Drilling dust collector
By controlling and designing the airflow inside the lightweight dust collection tank, the problems of complex structure, heavy weight, high cost and poor dust collection effect in the existing technology are solved, and the effect of simple structure, light weight, low cost and good dust collection effect is achieved.
Patent Information
- Application Number
- CN202520260522.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing drilling dust collection devices are complex in structure, heavy in weight, costly, and have poor dust collection effect.
A lightweight dust collection can was designed, which is equipped with an inclined airflow baffle and an airflow guide channel. Combined with an air pressure balance port and a filter, dust is introduced through the dust inlet pipe and sinks inside the can. Efficient collection is achieved by using lightweight materials and airflow control.
It achieves the effects of simple structure, light weight, low cost and good dust collection effect, avoiding dust pollution of the environment and harm to health.
Smart Images
Figure CN223763496U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of construction engineering equipment. In particular, it relates to a drilling dust collector. Background Technology
[0002] Currently, impact drills are frequently used for drilling during decoration and construction. Impact drilling is generally a dry operation, creating holes in walls through the high-speed impact and rotation of the drill bit. However, as the hole is formed, the wall material within the hole area is broken into dry powder, which is blown out of the hole due to changes in air pressure and airflow, causing significant dust pollution in the surrounding environment. Inhaling this dust can harm human health. Therefore, measures are needed to prevent the generation and spread of drilling dust.
[0003] To address the problem of drilling dust polluting the environment, devices for collecting drilling dust have been designed. For example, a utility model application published in the Chinese Patent Publication No. "2022214509638," entitled "A Device for Collecting Drilling Dust from Walls or Ceilings," includes a hand drill body. A drill rod is located at the output end of the hand drill body, and a collection cover is located at the port of the hand drill body. A fixing ring is located at the output end of the hand drill body. The collection cover and the fixing ring are connected by a positioning device. Connecting rods are threaded through opposite sidewalls of the fixing ring. A fixing device is fixedly connected to one end of each connecting rod inside the fixing ring, and a toggle device is fixedly connected to the other end of each connecting rod outside the fixing ring. A spring is located on the inner wall of the collection cover. A utility model application with application number "2015202025198" and titled "A Dust Collection Device for Concrete Drilling" includes a negative pressure dust collection device and a negative pressure collection device. The negative pressure collection device is sealed to the negative pressure dust collection device via a collecting pipe. The negative pressure collection device includes a collection pipe and an air return sleeve. The air return sleeve is configured to fit the borehole diameter and is fitted onto the collection pipe. The negative pressure dust collection device internally includes an exhaust fan, a filter screen, and guide plates. The exhaust fan is located at the top of the negative pressure dust collection device, the filter screen is located below the exhaust fan on the negative pressure dust collection device, and the guide plates are located below the filter screen and above the collecting pipe on the negative pressure dust collection device. A negative pressure channel is formed between the guide plates. Although these two utility models can collect dust generated during drilling, they suffer from problems such as complex structure, heavy weight, high cost, and poor dust collection effect. Utility Model Content
[0004] The purpose of this invention is to solve the problems of complex structure, heavy weight, high cost and poor dust collection effect of existing dust collection devices, and to provide a drilling dust collector with the characteristics of simple structure, light weight, low cost and good dust collection effect.
[0005] To achieve the objective of this utility model, the following technical solutions can be adopted:
[0006] A drilling dust collector includes a dust collection tank, characterized by the following structural features: a dust inlet pipe at the front, a rear end hole at the rear, and an air pressure balancing port at the upper rear; dust is introduced into the dust collection tank through the dust inlet pipe, and the air pressure inside the dust collection tank is balanced through the air pressure balancing port; an airflow baffle is provided in the inner cavity of the dust collection tank, the baffle being an inclined structure with its upward inclined surface facing the dust inlet pipe, and a through hole in the airflow baffle to facilitate the passage of the drill bit; an airflow guiding groove is provided on the airflow baffle to obstruct and guide the airflow, causing the dust to sink to the bottom of the dust collection tank; an opening is provided on the bottom surface of the dust collection tank, and a movable bottom cover is provided at the opening, allowing the bottom surface of the dust collection tank to be in a closed or open state; a front end support is provided in the inner cavity at the rear end of the dust inlet pipe, and a rear end support is provided at the rear end hole, forming a support structure for the dust collection tank in use; the dust collection tank is a lightweight structure.
[0007] To achieve the objectives of this utility model, the following technical solutions may also be adopted:
[0008] Furthermore, a soft pad ring is provided at the front end of the ash inlet pipe, which contacts the wall to form a structure similar to a soft suction cup.
