An assembly auxiliary device for pole-mounted circuit breakers

By utilizing a system of casters, synchronous belts, and motor-driven threaded rods in the auxiliary assembly device for pole-mounted circuit breakers, the problem of device instability affecting the accuracy of module docking was solved, thereby improving the stability and accuracy of the device.

CN224438345UActive Publication Date: 2026-06-30FUJIAN ZHONGWANG ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN ZHONGWANG ELECTRIC CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing pole-mounted circuit breaker assembly auxiliary device is unstable during the transportation of the lower module because it can only lock the wheels of the caster wheels, which affects the accuracy of docking the upper and lower modules.

Method used

By installing casters on the bottom of the mounting frame and fixing mounting blocks on the front and back of the mounting frame, a protective shell is set up with the mounting blocks. The connection of the timing belt and pulleys makes the adjusting screw rotate synchronously, driving the sliding rod to descend. The rubber pad blocks contact the ground to support the device and prevent the device from moving after the casters are locked. Combined with the motor-driven threaded rod to raise and lower the mounting plate and vertical rod, the stability and accuracy of the device are improved.

Benefits of technology

This effectively prevents the movement of the device after the casters are locked, improves the accuracy of the docking between the upper and lower modules, and ensures the stability and precision of the assembly process.

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Abstract

This application relates to the technical field of auxiliary equipment for pole-mounted circuit breaker assembly, and discloses an assembly auxiliary device for pole-mounted circuit breakers, including a mounting frame and a protective shell. The bottom surface of the mounting frame is fixedly equipped with equidistant casters, and mounting blocks are fixedly connected to both the front and back of the mounting frame. This auxiliary device for pole-mounted circuit breakers, by setting up adjusting screws, pulley one, pulley two, sliding rods, and other components, moves the device to a designated position. Rotating the adjusting screw with a handle causes pulley one to rotate. Through the connection of synchronous belt one, pulley one, pulley two, and synchronous belt two, the four adjusting screws rotate synchronously. Adjusting the screws causes the sliding rod to descend, causing a rubber pad to contact the ground and lift the device. At this time, the casters are away from the ground, supported by the rubber pad, which improves the stability of the device and prevents movement even after the casters are locked, thus improving the accuracy of docking the upper and lower modules.
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Description

Technical Field

[0001] This application relates to the technical field of auxiliary equipment for pole-mounted circuit breaker assembly, specifically an assembly auxiliary device for pole-mounted circuit breakers. Background Technology

[0002] The pole-mounted circuit breaker consists of two modules, upper and lower. During the production and assembly process, the upper and lower modules are assembled separately and then joined together. Current technology requires lifting the upper module and placing the lower module below it before assembling and fixing the upper and lower modules. Therefore, the assembly lines for the upper and lower modules cannot be too far apart. The pole-mounted circuit breaker assembly auxiliary mechanism is used as an assembly support for the lower module of the pole-mounted circuit breaker. Equipped with wheels, it can be directly pushed away after assembly to assemble with the upper module of the pole-mounted circuit breaker.

[0003] However, in the existing assembly auxiliary device for pole-mounted circuit breakers, it was found that when transporting the lower module, the casters of the trolley need to be locked, but only the casters can be locked. This makes the trolley unstable and prone to movement, affecting the accuracy of docking the upper and lower modules. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an assembly auxiliary device for pole-mounted circuit breakers. This device has advantages such as improving the stability of the device, preventing the device from still moving after the casters are locked, and improving the accuracy of docking between upper and lower modules. It solves the problem that existing technologies can only lock the casters, which leads to instability of the trolley, easy movement of the trolley, and affects the accuracy of docking between upper and lower modules.

