A quick connection structure for flame retardant cable testing

Abstract

The utility model discloses a quick connection structure for flame retardant cable testing, characterized in that it includes a base and a terminal pressing component; the base is provided with a mounting groove, the left end of the mounting groove is connected to the left side wall of the base, and the front top of the base is provided with a cable clearance groove connected to the mounting groove; the terminal is detachably clamped in the mounting groove, the top of the terminal is provided with a cable power connection component, and the pressing component is arranged directly above the cable power connection component; the right side wall of the mounting groove is provided with a metal terminal, so the right end of the terminal is provided with a plug hole, a plug terminal matching the metal terminal is provided in the plug hole, the plug terminal is connected to the cable power connection component via a line, the metal terminal is inserted in the plug hole and plug-connected to the plug terminal, and the plug terminal is electrically connected to the metal terminal. The utility model improves the stability and safety of the test.

Description

Technical Field

[0001] The utility model relates to a cable testing device, in particular to a quick connection structure for flame retardant cable testing. Background Art

[0002] Flame-retardant cables refer to cables that, under specified test conditions, can be burned by the sample. After the test fire source is removed, the spread of the flame is limited to a limited range, and the residual flame or residual burning can extinguish itself within a limited time. The basic characteristics are: it may be burned and unable to operate in the event of a fire, but the spread of the fire can be prevented. In layman's terms, if a fire occurs in the wire, the burning can be limited to a local range and prevented from spreading, thus saving various other equipment and avoiding greater losses. Among them, after the flame-retardant cable is produced, it needs to be tested. During the test, both ends of the cable are electrically connected to the test equipment, and then the flame-retardant cable is energized through the test equipment to test its performance.

[0003] For different industries, the ends of flame-retardant cables also have different specifications. Some flame-retardant cable ends are used to be installed in connectors. The ends have cylindrical terminals, flat terminals, and ring terminals. For different terminals, the test equipment generally uses a universal metal boss to make electrical contact with the terminals at the ends of the flame-retardant cables. In this way, the cable end contact is unstable, resulting in unstable and unsafe testing. Summary of the invention

[0004] The utility model aims to provide a quick connection structure for flame retardant cable testing. By using the structure, the same device can be used to quickly position the test of flame retardant cables with different terminals, and the stability and safety of positioning and testing can be ensured.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a quick connection structure for flame retardant cable testing, comprising a base, a terminal disposed on the base, and a pressing component disposed just above the terminal;

[0006] The base is provided with a mounting groove, the left end of which is connected to the left side wall of the base, and the top of the front side of the base is provided with a cable clearance groove connected to the mounting groove;

[0007] The wiring terminal is detachably mounted in the mounting groove, a cable connection component is disposed on the top of the wiring terminal, and the pressing component is disposed directly above the cable connection component;

[0008] A metal terminal is provided on the right side wall of the mounting groove, so a plug-in hole is provided at the right end of the wiring terminal, a plug-in terminal matching the metal terminal is provided in the plug-in hole, the plug-in terminal is connected to the cable power connection component via a line, the metal terminal is inserted in the plug-in hole and plug-connected to the plug-in terminal, and the plug-in terminal is electrically connected to the metal terminal.

[0009] In the above technical solution, the cable clearance groove is arranged directly opposite to the cable power connection component.

[0010] In the above technical solution, the installation slot is an inverted T-shaped structure, and the wiring terminal is detachably clamped in the installation slot.

[0011] In the above technical solution, the cable connection component includes a metal table.

[0012] In the above technical solution, a coaxially arranged metal rod is further provided on the top of the metal table top, and the diameter of the metal rod is smaller than the diameter of the metal table top.

[0013] In the above technical solution, a placement groove is provided on the top of the metal table top, a front end of the placement groove is connected to the front end of the metal table top, and the placement groove is arranged opposite to the cable clearance groove.

[0014] In the above technical solution, the pressing component is an elbow clamp, the rear bottom of the elbow clamp is installed on the base, and an insulating pressing head is provided at the bottom of the elbow clamp. The elbow clamp drives the insulating pressing head to be close to or away from the cable connection component.