[0009] Furthermore, the movable bottom cover is connected to the bottom side wall of the dust collection tank via a switch latch to form a movable connection structure.
[0010] Furthermore, the front-end support is composed of an arc-shaped iron sheet structure fixedly connected to the inner cavity of the ash inlet pipe, and the rear-end support is composed of an arc-shaped iron sheet structure fixedly connected to the rear port. By contacting the drill bit of the impact drill, they form the support structure of the dust collection tank.
[0011] Furthermore, a filter screen is installed at the air pressure balance port to prevent dust from overflowing: by installing an air pressure balance port at the top of the dust collection tank, the air pressure inside the collection tank is kept stable, preventing dust from being disturbed by the airflow and making it difficult to settle.
[0012] Furthermore, the dust collection tank is a lightweight, one-piece injection molded structure.
[0013] Furthermore, the dust collection tank is a lightweight structure made of a cube, elongated cube, cylinder, or square tube through injection molding.
[0014] This utility model has the following features and beneficial effects:
[0015] 1. This utility model introduces dust into a dust collection tank through an inlet pipe and balances the air pressure inside the dust collection tank through an air pressure balancing port. An airflow baffle is installed inside the dust collection tank. This baffle has an inclined structure, with its upward inclined surface facing the inlet pipe. A through hole is provided in the baffle to facilitate the passage of a drill bit. An airflow guiding groove is also provided on the baffle to obstruct and guide the airflow, causing the dust to settle to the bottom of the dust collection tank. The dust collection tank 10 has a lightweight structure. Therefore, it can solve the problems of complex structure, heavy weight, high cost, and poor dust collection effect of existing dust collection devices, and has the characteristics of simple structure, light weight, low cost, and good dust collection effect.
[0016] 2. This utility model balances the air pressure inside the dust collection tank through the air pressure balancing port, which can prevent the air pressure inside the dust collection tank from fluctuating. Therefore, it has the characteristics of keeping the air pressure inside the collection tank stable and avoiding dust from being difficult to settle due to chaotic airflow.
[0017] 3. This utility model has an airflow baffle in the inner cavity of the dust collection tank, which blocks and guides the airflow entering the dust collection tank. By blocking and guiding the airflow, the dust can be smoothly deposited to the bottom of the dust collection tank. Therefore, it can greatly improve the dust collection rate and has the characteristics of good dust collection effect.
[0018] 4. The dust collection can of this utility model is lightweight and easy to use due to its lightweight structure, which allows the entire dust collector to be easily and stably hung on the impact drill bit. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the structure of this utility model in use.
[0021] Figure 3 This is a cross-sectional view of the structure in use of this utility model. Detailed Implementation Specific Implementation Example 1:
[0023] Reference Figure 1The drilling dust collector involved in this embodiment 1 includes a dust collection tank 10. A dust inlet pipe 1 is provided at the front of the dust collection tank 10, a rear end hole 2 is provided at the rear, and an air pressure balancing port 3 is provided at the upper part of the rear. Dust is introduced into the dust collection tank 10 through the dust inlet pipe 1, and the air pressure inside the dust collection tank 10 is balanced through the air pressure balancing port 3. An airflow baffle 4 is provided in the inner cavity of the dust collection tank 10. The airflow baffle 4 is inclined, with its upward inclined surface facing the direction of the dust inlet pipe 1. A through hole 4-1 is provided in the airflow baffle 4 to facilitate the passage of the drill bit. The dust collection tank 10 is provided with an airflow guiding groove to block and guide the airflow, allowing dust to sink to the bottom of the dust collection tank 4; the bottom surface of the dust collection tank 10 is provided with an opening, and a movable bottom cover 5 is provided at the opening, which allows the bottom surface of the dust collection tank 10 to be in a closed or open state; a front end support 1-1 is provided in the inner cavity of the rear end of the dust inlet pipe 1, and a rear end support 2-1 is provided at the rear end hole 2, which together form the support structure of the dust collection tank 10 in the use state; the dust collection tank 10 is a lightweight structure.
[0024] In this embodiment:
[0025] Furthermore, a soft pad ring 6 is provided at the front end of the ash inlet pipe 1, which contacts the wall to form a structure similar to a soft suction cup.
[0026] Furthermore, the movable bottom cover 5 is connected to the bottom side wall of the dust collection tank 10 via a switch bayonet 5-1 to form a movable connection structure.
[0027] Furthermore, the front support 1-1 is composed of an arc-shaped iron sheet structure fixedly connected to the inner cavity of the ash inlet pipe 1, and the rear support 2-1 is composed of an arc-shaped iron sheet structure fixedly connected to the rear port 2. By contacting the drill bit of the impact drill, they form a support structure for the dust collection tank.
