Pole-mounted circuit breaker convenient to install and fix and installation method

Abstract

The invention provides a pole-mounted circuit breaker convenient to install and fix and an installation method, and belongs to the technical field of circuit breakers, and the pole-mounted circuit breaker comprises a jacking mechanism, a telegraph pole, an installation box assembly, a vacuum arc-extinguishing chamber, an installation platform assembly, a measurement feedback component and a first fastening assembly. A plurality of vacuum arc extinguish chambers are mounted at the top of the mounting box assembly; the measurement feedback component and the installation box assembly are located at the top of the installation platform assembly. The measurement feedback component is located on one side of the installation box assembly and connected with the installation box assembly, the relative distance between the installation box assembly and a telegraph pole is determined through the measurement feedback component, the measurement feedback component is moved to a designated position through the installation platform assembly, and then the measurement feedback component and the installation box assembly are separated. And then the first fastening assembly is fixedly connected with the mounting box assembly. Positioning is accurately achieved by adjusting the stroke of the electric push rod assembly, and by arranging the inclined push block assembly and the electric push rod assembly, the problem that a certain inclination angle exists between the wiring position of a circuit breaker and the trend of an electric wire is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a pole-mounted circuit breaker that is easy to install and fix, and an installation method. Background Art

[0002] A pole-mounted circuit breaker is a switchgear used to protect distribution lines. It is installed on power poles or power towers and is mainly used to disconnect and connect distribution lines, as well as to protect lines from overcurrent, short circuit and other faults. When a short circuit, overload or other fault occurs in the power system, the pole-mounted circuit breaker can quickly cut off the current, thereby protecting the transmission lines and electrical equipment, and preventing equipment damage and fire and other safety accidents. During maintenance or overhaul, the pole-mounted circuit breaker can isolate the equipment from the power grid to ensure the safety of the staff.

[0003] Patent document CN114743838B discloses a deep fusion pole-mounted circuit breaker, including a circuit breaker body and a bracket for connecting the circuit breaker body to a pole, the bracket including a side plate fixedly connected to the pole and a top plate fixedly arranged on one side of the side plate, at least one mounting rod is fixedly arranged at the bottom of the circuit breaker body, the top plate is provided with mounting grooves equal to the number of mounting rods, one end of the mounting groove is closed in the horizontal direction, and the other end is provided with an opening for the adjacent mounting rod to move in or out, and the mounting rod can only move horizontally but not vertically when moving into the mounting groove; a locking member for preventing the mounting rod from moving out of the mounting groove is arranged on the top plate, the locking member includes a locking rod vertically slidably penetrated through the bottom wall of the mounting groove and a reset member for driving the locking rod to extend into the mounting groove, and the reset member can produce elastic deformation in the vertical direction. This patent has the effect of facilitating the installation of the circuit breaker body on the bracket.

[0004] Although the above patent document can solve the problem of installing the circuit breaker on the bracket, since the pole-mounted circuit breaker is very heavy and installed at a high altitude, the prior art mostly relies on a special lifting device to lift the pole-mounted circuit breaker. However, in order to ensure the safety of the equipment during transportation, the pole-mounted circuit breaker on the lifting device must maintain a certain distance from the utility pole. There may be certain vibrations or shaking during the lifting process. After reaching the specified height, the position of the pole-mounted circuit breaker may change. In addition, during the installation process, the wiring position of the pole-mounted circuit breaker may have a certain inclination angle with the direction of the wire. The installation of the pole-mounted circuit breaker requires the cooperation of multiple people. That is to say, the overall efficiency of the current pole-mounted circuit breaker installation is low, and there may be safety hazards when multiple people collaborate. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a pole-mounted circuit breaker and an installation method that are easy to install and fix, which effectively solves the problem that the prior art mostly relies on a special lifting device to lift the pole-mounted circuit breaker. However, in order to ensure the safety of the equipment during transportation, the pole-mounted circuit breaker on the lifting device must maintain a certain distance from the utility pole. There may be certain vibrations or shaking during the lifting process. After reaching the specified height, the position of the pole-mounted circuit breaker may change. In addition, during the installation process, the wiring position of the pole-mounted circuit breaker may have a certain inclination angle with the direction of the wire. The installation of the pole-mounted circuit breaker requires the cooperation of multiple people. That is to say, the overall efficiency of the current pole-mounted circuit breaker installation is low, and there may be safety hazards when multiple people collaborate.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pole-mounted circuit breaker that is easy to install and fix, comprising a lifting mechanism, a utility pole, a mounting box assembly, a vacuum interrupter, a mounting platform assembly, a measurement feedback component and a first fastening assembly; a plurality of vacuum interrupters are installed on the top of the mounting box assembly; the mounting platform assembly is located on the top of the lifting mechanism; the measurement feedback component and the mounting box assembly are both located on the top of the mounting platform assembly; the measurement feedback component is located on one side of the mounting box assembly and connected thereto, the relative distance between the mounting box assembly and the utility pole is first determined by the measurement feedback component, and then the measurement feedback component is moved to a specified position by the mounting platform assembly, and then the measurement feedback component and the mounting box assembly are separated, and then the first fastening assembly is fixedly connected to the mounting box assembly.