[0015] In the above technical solution, the pressing component is installed on the base via a bracket, and the pressing component includes a mounting plate, an insulating pressure rod, a spring, a convex ring and a pulling component. The mounting plate is arranged directly above the cable power connection component, and a through hole is provided on the mounting plate facing the cable power connection component. The middle part of the insulating pressure rod is movably inserted into the through hole, and the convex ring is arranged on the outer surface of the insulating pressure rod below the mounting plate. The pulling component is arranged above the mounting plate and connected to the top of the insulating pressure rod. The spring is sleeved on the outside of the insulating pressure rod, the top of the spring is against the bottom surface of the mounting plate, and the bottom of the spring is against the top surface of the convex ring. The spring pushes the insulating pressure rod to move downward and is close to the cable power connection component.

[0016] In the above technical solution, the width of the pulling component is greater than the diameter of the through hole, and the outer diameter of the convex ring is greater than the diameter of the through hole;

[0017] A screw hole is provided at the bottom of the pulling component, and the pulling component is screwed and connected to the top of the insulating pressure rod through the screw hole;

[0018] The pulling component is provided with a pulling opening.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] 1. The wiring terminal of the utility model can be directly and detachably mounted in the mounting groove, and the electrical connection is realized by quickly plugging the plug-in terminal in the plug-in hole and the metal terminal in the mounting groove. In this way, the cable connection components with different structures can be replaced according to the different terminals at the ends of the flame-retardant cables, so as to realize the fast and stable positioning of the ends of different flame-retardant cables, thereby ensuring the stability and safety during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the first embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 Left view of

[0023] Figure 3 It is a schematic cross-sectional view of the connection between the wiring terminal and the mounting groove in the first embodiment of the utility model;

[0024] Figure 4 It is a schematic cross-sectional structural diagram of the terminal in the second embodiment of the utility model;

[0025] Figure 5 It is a schematic cross-sectional structural diagram of the terminal in the third embodiment of the present utility model.

[0026] Among them: 1. Base; 2. Wiring terminal; 3. Installation slot; 4. Cable clearance slot; 5. Cable connection component; 6. Metal terminal; 7. Plug hole; 8. Plug terminal; 9. Line; 10. Bracket; 11. Installation plate; 12. Insulating pressure rod; 13. Spring; 14. Convex ring; 15. Pulling component; 16. Pull mouth; 17. Insulating pressure piece; 18. Metal rod; 19. Placement slot. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] Example 1: See Figure 1-3 As shown, a quick connection structure for flame retardant cable testing includes a base 1, a terminal 2 arranged on the base 1, and a pressing component arranged just above the terminal 2;

[0029] The base 1 is provided with a mounting groove 3, the left end of the mounting groove 3 is connected to the left side wall of the base 1, and the front top of the base 1 is provided with a cable clearance groove 4 connected to the mounting groove 3;

[0030] The wiring terminal 2 is detachably mounted in the mounting groove 3, a cable connection component 5 is disposed on the top of the wiring terminal 2, and the pressing component is disposed directly above the cable connection component 5;

[0031] A metal terminal 6 is provided on the right side wall of the mounting groove 3, so a plug-in hole 7 is provided at the right end of the wiring terminal 2, and a plug-in terminal 8 matching the metal terminal 6 is provided in the plug-in hole 7, and the plug-in terminal 8 is connected to the cable power connection component 5 via a line 9, and the metal terminal 6 is inserted into the plug-in hole 7 and plug-connected to the plug-in terminal 8, and the plug-in terminal 8 is electrically connected to the metal terminal 6.

[0032] In this embodiment, the terminal is detachably installed in the installation groove, and different terminal has a cable connection component with different structures. When in use, the terminal of the cable end is directly placed on the cable connection component, and the bottom of the pressing component can be close to or away from the cable connection component. The terminal of the cable end is pressed on the cable connection component by the pressing component, and the cable connection component, the circuit and the plug-in terminal are electrically connected with the metal terminal. The metal terminal will be connected with the test equipment through the circuit, so as to realize the test of the cable by the test equipment. If the terminal structure of the cable end to be tested is different, the terminal with the cable connection component that matches the terminal of the cable end is replaced. When replacing, the terminal is directly moved to the left and pushed away from the installation groove. In the process of the terminal moving to the left, its plug-in terminal and plug-in hole will gradually separate from the metal terminal. After separation, continue to move the terminal to the left until the terminal is detached from the installation groove, and then move the replaced terminal to the right and insert it into the installation groove, so that the plug-in hole and plug-in terminal of the terminal are plugged with the metal terminal. After being plugged in place, the right end face of the terminal contacts the right side wall of the installation slot, so that the terminal can be quickly replaced. Then the end of the corresponding cable is directly placed in the cable clearance slot, so that the terminal at the end of the cable is placed on the cable power connection component, and then the terminal at the end of the cable is limited on the cable power connection component by the pressing component, so that the cable can be tested by the test equipment. This method can be applied to different types of cables, has a wide range of applications, and is relatively low in cost, and has better stability and safety during the test process.

