Electric box pre-embedded fixing device
By using a miniature air pump and steel brush design with a pre-embedded fixing device in the electrical box, the safety risks during the cleaning of debris from the drill bit are resolved, and the cleaning of the drill bit is carried out safely and efficiently.
Patent Information
- Application Number
- CN202423024320.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
During the pre-embedding of the electrical box, debris adheres to the drill bit during drilling, causing a decrease in the sharpness of the cutting edge. Manual cleaning poses a safety risk.
Design an electrical box pre-embedded fixing device, which includes a miniature air pump, a connecting ring and a steel brush. The airflow and the steel brush work together to clean impurities from the drill bit, avoiding direct manual contact with the drill bit.
This improved the safety of the drill bit cleaning process, reduced the risk of injury to operators, and increased cleaning efficiency.
Smart Images

Figure CN223493583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical box pre-embedding technology, and in particular to an electrical box pre-embedding fixing device. Background Technology
[0002] Electrical boxes in electrical installation projects contain various electrical equipment and wiring, and their normal operation is crucial to the safety of the entire electrical system. Pre-embedded fixing ensures the stability of the electrical box after installation, preventing it from tipping over due to accidental collisions, vibrations, or other external forces. This pre-embedding process requires the use of expansion bolts, necessitating the drilling of appropriate holes in the wall.
[0003] During the drilling process, the drill bit will accumulate a lot of dust, concrete fragments, and other debris. When the drill bit's cutting edge is covered by debris, the contact area between the cutting edge and the material being drilled changes. To maintain the sharpness of the drill bit's cutting edge, the user needs to clean the outside of the drill bit in a timely manner. However, when cleaning manually, the user's hands need to touch the drill bit. If the operation is not done properly, the drill switch may be accidentally activated, causing an accidental start and resulting in personal injury. To address this issue, we propose a pre-embedded fixing device in the electrical box. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pre-embedded fixing device for electrical boxes.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electrical box pre-embedded fixing device includes an electric drill, a drill bit connected to the side of the electric drill, a connecting plate connected to the upper side of the electric drill, a cylinder connected to the side of the connecting plate, a connecting frame provided on the side of the cylinder, a connecting ring connected to the lower side of the connecting frame, a miniature air pump installed inside the connecting frame, an air outlet pipe connected to the end of the miniature air pump, an air supply ring opened inside the connecting ring, and air outlet holes equally spaced on the inner side of the air supply ring.
[0007] Preferably, each of the air outlets is equipped with an air supply pipe, and the air supply pipe is designed with an inclined structure.
[0008] Preferably, a connecting sleeve is fitted onto the end of the cylinder, and the side of the connecting sleeve is connected to the connecting frame. The side of the connecting sleeve is connected to the cylinder by bolts.
[0009] Preferably, the inner side of the connecting ring is provided with a mounting ring, and the inner wall of the mounting ring is evenly distributed with steel brushes.
[0010] Preferably, the outer wall of the mounting ring is provided with an external thread, and the inner wall of the connecting ring is provided with an internal thread groove that is adapted to the mounting ring.
[0011] Preferably, the right side of the mounting ring extends to the outside of the connecting ring, and rectangular pieces are uniformly connected to the outer side of the mounting ring.
[0012] Preferably, the connecting frame is configured as a U-shaped structure, and the inner dimension of the connecting frame is larger than the outer dimension of the micro air pump.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This device is equipped with a miniature air pump and a connecting ring. When the drill bit needs to be cleaned, the operator only needs to start the cylinder and the miniature air pump to make the airflow spray out from the inside of the connecting ring to blow away the impurities on the outside of the drill bit. The entire cleaning process does not require direct contact with the drill bit, thereby reducing the risk of accidental injury to the operator during the cleaning process.
