Pressurization test device and method for cable insulation material

Abstract

The invention relates to the technical field of pressurization test devices, in particular to a pressurization test device and method for a cable insulating material, and the device comprises a test box, the test box is provided with a feeding mechanism, the feeding mechanism is provided with a clamping mechanism, the feeding mechanism is provided with a locking mechanism, and the feeding mechanism is provided with a positioning mechanism. A sealing mechanism is mounted on the discharging mechanism, and a holding mechanism is mounted on the discharging mechanism; through cooperative installation of the discharging mechanism and the test box, placement and feeding of a plurality of cables needing to be tested are facilitated, through driving of the discharging mechanism, the clamping mechanism is abutted against, then the clamping mechanism clamps the two ends of the placed cables firmly and stably, through cooperation of the locking mechanism and the positioning mechanism, locking control after feeding of the discharging mechanism is facilitated, and the clamping mechanism is convenient to operate. The sealing mechanism is driven through the locking mechanism, the sealing effect is better, and the holding mechanism is installed so that the discharging mechanism can be conveniently held and moved after being pulled out.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure test devices, and specifically to a pressure test device and method for cable insulation materials. Background Art

[0002] Electric wires and cables are wire products used to transmit electrical energy, information, and realize the conversion of electromagnetic energy. In a broad sense, electric wires and cables are also simply referred to as cables. In a narrow sense, a cable refers to an insulated cable. Electric wires and cables are composed of one or more insulated wire cores, as well as their respective possible coating layers, total protective layers, and outer protective layers. Cables can also have additional non-insulated conductors. The pressure test of cable insulation materials is an important test used to evaluate the performance and reliability of cable insulation materials under high voltage conditions.

[0003] The existing patent number is: 202420062808.1, a pressure test device and method for cable insulation materials, which can pressurize and test the cable by creating different environments to better judge the quality of the cable.

[0004] However, when this patent pressurizes and tests the cable, it is necessary to hold the cable and put it into the box from the top, and then fix it with a clamp. Due to the high height of the box body, the operating space of the arm is limited from the top, and the operation is very inconvenient. Moreover, when fixing, it is necessary to manually clamp and tighten the end of the cable, the operation is cumbersome, the efficiency is low, and it is easy to have accidents when the hand is put into the device for operation. In addition, this device is not convenient for placing multiple cables, thus reducing the test efficiency. And for the partially punctured cable, there will be a skin-breaking phenomenon, and the broken debris is not convenient for storage. At the same time, the box body lacks a good sealing component. Traditionally, it is sealed by installing a sealing ring, and the sealing ring is prone to losing elasticity after long-term use, thereby affecting the sealing efficiency and reducing the service life. Summary of the Invention

[0005] In view of the problems in the prior art, the present invention provides a pressure test device and method for cable insulation materials.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a pressure test device and method for cable insulation materials, including a test box, a feeding mechanism is installed on the test box, a clamping mechanism is installed on the feeding mechanism, a locking mechanism is installed on the feeding mechanism, a positioning mechanism is installed on the feeding mechanism, a sealing mechanism is installed on the feeding mechanism, and a holding mechanism is installed on the feeding mechanism.

[0007] Specifically, the feeding mechanism includes side plates. One side of the test box is detachably connected with side plates through a plurality of bolts. There are clamping grooves on both sides inside the test box. The inner side of the test box is slidably connected with a placement rack through the clamping grooves. One end of the placement rack extends to the outside of the side plate, and the placement rack is slidably connected with the side plate. A plurality of equally spaced cross bars are connected to the placement rack.

[0008] Specifically, two handles are installed on the outside of one end of the placement rack, and a protective net is installed at the bottom of the placement rack. The protective net is located at the bottom of a plurality of cross bars.

[0009] Specifically, a sealing gasket is installed at the edge of one side of the side plate. The sealing gasket abuts against the outside of the test box. The placement rack is of a frame structure.

[0010] Specifically, the clamping mechanism includes clamping blocks. A plurality of groups of symmetrically distributed clamping blocks are respectively installed at both ends of the placement rack. Two symmetric clamping blocks are in a group. Among the multiple groups of clamping blocks, one of the clamping blocks is fixedly connected to the placement rack, and the other clamping block is slidably connected to the placement rack. Driving plates are respectively slidably connected to the inner parts of both ends of the placement rack through return springs. One end of the driving plate extends to the outside of the placement rack. One side of multiple slidable clamping blocks is fixedly connected to one side of the driving plate.