[0028] Furthermore, a filter screen 7 is installed at the air pressure balance port 3 to prevent dust from overflowing: by installing the air pressure balance port 3 at the top of the dust collection tank, the air pressure inside the collection tank is kept stable, preventing dust from becoming disordered by the airflow and making it difficult to settle.
[0029] Furthermore, several airflow grooves 4-2 are provided on the bottom surface of the airflow baffle 4 to form an airflow guiding and dust particle falling structure.
[0030] Furthermore, the dust collection tank 10 is a lightweight, one-piece injection molded structure.
[0031] The soft pad ring 6 is made of plastic. The front support 1-1 is composed of an arc-shaped iron sheet fixedly connected to the inner cavity of the ash inlet pipe 1. The rear support 2-1 is composed of an arc-shaped iron sheet fixedly connected to the rear port 2. The filter screen 7 is composed of a metal filter screen or a plastic filter screen. Apart from this, the remaining components of this embodiment are made of PET (polyethylene terephthalate). Its low density and lightweight nature allow the entire dust collector to be easily and stably hung on the impact drill bit. PET material has good transparency, which is beneficial for operators to observe the dust accumulation inside the tank in real time. PET material has good impact resistance, toughness, and deformation capacity. When the air pressure changes suddenly, the tank itself has a certain deformation capacity, which can keep the air pressure inside the tank stable.
[0032] The dust collection tank 10 is a lightweight cubic structure integrally molded by injection molding, with a length, width, and height of 10-50 cm (cube); or a length of 20 cm, a width of 15 cm, and a height of 50 cm (cube); or a length of 30 cm, a width of 25 cm, and a height of 50 cm (cube); or a length of 40 cm, a width of 35 cm, and a height of 35 cm (cube).
[0033] The working principle of this utility model will be explained in detail below with reference to the accompanying drawings:
[0034] Figure 2 This is a schematic diagram illustrating the combined use of the dust collector of this utility model and an impact drill.
[0035] Figure 3 This is a cross-sectional view of the working dust collector of this utility model.
[0036] Reference Figure 2 In practical applications, the drill bit 30-1 of the impact drill 30 passes sequentially through the rear end hole 2, the through hole 4-1 in the airflow baffle 4, and the ash inlet pipe 1, with the dust collection tank 10 hanging on the drill bit 30-1. Because the dust collection tank 10 is made of lightweight material, its overall weight is relatively light, allowing it to be easily hung on the drill bit 30-1 without affecting the normal operation of the drill bit 30-1.
[0037] Reference Figure 3When drill bit 30-1 drills into wall 40, the soft pad ring 6 at the front end of ash inlet pipe 1 adheres tightly to wall 40, thus sealing the opening to prevent dust from escaping. The dust A and airflow B generated by drilling enter the inner cavity of dust collection tank 10 through ash inlet pipe 1. Under the action of airflow baffle 4, airflow B carrying dust A falls to the bottom of dust collection tank 10. When airflow B carrying dust A falls to the bottom of dust collection tank 10, dust A remains on the bottom of dust collection tank 10, while airflow B flows upward in the opposite direction and flows towards the pressure balance port 3 through airflow baffle 4, and finally exits from the pressure balance port 3. Since airflow B still carries a small amount of dust A, the dust settles down again under the obstruction of the aforementioned airflow channels 4-2, while airflow B without dust A flows towards the pressure balance port 3 and finally exits from the pressure balance port 3. The filter screen 7 set at the pressure balance port 3 further filters out dust particles.
[0038] In addition, for airflows carrying dust, airflow baffles and guide channels allow the heavier dust to sink under the influence of gravity. For the chaotic airflow and sudden pressure changes in the dust collection tank caused by the impact drill during operation, the PET material tank itself deforms and the pressure stabilizing effect of the pressure balance port keeps the air pressure in the collection tank stable, preventing dust from being unable to sink due to the chaotic airflow.
[0039] The functions of each part in this embodiment are as follows:
[0040] (1) Ash inlet pipe 1, with a soft pad ring 6 at the front end of the ash inlet pipe 1. The soft pad ring 6 is the part of the entire dust collector 10 that contacts the wall 40. The soft pad ring 6 has a function similar to a soft suction cup, which can fit the wall 40 and has a certain ability to adsorb the wall, reducing dust escape.
[0041] (2) Dust collection tank 10: Its main function is to collect dust. It is equipped with a movable bottom cover 5 and a switch latch 5-1 at the bottom. The bottom cover 5 can be opened through the latch 5-1 and the dust can be collected and discharged.
