Cable intermediate joint and terminal dual-purpose test tool

Abstract

The utility model relates to the technical field of cable testing, and provides a cable intermediate joint and terminal dual-purpose testing tool which comprises a steel frame. The steel frame is provided with a product clamp used for carrying out butt joint on two cables, a cable clamp used for carrying out detachable locking on an experiment cable, an object placing assembly used for carrying out neat placement on the cables and a connecting hardware fitting arranged in the middle of the inner side of the product clamp. The device is convenient to move and arrange, can be operated by a single person, is suitable for detecting cable intermediate joints of various cable specifications, takes out products in a pneumatic mode, saves labor, is high in efficiency, improves the installation convenience in the product detection process, avoids the detection problem caused by inconsistency of manual operation, improves the taking-out efficiency after product detection, and improves the detection efficiency. The cable intermediate joint detection clamp can be applied to cable intermediate joint detection of various cable specifications, is suitable for cables of various specifications and products of various specifications, is wide in application range, and has very high use value.

Description

Technical Field

[0001] The present invention relates to the technical field of cable testing, and in particular to a dual-purpose testing tool for a cable intermediate joint and a terminal. Background Art

[0002] The cable intermediate joint refers to the accessory that connects two cables to form a continuous circuit. The cable intermediate joint is composed of an inner shielding tube, stress cones at both ends, an insulating layer, and an outer conductive shielding layer. The inner shielding tube plays the role of shielding the electric field, the stress cone plays the role of balancing the electric field, the insulating layer plays the role of insulation recovery, and the outer shielding plays the role of restoring the cable shielding layer. The shielding tube, outer shielding, and stress cone are all made of semi-conductive silicone rubber or EPDM rubber materials, with good conduction performance and elasticity; the insulator is made of insulating silicone rubber or EPDM rubber materials, with good insulation performance and elasticity. The installation process of the intermediate joint is roughly divided into four steps: processing the cable to the appropriate size, crimping the wire core, installing the intermediate head, and restoring the grounding layer.

[0003] The cable terminal is a device installed at the end of the cable to ensure the connection with the electrical equipment in other parts of the system and to maintain insulation to the connection point. The cable terminal consists of an inner insulator and a stress cone. The stress cone plays the role of balancing the electric field, and the insulation layer plays the role of insulation recovery and increasing the creepage distance. The cable terminal installation process is roughly divided into processing the cable to the appropriate size, installing the terminal, and restoring the ground layer.

[0004] Electrical performance testing: During product development, improvement or factory testing, a large number of electrical performance tests will be conducted on the product, mainly partial discharge (apply voltage to observe whether discharge occurs) and power frequency withstand voltage test (apply high voltage for a certain period of time to observe whether product breakdown and creepage occur). The commonly used testing method is to purchase high-voltage cables of appropriate specifications and strip them for product testing. Two sections of cable are placed on a rack, and two people operate to install the middle joint on the cable and connect the high-voltage equipment for power-on testing.

[0005] However, the existing cable intermediate joint and terminal testing work still has the following shortcomings:

[0006] 1. There are many cable specifications and test products. The cables and methods of the test connector terminals are not fixed. It is common for a single product to be used with multiple cables, resulting in a waste of resources.

[0007] 2. During the experiment, the cables are placed randomly, and the cables are bent or misaligned. Cable breakdown often occurs due to cable test environment problems.

[0008] 3. The traditional testing process is time-consuming and labor-intensive, requiring multiple people to operate. When the number of products to be tested is large, the efficiency is low;

[0009] 4. In the traditional detection process, the grounding installation process is manually calibrated during each test, and each operator has different operating methods, which often leads to grounding problems or corona at the high-voltage end, affecting the detection efficiency;

[0010] 5. It is laborious to take the products manually. Summary of the invention

[0011] The present invention proposes a dual-purpose testing tool for cable intermediate joints and terminals, which solves the problems in the related art that the existing cable intermediate joints and terminals are prone to waste of resources, cable breakdown due to cable test environment problems, the detection process is time-consuming and labor-intensive, requires multiple people to operate, and has low efficiency.