[0007] As a further improvement of the present invention, the installation box assembly includes an installation box body, an installation box top plate and an installation box bottom plate, the installation box top plate is located at the top of the installation box body and connected thereto, the installation box bottom plate is located at the bottom of the installation box body and connected thereto, reinforcement plates are provided on the front, back and side away from the utility pole of the installation box body, a plurality of threaded holes are provided on the side of the installation box body close to the utility pole, and threaded holes are provided on the installation box bottom plate.

[0008] As a further improvement of the present invention, the mounting platform assembly includes a mounting platform, a first electric push rod assembly, a second electric push rod assembly and a third electric push rod assembly, the mounting platform is fixedly connected to the lifting mechanism, the first electric push rod assembly, the second electric push rod assembly and the third electric push rod assembly are all located on the top of the mounting platform and connected thereto, the mounting platform assembly also includes an oblique push block assembly, and the lifting ends of the extended shafts of the second electric push rod assembly and the lifting ends of the extended shafts of the third electric push rod assembly are both provided with mounting holes for installing the oblique push block assembly.

[0009] As a further improvement of the present invention, the measurement feedback component includes a connecting seat assembly, a movable plate assembly and a return plate assembly, wherein the connecting seat assembly is located on one side of the mounting box assembly and is connected thereto; the movable plate assembly is engaged in the connecting seat assembly and can be moved along the front and rear directions of the mounting platform, the return plate assembly is located on the top of the movable plate assembly and is connected thereto, and the return plate assembly can be moved along the left and right directions of the mounting platform.

[0010] As a further improvement of the present invention, the connecting seat assembly includes a connecting seat, a fixing plate, an adjusting bolt and a baffle. A first groove is provided on the connecting seat on a side close to the electric pole, a cross-shaped notch is provided in the middle of the first groove, and a plurality of countersunk holes are provided at the bottom of the first groove. The two fixing plates are fixedly connected to the connecting seat, and the adjusting bolt is provided on the fixing plate. The baffle and the connecting seat are fastened together by bolts to cover the cross-shaped notch.

[0011] As a further improvement of the present invention, the movable plate assembly comprises a movable plate, a sealing plate and a sliding plate, one end of the movable plate is detachably connected to the sealing plate, the other end is fixedly connected to the sliding plate, and a T-slot is provided on the movable plate.

[0012] As a further improvement of the present invention, the return plate assembly includes a return plate, a connecting column and a connecting screw, a second groove is provided in the center of the return plate, the return plate is located on the top of the connecting column, the connection between the return plate and the connecting column is achieved by the connecting screw, and the connecting column is engaged in the T-slot.

[0013] As a further improvement of the present invention, the first fastening assembly includes a first semicircular clamp, a second semicircular clamp, a clamp reinforcement rib and a clamp mounting plate, one end of the clamp reinforcement rib is fixedly connected to the second semicircular clamp, and the other end is fixedly connected to the clamp mounting plate, a mounting hole is provided on the clamp mounting plate, and the mounting hole corresponds to the threaded hole of the mounting box body, and the first semicircular clamp is connected to the second semicircular clamp by bolts.

[0014] As a further improvement of the present invention, it also includes a second fastening assembly, which includes the first semicircular clamp, the second semicircular clamp and an L-shaped support plate, the L-shaped support plate and the second semicircular clamp are fixedly connected, and the L-shaped support plate is fixedly connected to the bottom plate of the installation box.

