Primary and secondary fusion pole-mounted circuit breaker

Abstract

The utility model relates to a primary and secondary fusion pole-mounted circuit breaker, which comprises a circuit breaker body and a mounting rack, the circuit breaker body is fixedly arranged on the mounting rack, and a U-shaped mounting part is formed at one end, far away from the circuit breaker body, of the mounting rack. The mounting part is provided with four horizontal flat parts, two vertical parts and self-locking assemblies which are located on the mounting part respectively and are in an annular array, each self-locking assembly comprises a mounting plate, a rotating shaft and a self-locking wheel, one end of the mounting plate of the self-locking assembly located on the opening of the mounting part is hinged to the end of one vertical part of the mounting part, and the other end of the mounting plate is hinged to the other end of the other vertical part of the mounting part; one end of each self-locking assembly is fixedly connected to the end of one vertical part of the mounting part, the other end of each self-locking assembly is fixedly connected to the end of the other vertical part of the mounting part through a bolt pair, the mounting plates of the other three self-locking assemblies are fixedly connected to the transverse flat part and the two vertical parts of the mounting part respectively, the rotating shafts are rotationally arranged on the mounting plates, and the self-locking wheels are eccentrically and fixedly connected to the rotating shafts. When the primary and secondary fusion pole-mounted circuit breaker is installed, downward one-way locking can be realized, the installation difficulty is reduced, and the construction risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a primary-secondary integrated pole-mounted circuit breaker. Background Art

[0002] The primary-secondary integrated pole-mounted circuit breaker is a complete set of circuit breaker equipment installed on a telegraph pole through a mounting frame. Generally, the installation of the pole-mounted circuit breaker needs to be completed in cooperation with an aerial work vehicle. However, when installing the pole-mounted circuit breaker on a telegraph pole in some remote areas, since the aerial work vehicle cannot reach, the installation of the pole-mounted circuit breaker needs to be carried out by manual lifting. The construction workers need to lift the circuit breaker to the designated height by climbing. When climbing the pole and lifting the circuit breaker, the operation is difficult because the gravity of the circuit breaker needs to be overcome all the time, and there is a great construction risk.

[0003] In view of the above problems, the utility model is improved. Summary of the Utility Model

[0004] The utility model provides a primary-secondary integrated pole-mounted circuit breaker, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows:

[0006] A primary-secondary integrated pole-mounted circuit breaker includes a circuit breaker body and a mounting frame. The circuit breaker body is fixedly arranged on the mounting frame. One end of the mounting frame far away from the circuit breaker body forms a U-shaped mounting part. Four self-locking components are arranged on the mounting part and are annularly arrayed on the horizontal part, two vertical parts and the opening of the mounting part respectively. The self-locking component includes a mounting plate, a rotating shaft and a self-locking wheel. One end of the mounting plate of the self-locking component located on the opening of the mounting part is hinged to the end of one vertical part of the mounting part, and the other end is fixedly connected to the end of the other vertical part of the mounting part through a bolt pair. The mounting plates of the remaining three self-locking components are respectively fixedly connected to the horizontal part and two vertical parts of the mounting part. The rotating shaft is rotatably arranged on the mounting plate, and the self-locking wheel is eccentrically fixedly connected to the rotating shaft.

[0007] Preferably, a torsion spring with two ends respectively fixedly connected to the mounting plate and the self-locking wheel is sleeved on the rotating shaft.

[0008] Preferably, an anti-slip cushion layer made of rubber is coated on the outer side surface of the self-locking wheel.

[0009] Preferably, a locking lever is fixedly connected to the self-locking wheel. A first swinging groove for the locking lever to swing along with the self-locking wheel is formed on the mounting plate. The locking lever passes through the first swinging groove and is screwed with a locking nut that can tightly abut against the mounting plate.