[0011] Specifically, one side of the clamping block is of an arc structure. Protective pads are respectively installed on the opposite sides of two symmetric clamping blocks. The protective pads are of an arc structure.

[0012] Specifically, top blocks are respectively installed at one ends of the two driving plates. A rubber block is installed at one end of the top block. The other end of the top block extends into the driving plate. The other end of the top block is slidably connected to the inside of the driving plate through a buffer spring.

[0013] Specifically, the locking mechanism includes locking grooves. Symmetric locking grooves are provided inside the side plate. One end of the locking groove is located outside the placement rack. Two symmetric limiting rods are slidably connected to the inside of the side wall at one end of the placement rack. The opposite ends of the two limiting rods extend to the outside of the placement rack and are engaged with the locking grooves. A gear is rotatably connected to the center of the inside of one end of the placement rack. Symmetric rack bars are respectively engaged with the top and bottom of the gear. The opposite ends of the two rack bars are respectively connected to the opposite ends of the two limiting rods. The rack bars are slidably connected to the inside of the placement rack through the limiting rods. A torsion is rotatably connected to the center of the outside of one end of the placement rack. The central axis of the torsion extends into the placement rack and is connected to the gear.

[0014] Specifically, the positioning mechanism includes grooves. Two grooves distributed at 90 degrees are provided on the central axis of the torsion. A convex block is installed inside the side wall at one end of the placement rack. The convex block is slidably connected to the inside of the placement rack through a resisting spring. The bottom of the convex block is of a hemispherical structure. The bottom of the convex block abuts against the inside of one of the grooves.

[0015] Specifically, the sealing mechanism includes a sealing ring. The sealing ring is installed on the outer side wall of one end of the placement rack. The sealing ring is of a frame structure, and the outer side of the sealing ring abuts against the inner wall of the side plate.

[0016] Specifically, two air bags are slidably connected inside one end of the placement rack. The two air bags are respectively communicated with both ends of the sealing ring. Push plates are respectively connected to the opposite sides of the two air bags. The push plates are slidably connected to the inside of the placement rack. One ends of the two push plates are respectively vertically connected to two limiting rods.

[0017] Specifically, the holding mechanism includes a storage groove. The storage grooves are arranged at the tops of both sides of the placement rack. A sliding plate is arranged inside the storage groove. The sliding plate is slidably connected to the inside of the storage groove through a plurality of compression springs. Handles are respectively installed on the tops of the two sliding plates. The handles are slidably connected to the storage groove through the sliding plates. The two ends of the top of the handle are of an arc structure.

[0018] A pressurized test device and method for cable insulating materials, comprising the following steps:

[0019] S1: First, cut a certain length of multiple cables with different thicknesses. Then, drive the locking mechanism to release the limit of the feeding mechanism, and then draw out the feeding mechanism by pulling.

[0020] S2: After the feeding mechanism is drawn out to a certain position, the holding mechanism pops out, which is convenient for cooperating with the holding mechanism to take out the feeding mechanism and place it on the workbench. At this time, the clamping mechanism is opened without external force resistance.

[0021] S3: Then, put both ends of the cables with different thicknesses on the clamping mechanism, and then insert the feeding mechanism into the test box. After the feeding mechanism is inserted in place, the clamping mechanism clamps both ends of the multiple cables, and at the same time, drive the locking mechanism to limit the feeding mechanism, thereby realizing the pressurized test work.

[0022] S4: At the same time, when the locking mechanism is driven, it drives the sealing mechanism to work, so that the feeding mechanism and the test box are tightly sealed, ensuring the pressure environment of the test box and making the cable test effect better.

[0023] The beneficial effects of the present invention are:

[0024] (1) For the pressurized test device and method for cable insulating materials of the present invention, through the cooperative installation of the feeding mechanism and the test box, it is convenient to place and feed multiple cables to be tested, and the operation is safe and convenient.

[0025] (2) For the pressurized test device and method for cable insulating materials of the present invention, through the installation of the clamping mechanism, under the drive of the feeding mechanism, the clamping mechanism is resisted, so that the clamping mechanism firmly and stably clamps both ends of the placed cables.

