A withstand voltage test device for flexible mineral insulated cables

Abstract

The utility model discloses a withstand voltage test device for flexible mineral insulated cables, and relates to the technical field of cable withstand voltage test. In view of the problem in the prior art that the cable is difficult to keep straight when the cable is subjected to a withstand voltage test, which easily affects the test result, the following scheme is proposed, including a base, the top of which is connected to a detection mechanism, and a fixing frame is fixed to one side of the top of the base, and a cylinder is fixed to the top inner wall of the fixing frame. The utility model places the insulated cable on the top of the pressure plate, and then rotates the bidirectional screw rod, which drives the two screw-connected clamping blocks to approach each other, clamps and tightens the cable placed on the top of the pressure plate, and keeps the cable straight during the pressure test. The cylinder drives the pressing assembly downward to squeeze the insulated cable, and the force exerted on the top of the pressure plate by the load sensor is transmitted to the digital display control screen, so that the value of the withstand voltage test can be intuitively obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of cable withstand voltage test, in particular to a withstand voltage test device for a flexible mineral insulated cable. Background Art

[0002] The withstand voltage test device for flexible mineral insulated cables is an auxiliary device used in the production and processing of insulated cables to conduct withstand voltage tests on finished insulated cables, so as to better understand the withstand voltage performance of the insulation of the insulated cables. It has been widely used in the technical field of withstand voltage test equipment.

[0003] The existing flexible mineral insulated cables are cut to uneven lengths, which makes it difficult to keep the cables straight during the voltage withstand test, which can easily affect the test results. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a withstand voltage test device for a flexible mineral insulated cable, which overcomes the deficiencies of the prior art and effectively solves the problem in the prior art that when performing a withstand voltage test on the cable, the cable is difficult to keep straight, which easily affects the test results.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A withstand voltage test device for a flexible mineral insulated cable comprises a base, a detection mechanism is connected to the top of the base, a fixing frame is fixed to one side of the top of the base, a cylinder is fixed to the top inner wall of the fixing frame, and a pressing assembly is connected to the bottom end of the cylinder, the detection mechanism comprises a pressure plate, a load sensor installed at the bottom of the pressure plate, a bidirectional screw rod arranged at both ends of the pressure plate and clamping blocks screwed to both ends of the bidirectional screw rod wall, and the pressing assembly comprises a connecting shell, a pressure block inserted in the connecting shell and a positioning rod inserted at the top of the connecting shell.

[0007] Place the insulated cable on the top of the pressure plate, and then rotate the bidirectional screw rod, which drives the two screw-connected clamps to move closer to each other, so as to clamp and tighten the cable placed on the top of the pressure plate, so that the cable remains straight during the pressure test. The cylinder drives the pressing assembly downward to squeeze the insulated cable, and the load sensor transmits the force on the top of the pressure plate to the digital control screen, so that the value of the withstand voltage test can be obtained intuitively.

[0008] Preferably, the top of the base is provided with slots distributed in a rectangular shape, and support rods are fixed to the four corners of the bottom of the pressure plate, and the support rods are plug-fitted with the slots.

[0009] The detection mechanism is fixed on the top of the base by inserting the support rod into the corresponding slot.

[0010] Preferably, a digital display control screen is installed on one side of the bottom of the pressure plate, and the digital display control screen is electrically connected to the load sensor.

[0011] The load sensor transmits the force on the top of the pressure plate to the digital display control screen, so that the value of the pressure test can be obtained intuitively.

[0012] Preferably, grooves are provided on both sides of the top of the pressure plate, and both ends of the bidirectional screw rod are rotatably connected to the inner walls of both ends of the groove, and the clamping block forms a sliding fit with the groove.

[0013] The rotating bidirectional lead screw drives the two threaded clamps to approach each other, clamping and tightening the cable placed on the top of the pressure plate, so that the cable remains straight during the pressure test.

[0014] Preferably, the top of the connecting shell is connected and fixed to the bottom end of the cylinder, and an outer wall at one end of the connecting shell is provided with a mounting groove adapted to the pressing block.

[0015] The pressing block is connected to the connecting shell by inserting the pressing block into the installation groove.

[0016] Preferably, positioning holes are provided on the top of the connecting shell and the top of the pressing block, and the positioning holes are plug-fitted with the positioning rods.

[0017] The pressing block is connected and fixed to the connecting shell by inserting the positioning rod into the positioning hole of the pressing block along the top of the connecting shell.

[0018] The beneficial effects of the utility model are:

[0019] By placing the insulated cable on the top of the pressure plate and then rotating the bidirectional screw, the rotating bidirectional screw drives the two screwed clamps to approach each other, so as to clamp and tighten the cable placed on the top of the pressure plate, so that the cable can remain straight during the pressure test. The cylinder drives the pressing assembly downward to squeeze the insulated cable, and the load sensor transmits the force exerted on the top of the pressure plate to the digital display control screen, so that the value of the withstand voltage test can be obtained intuitively, which effectively solves the problem in the prior art that when the cable is subjected to a withstand voltage test, the cable is difficult to keep straight, which easily affects the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a withstand voltage test device for a flexible mineral insulated cable proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a detection mechanism of a withstand voltage test device for a flexible mineral insulated cable proposed by the utility model;

[0022] Figure 3 The utility model provides a schematic diagram of the structure of a pressing component of a withstand voltage test device for a flexible mineral insulated cable.