[0005] To achieve the above objectives, this application provides the following technical solution: an assembly auxiliary device for a pole-mounted circuit breaker, comprising a mounting frame and a protective shell. The bottom surface of the mounting frame is fixedly equipped with equidistant casters. Mounting blocks are fixedly connected to both the front and back surfaces of the mounting frame. An adjusting screw is rotatably connected to the inner wall of each mounting block. The outer surface of each adjusting screw is rotatably connected to the inner wall of the protective shell. The outer surface of each mounting block is fixedly connected to the inner wall of the protective shell. A first synchronous belt and two second synchronous belts are provided above the mounting frame. Two pulleys engage with the inner wall of the first synchronous belt, and two pulleys engage with the inner wall of each second synchronous belt. The inner walls of each pulley and pulley are fixedly connected to the outer surfaces of corresponding adjusting screws. A sliding rod is slidably connected to the inner wall of each mounting block. The inner wall of each sliding rod is threadedly connected to the outer surface of the corresponding adjusting screw. A rubber pad is fixedly connected to the bottom end of each sliding rod.

[0006] To improve the stability of the device and prevent it from moving even after the casters are locked, thus enhancing the accuracy of docking the upper and lower modules, casters are installed on the bottom of the mounting frame to allow the device to move. Mounting blocks are fixed to the front and back of the mounting frame, and protective shells are installed and fixed to the mounting blocks to protect synchronous belts one and two. Pulleys one and two are fixed to their corresponding adjusting screws. When one of the adjusting screws is rotated, the connection between synchronous belt one, pulley one, pulley two, and synchronous belt two allows all four adjusting screws to rotate synchronously. The threaded connection between the adjusting screw and the sliding rod causes the corresponding sliding rod to descend, bringing the rubber pad into contact with the ground and lifting the device, thus moving the casters away from the ground. The rubber pads then support the device, improving its stability and preventing movement even after the casters are locked, thereby enhancing the accuracy of docking the upper and lower modules.

[0007] Furthermore, a base plate is fixedly connected to the upper surface of the mounting bracket, and a motor is fixedly mounted on the upper surface of the base plate.

[0008] The above method involves installing the base plate on the upper surface of the mounting frame and fixing the base plate to the mounting frame to achieve the installation of the base plate. The motor is then installed on the upper surface of the base plate and fixed to achieve the support and installation of the motor.

[0009] Furthermore, the output shaft of the motor is fixedly connected to a threaded rod, and a threaded cylinder is threadedly connected to the outer surface of the threaded rod.

[0010] The above scheme involves setting a threaded rod on the output shaft of the motor and fixing the threaded rod to the output shaft of the motor. The motor enables the threaded rod to rotate. A threaded cylinder is installed on the surface of the threaded rod, and the threaded rod and the threaded cylinder are connected by a thread. The forward and reverse rotation of the threaded rod enables the threaded cylinder to rise and fall.

[0011] Furthermore, a mounting plate is fixedly connected to the outer surface of the threaded cylinder, and vertical rods arranged at equal intervals are fixedly connected to the upper surface of the mounting plate.

[0012] The above method involves mounting a plate on the surface of a threaded cylinder and fixing it between them. A vertical rod is fixed to the upper surface of the mounting plate, and the vertical rod can be raised and lowered by raising and lowering the mounting plate.

[0013] Furthermore, the upper surface of the base plate is fixedly connected with guide rods arranged at equal intervals, and the outer surface of each guide rod is slidably connected to the corresponding vertical rod and the inner wall of the mounting plate.

[0014] With the above solution, the guide rod is installed on the upper surface of the base plate, and both the vertical rod and the inner wall of the mounting plate have through holes that are compatible with the guide rod. By connecting the guide rod with the through holes, the limit of the lifting and lowering of the mounting plate and the vertical rod can be achieved.

[0015] Furthermore, two support rods are provided above the mounting plate, and the bottom surface of each support rod is fixedly connected to the top of the corresponding vertical rod.

[0016] With the above solution, support rod one is placed above the mounting plate, and the bottom surface of support rod one is connected to the top of the corresponding vertical rod. The vertical rod supports support rod one, and support rod one supports the bottom edge of the lower module.

[0017] Furthermore, a second support rod is fixedly connected between the two first support rods.

[0018] The above scheme involves placing support rod 2 between two support rods 1, and fixing both ends of support rod 2 to the corresponding support rods 1, thereby achieving the installation of support rod 2. Support rods 1 and 2 can provide support for the lower module.

[0019] Furthermore, two bolts are fixedly installed on the upper surface of the second support rod, and a trolley mounting plate is fixedly connected to the right side of the second support rod.

