Lateral quick-plug type circuit breaker module mounting structure of distribution box
By designing the support plate, U-shaped block, and transmission components, the problem of loose connection of the circuit breaker module under vibration and thermal expansion and contraction was solved, realizing the stable installation and convenient maintenance of the circuit breaker, and improving the stability of the circuit and installation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YICHUANGYUAN ELECTRIC CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional circuit breaker module installation structures are prone to loosening under the influence of vibration and thermal expansion and contraction, resulting in unstable circuit switching and inconvenient installation and maintenance.
The design employs a support plate, U-shaped block, drive assembly, and adjustment mechanism. Through the meshing transmission of worm gear and rack and pinion, the circuit breaker is securely installed, and the position of the support plate is adjusted through the transmission assembly, simplifying the installation and maintenance process.
It improves the stability and convenience of circuit breaker module installation, ensures normal circuit switching and protection functions, and simplifies the installation and position adjustment process.
Smart Images

Figure CN224191496U_ABST
Abstract
Description
Side-mounted quick-connect circuit breaker module installation structure in distribution box Technical Field
[0001] This utility model relates to the field of circuit breaker installation technology, and in particular to the side quick-connect circuit breaker module installation structure of the distribution box. Background Technology
[0002] A circuit breaker is a mechanical switching device that can connect, carry, and disconnect current under normal and abnormal circuit conditions. It can be used to distribute electrical energy, start asynchronous motors infrequently, protect power lines and motors, and automatically disconnect the circuit when a serious overload, short circuit, or undervoltage fault occurs, thus ensuring the operation of the circuit.
[0003] With the development of society and economy, the capacity and scale of power systems are constantly expanding, requiring more reliable and flexible circuit breakers to ensure power distribution and control. However, traditional integrated circuit breakers are inconvenient to install and maintain when facing complex large-scale power systems, making it difficult to meet the needs of frequent maintenance. At this time, a circuit breaker modular installation structure is needed. Currently, the circuit breaker module installation structure on the market mainly consists of a base, two side brackets, a positioning seat, and fixing screws. In use, the installation position of the circuit breaker is determined by the positioning seat and the base, and the two side brackets are fixed to the positioning seat using screws to secure the circuit breaker. However, in actual use, the installation of this side-mounted quick-connect circuit breaker module installation structure in the distribution box is quite cumbersome, and installation and maintenance are difficult. To solve these problems, existing technology uses an installation strip installed inside the distribution box and a snap-fit structure to connect the circuit breaker to the installation strip, improving installation and maintenance efficiency. However, during operation, the simple snap-fit structure of this side-mounted quick-connect circuit breaker module installation structure is affected by vibration and thermal expansion and contraction, which can cause the connection to loosen, thus affecting the normal switching and protection functions of the circuit. This reduces the practicality of the side-mounted quick-connect circuit breaker module installation structure and fails to meet the needs of users. Summary of the Invention
[0004] To overcome the above shortcomings, this utility model provides a side-mounted quick-connect circuit breaker module installation structure for distribution boxes, which aims to improve the problem that the connection of the existing circuit breaker module installation structure will become loose when subjected to vibration.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a side-mounted quick-connect circuit breaker module installation structure for a distribution box, including a box body, a support plate provided on the rear side of the box body, and multiple U-shaped blocks equidistantly arranged on the front side of the support plate. Each U-shaped block has a U-shaped groove inside, and a driving component is provided on the front side of the U-shaped groove. The driving component provides a fixed power for the side-mounted quick-connect circuit breaker module installation structure of the distribution box. Fixing components are provided on the upper and lower sides of the support plate. The fixing components are used to fix the U-shaped blocks on the front side of the support plate. An adjustment mechanism is provided on the inner side of the support plate. The adjustment mechanism is used to adjust the position of the support plate.
[0006] A circuit breaker is fixedly connected to the front side of each of the U-shaped blocks. An L-shaped block is slidably connected to the upper and lower sides of the inner rear end of the U-shaped groove. A rack is fixedly connected to the connecting side of two L-shaped blocks. A rotating rod is rotatably connected to the middle of the inner side of the U-shaped groove. A flat gear is fixedly connected to the rear side of the outer wall of the rotating rod. The two racks are respectively meshed with the left and right sides of the flat gear.