[0042] (3) Front support frame 1-1 and rear support frame 2-1: The arc-shaped iron sheet contacts the impact drill bit to support the entire dust collection tank.
[0043] (4) Airflow baffle 4: The airflow baffle 4 is provided with an airflow guide groove 4-2, which blocks and guides the airflow so that the dust sinks to the bottom of the dust collection tank 10.
[0044] (5) Pressure balancing port 3: During the drilling process of the impact drill, the airflow inside the dust collection tank is chaotic, and the internal air pressure fluctuates. By setting a pressure balancing port at the top of the dust collection tank, the air pressure inside the collection tank can be kept stable, avoiding the dust from being difficult to settle due to the chaotic airflow. At the same time, a filter screen is set to prevent dust from overflowing.
[0045] Other specific embodiments:
[0046] Other specific embodiments of this utility model have the following features:
[0047] The filter screen 7 located at the air pressure balance port 3 is omitted; or the several airflow grooves 4-2 located on the bottom surface of the airflow baffle 4 are omitted; the dust collection tank 10 is a cubic, rectangular cubic, cylindrical, or square lightweight structure. When the dust collection tank 10 is cylindrical, its diameter is 10-50cm. The rest is the same as in specific embodiment 1.
[0048] This utility model has the following features: 1. It avoids dust pollution of the environment and harm to human health. 2. The lightweight dust collection can is easy to use with an impact drill during drilling to collect dust. 3. It avoids dust pollution of the environment and harm to human health. 4. It is lightweight and convenient, allowing the entire dust collector to be easily and stably hung on the impact drill bit. 5. The airflow baffle and guide groove facilitate the rapid settling of dust. 6. The canister itself has deformability, and with the addition of an air pressure balance port, the air pressure inside the collection canister remains stable.
Claims
1. A drilling dust collector comprising a dust collection tank (10), characterized by: The dust collecting tank (10) is provided with an ash inlet pipe (1) in front, a rear end hole (2) in back, and an air pressure balance hole (3) in the upper part of the back; dust is introduced into the dust collecting tank (10) through the ash inlet pipe (1), and the air pressure in the dust collecting tank (10) is balanced through the air pressure balance hole (3); an airflow baffle (4) is arranged in the inner cavity of the dust collecting tank (10), the airflow baffle (4) is of an inclined structure, and the upwardly inclined surface faces the direction of the ash inlet pipe (1); a through hole (4-1) is arranged in the airflow baffle (4) to facilitate the passage of a drill bit; an airflow guide groove is arranged on the airflow baffle (4) to make dust sink to the bottom of the dust collecting tank (4) by blocking and guiding the airflow; an opening is arranged on the bottom surface of the dust collecting tank (10), and a movable bottom cover (5) is arranged at the opening to make the bottom surface of the dust collecting tank (10) in a closed or open state; a front end support (1-1) is arranged in the inner cavity of the rear end of the ash inlet pipe (1), and a rear end support (2-1) is arranged at the rear end hole (2) to form a support structure of the dust collecting tank (10) in a use state; and the dust collecting tank (10) is of a light structure.
2. A bore dust collector according to claim 1, characterised in that: A soft pad ring (6) is arranged at the front end of the ash inlet pipe (1) to contact the wall body and form a structure similar to a soft suction cup.
3. A bore dust collector according to claim 1, characterised in that: The movable bottom cover (5) is connected to the bottom side wall of the dust collecting tank (10) through a switch card hole (5-1) to form a movable connection structure.
4. A bore dust collector according to claim 1, characterised in that: The front end support (1-1) is formed of an arc-shaped iron sheet structure fixedly connected to the inner cavity of the ash inlet pipe (1), and the rear end support (2-1) is formed of an arc-shaped iron sheet structure fixedly connected to the rear end hole (2) to form a support structure of the dust collecting tank by contacting a drill bit of a percussion drill.
5. A bore dust collector according to claim 1, characterised in that: A filter screen (7) is arranged at the air pressure balance hole (3) to prevent dust from overflowing; the air pressure balance hole (3) is arranged on the upper part of the dust collecting tank to keep the air pressure in the collecting tank stable and prevent dust from sinking due to airflow disorder.
6. A bore dust collector according to claim 1, characterised in that: The dust collecting tank (10) is of a light structure formed by injection molding.
7. A bore dust collector according to claim 6, characterised in that: The dust collecting tank (10) is of a light structure formed by injection molding, such as a cubic body, an elongated cubic body, a cylindrical body, or a square cylindrical body.