Primary and secondary deep fusion complete pole-mounted circuit breaker

Abstract

The utility model discloses a primary and secondary deep fusion complete pole-mounted circuit breaker, which comprises a pole-mounted circuit breaker shell, the upper surface of the pole-mounted circuit breaker shell is respectively provided with three primary circuit breakers, the power input end and the power output end of each primary circuit breaker are respectively provided with a binding post, the middle part of each primary circuit breaker is connected with a secondary mutual inductor in parallel, and the middle part of each secondary mutual inductor is connected with a secondary transformer. The device further comprises a wiring protection mechanism. The wiring protection mechanism comprises a fixed shell, a movable shell, a limiting sleeve, a half-sleeve line pipe and a sealing gasket, the fixed shell is arranged on the surface of the primary circuit breaker, the primary and secondary deep fusion complete column-mounted circuit breaker provides protection for the wiring position of the circuit breaker by adopting a detachable protection shell, and compared with protection by directly using a rubber sleeve, the wiring protection mechanism is more convenient to use, and the cost is reduced. While the protection effect is improved, the difficulty of wrapping the wiring position by the protection component is reduced, the installation speed of the pole-mounted circuit breaker is accelerated, and the high-altitude operation time is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pole-mounted circuit breaker, concretely to a primary and secondary depth fusion complete pole-mounted circuit breaker. BACKGROUND

[0002] The pole-mounted circuit breaker is a kind of high-voltage electrical equipment installed on electric pole, mainly used for controlling and protecting power distribution network, which can automatically cut off circuit when fault occurs, prevent the occurrence of power accident, protect the safety of equipment and personnel, and the primary and secondary depth fusion complete pole-mounted circuit breaker is a kind of new electrical protection equipment, which combines pole-mounted circuit breaker and primary and secondary electrical quantity fusion technology, realizes more accurate protection;In prior art;The authorization publication number CN 118841285 B discloses a kind of pole-mounted circuit breaker, including circuit breaker main body and several locking assemblies, the bottom of circuit breaker main body is fixedly installed with fixed box, and the bottom of fixed box is supported on electric power cross arm;Locking assembly includes adjusting frame and support block, adjusting frame is slidably connected with fixed box, adjusting frame is rotatably connected with locking rod, second elastic member and third elastic member are sleeved on locking rod;Locking rod passes through support block and adjusting block, adjusting column is slidably connected on locking rod, adjusting column is rotatably connected with adjusting block, reversing slot is formed on adjusting column, spring pin is inserted into reversing slot for adjusting column limiting, two lock blocks are installed on locking rod, the installation part of circuit breaker is arranged in lower end, although the installation of circuit breaker is facilitated, but when wiring circuit breaker, because pole-mounted circuit breaker is mostly used outdoors, in order to provide protection for wiring position, rubber sleeve is also needed to protect wiring position, when rubber sleeve is set, the installation of rubber sleeve is more troublesome due to the influence of friction force on the surface of rubber sleeve, and the operation difficulty is greater. UTILITARIAN CONTENT

[0003] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a primary and secondary depth fusion complete pole-mounted circuit breaker, which provides protection for the wiring position of the circuit breaker by using a detachable protective shell. Compared with directly using a rubber sleeve for protection, the protective effect is improved, the difficulty of wrapping the wiring position with the protective component is reduced, the installation speed of the pole-mounted circuit breaker is increased, and the problems in the background art can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a primary and secondary depth fusion complete pole-mounted circuit breaker, comprising a pole-mounted circuit breaker shell, the upper surface of the pole-mounted circuit breaker shell is provided with three primary circuit breakers respectively, the power input end and the power output end of each primary circuit breaker are provided with a terminal post, and the middle part of each primary circuit breaker is connected in parallel with a secondary mutual inductor, further comprising a wiring protection mechanism.

[0005] The wiring protection mechanism comprises a fixed shell, a moving shell, a limiting sleeve, a half sleeve and a sealing gasket, the fixed shell is arranged on the surface of the primary circuit breaker, the fixed shell is in one-to-one correspondence with the wiring post, the wiring post is arranged in the fixed shell, the upper end of the fixed shell is slidably connected with the moving shell, the top wall of the moving shell is provided with the limiting sleeve, the limiting sleeve is arranged in the fixed shell, the opening of the outer arc surface of the right end of the fixed shell and the moving shell is provided with the half sleeve, the inner arc surface of the right end of the half sleeve is provided with the sealing gasket, the detachable protection shell is arranged on the wiring position of the circuit breaker, compared with the rubber sleeve, the protection effect is improved, the difficulty of wrapping the wiring position by the protection component is reduced, the installation speed of the pole-mounted circuit breaker is improved, and the high-altitude operation time is reduced.

