Medium-voltage line emergency quick connection rod

Abstract

The invention relates to a medium-voltage line emergency quick connection rod, and the rod comprises a connection rod body which is internally provided with a connection channel; the fixed end of the first cable connecting part is arranged at one end of the connecting channel in a penetrating manner; the fixed end of the second cable connecting part is arranged at the other end of the connecting channel in a penetrating manner, and the first cable connecting part and the second cable connecting part are conductively connected in the connecting channel; the mounting seat is connected to the connecting rod body; the emergency quick connecting rod is convenient to install, simple in structure, low in manufacturing cost and easy to popularize.

Description

Technical Field

[0001] The invention relates to the technical field of power operation and maintenance, and in particular to an emergency quick-connect rod for a medium-voltage line. Background Art

[0002] During the inspection and construction, and fault repair of medium-voltage lines, the existing medium-voltage emergency generators and bypass operating systems still have great limitations in their non-stop access operations, which will result in line shutdowns and prolonged external power outages during inspection and construction, and fault repairs. Access to medium-voltage emergency generators and bypass operating systems requires staff to climb poles and perform high-altitude operations to connect the emergency power supply cables to the pre-installed access devices.

[0003] In the prior art, a Chinese invention patent with patent application number CN202211181390.8 discloses a quick socket, a quick plug and a quick power supply connection device. In order to lock the quick plug and the quick socket after being plugged together, the socket part of the quick socket is provided with a plug-in part, and the plug-in part includes a press-fit assembly, a shell, a sliding sleeve and an end cover. When in use, first extend the fixing part into the area between the support seat and the mounting plate, pass the bolt of the press-fit bolt assembly through the through hole with both ends protruding from the mounting plate and the bottom surface of the support seat respectively, then push the support column between the support seat and the mounting plate, and finally lock the bolt with the nut of the bolt assembly.

[0004] However, the power supply connection device disclosed in the above patent has a complex structure, high manufacturing cost, and low reuse rate. Therefore, there is an urgent need for an emergency quick-connect device with a simple structure, low cost, and easy operation to solve the problem of the complex structure of the existing cable quick-connect device. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a medium voltage line emergency quick-connect rod to solve the above problems.

[0006] The present invention provides the following technical solutions: a medium-voltage line emergency quick-connect rod, a connecting rod body, a connecting channel opened inside the connecting rod body; a first cable connecting part, a fixed end of the first cable connecting part is passed through one end of the connecting channel, and the connecting end of the first cable connecting part is sleeved with a first insulating sleeve, and the first insulating sleeve can be used for an external power grid access cable to be repaired to pass through and electrically connect with the first cable connecting part; a second cable connecting part, a fixed end of the second cable connecting part is passed through the other end of the connecting channel, and the first cable connecting part and the second cable connecting part are conductively connected in the connecting channel, the connecting end of the second cable connecting part is a bare conductive material, the cable of the external emergency power supply is electrically connected to the connecting end of the second cable connecting part, and the connecting end of the second cable connecting part is detachably sleeved with a second insulating sleeve; and a mounting seat, which is connected to the connecting rod body.

[0007] Furthermore, the extension directions of the first cable connecting portion and the second cable connecting portion are perpendicular.

[0008] Furthermore, a length extension direction of the second cable connecting portion is the same as a length extension direction of the connecting rod body.

[0009] Furthermore, the first cable connecting portion is provided with a cable locking groove, and the cable locking groove connects the power network to the cable and fixes it.

[0010] Furthermore, the second cable connecting portion is a rod-shaped structure, and a limiting portion is provided at the connecting end of the second cable connecting portion, and the limiting portion is used for hooking and connecting the cable of the external emergency power supply.

[0011] Furthermore, the cable of the external emergency power supply is hooked and connected using a drainage wire clamp; the upper surface of the limiting portion is a "human" shaped structure, which is compatible with the drainage wire clamp.

[0012] Furthermore, an annular portion is provided at the end of the second insulating sleeve, and the annular portion can pass through the connecting end of the second cable connecting portion.

[0013] Furthermore, a slot is provided at one end of the connecting rod body facing the second cable connecting portion, and the annular portion can be sleeved in the slot.

[0014] Furthermore, the fixed end of the first cable connecting portion contacts the fixed end of the second cable connecting portion and is fixedly connected via a connecting member.

[0015] The inventor also provides a medium voltage line emergency quick-connect device, comprising:

[0016] The medium voltage line emergency quick-connect rod described in any of the above technical solutions, wherein the number of the emergency quick-connect rods is 3, and each of the emergency quick-connect rods is connected in parallel to the electric pole through the mounting seat.