[0015] The present invention also provides a method for installing a pole-mounted circuit breaker, the method comprising the following steps: S1, lift the installation platform to the specified height through the lifting mechanism and then lock it; S2, extending the first electric push rod assembly to push the installation box assembly to the right, and stopping when the rightmost end of the moving plate assembly exceeds the center of the pole; S3, move the two movable plate assemblies at the front and rear ends so that they are tangent to the electric pole, measure and record the distance between each movable plate assembly and the corresponding fixed plate, and calculate the distance L1 that the installation box assembly needs to move in the front and rear direction; S4, the second electric push rod assembly and the third electric push rod assembly are extended and retracted accordingly, so that the installation box assembly moves in the front-rear direction, ensuring that the installation box assembly and the electric pole are on the same horizontal axis; S5, move the right end of the return plate assembly to make it tangent to the electric pole, measure and record the distance between the two return plate assemblies, and calculate the distance L2 that the installation box assembly needs to move in the left and right directions; S6, separating the measurement feedback component from the installation box assembly, and fastening the first fastening assembly without the first semicircular clamp to the installation box assembly by means of bolts; S7, after the first electric push rod assembly is extended by L2, the second semicircular clamp is engaged with the electric pole, and the first semicircular clamp and the second semicircular clamp are pre-tightened by bolts; S8, resetting the first electric push rod assembly, retracting the second electric push rod assembly and the third electric push rod assembly, and according to the need of adjusting the inclination angle, determining to install the oblique push block assembly at the jacking end of the extended shaft of one of the second electric push rod assembly and the third electric push rod assembly, starting the electric push rod assembly with the oblique push block assembly installed, so that the installation box assembly rotates around the center of the electric pole; S9, when the connection position of the vacuum interrupter reaches the preset position, the operation of the electric push rod assembly containing the oblique push block assembly is stopped, and the bolts between the first semicircular clamp and the second semicircular clamp are tightened; S10, removing the installation platform assembly by lowering the jacking mechanism.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a pole-mounted circuit breaker that is easy to install and fix. By arranging a lifting mechanism, a utility pole, a mounting box assembly, a vacuum arc extinguishing chamber, a mounting platform assembly, a measurement feedback component, a first fastening assembly and a second fastening assembly, the mounting box assembly and the utility pole can be conveniently fixed without the need for multiple people to cooperate at the installation site.

[0017] (2) The present invention provides a pole-mounted circuit breaker that is easy to install and fix. Both the moving plate assembly and the return plate assembly can move quickly. By measuring the distance between the two sets of moving plates or the two sets of return plates, the relative position size of the installation box assembly and the electric pole can be quickly obtained. By adjusting the stroke of the electric push rod assembly, accurate positioning is achieved. The present invention solves the problem that the wiring position of the pole-mounted circuit breaker may have a certain inclination angle with the direction of the wire by setting the oblique push block assembly and the electric push rod assembly.

[0018] (3) The present invention provides a pole-mounted circuit breaker that is easy to install and fix. A second fastening assembly is arranged at the bottom of the mounting box assembly, thereby ensuring reliable fixation of the circuit breaker to the electric pole and improving the strength and rigidity of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the present invention in an initial installation state; Figure 2 The present invention Figure 1 A top view of Figure 3 It is a structural schematic diagram of the measurement feedback component of the present invention; Figure 4 The present invention Figure 3 A partial enlarged view of Figure 5 is a structural schematic diagram of a connecting seat assembly of the present invention; Figure 6 is a schematic structural diagram of a movable plate assembly of the present invention; Figure 7 It is a structural schematic diagram of the return plate assembly of the present invention; Figure 8 is a schematic structural diagram of a first fastening assembly of the present invention; Fig. 9 It is a schematic diagram of the measurement feedback component of the present invention moving to the right; Fig.10 It is a schematic diagram of two movable plate assemblies of the present invention being tangent to a utility pole; Fig.11 It is a schematic diagram of the installation box assembly being coaxial with the electric pole after being moved in the front-rear direction; Fig.12 It is a schematic diagram of the rightmost return plate assembly of the present invention being tangent to the electric pole; Fig.13 is a schematic diagram of the installation of the first fastening assembly without the first semicircular clamp of the present invention; Fig.14 It is a schematic diagram of the second semicircular clamp of the present invention being engaged with a utility pole; Fig.15 is a schematic diagram of the first fastening assembly of the present invention when being pre-tightened; Fig.16 It is a schematic diagram of the installation box assembly of the present invention rotating around a utility pole; Fig.17 It is a schematic diagram of the present invention in the final state.