[0006] Further, the wiring protection mechanism further comprises a limiting sleeve, the limiting sleeve is movably sleeved between the outer arc surfaces of the two half sleeves corresponding to the vertical position, and the upper and lower inner walls of the limiting sleeve are inclined surfaces.

[0007] Further, the wiring protection mechanism further comprises a connecting strip and a sealing strip, the connecting strip is arranged on the opposite inner side surfaces of the fixed shell and the moving shell corresponding to the vertical position, the opposite inner side surfaces of the two connecting strips corresponding to the vertical position are provided with the sealing strip, and the fixed shell and the moving shell are sealed.

[0008] Further, the wiring protection mechanism further comprises a telescopic rod and a limiting spring, the telescopic rod is arranged on the bottom wall of the fixed shell, the upper end of the telescopic rod is fixedly connected with the top wall of the moving shell corresponding to the vertical position, the limiting spring is movably sleeved on the outer arc surface of the telescopic rod, the lower end of the limiting spring is fixedly connected with the bottom wall of the fixed shell, and the upper end of the limiting spring is fixedly connected with the top wall of the moving shell.

[0009] Further, the telescopic rod is a hexagonal rod, and the relative rotation between the fixed shell and the moving shell is limited.

[0010] Further, the connecting strip is provided with a baffle, the baffle is arranged on the outer side surface of the connecting strip, the contact position of the connecting strip is hidden, and the waterproof effect is improved.

[0011] Further, the connecting strip is provided with a baffle, the baffle is arranged on the outer side surface of the connecting strip, the contact position of the connecting strip is hidden, and the waterproof effect is improved.

[0012] Compared with the prior art, the utility model has the advantages that the primary and secondary depth fusion complete pole-mounted circuit breaker has the following advantages:

[0013] By adopting the detachable protective shell to provide protection for the wiring position of the circuit breaker, compared with directly using the rubber sleeve for protection, the protection effect is improved, the difficulty of wrapping the wiring position by the protection component is reduced, the installation speed of the pole-mounted circuit breaker is accelerated, and the high-altitude operation time is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model wiring protection mechanism front view section;

[0016] Figure 3 It is a structural schematic diagram of the utility model wiring protection mechanism explosion;

[0017] Figure 4 It is a structural schematic diagram of the utility model A place amplification.

[0018] In the figure: 1 pole-mounted circuit breaker shell, 2 primary circuit breaker, 3 wiring post, 4 wiring protection mechanism, 401 fixed shell, 402 movable shell, 403 limit sleeve, 404 half sleeve tube, 405 sealing pad, 406 limit sleeve ring, 407 connecting strip, 408 sealing strip, 409 telescopic rod, 410 limit spring, 5 baffle, 6 threading hole, 7 secondary mutual inductor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1-4The embodiment provides a technical scheme: a primary and secondary deep fusion complete set of pole circuit breaker, which comprises a pole circuit breaker shell 1, a fixed base is arranged on the lower surface of the pole circuit breaker shell 1, the overall device is conveniently installed and fixed on the upper end of a telegraph pole, secondary equipment in the pole circuit breaker shell 1 adopts commonly used secondary equipment in the prior art, and the secondary equipment comprises control circuit, signal circuit and protection circuit and the like, wherein the control circuit is responsible for controlling the action of the circuit breaker, and remote control or automatic control is realized; the signal circuit is used for transmitting state information of the circuit breaker, such as closing and opening; and the protection circuit is responsible for monitoring the running state of the power system, and timely cuts off the circuit when a fault occurs, so as to protect the safety of the power system, three primary circuit breakers 2 are arranged on the upper surface of the pole circuit breaker shell 1, the primary circuit breaker 2 adopts a commonly used circuit breaker in the prior art, and the primary circuit breaker 2 comprises a circuit breaker body, an operating mechanism, an arc extinguishing device and the like, the circuit breaker body is a core component of the circuit breaker, is responsible for cutting off the circuit when short circuit or overload occurs, and protects the safe operation of the power system; the operating mechanism is responsible for driving the action of the circuit breaker body, and realizes the on-off of the circuit; the arc extinguishing device is used for quickly extinguishing electric arc when the circuit breaker acts, prevents equipment damage and accident expansion, the power input end and the power output end of the primary circuit breaker 2 are each provided with a terminal post 3, so that the connection of an external line with the circuit breaker is facilitated, the secondary mutual inductor 7 is connected in parallel with the middle part of the primary circuit breaker 2, is used for converting high voltage or large current into low voltage or small current, so that the secondary equipment can be measured and protected, and the pole circuit breaker further comprises a wiring protection mechanism 4.