[0010] Preferably, the cross-section of the mounting plate is L-shaped, the locking lever is L-shaped, the end of the horizontal part of the locking lever is fixedly connected to the self-locking wheel, the first swing groove is formed on the vertical part of the mounting plate, and a second swing groove for the locking lever to swing with the self-locking wheel is formed on the horizontal part of the mounting plate. The horizontal part of the locking lever passes through the first swing groove, and the vertical part of the locking lever passes through the second swing groove. The locking nut is screwed on the part where the vertical part of the locking lever passes through the second swing groove and can be abutted against the horizontal part of the mounting plate.

[0011] Preferably, the end face of the locking nut facing the horizontal part of the mounting plate is spherical.

[0012] Preferably, a support frame is hinged on the mounting frame. The end of the support frame is fixedly connected with a first half hoop. A second half hoop is hinged on the first half hoop, and the free end of the second half hoop is fastened to the first half hoop through a bolt pair.

[0013] In summary, the beneficial effects of the present invention are as follows: Through the action of the self-locking component, the one-way locking of the downward movement of the mounting frame on the electric pole is realized. When the construction workers climb the pole and lift the mounting frame and the circuit breaker body, the locking of the downward movement of the mounting frame enables the gravity of the mounting frame and the circuit breaker body not to always act on the construction workers, reducing the difficulty for the construction workers to install this integrated primary and secondary pole-mounted circuit breaker and reducing the risk during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a structural schematic diagram of the present invention;

[0016] Figure 2 is an exploded schematic diagram of the mounting frame, the self-locking component and the support frame in the utility model;

[0017] Figure 3 is a structural schematic diagram of the self-locking component in the present invention;

[0018] Figure 4 is a structural schematic diagram of the present invention after being installed on the electric pole;

[0019] Figure 5 is a structural schematic diagram of the cooperation between the self-locking wheel and the electric pole in the longitudinal direction of the present invention.

[0020] In the figure: 1. Circuit breaker body; 2. Mounting frame; 21. Mounting part; 3. Self-locking assembly; 31. Mounting plate; 311. First swing slot; 312. Second swing slot; 32. Rotating shaft; 33. Self-locking wheel; 34. Torsion spring; 35. Anti-slip cushion layer; 36. Locking lever; 37. Locking nut; 4. Support frame; 41. First half hoop; 42. Second half hoop. Specific embodiments

[0021] Next, in combination with the accompanying drawings in the embodiments of the present invention Figures 1 - 5 , the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As shown in the figure, a primary-secondary integrated pole-mounted circuit breaker includes a circuit breaker body 1 and a mounting frame 2. The circuit breaker body 1 is fixedly arranged on the mounting frame 2 through a bolt pair. One end of the mounting frame 2 away from the circuit breaker body 1 forms a U-shaped mounting part 21. Four self-locking assemblies 3 are arranged on the mounting part 21 and are annularly arrayed on the horizontal part, two vertical parts and the opening of the mounting part 21 respectively. The self-locking assembly 3 includes a mounting plate 31, a rotating shaft 32 and a self-locking wheel 33. One end of the mounting plate 31 of the self-locking assembly 3 located at the opening of the mounting part 21 is hinged to the end of one vertical part of the mounting part 21, and the other end is fixedly connected to the end of the other vertical part of the mounting part 21 through a bolt pair. The mounting plates 31 of the remaining three self-locking assemblies 3 are respectively fixedly connected to the horizontal part and two vertical parts of the mounting part 21. The rotating shaft 32 is rotatably arranged on the mounting plate 31, and the self-locking wheel 33 is eccentrically fixedly connected to the rotating shaft 32. Specifically, the axis of the rotating shaft 32 is located above the axis of the self-locking wheel 33, and the included angle between the line connecting the axis of the rotating shaft 32 and the axis of the self-locking wheel 33 and the horizontal plane is 15°.

