CN205845808U - A cable connector for outdoor knife switch - Google Patents

Abstract

The utility model provides a cable joint for outdoor knife switch, the public joint is connected with the low reaches cable, be equipped with the upstream cable on the female joint, be equipped with the contact pin in the public joint, the low reaches cable is worn to be established in holding the hole and is connected with the contact pin electricity; the improved grounding switch is characterized in that a plug block matched with a contact pin is arranged in the female connector, a jack is formed in the plug block, a conducting strip is arranged in the jack, an upstream cable is electrically connected with the contact pin through the conducting strip, the upstream cable is electrically connected with a grounding switch blade or an isolating switch, a downstream cable is electrically connected with a load or a power transmission line, when the grounding switch blade or the isolating switch is replaced, the grounding switch blade or the isolating switch can be conveniently and electrically connected with the downstream cable through the female connector and the upstream cable, when the grounding switch blade or the isolating switch is replaced, the downstream cable does not need to be transformed or replaced, the grounding switch blade or the isolating switch is very convenient to replace, and the replacement efficiency of the grounding switch blade.

Description

A cable connector for outdoor knife switch

technical field

The utility model relates to power grid accessories, in particular to a cable joint used for an outdoor knife switch.

Background technique

As the coverage of the power grid continues to expand, disconnectors and grounding switches are more and more used in the power grid. During the long-term operation of the power grid, the isolating switch and the grounding switch are operated outdoors for a long time, causing the components of the isolating switch and the grounding switch to corrode and the transmission mechanism to be stuck, which in turn affects the safe operation of the power grid. In order to improve the reliability of power grid operation, it is necessary to regularly replace power distribution devices such as isolating switches and grounding switches in the power grid.

In the prior art, the isolating switch and the grounding switch are directly connected to the downstream cable. When replacing the isolating switch and the grounding switch, since the isolating switch and the grounding switch have different models, the length of the downstream cable may not be sufficient during the actual implementation, resulting in The isolating switch and the grounding switch need to be replaced together with the downstream cables when they are replaced, which makes it difficult to replace the isolating switch and the grounding switch, and the replacement cycle is long.

Contents of the invention

The utility model provides a cable joint for an outdoor knife switch, aiming at overcoming the shortage of difficulty in replacing the outdoor knife switch applied to the power grid in the prior art.

In order to solve the above technical problems, the utility model adopts the following technical scheme: a cable connector for outdoor knife switch, including a male connector and a female connector, the male connector is connected with a downstream cable, and the female connector is provided with Upstream cable, the outer casing of the upstream cable is provided with a corrugated tube, the male connector is provided with a housing hole penetrating through the male connector, the axis of the housing hole is coaxial with the axis of the male connector, and a pin is provided in the housing hole , the axis of the pin is parallel to the axis of the male connector, the downstream cable is passed through the receiving hole and electrically connected to the pin, the pin is fixed in the male connector through an insulating plate, and the insulating plate is located on the socket Between the needle and the downstream cable; the female connector is provided with a thread holding hole through the female connector, the axis of the thread holding hole is coaxial with the axis of the female connector, and the thread holding hole is also provided with a The socket is provided with a socket, and a conductive sheet is provided in the socket, and the upstream cable is electrically connected to the conductive sheet. After the male connector and the female connector are matched, the upstream cable passes through the conductive sheet and the pin electrical connection; the cable connector also includes a lock nut that locks the male connector and the female connector together, the male connector is provided with a first external thread that cooperates with the lock nut, and the female connector is provided with a locking nut. The second external thread that fits the tight nut.

In an optional solution, the plug protrudes from the female joint along the axis of the female joint. After the male joint is mated with the female joint, the length of the plug extending into the receiving hole is not less than the radius of the plug. A third waterproof sleeve that is interference-fitted with the receiving hole is also sleeved. The plug-in block is inserted into the receiving hole, and a third waterproof sleeve is sheathed on the plug-in block, which greatly improves the waterproof performance of the cable joint, thereby optimizing the use performance of the cable joint.

