Reaming device for power distribution cabinet
By introducing components such as a sliding worktable and an electric push rod into the hole-expanding device of the power distribution cabinet, and combining them with the use of a laser positioner, the problems of shaking and offset in the hole-expanding device are solved, and the stability and accuracy of hole expansion are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN QIANGSHENG CABINET CO LTD
- Filing Date
- 2025-02-25
- Publication Date
- 2026-04-14
AI Technical Summary
Existing distribution cabinet hole enlargement devices lack a structure to drive the component to be enlarged to move smoothly, resulting in shaking or displacement during the enlargement process, affecting stability and accuracy.
The hole-reaming device employs components including a base, a sliding worktable, a first electric push rod, a DC motor, and a laser positioner. The electric push rod and DC motor provide feed force, while the laser positioner assists in precise positioning, ensuring the stability and accuracy of hole reaming.
It improves the stability and accuracy of hole enlargement, avoids shaking or displacement of the part to be enlarged during the enlargement process, and ensures efficient hole enlargement.
Smart Images

Figure CN224123718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution cabinet technology, and specifically to a hole-expanding device for power distribution cabinets. Background Technology
[0002] Distribution cabinets are one of the important electrical devices in a power system. They control and distribute power to electrical equipment and protect against overload, short circuit, and leakage current in the lines. During the installation of distribution cabinets, it is often necessary to introduce wire conduits into the cabinet. If the original hole positions or diameters of the distribution cabinet do not match the diameter of the conduits, it is necessary to use a hole enlarger to enlarge the original hole positions or diameters of the distribution cabinet. This ensures that the conduits can be inserted smoothly and flat into the distribution cabinet, avoiding problems such as conduit bending, deformation, or difficulty in insertion caused by the hole diameter being too small. At the same time, by enlarging the hole, the position and angle of the conduits entering the cabinet can be adjusted, making the distribution of wires in the distribution cabinet more reasonable, avoiding problems such as wire crossing, mess, or excessive bending, thereby improving the quality and efficiency of wiring.
[0003] However, existing hole-expanding devices for distribution cabinets have simple structures and lack a structure to drive the component to be expanded to move smoothly. The component to be expanded may shake or shift during the hole-expanding process, resulting in poor stability and accuracy of hole expansion. Therefore, we propose a hole-expanding device for distribution cabinets. Utility Model Content
[0004] To address the problems in the prior art, this utility model provides a hole-expanding device for power distribution cabinets. This new hole-expanding device has a structure that drives the component to be expanded to move smoothly, preventing the component to be expanded from shaking or shifting during the hole-expanding process, thereby effectively improving the stability and accuracy of hole expansion.
[0005] The technical solution adopted by this utility model to solve its technical problem is a hole-expanding device for power distribution cabinet, including a base, a sliding worktable, and a first electric push rod. The sliding worktable is provided on the top of the base, and the first electric push rod is installed at one end of the base through a mounting seat. The output end of the first electric push rod is connected to a first connecting rod, and a fixing plate is provided at one end of the first connecting rod. The fixing plate is connected to one end of the sliding worktable by screws.
[0006] A T-shaped mounting plate is provided on one side of the base. A second electric push rod is fixed to one end of the top of the T-shaped mounting plate. A DC motor is provided at the lower end of the T-shaped mounting plate. A drill bit is connected to the output end of the DC motor. A laser positioner is installed on one side of the lower end of the T-shaped mounting plate by bolts. Small-diameter holes and large-diameter holes are respectively opened at both ends inside the power distribution cabinet plate. Sliding grooves are opened on both sides of the top of the base.
[0007] By adopting the above technical solution, the new hole-expanding device has a structure that drives the component to be expanded to move smoothly, preventing the component to be expanded from shaking or shifting during the hole-expanding process, thereby effectively improving the stability and accuracy of hole expansion.
[0008] Specifically, a first limit block and a second limit block are respectively provided at both ends of the top of the sliding worktable. A power distribution cabinet plate is provided on the top of the sliding worktable and at the first and second limit blocks. A knob bolt is provided on the outer side of the first limit block through bolt holes. A circular clamping plate is provided on the inner side of the first limit block. The end of the knob bolt is connected to the circular clamping plate.
[0009] By adopting the above technical solution, the No. 2 limit block can limit one end of the power distribution cabinet plate, while the No. 1 limit block plays the role of supporting the knob bolt and the circular clamping plate.
[0010] Specifically, a second connecting rod is provided between the DC motor and the second electric push rod. The top of the second connecting rod is connected to the output end of the second electric push rod, and the bottom of the second connecting rod is connected to the top of the DC motor.
[0011] Specifically, a programmable logic controller (PLC) is connected to one side of the first electric push rod, and the current output terminal of the PLC is electrically connected to the current input terminal of the first electric push rod via a wire.
[0012] Specifically, a second programmable logic controller is connected to one side of the second electric push rod, and the current output terminal of the second programmable logic controller is electrically connected to the current input terminal of the second electric push rod through a wire.
