A high-voltage cable connector protection device

Abstract

This application discloses a high-voltage cable connector protection device, belonging to the field of cable connection devices. This protection device is applied to a socket, a plug inserted into the end of the socket, and a bolt and nut located at opposite ends of the socket and plug. A protective assembly is fitted over the bolt and nut. The protective assembly includes a first protective sleeve fitted over one end of the bolt, a second protective sleeve fitted over the nut, a plug-in rod disposed on the outer wall of the second protective sleeve, and a locking member disposed on the outer wall of the first protective sleeve. Through the design of the first protective sleeve, second protective sleeve, locking member, and extension member, this application achieves protection for the bolt and nut respectively by inserting the bolt end into the locking groove of the first protective sleeve, fitting the second protective sleeve over the other end of the bolt and the nut, inserting the plug-in rod into the slot, and restricting the movement of the plug-in rod with a locking block.

Description

Technical Field

[0001] This application relates to the field of cable connection device technology, specifically a high-voltage cable connector protection device. Background Technology

[0002] In the use of power cables in mines, explosion-proof fiber optic composite high-voltage cable connectors are used to connect the ends of two cables.

[0003] Connectors typically consist of a socket and two plugs. After the plugs and sockets are inserted, bolts are usually used to secure the flanges of the plugs and sockets. However, in mines, the high humidity can cause the bolts to rust. When the socket and plug need to be separated, the rust on the bolt threads makes it difficult to remove the nuts.

[0004] Therefore, this application provides a high-voltage cable connector protection device to solve the above problems. Utility Model Content

[0005] This application provides a high-voltage cable connector protection device, which aims to solve the problems mentioned in the background art. Existing connectors usually consist of a socket and two plugs. After the plugs and sockets are plugged in, bolts are usually used to fix the flanges of the plugs and sockets. However, in mines, the humidity is high, which can cause the bolts to rust. When the socket and plug need to be separated, the rust on the bolt threads makes it difficult to disassemble the nuts.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-voltage cable connector protection device, applied to a socket, a plug inserted into the end of the socket for cable connection, and bolts and nuts disposed at opposite ends of the socket and the plug for fixing the socket and the plug; For the protection of bolts and nuts: a protective assembly is fitted over the bolts and nuts for their protection; the protective assembly includes a first protective sleeve fitted over one end of the bolt for its protection, a second protective sleeve fitted over the nut for its protection, a plug-in rod disposed on the outer wall of the second protective sleeve for connecting the first and second protective sleeves, and a locking member disposed on the outer wall of the first protective sleeve for the plug-in rod to be inserted. By inserting the end of the bolt into the locking groove of the first protective sleeve, the rotation of the first protective sleeve is restricted. Then, the second protective sleeve is placed over the other end of the bolt and the nut. The plug rod is inserted into the slot. Pulling the pull rod causes the plug block to move away from the first protective sleeve. When the second protective sleeve is in contact with the plug flange, the pull rod is released. Under the restoring force of the elastic block, the teeth of the plug block and the plug rod mesh with each other, restricting the movement of the plug rod. In this way, the first protective sleeve and the second protective sleeve protect the bolt and the nut respectively. By sliding the middle extension tube and the end extension tube, bolts of different lengths are protected, thereby preventing corrosion of the threads of the bolt and the nut.

[0007] Preferably, for the stability of the first and second protective sleeves: one side of the first protective sleeve has a matching groove for fitting with the end of the bolt, and one side of the second protective sleeve has a mounting groove for fitting the nut. By adapting the shape of the first protective sleeve to the end of the bolt, the rotation of the first protective sleeve is restricted, and then the insertion rod is inserted into the mounting groove, thereby maintaining the stability of the connection between the first and second protective sleeves.

[0008] Preferably, to restrict the movement of the plug rod: the locking element includes a fixing block fixedly connected to the outer wall of the first protective sleeve for inserting the plug rod, a plug block slidably inserted inside the fixing block for locking the plug rod, a baffle fixedly connected to the top of the plug block for restricting the movement of the plug block, a pull rod fixedly connected to the top of the baffle for pulling the baffle, and an elastic block sleeved outside the pull rod for pushing the baffle. By compressing the restoring force of the elastic block, the baffle is pushed, causing the plug block and the teeth of the plug rod to mesh with each other, restricting the movement of the plug rod, thereby restricting the movement of the second protective sleeve.

