CN112803176A

CN112803176A - Wire connection fitting

Info

Publication number: CN112803176A
Application number: CN202110288032.6A
Authority: CN
Inventors: 喻涛华; 钟厚龙
Original assignee: Orton Electric Group Co ltd
Current assignee: Orton Electric Group Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-05-14
Anticipated expiration: 2041-03-17
Also published as: CN112803176B

Abstract

The utility model provides a wire link fitting, belongs to cubical switchboard technical field, includes support, overlapping strap, compresses tightly portion and regulating part, and the support mounting is on the electric connection switch of cubical switchboard, and overlapping strap installing support bottom compresses tightly the portion and installs on the support, and the portion that compresses tightly the cable on the overlapping strap, and the regulating part is installed between support and the portion that compresses tightly. The support includes lower card, curb plate, goes up the card, through-hole, screw hole down, and the card lateral part has the curb plate down, and the curb plate top has last card, and lower card center has down the through-hole, and the installation overlap joint piece on the through-hole down goes up the card center and has the screw hole, passes through screw thread mounting screw in the screw hole. The lapping plate comprises a contact piece and a binding post, the lapping plate is made of a conductive material, and the contact piece is arranged on the inner side of the lower clamping piece. The compressing part comprises a pressing block and a guide rod, the guide rod is arranged above the center of the pressing block, the guide rod is provided with a thread, and an adjusting nut is installed through the thread. The adjusting part comprises a transmission box, a plug hole, a sleeve, a screw, a spring and an adjusting nut.

Description

Wire connection fitting

Technical Field

The invention belongs to the technical field of switch cabinets, and particularly relates to a wire connecting fitting.

Background

The operation of connecting is connected to needs a large amount of electricity in the cubical switchboard, just also has a large amount of wire link fittings in advance in the cubical switchboard naturally, and wire link fittings connects the wire and fixes on the switching device of cubical switchboard, and the comparatively extensive wire link fittings of using at present uses clamping piece of screw cooperation to press from both sides tightly and fix the wire usually, as long as with the correct screw-up of screw, this kind of mounting means can guarantee to connect the wire is stable. However, this type of mounting often causes another problem in that the degree of tightening of the screw is not easily grasped, and a certain operation experience is required for the operator. The lead is easy to loosen due to insufficient screwing degree of the screw, and the lead can be extruded and deformed due to over-tightening degree of the screw, so that the effective conductive sectional area of the lead is reduced, local current is easy to be overlarge, and circuit faults and even electricity utilization danger can be caused in severe cases. Therefore, the electric connection operator needs to master the proper screw compression force all the time, the stable connection of the lead is ensured, the sectional area of the lead cannot be damaged, higher requirements are provided for field operators, and the field operation efficiency is influenced.

Disclosure of Invention

The invention provides a wire connecting fitting to solve the problems in the background art.

The technical problem solved by the invention is realized by adopting the following technical scheme:

the utility model provides a wire link fitting, includes support, overlapping plate, compresses tightly portion and regulating part, and the support mounting is on the electric connection switch of cubical switchboard, and overlapping plate installing support bottom compresses tightly the portion and installs on the support, and the portion that compresses tightly the cable on the overlapping plate, and the regulating part is installed between support and the portion that compresses tightly.

The support includes lower card, curb plate, goes up the card, through-hole, screw hole down, and the card lateral part has the curb plate down, and the curb plate top has last card, and lower card center has down the through-hole, and the installation overlap joint piece on the through-hole down goes up the card center and has the screw hole, passes through screw thread mounting screw in the screw hole. The overlap joint piece includes contact and terminal, and the overlap joint piece adopts conducting material to make, and the overlap joint piece passes through the terminal and installs in the lower through-hole of card under, and the circuit contact on the welding switch subassembly on the terminal, contact installation card inboard under. The compressing part comprises a pressing block and a guide rod, the guide rod is arranged above the center of the pressing block, the guide rod is provided with a thread, and an adjusting nut is installed through the thread. The regulating part comprises a transmission box, an insertion hole, a sleeve, a screw, a spring and a regulating nut, the transmission box is a box-shaped part with two open ends, the top surface of the transmission box is provided with the insertion hole, the screw is installed on the insertion hole and limited in the middle of the transmission box through a pin, the bottom of the transmission box is provided with the sleeve, the sleeve is of a hollow structure, a guide rod is installed in the sleeve, the guide rod slides in the sleeve, the spring is sleeved on the sleeve, the regulating nut is installed on the guide rod, and the spring is located between the transmission box and the regulating nut.

