A safety explosion-proof wiring terminal

Abstract

The application discloses a safe anti-explosion wiring terminal and belongs to the technical field of wiring terminals. The existing wiring terminal has the problems of complicated wire end winding or welding conductor body steps and easy loosening affecting circuit transmission. The application extrudes the fan-shaped clamping block to rotate inward to extrude the copper wire outer insulation layer in the process of rotating the first internal thread cylinder to move outward, realizes the fixing of the copper wire outer insulation layer, drives the annular traction block to move outward to drive two connecting rods to pull the driving frame body outward, drives two groups of second clamping blocks in the form of a jaw to extrude and clamp the copper wire in the process of moving outward through the symmetrically-installed shaft pins on the inner side of the driving frame body, realizes the clamping and fixing of the inner copper wire, and finally realizes the power transmission of the conductor. Through the above steps, the double fixing effect of the copper wire and the inner copper wire can be realized by only moving the first internal thread cylinder outward, the operation is convenient, the installation is stable, and the application has the characteristics of high safety protection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution cabinet, in particular to a safe anti-explosion wiring terminal. BACKGROUND

[0002] When using copper wire type conductor for crimping, a block-shaped conductor is usually wound or welded at the crimping end of the copper wire for bolt crimping, which has the characteristic of more stable current transmission compared to traditional copper wire winding crimping.

[0003] The existing copper wire winding or welding block-shaped conductor is installed with an insulating sleeve or wrapped with insulating tape for protection, which is relatively cumbersome to install. In addition, due to unstable connection of copper wire and block-shaped conductor, external factors such as collision, etc., the joint may be loose and generate heat or sparks, affecting the stability of current transmission and causing safety hazards.

[0004] Based on the above problems, the present application provides a safe anti-explosion wiring terminal. SUMMARY

[0005] In view of the problems in the above technical background, the present application aims to provide a safe anti-explosion wiring terminal, which on the one hand realizes convenient clamping of copper wire and conductor, and on the other hand realizes double stable clamping, improves the stability of connection, and solves the problems of cumbersome and easy to loosen the existing wire end winding or welding conductor steps in the background technology, which affect the circuit transmission.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0007] A safe anti-explosion wiring terminal, comprising a first outer threaded cylinder and a positioning cylinder connected thereto, a plurality of rotating clamping blocks in the shape of a sector are installed on the side wall of the first outer threaded cylinder, a first inner threaded cylinder is installed on the first outer threaded cylinder, which extrudes the insulating layer outside the copper wire by moving outward to extrude the clamping blocks inward;

[0008] One end of the first inner threaded cylinder is provided with a ring-shaped traction block, the ring-shaped traction block is connected to a driving frame located in the positioning cylinder through two groups of connecting rods; the driving frame is sleeved on two groups of second clamping blocks installed in the shape of a jaw, and a shaft pin is installed on the driving frame to control the opening angle of the two groups of second clamping blocks when sliding;

[0009] One end of the two groups of second clamping blocks is rotatably installed on the conductor, and the conductor is installed on the other end of the positioning cylinder.

[0010] Further, a plurality of through grooves are evenly arranged on the first externally threaded cylinder sidewall, the through grooves are internally provided with the fan-shaped rotating clamping blocks, the rotating clamping blocks comprise the first clamping blocks and the first clamping teeth, the first clamping block fan hearts are rotatably arranged in the through grooves through fixing shafts, and the inboard fan-shaped ends are provided with the first clamping teeth.

[0011] Further, the first externally threaded cylinder is externally provided with a anti-dropping ring and internally provided with a ring-shaped rubber pad.

[0012] Further, the first internally threaded cylinder is internally provided with the first ring-shaped groove and the second ring-shaped groove in the direction from inside to outside, the first ring-shaped groove and the second ring-shaped groove are internally provided with the ring-shaped traction blocks, the ring-shaped traction blocks comprise the first traction ring and the second traction ring, the first traction ring and the second traction ring are connected, the second traction ring is rotatably arranged in the first ring-shaped groove, the first traction ring is arranged on the first ring-shaped groove, and the connecting rods are symmetrically arranged on the first traction ring outer side.