[0009] Preferably, the outer wall of the fixing block has a slot for inserting the plug rod, the inside of the fixing block has a cavity for installing the elastic block, the bottom end and the bottom end of the inner wall of the cavity have a first insertion hole and a second insertion hole for inserting the plug and the pull rod, the top end of the plug rod has teeth for engaging with the plug, and the plug rod is fixedly connected to the contact part of the second protective sleeve.

[0010] Preferably, to maintain a seal between the first and second protective sleeves and the flange, sealing rings are fixedly connected to opposite sides of the first and second protective sleeves. Gaps are eliminated by pressing the sealing rings against the outer wall of the flange, as the first and second protective sleeves respectively come into contact with them.

[0011] Preferably, to accommodate bolts of different lengths: the second protective sleeve has an extension for extending its length on the side away from the first protective sleeve, and an annular groove for mounting the extension is provided on one side of the second protective sleeve. Bolts of different lengths are protected by sliding the middle extension tube and the end extension tube.

[0012] Preferably, the extension includes a central extension tube that slides through the annular groove to extend the length of the second protective sleeve, and an end extension tube that is sleeved inside the central extension tube to protect the bolt end.

[0013] Preferably, a first limiting plate for restricting the movement of the middle extension tube is fixedly connected to the outer wall of one end of the middle extension tube, a second limiting plate for restricting the movement of the end extension tube is fixedly connected to the inner wall of the other end of the middle extension tube, and a third limiting plate for cooperating with the second limiting plate is fixedly connected to the outer wall of one end of the end extension tube.

[0014] This application, through the design of a first protective sleeve, a second protective sleeve, a locking element, and an extension element, inserts the bolt end into the locking groove of the first protective sleeve, covers the other end of the bolt and the outside of the nut with the second protective sleeve, inserts the connector rod into the slot, and restricts the movement of the connector rod by the insert block. In this way, the first and second protective sleeves protect the bolt and nut respectively. By sliding the middle extension tube and the end extension tube, bolts of different lengths are protected, thereby preventing corrosion of the threads of the bolt and nut. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-voltage cable connector protection device; Figure 2 for Figure 1 A schematic diagram of the structure of the socket and plug; Figure 3 for Figure 1 Schematic diagram of the structure of the central protection component; Figure 4 for Figure 3 Schematic diagram of the structure of the first protective sleeve; Figure 5 for Figure 4 A schematic diagram of the structure in cross-section (front view); Figure 6 for Figure 3 Schematic diagram of the structure of the second protective sleeve; Figure 7 for Figure 6 Schematic diagram of the structure of the central extension tube; Figure 8 for Figure 6 A schematic diagram of the structure of the middle end extension tube.

[0016] In the picture: 1. Socket; 2. Plug; 3. Bolt; 4. Nut; 5. Protective component; 51. First protective sleeve; 52. Second protective sleeve; 53. Plug rod; 54. Locking element; 541. Fixing block; 542. Insert block; 543. Baffle; 544. Pull rod; 545. Elastic block; 55. Sealing ring; 56. Extension component; 561. Middle extension tube; 562. End extension tube; 563. First limiting plate; 564. Second limiting plate; 565. Third limiting plate. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] This embodiment provides a high-voltage cable connector protection device, such as... Figure 1-8 As shown, the protective device is applied to socket 1, plug 2 which is inserted at the end of socket 1 for cable connection, and bolt 3 and nut 4 which are provided at opposite ends of socket 1 and plug 2 for fixing socket 1 and plug 2. For the protection of bolt 3 and nut 4: a protective component 5 is fitted over bolt 3 and nut 4 for the protection of bolt 3 and nut 4; the protective component 5 includes a first protective sleeve 51 fitted over one end of bolt 3 for the protection of bolt 3, a second protective sleeve 52 fitted over nut 4 for the protection of nut 4, a plug-in rod 53 provided on the outer wall of the second protective sleeve 52 for the connection of the first protective sleeve 51 and the second protective sleeve 52, and a locking member 54 provided on the outer wall of the first protective sleeve 51 for the plug-in rod 53 to be inserted. By inserting the end of the bolt 3 into the locking groove of the first protective sleeve 51, the rotation of the first protective sleeve 51 is restricted. Then, the second protective sleeve 52 is fitted over the other end of the bolt 3 and the outside of the nut 4. The plug rod 53 is inserted into the slot. Pulling the pull rod 544 causes the plug block 542 to move away from the first protective sleeve 51. When the second protective sleeve 52 is in contact with the flange of the plug 2, the pull rod 544 is released. Under the push of the restoring force of the elastic block 545, the teeth of the plug block 542 and the plug rod 53 mesh with each other, restricting the movement of the plug rod 53. In this way, the first protective sleeve 51 and the second protective sleeve 52 protect the bolt 3 and the nut 4 respectively. By sliding the middle extension tube 561 and the end extension tube 562, bolts 3 of different lengths are protected, thereby preventing corrosion of the threads of the bolt 3 and the nut 4.