[0020] In the figure: 100, electric pole; 200, mounting box assembly; 210, mounting box body; 220, mounting box top plate; 230, mounting box bottom plate; 300, vacuum interrupter; 400, mounting platform assembly; 410, mounting platform; 420, first electric push rod assembly; 430, second electric push rod assembly; 440, third electric push rod assembly; 450, oblique push block assembly; 500, connecting seat assembly; 510, connecting seat; 511, first groove; 512, cross-shaped notch; 513, countersunk hole; 520, Fixed plate; 530, adjusting bolt; 540, baffle; 600, movable plate assembly; 610, movable plate; 611, T-slot; 620, sealing plate; 630, sliding plate; 700, return plate assembly; 710, return plate; 711, second groove; 720, connecting column; 730, connecting screw; 800, first fastening assembly; 810, first semicircular clamp; 820, second semicircular clamp; 830, clamp reinforcement rib; 840, clamp mounting plate; 900, second fastening assembly; 930, L-shaped support plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be pointed out that the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0023] It should be understood that, in the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense.

[0024] Example 1: See attached Figures 1 to 17The present embodiment 1 provides a pole mounted circuit breaker that is easy to install and fix, comprising a lifting mechanism, a utility pole 100, an installation box assembly 200, a vacuum interrupter 300, an installation platform assembly 400, a measurement feedback component and a first fastening assembly 800; a plurality of vacuum interrupters 300 are installed on the top of the installation box assembly 200; the installation platform assembly 400 is located on the top of the lifting mechanism, and the height of the installation platform assembly 400 is adjusted by lifting and lowering the lifting mechanism; the measurement feedback component and the installation box assembly 200 are both located on the top of the installation platform assembly 400; the measurement feedback component is located on one side of the installation box assembly 200 and connected thereto, the relative distance between the installation box assembly 200 and the utility pole 100 is first determined by the measurement feedback component, and then the measurement feedback component is moved to a specified position by the installation platform assembly 400, and then the measurement feedback component and the installation box assembly 200 are separated, and then the first fastening assembly 800 is fixedly connected to the installation box assembly 200, and the first fastening assembly 800 is connected to the utility pole 100 by the installation platform assembly 400.

[0025] The mounting box assembly 200 includes a mounting box body 210, a mounting box top plate 220 and a mounting box bottom plate 230. The mounting box top plate 220 is located at the top of the mounting box body 210 and connected thereto, the mounting box bottom plate 230 is located at the bottom of the mounting box body 210 and connected thereto, reinforcement plates are provided on the front, back and side away from the utility pole 100 of the mounting box body 210, a plurality of threaded holes are provided on the side of the mounting box body 210 close to the utility pole 100, and threaded holes are provided on the mounting box bottom plate 230.

[0026] The vacuum interrupter 300 is usually composed of an upper conductive rod, a lower conductive rod, a control rod and other components, wherein the upper conductive rod and the lower conductive rod are both provided with wiring connection holes for connection with external wires.

[0027] The mounting platform assembly 400 includes a mounting platform 410, a first electric push rod assembly 420, a second electric push rod assembly 430 and a third electric push rod assembly 440. The mounting platform 410 is fixedly connected to the lifting mechanism. The first electric push rod assembly 420, the second electric push rod assembly 430 and the third electric push rod assembly 440 are all located on the top of the mounting platform 410 and connected thereto. The first electric push rod assembly 420 is extended to push the mounting box assembly 200 toward the pole 100. The second electric push rod assembly 430 and the third electric push rod assembly 440 are symmetrically arranged with respect to the mounting box assembly 200. The mounting platform assembly 400 also includes an oblique push block assembly 450. The lifting ends of the extended shafts of the second electric push rod assembly 430 and the lifting ends of the extended shafts of the third electric push rod assembly 440 are both provided with mounting holes for mounting the oblique push block assembly 450.

[0028] The measurement feedback component includes a connecting seat assembly 500, a movable plate assembly 600 and a return plate assembly 700. The connecting seat assembly 500 is located on one side of the mounting box assembly 200 and is connected thereto; the movable plate assembly 600 is engaged in the connecting seat assembly 500 and can move along the front and rear directions of the mounting platform 410; the return plate assembly 700 is located on the top of the movable plate assembly 600 and is connected thereto; the return plate assembly 700 can move along the left and right directions of the mounting platform 410.