[0020] The above solution involves installing bolts on the upper surface of support rod two. These bolts can penetrate the connection holes of the bottom panel of the lower module. The locking of the nuts enables the positioning of the lower module during placement. The bolts also improve the stability of the lower module during placement. The trolley mounting plate is then installed on the right side of support rod two, thus enabling the installation of the trolley mounting plate.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This assembly auxiliary device for pole-mounted circuit breakers, consisting of adjusting screws, pulley one, pulley two, and sliding rods, allows the device to be moved to a designated position. Rotating the adjusting screw with a handle causes pulley one to rotate. Through the connection of synchronous belt one, pulley one, pulley two, and synchronous belt two, the four adjusting screws rotate synchronously. Adjusting the screws causes the sliding rod to descend, bringing a rubber pad into contact with the ground and lifting the device. At this point, the casters are away from the ground, and the rubber pads support the device, improving its stability and preventing movement even when the casters are locked. This enhances the accuracy of the upper and lower module docking. A motor rotates a threaded rod, which in turn raises a threaded cylinder. This, in turn, causes the mounting plate to rise, raising the vertical rod and allowing the lower module above support rod one and support rod two to rise. This facilitates the adjustment of the assembly position of the upper and lower modules during assembly. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is the overall main view structure diagram of this application;

[0025] Figure 3 This is a structural diagram showing the connection relationship between support rod 2 and the bolts in this application;

[0026] Figure 4 This is a structural diagram showing the connection relationship between the threaded rod and the threaded cylinder in this application;

[0027] Figure 5 This is a structural diagram showing the connection relationship between the timing belt and the pulley in this application;

[0028] Figure 6 This is a structural diagram showing the connection relationship between the adjusting screw and the sliding rod in this application.

[0029] In the picture:

[0030] 1. Mounting bracket; 2. Casters; 3. Mounting block; 4. Protective shell; 5. Adjusting screw; 6. Synchronous belt one; 7. Pulley one; 8. Pulley two; 9. Synchronous belt two; 10. Sliding rod; 11. Rubber pad; 12. Base plate; 13. Motor; 14. Threaded rod; 15. Threaded cylinder; 16. Mounting plate; 17. Guide rod; 18. Vertical rod; 19. Support rod one; 20. Support rod two; 21. Bolts; 22. Cart hanging plate. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 4 , Figure 5 and Figure 6This embodiment of an assembly auxiliary device for a pole-mounted circuit breaker includes a mounting frame 1 and a protective shell 4. The bottom surface of the mounting frame 1 is fixedly equipped with equidistant casters 2. Mounting blocks 3 are fixedly connected to both the front and back of the mounting frame 1. An adjusting screw 5 is rotatably connected to the inner wall of each mounting block 3. The outer surface of each adjusting screw 5 is rotatably connected to the inner wall of the protective shell 4. The outer surface of each mounting block 3 is fixedly connected to the inner wall of the protective shell 4. A synchronous belt 6 and two synchronous belts 9 are provided above the mounting frame 1. Two pulleys 7 mesh with the inner wall of the synchronous belt 6. Two pulleys 8 mesh with the inner wall of each synchronous belt 9. The inner walls of each pulley 7 and pulley 8 are fixedly connected to the outer surface of the corresponding adjusting screw 5. A sliding rod 10 is slidably connected to the inner wall of each mounting block 3. The inner wall of each sliding rod 10 is threadedly connected to the outer surface of the corresponding adjusting screw 5. A rubber pad 11 is fixedly connected to the bottom end of each sliding rod 10.

[0033] Please see Figure 3 and Figure 4 A base plate 12 is fixedly connected to the upper surface of the mounting frame 1. A motor 13 is fixedly installed on the upper surface of the base plate 12. The base plate 12 is installed on the upper surface of the mounting frame 1 and fixed to the mounting frame 1 to realize the installation of the base plate 12. The motor 13 is installed on the upper surface of the base plate 12 and fixed to realize the support and installation of the motor 13.

