Building outer wall punching device for constructional engineering
By adding an airbag at the connection between the dust cover and the drilling machine, the problem of the dust cover not fitting properly during angled drilling was solved, achieving effective dust protection and collection during angled drilling and improving the applicability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAREN CONSTR GROUP
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-15
AI Technical Summary
The existing dust cover cannot fit snugly against the wall when the drilling machine is drilling at an angle, resulting in poor dust protection and its applicability needs to be improved.
An airbag is added at the connection between the dust cover and the drilling machine. The deformation capability of the airbag allows the dust cover to remain in contact with the wall when drilling at an angle. Through the cooperation of the ring structure and the spring, the dust cover can stably collect dust during the drilling process.
It achieves effective dust protection and collection during inclined drilling, improves the practicality of the drilling device, and is suitable for more drilling operation environments.
Smart Images

Figure CN224239994U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a drilling device for building exterior walls used in building engineering. Background Technology
[0002] In the field of construction engineering, drilling holes in exterior walls is a common construction operation used to install windows, doors, ventilation equipment, etc.
[0003] Portable drilling machines are common drilling tools suitable for most drilling operations. However, drilling into walls generates a lot of dust, which not only pollutes the working environment but also causes discomfort to workers. Some existing drilling machines are equipped with movable dust covers near the drill bit to block dust. However, in actual use, the dust cover can only move parallel to the drill bit. When the user needs to drill at an angle, the dust cover cannot fit well against the wall, thus failing to provide effective dust protection. Its applicability needs to be improved. Utility Model Content
[0004] This utility model aims to provide a drilling device for building exterior walls in construction engineering to solve the problems mentioned in the background art. The solution has a simple structure and reasonable design. It innovatively adds an airbag to the connection between the traditional dust cover and the drilling machine. Through the deformation capability of the airbag itself, the dust cover can be tilted at an appropriate angle while maintaining connection and normal operation with the drilling machine. This allows the drilling machine to drill at an angle and ensures the protection and collection of dust during the drilling process, effectively improving the practicality of the device and enabling it to be used in more drilling operation environments.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A drilling device for building exterior walls in construction engineering includes a drilling machine body and a base. A limiting block is connected to the outer end of the drilling machine body near the drill bit. The base is sleeved on the outer end of the drilling machine body and slidably connected to the drilling machine body. Multiple springs are connected between the base and the limiting block. An airbag is connected to the end of the base away from the limiting block. A connecting block is connected to the end of the airbag away from the base. A dust cover is detachably connected to one end of the connecting block. The dust cover surrounds the outside of the drill bit.
[0007] Preferably, the base, airbag, and connecting block are all configured as annular structures and coaxially arranged.
[0008] Preferably, the base is connected to a plurality of limiting posts at one end near the limiting block, one end of each limiting post passes through the limiting block, and the spring is sleeved on the outer end of the limiting post.
[0009] Preferably, the dust cover is made of a transparent material.
[0010] Preferably, the dust cover has a trapezoidal cross-sectional shape, and the inner diameter of the dust cover gradually increases along the direction from the drill bit to the main body of the drilling machine.
[0011] Preferably, a rubber gasket is connected to the end of the dust cover away from the main body of the drilling machine, and the rubber gasket is arranged around the dust cover.
[0012] The beneficial effects of this technical solution compared to existing technologies are as follows:
[0013] This solution features a simple structure and reasonable design. Innovatively, an airbag is added to the connection between the traditional dust cover and the drilling machine. Through the deformation capability of the airbag itself, the dust cover can be tilted at an appropriate angle while maintaining connection and normal operation with the drilling machine. This allows the drilling machine to perform angled drilling and ensures dust protection and collection during the drilling process, effectively improving the practicality of the device and enabling it to be used in more drilling operation environments. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of a partial explosion structure provided by this utility model.
[0016] Reference numerals in the attached drawings: 1. Drilling machine body; 2. Limiting block; 3. Base; 4. Dust cover; 5. Airbag; 6. Connecting block; 7. Limiting post; 8. Spring. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:
[0018] like Figure 1-2 The invention relates to a drilling device for exterior walls in construction engineering, comprising a drilling machine body 1 and a base 3. A limiting block 2 is connected to the outer end of the drilling machine body 1 near the drill bit. The base 3 is sleeved on the outer end of the drilling machine body 1 and slidably connected to the drilling machine body 1. Multiple springs 8 are connected between the base 3 and the limiting block 2. An airbag 5 is connected to the end of the base 3 away from the limiting block 2. A connecting block 6 is connected to the end of the airbag 5 away from the base 3. A dust cover 4 is detachably connected to one end of the connecting block 6. The dust cover 4 surrounds the outside of the drill bit. The base 3, the airbag 5, and the connecting block 6 are all configured as annular structures and are coaxially arranged.
[0019] Portable drilling machines are common drilling tools suitable for most drilling operations. However, drilling into walls generates a lot of dust, which not only pollutes the working environment but also causes discomfort to workers. Some existing drilling machines are equipped with movable dust covers near the drill bit to block dust. However, in actual use, the dust cover can only move parallel to the drill bit. When the user needs to drill at an angle, the dust cover cannot fit well against the wall, thus failing to provide effective dust protection. Its applicability needs to be improved.