[0007] As a further description of the above technical solution:
[0008] Support blocks are fixedly connected to the left and right sides of the bottom of the support plate. Threaded rods are rotatably connected to the top of each of the two support blocks. Threaded sleeves are threaded to the left and right sides of each threaded rod. Multiple slots are equidistantly opened at the left and right ends of the rear side of the box. The far ends of the two threaded sleeves penetrate the support plate and engage with the corresponding slots. A transmission assembly is provided on the front side of the support plate.
[0009] As a further description of the above technical solution:
[0010] The drive assembly includes a worm gear, which is fixedly connected to the front side of the outer wall of the rotating rod. A connecting rod is rotatably connected to the top front side of the U-shaped block. The bottom end of the connecting rod passes through the U-shaped block and is fixedly connected to a worm. The worm gear meshes with the worm. A knob is fixedly connected to the top end of the connecting rod.
[0011] As a further description of the above technical solution:
[0012] The fixing component includes a groove, with two grooves respectively opened on the upper and lower sides of the support plate. The connecting end of each of the two L-shaped blocks passes through the U-shaped block and is fixedly connected with an anti-slip pad. The L-shaped block engages with the groove.
[0013] As a further description of the above technical solution:
[0014] The transmission assembly includes a transmission rod, which is rotatably connected to the middle of the front side of the support plate. The rear end of the transmission rod passes through the support plate and is fixedly connected to a driving bevel gear. A driven bevel gear is fixedly connected to the middle of the outer side of the threaded rod. The driving bevel gear and the driven bevel gear are meshed together. A handle is fixedly connected to the front end of the transmission rod.
[0015] As a further description of the above technical solution:
[0016] The front of the box is provided with a door, and hinges are fixedly connected to the upper and lower sides of the left rear end of the door. The door is rotatably connected to the box via the hinges.
[0017] As a further description of the above technical solution:
[0018] An observation window is provided in the middle of the left side of the box door, and a handle is fixedly connected to the front left wall of the box door.
[0019] As a further description of the above technical solution:
[0020] Mounting plates are fixedly connected to the bottom of the box on all four sides, and holes are opened on the top of each mounting plate.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the knob drives the worm gear to rotate via the connecting rod. Since the worm wheel meshes with the worm, the worm wheel can drive the spur gear to rotate via the rotating rod. Since the racks on both sides mesh with the spur gear on both sides, the racks on both sides will drive the L-shaped block to move towards the middle. When the L-shaped block moves, it will engage with the groove, thus fixing the circuit breaker firmly. The installation work is more convenient and stable, improving the practicality of the side quick-connect circuit breaker module installation structure of the distribution box and meeting the needs of users.
[0023] 2. In this utility model, the rotating handle drives the active bevel gear to rotate through the transmission rod. Since the driven bevel gear meshes with the active bevel gear, the driven bevel gear will drive the bidirectional threaded rod to rotate, and the threaded sleeves on both sides will move accordingly. This allows the support plate to be easily disassembled and its position adjusted, improving the convenience of using the side-mounted quick-connect circuit breaker module installation structure of the distribution box. Attached Figure Description
[0024] Figure 1 is a perspective view of the installation structure of the side-mounted quick-connect circuit breaker module in the distribution box proposed in this utility model;
[0025] Figure 2 is a side view of the installation structure of the side quick-connect circuit breaker module in the distribution box proposed in this utility model;
[0026] Figure 3 is a partial structural schematic diagram of the installation structure of the side quick-connect circuit breaker module in the distribution box proposed in this utility model;
[0027] Figure 4 is a cross-sectional view of the U-shaped block structure of the side-mounted quick-connect circuit breaker module installation structure of the distribution box proposed in this utility model.
[0028] Figure 5 is a partial structural cross-sectional view of the installation structure of the side-mounted quick-connect circuit breaker module in the distribution box proposed in this utility model.