[0026] (3) The pressurized test device and method for a cable insulation material according to the present invention facilitate locking after feeding by the feeding mechanism through the installation of the locking mechanism, realizing the cable testing work. Through the cooperation of the positioning mechanism, the locking mechanism can be flexibly positioned during operation and will not loosen.

[0027] (4) The pressurized test device and method for a cable insulation material according to the present invention facilitate sealing between the feeding mechanism and the test box through the installation of the sealing mechanism. At the same time, the sealing mechanism is driven by the locking mechanism to achieve a better sealing effect.

[0028] (5) The pressurized test device and method for a cable insulation material according to the present invention facilitate holding after pulling out the feeding mechanism through the installation of the holding mechanism, realizing the transfer of the feeding mechanism to the desktop for storing materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the drawings and embodiments.

[0030] Figure 1 It is a schematic diagram of the overall structure provided by the present invention;

[0031] Figure 2 It is a schematic diagram of the connection structure between the side plate and the test box of the present invention;

[0032] Figure 3 It is a schematic diagram of the connection structure between the cross bar and the placement rack of the present invention;

[0033] Figure 4 It is a schematic diagram of the connection structure between the clamping block and the placement rack of the present invention;

[0034] Figure 5 It is a schematic diagram of the connection structure between the clamping block and the driving plate of the present invention;

[0035] Figure 6 It is a schematic diagram of the connection structure between the top block and the buffer spring of the present invention;

[0036] Figure 7 It is a schematic diagram of the connection structure between the handle and the sliding plate of the present invention;

[0037] Figure 8 It is a schematic diagram of the connection structure between the limiting rod and the toothed plate of the present invention;

[0038] Figure 9 It is a schematic diagram of the connection structure between the toothed plate and the gear of the present invention;

[0039] Figure 10 It is a schematic diagram of the connection structure between the convex block and the twisting knob of the present invention;

[0040] Figure 11Schematic diagram of the connection structure between the airbag and the sealing ring of the present invention.

[0041] In the figure: 1, test box; 2, feeding mechanism; 201, side plate; 202, bolt; 203, placement rack; 204, handle; 205, card slot; 206, gasket; 207, cross bar; 208, protective net; 3, clamping mechanism; 301, clamping block; 302, rubber block; 303, top block; 304, driving plate; 305, protective pad; 306, return spring; 307, buffer spring; 4, locking mechanism; 401, turning knob; 402, locking groove; 403, limiting rod; 404, toothed plate; 405, gear; 5, positioning mechanism; 501, groove; 502, convex block; 503, abutting spring; 6, sealing mechanism; 601, sealing ring; 602, push plate; 603, airbag; 7, holding mechanism; 701, storage groove; 702, handle; 703, sliding plate; 704, compression spring. Detailed implementation manners

[0042] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0043] As Figure 1 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 10 and Figure 11 shown, a pressure test device and method for a cable insulating material according to the present invention includes a test box 1, a feeding mechanism 2 is installed on the test box 1, a clamping mechanism 3 is installed on the feeding mechanism 2, a locking mechanism 4 is installed on the feeding mechanism 2, a positioning mechanism 5 is installed on the feeding mechanism 2, a sealing mechanism 6 is installed on the feeding mechanism 2, and a holding mechanism 7 is installed on the feeding mechanism 2.

[0044] Specifically, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the feeding mechanism 2 includes side plates 201. One side of the test box 1 is detachably connected to the side plates 201 through a plurality of bolts 202. Card slots 205 are provided on both sides inside the test box 1. A placement rack 203 is slidably connected to the inner side of the test box 1 through the card slots 205. One end of the placement rack 203 extends to the outside of the side plates 201, and the placement rack 203 is slidably connected to the side plates 201. A plurality of equally spaced cross bars 207 are connected to the placement rack 203. Through the detachable installation of the side plates 201, it is convenient for subsequent disassembly and maintenance. Through the sliding connection between the placement rack 203 and the test box 1, it is convenient to place the cables after the placement rack 203 is pulled out. The operation is convenient and safe, and multiple cables can be placed at the same time. With the cooperation of the cross bars 207, it is beneficial to lift the cables without deformation, facilitating subsequent testing work.