[0013] Further, the positioning cylinder is symmetrically provided with the sliding grooves, the connecting rods are inserted into the sliding grooves, the other ends of the connecting rods are connected with the connecting plates towards the cylinder center, and the inboard ends of the two groups of connecting plates are connected with the drive frame bodies.

[0014] Further, the drive frame bodies comprise the frame bodies and the shaft pins symmetrically arranged on the inboard sidewalls of the frame bodies, the positioning cylinders on one side of the drive frame bodies are internally provided with the columnar conductive bodies contained in the conductive bodies, the columnar conductive bodies are internally provided with the recessed rotating grooves towards one side of the drive frame bodies, and one ends of the two groups of second clamping blocks are symmetrically rotatably arranged in the rotating grooves.

[0015] Further, the frame bodies are sleeved on the two groups of second clamping blocks, the two groups of second clamping blocks are symmetrically provided with the drive grooves parallel to the inner surfaces of the jaws on the outer sides, and the shaft pins are inserted into the drive grooves.

[0016] Further, the two groups of second clamping blocks are symmetrically provided with the second clamping teeth clamping copper wires on the opposite jaw surfaces.

[0017] Further, the conductive bodies further comprise the block-shaped conductive bodies, the inboard ends of the block-shaped conductive bodies are connected with the columnar conductive bodies, the outer ends of the block-shaped conductive bodies pass through the other ends of the positioning cylinders, the other ends of the positioning cylinders are internally provided with the second externally threaded cylinders, the second externally threaded cylinders are internally provided with the second internally threaded cylinders, and the second internally threaded cylinders are externally provided with the snap rings limiting the columnar conductive bodies from sliding out.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] (1) the copper wire end of the copper wire is inserted into the first outer threaded cylinder, the copper wire end is ensured to enter between the two groups of second clamping blocks inside the positioning cylinder, then the first inner threaded cylinder is moved outward by rotating, the fan-shaped clamping block is extruded inward during the outward movement of the first inner threaded cylinder, the outer insulating layer of the copper wire is extruded, the installation of the outer insulating layer of the copper wire is fixed, the annular traction block is moved outward during the outward movement of the first inner threaded cylinder, the driving frame body is pulled outward through the two connecting rods, the two groups of second clamping blocks in the form of a pincer are driven to be pinched and extrude the copper wire through the symmetrical shaft pins inside the driving frame body, the inner copper wire is clamped and fixed, then the second clamping block carries out power transmission through the conductor, through the above steps, the copper wire and the copper wire end are double-fixed by only moving the first inner threaded cylinder outward, the operation is convenient, the installation is stable, and the safety protection is high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 the perspective view provided for the embodiment of the present application Figure 1 ;

[0021] Figure 2 the perspective view provided for the embodiment of the present application Figure 2 ;

[0022] Figure 3 the partial exploded perspective view provided for the embodiment of the present application

[0023] Figure 4 the first inner threaded cylinder half-section perspective view provided for the embodiment of the present application

[0024] Figure 5 the first outer threaded cylinder half-section partial perspective view provided for the embodiment of the present application

[0025] Figure 6 the positioning cylinder half-section partial perspective view provided for the embodiment of the present application Figure 1 ;

[0026] Figure 7 the positioning cylinder half-section partial perspective view provided for the embodiment of the present application Figure 2 ;

[0027] Figure 8 the columnar conductor half-section partial perspective view provided for the embodiment of the present application

[0028] In the diagram: 1. First external threaded cylinder; 2. Through groove; 3. First clamping block; 4. First clamping tooth; 5. Fixed shaft; 6. Anti-detachment ring; 7. Annular rubber pad; 8. First internal threaded cylinder; 9. First annular groove; 10. Second annular groove; 11. Positioning cylinder; 12. Sliding groove; 13. Connecting rod; 14. First traction ring; 15. Second traction ring; 16. Connecting plate; 17. Frame; 18. Shaft pin; 19. Columnar conductor; 20. Rotating groove; 21. Second clamping block; 22. Drive groove; 23. Second clamping tooth; 24. Block conductor; 25. Second external threaded cylinder; 26. Second internal threaded cylinder; 27. Snap ring. Detailed Implementation