[0029] The connecting seat assembly 500 includes a connecting seat 510, a fixing plate 520, an adjusting bolt 530 and a baffle 540. A first groove 511 is provided on the side of the connecting seat 510 close to the electric pole 100, a cross-shaped notch 512 is provided in the middle of the first groove 511, and a plurality of countersunk holes 513 are provided at the bottom of the first groove 511. The two fixing plates 520 are fixedly connected to the connecting seat 510, and an adjusting bolt 530 is provided on the fixing plate 520. The baffle 540 and the connecting seat 510 are fastened together by bolts to cover the cross-shaped notch 512.

[0030] The movable plate assembly 600 includes a movable plate 610 , a sealing plate 620 and a sliding plate 630 . The sealing plate 620 is detachably connected to one end of the movable plate 610 , and the sliding plate 630 is fixedly connected to the other end. The sliding plate 630 is engaged with the first groove 511 . The movable plate 610 is provided with a T-slot 611 .

[0031] The return plate assembly 700 includes a return plate 710, a connecting column 720 and a connecting screw 730. The center of the return plate 710 is provided with a second groove 711, and the second groove 711 is a waist-shaped hole. The return plate 710 is located at the top of the connecting column 720. The connection between the return plate 710 and the connecting column 720 is achieved by connecting screws 730. The connecting column 720 is engaged in the T-slot 611. The return plate assembly 700 of the present invention is two pieces. In order to facilitate subsequent measurements, the return plate assembly 700 at the left end is usually fixed with the connecting seat 510 in the left and right directions, that is, the return plate assembly 700 at the left end cannot move in the left and right directions, but it does not hinder the movement of the two movable plate assemblies 600 in the front and back directions.

[0032] The first fastening assembly 800 includes a first semicircular clamp 810, a second semicircular clamp 820, a clamp reinforcement rib 830 and a clamp mounting plate 840. One end of the clamp reinforcement rib 830 is fixedly connected to the second semicircular clamp 820, and the other end is fixedly connected to the clamp mounting plate 840. A mounting hole is provided on the clamp mounting plate 840, and the mounting hole corresponds to the threaded hole of the mounting box body 210. The first semicircular clamp 810 and the second semicircular clamp 820 are connected by bolts.

[0033] The present invention also includes a second fastening assembly 900, which includes a first semicircular clamp 810, a second semicircular clamp 820 and an L-shaped support plate 930, wherein the L-shaped support plate 930 is fixedly connected to the second semicircular clamp 820, and the L-shaped support plate 930 is fixedly connected to the bottom plate 230 of the installation box.

[0034] The present invention also provides a method for installing a pole-mounted circuit breaker that is easy to install and fix, and the installation method comprises the following steps: S1, set the initial relative position of the installation box assembly 200 and the installation platform 410, please refer to the attached Figure 1 and attached Figure 2 , place the installation box assembly 200, the vacuum arc chamber 300 and the measurement feedback component as a whole on the installation platform 410, in the front and rear directions, the second electric push rod assembly 430 and the third electric push rod assembly 440 are in a symmetrical state, extend the second electric push rod assembly 430 and the third electric push rod assembly 440, so that the lifting ends of the extended shafts of the second electric push rod assembly 430 and the third electric push rod assembly 440 abut against the reinforcing plate of the installation box body 210, fix the movable plate assembly 600 and its corresponding fixed plate 520 with a cable tie, and the two return plate assemblies 700 are also fixed with a cable tie. In order to facilitate subsequent debugging, the rightmost end of the movable plate assembly 600 is usually flush with the rightmost end of the installation platform 410, and then the first electric push rod assembly 420 is extended to make it abut against the installation box assembly 200. At this time, the three sides of the installation box assembly 200 are limited and placed on the installation platform 410, and the installation platform 410 can be lifted to a specified height by the lifting mechanism and then locked.

[0035] S2, extend the first electric push rod assembly 420, push the installation box assembly 200 and drive the measurement feedback component to move to the right. For details, please refer to the attached Fig. 9 When the rightmost end of the moving plate assembly 600 exceeds the center of the pole 100, the operation of the first electric push rod assembly 420 is stopped.