[0015] 2. This device, equipped with an installation ring and a steel brush, can scrape off stubborn debris adhering to the drill bit during the cleaning process by working together with the installation ring and the steel brush. This effectively reduces the difficulty of blowing away debris. The threaded engagement of the installation ring and the connecting ring also makes it easy for workers to remove the steel brush for maintenance and replacement in a timely manner. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of an electrical box pre-embedded fixing device proposed in this utility model;
[0017] Figure 2 for Figure 1 A three-dimensional cross-sectional schematic diagram of the drill bit and connecting ring structure;
[0018] Figure 3 for Figure 1 A three-dimensional cross-sectional view of the connecting frame and the micro air pump structure in the diagram;
[0019] Figure 4 for Figure 1 A three-dimensional cross-sectional schematic diagram of the air supply ring and air supply duct structure.
[0020] In the diagram: 1. Electric drill; 2. Drill bit; 3. Connecting plate; 4. Cylinder; 5. Connecting frame; 6. Miniature air pump; 7. Air outlet pipe; 8. Connecting ring; 9. Air supply ring; 10. Air supply pipe; 11. Mounting ring; 12. Steel brush; 13. Rectangular piece; 14. Connecting sleeve rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-4 An electrical box pre-embedded fixing device includes an electric drill 1, a drill bit 2 connected to the side of the electric drill 1, the connection method and drilling principle of the electric drill 1 and the drill bit 2 are existing technologies and will not be described in detail here. A connecting plate 3 is connected to the upper side of the electric drill 1, and a cylinder 4 is connected to the side of the connecting plate 3. A connecting frame 5 is provided on the side of the cylinder 4, and a connecting ring 8 is connected to the lower side of the connecting frame 5. A micro air pump 6 is installed inside the connecting frame 5, and an air outlet pipe 7 is connected to the end of the micro air pump 6. An air supply ring 9 is opened inside the connecting ring 8, and air outlet holes are opened at equal intervals on the inner side of the air supply ring 9. The extension and retraction principle of the cylinder 4, the blowing principle of the micro air pump 6, and the opening and closing principle are also existing technologies and will not be described in detail here. By driving the cylinder 4, the lateral guidance requirement of the connecting ring 8 can be met, so as to achieve comprehensive cleaning of the side of the drill bit 2.
[0023] Furthermore, refer to Figure 3 It can be seen that air supply pipes 10 are inserted inside the air outlets, and the air supply pipes 10 are set with an inclined structure. Through multiple sets of inclined air supply pipes 10, the air delivery range can be improved, thereby ensuring the cleaning effect on the drill bit 2.
[0024] Furthermore, refer to Figure 2 It can be seen that the end of the cylinder 4 is fitted with a connecting sleeve rod 14, and the side of the connecting sleeve rod 14 is connected to the connecting frame 5. The side of the connecting sleeve rod 14 is connected to the cylinder 4 by bolts. Through the cooperation of the connecting sleeve rod 14 and the bolts, it is convenient for the staff to remove the connecting frame 5 from the side of the cylinder 4 for inspection and maintenance.
[0025] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the inner side of the connecting ring 8 is provided with an installation ring 11, and the inner wall of the installation ring 11 is evenly distributed with steel brushes 12. By setting multiple sets of steel brushes 12, stubborn debris on the outside of the drill bit 2 can be scraped off, thereby ensuring the cleaning effect of the drill bit 2.
[0026] Furthermore, refer to Figure 3It can be seen that the outer wall of the mounting ring 11 is provided with external threads, and the inner wall of the connecting ring 8 is provided with an internal thread groove that matches the mounting ring 11. In use, the extension length of the cylinder 4 is greater than the lateral length of the drill bit 2, so that the connecting ring 8 can be pushed to the left side of the drill bit 2. Through the threaded engagement of the connecting ring 8 and the mounting ring 11, it is easy for the operator to remove the mounting ring 11 from the inside of the connecting ring 8 and take it out from the gap between the connecting ring 8 and the left side of the drill bit 2.