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] like Figures 1-8 As shown, a safety explosion-proof terminal block includes a first external threaded cylinder 1 and a positioning cylinder 11 connected thereto. The first external threaded cylinder 1 and the positioning cylinder 11 are made of an insulating material. Multiple fan-shaped rotating clamping blocks are installed on the side wall of the first external threaded cylinder 1. A first internal threaded cylinder 8 is installed on the first external threaded cylinder 1, which, by moving outwards, compresses the clamping blocks to press the outer insulation layer of the copper wire inwards. By controlling the first internal threaded cylinder 8 to rotate outwards, multiple rotating clamping blocks are compressed to rotate inwards, and the inward rotation of the clamping blocks compresses the outer insulation layer of the copper wire, achieving a fixed connection effect and preventing the copper wire from moving and affecting the power transmission of the inner connection point. An annular traction block is installed at one end of the first internal threaded cylinder 8. The block is connected to the drive frame located inside the positioning cylinder 11 via two sets of connecting rods 13; by setting an annular traction block, the rotational movement of the first internal thread cylinder 8 is changed to a non-rotational lateral movement transmission, which drives the two sets of connecting rods 13 to move outward. The two sets of connecting rods 13 drive the drive frame to drive the copper wires on the inner side of the teeth of the two sets of second clamping blocks 21, so as to achieve stable clamping and transmission of fresh fruit at the inner end. The drive frame is fitted on the two sets of second clamping blocks 21 installed in a clamping jaw shape. The drive frame is equipped with a shaft pin 18 that controls the opening angle of the two sets of second clamping blocks 21 when sliding; one end of the two sets of second clamping blocks 21 is rotatably installed on a conductor, and the conductor is installed on the other end of the positioning cylinder 11. The conductor is connected to the outer pressure wire mechanism for stable power transmission.

[0031] In the embodiment, the design idea is that compared with traditional winding and welding, copper wire and block-shaped conductive body are prone to looseness or cracking, which affects the stability of power transmission, and after winding or welding, an insulating layer needs to be wound and installed on the outside, which is complicated; the threaded cylinder is arranged to rotate and slide, the fan-shaped rotating clamping block is arranged on the inner threaded cylinder, the outer threaded cylinder is rotated to move and extrude the rotating clamping block to fix the outer insulating layer of the copper wire, the rotating movement of the first inner threaded cylinder 8 is changed into non-rotating transverse movement transmission through the annular traction block in the moving process, the two groups of connecting rods 13 are driven to move outward, the two groups of second clamping blocks 21 installed in the form of a jaw are driven to close by the driving frame body on the inner side, the copper wire inserted into the inner side is extruded and clamped in the process that the two groups of second clamping blocks 21 are closed, then the two groups of second clamping blocks 21 are rotatably installed through the columnar conductive body 19, the columnar conductive body 19 is installed in the positioning cylinder 11, the block-shaped conductive body 24 is connected to the outer end of the columnar conductive body 19, so that the block-shaped conductive body 24 is convenient for being crimped with an external terminal, the above structure realizes extrusion and fixation of the inner and outer sides at the same time through one action, is convenient to operate, is stable in connection, and is safer in power transmission.

[0032] As shown in Figure 1 , 2 , 3, 5, a plurality of through grooves 2 are uniformly arranged on the side wall of the first outer threaded cylinder 1, the fan-shaped rotating clamping block is arranged in the through groove 2, the rotating clamping block comprises a fan-shaped first clamping block 3 and a first clamping tooth 4, the first clamping block 3 is rotatably installed in the through groove 2 through a fixed shaft 5 at the fan heart, and the fan-shaped end on the inner side is provided with the first clamping tooth 4, the upper and lower spacing of the outer fan-shaped end of the first clamping block 3 is greater than the depth of the through groove 2, and the first clamping tooth 4 is arranged to increase the stability of extrusion and clamping and prevent sliding.