[0023] In the above structure, when construction workers install this primary-secondary integrated pole-mounted circuit breaker on a utility pole, first, the circuit breaker body 1 is fixedly installed on the mounting frame 2 through bolts. Then, the bolt pair on the free end of the mounting plate 31 of the self-locking assembly 3 located at the opening of the mounting part 21 is unscrewed, causing the self-locking assembly 3 located at the opening of the mounting part 21 to swing and open the opening of the mounting part 21. The mounting frame 2 is moved so that the utility pole passes through the opening of the mounting part 21 and enters between the self-locking wheels 33 of several self-locking assemblies 3. Then, the self-locking assembly 3 located at the opening of the mounting part 21 is swung towards the utility pole, and the mounting plate 31 of the self-locking assembly 3 is fixedly connected to the mounting part 21 through the bolt pair, so that the self-locking wheels 33 of the four self-locking assemblies 3 are annularly arranged along the axis of the utility pole, and the self-locking wheels 33 of several self-locking assemblies 3 are in contact with the utility pole, generating a certain frictional force between the self-locking wheels 33 and the utility pole. After the mounting frame 2 is lifted to a certain height and then released, under the action of the gravity of the circuit breaker body 1 and the mounting frame 2, the self-locking wheels 33 tend to move downward relative to the utility pole. The frictional force between the self-locking wheels 33 and the utility pole exerts an upward force on the self-locking wheels 33 at the contact point between the self-locking wheels 33 and the utility pole, driving the self-locking wheels 33 to eccentrically rotate counterclockwise as shown in Figure 5 shown. The geometric center offset caused by the eccentric rotation of the self-locking wheels 33 increases the contact pressure between the self-locking wheels 33 and the utility pole, thereby increasing the frictional force between the self-locking wheels 33 and the utility pole, realizing the longitudinal locking between the self-locking wheels 33 and the utility pole, and keeping the mounting frame 2 and the circuit breaker body 1 at the lifted height to achieve gravity self-locking. When the mounting frame 2 is continuously lifted, the upward movement of the self-locking wheels 33 along with the mounting frame 2 exerts a downward force on the self-locking wheels 33 at the contact point between the self-locking wheels 33 and the utility pole, driving the self-locking wheels 33 to eccentrically rotate clockwise as shown in Figure 5 shown, reducing the frictional force between the self-locking wheels 33 and the utility pole, enabling the mounting frame 2 to smoothly move upward on the utility pole. Through the action of the above self-locking assembly 3, the one-way locking of the mounting frame 2 moving downward on the utility pole is realized. When construction workers climb the pole and lift the mounting frame 2 and the circuit breaker body 1, the locking of the mounting frame 2 moving downward enables the gravity of the mounting frame 2 and the circuit breaker body 1 not to always act on the construction workers, reducing the difficulty for construction workers to install this primary-secondary integrated pole-mounted circuit breaker and reducing the risk during construction.

[0024] In addition, on the basis of the above structure, a torsion spring 34 is sleeved on the rotating shaft 32, and both ends of the torsion spring 34 are fixedly connected to the mounting plate 31 and the self-locking wheel 33 respectively. Under the action of the torsion spring 34, the self-locking wheel 33 has a tendency to move along as shown in Figure 5As shown in the figure, the self-locking wheel 33 is able to always keep in contact with the electric pole under the action of the torsion spring 34, so that the self-locking wheel 33 can be eccentrically rotated by the friction between the other electric poles to achieve self-locking or release, thereby ensuring the stability of the mounting frame 2 and the circuit breaker body 1 when they are lifted, and reducing the difficulty for construction workers to lift the circuit breaker body 1 for installation.

[0025] In addition, based on the above structure, the outer surface of the self-locking wheel 33 is coated with an anti-skid pad layer 35 made of rubber. The anti-skid pad layer 35 increases the friction between the self-locking wheel 33 and the utility pole when they collide with each other, thereby ensuring that the self-locking wheel 33 can eccentrically rotate under the action of friction to achieve self-locking or release. At the same time, the friction between the self-locking wheel 33 and the utility pole when they are locked is also increased, thereby ensuring the stability of the mounting frame 2 and the circuit breaker when they are stopped on the utility pole.