[0017] The present invention has the following beneficial technical effects:

[0018] Firstly, compared with the prior art, the emergency quick-connect rod has a simple structure, low manufacturing cost, convenient installation and easy promotion; secondly, the second cable connection part provided by the medium-voltage line emergency quick-connect rod can be used for repeated hanging of the cable of the external emergency power supply, which improves the utilization rate of the emergency quick-connect rod, and the rod-shaped second cable connection part also provides a larger installation space. After the cable of the external emergency power supply is pulled to a certain height, it can be directly hooked on the limit part. For short-term maintenance, especially for maintenance with low positioning and calibration requirements before installation, it has the advantages of easy implementation, not easy to fall off and low cost; in addition, when not in use, the second insulating sleeve can be put on the second cable connection part, which is convenient for maintenance personnel to operate and can also improve maintenance efficiency.

[0019] Finally, the medium-voltage line emergency quick-connect rod is a single cable connector. When in use, three medium-voltage line emergency quick-connect rods are installed to provide quick-connect connections for the three-phase cables. Compared with traditional three-phase cable connectors, it is lighter. If damage occurs, only the damaged medium-voltage line emergency quick-connect rod needs to be replaced, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a medium voltage line emergency quick connecting rod of the present invention without the first insulating sleeve and the second insulating sleeve;

[0021] Figure 2 It is a schematic diagram of the overall structure of a medium voltage line emergency quick-connect rod of the present invention;

[0022] Figure 3 A schematic diagram of a medium voltage line emergency quick connector connected to a cable of an emergency power supply according to the present invention;

[0023] Figure 4 It is a schematic diagram of a second insulating sleeve of a medium voltage line emergency quick connecting rod of the present invention;

[0024] Figure 5 The present invention is a schematic diagram of the connection of a medium voltage line emergency quick connecting rod.

[0025] The reference numerals in the figure are:

[0026] 1. Connecting rod body;

[0027] 11. Card slot;

[0028] 2. a first cable connection portion;

[0029] 21. A first insulating sleeve;

[0030] 22. A fixed end of the first cable connection portion;

[0031] 23. A connection end of the first cable connection portion;

[0032] 24. Cable locking slot;

[0033] 3. A second cable connection portion;

[0034] 31. Second insulating sleeve;

[0035] 311, annular part;

[0036] 32. A fixed end of the second cable connection portion;

[0037] 33. A connection end of a second cable connection portion;

[0038] 34. Limiting part;

[0039] 4. Mounting seat;

[0040] 5. Grid access cables;

[0041] 6. Cables for external emergency power supply;

[0042] 7. Drainage wire clamp. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Embodiment 1

[0045] See also Figures 1 to 4 , this embodiment provides a medium voltage line emergency quick-connect rod, including:

[0046] A connecting rod body 1, with a connecting passage opened inside; a first cable connecting part 2, with a fixed end 22 of the first cable connecting part passing through one end of the connecting passage, and a connecting end 23 of the first cable connecting part being sleeved with a first insulating sleeve 21, wherein the first insulating sleeve 21 can be used for an external power grid access cable 5 to be repaired to pass through and electrically connect with the first cable connecting part 2; a second cable connecting part 3, with a fixed end 32 of the second cable connecting part passing through the other end of the connecting passage, and the first cable connecting part 2 and the second cable connecting part 3 are conductively connected in the connecting passage, the connecting end 33 of the second cable connecting part is a bare conductive material, a cable 6 of an external emergency power supply is electrically connected to the connecting end 33 of the second cable connecting part, and the connecting end 33 of the second cable connecting part is detachably sleeved with a second insulating sleeve 31; a mounting seat 4, which is connected to the connecting rod body 1.

[0047] The connecting rod body 1 is made of high-polymer blended epoxy material with high voltage insulation, and plays a role in fixing the first cable connection part 2 and the second cable connection part 3. In the process of making the medium-voltage line emergency quick-connect rod, the first cable connection part 2 and the second cable connection part 3 can be conductively connected and then placed in a mold, and then insulating material is poured into the mold to fix the fixed end 22 of the first cable connection part and the fixed end 32 of the second cable connection part in the connecting rod body 1, and strengthen the conductive connection relationship between the two.

[0048] The conductive connection between the first cable connection part 2 and the second cable connection part 3 can be a direct contact connection or a conductive relationship formed between the two by connecting through a conductive material. The first cable connection part 2 and the second cable connection part 3 are made of conductive materials, and the first insulating sleeve 21 and the second insulating sleeve 31 are respectively covered outside the two connection parts to play a good insulating role. Openings are set at both ends of the first insulating sleeve 21, one end of which is used to be inserted on the first cable connection part 2, and the other end is used for the external power grid access cable 5 to be repaired to be inserted and connected to the first cable connection part 2. The first insulating sleeve 21 can protect the first cable connection part 2 and the exposed cable connected thereto; the second insulating sleeve 31 is sleeved on the second cable connection part 3. When the second cable connection part 3 is to be connected to the outside, the staff climbs the pole to remove the second insulating sleeve 31, so that the connection end 33 of the second cable connection part is exposed, and the cable 6 of the external emergency power supply can be connected thereto.

