Stably-connected primary and secondary fusion pole-mounted circuit breaker

Abstract

The utility model relates to a stably connected primary and secondary fusion pole-mounted circuit breaker, which comprises a base, a circuit breaker body arranged on the base and a fixed plate fixedly arranged below the base, a circle of connecting bulge is arranged on the bottom surface of the base, and an assembly groove matched with the connecting bulge is arranged on the fixed plate. The outer side face of the connecting protrusion is in contact fit with the assembling groove, the contact face of the connecting protrusion and the assembling groove is an inclined face, and the fixing plate and the base are fixedly connected through bolts arranged at the edge of the base. According to the utility model, the connecting bulge and the assembling groove which are matched in shape are arranged between the base and the fixing plate, and the connecting surface of the two is the inclined surface, so that the connecting bulge and the assembling groove can be tightly matched under the self-gravity action of the base and the circuit breaker body, thereby being beneficial to improving the connecting stability of the base and the circuit breaker body; and during mounting, the inclined slope can also play a certain transition role, so that mounting holes for mounting bolts between the two are aligned at one time, and the connection between the two is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of pole circuit breaker, especially relates to a primary and secondary fusion pole circuit breaker with stable connection. BACKGROUND

[0002] The pole circuit breaker is a kind of high-voltage electrical equipment installed on electric pole or similar support structure, mainly used for control and protection in outdoor distribution system, can cut off, carry and break current under normal and abnormal conditions.It can not only close, carry normal load current, but also break fault current (such as short-circuit current) within specified time, and is widely used in distribution network of 10kV and below.

[0003] The existing pole circuit breaker is usually installed on electric pole by bolt and nut cooperation, and long-time wind and rain can cause bolt loosening and rusting, so that the connection stability of circuit breaker is poor. UTILITY MODEL CONTENTS

[0004] The utility model provides a primary and secondary fusion pole circuit breaker with stable connection to enable the base of circuit breaker to be stably connected with fixed plate.

[0005] The utility model adopts the technical scheme that:

[0006] A primary and secondary fusion pole circuit breaker with stable connection includes base, circuit breaker body arranged on the base and fixed plate fixedly installed below the base, a circle of connecting protrusions is arranged on the bottom surface of the base, assembly slot matched with the connecting protrusions is arranged on the fixed plate, the outer side surface of the connecting protrusions is in contact with the assembly slot, the contact surfaces of the two are inclined surfaces, and the fixed plate is fixedly connected with the base through bolt arranged at the edge position of the base.

[0007] Further, mounting holes are arranged at the top outer edge positions of the base and the fixed plate, and the bolt is connected with nut to realize fixation after passing through the corresponding mounting holes.

[0008] Further, horizontal and opposite blind holes and through holes are arranged on the inclined surfaces of the fixed plate and the connecting protrusions, locking pin is arranged in the through hole, and the locking pin is matched with the blind hole to realize locking.

[0009] Further, the locking pin includes pin shaft, stop ring fixedly arranged on the outer side wall of the middle part of the pin shaft and spring arranged at the right side of the stop ring, connecting hole with smaller inner diameter than the through hole is arranged at the left side of the through hole, and the outer diameter of the pin shaft corresponds to the inner diameter of the connecting hole.

[0010] Further, pull ring is arranged at one end of the pin shaft.

[0011] Further, a slot is arranged along the vertical position of the connecting protrusion, and a plug is arranged in the slot, which is matched with the blocking ring.

[0012] Further, the slot penetrates the base upwards and communicates with the groove arranged on the base.

[0013] Further, an oblique empty slot is arranged on the side wall of the groove, which is matched with the plug.