[0026] In addition, on the basis of the above structure, a locking lever 36 is fixedly connected to the self-locking wheel 33, and a first swinging groove 311 is provided on the mounting plate 31 for the locking lever to swing with the self-locking wheel 33. The locking lever 36 passes through the first swinging groove 311 and is threadedly connected with a locking nut 37 that can be tightly pressed against the mounting plate 31. After the mounting frame 2 and the circuit breaker body 1 are lifted to the installation height, the self-locking wheel 33 is driven by toggling the locking lever 36. Figure 5 The counterclockwise eccentric rotation as shown in the figure makes the contact pressure between the self-locking wheel 33 and the utility pole at the maximum value, and the friction between the self-locking wheel 33 and the utility pole is at the maximum value, and then the locking nut 37 is tightened to make it close to the mounting plate 31 to limit the swing of the locking lever 36 in the first swing groove 311, and to limit the rotation of the self-locking wheel 33, thereby ensuring the stability of the mounting frame 2 and the circuit breaker body 1 locked on the utility pole by the self-locking wheel 33, realizing the fixed installation of the primary and secondary fusion column mounted circuit breaker on the utility pole, thereby facilitating the installation operation.

[0027] In addition, based on the above structure, the cross-section of the mounting plate 31 is L-shaped, the locking lever 36 is L-shaped, the end of the horizontal portion of the locking lever 36 is fixedly connected to the self-locking wheel 33, the first swinging groove 311 is formed in the vertical portion of the mounting plate 31, and a second swinging groove 312 for the locking lever 36 to swing with the self-locking wheel 33 is formed in the horizontal portion of the mounting plate 31. The horizontal portion of the locking lever 36 passes through the first swinging groove 311, and the vertical portion of the locking lever 36 passes through the second swinging groove 312. The locking nut 37 is screwed onto the portion of the vertical portion of the locking lever 36 passing through the second swinging groove 312 and can abut against the horizontal portion of the mounting plate 31. When the horizontal portion of the locking lever 36 swings in the first swinging groove 311 to make the friction between the self-locking wheel 33 and the utility pole reach the maximum value, the vertical portion of the locking lever 36 swings in the second swinging groove 312. By tightening the locking nut 37 to abut against the horizontal portion of the mounting plate 31, the rotation of the self-locking wheel 33 is limited. Since the limit of the rotation of the self-locking wheel 33 is achieved by the pressure of the locking nut 37 against the horizontal portion of the mounting plate 31 rather than relying on friction, the limiting effect on the rotation of the self-locking wheel 33 is strengthened, and further, the stability of the mounting bracket 2 and the circuit breaker body 1 mounted on the utility pole is strengthened.

[0028] In addition, based on the above structure, the end face of the locking nut 37 facing the horizontal portion of the mounting plate 31 is spherical. When the vertical portion of the locking lever 36 and the horizontal portion of the mounting plate 31 are not perpendicular (this is due to the yaw generated when the locking lever 36 drives the self-locking wheel 33 to rotate counterclockwise as shown in Figure 5 ), the spherical end face of the locking nut 37 can also stably abut against the horizontal portion of the mounting plate 31 to apply a limit to the rotation of the self-locking wheel 33, thereby further strengthening the stability of the mounting bracket 2 and the circuit breaker body 1 mounted on the utility pole.