[0012] The technical solution of the present invention is as follows: a cable intermediate joint and terminal dual-purpose test tool, comprising: a steel frame and universal wheels arranged at the four corners of the bottom of the steel frame, an experimental cable is placed on the steel frame, an intermediate joint and a terminal made of silicone rubber are connected to the experimental cable, a fixing plate is fixed at the four corners of the top of the steel frame, a cylinder body is fixedly installed on each of the fixing plates, the tails of two adjacent cylinder bodies on the left and right are butt-jointed, the front and rear adjacent cylinder bodies are parallel to each other, and the push rods on the front and rear adjacent cylinder bodies are commonly provided with a cable clamp for detachably locking the experimental cable;

[0013] A product clamp is commonly provided between the four cylinder bodies for docking two cables;

[0014] A storage component is provided inside the steel frame for placing and restraining the cables;

[0015] A connecting hardware is installed at the experimental cable core located at the middle joint, and the connecting hardware is centrally arranged on the inner side of the product fixture.

[0016] Preferably, the connecting hardware includes a first connecting block and a second connecting block, both of which are provided with countersunk screw holes, the experimental cable extends into the interior of the connecting block, and the experimental cable and the connecting block are fixed by extrusion through the countersunk screw holes and countersunk screws.

[0017] Preferably, a boss with a taper is connected to one end of the first connecting block, a groove for inserting the boss is opened at one end of the second connecting block, a connecting spring is arranged inside the groove, and a copper sheet is spot-welded on the connecting spring.

[0018] Preferably, the product fixture includes two fixture positioning blocks fixed to the cylinder body, a lower block is arranged between the two fixture positioning blocks, the two fixture positioning blocks are connected to the lower block by positioning bolts, an upper clamping plate is arranged above the lower block, a fastening bolt is connected between the upper clamping plate and the lower block, a support spring is connected between the upper clamping plate and the top of the fastening bolt, and the support spring is sleeved on the outside of the fastening bolt.

[0019] Preferably, the cable clamp includes a fixed seat and a disassembly seat mounted on the fixed seat, an elliptical clamping groove is formed between the fixed seat and the disassembly seat, an anti-slip silicone pad is bonded to the inner wall of the clamping groove, and two cylinder push rod fixing holes that cooperate with the push rod on the cylinder body are symmetrically provided on the fixed seat, and the push rod on the cylinder body and the fixed seat are detachably fixedly connected by a nut.

[0020] Preferably, two clamp fastening holes are formed through the fixing seat and the disassembling seat, the central axes of the clamp fastening holes on the fixing seat and the disassembling seat coincide with each other, and cable grounding points are provided on both sides of the fixing seat.

[0021] Preferably, a tooling grounding plate is welded on the steel frame.

[0022] Preferably, the storage assembly includes two storage plates arranged in parallel, the two storage plates are welded and fixed to the steel frame, cable slots are provided on both sides of the top of the two storage plates for placing experimental cables, a plurality of braided straps are provided on the storage plates, a plurality of groups of strap adjustment holes are provided on the braided straps, and strap buckles matching the strap adjustment holes are provided on both sides of the storage plates.

[0023] Preferably, a pressure equalizing cover is sleeved on one end of the cable core of the experimental cable, and the pressure equalizing cover is a spherical metal.

[0024] Preferably, a grounding wire is fastened to the grounding point of the cable ground wire by means of bolts, and the grounding wire and the experimental cable are clamped by means of a constant force spring.

[0025] The working principle and beneficial effects of the present invention are:

[0026] In the present invention, a product clamp for docking two cables, a cable clamp for detachably locking an experimental cable, a storage component for neatly placing cables, and a connecting hardware centrally arranged on the inner side of the product clamp are arranged on the steel frame. The present invention can integrate the components required for detection on a tool, which is convenient for movement and arrangement, can be operated by a single person, and is suitable for the detection of cable intermediate joints of various cable specifications. The product is taken out pneumatically, which is labor-saving and highly efficient. While improving the detection efficiency, the installation convenience of the product detection process is improved, the detection problems caused by inconsistency in human operation are avoided, and the efficiency of taking out the product after detection is improved. The storage component is equipped, which is convenient for moving and arranging cables and tools, and can be suitable for the detection of cable intermediate joints of various cable specifications. The clamp is suitable for cables of various specifications and products of various specifications, has a wide range of applications, and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of a cable intermediate joint and terminal dual-purpose test tool proposed by the present invention;

[0029] Figure 2 This is a schematic diagram of the side structure of a cable intermediate joint and terminal dual-purpose test tool proposed by the present invention;

[0030] Figure 3 This is a schematic diagram of the main structure of a cable intermediate joint and terminal dual-purpose test tool proposed by the present invention;