[0019] Furthermore, socket 1 and plug 2 form the existing model LBG11-630 mining explosion-proof fiber optic composite high-voltage cable connector, and bolt 3 and nut 4 are used for the fixed connection of socket 1 and plug 2 to the flange at opposite ends.

[0020] Specifically, for the stability of the first protective sleeve 51 and the second protective sleeve 52: one side of the first protective sleeve 51 has a matching groove for fitting the end of the bolt 3, and one side of the second protective sleeve 52 has an installation groove for fitting the nut 4. By matching the shape of the first protective sleeve 51 with the end of the bolt 3, the rotation of the first protective sleeve 51 is restricted. Then, the insertion rod 53 is inserted into the installation groove, thereby maintaining the stability of the connection between the first protective sleeve 51 and the second protective sleeve 52. The matching groove is adapted to the size of the bolt head 3, and the vertical cross-sectional dimensions of the installation groove are adapted to the vertical cross-sectional dimensions of the insertion part of the insertion rod 53 into the installation groove.

[0021] More specifically, in order to restrict the movement of the plug rod 53: the locking member 54 includes a fixing block 541 fixedly connected to the outer wall of the first protective sleeve 51 for inserting the plug rod 53, a plug block 542 slidably inserted inside the fixing block 541 for locking the plug rod 53, a baffle 543 fixedly connected to the top of the plug block 542 for restricting the movement of the plug block 542, a pull rod 544 fixedly connected to the top of the baffle 543 for pulling the baffle 543, and an elastic block 545 sleeved outside the pull rod 544 for pushing the baffle 543. The outer wall of the fixing block 541 has a slot for inserting the plug rod 53. The interior of the fixing block 541 has a cavity for installing the elastic block 545. The bottom and upper ends of the cavity's inner wall have a first insertion hole and a second insertion hole for inserting the plug block 542 and the pull rod 544, respectively. The top end of the plug rod 53 has teeth for engaging with the plug block 542. The plug rod 53 is fixedly connected to the second protective sleeve 52 at its contact point. By compressing the elastic block 545 and applying its restoring force, the baffle 543 is pushed, causing the teeth of the plug block 542 and the plug rod 53 to engage, restricting the movement of the plug rod 53, thereby restricting the movement of the second protective sleeve 52. The fixing block 541 is bonded to the outer wall of the first protective sleeve 51 at the contact point, and the plug rod 53 is bonded to the second protective sleeve 52 at the contact point. The size of the first plug hole is adapted to the size of the plug block 542, and the size of the second plug hole is adapted to the size of the pull rod 544. The plug block 542 meshes with the teeth. The size of the baffle 543 is larger than the size of the first plug hole. The baffle 543 is bonded and fixed to the contact point of the plug block 542 and the pull rod 544. The elastic block 545 is cylindrical and is sleeved on the outer wall of the pull rod 544. Both the elastic block 545 and the baffle 543 are set in the cavity. The elastic block 545 is always in a compressed state in the cavity.

[0022] Specifically, to maintain a seal between the first protective sleeve 51 and the second protective sleeve 52 and the flange, sealing rings 55 are fixedly connected to opposite sides of the first protective sleeve 51 and the second protective sleeve 52. By contacting the outer wall of the flange with the first protective sleeve 51 and the second protective sleeve 52 respectively, the sealing rings 55 are compressed, thereby eliminating gaps. Sealing rings 55 are respectively provided at opposite ends of the first protective sleeve 51 and the second protective sleeve 52, and the contact points between the sealing rings 55 and the first protective sleeve 51 and the second protective sleeve 52 are fixed by adhesive bonding.