[0021] The wiring protection mechanism 4 comprises a fixed shell 401, a moving shell 402, a limiting sleeve 403, a half sleeve wire pipe 404 and a sealing gasket 405. The fixed shell 401 is arranged on the surface of the primary circuit breaker 2 respectively. The fixed shell 401 corresponds to the wiring post 3 one by one. The wiring post 3 is arranged in the fixed shell 401 respectively. The moving shell 402 is slidably connected to the upper end of the fixed shell 401. The top wall of the moving shell 402 is provided with the limiting sleeve 403. The limiting sleeve 403 is arranged in cooperation with the wiring post 3. The opening of the outer arc surface of the right end of the fixed shell 401 and the moving shell 402 is provided with the half sleeve wire pipe 404. The inner arc surface of the right end of the half sleeve wire pipe 404 is provided with the sealing gasket 405. When the wiring is installed, the moving shell 402 is pulled upwards to expose the wiring post 3. Then the wire handle of the connecting line is sleeved on the outer arc surface of the wiring post 3. The moving shell 402 is loosened. Under the action of the limiting part, the moving shell 402 is reset. The limiting sleeve 403 is sleeved on the upper end of the wiring post 3 to limit the wire handle from being separated from the wiring post 3. At the same time, the wire is arranged in the sleeve wire pipe formed by the two half sleeve wire pipes 404 corresponding to the vertical position. The deformation of the sealing gasket 405 is used to fill and seal between the wire and the inner arc surface of the half sleeve wire pipe 404 to protect the wiring position. The wiring protection mechanism 4 further comprises a limiting sleeve ring 406. The limiting sleeve ring 406 is movably sleeved between the outer arc surfaces of the two half sleeve wire pipes 404 corresponding to the vertical position. The upper and lower inner walls of the limiting sleeve ring 406 are inclined surfaces. The inclined surfaces of the upper and lower inner walls of the limiting sleeve ring 406 are used to apply pressure to the half sleeve wire pipe 404 to make the two half sleeve wire pipes 404 closely adhere to each other. The wiring protection mechanism 4 further comprises a connecting strip 407 and a sealing strip 408. The connecting strip 407 is arranged on the opposite inner side of the fixed shell 401 and the moving shell 402 corresponding to the vertical position. The opposite inner side of the two connecting strips 407 corresponding to the vertical position is provided with the sealing strip 408. The lower sealing strip 408 is arranged on the upper surface of the lower connecting strip 407. The upper sealing strip 408 is arranged on the lower surface of the convex strip of the upper connecting strip 407. Under the limiting of the connecting strip 407, the sealing strip 408 is deformed to seal between the fixed shell 401 and the moving shell 402. The wiring protection mechanism 4 further comprises an extension rod 409 and a limiting spring 410. The extension rod 409 is arranged on the bottom wall of the fixed shell 401. The upper end of the extension rod of the extension rod 409 is fixedly connected with the top wall of the moving shell 402 corresponding to the vertical position. The limiting spring 410 is movably sleeved on the outer arc surface of the extension rod 409. The lower end of the limiting spring 410 is fixedly connected with the bottom wall of the fixed shell 401. The upper end of the limiting spring 410 is fixedly connected with the top wall of the moving shell 402. When the moving shell 402 moves upwards, the extension rod 409 is stretched to overcome the elastic force of the limiting spring 410. After the moving shell 402 is loosened, the extension rod 409 is retracted under the elastic force of the limiting spring 410 to drive the moving shell 402 to reset. The extension rod 409 provides power for the reset of the moving shell 402. The extension rod of the extension rod 409 is a hexagonal rod to limit the relative rotation between the fixed end and the extension end of the extension rod 409.Further limit the relative rotation between the fixed shell 401 and the mobile shell 402, also includes the baffle 5, the baffle 5 is respectively arranged on the outer side of the upper connecting strip 407, the contact position of the connecting strip 407 is hidden, improves the waterproof effect, further includes the threading hole 6, the threading hole 6 is respectively arranged on the opposite inner side of the two sealing pads 405 corresponding to the vertical position, the threading hole 6 is all half-cone-shaped hole, provides the space for the connection wire, so that the electric wire of different thickness can be closely attached with the sealing pad 405.