[0014] The positive effect of the utility model is:

[0015] The utility model discloses the connecting protrusion and assembly slot of shape matching are arranged between base and fixed plate, and the connecting surface of two is inclined plane, under the gravity of base and circuit breaker body, the connecting protrusion and assembly slot can be closely matched, are favorable to improve the connecting stability of two, and the inclined plane of inclination can also play certain transition effect when installing, makes the mounting hole for installing bolt between two one-time alignment, is favorable to the connection between two. DRAWINGS

[0016] Figure 1 It is the structure schematic drawing of the utility model;

[0017] Figure 2 It is the lock pin structure schematic drawing of the utility model. CONCRETE IMPLEMENTING METHOD

[0018] As shown in the accompanying Figure 1 , 2 The utility model discloses a one two fusion column on circuit breaker of connecting stability, including circuit breaker body 1, base 2 and fixed plate 3, circuit breaker body 1 is fixedly arranged on base 2, and base 2 is connected with fixed plate 3 through bolt 6. A connecting protrusion 5 is arranged on the bottom surface of base 2, and an assembly slot 4 matched with the connecting protrusion 5 is arranged at the middle position of fixed plate 3, and the contact surface of connecting protrusion 5 and assembly slot 4 is inclined plane, specifically, assembly slot 4 gradually decreases from top to bottom. The section of connecting protrusion 5 is right trapezoid, and the inclined plane thereof contacts with the side wall of assembly slot 4, and accurate cooperation of base 2 and fixed plate 3 can be realized by using gravity, and certain limiting effect can be played, to prevent base 2 and circuit breaker body 1 from rotating in horizontal position, and finally bolt 6 is used to stably connect two.

[0019] Corresponding mounting holes are arranged at the edge position of base 2 and fixed plate 3, bolt 6 is fixed through the corresponding mounting hole and is fixed through bolt, and base 2 and fixed plate 3 are connected together.

[0020] As further improvement of the utility model, blind hole 7 is arranged on the inclined surface of assembly groove 4, through hole 10 is arranged on the corresponding inclined surface of connecting protrusion 5, blind hole 7 and through hole 10 are horizontally arranged, and the positions of the two correspond to each other, locking pin is arranged in through hole 10, after assembly groove 4 is installed in place with connecting protrusion 5, locking pin is inserted into blind hole 7 to lock, the connection stability of the two can be further improved, even if bolt 6 loosens, locking pin can still keep good locking effect, and the connection stability between base 2 and fixed plate 3 is kept.

[0021] Specifically, the locking pin comprises a pin shaft 9, a retaining ring 11 fixedly arranged on the outer side wall of the middle part of the locking pin 9, and a spring 12 arranged on the right side of the retaining ring 11. Considering the actual processing requirements, a cover plate 13 is arranged on the inner side wall of the connecting protrusion 5. The spring 12 is limited between the retaining ring 11 and the cover plate 13 by the cover plate. The locking pin 9 is inserted into the blind hole 7 to realize cooperation by the elastic force of the spring 12. At the same time, in order to ensure that the pin shaft 9 can be smoothly ejected, a connecting hole 8 is arranged at the left side position of the through hole 10. The inner diameter of the connecting hole 8 is smaller than the inner diameter of the through hole 10 and is matched with the outer diameter of the pin shaft 9. The variable diameter position of the through hole 9 and the connecting hole 8 can be used as a limiting structure of the retaining ring 11 to prevent the retaining ring 11 from moving to the left and being ejected. When the retaining ring 11 moves to the left to the variable diameter position, the retaining ring 11 reaches the limit position. At this time, the pin shaft 9 extends out of the connecting hole 8 and realizes cooperation with the blind hole 7.

[0022] Preferably, a pull ring 14 is arranged at the right end of the pin shaft 9. The pin shaft 9 can be manually pulled to be completely retracted into the connecting hole 8, so as to facilitate installation. After the positions of the base 2 and the fixed plate 3 are placed, the pin shaft 9 is inserted into the blind hole 7.

