Dustproof structure of building drilling device

By installing a protective sleeve structure on the outside of the drill bit, and utilizing elastic rings and a telescopic covering structure, the problem of ineffective water spray dust suppression was solved, achieving effective dust prevention at different drilling depths and avoiding damage to the equipment.

CN224183411UActive Publication Date: 2026-05-01HEBEI JIANHUAI ARCHITECTURAL DECORATION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI JIANHUAI ARCHITECTURAL DECORATION ENG CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In existing building drilling processes, water spraying is not effective for downward or horizontal drilling, may damage equipment, and causes serious dust dispersion.

Method used

A building drilling device including a sheath structure is designed. The sheath structure is installed on the outside of the electric drill bit through a movable locking component. It utilizes elastically connected ring plates and a telescopic covering structure to adapt to changes in drilling depth, reduce dust overflow, and can be used in conjunction with a water spray system.

Benefits of technology

It effectively reduces dust overflow during drilling, improves dust prevention, adapts to different drilling depths, and avoids damage to instruments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building drilling, in particular to a building drilling device dustproof structure which comprises a sheath structure, the sheath structure is installed on the outer side of an electric drill bit through a movable locking piece, the sheath structure comprises a sleeve, a first ring piece is arranged at the front end of the sleeve, and the first ring piece is elastically connected with the sleeve through a first spring and a sliding rod. A second ring piece is arranged on the side, away from the sleeve, of the first ring piece, and the second ring piece is elastically connected with the first ring piece through a second spring. Telescopic coating structures for preventing dust from overflowing are arranged between the sleeve and the first ring piece and between the first ring piece and the second ring piece. Locking of the sleeve outside the electric drill is completed through the fixed ring and the movable ring, convenient installation of the sheath structure outside the drill bit of the electric drill is achieved, the first elastically-installed ring piece and the second elastically-installed ring piece are arranged in the sheath structure so as to adapt to different drilling depths, the effect of always wrapping the outer portion of the drill bit is guaranteed, and therefore the dustproof effect is improved.
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Description

Dustproof structure for building drilling equipment Technical Field

[0001] This application relates to the technical field of building drilling, and in particular to dustproof structures for building drilling devices. Background Technology

[0002] Existing building drilling typically employs devices such as electric drills, using the drill bit to break down the building structure itself to complete the drilling operation. Because the building is gradually ground down, a large amount of dust is generated. Under normal circumstances, unconstrained dust will rapidly spread to the surrounding area under the rotation of the drill bit. Some existing technologies employ water spraying during the drilling process to suppress dust, which is effective for downward drilling. However, for downward or horizontal drilling, water spraying is ineffective and may even damage the equipment. Therefore, to solve the above problems, this application provides a dustproof structure for building drilling devices. Summary of the Invention

[0003] To address the problem of inadequate dust suppression methods in existing building drilling, this application provides a dustproof structure for building drilling devices.

[0004] The dustproof structure for the building drilling device provided in this application includes a protective sleeve structure. The protective sleeve structure is installed on the outside of the electric drill bit through a movable locking component. The protective sleeve structure includes a sleeve. A ring plate one is provided at the front end of the sleeve. The ring plate one is elastically connected to the sleeve through a spring one, a sliding rod, and a ring plate two is provided on the side of the ring plate one away from the sleeve. The ring plate two is elastically connected to the ring plate one through a spring two.

[0005] A telescopic covering structure is provided between the sleeve and ring plate one, and between ring plate one and ring plate two to prevent dust from overflowing.

[0006] By setting a spring plate 1, which is elastically connected by a slide rod and a spring 1, and a ring plate 2, which is elastically connected by a spring 2, at the front of the sleeve, the ring plate 2 contacts the building surface during drilling. With the external telescopic covering structure, it can adapt to changes in drilling depth while effectively reducing dust overflow, thereby improving the dust prevention effect during drilling operations.

[0007] Preferably, the inner side of the sleeve has a ring array of sleeves, the slide rod is slidably embedded in the inner side of the sleeve, and one end of the spring is fixedly connected to the bottom end of the slide rod and the inner wall of the sleeve, respectively.

