A wiring terminal for a 110kv equipment cabinet

Abstract

The present invention discloses a wiring terminal for a 110kv equipment cabinet, which comprises at least two wiring units connected together, and a connection groove is formed at the connection of the two wiring units, wherein: a first fixing port is arranged on the top surface of each wiring unit, a first screw is installed inside the first fixing port, and a connection port is installed at the bottom end of one side of the first fixing port; a nut is installed on the top of the first screw, a sealing ring is installed at the middle of the bottom end of the nut, a screw is installed at the bottom end of the sealing ring, a fixing head is installed at the bottom end of the screw, the surface of the fixing head is coated with a glue layer, and the surface of the glue layer is coated with a friction layer. The present invention can fix the copper wire inside the wiring unit by arranging a fixing head at the bottom end of the screw, and it is not easy to pull and slide out. The installed sealing ring can also reduce the contact area between the screw and the air, and reduce the probability of the screw rusting. A slot is arranged in the middle of the sliding connection slot, which is convenient for the user to insert the screwdriver into the slot and slide.

Description

Technical Field

[0001] The invention relates to the field of electric power equipment, in particular to a connection terminal of a 110kv equipment cabinet. Background Art

[0002] Terminal blocks are an accessory product used to achieve electrical connections, and are classified as connectors in the industry. With the increasing degree of industrial automation and the increasingly stringent and precise requirements for industrial control, the use of terminal blocks has gradually increased. With the development of the electronics industry, the use of terminal blocks has become more and more diverse. In addition to PCB board terminals, the most widely used ones include hardware terminals, nut terminals, spring terminals, and so on.

[0003] However, the current 110kv equipment cabinet terminal blocks usually have aging screws and rust due to the humid environment of the cable trench at the bottom. It is difficult for a screwdriver to loosen the screws when changing the wiring or adding jumpers, which reduces work efficiency. At the same time, the rusty screws are prone to loosening and unstable contact when fixing the copper wire inside the wiring port, affecting the power supply process. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a wiring terminal for a 110kv equipment cabinet, which can improve the service life, safety and operating convenience of the wiring terminal.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a connection terminal for a 110kv equipment cabinet, comprising at least two connection units connected to each other, wherein a connection groove is formed at the connection of the two connection units, wherein:

[0007] A first fixing opening is provided on the top surface of each wiring unit, a first screw is installed inside the first fixing opening, and a connection opening is provided at the bottom end of one side of the first fixing opening;

[0008] The top of the first screw is provided with a nut, and the bottom of the first screw is provided with a screw rod; a sealing ring is sleeved at the connection between the nut and the screw rod, and the bottom of the screw rod is provided with a fixed head, the surface of the fixed head is coated with a glue layer, and the surface of the glue layer is coated with a friction layer;

[0009] A sliding rail is installed in the middle of the connecting groove, and a sliding block is installed at both ends of the connecting groove. A second fixing port is arranged on one side of the surface of each sliding block, and a slot is arranged on one side of the second fixing port.

[0010] Preferably, a groove is provided in the middle of the bottom end of the nut, and the groove is inlaid and connected with the sealing ring, and the sealing ring is made of rubber material.

[0011] Preferably, the connection port is fixed by threaded connection between a first screw and a first fixing port, the wiring unit and the connection slot are fixedly connected, and the first fixing port of the wiring unit and the second fixing port of the connection slot have the same structure.

[0012] Preferably, the surface of the fixing head is a smooth plane, the adhesive layer is made of an organic silicon gel material, and the friction layer is composed of a cylindrical rubber sleeve.

[0013] Preferably, the sliding block and the sliding rail are slidably connected, and the sliding block is threadedly fixed via a second fixing port and a second screw, and the second screw has the same structure as the first screw.

[0014] Preferably, the sliding rails and the sliding blocks in the connecting groove are made of metal materials; when the two sliding blocks slide to the middle position and contact each other, the electrical connection between the two docking wiring units is realized.

[0015] Preferably, the slot is a rectangular groove-shaped structure, and the top surface of the slot is covered with a rubber ring.

[0016] Preferably, a number plate is installed on one side surface of the bottom end of the first fixing port, the number plate is made of PVC material, and the number plates are arranged in a fixed order.

[0017] Preferably, a pressure plate is provided on the bottom side of the screw rod, a buckle ring is installed in the middle of the pressure plate, the buckle ring and the wiring unit are slidably connected through a connecting rod, and a slot is provided in the middle of the pressure plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Firstly, the present invention arranges a fixing head at the bottom end of the screw. The adhesive layer coated on the surface of the fixing head has a sticky effect, which can fix the position of the copper wire. The outer friction layer has a function of fixing the inner adhesive layer and conveniently twisting and fixing. The copper wire can be fixed inside the wiring unit and is not easy to be pulled out.

