Wiring terminal protective sleeve of electrical automation equipment

Abstract

The utility model relates to the field of electrical wiring, in particular to a wiring terminal protective sleeve of electrical automation equipment, which comprises a first junction box and a second junction box, a plug board is mounted on the periphery of one side of the first junction box, the surface of the plug board is connected to the inner wall of the second junction box, a sealing mechanism is sleeved on the surface of the plug board, and the sealing mechanism is connected with the plug board. The sealing mechanism comprises a first sealing ring and a second sealing ring, one side of the upper end and one side of the lower end of each of the first sealing ring and the second sealing ring are each provided with a set of clamping plates, and one side of each of the first junction box and the second junction box is sleeved with an insulating heat shrink tube. Through the arrangement of the plug board, the first junction box and the second junction box, a certain waterproof effect is achieved by increasing the contact area, through the arrangement of the first sealing ring and the second sealing ring, a gap between the plug board and the inner side wall of the second junction box can be further reduced, the sealing performance of the junction position is further improved, and the service life of the junction box is prolonged. And a relatively good isolation and sealing effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electrical wiring technology, specifically to protective sleeves for wiring terminals of electrical automation equipment. Background Technology

[0002] A terminal block is an accessory used for electrical connections. Its main function is to facilitate the connection and disconnection of wires without soldering or twisting. A terminal block usually consists of a metal strip encased in insulating plastic, with holes at both ends for inserting wires. A stable connection of the wires is ensured by screws or other fastening methods.

[0003] Most existing terminal blocks are simple small structures. Although they can achieve a certain wiring effect, their overall sealing performance is poor. External water sources can easily seep into the terminal block from the insertion hole or connection point. In harsh environments, they can only perform the wiring function and cannot meet the usability requirements. In severe cases, they may cause short circuits or damage to the internal circuits. Therefore, there is an urgent need for protective sleeves for the terminal blocks of electrical automation equipment to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a protective sleeve for the wiring terminals of electrical automation equipment to solve the problem of poor sealing mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective sleeve for the wiring terminals of electrical automation equipment, comprising: a first junction box and a second junction box; a plug-in plate is installed around one side of the first junction box, and the surface of the plug-in plate is connected to the inner wall of the second junction box; a sealing mechanism is sleeved on the surface of the plug-in plate; the sealing mechanism includes a first sealing ring and a second sealing ring; a set of clamping plates is installed on one side of both the upper and lower ends of the first and second sealing rings; and an insulating heat shrink tubing is sleeved on one side of both the first and second junction boxes.

[0006] Preferably, an arc-shaped groove is formed in the middle of the surface of each set of the card plates, and a connecting rod is installed at the bottom end of the arc-shaped groove.

[0007] Preferably, a limiting cylinder is inserted into the top end of the connecting rod, and the diameters of both the connecting rod and the limiting cylinder are smaller than the diameter of the arc groove.

[0008] Preferably, the limiting cylinder is provided with a return spring inside, and both ends of the return spring are connected to the top of the connecting rod.

[0009] Preferably, both the first junction box and the second junction box have an insertion hole in the middle of one side, and the insertion hole is a conical design.

[0010] Preferably, both the top of the first junction box and the second junction box are threaded with fastening bolts on one side.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting up the plug-in plate, the first junction box, and the second junction box, the plug-in plate can increase the contact area between the first junction box and the second junction box, thereby achieving a certain waterproof effect. The setting of the first sealing ring and the second sealing ring can further reduce the gap between the plug-in plate and the inner wall of the second junction box, thereby further improving the sealing performance of the wiring and achieving a better isolation and sealing effect.

[0013] By using insulating heat shrink tubing, which is then heated and shrunk to fit tightly onto the surfaces of the first junction box, the second junction box, and the wires, the sealing performance of the connection points can be improved. By sealing both the connection points and the connection points separately, the overall sealing effect of the structure can be improved, enabling it to meet the requirements of more working environments and enhancing the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the present invention.

[0018] In the diagram: 1. First junction box; 2. Second junction box; 3. Plug-in plate; 4. First sealing ring; 5. Second sealing ring; 6. Clamping plate; 7. Insulating heat shrink tubing; 8. Arc groove; 9. Connecting rod; 10. Limiting cylinder; 11. Return spring; 12. Insertion hole; 13. Fastening bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 and 2 One embodiment provided by this utility model:

[0021] The terminal protection sleeve for electrical automation equipment includes: a first junction box 1 and a second junction box 2. A plug-in plate 3 is installed around one side of the first junction box 1, and the surface of the plug-in plate 3 is connected to the inner wall of the second junction box 2. A sealing mechanism is fitted onto the surface of the plug-in plate 3. The sealing mechanism includes a first sealing ring 4 and a second sealing ring 5. A set of clamping plates 6 is installed on one side of the upper and lower ends of the first sealing ring 4 and the second sealing ring 5. An insulating heat shrink tube 7 is fitted onto one side of both the first junction box 1 and the second junction box 2.