[0049] The second cable connection part 3 provided by the medium voltage line emergency quick connector can be repeatedly connected to the cable 6 of the external emergency power supply. When not in use, the second insulating sleeve 31 can be sleeved on the second cable connection part 3. The quick connector is easy to install, simple in structure, low in manufacturing cost, and easy to promote.

[0050] In this embodiment, the extension direction of the first cable connection part 2 is perpendicular to that of the second cable connection part 3. After the medium voltage line emergency quick connection rod is installed, the first cable connection part 2 extends upward, so that the cable connected to the high power grid can be directly connected to the first cable connection part 2 without bending, and the second cable connection part 3 will extend in a direction perpendicular to the first cable connection part 2. The second cable connection part 3 can be set to extend in the horizontal direction, so that the cable 6 of the external emergency power supply can be hooked on the second cable connection part 3 to prevent it from falling off.

[0051] In this embodiment, the length extension direction of the second cable connection part 3 is the same as the length extension direction of the connecting rod body 1. After installation, the second cable connection part 3 and the connecting rod body 1 are both extended in the horizontal direction. The mounting seat 4 will be installed at the end of the connecting rod body 1 away from the second cable connection part 3, that is, the mounting seat 4, the connecting rod body 1 and the second cable connection part 3 are located on the same straight line. The length of the connecting rod body 1 is to provide an insulation distance between the second cable connection part 3, the first cable connection part 2 and the electric pole and other conductive parts, and the creepage distance provided by the connecting rod body 1 is at least 383mm.

[0052] In this embodiment, the first cable connection part 2 is provided with a cable locking groove 24, and the cable locking groove 24 is for the power grid access cable 5 to be repaired to extend into and fix it. The cable locking groove 24 is provided with multiple sets of fixing bolts at intervals along the length direction of the first cable connection part 2, and the multiple sets of fixing bolts can effectively fix the connected cables to prevent the connected cables from being dislodged from the first cable connection part 2 due to wind force, causing safety hazards. Of course, the cable locking groove 24 can also directly purchase existing aluminum wire clamps.

[0053] In this embodiment, if Figure 3 As shown, the second cable connection part 3 is a rod-shaped structure, and the connection end 33 of the second cable connection part is provided with a limiting part 34, and the limiting part 34 is for the cable 6 of the external emergency power supply to be hooked and connected. The cable 6 of the external emergency power supply can be used in conjunction with a drainage wire clamp 7, which is used to temporarily fix the wires in a high-voltage live environment. The drainage wire clamp 7 can be made of a clamp block, a slot, a diamond clamp, etc. to achieve safe fixation of the wires. The cross-section of the limiting part 34 is smaller than the cross-sections at both ends of the second cable connection part 3 to prevent the cable hooked on the limiting part 34 from sliding left and right along the second cable connection part 3 and falling off. The rod-shaped second cable connection part 3 provides a larger installation space. After the cable 6 of the external emergency power supply is pulled to a certain height, it can be directly hooked on the limiting part 34. For a short time, especially for maintenance with low positioning and calibration requirements before installation, it has the advantages of being easy to implement, not easy to fall off, and low cost.

[0054] In this embodiment, the upper surface of the limiter 34 is a herringbone structure. Its beneficial effect is that it can increase the friction between the cable 6 of the external emergency power supply and the limiter 34, so that the hooked cable is not easy to deviate. By providing a diamond-shaped clamp, it can cooperate with the herringbone shape of the conductive rod on the quick-connect rod, so as to achieve rapid fixation. Of course, other structures that can enhance friction can also be used on the limiter 34.

[0055] In this embodiment, the end of the second insulating sleeve 31 is provided with an annular portion 311, and the annular portion 311 can be passed through the outside of the connection end 33 of the second cable connection part. When the staff climbs the pole to operate, their working space is small, and there is no suitable space to place the second insulating sleeve 31 after it is removed from the second cable connection part 3. If it is thrown to the ground, it needs to be picked up and installed again after the maintenance is completed, which is cumbersome. However, directly passing the second insulating sleeve 31 through its annular portion 311 directly on the outside of the second cable connection part 3 can facilitate the staff to place it, and at the same time can improve the maintenance efficiency.