[0023] Specifically, to accommodate bolts 3 of different lengths: an extension 56 for extending the length of the second protective sleeve 52 is provided on the side of the second protective sleeve 52 away from the first protective sleeve 51, and an annular groove for installing the extension 56 is provided on one side of the second protective sleeve 52. The extension 56 includes a central extension tube 561 that slides through the annular groove to extend the length of the second protective sleeve 52, and an end extension tube 562 that is sleeved inside the central extension tube 561 for protecting the end of the bolt 3. A first limiting plate 563 for restricting the movement of the central extension tube 561 is fixedly connected to the outer wall of one end of the central extension tube 561, a second limiting plate 564 for restricting the movement of the end extension tube 562 is fixedly connected to the inner wall of the other end of the central extension tube 561, and a third limiting plate 565 for cooperating with the second limiting plate 564 is fixedly connected to the outer wall of one end of the end extension tube 562. By sliding the central extension tube 561 and the end extension tube 562, bolts 3 of different lengths are protected. The annular groove is used to install and store the end extension tube 562 and multiple middle extension tubes 561. The two ends of the middle extension tube 561 are hollow, and one end of the end extension tube 562 is hollow. The middle extension tube 561 is sleeved on the outside of the end extension tube 562. The middle extension tube 561 is welded and fixed to the contact part with the first limiting plate 563, the contact part with the second limiting plate 564, and the contact part with the end extension tube 562. The shape of the annular groove corresponds to the shape formed by the middle extension tube 561 and the first limiting plate 563. When the middle extension tube 561 moves, the first limiting plate 563 is pressed against the inner wall of the annular groove to restrict the movement of the first limiting plate 563. The third limiting plate 565 is pressed against the second limiting plate 564 to restrict the movement of the end extension tube 562. This accommodates different bolt body lengths and protects the threads of the bolt 3.

[0024] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A high-voltage cable connector protection device, applied to a socket (1), a plug (2) inserted into the end of the socket (1) for cable connection, and a bolt (3) and a nut (4) disposed at opposite ends of the socket (1) and the plug (2) for fixing the socket (1) and the plug (2). characterized in that A protective assembly (5) is fitted over the bolt (3) and the nut (4) for the protection of the bolt (3) and the nut (4); The protective component (5) includes a first protective sleeve (51) sleeved on the outside of one end of the bolt (3) for protecting the bolt (3), a second protective sleeve (52) sleeved on the outside of the nut (4) for protecting the nut (4), a plug rod (53) disposed on the outer wall of the second protective sleeve (52) for connecting the first protective sleeve (51) and the second protective sleeve (52), and a locking member (54) disposed on the outer wall of the first protective sleeve (51) for inserting the plug rod (53).

2. The high voltage cable connector protection device of claim 1, wherein: The first protective sleeve (51) has a matching groove on one side for fitting the end of the bolt (3), and the second protective sleeve (52) has an installation groove on one side for fitting the nut (4).

3. The high voltage cable connector protection device of claim 1, wherein: The locking member (54) includes a fixing block (541) fixedly connected to the outer wall of the first protective sleeve (51) for inserting the plug rod (53), a plug block (542) slidably inserted inside the fixing block (541) for locking the plug rod (53), a baffle (543) fixedly connected to the top of the plug block (542) for restricting the movement of the plug block (542), a pull rod (544) fixedly connected to the top of the baffle (543) for pulling the baffle (543), and an elastic block (545) sleeved outside the pull rod (544) for pushing the baffle (543).

4. The high voltage cable connector protection device of claim 3, wherein: The outer wall of the fixing block (541) is provided with a slot for inserting the plug rod (53). The inside of the fixing block (541) is provided with a cavity for installing the elastic block (545). The bottom end and the bottom end of the inner wall of the cavity are respectively provided with a first insertion hole and a second insertion hole for inserting the plug block (542) and the pull rod (544). The top end of the plug rod (53) is provided with teeth for meshing with the plug block (542). The plug rod (53) is fixedly connected to the contact part of the second protective sleeve (52).

5. The high voltage cable connector protection device of claim 1, wherein: A sealing ring (55) for sealing is fixedly connected to one side of the first protective sleeve (51) and the second protective sleeve (52).

6. The high voltage cable connector protection device of claim 1, wherein: The second protective sleeve (52) has an extension (56) for extending the length of the second protective sleeve (52) on the side away from the first protective sleeve (51), and an annular groove for installing the extension (56) is provided on one side of the second protective sleeve (52).

7. The high voltage cable connector protection device of claim 6, wherein: The extension (56) includes a central extension tube (561) that slides through the annular groove to extend the length of the second protective sleeve (52) and an end extension tube (562) that is sleeved inside the central extension tube (561) for end protection of the bolt (3).

8. The high voltage cable connector protection device of claim 7, wherein: A first limiting plate (563) for restricting the movement of the middle extension tube (561) is fixedly connected to the outer wall of one end of the middle extension tube (561), a second limiting plate (564) for restricting the movement of the end extension tube (562) is fixedly connected to the inner wall of the other end of the middle extension tube (561), and a third limiting plate (565) for cooperating with the second limiting plate (564) is fixedly connected to the outer wall of one end of the end extension tube (562).

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