[0013] Specifically, the top of the sliding worktable is provided with pre-reserved openings evenly spaced.
[0014] By adopting the above technical solution, the reserved opening facilitates the movement of the drill bit, allowing it to pass smoothly through the power distribution cabinet plate without obstructing its movement.
[0015] The beneficial effects of this utility model are:
[0016] (1) The hole-expanding device for power distribution cabinet described in this utility model is a DC motor that can drive the drill bit to rotate, and the second electric push rod can provide feed force to the first limit block and the drill bit through the second connecting rod, thereby enabling the hole-expanding operation of the small diameter hole on the power distribution cabinet plate, and thus processing a large diameter hole that meets the assembly requirements.
[0017] (2) The hole-expanding device for power distribution cabinet described in this utility model can drive the sliding worktable to slide along the track of the slide groove through the No. 1 electric push rod, making the movement of the sliding worktable more stable.
[0018] (3) The hole-expanding device for power distribution cabinet described in this utility model has a laser positioner that can play an auxiliary role and can be used to accurately determine the hole-expanding position, which helps to improve the accuracy of hole expansion. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the base structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the driving structure of this utility model;
[0023] Figure 4 This is a front view of the present invention.
[0024] In the diagram: 1. Base; 2. Sliding worktable; 3. Electric push rod No. 1; 4. Connecting rod No. 1; 5. T-shaped mounting plate; 6. Electric push rod No. 2; 7. DC motor; 8. Limit block No. 1; 9. Drill bit; 10. Distribution cabinet plate; 11. Laser positioner; 12. Programmable logic controller No. 1; 13. Programmable logic controller No. 2; 14. Fixing plate; 15. Small diameter hole; 16. Large diameter hole; 17. Reserved opening; 18. Slide groove; 19. Connecting rod No. 2; 20. Limit block No. 2; 21. Knob bolt; 22. Circular clamping plate. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] To improve the stability and accuracy of hole enlargement, such as Figure 1-4 As shown, the present invention provides a hole-expanding device for a power distribution cabinet, comprising a base 1, a sliding worktable 2, and a first electric push rod 3. The sliding worktable 2 is provided on the top of the base 1, and the first electric push rod 3 is mounted on one end of the base 1 via a mounting base. The output end of the first electric push rod 3 is connected to a first connecting rod 4, and a fixing plate 14 is provided on one end of the first connecting rod 4. The fixing plate 14 is connected to one end of the sliding worktable 2 by screws.
[0027] A T-shaped mounting plate 5 is provided on one side of the base 1. A second electric push rod 6 is fixed to one end of the top of the T-shaped mounting plate 5. A DC motor 7 is provided at the lower end of the T-shaped mounting plate 5. A drill bit 9 is connected to the output end of the DC motor 7. A laser positioner 11 is installed on one side of the lower end of the T-shaped mounting plate 5 by bolts. Small diameter holes 15 and large diameter holes 16 are respectively opened at both ends inside the power distribution cabinet plate 10. Sliding grooves 18 are opened on both sides of the top of the base 1.
[0028] When in use, the DC motor 7 can drive the drill bit 9 to rotate, and the second electric push rod 6 can provide feed force to the first limit block 8 and the drill bit 9 through the second connecting rod 19, thereby enabling the small diameter hole 15 on the power distribution cabinet plate 10 to be enlarged, and thus processing the large diameter hole 16 that meets the assembly requirements.
[0029] The first electric push rod 3 can drive the sliding worktable 2 to slide along the track of the slide groove 18 through the first connecting rod 4, making the movement of the sliding worktable 2 more stable.
[0030] The laser positioner 11 can play an auxiliary role in accurately determining the hole enlargement position, which helps to improve the accuracy of hole enlargement.
[0031] For example, such as Figure 1 , Figure 3 , Figure 4 As shown, a first limiting block 8 and a second limiting block 20 are respectively provided at both ends of the top of the sliding worktable 2. A power distribution cabinet plate 10 is provided on the top of the sliding worktable 2 and located at the first limiting block 8 and the second limiting block 20. A knob bolt 21 is provided on the outer side of the first limiting block 8 through a bolt hole. A circular pressing plate 22 is provided on the inner side of the first limiting block 8. The end of the knob bolt 21 is connected to the circular pressing plate 22.
[0032] In use, the second limit block 20 can limit one end of the distribution cabinet plate 10, while the first limit block 8 serves to support the knob bolt 21 and the circular clamping plate 22.
[0033] For example, such as Figure 4 As shown, a second connecting rod 19 is provided between the DC motor 7 and the second electric push rod 6. The top of the second connecting rod 19 is connected to the output end of the second electric push rod 6, and the bottom of the second connecting rod 19 is connected to the top of the DC motor 7.
[0034] In use, the second electric push rod 6 can provide feed force to the DC motor 7 and the drill bit 9 through the second connecting rod 19.
[0035] For example, such as Figure 1 , Figure 4As shown, a programmable logic controller 12 is connected to one side of the first electric push rod 3. The current output terminal of the first programmable logic controller 12 is electrically connected to the current input terminal of the first electric push rod 3 through a wire.