[0034] Please see Figure 2 and Figure 4 The output shaft of motor 13 is fixedly connected to a threaded rod 14, and a threaded cylinder 15 is threadedly connected to the outer surface of the threaded rod 14. The threaded rod 14 is set on the output shaft of motor 13 and fixed to the output shaft of motor 13. The threaded rod 14 can be rotated by motor 13. The threaded cylinder 15 is installed on the surface of the threaded rod 14 and the threaded rod 14 and the threaded cylinder 15 are threadedly connected. The threaded cylinder 15 can be raised and lowered by the forward and reverse rotation of the threaded rod 14.

[0035] Please see Figure 2 , Figure 3 and Figure 4 A mounting plate 16 is fixedly connected to the outer surface of the threaded cylinder 15. Vertical rods 18 arranged at equal intervals are fixedly connected to the upper surface of the mounting plate 16. The mounting plate 16 is installed on the surface of the threaded cylinder 15 and fixed between them. The vertical rods 18 are fixed to the upper surface of the mounting plate 16. The vertical rods 18 can be raised and lowered by raising and lowering the mounting plate 16.

[0036] Please see Figure 4The upper surface of the base plate 12 is fixedly connected with guide rods 17 arranged at equal intervals. The outer surface of each guide rod 17 is slidably connected to the corresponding vertical rod 18 and the inner wall of the mounting plate 16. The guide rods 17 are mounted on the upper surface of the base plate 12, and the inner walls of the vertical rod 18 and the mounting plate 16 are equipped with through holes that are adapted to the guide rods 17. Through the connection between the guide rods 17 and the through holes, the limit of the lifting and lowering of the mounting plate 16 and the vertical rod 18 can be realized.

[0037] Please see Figure 1 , Figure 2 and Figure 3 Two support rods 19 are provided above the mounting plate 16. The bottom surface of each support rod 19 is fixedly connected to the top of the corresponding vertical rod 18. The support rods 19 are set above the mounting plate 16 and the bottom surface of the support rods 19 is connected to the top of the corresponding vertical rod 18. The vertical rod 18 supports the support rods 19, and the support rods 19 support the bottom edge of the lower module.

[0038] Please see Figure 3 A second support rod 20 is fixedly connected between two support rods 19. The second support rod 20 is placed between the two support rods 19, and both ends of the second support rod 20 are fixed to the corresponding support rods 19, thus realizing the installation of the second support rod 20. The support rods 19 and the second support rod 20 can achieve the support effect for the lower module.

[0039] Please see Figure 1 , Figure 2 and Figure 3 Two bolts 21 are fixedly installed on the upper surface of the second support rod 20. A trolley mounting plate 22 is fixedly connected to the right side of the second support rod 20. The bolts 21 are installed on the upper surface of the second support rod 20. The bolts 21 can pass through the connection holes of the bottom panel of the lower module. The positioning of the lower module is achieved by locking with nuts. The bolts 21 can also improve the stability of the lower module when it is placed. The trolley mounting plate 22 is installed on the right side of the second support rod 20 to achieve the installation of the trolley mounting plate 22.

[0040] This embodiment provides an assembly auxiliary device for a pole-mounted circuit breaker. By incorporating components such as adjusting screws 5, pulley 7, pulley 8, and sliding rods 10, the device is moved to a designated position. Rotating the adjusting screws 5 with handles causes pulley 7 to rotate. Through the connection of synchronous belts 6, 7, 8, and 9, the four adjusting screws 5 rotate synchronously. Adjusting screws 5 lowers the sliding rods 10, causing rubber pads 11 to contact the ground and lift the device. At this point, the casters 2 move away from the ground. The rubber pads 11 support the device, improving its stability and preventing movement even after the casters 2 are locked. This enhances the accuracy of the upper and lower module docking. Motor 13 rotates the threaded rod 14, which in turn raises the threaded cylinder 15. The mounting plate 16 then raises the vertical rod 18, allowing the lower module above support rods 19 and 20 to rise, facilitating the adjustment of the assembly position of the upper and lower modules during assembly.

[0041] It should be noted that motor 13 is a servo motor, which can realize the forward and reverse rotation of threaded rod 14. The forward and reverse rotation of threaded rod 14 enables threaded cylinder 15 and mounting plate 16 to be raised and lowered.