[0045] Specifically, as Figure 3 and Figure 4 shown, two handles 204 are installed on the outer side of one end of the placement rack 203, and a protective net 208 is installed at the bottom of the placement rack 203. The protective net 208 is located at the bottom of a plurality of cross bars 207. Through the installation of the two handles 204, it is beneficial to pull and control the placement rack 203, and the operation is convenient. Through the installation of the protective net 208, it is beneficial to pick up the debris generated during the cable test, facilitating subsequent cleaning.

[0046] Specifically, as Figure 1 and Figure 2 shown, a sealing gasket 206 is installed at the edge of one side of the side plates 201. The sealing gasket 206 abuts against the outside of the test box 1. The placement rack 203 is of a frame structure. Through the installation of the sealing gasket 206, it is beneficial to have good sealing performance after the side plates 201 are installed. And through the design of the frame structure of the placement rack 203, it is convenient for cable placement and detection.

[0047] Specifically, as Figure 3 、 Figure 4 and Figure 5As shown, the clamping mechanism 3 includes clamping blocks 301. At both ends of the placement rack 203, multiple groups of symmetrically distributed clamping blocks 301 are installed. Two symmetric clamping blocks 301 form a group. Among the multiple groups of clamping blocks 301, one of the clamping blocks 301 is fixedly connected to the placement rack 203, and the other clamping block 301 is slidably connected to the placement rack 203. Inside both ends of the placement rack 203, drive plates 304 are slidably connected through return springs 306 respectively. One end of the drive plate 304 extends to the outside of the placement rack 203. One side of multiple slidable clamping blocks 301 is fixedly connected to one side of the drive plate 304. Through the installation of the drive plate 304, under the resistance of the return spring 306, the drive plate 304 drives multiple clamping blocks 301 to slide, thereby increasing the distance between two symmetric clamping blocks 301, facilitating the placement of both ends of the tested cable. After the placement rack 203 is inserted into the test box 1, the two drive plates 304 on the placement rack 203 are resisted by the inner wall of the test box 1, and the drive plate 304 contracts against the elastic force of the return spring 306, thereby driving the clamping block 301 by the drive plate 304 to clamp the end of the cable. Through the clamping of the cable by the two clamping blocks 301, the cable is stably placed without loosening.

[0048] Specifically, as Figure 5 shown, one side of the clamping block 301 is an arc structure. Protective pads 305 are respectively installed on the opposite sides of two symmetric clamping blocks 301. The protective pads 305 are arc structures. Through the design of the arc structure on one side of the clamping block 301, it is beneficial for the two clamping blocks 301 to stably clamp the cable, so that the cable will not slip off during clamping, playing a positioning role. Through the installation of the protective pads 305, it plays a role in increasing friction for anti-slip and anti-wear.

[0049] Specifically, as Figure 5 and Figure 6 shown, at one end of each of the two drive plates 304, a top block 303 is installed. A rubber block 302 is installed at one end of the top block 303. The other end of the top block 303 extends into the drive plate 304. The other end of the top block 303 is slidably connected to the inside of the drive plate 304 through a buffer spring 307. Through the installation of the top block 303, after the placement rack 203 is inserted into the test box 1, the top block 303 drives the drive plate 304 through the buffer spring 307. The buffer spring 307 has elasticity. When the cable is stably clamped, the drive plate 304 cannot move, but the top block 303 can continue to slide against the action of the buffer spring 307, which is beneficial for the placement rack 203 to be installed in place.

[0050] Specifically, as Figure 1 、 Figure 2 、Figure 3 , Figure 8 , Figure 9 and Figure 10 As shown in Figure 9 , Figure 10 , the locking mechanism 4 includes a locking groove 402. Symmetrical locking grooves 402 are provided inside the side plate 201. One end of the locking groove 402 is located outside the placement rack 203. Two symmetrical limiting rods 403 are slidably connected inside the side wall at one end of the placement rack 203. The opposite ends of the two limiting rods 403 extend outside the placement rack 203 and are engaged with the locking groove 402. A gear 405 is rotatably connected to the center of the interior at one end of the placement rack 203. The top and bottom of the gear 405 are respectively engaged with symmetrical toothed plates 404. The opposite ends of the two toothed plates 404 are respectively connected to the opposite ends of the two limiting rods 403. The toothed plates 404 are slidably connected to the interior of the placement rack 203 through the limiting rods 403. A torsion knob 401 is rotatably connected to the center of the outside at one end of the placement rack 203. The central axis of the torsion knob 401 extends into the interior of the placement rack 203 and is connected to the gear 405. Through the cooperative installation of the locking groove 402 and the limiting rod 403, it is beneficial to realize the sliding control of the placement rack 203. By rotating the torsion knob 401, it is beneficial for the gear 405 to drive the two symmetrical toothed plates 404 to move in opposite directions. The two toothed plates 404 control the contraction of the two limiting rods 403, facilitating the insertion of the placement rack 203 into the interior of the test box 1. By rotating the torsion knob 401 again, the two toothed plates 404 respectively drive the two limiting rods 403 to insert into the locking groove 402, thereby realizing the limitation between the placement rack 203 and the test box 1.