[0036] In use, the No. 1 programmable logic controller 12 can control parameters such as the running angle and speed of the No. 1 electric push rod 3.
[0037] For example, such as Figure 1 As shown, a second programmable logic controller 13 is connected to one side of the second electric push rod 6. The current output terminal of the second programmable logic controller 13 is electrically connected to the current input terminal of the second electric push rod 6 through a wire.
[0038] In use, the second programmable logic controller 13 can control parameters such as the running angle and speed of the second electric push rod 6.
[0039] For example, such as Figure 2 As shown, the top of the sliding worktable 2 is evenly provided with reserved openings 17.
[0040] When in use, the reserved opening 17 facilitates the movement of the drill bit 9, allowing the drill bit 9 to pass smoothly through the power distribution cabinet plate 10 without obstructing its movement.
[0041] When using this utility model, the operator places the distribution cabinet plate 10 to be enlarged on the top of the sliding workbench 2, and aligns one end of the distribution cabinet plate 10 with the second limiting block 20. The operator then turns the knob bolt 21 clockwise to drive the circular clamping plate 22 to move towards the side of the distribution cabinet plate 10, so that the circular clamping plate 22 gradually aligns with the side of the distribution cabinet plate 10, thereby clamping the distribution cabinet plate 10 at both ends.
[0042] Furthermore, the drill bit 9 is located at the upper end of the distribution cabinet plate 10. The distribution cabinet plate 10 has a small diameter hole 15, which is the original hole position or diameter. The DC motor 7 can drive the drill bit 9 to rotate, and the second electric push rod 6 can provide feed force to the first limit block 8 and the drill bit 9 through the second connecting rod 19, thereby expanding the small diameter hole 15 on the distribution cabinet plate 10, and thus processing a large diameter hole 16 that meets the assembly requirements.
[0043] Furthermore, the first electric push rod 3 can drive the sliding worktable 2 to slide through the first connecting rod 4. During the sliding process of the sliding worktable 2, the corners of the bottom of the sliding worktable 2 are all located inside the slide groove 18, so that the sliding worktable 2 can slide along the track of the slide groove 18, making the movement more stable.
[0044] Furthermore, the laser positioner 11 can play an auxiliary role in accurately determining the hole enlargement position, which helps to improve the accuracy of hole enlargement.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A reaming device for an electrical distribution cabinet, characterized in that, Includes a base (1), a sliding worktable (2), a first electric push rod (3), and a power distribution cabinet plate (10). The top of the base (1) is provided with a sliding worktable (2). One end of the base (1) is equipped with a first electric push rod (3) via a mounting seat. The output end of the first electric push rod (3) is connected to a first connecting rod (4). One end of the first connecting rod (4) is provided with a fixing plate (14). The fixing plate (14) is connected to one end of the sliding worktable (2) by screws. A T-shaped mounting plate (5) is provided on one side of the base (1). A second electric push rod (6) is fixed at one end of the top of the T-shaped mounting plate (5). A DC motor (7) is provided at the lower end of the T-shaped mounting plate (5). A drill bit (9) is connected to the output end of the DC motor (7). A laser positioner (11) is installed on one side of the lower end of the T-shaped mounting plate (5) by bolts. Small diameter holes (15) and large diameter holes (16) are respectively opened at both ends inside the power distribution cabinet plate (10). Slide grooves (18) are opened on both sides of the top of the base (1).
2. The hole-expanding device for a power distribution cabinet according to claim 1, characterized in that, The sliding workbench (2) has a first limit block (8) and a second limit block (20) at its two ends. The top of the sliding workbench (2) and the first limit block (8) and the second limit block (20) are provided with a power distribution cabinet plate (10). The outer side of the first limit block (8) is provided with a knob bolt (21) through a bolt hole. The inner side of the first limit block (8) is provided with a circular clamping plate (22). The end of the knob bolt (21) is connected to the circular clamping plate (22).
3. The hole-expanding device for a power distribution cabinet according to claim 1, characterized in that, A second connecting rod (19) is provided between the DC motor (7) and the second electric push rod (6). The top of the second connecting rod (19) is connected to the output end of the second electric push rod (6), and the bottom of the second connecting rod (19) is connected to the top of the DC motor (7).
4. The hole-expanding device for a power distribution cabinet according to claim 1, characterized in that, One side of the first electric push rod (3) is connected to a first programmable logic controller (12), and the current output terminal of the first programmable logic controller (12) is electrically connected to the current input terminal of the first electric push rod (3) through a wire.
5. A hole-expanding device for a power distribution cabinet according to claim 1, characterized in that, A second programmable logic controller (13) is connected to one side of the second electric push rod (6). The current output terminal of the second programmable logic controller (13) is electrically connected to the current input terminal of the second electric push rod (6) through a wire.
6. The hole-expanding device for a power distribution cabinet according to claim 1, characterized in that, The top of the sliding worktable (2) is evenly provided with reserved openings (17).