[0036] S3, move the two movable plate assemblies 600 at the front and rear ends to make them tangent to the pole 100, measure and record the distance between each movable plate assembly 600 and the corresponding fixed plate 520, please refer to the attached Fig.10 In the figure, the distance between the back movable plate assembly 600 and its corresponding fixed plate 520 is a, and the distance between the front movable plate assembly 600 and its corresponding fixed plate 520 is b, and a>b, so the installation box assembly 200 needs to move forward a distance L1, where L1=(ab) / 2; it is not difficult to understand that if a<b, the installation box assembly 200 needs to move backward a distance L1=(ba) / 2.

[0037] S4, the second electric push rod assembly 430 and the third electric push rod assembly 440 are extended and retracted accordingly, so that the installation box assembly 200 moves in the front-to-back direction, ensuring that the installation box assembly 200 and the electric pole 100 are on the same horizontal axis in the front-to-back direction. For details, please refer to the attached Fig.11 , reduce the working stroke of the third electric push rod assembly 440 by L1, and increase the working stroke of the second electric push rod assembly 430 by L1, so that the installation box assembly 200 moves forward by L1. After the movement is completed, the installation box assembly 200 is still in contact with the three electric push rod assemblies.

[0038] S5, move the right end of the return plate assembly 700 so that it is tangent to the pole 100, measure and record the distance c between the two return plate assemblies 700, please refer to the attached Fig.12 and attached Fig.13 , calculate the distance L2 that the installation box assembly 200 needs to move to the right, where L2=c+d+ef, where d is the distance between the rightmost end of the left end return plate assembly 700 and the installation box assembly 200, e is the width of the return plate assembly 700, and f is the minimum distance between the inner arc surface of the second semicircular clamp 820 and the left end of the clamp mounting plate 840. It is not difficult to understand that the dimensions d, e and f are fixed values ​​and do not need to be measured.

[0039] S6, separate the measurement feedback component and the installation box assembly 200, and fasten the first fastening assembly 800 without the first semicircular clamp 810 to the installation box assembly 200 by bolts. Fig.13 .

[0040] S7, after the first electric push rod assembly 420 is extended by L2, the installation box assembly 200 is moved to the right, at which time the second semicircular clamp 820 is engaged with the electric pole 100, and the first semicircular clamp 810 and the second semicircular clamp 820 are pre-tightened by bolts. For details, please refer to the attached Fig.14 and attached Fig.15 .

[0041] S8, reset the first electric push rod assembly 420, shrink the second electric push rod assembly 430 and the third electric push rod assembly 440, and according to the need for adjusting the inclination angle, determine to install the oblique push block assembly 450 at the lifting end of the extended shaft of one of the second electric push rod assembly 430 and the third electric push rod assembly 440, start the electric push rod assembly installed with the oblique push block assembly 450, and rotate the installation box assembly 200 around the center of the electric pole 100. Since the upper conductive rod and the lower conductive rod of the vacuum interrupter 300 are both provided with wiring connection holes, the installation box assembly 200 may have a certain inclination angle with the electric wire, but it can be visually observed in step S1, so this inclination angle is generally not too large. Fig.16A schematic diagram of the installation box assembly 200 rotating forward is given. At this time, the second electric push rod assembly 430 and the third electric push rod assembly 440 are retracted, and the second electric push rod assembly 430 is extended after the oblique push block assembly 450 is installed at the lifting end of the extended shaft of the second electric push rod assembly 430. The installation box assembly 200 rotates forward around the center of the utility pole 100 by continuously knocking the oblique push block assembly 450 on the reinforcing plate on the back of the installation box body 210.

[0042] It should be noted that, for a smaller tilt angle, the third electric push rod assembly 440 can be fully retracted and completed by an inclined push block assembly 450. However, for a larger tilt angle that does not occur frequently, the third electric push rod assembly 440 needs to be separated from the mounting platform 410, and multiple inclined push block assemblies 450 are required to complete the deflection. Assuming that the deflection angle to be deflected is 20 degrees, a 10-degree inclined push block assembly 450 and a 20-degree inclined push block assembly 450 can be manufactured. First, the 10-degree inclined push block assembly 450 is separated from the mounting platform 410. 0 is installed on the lifting end of the extended shaft of the second electric push rod assembly 430, and the second electric push rod assembly 430 is lifted up, and the installation box assembly 200 is rotated 10 degrees forward around the center of the utility pole 100 by continuous knocking, and then the second electric push rod assembly 430 is retracted, and then the 10-degree oblique push block assembly 450 is removed and the 20-degree oblique push block assembly 450 is installed, and then the second electric push rod assembly 430 is lifted up, and the installation box assembly 200 is rotated 20 degrees forward around the center of the utility pole 100 by continuous knocking.