[0031] Figure 4 This is a schematic diagram of the top view of a cable intermediate joint and terminal dual-purpose test tool proposed by the present invention;

[0032] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection hardware proposed by the present invention;

[0033] Figure 6 This is a schematic diagram of the assembly structure of the connection hardware proposed by the present invention;

[0034] Figure 7 This is a schematic diagram of the fixing seat assembly structure proposed by the present invention;

[0035] Figure 8 This is a schematic diagram of the product fixture assembly structure proposed by the present invention;

[0036] Fig. 9 This is a schematic diagram of the assembly structure of the storage assembly proposed by the present invention;

[0037] Fig.10 This is a schematic diagram of the cross-sectional structure of the intermediate joint proposed by the present invention;

[0038] Fig.11 This is a schematic diagram of the cross-sectional structure of the terminal proposed by the present invention;

[0039] In the figure: 1. Intermediate joint; 2. Terminal; 3. Experimental cable; 4. Product fixture; 41. Support spring; 42. Fastening bolt; 43. Fixture positioning block; 44. Positioning bolt; 45. Upper clamp; 46. Lower block; 5. Cable fixture; 51. Grounding point of cable ground wire; 52. Cylinder push rod fixing hole; 53. Anti-slip silicone pad; 54. Fixture fastening hole; 55. Disassembly seat; 56. Fixed seat; 6. Universal wheel; 7. Tooling grounding plate ;8. Storage assembly;81. Cable slot;82. Strap buckle;83. Braided strap;84. Strap adjustment hole;85. Storage plate;9. Cylinder body;10. Pressure equalizing cover;11. Steel frame;12. Grounding wire;13. Connecting hardware;131. First connecting block;132. Second connecting block;133. Copper sheet;134. Connecting spring;135. Countersunk screw hole;136. Boss;137. Groove;14. Fixing plate. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Fig.10 as well as Fig.11 A cable intermediate joint and terminal dual-purpose test tool, comprising: a steel frame 11 and universal wheels 6 arranged at the four corners of the bottom of the steel frame 11, the universal wheels 6 are connected to the steel frame 11 by bolts or welding, and the universal wheels 6 have a locking function, a test cable 3 is placed on the steel frame 11, an intermediate joint 1 and a terminal 2 made of silicone rubber are connected to the test cable 3, the product material is silicone rubber, and the test product shrinks on the test cable 3 through rubber elasticity. Specifically, the support strip a wound inside the intermediate joint 1 is used to support and expand the intermediate joint 1, and similarly, a support strip b is wound inside the terminal 2 to support and expand the terminal 2.

[0042] A tooling grounding plate 7 is welded on the steel frame 11. A pressure equalizing cover 10 is sleeved on one end of the cable core of the experimental cable 3, and the pressure equalizing cover 10 is a spherical metal. A fixing plate 14 is fixed at the four corners of the top of the steel frame 11, and a cylinder body 9 is fixedly installed on each fixing plate 14. The tails of the two adjacent cylinder bodies 9 on the left and right are butted, and the two adjacent cylinder bodies 9 on the front and back are parallel to each other. A cable clamp 5 is commonly provided on the push rods on the two adjacent cylinder bodies 9 on the front and back, which is used to detachably lock the experimental cable 3.

[0043] Specifically, the cable clamp 5 includes a fixed seat 56 and a disassembly seat 55 mounted on the fixed seat 56, an elliptical clamping groove is formed between the fixed seat 56 and the disassembly seat 55, a non-slip silicone pad 53 is bonded to the inner wall of the clamping groove, two cylinder push rod fixing holes 52 that match the push rod on the cylinder body 9 are symmetrically opened on the fixed seat 56, and the push rod on the cylinder body 9 and the fixed seat 56 are detachably fixedly connected by nuts. Two clamp fastening holes 54 are opened on both the fixed seat 56 and the disassembly seat 55, and the central axes of the clamp fastening holes 54 on the fixed seat 56 and the disassembly seat 55 coincide, and cable grounding points 51 are set on both sides of the fixed seat 56. The grounding wire 12 is fastened to the cable grounding point 51 by bolts, and the grounding wire 12 and the experimental cable 3 are clamped by a constant force spring.