[0033] As shown in Figure 5 , the first outer threaded cylinder 1 is provided with a anti-loosening ring 6 on the outer end, and is provided with an annular rubber pad 7 on the inner side, the anti-loosening ring 6 is arranged to prevent the first inner threaded cylinder 8 from rotating and loosening, and the annular rubber pad 7 is arranged to prevent sundries from entering the inner side of the positioning cylinder 11 and affecting power transmission.

[0034] As shown in Figure 4 , 8As shown, the first inner threaded cylinder 8 drives the first traction ring 14 and the second traction ring 15 to move outward during rotation, realizing the effect of moving the connecting rod 13 outward by the first traction ring 14 and the second traction ring 15, and the first inner threaded cylinder 8 is provided with a first annular groove 9 and a second annular groove 10 on the inner side in the outward direction, and the first annular groove 9 and the second annular groove 10 are provided with annular traction blocks, the annular traction blocks include the first traction ring 14 and the second traction ring 15, the first traction ring 14 and the second traction ring 15 are connected, and the second traction ring 15 is rotatably installed in the first annular groove 9 and the first traction ring 14 is installed on the first annular groove 9, and the connecting rod 13 is symmetrically installed on the outer side of the first traction ring 14.

[0035] As shown in Figure 6 , 7 , the positioning cylinder 11 is symmetrically provided with a sliding groove 12, the connecting rod 13 is inserted into the sliding groove 12, and the other end of the connecting rod 13 is connected with a connecting plate 16 facing the cylinder core, and the inner side ends of the two groups of connecting plates 16 are connected with a driving frame body, and the sliding of the connecting rod 13 is facilitated by the setting of the sliding groove 12 to drive the connecting plate 16 to move, and finally to drive the driving frame body to move.

[0036] As shown in Figure 6 , 7 , 8, the driving frame body includes a frame body 17 and shaft pins 18 symmetrically installed on the inner side wall thereof, and a columnar conductor 19 contained in the conductor is installed in the positioning cylinder 11 on one side of the driving frame body, the columnar conductor 19 is provided with a concave rotating groove 20 on the side facing the driving frame body, and one end of the two groups of second clamping blocks 21 is symmetrically rotatably installed in the rotating groove 20, and the rotating groove 20 is provided on one side to rotatably install the two groups of second clamping blocks 21, and on the other side to allow the conductor to transmit power.

[0037] As shown in Figure 6 , 7 , the frame body 17 is sleeved on the two groups of second clamping blocks 21, and the outer side surfaces of the two groups of second clamping blocks 21 are symmetrically provided with driving grooves 22 parallel to the inner surfaces of the jaws, and the shaft pins 18 are inserted into the driving grooves 22, and the frame body 17 drives the shaft pins 18 to move during movement, and the shaft pins 18 change the opening angle of the two groups of second clamping blocks 21 by extruding the driving grooves 22, thereby realizing the clamping effect of the copper wire.

[0038] As shown in Figure 6 , 7 , the two groups of second clamping blocks 21 are symmetrically provided with second clamping teeth 23 for clamping the copper wire on the opposite jaw surfaces. The setting of the second clamping teeth 23 increases the clamping effect of the copper wire and prevents sliding.

[0039] As shown in Figure 3As shown, the conductive body also comprises a block-shaped conductive body 24, the inner end of which is connected to the columnar conductive body 19, while the outer end thereof penetrates through the other end of the positioning cylinder 11, the other end of the positioning cylinder 11 is provided with a second external threaded cylinder 25, the second external threaded cylinder 25 is provided with a second internal threaded cylinder 26, the outer side of the second internal threaded cylinder 26 is provided with a snap ring 27 for limiting the sliding of the columnar conductive body 19, the columnar conductive body 19 is limited after being installed through the second internal threaded cylinder 26 and the snap ring 27, the safety protection and stability of the installation are increased, meanwhile, the second internal threaded cylinder 26 and the snap ring 27 are made of PVC insulating material.