[0029] Legend: 1. Housing; 2. Adjustment mechanism; 201. Support block; 202. Threaded rod; 203. Threaded sleeve; 204. Slot; 205. Driven bevel gear; 206. Transmission rod; 207. Driven bevel gear; 3. Support plate; 4. Circuit breaker; 5. U-shaped block; 6. U-shaped groove; 7. Rotating rod; 8. Flat gear; 9. L-shaped block; 10. Rack; 11. Groove; 12. Worm gear; 13. Connecting rod; 14. Worm; 15. Knob; 16. Anti-slip pad; 17. Handle; 18. Door; 19. Hinge; 20. Observation window; 21. Handle; 22. Mounting plate; 23. Hole. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Referring to Figures 1, 3, and 4, an embodiment of this utility model is provided: a side-mounted quick-connect circuit breaker module installation structure for a distribution box, including a box body 1. A support plate 3 is provided on the rear side of the box body 1. Multiple U-shaped blocks 5 are equidistantly arranged on the front side of the support plate 3. Each U-shaped block 5 has a U-shaped groove 6 inside. A driving component is provided on the front side of the U-shaped groove 6. The driving component provides a fixed power for the side-mounted quick-connect circuit breaker module installation structure of the distribution box. Fixing components are provided on the upper and lower sides of the support plate 3. The fixing components are used to fix the U-shaped blocks 5 on the front side of the support plate 3. An adjustment mechanism 2 is provided on the inner side of the support plate 3. The adjustment mechanism 2 is used to adjust the position of the support plate 3.
[0032] Circuit breakers 4 are fixedly connected to the front sides of multiple U-shaped blocks 5. L-shaped blocks 9 are slidably connected to the upper and lower sides of the inner rear end of the U-shaped groove 6. Racks 10 are fixedly connected to the connected side of two L-shaped blocks 9. The racks 10 drive the L-shaped blocks 9 to move. A rotating rod 7 is rotatably connected to the middle of the inner side of the U-shaped groove 6. A spur gear 8 is fixedly connected to the rear side of the outer wall of the rotating rod 7. Two racks 10 are respectively meshed with the left and right sides of the spur gear 8. When the spur gear 8 rotates, the racks 10 on both sides will move accordingly. The driving component includes a worm gear 12, which is fixedly connected to the front side of the outer wall of the rotating rod 7. The worm gear 12 can drive the rotating rod 7 to rotate. When the moving rod 7 rotates, a connecting rod 13 is rotatably connected to the top front side of the U-shaped block 5. The bottom end of the connecting rod 13 passes through the U-shaped block 5 and is fixedly connected to a worm gear 14. The worm wheel 12 is meshed with the worm gear 14. When the worm gear 14 rotates, the worm wheel 12 can drive the rotating rod 7 to rotate. A knob 15 is fixedly connected to the top end of the connecting rod 13. The fixing component includes a groove 11. Two grooves 11 are respectively opened on the upper and lower sides of the support plate 3. The connecting ends of the two L-shaped blocks 9 pass through the U-shaped block 5 and are fixedly connected to an anti-slip pad 16. The L-shaped blocks 9 and the grooves 11 engage with each other. The engagement of the L-shaped blocks 9 and the grooves 11 can fix the U-shaped block 5.
[0033] Specifically, when using this side-mounted quick-connect circuit breaker module installation structure, first place the U-shaped block 5 on the back of the circuit breaker 4 in front of the support plate 3. Then rotate the knob 15. When the knob 15 is rotated, it will drive the connecting rod 13 to rotate. The rotation of the connecting rod 13 is further transmitted to the worm gear 14, causing the worm gear 14 to start rotating as well. Since the worm wheel 12 meshes with the worm gear 14, the worm wheel 12 will rotate along with the rotation of the worm gear 14. The rotation of the worm wheel 12 can drive the spur gear 8 to start rotating through the rotating rod 7. When the spur gear 8 rotates, the racks 10 on both sides will move towards the middle and drive the L-shaped block 9 to move. The movement of the L-shaped block 9 will engage with the groove 11, which can firmly fix the circuit breaker 4. The installation work is more convenient and stable, which improves the practicality of the side-mounted quick-connect circuit breaker module installation structure and can meet the needs of users.