[0044] Furthermore, when the cable clamp 5 is in use, the test cable 3 is placed in the clamping groove formed between the disassembly seat 55 and the fixed seat 56. Then, the disassembly seat 55 and the fixed seat 56 are locked by bolts so that cables of different specifications can be locked. The anti-slip silicone pad 53 is used to protect the test cable 3. Then, by controlling the movement of the cylinder body 9, the two test cables 3 are brought close to each other so that they are connected in opposite directions to form a test cable. The two ends of the test cable are cable terminals 2. The cable terminal 2 on one side is installed with a pressure equalizing cover 10, and the cable terminal 2 on the other side is connected to the high-voltage generating end of the test equipment, and the tooling grounding plate 7 is connected to the ground wire of the test equipment.

[0045] See also Figure 1 , Figure 3 as well as Figure 8 A product fixture 4 is commonly provided between the four cylinder bodies 9 for docking two cables. The product fixture 4 includes two fixture positioning blocks 43 fixed to the cylinder body 9, a lower block 46 is provided between the two fixture positioning blocks 43, both of the two fixture positioning blocks 43 are connected to the lower block 46 through positioning bolts 44, an upper clamping plate 45 is provided above the lower block 46, a fastening bolt 42 is connected between the upper clamping plate 45 and the lower block 46, a support spring 41 is connected between the upper clamping plate 45 and the top of the fastening bolt 42, and the support spring 41 is sleeved on the outside of the fastening bolt 42.

[0046] Furthermore, when the product clamp 4 is in use, the intermediate joint 1 is placed in the clamping groove between the upper clamping plate 45 and the lower stopper 46. By screwing the fastening bolt 42, the fastening bolt 42 moves up and down, and the upper clamping plate 45 is pulled up or pressed down by the support spring 41, so that the intermediate joint 1 can be limitedly clamped by the upper clamping plate 45 and the lower stopper 46. The clamping force can be adjusted by controlling the compression amount of the support spring 41, and the original positioning can be maintained after the support strip a wrapped inside the intermediate joint 1 is pulled away. The fastening bolts 42 and the compression support spring 41 on the product clamp 4 are adjusted so that when the product retracts, the clamp can still clamp the product to ensure that the product will not shift. The clamp is made of conductive material and plays the role of connecting the outer shielding ground of the product. The lower stopper 46 is connected to the clamp positioning block 43 by bolts, and the centering degree of the product can be adjusted according to the different cross-sections of the product, so that the intermediate joint 1 and the experimental cable 3 are coaxially aligned.

[0047] See also Figure 1 , Figure 3 as well as Fig. 9 A storage assembly 8 is provided inside the steel frame 11 for placing and restraining the cables. The storage assembly 8 includes two storage plates 85 arranged in parallel, the two storage plates 85 are welded and fixed to the steel frame 11, and both sides of the top of the two storage plates 85 are provided with cable slots 81 for placing the experimental cables 3, and a plurality of braided straps 83 are provided on the storage plates 85, and a plurality of groups of strap adjustment holes 84 are provided on the braided straps 83, and strap buckles 82 matching the strap adjustment holes 84 are provided on both sides of the storage plates 85.

[0048] Specifically, the cable slots 81 provided on both sides of the top of the two storage plates 85 can limit the position of the cables, so that the cables can be neatly placed. Under the action of the strap buckle 82 and the strap adjustment hole 84, the braided strap 83 can be fixed and constrained by fastening the strap buckle 82 and the strap adjustment hole 84, so that the braided strap 83 can wrap and limit the upper side of the cable placed on the cable slot 81. When the strap buckle 82 is fastened with different strap adjustment holes 84, the tightness of the braided strap 83 can be adjusted.

[0049] See also Figure 4 , Figure 5 as well as Figure 6A connecting hardware 13 is installed at the core of the experimental cable 3 located at the middle joint 1, and the connecting hardware 13 is centrally arranged on the inner side of the product fixture 4. The connecting hardware 13 includes a first connecting block 131 and a second connecting block 132, and countersunk screw holes 135 are provided on the first connecting block 131 and the second connecting block 132. The experimental cable 3 extends to the inside of the connecting block, and the experimental cable 3 and the connecting block are fixed by extrusion through the countersunk screw holes 135 and the countersunk screws. A boss 136 with a taper is connected to one end of the first connecting block 131, and a groove 137 for inserting the boss 136 is provided at one end of the second connecting block 132. A connecting spring 134 is provided inside the groove 137, and a copper sheet 133 is spot-welded on the connecting spring 134.