[0033] The cable clearance groove is arranged opposite to the cable power connection component, so that the end of the cable can be directly placed in the cable clearance groove, and the terminal of the cable end can be directly placed on the cable power connection component.

[0034] See also Figure 2As shown, the mounting groove is an inverted T-shaped structure, and the wiring terminal is detachably mounted in the mounting groove. The mounting groove adopts an inverted T-shaped structure, and the wiring terminal matches the mounting groove, so that the up and down movement of the wiring terminal can be limited, thereby ensuring that the metal terminal is stably and accurately plugged into the plug terminal. Among them, the wiring terminal is made of insulating material, and the cable connection component and the plug terminal are made of metal conductive material.

[0035] Furthermore, the wiring terminal and the mounting slot are tightly fitted, or the metal terminal and the plug-in terminal are tightly fitted, so that during use, without external force, the wiring terminal will not move to the left and disengage from the mounting slot, preventing the metal terminal and the plug-in terminal from separating, thereby ensuring stability and safety during use.

[0036] See also Figure 1 , 2 As shown, the pressing component is installed on the base 1 through a bracket 10, and the pressing component includes a mounting plate 11, an insulating pressure rod 12, a spring 13, a convex ring 14 and a pulling component 15. The mounting plate 11 is arranged directly above the cable power connection component 5, and the mounting plate 11 is provided with a through hole facing the cable power connection component 5. The middle part of the insulating pressure rod 12 is movably inserted into the through hole, and the convex ring 14 is arranged on the outer surface of the insulating pressure rod 12 below the mounting plate 11. The pulling component 15 is arranged above the mounting plate 11 and connected to the top of the insulating pressure rod 12. The spring 13 is sleeved on the outside of the insulating pressure rod 12, and the top of the spring 13 is against the bottom surface of the mounting plate 11, and the bottom of the spring 13 is against the top surface of the convex ring 14. The spring pushes the insulating pressure rod to move downward and close to the cable power connection component.

[0037] The width of the pulling component 15 is greater than the diameter of the through hole, and the outer diameter of the convex ring 14 is greater than the diameter of the through hole; a screw hole is provided at the bottom of the pulling component 15, and the pulling component 15 is screwed to the top of the insulating pressure rod 12 through the screw hole; a pulling opening 16 is provided on the pulling component 15.

[0038] In this embodiment, when the terminal of the cable needs to be clamped, the staff directly grasps the pull mouth with their hands and applies an upward pulling force to the pulling component, driving the insulating pressure rod and the convex ring to move upward, compressing the spring, so that the bottom of the insulating pressure rod is away from the cable connection component, and then the end of the cable is placed in the cable clearance groove, and the terminal at the end of the cable is placed on the cable connection component, and then the pulling force of the pulling component is released, and the restoring force of the spring pushes the insulating pressure rod downward, so that the insulating pressure rod presses the terminal at the end of the cable on the cable connection component, thereby ensuring stable contact and stable electrical contact between the cable and the cable connection component, and ensuring the stability and safety of subsequent performance tests.

[0039] Among them, in order to ensure the stability and quality of the pressing material, an insulating pressing piece 17 will be set at the bottom of the insulating pressing rod 12. The diameter of the insulating pressing piece is larger than the diameter of the insulating pressing rod. This can increase the contact area with the cable end terminal, ensure the limiting effect of the terminal, and ensure the contact stability between the cable terminal and the cable power connection component.

[0040] See also Figure 1-3 As shown, the cable connection component includes a metal table.

[0041] In this embodiment, the cable electrical connection component is suitable for electrical contact of the terminals of cables with flat, square and strip structures, which can ensure the electrical contact area, stability and safety of the electrical contact.

[0042] At the same time, in the utility model, the base is also made of insulating material to prevent leakage.

[0043] Example 2: See Figure 4 As shown, a quick connection structure for flame retardant cable testing is basically similar to that of the first embodiment, except that a coaxially arranged metal rod 18 is further provided on the top of the metal table, and the diameter of the metal rod is smaller than the diameter of the metal table.

[0044] This structure is suitable for positioning the ring terminal with a hole in the middle. The metal rod is inserted into the hole in the middle of the ring terminal to position the ring terminal to prevent it from shifting. The cable terminal is then pressed onto the metal table by an insulating pressure rod to ensure the limiting quality as well as the stability and safety of the electrical contact.