[0051] Specifically, as Figure 10 shown, the positioning mechanism 5 includes a groove 501. Two grooves 501 distributed at 90 degrees are provided on the central axis of the torsion knob 401. A convex block 502 is installed inside the side wall at one end of the placement rack 203. The convex block 502 is slidably connected to the interior of the placement rack 203 through a resisting spring 503. The bottom of the convex block 502 is of a hemispherical structure. The bottom of the convex block 502 abuts against the interior of one of the grooves 501. Through the opening of the groove 501, under the resistance of the resisting spring 503, the bottom of the convex block 502 is inserted into the groove 501 to realize the limitation of the torsion knob 401 without loosening. By rotating the torsion knob 401 with a certain torque, since the bottom of the convex block 502 on the torsion knob 401 is of a hemispherical structure, the bottom of the convex block 502 is resisted by the groove 501, and the convex block 502 contracts against the elastic force of the resisting spring 503, facilitating the rotation of the torsion knob 401 by 90 degrees. At the same time, the convex block 502 abuts against and is limited by another groove 501 under the resistance of the resisting spring 503, ensuring that the rotation of the torsion knob 401 by 90 degrees can be limited.

[0052] Specifically, as Figure 3 andFigure 4 As shown, the sealing mechanism 6 includes a sealing ring 601. The sealing ring 601 is installed on the outer side wall of one end of the placement rack 203. The sealing ring 601 is of a frame structure. The outer side of the sealing ring 601 abuts against the inner wall of the side plate 201. Through the installation of the sealing ring 601, after the placement rack 203 is inserted stably, the outer side of the sealing ring 601 fits with the side plate 201, playing a role in sealing and ensuring that the internal pressure of the test chamber 1 will not be lost.

[0053] Specifically, as Figure 11 shown, two air bags 603 are slidably connected inside one end of the placement rack 203. The two air bags 603 are respectively communicated with both ends of the sealing ring 601. Opposite sides of the two air bags 603 are respectively connected with push plates 602. The push plates 602 are slidably connected inside the placement rack 203. One ends of the two push plates 602 are respectively vertically connected with two limiting rods 403. Through the connection between the two air bags 603 and the sealing ring 601, it is beneficial to store excess gas. After the placement rack 203 is inserted stably into the test chamber 1, by driving and locking the limiting rods 403, the two limiting rods 403 drive the two push plates 602 to squeeze the two air bags 603, so that the gas inside the air bags 603 enters the sealing ring 601. The sealing ring 601 expands and fits tightly with the inner wall of the side plate 201, resulting in a good sealing effect. When the limit is released, the air bags 603 are reset without extrusion, and the sealing ring 601 returns to its original state, facilitating the extraction of the placement rack 203 and the test chamber 1.

[0054] Specifically, as Figure 4 and Figure 7 shown, the holding mechanism 7 includes a storage groove 701. The storage grooves 701 are provided at the top of both sides of the placement rack 203. A sliding plate 703 is arranged inside the storage groove 701. The sliding plate 703 is slidably connected inside the storage groove 701 through a plurality of compression springs 704. Handles 702 are respectively installed at the tops of the two sliding plates 703. The handles 702 are slidably connected with the storage groove 701 through the sliding plates 703. The two ends of the top of the handle 702 are of an arc structure. Through the opening of the storage groove 701, it is beneficial to install the sliding plate 703 and the handle 702. Under the resistance of the compression springs 704, the handle 702 extends to the top of the placement rack 203, facilitating the lifting and moving of the placement rack 203. When the placement rack 203 is inserted into the test chamber 1, the handle 702 is abutted and squeezed by the side plate 201, realizing that the handle 702 drives the sliding plate 703 to contract against the elastic force of the compression springs 704, and further hiding the handle 702, so that no position needs to be reserved for the handle 702 when the placement rack 203 slides inside the test chamber 1.