[0050] Specifically, the connection fitting 13 is centered on the product fixture 4 to lock the test cable 3. The setting of the boss 136 at the end of the first connection block 131 facilitates the matching with the groove 137 on the second connection block 132 when the cable is axially connected. The function of the connection spring 134 and the copper sheet 133 is to make the first connection block 131 and the second connection block 132 closely connected without virtual connection. The grounding wire 12 on the test cable 3 is connected to the cable grounding point 51 on the cable fixture 5 by using bolts.

[0051] Working principle and use process: prepare two test cables 3, install the connection hardware 13 on the core of the test cable 3 located at the middle joint 1, use the countersunk screw to lock, and pass the two test cables 3 through the two cable clamps 5 to connect the two test cables 3 oppositely. Specifically, place the test cable 3 in the clamping groove formed between the disassembly seat 55 and the fixed seat 56, and then lock the disassembly seat 55 and the fixed seat 56 with bolts so that it can lock cables of different specifications. The non-slip silicone pad 53 is used to protect the test cable 3. Then, by controlling the movement of the cylinder body 9, the two test cables 3 are brought close to each other so that they are connected oppositely to form a test cable. The two ends of the test cable are cable terminals 2. The cable terminal 2 on one side is installed with a voltage equalizing cover 10, and the cable terminal 2 on the other side is connected to the high-voltage generating end of the test equipment. The tooling grounding plate 7 is connected to the ground wire of the test equipment.

[0052] The connection fitting 13 is centered on the product fixture 4, locking the test cable 3. The setting of the boss 136 at the end of the first connection block 131 facilitates the matching with the groove 137 on the second connection block 132 when the cable is axially connected. The function of the connection spring 134 and the copper sheet 133 is to make the first connection block 131 and the second connection block 132 closely connected, without virtual connection. The grounding wire 12 on the test cable 3 is connected to the cable grounding point 51 on the cable fixture 5 with bolts.

[0053] Control the external air pipe switch, extend the push rod of the cylinder body 9, and fix the intermediate joint 1 on the product fixture 4 in the center. Specifically, place the intermediate joint 1 in the clamping groove between the upper clamping plate 45 and the lower stopper 46. By screwing the fastening bolt 42, the up and down movement of the fastening bolt 42 will pull up or press down the upper clamping plate 45 through the support spring 41, so that the intermediate joint 1 can be limited and clamped by the upper clamping plate 45 and the lower stopper 46. The clamping force can be adjusted by controlling the compression amount of the support spring 41, and the original positioning can be maintained after the support strip a wrapped inside the intermediate joint 1 is pulled away. Adjust the fastening bolts 42 and the compression support spring 41 on the product fixture 4, so that when the product retracts, the fixture can still clamp the product to ensure that the product will not shift, and the fixture is made of conductive material to connect the outer shielding ground of the product. The lower stopper 46 is connected to the fixture positioning block 43 by bolts, and the centering degree of the product can be adjusted according to the different cross-sections of the product, so that the intermediate joint 1 and the experimental cable 3 are coaxially aligned.

[0054] Control the air pipe switch to retract the push rod of the air cylinder body 9, connect the two test cables 3 through the connecting hardware 13, pull out the support strip a wound inside the middle joint 1, and make the middle joint 1 retract onto the test cable 3 after losing the support of the support strip a. Similarly, pull out the support strip b wound inside the terminal 2, and retract the terminal 2 to the specified position of the test cable 3.

[0055] Afterwards, the test equipment increases the voltage and starts the test. The inspection objects are the intermediate joint 1 and the terminal 2, both of which are rubber products with good elasticity. When the test equipment increases the voltage to the specified parameters, if there is no discharge phenomenon and there is no breakdown flashover phenomenon after the specified unit time, the product is judged to be qualified, and then the product is removed for the next set of tests. The intermediate joint 1 or the terminal 2 can be replaced separately to test two products at the same time. Specifically, control the external air pipe switch, push out the cylinder body 9 push rod, take out the intermediate joint 1, replace the new test sample, and continue to test the next sample. If the terminal 2 needs to be taken out, one end of the terminal 2 can be clamped on the product fixture 4, and the cylinder body 9 can be used to pull out the test cable 3 to take out the product.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-purpose test tool for cable intermediate joints and terminals, comprising: A steel frame (11) and universal wheels (6) arranged at the four corners of the bottom of the steel frame (11), an experimental cable (3) is placed on the steel frame (11), and an intermediate joint (1) and a terminal (2) made of silicone rubber are connected to the experimental cable (3), characterized in that a fixing plate (14) is fixed at the four corners of the top of the steel frame (11), and a cylinder body (9) is fixedly installed on each of the fixing plates (14), the tails of the two adjacent cylinder bodies (9) on the left and right are butted, the front and rear adjacent cylinder bodies (9) are parallel to each other, and the push rods on the front and rear adjacent cylinder bodies (9) are commonly provided with a cable clamp (5) for detachably locking the experimental cable (3); A product clamp (4) is commonly arranged between the four cylinder bodies (9) and is used for docking two cables; A storage assembly (8) is provided inside the steel frame (11) for placing and restraining cables; A connection fitting (13) is installed at the core of the test cable (3) located at the middle joint (1), and the connection fitting (13) is centrally arranged on the inner side of the product fixture (4).