[0008] Preferably, the second spring and the second ring plate are arranged along the same axis.

[0009] Preferably, the telescopic covering structure includes a first enclosure disposed between the sleeve and the first annular piece, and a second enclosure disposed between the first annular piece and the second annular piece.

[0010] Preferably, the movable locking component includes a fixed ring fixedly connected to the sleeve, one end of the fixed ring is hinged to a movable ring, and the movable mating ends of the fixed ring and the movable ring are fixed in position by a locking bolt.

[0011] Preferably, rubber rings are attached to the inner sides of both the fixed ring and the movable ring.

[0012] Preferably, an inner cylinder is also fixed on the inner wall of the sleeve, and the inner cylinder is slidably sleeved on the outside of the drill bit clamping part.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] The sleeve is locked to the outside of the electric drill by a fixed ring and a movable ring, which enables convenient installation of the sleeve structure on the outside of the drill bit. The sleeve structure is equipped with two elastically installed ring plates to adapt to different drilling depths, ensuring a constant covering effect on the outside of the drill bit, thereby improving the dustproof effect. Attached Figure Description

[0015] Figure 1 is an isometric view of Embodiment 1 of this application;

[0016] Figure 2 is a longitudinal sectional view of Embodiment 1 of this application;

[0017] Figure 3 is a partial cross-sectional view of Embodiment 1 of this application;

[0018] Figure 4 is an installation diagram of Embodiment 1 of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Electric drill; 2. Sheath structure; 21. Sleeve; 211. Tube; 212. Spring 1; 22. Ring 1; 221. Slide rod; 23. Enclosure 1; 24. Ring 2; 25. Enclosure 2; 26. Spring 2; 3. Fixed ring; 31. Movable ring; 32. Locking bolt; 4. Rubber ring; 5. Inner cylinder. Detailed Implementation

[0020] The present application will be further described in detail below with reference to Figures 1-4.

[0021] Example 1:

[0022] The dustproof structure of the building drilling device, as shown in Figures 1-4, includes a sheath structure 2. The sheath structure 2 is installed on the outside of the drill bit of the electric drill 1 via a movable locking component. The movable locking component includes a fixed ring 3 fixedly connected to a sleeve 21. One end of the fixed ring 3 is hinged to a movable ring 31. The movable mating ends of the fixed ring 3 and the movable ring 31 are fixed in position by a locking bolt 32. Both the fixed ring 3 and the movable ring 31 have parallel plates. The locking bolt 32 and the two parallel plates are threaded together. The locking bolt 32 is used to bring the two parallel plates closer together, achieving a locking fixation. Rubber rings 4 are attached to the inner sides of both the fixed ring 3 and the movable ring 31. The rubber rings 4 improve the sealing performance after tightening and reduce damage to the outer shell of the electric drill 1 caused by the fixed ring 3 and the movable ring 31.

[0023] The sheath structure 2 includes a sleeve 21. A ring plate 22 is provided at the front end of the sleeve 21. The ring plate 22 is elastically connected to the sleeve 21 via a spring 212, a slide rod 221, and a ring plate 24 is provided on the side of the ring plate 22 away from the sleeve 21. The ring plate 24 is elastically connected to the ring plate 22 via a spring 26.

[0024] The inner side of the sleeve 21 has a ring array of sleeves 211. A sliding rod 221 is slidably embedded inside the sleeve 211. The two ends of the spring 212 are fixedly connected to the bottom end of the sliding rod 221 and the inner wall of the sleeve 21, respectively. When the ring plate 22 is compressed, it will move the sliding rod 221 towards the bottom end of the sleeve 211, thereby compressing the spring 212 inside the sleeve 211 to adapt to changes in drilling depth. The spring 26 and the ring plate 24 are arranged coaxially. The function of the spring 26 is also to adapt to the drilling depth. The compression stroke of the spring 26 and the spring 212 is greater than the maximum length of the drill bit, ensuring that the external dustproof structure can still adapt when the drilling reaches the maximum stroke.