[0055] A pressure test device and method for a cable insulating material, comprising the following steps:

[0056] S1: First, cut multiple cables of different thicknesses to a certain length, then drive the locking mechanism 4 to release the limit of the feeding mechanism 2, and then pull out the feeding mechanism 2 by sliding;

[0057] S2: After the feeding mechanism 2 is pulled out to a certain position, the holding mechanism 7 pops out, which is convenient to cooperate with the holding mechanism 7 to take out the feeding mechanism 2 and place it on the workbench. At this time, the clamping mechanism 3 is opened without external force resistance;

[0058] S3: Then, put the two ends of the cables of different thicknesses on the clamping mechanism 3, and then insert the feeding mechanism 2 into the test box 1. After the feeding mechanism 2 is inserted in place, the clamping mechanism 3 clamps the two ends of the multiple cables, and at the same time drives the locking mechanism 4 to limit the feeding mechanism 2, so as to realize the pressure test work;

[0059] S4: At the same time, when the locking mechanism 4 is driven, it drives the sealing mechanism 6 to work, so that the sealing between the feeding mechanism 2 and the test box 1 is tight, ensuring the pressure environment of the test box 1 and making the cable test effect better.

[0060] When the present invention is in use, firstly, the detachable installation of the side panel 201 facilitates the subsequent disassembly and maintenance of the interior of the test box 1. The sliding connection between the placement rack 203 and the test box 1 facilitates the placement of cables after the placement rack 203 is pulled out, and the operation is convenient and safe. At the same time, multiple cables can be placed. With the cooperation of the cross bar 207, it is convenient to drag the cables and prevent them from being deformed, which is convenient for subsequent testing. The installation of the two handles 204 facilitates the pulling and control of the placement rack 203, which is convenient for operation. The installation of the protective net 208 facilitates the access to debris generated during cable testing, which is convenient for subsequent cleaning. The installation of the sealing pad 206 facilitates the good sealing of the side panel 201 after installation, and the frame structure of the placement rack 203 is designed The design is convenient for cable placement detection. By installing the driving plate 304, under the resistance of the reset spring 306, the driving plate 304 drives the multiple clamping blocks 301 to slide, thereby increasing the distance between the two symmetrical clamping blocks 301, which is convenient for placing the two ends of the tested cable. After the placement rack 203 is inserted into the test box 1, the two driving plates 304 on the placement rack 203 are resisted by the inner wall of the test box 1, and the driving plate 304 is freed from the elastic force of the reset spring 306 and contracts, thereby causing the driving plate 304 to drive the clamping blocks 301 to clamp the cable ends. The clamping of the two clamping blocks 301 on the cable ensures that the cable is placed stably and will not loosen. The design of the arc structure on one side of the clamping block 301 is conducive to the two clamping blocks 301 being able to stably clamp the cable, so that the cable can be placed stably. The cable will not slip when clamped, which plays a role in positioning. The installation of the protective pad 305 increases the friction, prevents slipping and wear. The installation of the top block 303 facilitates the insertion of the placement rack 203 into the test box 1. The top block 303 drives the drive plate 304 through the buffer spring 307. The buffer spring 307 is retractable. When the cable is clamped stably, the drive plate 304 cannot move, but the top block 303 can continue to slide under the action of the buffer spring 307, which is conducive to the placement rack 203 being installed in place. The coordinated installation of the locking groove 402 and the limit rod 403 is conducive to the sliding control of the placement rack 203. By turning the knob 401, the gear 405 drives the two symmetrical tooth plates 404 to move in the opposite direction. , the two tooth plates 404 control the two limit rods 403 to retract, so that the placement rack 203 is inserted into the test box 1. By turning the knob 401 again, the two tooth plates 404 respectively drive the two limit rods 403 to insert into the locking groove 402, thereby realizing the limit between the placement rack 203 and the test box 1. Through the opening of the groove 501, under the resistance of the resistance spring 503, the bottom of the protrusion 502 is inserted into the groove 501, so that the limit of the knob 401 will not loosen. The knob 401 is rotated by a certain torque. Since the bottom of the protrusion 502 on the knob 401 is a hemispherical structure, the bottom of the protrusion 502 is resisted by the groove 501, and the protrusion 502 is freed from the elastic force of the resistance spring 503 and shrinks, so that the knob 401 can be rotated 90 degrees.Meanwhile, the bump 502 abuts against another groove 501 under the abutment of the abutting spring 503 to limit the position, ensuring that the rotation of the torsion 401 by 90 degrees can be limited. Through the installation of the sealing ring 601, after the placement rack 203 is inserted stably, the outer side of the sealing ring 601 fits with the side plate 201, playing a sealing role and ensuring that the internal pressure of the test chamber 1 will not be lost. Through the connection of the two air bags 603 and the sealing ring 601, it is beneficial to store the excess gas. After the placement rack 203 is inserted stably into the test chamber 1, by driving and locking the limit rod 403, the two limit rods 403 drive the two push plates 602 to squeeze the two air bags 603, so that the gas inside the air bags 603 enters the sealing ring 601, and the sealing ring 601 expands and fits tightly with the inner wall of the side plate 201, resulting in a good sealing effect. When the limit is released, the air bags 603 are reset without extrusion, and the sealing ring 601 returns to its original state, facilitating the extraction of the placement rack 203 and the test chamber 1. Through the opening of the storage groove 701, it is beneficial to install the sliding plate 703 and the handle 702. Under the abutment of the compression spring 704, the handle 702 extends to the top of the placement rack 203, facilitating the lifting and moving of the placement rack 203. When the placement rack 203 is inserted into the test chamber 1, the handle 702 is abutted and squeezed by the side plate 201, realizing that the handle 702 drives the sliding plate 703 to contract against the elastic force of the compression spring 704, and then hiding the handle 702, so that there is no need to reserve a position for the handle 702 when the placement rack 203 slides inside the test chamber 1.,