[0040] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only the principles of the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A safety explosion-proof terminal comprising a first outer threaded cylinder (1) and a positioning cylinder (11) connected thereto, characterized in that; The first outer thread cylinder (1) side wall is provided with a plurality of fan-shaped rotating clamping blocks, the first outer thread cylinder (1) is provided with a first inner thread cylinder (8) which extrudes the copper wire outer insulation layer by moving outward to extrude the clamping block; The first inner thread cylinder (8) one end is provided with a ring traction block, the ring traction block is connected to the driving frame in the positioning cylinder (11) through two groups of connecting rods (13); the driving frame is sleeved on two groups of second clamping blocks (21) which are installed in the form of a pincer, the driving frame is provided with a shaft pin (18) which controls the opening angle of two groups of second clamping blocks (21) when sliding; One end of two groups of second clamping blocks (21) is rotatably installed on the conductor, and the conductor is installed on the other end of the positioning cylinder (11); The first outer thread cylinder (1) side wall is provided with a plurality of through grooves (2), the through grooves (2) are provided with a plurality of fan-shaped rotating clamping blocks, the rotating clamping blocks include a first clamping block (3) and a first clamping tooth (4), the first clamping block (3) is rotatably installed in the through groove (2) through a fixed shaft (5), and the first clamping tooth (4) is installed on the inner side of the fan-shaped end; The first inner thread cylinder (8) is provided with a first annular groove (9) and a second annular groove (10) which are communicated from inside to outside, the first annular groove (9) and the second annular groove (10) are provided with the ring traction block, the ring traction block includes a first traction ring (14) and a second traction ring (15), the first traction ring (14) and the second traction ring (15) are connected, and the second traction ring (15) is rotatably installed in the first annular groove (9) and the first traction ring (14) is installed on the first annular groove (9), the outer side of the first traction ring (14) is symmetrically provided with the connecting rod (13).

2. The safety explosion-proof type terminal according to claim 1, characterized in that, The first outer thread cylinder (1) is provided with a anti-loose ring (6) on the outer side and a ring rubber pad (7) on the inner side.

3. A safety explosion-proof wiring terminal according to claim 2, wherein The positioning cylinder (11) is symmetrically provided with a sliding groove (12), the connecting rod (13) is inserted into the sliding groove (12), and the other end of the connecting rod (13) is connected with a connecting plate (16) which faces the cylinder center, and the inner side of two groups of connecting plates (16) is connected with the driving frame.

4. The safety explosion-proof type terminal according to claim 3, wherein The driving frame includes a frame (17) and a shaft pin (18) which is symmetrically installed on the inner side wall of the frame, the positioning cylinder (11) on one side of the driving frame is provided with a columnar conductor (19) which is contained in the conductor, the columnar conductor (19) is provided with an inner recessed rotating groove (20) which faces one side of the driving frame, and one end of two groups of second clamping blocks (21) is symmetrically rotatably installed in the rotating groove (20).

5. A safety explosion-proof wiring terminal according to claim 4, wherein The frame (17) is sleeved on two groups of second clamping blocks (21), and the outer side of two groups of second clamping blocks (21) is symmetrically provided with a driving groove (22) which is parallel to the inner surface of the pincer, and the shaft pin (18) is inserted into the driving groove (22).

6. A safety explosion-proof wiring terminal according to claim 5, wherein The second clamping teeth (23) for clamping copper wires are symmetrically arranged on the facing clamping surface of the second clamping blocks (21).

7. The safety explosion-proof type terminal according to claim 4, wherein The conductive body further comprises a block-shaped conductive body (24), the inner end of the block-shaped conductive body (24) is connected with the columnar conductive body (19), and the outer end of the block-shaped conductive body (24) penetrates through the other end of the positioning cylinder (11), the other end of the positioning cylinder (11) is provided with a second external thread cylinder (25), the second external thread cylinder (25) is provided with a second internal thread cylinder (26), and the outer side of the second internal thread cylinder (26) is provided with a snap ring (27) for limiting the sliding out of the columnar conductive body (19).

Images