[0034] Referring to Figures 1, 3, and 5, support blocks 201 are fixedly connected to the left and right sides of the bottom inner end of the support plate 3. Threaded rods 202 are rotatably connected to the top of each support block 201. Threaded sleeves 203 are threadedly connected to the left and right sides of each threaded rod 202. When the threaded rod 202 rotates, the threaded sleeves 203 on both sides move accordingly. Multiple slots 204 are equidistantly provided on the left and right sides of the rear inner end of the housing 1. The farthest ends of two threaded sleeves 203 penetrate the support plate 3 and engage with the corresponding slots 204. The engagement of the threaded sleeves 203 with the slots 204 allows the support plate to be secured. 3. A transmission assembly is provided on the front side of the support plate 3. The transmission assembly includes a transmission rod 206. The transmission rod 206 is rotatably connected to the middle of the front side of the support plate 3. The rear end of the transmission rod 206 passes through the support plate 3 and is fixedly connected to a driving bevel gear 207. The transmission rod 206 will drive the driving bevel gear 207 to rotate. A driven bevel gear 205 is fixedly connected to the middle of the outer side of the threaded rod 202. The driving bevel gear 207 and the driven bevel gear 205 are meshed. When the driving bevel gear 207 rotates, the driven bevel gear 205 will rotate accordingly. A handle 17 is fixedly connected to the front end of the transmission rod 206.
[0035] Specifically, when the position of the circuit breaker 4 needs to be adjusted, the handle 17 is rotated, which drives the transmission rod 206 to rotate. During the rotation of the transmission rod 206, the driving bevel gear 207 will start to rotate. Since the driven bevel gear 205 meshes with the driving bevel gear 207, the driven bevel gear 205 will also rotate, driving the bidirectional threaded rod 202 to rotate. As the threaded rod 202 rotates, the threaded sleeves 203 on both sides will move along the threads of the threaded rod 202, so that the support plate 3 can be easily removed for position adjustment. After the position of the support plate 3 is adjusted, the handle 17 is rotated again, and the threaded sleeves 203 move to engage with the slots 204, thus fixing the support plate 3. This allows for convenient adjustment of the position of the circuit breaker 4, improving the ease of use of the side-mounted quick-connect circuit breaker module installation structure of the distribution box.
[0036] Referring to Figures 1 and 2, a door 18 is provided on the front side of the enclosure 1. Hinges 19 are fixedly connected to the upper and lower sides of the left rear end of the door 18. The door 18 is rotatably connected to the enclosure 1 through the hinges 19, and the door 18 can be easily opened through the hinges 19. An observation window 20 is provided in the middle of the left side of the door 18. The observation window 20 allows the staff to observe the internal operation of the side quick-connect circuit breaker module installation structure of the distribution box. A handle 21 is fixedly connected to the front side of the left wall of the door 18.
[0037] Specifically, opening the box door 18 allows for the installation and maintenance of the circuit breaker 4. Through the observation window 20, staff can easily observe the internal operation of the side-mounted quick-connect circuit breaker module installation structure of the distribution box. The handle 21 makes it easy for staff to open the box door 18.
[0038] Referring to Figures 1 and 2, mounting plates 22 are fixedly connected to the bottom of the box 1 around all four sides. Holes 23 are opened on the top of the multiple mounting plates 22. Bolts can be used to fix the side quick-connect circuit breaker module mounting structure of the distribution box in the holes 23.
[0039] Specifically, the mounting plate 22 can be fixed inside the hole 23 by using bolts, thereby securing the side quick-connect circuit breaker module mounting structure of the distribution box firmly.
[0040] Working principle: When using the side-mounted quick-connect circuit breaker module installation structure of this distribution box, first place the U-shaped block 5 on the back of the circuit breaker 4 in front of the support plate 3, then rotate the knob 15. The rotation of the knob 15 will drive the connecting rod 13 to rotate, and the connecting rod 13 will drive the worm gear 14 to rotate. Since the worm wheel 12 meshes with the worm gear 14, the worm wheel 12 can drive the spur gear 8 to rotate through the rotating rod 7. Since the racks 10 on both sides mesh with the spur gear 8 on both sides, when the spur gear 8 rotates, the racks 10 on both sides will drive the L-shaped block 9 to move towards the middle. When the L-shaped block 9 moves, it will engage with the groove 11, which can fix the circuit breaker 4 firmly, making the installation work more convenient and stable.