[0056] In this embodiment, a slot 11 is provided at one end of the connecting rod body 1 facing the second cable connecting portion 3, and the annular portion 311 can be sleeved in the slot 11. The annular portion 311 or the second insulating sleeve 31 is made of silicone or rubber, and the position of the annular portion 311 has a certain elasticity, and can be easily inserted into or pulled out of the slot 11 after appropriate deformation. The second insulating sleeve 31 is fixed by the slot 11 to prevent it from affecting the access space of the cable 6 of the external emergency power supply.

[0057] In this embodiment, the fixed end 22 of the first cable connection part is in contact with the fixed end 32 of the second cable connection part and connected via a connector. Specifically, the fixed end 22 of the first cable connection part is provided with a connection hole, and the fixed end 32 of the second cable connection part is also provided with a connection hole, and a bolt is inserted into the connection holes of the two to tightly connect the two together and realize electrical conduction between the two.

[0058] like Figure 5 As shown, the inventor also provides a medium voltage line emergency quick-connect device, comprising:

[0059] The medium voltage line emergency quick-connect rod described in any of the above technical solutions, wherein the number of the emergency quick-connect rods is 3, and each of the emergency quick-connect rods is connected in parallel to the electric pole through the mounting seat 4.

[0060] In this embodiment, the medium voltage line emergency quick-connect rod can be pre-installed on the electric pole through the mounting seat 4, and the first cable connection part 2 is pre-connected with the grid access cable 5. When maintenance is required, the cable of the emergency power supply is connected to the second cable connection part 3. The medium voltage line emergency quick-connect rod is a single cable connector. When in use, three medium voltage line emergency quick-connect rods are installed to provide quick connection for the three-phase cables. Compared with the traditional three-phase cable connector, it is lighter and more convenient. If it is damaged, only the damaged medium voltage line emergency quick-connect rod needs to be replaced, and the maintenance cost is reduced.

[0061] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A medium voltage line emergency quick-connect rod, characterized in that: include: A connecting rod body, wherein a connecting channel is provided inside the connecting rod body; a first cable connection part, wherein a fixed end of the first cable connection part is inserted through one end of the connection passage, and a first insulating sleeve is sleeved on the connection end of the first cable connection part, and the first insulating sleeve can be inserted into the access cable of the external power grid to be repaired and electrically connected to the first cable connection part; a second cable connection part, wherein a fixed end of the second cable connection part is passed through the other end of the connection channel, and the first cable connection part and the second cable connection part are conductively connected in the connection channel, the connection end of the second cable connection part is a bare conductive material, the cable of the external emergency power supply is electrically connected to the connection end of the second cable connection part, and the connection end of the second cable connection part is detachably covered with a second insulating sleeve; And a mounting seat connected to the connecting rod body.

2. A medium voltage line emergency quick-connect rod according to claim 1, characterized in that: The extending directions of the first cable connecting portion and the second cable connecting portion are perpendicular to each other.

3. The medium voltage line emergency quick-connect rod according to claim 1, characterized in that: The length extension direction of the second cable connecting portion is the same as the length extension direction of the connecting rod body.

4. The medium voltage line emergency quick-connect rod according to claim 1, characterized in that: The first cable connecting portion is provided with a cable locking groove, and the cable locking groove is used for the external power grid access cable to be repaired to extend into and fix it.

5. The medium voltage line emergency quick-connect rod according to claim 1, characterized in that: The second cable connecting portion is a rod-shaped structure, and a limiting portion is provided at a connecting end of the second cable connecting portion, and the limiting portion is used for hooking and connecting a cable of the external emergency power supply.

6. A medium voltage line emergency quick-connect rod according to claim 5, characterized in that: The cable of the external emergency power supply is hooked and connected using a drainage wire clamp; the upper surface of the limiting portion is a "human" shaped structure, which is compatible with the drainage wire clamp.

7. The medium voltage line emergency quick-connect rod according to claim 1, characterized in that: An annular portion is disposed at the end of the second insulating sleeve, and the annular portion can penetrate the connecting end of the second cable connecting portion.

8. The medium voltage line emergency quick-connect rod according to claim 7, characterized in that: A slot is disposed at one end of the connecting rod body facing the second cable connecting portion, and the annular portion can be sleeved in the slot.

9. The medium voltage line emergency quick-connect rod according to claim 1, characterized in that: The fixed end of the first cable connecting portion contacts the fixed end of the second cable connecting portion and is fixedly connected via a connecting member.

10. A medium voltage line emergency quick-connect device, characterized in that: It comprises the medium voltage line emergency quick connecting rod as described in any one of claims 1 to 9, and the number of the medium voltage line emergency quick connecting rods is 3, and each of the medium voltage line emergency quick connecting rods is connected in parallel to the electric pole through the mounting seat.

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