In an optional solution, the lock nut is provided with a first internal thread that cooperates with the first external thread, and the lock nut is also provided with a second internal thread that cooperates with the second external thread. The lock nut is provided with a first internal thread and a second internal thread, the male joint and the female joint are conveniently assembled, and the performance of the cable joint is optimized.

As an optional solution, the male joint is also provided with a first locking block for locking the downstream cable on the male joint, and a first passage for the downstream cable to pass through is opened on the first locking block. hole, the first locking block is screwed to the male joint, a first waterproof sleeve is provided between the downstream cable and the first through hole, and the first waterproof sleeve is bonded to the side of the first through hole on the wall. The first locking block is used to fix the downstream cable on the male connector, so that the downstream cable and the contact pin have good connection performance; the first waterproof sleeve plays a waterproof role, optimizing the waterproof performance of the cable joint.

An optional solution, the female joint is provided with a second locking block for locking the upstream cable on the female joint, and the second locking block is provided with a second through hole for the upstream cable to pass through , the second locking block is screwed to the female joint, a second waterproof sleeve is provided between the upstream cable and the second through hole, and the second waterproof sleeve is bonded to the side wall of the second through hole superior. The second locking block is used to lock the upstream cable on the female connector, so that the upstream cable and the female connector have a good connection performance; the second waterproof sleeve plays a waterproof role, optimizing the waterproof performance of the cable connector.

In an optional solution, the insulating plate and the male connector are of an integrated structure; the plug block and the female connector are of an integrated structure. The connection between the male connector and the insulating plate is reliable, which prolongs the service life of the male connector; the connection between the plug block and the female connector is reliable, which prolongs the service life of the female connector.

Compared with the prior art, the utility model provides a cable connector for outdoor knife switch, which has the following advantages: the male connector is connected with a downstream cable, the female connector is provided with an upstream cable, and the upstream cable The outer jacket is provided with a bellows, the male connector is provided with pins, the downstream cable is passed through the receiving hole and electrically connected with the pins; the female connector is provided with a plug that matches the pins, and the There is a socket on the plug block, and a conductive sheet is provided in the socket. The upstream cable is electrically connected to the contact pin through the conductive sheet, the upstream cable is electrically connected to the grounding switch or a disconnector, and the downstream cable is electrically connected to the load or the transmission line. , When replacing the grounding switch or isolating switch, the grounding switch or isolating switch can be easily electrically connected to the downstream cable by using the female connector and the upstream cable. When replacing the grounding switch or isolating switch, there is no need to modify or modify the downstream cable It is very convenient to replace the grounding knife or isolating switch, which greatly improves the replacement efficiency of the grounding knife or isolating switch and reduces the labor intensity of technicians;

The male connector and the female connector are locked together by the lock nut, and the male connector and the female connector have good electrical conductivity, which optimizes the performance of the cable connector.

Description of drawings

Accompanying drawing 1 is the sectional view of a kind of cable joint used for outdoor knife switch of the present utility model.

detailed description

A cable connector for outdoor knife switch of the present utility model will be further described below in conjunction with the accompanying drawings. As shown in Figure 1, a cable connector for an outdoor knife switch includes a male connector 1 and a female connector 2, the male connector 1 is connected with a downstream cable 3, and the downstream cable 3 is connected to a load or a transmission network, the An upstream cable 4 is provided on the female connector 2, and the upstream cable 4 is connected to a disconnector or a grounding switch. The upstream cable 4 is covered with a corrugated tube, which protects the upstream cable 4 and extends the life of the upstream cable 4. The service life improves the stability of the power grid during operation. The cable joint also includes a locking nut 9 that locks the male joint 1 and the female joint 2 together. The male joint 1 is provided with a The first external thread 10 of the female joint 2 is provided with a second external thread 11 that cooperates with the lock nut 9; When mating, the male joint 1 and the female joint 2 need to have a high matching accuracy. In order to reduce the manufacturing cost of the male joint 1 and the female joint 2, the lock nut 9 is provided with a first thread that cooperates with the first external thread 10 internal thread, the lock nut 9 is also provided with a second internal thread that cooperates with the second external thread 11, the pitch of the first internal thread is equal to the pitch of the second internal thread, and the diameter of the first internal thread is not equal to the second internal thread. The diameter of the internal thread, this setting makes it easy to assemble the male connector 1 and the female connector 2, and optimizes the performance of the cable connector;