[0029] In addition, on the basis of the above structure, a support frame 4 is hinged to the mounting frame 2. A first half hoop 41 is fixedly connected to the end of the support frame 4. A second half hoop 42 is hinged to the first half hoop 41. The free end of the second half hoop 42 is fastened to the first half hoop 41 through a bolt pair. When lifting the mounting frame 2 and the circuit breaker body 1, the support frame 4 can be swung to make the first half hoop 41 abut against the telegraph pole to play an auxiliary supporting role for the mounting frame 2, ensuring the stability of the mounting frame 2 and the circuit breaker body 1 during temporary locking in the lifting process, facilitating the construction personnel to lift the mounting frame 2 and the circuit breaker body 1. After the mounting frame 2 and the circuit breaker body 1 are lifted to the installation height and the locking nut 37 is screwed tight, the free end of the second half hoop 42 is fastened to the first half hoop 41 through a bolt pair, and the first half hoop 41 and the second half hoop 42 are cooperatively clamped and fixed on the telegraph pole, so that the support frame can support the mounting frame 2 and the circuit breaker body 1, thereby strengthening the stability of the integration of primary and secondary post circuit breakers mounted on the telegraph pole.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A primary-secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body (1) and a mounting frame (2), wherein the circuit breaker body (1) is fixedly arranged on the mounting frame (2), and is characterized in that: One end of the mounting bracket (2) away from the circuit breaker body (1) is formed with a U-shaped mounting portion (21). Four self-locking components (3) are arranged on the mounting portion (21) in an annular array on the horizontal flat portion, two vertical portions and the opening of the mounting portion (21). The self-locking component (3) includes a mounting plate (31), a rotating shaft (32) and a self-locking wheel (33). One end of the mounting plate (31) of the self-locking component (3) located on the opening of the mounting portion (21) is hinged to the end of one vertical portion of the mounting portion (21), and the other end is fixedly connected to the end of the other vertical portion of the mounting portion (21) through a bolt pair. The mounting plates (31) of the remaining three self-locking components (3) are respectively fixedly connected to the horizontal flat portion and the two vertical portions of the mounting portion (21). The rotating shaft (32) is rotatably arranged on the mounting plate (31), and the self-locking wheel (33) is eccentrically fixedly connected to the rotating shaft (32).

2. The primary-secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: A torsion spring (34) with two ends respectively fixedly connected to the mounting plate (31) and the self-locking wheel (33) is sleeved on the rotating shaft (32).

3. The primary-secondary integrated pole-mounted circuit breaker according to claim 2, wherein: An anti-slip cushion layer (35) made of rubber is coated on the outer side surface of the self-locking wheel (33).

4. The primary-secondary integrated pole-mounted circuit breaker according to claim 3, characterized in that: A locking lever (36) is fixedly connected to the self-locking wheel (33). A first swinging groove (311) for the locking lever to swing with the self-locking wheel (33) is formed on the mounting plate (31). The locking lever (36) passes through the first swinging groove (311) and is screwed with a locking nut (37) that can tightly abut against the mounting plate (31).

5. The primary-secondary integrated pole-mounted circuit breaker according to claim 4, characterized in that: The cross section of the mounting plate (31) is L-shaped. The locking lever (36) is L-shaped. The end of the horizontal flat portion of the locking lever (36) is fixedly connected to the self-locking wheel (33). The first swinging groove (311) is formed on the vertical portion of the mounting plate (31). A second swinging groove (312) for the locking lever (36) to swing with the self-locking wheel (33) is formed on the horizontal flat portion of the mounting plate (31). The horizontal flat portion of the locking lever (36) passes through the first swinging groove (311), and the vertical portion of the locking lever (36) passes through the second swinging groove (312). The locking nut (37) is screwed on the part of the vertical portion of the locking lever (36) passing through the second swinging groove (312) and can tightly abut against the horizontal flat portion of the mounting plate (31).

6. The primary-secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that: The end face of the locking nut (37) facing the horizontal flat portion of the mounting plate (31) is spherical.

7. The primary-secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that: A support frame (4) is hinged on the mounting bracket (2). A first half hoop (41) is fixedly connected to the end of the support frame (4). A second half hoop (42) is hinged on the first half hoop (41), and the free end of the second half hoop (42) is fastened to the first half hoop (41) through a bolt pair.

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