[0061] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.,

[0062] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.,

Claims

1. A pressure test device for cable insulation material, characterized in that: The test box (1) comprises a material discharging mechanism (2) installed on the test box (1), a clamping mechanism (3) installed on the material discharging mechanism (2), a locking mechanism (4) installed on the material discharging mechanism (2), a positioning mechanism (5) installed on the material discharging mechanism (2), a sealing mechanism (6) installed on the material discharging mechanism (2), and a holding mechanism (7) installed on the material discharging mechanism (2); The material discharging mechanism (2) comprises a side plate (201), one side of the test box (1) is detachably connected to the side plate (201) via a plurality of bolts (202), two sides of the interior of the test box (1) are provided with card slots (205), the inner side of the test box (1) is slidably connected to a placement rack (203) via the card slots (205), one end of the placement rack (203) extends to the outside of the side plate (201), the placement rack (203) is slidably connected to the side plate (201), and the placement rack (203) is connected to a plurality of equidistantly distributed cross bars (207); The clamping mechanism (3) comprises a clamping block (301), and a plurality of groups of symmetrically distributed clamping blocks (301) are respectively installed at both ends of the placement rack (203), and two symmetrical clamping blocks (301) form a group. Among the plurality of groups of clamping blocks (301), one of the clamping blocks (301) is fixedly connected to the placement rack (203), and another clamping block (301) is slidably connected to the placement rack (203). A driving plate (304) is slidably connected inside the two ends of the placement rack (203) via a return spring (306), and one end of the driving plate (304) extends to the outside of the placement rack (203), wherein one side of the plurality of slidable clamping blocks (301) is fixedly connected to one side of the driving plate (304).

2. A pressure test device for cable insulation materials according to claim 1, characterized in that: Two handles (204) are installed on the outside of one end of the placement rack (203), and a protective net (208) is installed at the bottom of the placement rack (203), and the protective net (208) is located at the bottom of the plurality of cross bars (207).

3. A pressure test device for cable insulation materials according to claim 1, characterized in that: A sealing gasket (206) is installed at one edge of the side plate (201), the sealing gasket (206) contacts the outside of the test box (1), and the placement rack (203) is a frame-type structure.

4. A pressure test device for cable insulation materials according to claim 1, characterized in that: One side of the clamping block (301) is an arc-shaped structure, and two symmetrical opposite sides of the clamping blocks (301) are respectively installed with protective pads (305), and the protective pads (305) are also an arc-shaped structure.