[0045] Example 3: See Figure 5 As shown, a quick connection structure for flame retardant cable testing is basically similar to that of embodiment 1, except that a placement groove 19 is provided on the top of the metal table top, the front end of the placement groove is connected to the front end of the metal table top, and the placement groove is arranged opposite to the cable clearance groove.

[0046] This terminal is suitable for cable ends with a cylindrical structure. The terminal at the cable end is placed in the placement groove so that most of the cable terminal can contact the placement groove, and then the insulating pressure rod is pressed on the top of the terminal to ensure the stability and safety of the electrical contact.

[0047] Embodiment 4: A quick connection structure for testing flame-retardant cables, the structure of which is basically similar to other embodiments, except that: the pressing component is a toggle clamp, the rear bottom of the toggle clamp is mounted on the base, the bottom of the toggle clamp is provided with an insulating pressing head, and the toggle clamp drives the insulating pressing head to be close to or away from the cable connection component. In this embodiment, the pressing component is a toggle clamp.

Claims

1. A quick connection structure for flame retardant cable testing, characterized in that: It includes a base, a terminal disposed on the base, and a pressing component disposed directly above the terminal; The base is provided with a mounting groove, the left end of which is connected to the left side wall of the base, and the top of the front side of the base is provided with a cable clearance groove connected to the mounting groove; The wiring terminal is detachably mounted in the mounting groove, a cable connection component is disposed on the top of the wiring terminal, and the pressing component is disposed directly above the cable connection component; A metal terminal is provided on the right side wall of the mounting groove, so a plug-in hole is provided at the right end of the wiring terminal, a plug-in terminal matching the metal terminal is provided in the plug-in hole, the plug-in terminal is connected to the cable power connection component via a line, the metal terminal is inserted in the plug-in hole and plug-connected to the plug-in terminal, and the plug-in terminal is electrically connected to the metal terminal.

2. The quick connection structure for flame retardant cable testing according to claim 1, characterized in that: The cable clearance groove is arranged opposite to the cable power connection component.

3. The quick connection structure for flame retardant cable testing according to claim 1, characterized in that: The installation slot is an inverted T-shaped structure, and the wiring terminal is detachably clamped in the installation slot.

4. The quick connection structure for flame retardant cable testing according to claim 1, characterized in that: The cable connection component comprises a metal table.

5. The quick connection structure for testing flame-retardant cables according to claim 4, characterized in that: A coaxially arranged metal rod is also provided on the top of the metal table top, and the diameter of the metal rod is smaller than the diameter of the metal table top.

6. The quick connection structure for testing flame-retardant cables according to claim 4, characterized in that: A placement groove is arranged on the top of the metal table top, the front end of the placement groove is connected with the front end of the metal table top, and the placement groove is arranged opposite to the cable yielding groove.

7. The quick connection structure for testing flame-retardant cables according to claim 1, characterized in that: The pressing component is a toggle clamp, the rear bottom of the toggle clamp is installed on the base, and an insulating pressing head is provided at the bottom of the toggle clamp. The toggle clamp drives the insulating pressing head to be close to or away from the cable power connection component.

8. The quick connection structure for testing flame-retardant cables according to claim 1, characterized in that: The pressing component is installed on the base via a bracket, and the pressing component includes a mounting plate, an insulating pressure rod, a spring, a convex ring and a pulling component. The mounting plate is arranged directly above the cable power connection component, and a through hole is provided on the mounting plate facing the cable power connection component. The middle part of the insulating pressure rod is movably inserted into the through hole, and the convex ring is arranged on the outer surface of the insulating pressure rod below the mounting plate. The pulling component is arranged above the mounting plate and connected to the top of the insulating pressure rod. The spring is sleeved on the outside of the insulating pressure rod, the top of the spring is against the bottom surface of the mounting plate, and the bottom of the spring is against the top surface of the convex ring. The spring pushes the insulating pressure rod to move downward and be close to the cable power connection component.

9. The quick connection structure for testing flame-retardant cables according to claim 8, characterized in that: The width of the pulling component is greater than the diameter of the through hole, and the outer diameter of the convex ring is greater than the diameter of the through hole; A screw hole is provided at the bottom of the pulling component, and the pulling component is screwed and connected to the top of the insulating pressure rod through the screw hole; The pulling component is provided with a pulling opening.

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