Further, the lap joint sheet is preferably made of copper.

Further, the briquetting is V-shaped piece.

Furthermore, the side part of the pressing block is provided with a pull rod, the pull rod penetrates through the adjusting part and the support to the outside of the support, and the pressing block can be pushed and pulled through the pull rod.

Furthermore, one side of the threaded hole close to the side plate is provided with an upper square hole, the side of the plug hole is provided with a middle square hole, a pull rod penetrates through the middle square hole, and the pull rod can freely slide in the middle square hole.

The invention has the beneficial effects that:

the pressing block is provided with the spring, the pressing block can easily and preliminarily press the wires under the action of the spring, then the transmission box is pressed through the screw, the spring is further compressed by the transmission box, the pressing block further presses the wires, and at the moment, the pressing force of the pressing block on the wires is not more than the maximum elastic coefficient of the spring all the time, so that the deformation of the wires caused by excessive extrusion can be effectively avoided, and the effective conductive sectional area of the wires is protected.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is an exploded view of the present invention;

in the figure: 10. the novel adjustable bolt comprises a support, 11, a lower clamping piece, 12, a side plate, 13, an upper clamping piece, 14, a lower through hole, 15, a threaded hole, 16, an upper square hole, 20, a lap joint piece, 21, a contact piece, 22, a binding post, 30, a pressing part, 31, a pressing block, 32, a guide rod, 33, a pull rod, 40, an adjusting part, 41, a transmission box, 42, a plug hole, 43, a middle square hole, 44, a sleeve, 45, a screw, 46, a spring and 47 an adjusting nut.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 3, the wire connection fitting includes a bracket 10, a strap 20, a pressing portion 30 and an adjusting portion 40, the bracket 10 is mounted on an electrical connection switch of a switch cabinet, the strap 20 is mounted at the bottom of the bracket 10, the pressing portion 30 is mounted on the bracket 10, the pressing portion 30 presses a cable onto the strap 20 to achieve stable electrical connection, and the adjusting portion 40 is mounted between the bracket 10 and the pressing portion 30 to adjust a pressing force of the pressing portion 30.

The support 10 comprises a lower clamping piece 11, a side plate 12, an upper clamping piece 13, a lower through hole 14, a threaded hole 15 and an upper square hole 16, wherein the side part of the lower clamping piece 11 is provided with the side plate 12, the top of the side plate 12 is provided with the upper clamping piece 13, the center of the lower clamping piece 11 is provided with the lower through hole 14, the lower through hole 14 is provided with a lap joint piece 20, the center of the upper clamping piece 13 is provided with the threaded hole 15, a screw thread mounting screw 45 is arranged in the threaded hole 15, and one side, close to the side.

The bonding strap 20 comprises a contact piece 21 and a binding post 22, the bonding strap 20 is made of a conductive material, the copper material is used as the best material, the bonding strap 20 is installed in the lower through hole 14 of the lower clamping piece 11 through the binding post 22, a circuit contact on a switch assembly is welded on the binding post 22, after a lead is pressed, the bonding strap 20 and the lead form an electric connection structure, and the contact piece 21 is installed on the inner side of the lower clamping piece 11.

The pressing part 30 comprises a pressing block 31, a guide rod 32 and a pull rod 33, the pressing block 31 is a V-shaped block, the guide rod 32 is arranged above the center of the pressing block 31, threads are arranged on the guide rod 32, an adjusting nut 47 is installed through the threads, the guide rod 32 plays a guiding role in the movement of the pressing block 31, the pull rod 33 is arranged on the lateral part of the pressing block 31, the pull rod 33 penetrates through the adjusting part 40 and the support 10 to the outside of the support 10, and the push-pull operation of the pressing block 31 can be realized through the pull.

The adjusting part 40 comprises a transmission box 41, an insertion hole 42, a middle square hole 43, a sleeve 44, a screw 45, a spring 46 and an adjusting nut 47, the transmission box 41 is a box-shaped part with two open ends, the top surface of the transmission box 41 is provided with the insertion hole 42, the screw 45 is arranged on the insertion hole 42, the screw 45 is limited in the middle of the transmission box 41 through a pin (not shown), the side of the insertion hole 42 is provided with the middle square hole 43, the pull rod 33 passes through the middle square hole 43, the pull rod 33 can freely slide in the middle square hole 43, the bottom of the transmission box 41 is provided with the sleeve 44, the sleeve 44 is of a hollow structure, the guide rod 32 is arranged in the sleeve 44, the guide rod 32 slides in the sleeve 44, the sleeve 44 is sleeved with the spring 46, the adjusting nut 47 is arranged on the guide rod 32, the spring 46 is positioned between the transmission guide rod box 41 and the adjusting nut 47, the pressing block 31 always has a downward pressing tendency under the action of, that is, the force of the adjusting spring 46 acting on the pressing block 31 can be adjusted, and as the screw 45 presses the transmission case 41 downwards, the force of the pressing block 31 acting on the wire does not exceed the maximum pressure of the spring 46.