[0020] In this solution, when the worker uses the main body 1 of the drilling machine, one end of the dust cover 4 is placed against the wall. Then, the drill bit on the main body 1 of the drilling machine is started to drill a hole in the wall. The worker pushes the drill bit into the wall, and the dust cover 4 will push the connecting block 6, the air bag 5 and the base 3 in sequence to move, so that the base 3 slides on the outside of the main body 1 of the drilling machine and compresses the spring 8. During the drilling process, the dust cover 4 always surrounds the outside of the drill bit and is in contact with the wall and the main body 1 of the drilling machine. This allows the dust generated near the drill bit to be collected inside the dust cover 4 and prevents it from flying outward, thus achieving a good dust prevention effect. The elastic force of the spring 8 can ensure that the dust cover 4 is always in contact with the wall during the drilling process and causes the dust cover 4 to return to its original position after the drilling is completed. The dust cover 4 is detachably connected to the connecting block 6, which makes it easy for the worker to remove the dust cover 4 for cleaning or replacement.
[0021] In this design, the airbag 5 is designed as a ring structure with uniform air pressure and thickness throughout. Under normal conditions, the connecting block 6 and the base 3 remain relatively parallel. When the worker needs to drill at an angle, one end of the dust cover 4 can be placed against the wall. Then, the drilling machine body 1 and the drill bit can be tilted in a certain direction. At this time, one end of the dust cover 4 will still be in contact with the wall, but the airbag 5 will deform, allowing the drilling machine body 1 to tilt while maintaining the connection between the dust cover 4 and the drilling machine body 1, ensuring that the dust cover 4 has an effective dustproof effect. Then, the user can drill at an angle. At this time, the base 3 can still slide normally on the outside of the drilling machine body 1.
[0022] The base 3 is connected to a plurality of limiting posts 7 at one end near the limiting block 2. One end of the limiting post 7 passes through the limiting block 2, and the spring 8 is sleeved on the outer end of the limiting post 7.
[0023] In this design, as the base 3 moves at the outer end of the drilling machine body 1, it will cause the spring 8 to pass through the limit block 2 and force the spring 8 to be squeezed at the outer end of the limit post 7. The setting of the limit post 7 enhances the stability of the base 3 during movement and prevents the spring 8 from being misaligned during compression.
[0024] Dust cover 4 is made of transparent material.
[0025] In this solution, the dust cover 4 is made of transparent material so that workers can observe the position of the drill bit during operation, and avoid the dust cover 4 obstructing the field of vision and causing a decrease in drilling accuracy.
[0026] The cross-sectional shape of the dust cover 4 is set as trapezoidal, and the inner diameter of the dust cover 4 gradually increases along the direction from the drill bit to the main body 1 of the drilling machine.
[0027] In this solution, the inner wall of the dust cover 4 is designed with an inclined structure, which allows the dust that falls inside the dust cover 4 to quickly enter the depth of the dust cover 4 and will not fall out from the gap between the dust cover 4 and the wall. Workers can then empty the dust collected inside the dust cover 4 into the trash can after drilling, which brings convenience to the collection of dust.
[0028] A rubber gasket is connected to the end of the dust cover 4 away from the main body 1 of the drilling machine, and the rubber gasket is set around the dust cover 4.
[0029] In this solution, when the dust cover 4 is against the wall, the rubber gasket on the dust cover 4 abuts against the wall. The setting of the rubber gasket can enhance the friction between the dust cover 4 and the wall, thereby improving the stability of the dust cover 4 and preventing the dust cover 4 from easily sliding on the wall during the positioning process.
[0030] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A drilling device for exterior walls in building construction, characterized in that: The device includes a drilling machine body (1) and a base (3). The outer end of the drilling machine body (1) near the drill bit is connected to a limiting block (2). The base (3) is sleeved on the outer end of the drilling machine body (1) and slidably connected to the drilling machine body (1). Multiple springs (8) are connected between the base (3) and the limiting block (2). An airbag (5) is connected to the end of the base (3) away from the limiting block (2). A connecting block (6) is connected to the end of the airbag (5) away from the base (3). A dust cover (4) is detachably connected to one end of the connecting block (6). The dust cover (4) surrounds the outside of the drill bit.
2. The building exterior wall drilling device as described in claim 1, characterized in that: The base (3), airbag (5) and connecting block (6) are all configured as annular structures and coaxially arranged.
3. The building exterior wall drilling device as described in claim 1, characterized in that: The base (3) is connected to a plurality of limiting posts (7) at one end near the limiting block (2). One end of the limiting post (7) passes through the limiting block (2), and the spring (8) is sleeved on the outer end of the limiting post (7).
4. The building exterior wall drilling device as described in claim 1, characterized in that: The dust cover (4) is made of transparent material.
5. The building exterior wall drilling device as described in claim 1, characterized in that: The dust cover (4) has a trapezoidal cross-sectional shape, and the inner diameter of the dust cover (4) gradually increases along the direction from the drill bit to the main body (1) of the drilling machine.
6. The building exterior wall drilling device as described in claim 1, characterized in that: A rubber gasket is connected to one end of the dust cover (4) away from the main body (1) of the drilling machine, and the rubber gasket is arranged around the dust cover (4).