[0027] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the right side of the mounting ring 11 extends to the outside of the connecting ring 8, and rectangular pieces 13 are evenly connected to the outside of the mounting ring 11. Since the right side of the mounting ring 11 extends to the outside of the connecting ring 8, it is convenient for the staff to rotate the mounting ring 11. With the setting of multiple sets of rectangular pieces 13, it is even more convenient for the staff to rotate the mounting ring 11 out from the inside of the connecting ring 8.
[0028] Furthermore, refer to Figure 2 It can be seen that the connecting frame 5 is set as a U-shaped structure, and the inner dimension of the connecting frame 5 is larger than the outer dimension of the micro air pump 6. By setting the larger U-shaped connecting frame 5, the micro air pump 6 can be surrounded and protected, thereby effectively preventing foreign objects from accidentally colliding with the micro air pump 6 and ensuring the service life of the micro air pump 6.
[0029] Working Principle: When using this utility model, the operator first holds the electric drill 1, then presses the switch button on the electric drill 1, and then aligns the drill bit 2 with the drilling position to drill a hole in the wall. This allows the operator to use expansion screws to pre-embed the electrical box in the wall. During the drilling process, a lot of debris will adhere to the outside of the drill bit 2. To ensure the normal use of the drill bit 2, the operator can start the micro air pump 6, which will deliver the generated airflow through the air outlet 7 to the connecting ring 8 and spray it out from each set of air supply pipes 10. Then, by starting the cylinder 4, the connecting ring 8 can be moved laterally, thereby blowing away the debris attached to the drill bit 2. During the lateral movement of the connecting ring 8, some debris that is difficult to blow away will be scraped off by the steel brush 12, thus effectively ensuring the cleaning effect of the drill bit 2. After cleaning, the cylinder 4 can drive the connecting ring 8 to retract, thereby realizing the storage of the connecting ring 8 and facilitating the normal operation of the drill bit 2. The above is the complete working principle of this utility model.
[0030] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.
[0031] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0032] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, 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 series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. An electrical box pre-embedded fixing device, comprising an electric drill (1), characterized in that, The drill bit (2) is connected to the side of the electric drill (1), the upper side of the electric drill (1) is connected to the connecting plate (3), and the side of the connecting plate (3) is connected to the cylinder (4). The side of the cylinder (4) is provided with a connecting frame (5), and the lower side of the connecting frame (5) is connected to a connecting ring (8). A micro air pump (6) is installed inside the connecting frame (5), and the end of the micro air pump (6) is connected to an air outlet pipe (7). An air supply ring (9) is opened inside the connecting ring (8), and air outlet holes are opened at equal intervals on the inner side of the air supply ring (9).
2. The electrical box pre-embedded fixing device according to claim 1, characterized in that, Each of the air outlets is fitted with an air supply pipe (10), and the air supply pipe (10) is set as an inclined structure.
3. The electrical box pre-embedded fixing device according to claim 1, characterized in that, The cylinder (4) is fitted with a connecting sleeve (14) at its end, and the side of the connecting sleeve (14) is connected to the connecting frame (5). The side of the connecting sleeve (14) is connected to the cylinder (4) by bolts.
4. The electrical box pre-embedded fixing device according to claim 1, characterized in that, The inner side of the connecting ring (8) is provided with an installation ring (11), and steel brushes (12) are evenly distributed on the inner wall of the installation ring (11).
5. The electrical box pre-embedded fixing device according to claim 4, characterized in that, The outer wall of the mounting ring (11) is provided with an external thread, and the inner wall of the connecting ring (8) is provided with an internal thread groove that is compatible with the mounting ring (11).
6. The electrical box pre-embedded fixing device according to claim 4, characterized in that, The right side of the mounting ring (11) extends to the outside of the connecting ring (8), and rectangular pieces (13) are uniformly connected to the outside of the mounting ring (11).
7. The electrical box pre-embedded fixing device according to claim 1, characterized in that, The connecting frame (5) is configured as a U-shaped structure, and the inner dimension of the connecting frame (5) is larger than the outer dimension of the micro air pump (6).