The working principle of the invention is as follows: firstly, the whole hardware fitting is installed according to the attached drawing, when a wire needs to be connected, firstly, the screw 45 is loosened, the pressing block 31 is lifted up through the pull rod 33, the exposed part of the wire is inserted between the pressing block 31 and the contact piece 21, after the pull rod 33 is loosened, the pressing block 31 preliminarily compresses the wire under the action of the spring 46, then, the screw 45 is screwed down, the transmission box 41 is pushed downwards, at the moment, the guide rod 32 slides in the sleeve 44, the spring 46 is continuously compressed, the compressed spring 46 transmits the pressing force to the pressing block 31 to further compress the wire, as long as the screw 45 is not screwed down to the lower limit position, the pressing force of the pressing block 31 on the wire is always controlled by the spring 46, the condition that the wire is deformed due to excessive compression of electric connection and the electric connection effect is influenced is avoided, as long as the elastic coefficient of the spring 46 is properly selected, the stable connection of the wire can be, the quality of electric connection is effectively guaranteed.

The above embodiments mainly describe the wire connection fitting of the present invention. While only a limited number of embodiments and features have been described, those skilled in the art will recognize that the invention can be embodied in many other forms without departing from the spirit or scope thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and various modifications and alternative arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A wire connecting fitting comprises a support (10), a strap (20), a pressing portion (30) and an adjusting portion (40), and is characterized in that the support (10) is installed on an electric connection switch of a switch cabinet, the strap (20) is installed at the bottom of the support (10), the pressing portion (30) is installed on the support (10), the pressing portion (30) presses a cable on the strap (20), the adjusting portion (40) is installed between the support (10) and the pressing portion (30), the support (10) comprises a lower clamp (11), a side plate (12), an upper clamp (13), a lower through hole (14) and a threaded hole (15), the side portion of the lower clamp (11) is provided with the side plate (12), the top portion of the side plate (12) is provided with the upper clamp (13), the center of the lower clamp (11) is provided with the lower through hole (14), the strap (20) is installed on the lower through hole (14), the center of the upper clamp (13) is provided with the, a screw (45) is installed in a threaded hole (15) through threads, a contact plate (20) comprises a contact piece (21) and a binding post (22), the contact plate (20) is made of a conductive material, the contact plate (20) is installed in a lower through hole (14) of a lower clamping piece (11) through the binding post (22), a circuit contact on a switch component is welded on the binding post (22), the contact piece (21) is installed on the inner side of the lower clamping piece (11), a pressing part (30) comprises a pressing block (31) and a guide rod (32), the guide rod (32) is arranged above the center of the pressing block (31), the guide rod (32) is provided with threads, an adjusting nut (47) is installed through the threads, an adjusting part (40) comprises a transmission box (41), an inserting hole (42), a sleeve (44), a screw (45), a spring (46) and an adjusting nut (47), the transmission box (41) is a box-shaped part with two open ends, the, mounting screw (45) on spliced eye (42), screw (45) are restricted in the centre of transmission box (41) through the pin, transmission box (41) bottom has sleeve (44), sleeve (44) are hollow structure, installation guide arm (32) in sleeve (44), guide arm (32) slide in sleeve (44), spring (46) are registrated on sleeve (44), adjusting nut (47) are installed on guide arm (32), spring (46) are located between transmission box (41) and adjusting nut (47).

2. The wire connecting fitting of claim 1, wherein the strap (20) is copper.

3. The wire connecting fitting according to claim 1, wherein the press block (31) is a V-shaped block.

4. The wire connecting fitting according to claim 1, wherein the pressing piece (31) has a tie bar (33) at a side portion thereof, and the tie bar (33) passes through the adjustment portion (40) and the bracket (10) to the outside of the bracket (10).

5. The wire connecting fitting according to claim 4, wherein one side of the threaded hole (15) close to the side plate (12) is provided with an upper square hole (16), the side of the insertion hole (42) is provided with a middle square hole (43), and the pull rod (33) penetrates through the middle square hole (43).