[0043] It is not difficult to understand that if the installation box assembly 200 is required to rotate backward at a certain inclination angle, the inclination angle of the installation box assembly 200 can be adjusted by simply retracting the second electric push rod assembly 430 and installing the inclined push block assembly 450 on the third electric push rod assembly 440.

[0044] S9. When the connection position of the vacuum interrupter 300 reaches the preset position, stop the operation of the electric push rod assembly containing the inclined push block assembly 450, and tighten the bolts between the first semicircular clamp 810 and the second semicircular clamp 820. In order to better achieve the tightening effect, before tightening, a copper sheet is usually placed in the gap between the first semicircular clamp 810 and the electric pole 100 and in the gap between the second semicircular clamp 820 and the electric pole 100, so that the first fastening assembly 800 is firmly connected to the electric pole 100.

[0045] S10, removing the installation platform assembly 400 by lowering the jacking mechanism.

[0046] Furthermore, as attached Fig.17As shown, a second fastening assembly 900 can be installed at the bottom of the installation box assembly 200 of the present invention, so that the second fastening assembly 900 is firmly connected to the utility pole 100, and the installation box assembly 200 is supported by an L-shaped support plate 930.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pole-mounted circuit breaker that is easy to install and fix, comprising a lifting mechanism and a utility pole (100), characterized in that: It also comprises an installation box assembly (200), a vacuum interrupter (300), an installation platform assembly (400), a measurement feedback component and a first fastening assembly (800); a plurality of vacuum interrupters (300) are installed on the top of the installation box assembly (200); the installation platform assembly (400) is located on the top of the lifting mechanism; the measurement feedback component and the installation box assembly (200) are both located on the top of the installation platform assembly (400); the measurement feedback component is located on one side of the installation box assembly (200) and is connected thereto; The mounting platform assembly (400) comprises a mounting platform (410), a first electric push rod assembly (420), a second electric push rod assembly (430) and a third electric push rod assembly (440); the mounting platform (410) is fixedly connected to the jacking mechanism; the first electric push rod assembly (420), the second electric push rod assembly (430) and the third electric push rod assembly (440) are all located on the top of the mounting platform (410) and connected thereto; the mounting platform assembly (400) further comprises an inclined push block assembly (450); The measurement feedback component comprises a connecting seat assembly (500), a moving plate assembly (600) and a return plate assembly (700); The connecting seat assembly (500) comprises a connecting seat (510), a fixing plate (520), an adjusting bolt (530) and a baffle (540); the two fixing plates (520) are fixedly connected to the connecting seat (510); and the adjusting bolt (530) is disposed on the fixing plate (520); The movable plate assembly (600) comprises a movable plate (610), a sealing plate (620) and a sliding plate (630); one end of the movable plate (610) is detachably connected to the sealing plate (620), and the other end is fixedly connected to the sliding plate (630).

2. The pole-mounted circuit breaker that is easy to install and fix according to claim 1, characterized in that: The installation box assembly (200) comprises an installation box body (210), an installation box top plate (220) and an installation box bottom plate (230); the installation box top plate (220) is located at the top of the installation box body (210) and connected thereto; the installation box bottom plate (230) is located at the bottom of the installation box body (210) and connected thereto; a reinforcement plate is provided on the front and back sides of the installation box body (210) and on a side away from the electric pole (100); a plurality of threaded holes are provided on a side of the installation box body (210) close to the electric pole (100); and a threaded hole is provided on the installation box bottom plate (230).

3. The pole-mounted circuit breaker that is easy to install and fix according to claim 2, characterized in that: The protruding shaft lifting end of the second electric push rod assembly (430) and the protruding shaft lifting end of the third electric push rod assembly (440) are both provided with mounting holes for mounting the oblique push block assembly (450).

4. The pole-mounted circuit breaker that is easy to install and fix according to claim 3, characterized in that: The connecting seat assembly (500) is located on one side of the installation box assembly (200) and is connected thereto; the movable plate assembly (600) is engaged in the connecting seat assembly (500) and is movable along the front-rear direction of the installation platform (410); the retractable plate assembly (700) is located on the top of the movable plate assembly (600) and is connected thereto; the retractable plate assembly (700) is movable along the left-right direction of the installation platform (410).