[0020] Secondly, the present invention achieves the effect of sealing the screw through the sealing ring installed at the bottom end of the nut. The groove setting at the bottom end of the nut facilitates the extrusion and fixation of the sealing ring, which can reduce the contact area between the screw and the air, reduce the probability of the screw rusting, and simultaneously reduce the contact area between the nut and the terminal. When the staff accidentally touches the metal of the screwdriver, they are less likely to be affected by electric shock.

[0021] Moreover, the present invention provides a slot in the sliding connection groove, so that the user can insert a screwdriver into the slot to move the sliding block after screwing the screw of the fixing port, thereby avoiding the staff from wearing out the groove of the nut when moving the screwdriver, causing the groove of the nut to be frequently worn out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of a wiring terminal of a 110kv equipment cabinet provided by the present invention;

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure of the first screw;

[0025] Figure 3 yes Figure 2 A bottom view of the fixing head of the first screw;

[0026] Figure 4 yes Figure 1 Schematic diagram of the connection slot structure in FIG.

[0027] Figure 5 is a schematic diagram of the internal structure of the wiring unit of the present invention;

[0028] Figure 6 yes Figure 5 A schematic diagram of the structure of the enlarged part A in the middle;

[0029] Figure 7 yes Figure 6 Schematic diagram of the pressure plate structure;

[0030] In the figure: 1. wiring unit; 2. connecting groove; 30. first fixing port; 31. second fixing port; 40. first screw; 41. second screw; 5. numbering plate; 6. connecting port; 7. nut; 8. sealing ring; 9. screw; 10. fixing head; 11. adhesive layer; 12. friction layer; 13. sliding rail; 14. sliding block; 15. slot; 16. pressure plate; 17. snap ring; 18. connecting rod; 19. slot; 90. cable copper wire. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] like Figure 1As shown, it shows a schematic diagram of the overall structure of a 110kv equipment cabinet terminal provided by the present invention, and combined with Figure 2-Figure 7 In this embodiment, the present invention provides a wiring terminal for a 110kv equipment cabinet, comprising at least two wiring units 1 connected together, Figure 1 , a plurality of connected wiring units 1 are shown; a connection groove 2 is formed at the connection between the two wiring units 1 .

[0033] A first fixing port 30 is provided on the top surface of each wiring unit 1, the surface shell of which is a square structure and the inner threaded part is a circular structure, a first screw 40 is installed inside the first fixing port 30, a number plate 5 is installed on the bottom side surface of the first fixing port 30, and a connection port 6 is provided at the bottom of the number plate 5. In one example, the connection port 6 is a two-layer structure, and it can be understood that it can also be a one-layer structure;

[0034] like Figure 2 and Figure 3 As shown, a nut 7 is provided at the top end of the first screw 40, and a screw rod 9 is provided at the bottom end thereof; a sealing ring 8 is sleeved at the connection between the nut 7 and the screw rod 9, and a fixing head 10 is provided at the bottom end of the screw rod 9, and the surface of the fixing head 10 is coated with a glue layer 11, and the surface of the glue layer 11 is coated with a friction layer 12.

[0035] Furthermore, a groove is provided in the middle of the bottom end of the nut 7, and the groove is inlaid with the sealing ring 8, which is made of rubber material, so that after the first screw 40 is threadedly connected, the sealing ring 8 is deformed by pressure to seal the gap between the fixing port 3 and the nut 7, thereby reducing the contact area between the screw 9 and the external environment.

[0036] A sliding rail 13 is installed in the middle of the connecting groove 2, and a sliding block 14 is installed at both ends of the connecting groove 2. A second fixing opening 31 is arranged on one side of the surface of each sliding block 14, and a slot 15 is arranged on one side of the second fixing opening 31. The first fixing opening 30 of the wiring unit 1 and the second fixing opening 31 of the connecting groove 2 have the same structure.

[0037] like Figure 5 As shown, the connection port 6 is fixed by threaded connection of the first screw 40 and the first fixing port 30, and the wiring unit 1 and the connection groove 2 are fixedly connected; after threaded fixation using the first screw 40 and the fixing port 3, the cable copper wire 90 that penetrates into the connection port 6 can be fixed.

[0038] The surface of the fixing head 10 is a smooth plane, the adhesive layer 11 is made of silicone gel material, and the friction layer 12 is composed of a cylindrical rubber sleeve, so that the fixing head 10 and the friction layer 12 are adhesively connected through the adhesive layer 11. After the fixing head 10 is compressed by the thread, the cable copper wire at the bottom is squeezed, wherein the friction layer 12 forms an extrusion effect on the copper wire, and the adhesive layer 11 forms a sticky connection with the copper wire, thereby fixing the position of the copper wire inside the wiring unit 1.