[0023] In the figure: 1. base; 2. detection mechanism; 3. fixing frame; 4. cylinder; 5. pressing assembly; 6. pressure plate; 7. support rod; 8. load sensor; 9. digital display control screen; 10. bidirectional screw rod; 11. clamping block; 12. groove; 13. connecting shell; 14. pressure block; 15. positioning rod. 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] Example:

[0026] Reference Figure 1-3 A withstand voltage test device for a flexible mineral insulated cable comprises a base 1, a detection mechanism 2 is connected to the top of the base 1, a fixing frame 3 is fixed to one side of the top of the base 1, a cylinder 4 is fixed to the top inner wall of the fixing frame 3, a pressing assembly 5 is connected to the bottom end of the cylinder 4, the detection mechanism 2 comprises a pressure plate 6, a load sensor 8 installed at the bottom of the pressure plate 6, a bidirectional screw rod 10 arranged at both ends of the pressure plate 6 and a clamping block 11 screwed to both ends of the rod wall of the bidirectional screw rod 10, and the pressing assembly 5 comprises a connecting shell 13, a pressing block 14 inserted into the connecting shell 13 and a positioning rod 15 inserted at the top of the connecting shell 13;

[0027] The top of the base 1 is provided with slots distributed in a rectangular shape, and support rods 7 are fixed to the four corners of the bottom of the pressure plate 6. The support rods 7 form a plug-in fit with the slots. The support rods 7 are inserted into the corresponding slots so that the detection mechanism 2 is fixed to the top of the base 1. A digital display control screen 9 is installed on one side of the bottom of the pressure plate 6. The digital display control screen 9 is electrically connected to the load sensor 8. The load sensor 8 transmits the force exerted on the top of the pressure plate 6 to the digital display control screen 9, so that the value of the pressure resistance test can be intuitively obtained. Grooves 12 are provided on both sides of the top of the pressure plate 6. The two ends of the bidirectional screw rod 10 are rotatably connected to the inner walls of the two ends of the groove 12, and the clamping block 11 forms a sliding fit with the groove 12. The rotating bidirectional screw rod 10 drives the two screw-connected clamping blocks 11 to approach each other, clamping and tightening the cable placed on the top of the pressure plate 6, so that the cable remains straight during the pressure detection process;

[0028] The top of the connecting shell 13 is connected and fixed to the bottom end of the cylinder 4. An outer wall of one end of the connecting shell 13 is provided with a mounting groove adapted to the pressure block 14. The pressure block 14 is connected to the connecting shell 13 by inserting it into the mounting groove. Positioning holes are provided on the top of the connecting shell 13 and the top of the pressure block 14. The positioning holes and the positioning rod 15 form a plug-in fit. The pressure block 14 is connected and fixed to the connecting shell 13 by inserting the positioning rod 15 into the positioning hole of the pressure block 14 along the top of the connecting shell 13.

[0029] Working principle:

[0030] During operation, the insulated cable is placed on the top of the pressure plate 6, and then the bidirectional screw rod 10 is rotated. The rotating bidirectional screw rod 10 drives the two screwed clamping blocks 11 to approach each other, so as to clamp and tighten the cable placed on the top of the pressure plate 6, so that the cable remains straight during the pressure test. The pressing assembly 6 is driven downward by the cylinder 4 to squeeze the insulated cable, and the force exerted on the top of the pressure plate 6 is transmitted to the digital display control screen 9 by the load sensor 8, so that the value of the pressure test can be intuitively obtained.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A withstand voltage test device for a flexible mineral insulated cable, comprising a base (1), characterized in that: The top of the base (1) is connected to a detection mechanism (2), and a fixing frame (3) is fixed to one side of the top of the base (1), a cylinder (4) is fixed to the inner wall of the top of the fixing frame (3), and the bottom of the cylinder (4) is connected to a pressing assembly (5), the detection mechanism (2) comprises a pressure plate (6), a load sensor (8) installed at the bottom of the pressure plate (6), a bidirectional screw rod (10) arranged at both ends of the pressure plate (6), and a clamping block (11) screwed to both ends of the rod wall of the bidirectional screw rod (10), and the pressing assembly (5) comprises a connecting shell (13), a pressing block (14) inserted into the connecting shell (13), and a positioning rod (15) inserted into the top of the connecting shell (13).

2. A withstand voltage test device for a flexible mineral insulated cable according to claim 1, characterized in that: The top of the base (1) is provided with slots distributed in a rectangular shape, and support rods (7) are fixed to the four corners of the bottom of the pressure plate (6), and the support rods (7) are plug-fitted into the slots.

3. A withstand voltage test device for a flexible mineral insulated cable according to claim 1, characterized in that: A digital display control screen (9) is installed on one side of the bottom of the pressure plate (6), and the digital display control screen (9) is electrically connected to the load sensor (8).

4. A withstand voltage test device for a flexible mineral insulated cable according to claim 1, characterized in that: Grooves (12) are provided on both sides of the top of the pressure plate (6), and the two ends of the bidirectional screw rod (10) are rotatably connected to the inner walls of the two ends of the groove (12), and the clamping block (11) and the groove (12) form a sliding fit.

5. A withstand voltage test device for a flexible mineral insulated cable according to claim 1, characterized in that: The top of the connecting shell (13) is connected and fixed to the bottom end of the cylinder (4), and an outer wall at one end of the connecting shell (13) is provided with a mounting groove matched with the pressing block (14).

6. A withstand voltage test device for a flexible mineral insulated cable according to claim 1, characterized in that: Positioning holes are provided on the top of the connection shell (13) and the top of the pressing block (14), and the positioning holes and the positioning rods (15) are plug-fitted.

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