[0023] As further improvement of the utility model, an insertion slot 15 is arranged along the vertical position of the connecting protrusion 5. An insertion plate 16 is arranged in the insertion slot 15. A U-shaped accommodation slot for the pin shaft 9 is arranged at the bottom end of the insertion plate 16. When the pin shaft 9 is retracted to the limit position, the retaining ring 11 is located at the right side position of the insertion slot 15. At this time, the insertion plate 16 is inserted into the insertion slot 15, the pin shaft 9 is located in the accommodation slot, and the retaining ring 11 cooperates with the insertion plate 16 to prevent the pin shaft 9 from being ejected. After the base 2 and the fixed plate 3 are installed in place, the insertion plate 16 is pulled out, and the pin shaft 9 is ejected to realize cooperation with the blind hole 7 under the action of the spring 12. In the initial state, the insertion plate 16 is inserted into the insertion slot 15 to shield the retaining ring 11. In the installation process, it is not necessary to consider whether the pin shaft 9 will interfere with other components. The installation process is simpler, and single-person installation can be realized.

[0024] Preferably, the insertion slot 15 passes through the base 2 upward and communicates with the groove 17 arranged on the base 2.

[0025] As another embodiment of the utility model, the oblique empty slot 18 is arranged on the side wall of the groove 17, the empty slot 18 is matched with the plug-in board 16, when the plug-in board 16 is pulled out, can be obliquely inserted in the empty slot 18, prevents the plug-in board 16 from losing.

[0026] In the installation process, the pin shaft 9 is completely retracted into the connecting hole 8, the connecting convex 5 can be directly matched with the assembly groove 4, and the connection of the two can be realized by one person. After being installed in place, the base 2 and the fixed plate 3 are connected by using the bolt 6, finally the plug-in board 16 is pulled out, the pin shaft 9 is matched with the blind hole 7, and the stable connection of the base 2 and the fixed plate 3 is realized.

[0027] The above embodiments are only used to illustrate the technical scheme of the utility model, rather than limit it; although the utility model is explained in detail by referring to the foregoing embodiments, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model embodiments.

Claims

1. A stable primary and secondary integrated pole-mounted circuit breaker, characterized in that... It includes a base (2), a circuit breaker body (1) set on the base (2), and a fixing plate (3) fixedly installed below the base (2). A ring of connecting protrusions (5) is provided on the bottom surface of the base (2). The fixing plate (3) is provided with an assembly groove (4) that cooperates with the connecting protrusions (5). The outer side of the connecting protrusions (5) contacts and cooperates with the assembly groove (4). The contact surface between the two is an inclined surface. The fixing plate (3) and the base (2) are fixedly connected by bolts (6) set at the edge of the base (2).

2. The stable primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that... Mounting holes are provided at the top outer edges of the base (2) and the fixing plate (3). The bolt (6) passes through the corresponding mounting hole and is then connected to the nut to achieve fixation.

3. The stable primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that... On the inclined surface of the fixing plate (3) and the connecting protrusion (5) that are in contact, there are horizontal blind holes (7) and through holes (10) that are opposite to each other. A locking pin is provided in the through hole (10), and the locking pin cooperates with the blind hole (7) to achieve locking.

4. A stable primary and secondary integrated pole-mounted circuit breaker according to claim 3, characterized in that... The locking pin includes a pin (9), a retaining ring (11) fixedly disposed on the outer side wall of the middle part of the pin (9), and a spring (12) disposed on the right side of the retaining ring (11). A connecting hole (8) with an inner diameter smaller than that of the through hole (10) is provided on the left side of the through hole (10). The outer diameter of the pin (9) corresponds to the inner diameter of the connecting hole (8).

5. A stable primary and secondary integrated pole-mounted circuit breaker according to claim 4, characterized in that... A pull ring (14) is provided at one end of the pin (9).

6. A stable primary and secondary integrated pole-mounted circuit breaker according to claim 4 or 5, characterized in that... A slot (15) is provided along the vertical position of the connecting protrusion (5), and an insert plate (16) is provided in the slot (15), which cooperates with the retaining ring (11).

7. A stable primary and secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that... The slot (15) extends upward through the base (2) and communicates with the groove (17) provided on the base (2).

8. A stable primary and secondary integrated pole-mounted circuit breaker according to claim 7, characterized in that... An oblique empty groove (18) is provided on the side wall of the groove (17), and the empty groove (18) is adapted to the insert plate (16).

Images