[0039] The second fixing opening 31 on the surface of the sliding block 14 is aligned with the first fixing opening 30 of the wiring unit 1, and the second screw 41 has the same structure as the first screw 40; the sliding block 14 and the sliding rail 13 are slidably connected, and the sliding block 14 is threadedly fixed by the second fixing opening 31 and the second screw 41. It can be understood that the sliding rail 13 and the sliding block 14 in the connection groove are made of metal materials; after the two sliding blocks 14 slide to the middle position and contact each other, and are fixed by the second screw 41, the electrical connection between the two docking wiring units 1 can be achieved; when the second screw 41 is loosened and the two sliding blocks 14 slide in opposite directions, the electrical connection between the two docking wiring units 1 can be disconnected, and then the second screw 41 can be used to fix and position them. In short, the signal lines connected to the left and right can be disconnected by disconnecting or connecting the connection groove.

[0040] Among them, the slot 15 is a rectangular groove-type structure, the top surface of the slot 15 is covered with a rubber ring, and the height of the rubber ring is 5 mm. The user can use a screwdriver to loosen the first screw 40 on the sliding block 14, and can insert the screwdriver into the slot 15 to slide the sliding block 14. The slot 15 can be set as a rectangular structure or a cross-shaped structure groove type to prevent the screwdriver from grinding the groove on the surface of the nut 7 during sliding.

[0041] The number plates 5 are made of PVC material and are arranged in a fixed order, which makes it convenient for the user to perform wiring operations on the corresponding wiring units 1 and to view the drawings.

[0042] In one embodiment, a pressure plate 16 can also be provided on the bottom side of the screw rod 9, and a snap ring 17 is installed in the middle of the pressure plate 16. The snap ring 17 and the wiring unit 1 are slidably connected through a connecting rod 18. For example, a slide groove is provided at a corresponding position in the wiring unit 1, and the connecting rod 18 can slide in the slide groove; wherein, a snap groove 19 is provided in the middle of the pressure plate 16. When fixed by the first screw 40, a thread rotation is generated between the first screw 40 and the wiring unit 1 and penetrates into the inside. The fixing head 10 at the bottom end of the screw rod 9 extending into the inside and the snap groove 19 in the middle of the pressure plate 16 form a sliding snap structure. After the length of the screw rod 9 is extended, it is pressed against the pressure plate 16. The point pressure of the pressure plate 16 is evenly shared to the surrounding area through the first screw 40 to form a surface pressure, so that the pressure distribution of the connected wires is more even.

[0043] Specifically, the user can connect multiple wiring units 1 to form a wiring terminal. When the wiring unit 1 needs to be used, the cable copper wire 90 can be placed along the connecting port 6 and fixed with the first screw 40. The fixing head 10 provided on the first screw 40 can be fixed according to the pressure of the friction layer 12 under the threaded connection and the internal cable copper wire can be fixed with the material of the adhesive layer 11 with low viscosity to avoid the copper wire breaking due to excessive pressure or the copper wire easily slipping out due to pulling force. When fixed by the first screw 40, the first screw 40 and the wiring unit 1 produce a threaded rotation deep inside. At this time, the fixing head 10 at the bottom end of the screw rod 9 extending into the inside and the card groove 19 in the middle of the pressure plate 16 form a sliding buckle structure. The pressure plate 16 is evenly distributed to the surrounding area through the point pressure of the first screw 40 to form a surface pressure, so that the pressure distribution of the connected wire is more even. The sealing ring 8 installed at the bottom end of the nut 7 can A sealing structure is formed with the wiring unit 1 to prevent the screw rod 9 from being exposed to moisture and corrosion in a large area in the external environment. In the connecting groove 2, the second fixing port 31 and the second screw 41 on the surface of the sliding block 14 adopt the same fixing structure as the first fixing port 30 and the first screw 40 on the surface of the wiring unit 1. After the user loosens the first screw 40 with a flat-blade screwdriver, the flat-blade screwdriver can be put into the slot 15 to slide the sliding block 14 to prevent the surface grooves of the screwdriver and the nut 7 from being worn flat during long-term loosening and tightening operations. Its overall structure is based on a cage spring terminal device, which can further improve the work efficiency of the staff and facilitate the staff's wiring operations on the wiring unit 1. There is no need to repeatedly tighten and check the first screw 40. The pressure plate 16, buckle ring 17, connecting rod 18 and slot 19 structures used are all made of plastic materials, and the original functional use will not be affected after internal breakage.

