Dustproof device for ground drilling of corrugated beam guardrail
The combination of a ring-shaped base and a metal mesh outer layer of moist filter element solves the problem of poor dust prevention in the ground drilling device for corrugated beam guardrails, achieving efficient dust filtration and water conservation, and reducing construction risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ROAD & BRIDGE CONSTR GRP CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-29
AI Technical Summary
The existing ground drilling device for corrugated beam guardrails has poor dust control, dust easily overflows, and consumes a lot of water, resulting in resource waste and increased construction risks.
It adopts a combination structure of ring base, metal mesh and outer moist filter element. The metal mesh initially intercepts gravel and coarse particles, and the outer moist filter element is a corrugated plant fiber filter paper for two-stage filtration, which reduces water waste and improves dust prevention.
It effectively filters large dust particles, reduces water waste, minimizes the risk of slippery roads, and lowers construction risks.
Smart Images

Figure CN224300839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway guardrail construction technology, specifically a dustproof device for drilling holes in corrugated beam guardrails. Background Technology
[0002] Ground drilling is an essential step in the construction of corrugated beam guardrails, used to break up hard rocks and concrete blocks at the piling location. Drilling machines are typically equipped with air compressors to blow out stones and powder from the holes, accelerating the drilling process. However, drilling generates significant dust, which not only pollutes the environment but also harms the health of construction workers. Therefore, water trucks equipped with mist cannons are needed to suppress the dust.
[0003] Therefore, it is necessary to add dust prevention measures during drilling. There is an invention patent with application number 202110050868.2 entitled "A Vertical Ground Drilling Machine with a Dust Cover," which discloses: a fixed dust cover 33 is fixedly mounted on the end face of the horizontal connecting rod 36 away from the drilling lifting chamber 17; the fixed dust cover 33 has a downward-opening, front-to-back arc-shaped dust cover storage cavity 34; an unfolded dust cover 35 is slidably connected within the dust cover storage cavity 34; a bottom fixed dust cover 70 is provided on the lower side of each fixed dust cover 33; the bottom fixed dust cover 70 has an upward-opening buffer cavity 56; the lower end of the fixed dust cover 33 is slidably connected to the buffer cavity 56; buffer springs 60 are evenly distributed and fixedly connected between the lower end face of the fixed dust cover 33 and the lower wall of the buffer cavity 56; and the lower wall of the buffer cavity 56 is connected to a downward-opening, front-to-back arc-shaped... The bottom storage cavity 54 contains a sliding bottom dust cover 55. The unfolded dust cover 35 contains a downward-opening lifting connecting block cavity 57. The lifting connecting block cavity 57 contains a sliding lifting connecting block 58. The lower end face of the lifting connecting block 58 is fixedly connected to the upper end face of the bottom dust cover 55. A lifting connecting spring 59 is fixedly connected between the upper end face of the lifting connecting block 58 and the upper wall of the lifting connecting block cavity 57. The fixed dust cover 33 contains a water cavity 48 on the side of the dust cover storage cavity 34 near the drilling base 11. The side wall of the water cavity 48 near the drilling base 11 is connected to a water nozzle 49 with an opening facing the drilling base 11. A water nozzle 50 is fixedly installed on the side wall of the fixed dust cover 33 near the drilling base 11, directly opposite each water nozzle 49. The lower side of all the water cavities 48 is connected to an external water pump.
[0004] The above solution has the following problems: 1. Poor dust prevention effect, the distance between the dust cover and the drill bit is large, and dust still overflows through the gap in the middle; 2. Large water consumption, which wastes resources and makes the soil at the drilling site slippery, increasing the risk of operation for workers. Utility Model Content
[0005] The purpose of this utility model is to solve the above-mentioned problems and provide a dustproof device for drilling holes in corrugated beam guardrails. It has a good dustproof effect, effectively filters large particles, efficiently captures dust, reduces water waste, prevents slippery road surfaces, and reduces construction risks.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A dustproof device for drilling holes in a corrugated beam guardrail includes an annular base, a metal mesh disposed on the base, and an outer layer of moist filter element disposed on the outside of the metal mesh.
[0008] Furthermore, the base is provided with two layers of support rods, and a number of support rods are evenly distributed along the circumference of the base, with the two layers of support rods arranged alternately.
[0009] Furthermore, the support rod has a cavity inside, and the side wall of the support rod has a plurality of first through holes, which communicate with the cavity.
[0010] Furthermore, the upper end of the support rod is provided with an annular pipe, the upper end of the cavity of the support rod is connected to the annular pipe, and the upper end of the annular pipe is connected to the water tank through a flexible hose.
[0011] Furthermore, the lower end of the annular pipe is provided with a second through hole, and the upper end of the support rod is provided with a protrusion that extends into the second through hole.
[0012] Furthermore, the base is provided with a connecting rod, the lower end of which is fixed to the base, and the upper end of which is connected to the annular pipe.
[0013] Furthermore, the upper end of the connecting rod is provided with a threaded rod, and the annular pipe is provided with a connecting plate. The threaded rod passes through the connecting plate and is fixed by a nut.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model includes an annular base, a metal mesh disposed on the base, and an outer moistening filter element disposed outside the metal mesh. The metal mesh can initially intercept gravel and coarse particles, protecting the outer filter element. The outer moistening filter element is a corrugated plant fiber filter paper. Through two-stage filtration, it has good dust prevention effect, effectively filters large particles, efficiently captures dust, reduces water waste, prevents slippery road surfaces, and reduces construction risks. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a top view of the present invention;
[0019] Figure 3 for Figure 2 Sectional view at point AA;
[0020] Figure 4 for Figure 3 Enlarged view of a section at point B in the middle;
[0021] Figure 5 This is the front view of the present utility model;
[0022] Figure 6 for Figure 5 Sectional view at point CC.