[0025] A telescopic covering structure is provided between the sleeve 21 and the first ring plate 22, and between the first ring plate 22 and the second ring plate 24 to prevent dust from overflowing. The telescopic covering structure includes a first enclosure 23 disposed between the sleeve 21 and the first ring plate 22, and a second enclosure 25 disposed between the first ring plate 22 and the second ring plate 24. Both the first enclosure 23 and the second enclosure 25 are transparent structures, and both are foldable structures. When the first spring 212 and the second spring 26 retract, they are folded and compressed to adapt to the positional changes of the first ring plate 22 and the second ring plate 24.

[0026] An inner cylinder 5 is also fixed on the inner wall of the sleeve 21. The inner cylinder 5 is slidably sleeved on the outside of the drill bit clamping part of the electric drill 1. The purpose of setting the inner cylinder 5 is to receive the debris above, thereby reducing the direct entry of debris and dust into the end position of the electric drill 1, which would cause excessive dust in that position, increase resistance, and affect subsequent normal use. The inner cylinder 5 and the clamping part of the electric drill 1 are fitted with a clearance and do not come into contact with each other to avoid unnecessary friction. The height of the end of the inner cylinder 5 is less than the height of the clamping part of the electric drill 1 to prevent excessive dust accumulation at the end of the clamping part.

[0027] Before drilling, the device is inserted into the end of the electric drill 1, and then the movable ring 31 and the fixed ring 3 are aligned and tightened with the locking bolt 32 to complete the convenient installation of the device. The device can also be used in conjunction with a water spraying system. A pipe is connected to the sleeve 21 and runs through it, so that water spraying is performed when drilling downwards and horizontally, further improving the dust reduction effect.

[0028] The foregoing description of the exemplary embodiments of the dustproof structure for the building drilling device provided in this disclosure refers to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A dustproof structure for a building drilling device, comprising a sheath structure (2), wherein the sheath structure (2) is installed on the outside of the drill bit of an electric drill (1) via a movable locking member, characterized in that: The sheath structure (2) includes a sleeve (21), and a ring plate (22) is provided at the front end of the sleeve (21). The ring plate (22) is elastically connected to the sleeve (21) through a spring (212), a slide rod (221), and a ring plate (24) is provided on the side of the ring plate (22) away from the sleeve (21). The ring plate (24) is elastically connected to the ring plate (22) through a spring (26). A telescopic covering structure to prevent dust from overflowing is provided between the sleeve (21) and the ring plate (22), and between the ring plate (22) and the ring plate (24).

2. The dustproof structure according to claim 1, characterized in that: The inner side of the sleeve (21) has a ring array of sleeves (211), and the slide rod (221) is slidably embedded in the inner side of the sleeve (211). The two ends of the spring (212) are fixedly connected to the bottom end of the slide rod (221) and the inner wall of the sleeve (21), respectively.

3. The dustproof structure according to claim 1, characterized in that: The second spring (26) and the second ring plate (24) are arranged coaxially.

4. The dustproof structure according to claim 1, characterized in that: The telescopic covering structure includes a first enclosure (23) disposed between the sleeve (21) and the first ring piece (22), and a second enclosure (25) disposed between the first ring piece (22) and the second ring piece (24).

5. The dustproof structure according to claim 1, characterized in that: The movable locking component includes a fixed ring (3) that is fixedly connected to the sleeve (21). One end of the fixed ring (3) is hinged to a movable ring (31). The movable mating ends of the fixed ring (3) and the movable ring (31) are fixed in position by locking bolts (32).

6. The dustproof structure according to claim 5, characterized in that: Rubber rings (4) are attached to the inner sides of both the fixed ring (3) and the movable ring (31).

7. The dustproof structure according to claim 1, characterized in that: An inner cylinder (5) is also fixed on the inner wall of the sleeve (21), and the inner cylinder (5) is slidably sleeved on the outside of the drill bit clamping part of the electric drill (1).