[0044] The implementation of the present invention has the following beneficial effects:

[0045] Firstly, the present invention arranges a fixing head at the bottom end of the screw. The adhesive layer coated on the surface of the fixing head has a sticky effect, which can fix the position of the copper wire. The outer friction layer has a function of fixing the inner adhesive layer and conveniently twisting and fixing. The copper wire can be fixed inside the wiring unit and is not easy to be pulled out.

[0046] Secondly, the present invention achieves the effect of sealing the screw through the sealing ring installed at the bottom end of the nut. The groove setting at the bottom end of the nut facilitates the extrusion and fixation of the sealing ring, which can reduce the contact area between the screw and the air, reduce the probability of the screw rusting, and simultaneously reduce the contact area between the nut and the terminal. When the staff accidentally touches the metal of the screwdriver, they are less likely to be affected by electric shock.

[0047] Moreover, the present invention provides a slot in the sliding connection groove, so that the user can insert a screwdriver into the slot to move the sliding block after tightening the screw of the fixed port, thereby avoiding the staff from wearing out the groove of the nut when moving the screwdriver, causing the groove of the nut to be frequently worn out and reducing the tightening efficiency.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connection terminal for a 110kv equipment cabinet, comprising at least two connection units (1) connected together, wherein a connection groove (2) is formed at the connection of the two connection units (1), characterized in that: in: The top surface of each wiring unit (1) is provided with a first fixing opening (30), a first screw (40) is installed inside the first fixing opening (30), and a connection opening (6) is provided at the bottom end of one side of the first fixing opening (30); The top end of the first screw (40) is provided with a nut (7), and the bottom end thereof is provided with a screw rod (9); a sealing ring (8) is sleeved at the connection between the nut (7) and the screw rod (9), and the bottom end of the screw rod (9) is provided with a fixing head (10), the surface of the fixing head (10) is coated with a glue layer (11), and the surface of the glue layer (11) is coated with a friction layer (12); A sliding rail (13) is installed in the middle of the connecting groove (2), and a sliding block (14) is installed at both ends of the connecting groove (2). A second fixing opening (31) is provided on one side of the surface of each sliding block (14), and a slot (15) is provided on one side of the second fixing opening (31); The copper wire (90) of the cable in the connection port (6) is fixed by threaded connection between the first screw (40) and the first fixing port (30), and the first fixing port (30) of the wiring unit (1) and the second fixing port (31) of the connection slot (2) have the same structure; The surface of the fixing head (10) is a smooth plane, the adhesive layer (11) is made of an organic silicon gel material, and the friction layer (12) is composed of a cylindrical rubber sleeve; The sliding block (14) and the sliding rail (13) are slidably connected, the sliding block (14) is threadedly fixed through a second fixing opening (31) and a second screw (41), and the second screw (41) has the same structure as the first screw (40); The sliding rail (13) and the sliding block (14) in the connection groove are both made of metal materials; when the two sliding blocks (14) slide to the middle position and contact each other, electrical connection between the two butted wiring units (1) is achieved; A pressure plate (16) is arranged on the bottom side of the screw rod (9), and a buckle ring (17) is installed in the middle of the pressure plate (16). The buckle ring (17) and the wiring unit (1) are slidably connected through a connecting rod (18). A slide groove is arranged at a corresponding position in the wiring unit (1), and the connecting rod (18) is slidably matched with the slide groove. A clamping groove (19) is arranged in the middle of the pressure plate (16). When fixed by the first screw (40), a thread is generated between the first screw (40) and the wiring unit (1) to rotate deeply inside, and the bottom end fixing head (10) of the screw rod (9) extending into the inside and the clamping groove (19) in the middle of the pressure plate (16) form a sliding buckle structure. After the length of the screw rod (9) is extended, it is pressed against the pressure plate (16), and the pressure plate (16) is evenly distributed to the surrounding area by the point pressure of the first screw (40) to form a surface pressure.

2. A 110kv equipment cabinet terminal according to claim 1, characterized in that: A groove is provided in the middle of the bottom end of the nut (7), and the groove is inlaid and connected with the sealing ring (8), and the sealing ring (8) is made of rubber material.

3. A 110kv equipment cabinet terminal according to claim 2, characterized in that: The slot (15) is a rectangular parallelepiped groove-shaped structure, and the top surface of the slot (15) is covered with a rubber ring, and the height of the rubber ring is 5 mm.

4. A 110kv equipment cabinet terminal according to claim 3, characterized in that: A number plate (5) is installed on one side surface of the bottom end of the first fixing port (30), the number plate (5) is made of PVC material, and the number plates (5) are arranged in a fixed sequence.

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