[0042] The working principle of the above embodiments is as follows:

[0043] First, align the connecting holes of the bottom panel of the lower module with the bolts 21, and then tighten the nuts to position the lower module. Support the lower module using support rod 19 and support rod 20, and move the device to the designated position. At this point, the upper and lower modules are aligned. After locking the caster 2, rotate one of the adjusting screws 5 with a handle to rotate the surface pulley 7. Through the connection of synchronous belt 6, pulley 7, pulley 8, and synchronous belt 9, the four adjusting screws 5 can rotate synchronously. By connecting the adjusting screws 5 with the sliding rod 10, the sliding rod 10 causes the rubber pad 11 to descend and contact the ground. When the device is lifted, the caster wheel 2 is away from the ground. The device is supported by the rubber pad 11, which can improve the stability of the device and prevent the device from moving even after the caster wheel 2 is locked. This improves the accuracy of the docking of the upper and lower modules. During assembly, the motor 13 is started to rotate the threaded rod 14. The threaded rod 14 allows the threaded cylinder 15 and the mounting plate 16 to rise. The guide rod 17 is connected to the mounting plate 16 and the vertical rod 18 to limit the position of the mounting plate 16. At this time, the support rod 19 and the support rod 20 drive the lower module on the surface to rise, realizing the assembly of the upper and lower modules.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An assembly aid for pole-mounted circuit breakers, comprising a mounting frame (1) and a protective shell (4), characterized in that: The mounting frame (1) is fixedly mounted with equidistant casters (2) on its bottom surface. Mounting blocks (3) are fixedly connected to both the front and back of the mounting frame (1). An adjusting screw (5) is rotatably connected to the inner wall of each mounting block (3). The outer surface of each adjusting screw (5) is rotatably connected to the inner wall of the protective shell (4). The outer surface of each mounting block (3) is fixedly connected to the inner wall of the protective shell (4). A synchronous belt (6) and two synchronous belts (9) are provided above the mounting frame (1). Two pulleys (7) mesh with the inner wall of one (6), and two pulleys (8) mesh with the inner wall of each synchronous belt (9). The inner walls of each pulley (7) and pulley (8) are fixedly connected to the outer surface of the corresponding adjusting screw (5). A sliding rod (10) is slidably connected to the inner wall of each mounting block (3). The inner wall of each sliding rod (10) is threadedly connected to the outer surface of the corresponding adjusting screw (5). A rubber pad (11) is fixedly connected to the bottom end of each sliding rod (10).

2. An assembly aid for a pole-mounted circuit breaker according to claim 1, characterized in that: The upper surface of the mounting bracket (1) is fixedly connected to a base plate (12), and a motor (13) is fixedly installed on the upper surface of the base plate (12).

3. The assembly auxiliary device for a pole-mounted circuit breaker according to claim 2, characterized in that: The output shaft of the motor (13) is fixedly connected to a threaded rod (14), and a threaded cylinder (15) is threadedly connected to the outer surface of the threaded rod (14).

4. The assembly auxiliary device for a pole-mounted circuit breaker according to claim 3, characterized in that: The outer surface of the threaded cylinder (15) is fixedly connected to a mounting plate (16), and the upper surface of the mounting plate (16) is fixedly connected to vertical rods (18) arranged at equal intervals.

5. The assembly auxiliary device for a pole-mounted circuit breaker according to claim 4, characterized in that: The upper surface of the base plate (12) is fixedly connected with guide rods (17) arranged at equal intervals. The outer surface of each guide rod (17) is slidably connected to the corresponding vertical rod (18) and the inner wall of the mounting plate (16).

6. The assembly auxiliary device for a pole-mounted circuit breaker according to claim 4, characterized in that: The mounting plate (16) is provided with two support rods (19) above it, and the bottom surface of each support rod (19) is fixedly connected to the top of the corresponding vertical rod (18).

7. The assembly auxiliary device for a pole-mounted circuit breaker according to claim 6, characterized in that: A second support rod (20) is fixedly connected between the two support rods one (19).

8. An assembly auxiliary device for a pole-mounted circuit breaker according to claim 7, characterized in that: Two bolts (21) are fixedly installed on the upper surface of the second support rod (20), and a trolley hanging plate (22) is fixedly connected to the right side of the second support rod (20).