plate 461 is the same as the width of the fixed groove 42; the upper fixed block 47 can fix the top of the wires and cables to prevent movement during the test, and the slider 466 and the first slide groove 44 use sliders and slide grooves with greater resistance, so that the slider 466 will not move easily. The slider 466 and the first slide groove used are specifically described in the prior art.

[0029] The clamping blocks 41 on the first clamping device 4 and the second clamping device 5 are both fixedly connected to the detection slot 2 , and the second clamping device 5 is located inside the detection slot 2 on the detection platform 1 away from the electric telescopic rod 3 .

[0030] The test platform 1 close to the electric telescopic rod 3 is movably connected to the support plate 8, and the test platform 1 far away from the electric telescopic rod 3 is fixedly connected to the support plate 8; after the cable is clamped by the two clamping devices, the test platform 1 is pulled backward by the electric telescopic rod 3 to perform a pulling test on the wires and cables.

[0031] The second connecting plates 49 are all located inside the through grooves 43 and the two are matched with each other, the second thread groove 7 is matched with the first thread column 411, and the first thread groove 410 is matched with the first thread column 411; by cooperating with the first thread column 411 with the second thread groove 7 and the first thread groove 410, the position of the upper fixed block 47 can be adjusted to adapt to wires and cables of different sizes.

[0032] The length of the upper fixing block 47 is smaller than the width of the through slot 43. The electric telescopic rod, the threaded slot and the threaded column in the utility model are all prior arts and are not described here.

[0033] Working principle: When the utility model is used, the first threaded column 411 on the first clamping device is first screwed out upward, and then the upper fixing block 47 is moved upward, and then the wires and cables are placed in the middle position inside the fixing groove 43, and then the two internal fixing plates 461 are moved to the middle of the wires according to the size of the wires and cables. At the same time, the slider 466 drives the adjustment column 467 to move to the side of the moving groove 4611, and then the third threaded column 469 is screwed into the fourth threaded groove 468 on the same horizontal line as the fifth threaded groove 4610, and then screwed into the fifth threaded groove 4610, and then the wires and cables are clamped by the fixing plate 461, and then the second threaded column 465 cooperates with the third The threaded groove 464 fixes the two fixing plates 461 to clamp the two sides of the wires and cables, and then the upper fixing block 47 is moved to the top of the wires and cables to press down and fix them, and then the upper fixing block 47 is fixed by the first threaded column 411 in conjunction with the first threaded groove 410 and the second threaded groove 7, and the first inverted triangle groove 45 at the bottom of the fixing groove 42 is used to clamp the wires and cables in all directions up, down, left and right. In the event of detachment during the tensile test, wires and cables of different sizes can be clamped. Then, according to the above operation, the second clamping device 5 clamps the wires and cables, and then the electric telescopic rod 3 is used to pull the test bench 1 to perform a tensile test on the wires and cables.

[0034] The present invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tensile testing device for wires and cables, characterized in that: The invention comprises two symmetrically arranged detection platforms (1), wherein the upper surface of each detection platform (1) is provided with three detection grooves (2), a first clamping device (4) is provided inside the detection groove (2), a second clamping device (5) is symmetrically provided on the side of the first clamping device (4), an electric telescopic rod (3) is provided at one end of the detection platform (1) close to the first clamping device (4), the first clamping device (4) and the second clamping device (5) have the same structure, the first clamping device (4) comprises a clamping block (41), a fixing groove (42) is provided on one side of the clamping block (41), a through groove (43) is provided on the upper surface of the clamping block (41), a first slide groove (44) is provided at the bottom of the fixing groove (42), a plurality of first inverted triangular grooves (45) are arranged equidistantly on both sides of the first slide groove (44), and the first slide groove (44) is provided with a plurality of first inverted triangular grooves (45) arranged equidistantly on both sides. Two fixing devices (46) are symmetrically arranged above the groove (44); an upper fixing block (47) is arranged above the through groove (43); a first connecting plate (48) is arranged at the upper end of the upper fixing block (47); second connecting plates (49) are arranged at both ends of the first connecting plate (48); a first thread groove (410) is penetrated through the upper surface of the second connecting plate (49); a first thread column (411) is arranged inside the first thread groove (410); a plurality of second inverted triangular grooves (412) are arranged equidistantly at the bottom of the upper fixing block (47); a second slide groove (6) is arranged between the first clamping device (4), the second clamping device (5) and the detection groove (2); a second thread groove (7) is penetrated through the upper end of the second slide groove (6); and a support plate (8) is arranged below the two detection platforms (1).

2. A tensile testing device for electric wires and cables according to claim 1, characterized in that: The fixing device (46) comprises two symmetrically arranged fixing plates (461), the side surfaces of the fixing plates (461) are evenly arranged with a plurality of third inverted triangular grooves (462), one end of each fixing plate (461) is provided with a connecting block (463), the side surfaces of each connecting block (463) are penetrated with a third thread groove (464), the inside of each third thread groove (464) is provided with a second thread column (465), a sliding block (466) is provided below the fixing plate (461), an adjusting column (467) is provided above the sliding block (466), a plurality of fourth thread grooves (468) are evenly and evenly penetrated with a side surface of the adjusting column (467), a third thread column (469) is provided on the side surface of the fourth thread groove (468), a movable groove (4611) is provided between the adjusting column (467) and the fixing plate (461), and a fifth thread groove (4610) is provided on the side surface of the movable groove (4611).

3. A tensile testing device for electric wires and cables according to claim 2, characterized in that: The movable groove (4611) is consistent with the adjusting column (467), the fifth thread groove (4610) and the fourth thread groove (468) are consistent with the third thread column (469), the fixed plate (461) is movably connected to the adjusting column (467), the second thread column (465) is consistent with the third thread groove (464), and the length of the second thread column (465) is the same as the length of the fixed groove (42).

4. A tensile testing device for electric wires and cables according to claim 2, characterized in that: The length of the upper fixing block (47) is greater than the height of the fixing groove (42), the sliding block (466) is located inside the first sliding groove (44) and the two are matched, and the length of the fixing plate (461) is the same as the width of the fixing groove (42).

5. A tensile testing device for electric wires and cables according to claim 1, characterized in that: The clamping blocks (41) on the first clamping device (4) and the second clamping device (5) are both fixedly connected to the detection slot (2), and the second clamping device (5) is located inside the detection slot (2) on the detection platform (1) away from the electric telescopic rod (3).

6. A tensile testing device for electric wires and cables according to claim 1, characterized in that: The detection platform (1) close to the electric telescopic rod (3) is movably connected to the support plate (8), and the detection platform (1) far from the electric telescopic rod (3) is fixedly connected to the support plate (8).

7. A tensile testing device for electric wires and cables according to claim 1, characterized in that: The second connecting plates (49) are both located inside the through grooves (43) and the two are matched with each other, the second thread groove (7) is matched with the first thread column (411), and the first thread groove (410) is matched with the first thread column (411).

8. A tensile testing device for electric wires and cables according to claim 1, characterized in that: The length of the upper fixing block (47) is smaller than the width of the through slot (43).

Images