5. A pressure test device for cable insulation materials according to claim 1, characterized in that: One end of each of the two driving plates (304) is respectively provided with a top block (303), one end of each of the top blocks (303) is provided with a rubber block (302), the other end of each of the top blocks (303) extends into the interior of the driving plate (304), and the other end of each of the top blocks (303) is slidably connected to the interior of the driving plate (304) via a buffer spring (307).

6. A pressure test device for cable insulation materials according to claim 1, characterized in that: The locking mechanism (4) comprises a locking groove (402), a symmetrical locking groove (402) is provided inside the side plate (201), one end of the locking groove (402) is located outside the placement rack (203), two symmetrical limiting rods (403) are slidably connected inside the side wall at one end of the placement rack (203), the two limiting rods (403) extend at opposite ends to the outside of the placement rack (203) and engage with the locking groove (402), and a gear (403) is connected to the center of the inner part of one end of the placement rack (203). 05), the top and bottom ends of the gear (405) are respectively meshed with symmetrical tooth plates (404), the opposite ends of the two tooth plates (404) are respectively connected to the opposite ends of two limit rods (403), the tooth plate (404) is slidably connected to the inside of the placement rack (203) through the limit rods (403), and a toggle (401) is rotatably connected at the center of the outer side of one end of the placement rack (203), and the central axis of the toggle (401) extends to the inside of the placement rack (203) and is connected to the gear (405).

7. A pressure test device for cable insulation materials according to claim 6, characterized in that: The positioning mechanism (5) comprises a groove (501), and two grooves (501) are arranged on the central axis of the toggle (401) and are distributed at 90 degrees. A protrusion (502) is installed inside the side wall of one end of the placement rack (203), and the protrusion (502) is slidably connected to the inside of the placement rack (203) through a resistance spring (503). The bottom of the protrusion (502) is a hemispherical structure, and the bottom of the protrusion (502) is in resistance with the inside of one of the grooves (501).

8. A pressure test device for cable insulation materials according to claim 7, characterized in that: The sealing mechanism (6) comprises a sealing ring (601), and a sealing ring (601) is installed on the outer wall of one end of the placement rack (203). The sealing ring (601) is a frame-type structure, and the outer side of the sealing ring (601) contacts the inner wall of the side plate (201). Two air bags (603) are slidably connected to the inside of one end of the placement rack (203), and the two air bags (603) are respectively connected to the two ends of the sealing ring (601). Push plates (602) are respectively connected to the opposite sides of the two air bags (603), and the push plates (602) are slidably connected to the inside of the placement rack (203). One end of the two push plates (602) is respectively vertically connected to two limit rods (403).

9. A pressure test device for cable insulation materials according to claim 1, characterized in that: The holding mechanism (7) comprises a storage groove (701), the top of both sides of the placement rack (203) are provided with a storage groove (701), a slide plate (703) is provided inside the storage groove (701), the slide plate (703) is slidably connected with the inside of the storage groove (701) through a plurality of compression springs (704), and handles (702) are respectively installed on the top of the two slide plates (703), the handles (702) are slidably connected with the storage groove (701) through the slide plates (703), and the two ends of the top of the handles (702) are arc-shaped structures.

10. A method for a pressure test device for cable insulation materials according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: First, a plurality of cables of different thicknesses are cut to a certain length, and then the locking mechanism (4) is driven to release the limit of the discharge mechanism (2), and then the discharge mechanism (2) is pulled out to slide out; S2: After the material discharging mechanism (2) is pulled out to a certain position, the holding mechanism (7) pops out, so that the material discharging mechanism (2) can be taken out and placed on the work surface in cooperation with the holding mechanism (7). At this time, the clamping mechanism (3) is opened without external force resistance; S3: The two ends of the cables of different thicknesses are then placed on the clamping mechanism (3), and the feeding mechanism (2) is then inserted into the test box (1). After the feeding mechanism (2) is inserted into place, the clamping mechanism (3) clamps the two ends of the plurality of cables, and at the same time drives the locking mechanism (4) to limit the feeding mechanism (2), thereby realizing the pressurized test. S4: When the locking mechanism (4) is driven, the sealing mechanism (6) is driven to work, so that the discharge mechanism (2) and the test box (1) are tightly sealed, thereby ensuring the pressure environment of the test box (1) and achieving a better cable test effect.

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