[0023] In the diagram: 1. Base; 2. Metal mesh; 3. Outer wetting filter element; 4. Support rod; 5. Cavity; 6. Annular pipe; 7. Flexible hose; 8. Connecting rod; 9. Threaded rod; 10. Connecting plate; 11. Nut. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0025] like Figures 1 to 3As shown, a dustproof device for drilling holes in a corrugated beam guardrail includes an annular base 1, a metal mesh 2 mounted on the base 1, and an outer moistening filter element 3 disposed outside the metal mesh 2. The metal mesh 2 is a cylindrical sleeve structure. The metal mesh 2 is a 304 stainless steel woven mesh with a 2mm mesh size and a 0.5mm wire diameter, providing impact resistance and wear resistance. It can initially intercept gravel and coarse particles >100μm, protecting the outer filter element. The outer moistening filter element 3 is a corrugated plant fiber filter paper. Through two-stage filtration, it provides good dustproof performance, effectively filtering large particles and efficiently capturing dust, while reducing water waste, preventing slippery road surfaces, and lowering construction risks.
[0026] like Figure 5 and Figure 6 As shown, the base 1 is provided with two layers of support rods 4. Several support rods 4 are evenly arranged along the circumference of the base 1. The two layers of support rods 4 are staggered. The outer layer of wet filter element 3 passes around the adjacent support rods in sequence to form a continuous bending structure, which increases the filtration area.
[0027] like Figure 4 As shown, the support rod 4 has a cavity 5 inside, and the side wall of the support rod 4 has a number of first through holes. The first through holes are connected to the cavity 5. The water in the cavity 5 wets the outer layer of the wet filter element 3 through the first through holes, ensuring the filtration effect of the outer layer of the wet filter element 3. Compared with the spray method, less water is wasted.
[0028] like Figure 4 As shown, the upper end of the support rod 4 is provided with an annular pipe 6, and the upper end of the cavity 5 of the support rod 4 is connected to the annular pipe 6. The upper end of the annular pipe 6 is connected to the water tank through a flexible hose 7, and the water in the water tank enters the annular pipe 6 through the flexible hose 7.
[0029] like Figure 4 As shown, the lower end of the annular pipe 6 is provided with a second through hole, which corresponds one-to-one with the support rod 4. The upper end of the support rod 4 is provided with a protrusion that extends into the second through hole. This achieves the positioning of the upper end of the support rod 4, and the water in the annular pipe 6 enters the cavity of the support rod 4 through the second through hole.
[0030] like Figure 3 As shown, the base 1 is provided with a connecting rod 8, the lower end of the connecting rod 8 is fixed on the base 1, and the upper end of the connecting rod 8 is connected to the annular pipe 6.
[0031] like Figure 4 As shown, the upper end of the connecting rod 8 is provided with a threaded rod 9, and the annular pipe 6 is provided with a connecting plate 10. The threaded rod 9 passes through the connecting plate 10 and is fixed by a nut 11. By removing the nut 11, the annular pipe 6 can be removed, making it convenient to take out and replace the outer wet filter element 3.
[0032] In the description of this utility model, it should be noted that the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A dustproof device for drilling holes in the ground of a corrugated beam guardrail, characterized in that, It includes an annular base (1), a metal mesh (2) disposed on the base (1), and an outer wetted filter element (3) disposed outside the metal mesh (2).
2. The dustproof device for drilling holes in the ground of a corrugated beam guardrail as described in claim 1, characterized in that, The base (1) is provided with two layers of support rods (4). Several support rods (4) are evenly arranged along the circumference of the base (1), and the two layers of support rods (4) are staggered.
3. The dustproof device for drilling holes in the ground of a corrugated beam guardrail as described in claim 2, characterized in that, The support rod (4) has a cavity (5) inside, and a number of first through holes are provided on the side wall of the support rod (4), which are connected to the cavity (5).
4. A dustproof device for drilling holes in the ground of a corrugated beam guardrail as described in claim 3, characterized in that, The upper end of the support rod (4) is provided with an annular pipe (6), the upper end of the cavity (5) of the support rod (4) is connected to the annular pipe (6), and the upper end of the annular pipe (6) is connected to the water tank through a hose (7).
5. A dustproof device for drilling holes in the ground of a corrugated beam guardrail as described in claim 4, characterized in that, The lower end of the annular pipe (6) is provided with a second through hole, and the upper end of the support rod (4) is provided with a protrusion that extends into the second through hole.
6. A dustproof device for drilling holes in the ground of a corrugated beam guardrail as described in claim 4, characterized in that, The base (1) is provided with a connecting rod (8), the lower end of the connecting rod (8) is fixed on the base (1), and the upper end of the connecting rod (8) is connected to the annular pipe (6).
7. A dustproof device for drilling holes in the ground of a corrugated beam guardrail as described in claim 6, characterized in that, The upper end of the connecting rod (8) is provided with a threaded rod (9), and the annular pipe (6) is provided with a connecting plate (10). The threaded rod (9) passes through the connecting plate (10) and is fixed by a nut (11).
Citation Information
Patent Citations
Vertical ground drilling machine with dustproof cover
CN112664146A