[0022] The combined use of the plug plate 3, the first junction box 1, and the second junction box 2 allows the first junction box 1 to be inserted into the second junction box 2. The perimeter of the plug plate 3 then adheres tightly to the inner wall of the second junction box 2, increasing the contact area between them and providing a degree of waterproofing. The sealing mechanism further enhances the seal between the plug plate 3 and the inner wall of the second junction box 2. The double-partition design significantly improves the sealing performance at the connection point, resulting in a better isolation and sealing effect. The insulating heat shrink tubing 7, after inserting the two wires into the first and second junction boxes 1 and tightening the bolts 13, shrinks and presses against both sides of the first and second junction boxes 1 and the surface of the wires by heating the tubing, thus sealing the insertion hole 12 and further improving the sealing performance during wiring.

[0023] Please see Figure 2 , 3 4. One embodiment provided by this utility model:

[0024] A set of card plates 6 each has an arc-shaped groove 8 in the middle of its surface, and a connecting rod 9 is installed at the bottom of the arc-shaped groove 8;

[0025] The arc-shaped groove 8 provides good support and limiting for the connecting rod 9 and the limiting cylinder 10;

[0026] Furthermore, the top end of the connecting rod 9 is inserted into the limiting cylinder 10, and the diameters of both the connecting rod 9 and the limiting cylinder 10 are smaller than the diameter of the arc groove 8.

[0027] The combined use of connecting rod 9 and limiting cylinder 10 can provide a good connection and limiting effect for the first sealing ring 4 and the second sealing ring 5;

[0028] Furthermore, a return spring 11 is provided inside the limiting cylinder 10, and both ends of the return spring 11 are connected to the top of the connecting rod 9.

[0029] The combination of the limiting cylinder 10, the return spring 11 and the connecting rod 9 allows the return spring 11 to move the connecting rod 9 towards the center according to its own elasticity, so that the first sealing ring 4 and the second sealing ring 5 move towards the center, thereby ensuring that the first sealing ring 4 and the second sealing ring 5 can remain tightly attached to the surface of the plug plate 3, thus improving the stability of the anti-seepage.

[0030] Furthermore, an insertion hole 12 is provided in the middle of one side of both the first junction box 1 and the second junction box 2, and the insertion hole 12 is a conical design;

[0031] The insertion hole 12 is designed in a conical shape. One end of the wire is limited by the inner wall of the insertion hole 12, which helps the staff to insert it into the first junction box 1 and the second junction box 2 more quickly, thereby improving work efficiency.

[0032] Furthermore, fastening bolts 13 are threaded onto one side of the top of both the first junction box 1 and the second junction box 2;

[0033] The fastening bolt 13 allows workers to quickly connect the wires at both ends.

[0034] The workers first insert the two wires into the first junction box 1 and the second junction box 2 respectively. Then, they insert the first junction box 1 into the second junction box 2. The perimeter of the plug plate 3 is tightly attached to the inner wall of the second junction box 2, thereby increasing the contact area between the first junction box 1 and the second junction box 2 and providing a certain degree of waterproofing. The first sealing ring 4 and the second sealing ring 5 further reduce the gap between the plug plate 3 and the inner wall of the second junction box 2. The double-partition design significantly improves the sealing performance of the connection, thus achieving a better isolation and sealing effect. After tightening the fastening bolt 13 to complete the wiring work, the insulating heat shrink tubing 7 is moved to the intersection of the first junction box 1, the second junction box 2 and the wire. It is then heat-dried to shrink and adhere tightly to the surface of the first junction box 1, the second junction box 2 and the wire, thereby improving the sealing of the connection.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A protective sleeve for the terminals of electrical automation equipment, comprising a first junction box (1) and a second junction box (2), characterized in that: A plug plate (3) is installed around one side of the first junction box (1), and the surface of the plug plate (3) is connected to the inner wall of the second junction box (2). A sealing mechanism is fitted on the surface of the plug plate (3). The sealing mechanism includes a first sealing ring (4) and a second sealing ring (5). A set of clamping plates (6) is installed on one side of the upper and lower ends of the first sealing ring (4) and the second sealing ring (5). An insulating heat shrink tube (7) is fitted on one side of both the first junction box (1) and the second junction box (2).

2. The terminal protective sleeve for electrical automation equipment according to claim 1, characterized in that: An arc-shaped groove (8) is provided in the middle of the surface of a set of the card plates (6), and a connecting rod (9) is installed at the bottom of the arc-shaped groove (8).

3. The terminal protective sleeve for electrical automation equipment according to claim 2, characterized in that: The top end of the connecting rod (9) is inserted into a limiting cylinder (10), and the diameters of both the connecting rod (9) and the limiting cylinder (10) are smaller than the diameter of the arc groove (8).

4. The terminal protective sleeve for electrical automation equipment according to claim 3, characterized in that: The limiting cylinder (10) is equipped with a return spring (11), and both ends of the return spring (11) are connected to the top of the connecting rod (9).

5. The terminal protective sleeve for electrical automation equipment according to claim 1, characterized in that: Both the first junction box (1) and the second junction box (2) have an insertion hole (12) in the middle of one side, and the insertion hole (12) is a conical design.

6. The terminal protective sleeve for electrical automation equipment according to claim 1, characterized in that: Both the first junction box (1) and the second junction box (2) have a fastening bolt (13) threadedly connected to one side of their tops.

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