As shown in FIG. 1 , the male connector 1 is provided with a receiving hole through the male connector 1 , the axis of the receiving hole is coaxial with the axis of the male connector 1 , and a pin 5 is arranged in the receiving hole. The axis of the pin 5 is parallel to the axis of the male connector 1, the downstream cable 3 is passed through the receiving hole and electrically connected to the pin 5, the pin 5 is fixed in the male connector 1 through an insulating plate 6, the The insulating plate 6 is located between the pin 5 and the downstream cable 3, and the insulating plate 6 and the male plug are integrated to prolong the service life of the male plug; The first locking block 13 on the male connector 1, the first locking block 13 is used to lock the downstream cable 3 on the male connector 1, so that the downstream cable 3 and the male connector 1 have a good connection performance, said The first locking block 13 is provided with a first through hole 14 through which the downstream cable 3 passes, and the first locking block 13 is screwed to the male connector 1, and the downstream cable 3 is connected to the first through hole 14 A first waterproof sleeve 15 is arranged between them, and the first waterproof sleeve 15 is glued on the side wall of the first through hole 14, and the first waterproof sleeve 15 is interference fit with the downstream cable 3, so that the first waterproof sleeve 15 Has good waterproof performance;

As shown in Figure 1, the female joint 2 is provided with a wire holding hole that runs through the female joint 2. The axis of the wire holding hole is coaxial with the axis of the female joint 2. The plug block 7 matched with the pin 5, the plug block 7 and the female connector 2 are integrated to prolong the service life of the female connector 2; the plug block 7 is provided with a socket, and the conductive sheet 8 is arranged in the socket , the conductive sheet 8 is bonded in the jack, the upstream cable 4 is electrically connected to the conductive sheet 8, after the male joint 1 and the female joint 2 are matched, the upstream cable 4 is electrically connected to the pin 5 through the conductive sheet 8; the female The joint 2 is provided with a second locking block 16 for locking the upstream cable 4 on the female joint 2, and the second locking block 16 is provided with a second through hole 17 for the upstream cable 4 to pass through. The second locking block 16 is threadedly connected to the female joint 2, and a second waterproof sleeve 18 is provided between the upstream cable 4 and the second through hole 17, and the second waterproof sleeve 18 is bonded to the second through hole. On the side wall of 17, the second waterproof cover 18 is interference fit with the upstream cable 4 to optimize the waterproof performance of the second waterproof cover 18;

In order to improve the waterproof performance between the male joint 1 and the female joint 2, as shown in Figure 1, the plug 7 protrudes from the female joint 2 along the axis of the female joint 2, and after the male joint 1 and the female joint 2 are mated, the plug The length that the block 7 extends into the accommodation hole is not less than the radius of the insert block 7, and the third waterproof sleeve 12 that is interference fit with the accommodation hole is also sleeved on the insert block 7, and the length that the insert block 7 extends into the accommodation hole is less than the insertion block 7. When the radius of the block 7 is small, the mating length between the insert block 7 and the receiving hole is relatively short, which greatly reduces the waterproof performance between the male joint 1 and the female joint 2 .

In the specific application process of the above technical solution, the distance between the isolating switch or the grounding switch and the downstream cable 3 can be easily compensated by using the female connector 2 and the upstream cable 4, and there is no need to modify the downstream cable when replacing the grounding switch or the isolating switch 3. It is easy to replace the grounding switch or isolating switch.