2. A cable intermediate joint and terminal dual-purpose test tool according to claim 1, characterized in that: The connecting hardware (13) comprises a first connecting block (131) and a second connecting block (132), and countersunk screw holes (135) are provided on the first connecting block (131) and the second connecting block (132). The test cable (3) extends into the interior of the connecting block, and the test cable (3) and the connecting block are fixed by extrusion through the countersunk screw holes (135) and countersunk screws.

3. A cable intermediate joint and terminal dual-purpose test tool according to claim 2, characterized in that: A boss (136) with a taper is connected to one end of the first connection block (131), a groove (137) for inserting the boss (136) is opened at one end of the second connection block (132), a connection spring (134) is arranged inside the groove (137), and a copper sheet (133) is spot-welded on the connection spring (134).

4. A cable intermediate joint and terminal dual-purpose test tool according to claim 1, characterized in that: The product fixture (4) comprises two fixture positioning blocks (43) fixedly connected to the cylinder body (9), a lower block (46) being arranged between the two fixture positioning blocks (43), the two fixture positioning blocks (43) being connected to the lower block (46) via positioning bolts (44), an upper clamping plate (45) being arranged above the lower block (46), a fastening bolt (42) being connected between the upper clamping plate (45) and the lower block (46), a supporting spring (41) being connected between the upper clamping plate (45) and the top of the fastening bolt (42), and the supporting spring (41) being sleeved on the outside of the fastening bolt (42).

5. A cable intermediate joint and terminal dual-purpose testing tool according to claim 1, characterized in that: The cable clamp (5) comprises a fixing seat (56) and a disassembling seat (55) mounted on the fixing seat (56); an elliptical clamping groove is formed between the fixing seat (56) and the disassembling seat (55); a non-slip silicone pad (53) is bonded to the inner wall of the clamping groove; two cylinder push rod fixing holes (52) are symmetrically provided on the fixing seat (56) and are matched with the push rod on the cylinder body (9); the push rod on the cylinder body (9) and the fixing seat (56) are detachably fixedly connected by a nut.

6. A cable intermediate joint and terminal dual-purpose testing tool according to claim 5, characterized in that: Two clamp fastening holes (54) are provided through the fixing seat (56) and the disassembling seat (55), the central axes of the clamp fastening holes (54) on the fixing seat (56) and the disassembling seat (55) coincide with each other, and cable grounding points (51) are provided on both sides of the fixing seat (56).

7. A cable intermediate joint and terminal dual-purpose test tool according to claim 1, characterized in that: A tooling grounding plate (7) is welded on the steel frame (11).

8. A cable intermediate joint and terminal dual-purpose testing tool according to claim 1, characterized in that: The storage assembly (8) comprises two storage plates (85) arranged in parallel, the two storage plates (85) are welded and fixed to the steel frame (11), both sides of the top of the two storage plates (85) are provided with cable slots (81) for placing the experimental cable (3), a plurality of braided straps (83) are arranged on the storage plates (85), a plurality of groups of strap adjustment holes (84) are arranged on the braided straps (83), and strap buckles (82) matching the strap adjustment holes (84) are arranged on both sides of the storage plates (85).

9. A cable intermediate joint and terminal dual-purpose testing tool according to claim 1, characterized in that: A voltage equalizing cover (10) is sleeved on one end of the cable core of the experimental cable (3), and the voltage equalizing cover (10) is a spherical metal.

10. A cable intermediate joint and terminal dual-purpose testing tool according to claim 6, characterized in that: A grounding wire (12) is fastened to the cable grounding point (51) by means of bolts, and the grounding wire (12) and the test cable (3) are clamped by means of a constant force spring.

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