[0022] The working principle of the primary and secondary depth fusion complete set pole-mounted circuit breaker provided by the utility model is as follows: in use, the whole device is installed and fixed on the telegraph pole through the fixed base at the lower end of the pole-mounted circuit breaker shell 1, in the installation wiring, first, the limiting sleeve ring 406 is removed, then the mobile shell 402 is pulled upward, the elastic force of the limiting spring 410 is overcome, the telescopic rod 409 is telescoped, the mobile shell 402 drives the limiting sleeve pipe 403 and the upper half sleeve wire pipe 404 to move upward, the wiring post 3 is exposed, the wire handle of the connection line end is passed through the limiting sleeve ring 406 and then is sleeved on the outer arc surface of the wiring post 3, the mobile shell 402 is loosened, under the action of the elastic force of the limiting spring 410, the telescopic rod 409 is contracted, drives the mobile shell 402 to reset, the limiting sleeve pipe 403 is sleeved on the upper end of the wiring post 3, the wire handle of the electric wire is limited to separate from the wiring post 3, and the wire is located in the sleeve wire pipe formed by the two half sleeve wire pipes 404 corresponding to the vertical position, the deformation of the sealing pad 405 is used to fill and seal between the electric wire and the inner arc surface of the half sleeve wire pipe 404, the sealing strip 408 is used to seal between the fixed shell 401 and the mobile shell 402, finally, the limiting sleeve ring 406 is sleeved on the outer arc surface of the sleeve wire pipe, the slope of the upper and lower inner walls of the limiting sleeve ring 406 is used to apply pressure to the half sleeve wire pipe 404, so that the two half sleeve wire pipes 404 are closely attached, the wiring position is protected, in use, when short circuit or overload occurs, the primary circuit breaker 2 is quickly disconnected, the secondary mutual inductor 7 is used to convert the large current of the circuit into small current, the secondary measuring equipment in the pole-mounted circuit breaker shell 1 is used to monitor the running state of the circuit, and the circuit is cut off in time when a fault occurs.

[0023] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A primary and secondary deeply integrated pole-mounted circuit breaker, comprising a pole-mounted circuit breaker housing (1), wherein three primary circuit breakers (2) are respectively provided on the upper surface of the pole-mounted circuit breaker housing (1), and each primary circuit breaker (2) has a terminal block (3) at both its input and output ends, and a secondary current transformer (7) is connected in parallel in the middle of each primary circuit breaker (2), characterized in that: It also includes a wiring protection mechanism (4); The wiring protection mechanism (4) comprises a fixed shell (401), a movable shell (402), a limiting sleeve (403), a half sleeve wire tube (404) and a sealing gasket (405), the fixed shell (401) is arranged on the surface of the primary circuit breaker (2) respectively, the fixed shell (401) corresponds to the wiring post (3) one by one, the wiring post (3) is located in the interior of the fixed shell (401) respectively, the upper end of the fixed shell (401) is slidably connected with the movable shell (402) which is elastically limited, the top wall of the movable shell (402) is provided with the limiting sleeve (403), the limiting sleeve (403) is installed in cooperation with the wiring post (3), the opening of the outer arc surface right end of the fixed shell (401) and the movable shell (402) is provided with the half sleeve wire tube (404), and the inner arc surface right end of the half sleeve wire tube (404) is provided with the sealing gasket (405).

2. The one-family deep fusion set of pole circuit breaker according to claim 1, characterized in that: The wiring protection mechanism (4) further comprises a limiting sleeve ring (406), the limiting sleeve ring (406) is movably sleeved between the outer arc surfaces of the two half sleeve wire tubes (404) corresponding to the vertical position, and the upper and lower inner walls of the limiting sleeve ring (406) are inclined surfaces.

3. The on-load circuit breaker of claim 1, wherein: the first and second circuit breakers are configured to be operated in a coordinated manner. The wiring protection mechanism (4) further comprises a connecting strip (407) and a sealing strip (408), the connecting strip (407) is arranged on the opposite inner side surface of the fixed shell (401) and the movable shell (402) corresponding to the vertical position respectively, and the opposite inner side surfaces of the two connecting strips (407) corresponding to the vertical position are provided with the sealing strip (408).

4. The on-load circuit breaker of claim 1, wherein: The wiring protection mechanism (4) further comprises a telescopic rod (409) and a limiting spring (410), the telescopic rod (409) is arranged on the bottom wall of the fixed shell (401), the upper end of the telescopic rod (409) is fixedly connected with the top wall of the movable shell (402) corresponding to the vertical position, and the limiting spring (410) is movably sleeved on the outer arc surface of the telescopic rod (409), the lower end of the limiting spring (410) is fixedly connected with the bottom wall of the fixed shell (401), and the upper end of the limiting spring (410) is fixedly connected with the top wall of the movable shell (402).

5. The on-premise circuit breaker of claim 4, wherein: The telescopic rod of the telescopic rod (409) is a hexagonal rod.

6. The on-premise circuit breaker of claim 3, wherein: It also includes a baffle (5), the baffle (5) is arranged on the outer side surface of the connecting strip (407) on the upper side.

7. The on-load circuit breaker of claim 1, wherein: It also includes a threading hole (6), the threading hole (6) is arranged on the opposite inner side surface of the two sealing gaskets (405) corresponding to the vertical position, and the threading hole (6) is a half conical hole.

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