The above are only preferred implementations of the present utility model, aiming to embody the outstanding technical effects and advantages of the present utility model, and are not intended to limit the technical solution of the present utility model. Those skilled in the art should understand that all modifications, changes or replacement technical features made based on the technical content of the present utility model shall fall within the technical scope of the appended claims of the present utility model.

Claims (6)

1. the cable connector for outdoor switch blade switch, it is characterised in that: include male joint (1) and female joint (2), described The upper connection of male joint (1) has downstream cables (3), described female joint (2) to be provided with upstream cable (4), and described upstream cable (4) is outward Being arranged with corrugated tube, offer the receiving hole running through male joint (1) in described male joint (1), the axis of described receiving hole is with public The axis coaxle of joint (1), is provided with contact pin (5) in described receiving hole, the axis of described contact pin (5) is parallel to male joint (1) Axis, in described downstream cables (3) is located in receiving hole and electrically connects with contact pin (5), and described contact pin (5) passes through insulation board (6) Being fixed in male joint (1), described insulation board (6) is positioned between contact pin (5) and downstream cables (3)；Described female joint is opened in (2) It is provided with the axis coaxle of the appearance string holes running through female joint (2), the axis of described appearance string holes and female joint (2), in described appearance string holes It is additionally provided with the inserted block (7) coordinated with contact pin (5), described inserted block (7) offers jack, in described jack, be provided with conducting strip (8), Described upstream cable (4) electrically connects with conducting strip (8), and after male joint (1) coordinates with female joint (2), upstream cable (4) is by leading Electricity sheet (8) electrically connects with contact pin (5)；This cable connector also includes locking male joint (1) and female joint (2) being locked together Nut (9), described male joint (1) is provided with the first external screw thread (10) coordinated with locking nut (9), in described female joint (2) It is provided with the second external screw thread (11) coordinated with locking nut (9).

A kind of cable connector for outdoor switch blade switch the most according to claim 1, it is characterised in that: described inserted block (7) axis direction along female joint (2) protrudes female joint (2), and after male joint (1) coordinates with female joint (2), inserted block (7) stretches into The length of receiving hole, not less than the radius of inserted block (7), described inserted block (7) is also arranged with the 3rd with receiving hole interference fit and prevents Water jacket (12).

A kind of cable connector for outdoor switch blade switch the most according to claim 1, it is characterised in that: described locking screw Female (9) are provided with the first female thread coordinated with the first external screw thread (10), described locking nut (9) are additionally provided with and the second outer spiral shell The second female thread that stricture of vagina (11) coordinates.

A kind of cable connector for outdoor switch blade switch the most according to claim 1, it is characterised in that: described male joint (1) the first latch segment (13) downstream cables (3) being locked in male joint (1), described first latch segment (13) it are additionally provided with on On offer the first through hole (14) making downstream cables (3) pass, described first latch segment (13) is threadedly attached in public access On head (1), between described downstream cables (3) and the first through hole (14), it is provided with the first waterproof jacket (15), described first waterproof jacket (15) it is bonded on the sidewall of the first through hole (14).

A kind of cable connector for outdoor switch blade switch the most according to claim 4, it is characterised in that: described female joint (2) the second latch segment (16) being locked in female joint (2) by upstream cable (4) it is provided with, on described second latch segment (16) Offering the second through hole (17) making upstream cable (4) pass, described second latch segment (16) is threadedly attached in female joint (2), on, the second waterproof jacket (18), described second waterproof jacket (18) between described upstream cable (4) and the second through hole (17), it are provided with It is bonded on the sidewall of the second through hole (17).

6., according to a kind of cable connector for outdoor switch blade switch described in claim 1 to 5 any one, its feature exists In: described insulation board (6) and male joint (1) they are integral type structure；Described inserted block (7) and female joint (2) are integral type structure.