[0041] Furthermore, when the position of the circuit breaker 4 needs to be adjusted, the handle 17 is rotated, which drives the transmission rod 206 to rotate. The transmission rod 206 then drives the driving bevel gear 207 to rotate. Since the driven bevel gear 205 meshes with the driving bevel gear 207, the driven bevel gear 205 will drive the bidirectional threaded rod 202 to rotate. At this time, the threaded sleeves 203 on both sides will move accordingly, making it easy to disassemble the support plate 3 and adjust its position. After the adjustment is completed, rotating the handle 17 drives the threaded sleeves 203 to move and engage with the slot 204, which can fix the support plate 3 and make it easy to adjust the position of the circuit breaker 4.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A side-mounted quick-connect circuit breaker module installation structure for a distribution box, comprising a box body (1), characterized in that: A support plate (3) is provided on the rear side of the inner side of the enclosure (1). Multiple U-shaped blocks (5) are equidistantly arranged on the front side of the support plate (3). Each U-shaped block (5) has a U-shaped groove (6) inside. A drive assembly is provided on the front side of the U-shaped groove (6). The drive assembly provides a fixed power for the installation structure of the side quick-connect circuit breaker module of the distribution box. Fixing assemblies are provided on the upper and lower sides of the support plate (3). The fixing assemblies are used to fix the U-shaped blocks (5) on the front side of the support plate (3). An adjustment mechanism is provided on the inner side of the support plate (3). The adjustment mechanism (2) is used to conveniently adjust the position of the support plate (3); the front sides of the multiple U-shaped blocks (5) are fixedly connected to circuit breakers (4); the upper and lower sides of the inner rear end of the U-shaped groove (6) are slidably connected to L-shaped blocks (9); the connected side of the two L-shaped blocks (9) is fixedly connected to racks (10); the middle of the inner side of the U-shaped groove (6) is rotatably connected to a rotating rod (7); the rear side of the outer wall of the rotating rod (7) is fixedly connected to a spur gear (8); the two racks (10) are respectively meshed with the left and right sides of the spur gear (8).
2. The side-mounted quick-connect circuit breaker module installation structure for the distribution box according to claim 1, characterized in that: The support plate (3) has a support block (201) fixedly connected to the left and right sides of the bottom inside. The top of the two support blocks (201) is rotatably connected to a threaded rod (202). The left and right sides of the threaded rod (202) are threadedly connected to threaded sleeves (203). The left and right sides of the rear inside the box (1) are provided with multiple slots (204) at equal intervals. The two threaded sleeves (203) have their opposite ends passing through the support plate (3) and engaging with the corresponding slots (204). The front side of the support plate (3) is provided with a transmission assembly.
3. The side-mounted quick-connect circuit breaker module installation structure for the distribution box according to claim 1, characterized in that: The drive assembly includes a worm gear (12), which is fixedly connected to the front side of the outer wall of the rotating rod (7). A connecting rod (13) is rotatably connected to the top front side of the U-shaped block (5). The bottom end of the connecting rod (13) passes through the U-shaped block (5) and is fixedly connected to a worm (14). The worm gear (12) meshes with the worm (14). A knob (15) is fixedly connected to the top end of the connecting rod (13).
4. The side-mounted quick-connect circuit breaker module installation structure for the distribution box according to claim 1, characterized in that: The fixing component includes a groove (11), two grooves (11) are respectively opened on the upper and lower sides of the support plate (3), and the connecting ends of the two L-shaped blocks (9) pass through the U-shaped block (5) and are fixedly connected with anti-slip pads (16). The L-shaped blocks (9) are engaged with the grooves (11).
5. The side-mounted quick-connect circuit breaker module installation structure for a distribution box according to claim 2, characterized in that: The transmission assembly includes a transmission rod (206), which is rotatably connected to the front middle of the support plate (3). The rear end of the transmission rod (206) passes through the support plate (3) and is fixedly connected to a driving bevel gear (207). The outer middle of the threaded rod (202) is fixedly connected to a driven bevel gear (205). The driving bevel gear (207) and the driven bevel gear (205) are meshed. The front end of the transmission rod (206) is fixedly connected to a handle (17).
6. The side-mounted quick-connect circuit breaker module installation structure for a distribution box according to claim 1, characterized in that: The front side of the box body (1) is provided with a box door (18), and the upper and lower sides of the left rear end of the box door (18) are fixedly connected with hinges (19). The box door (18) is rotatably connected to the box body (1) through the hinges (19).
7. The side-mounted quick-connect circuit breaker module installation structure for a distribution box according to claim 6, characterized in that: An observation window (20) is provided in the middle of the left side of the box door (18), and a handle (21) is fixedly connected to the front side of the left wall of the box door (18).
8. The side-mounted quick-connect circuit breaker module installation structure for a distribution box according to claim 1, characterized in that: The bottom of the box (1) is fixedly connected with mounting plates (22) on all four sides, and the top of each mounting plate (22) is provided with holes (23).