5. The pole-mounted circuit breaker that is easy to install and fix according to claim 4, characterized in that: A first groove (511) is provided on a side of the connection seat (510) close to the electric pole (100), a cross-shaped notch (512) is provided in the middle of the first groove (511), and a plurality of countersunk holes (513) are provided at the bottom of the first groove (511). The baffle plate (540) and the connection seat (510) are fastened together by bolts to cover the cross-shaped notch (512).

6. The pole-mounted circuit breaker that is easy to install and fix according to claim 5, characterized in that: The movable plate (610) is provided with a T-shaped slot (611).

7. The pole mounted circuit breaker that is easy to install and fix according to claim 6, characterized in that: The return plate assembly (700) comprises a return plate (710), a connecting column (720) and a connecting screw (730); a second groove (711) is provided in the center of the return plate (710); the return plate (710) is located on the top of the connecting column (720); the return plate (710) and the connecting column (720) are connected by the connecting screw (730); and the connecting column (720) is engaged in the T-slot (611).

8. The pole-mounted circuit breaker that is easy to install and fix according to claim 7, characterized in that: The first fastening assembly (800) comprises a first semicircular clamp (810), a second semicircular clamp (820), a clamp reinforcement rib (830) and a clamp mounting plate (840), wherein one end of the clamp reinforcement rib (830) is fixedly connected to the second semicircular clamp (820), and the other end is fixedly connected to the clamp mounting plate (840), and a mounting hole is provided on the clamp mounting plate (840), and the mounting hole corresponds to the threaded hole of the mounting box body (210), and the first semicircular clamp (810) and the second semicircular clamp (820) are connected by bolts.

9. The pole-mounted circuit breaker that is easy to install and fix according to claim 8, characterized in that: The device further comprises a second fastening assembly (900), wherein the second fastening assembly (900) comprises the first semicircular clamp (810), the second semicircular clamp (820) and an L-shaped support plate (930), wherein the L-shaped support plate (930) and the second semicircular clamp (820) are fixedly connected, and the L-shaped support plate (930) is fixedly connected to the bottom plate (230) of the installation box.

10. The method for installing a pole-mounted circuit breaker that is easy to install and fix according to claim 8 or claim 9, characterized in that: The installation method includes the following steps: S1, lifting the installation platform (410) to a specified height by means of a lifting mechanism and then locking it; S2, extending the first electric push rod assembly (420) to push the installation box assembly (200) to move rightward, and stopping when the rightmost end of the moving plate assembly (600) exceeds the center of the electric pole (100); S3, moving the two movable plate assemblies (600) at the front and rear ends so that they are tangent to the electric pole (100), measuring and recording the distance between each movable plate assembly (600) and the corresponding fixed plate (520), and calculating the distance L1 that the installation box assembly (200) needs to move in the front-rear direction; S4, the second electric push rod assembly (430) and the third electric push rod assembly (440) are extended and retracted accordingly, so that the installation box assembly (200) moves in the front-rear direction, ensuring that the installation box assembly (200) and the electric pole (100) are on the same horizontal axis; S5, move the right end return plate assembly (700) so that its position is tangent to the electric pole (100), measure and record the distance between the two return plate assemblies (700), and calculate the distance L2 that the installation box assembly (200) needs to move in the left and right directions; S6, separating the measurement feedback component from the installation box assembly (200), and fastening the first fastening assembly (800) without the first semicircular clamp (810) to the installation box assembly (200) by means of bolts; S7, after the first electric push rod assembly (420) is extended by L2, the second semicircular clamp (820) is engaged with the electric pole (100), and the first semicircular clamp (810) and the second semicircular clamp (820) are pre-tightened by bolts; S8, resetting the first electric push rod assembly (420), retracting the second electric push rod assembly (430) and the third electric push rod assembly (440), and, according to the need for adjusting the inclination angle, determining to install an oblique push block assembly (450) at the jacking end of the extended shaft of one of the second electric push rod assembly (430) and the third electric push rod assembly (440), and starting the electric push rod assembly with the oblique push block assembly (450) installed, so that the installation box assembly (200) rotates around the center of the electric pole (100); S9, when the connection position of the vacuum interrupter (300) reaches a preset position, the operation of the electric push rod assembly containing the oblique push block assembly (450) is stopped, and the bolts between the first semicircular clamp (810) and the second semicircular clamp (820) are tightened; S10, removing the installation platform assembly (400) by lowering the jacking mechanism.

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