Integrated down-the-hole drill protection device
By installing protective and spraying mechanisms on the down-the-hole drill rig, the problem of protecting against gravel and dust during drilling was solved, achieving safe and efficient drilling operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-13
AI Technical Summary
Existing integrated down-the-hole drilling rigs offer limited protection during drilling, making it difficult to effectively remove gravel and dust, thus affecting construction safety.
An integrated down-the-hole drill rig protection device was designed, including a protection mechanism and a spraying mechanism. The protection mechanism blocks debris through the mounting shell and protective shell, while the spraying mechanism sprays water mist through water mist nozzles to prevent dust from flying.
It effectively prevents debris from flying during drilling, reduces dust, and improves construction safety and efficiency.
Smart Images

Figure CN223991726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of down-the-hole drilling equipment, and in particular to an integrated down-the-hole drilling rig protective device. Background Technology
[0002] Down-the-hole (DH) drilling rigs are commonly used in the construction of anchor bolts and soil nails, and are widely applied in foundation engineering such as slope protection. Conventional DH rigs insert soil nails after drilling, followed by manual grouting. To achieve full grouting, the grouting process must be completed in the shortest possible time.
[0003] A down-the-hole drill rig integrating hole forming and grouting, disclosed in announcement number CN214460319U, belongs to the technical field of down-the-hole drill equipment. Its key technical features include a spiral rod and a drive motor for rotating the spiral rod. The spiral rod includes a rod body, spiral blades fixed to the circumference of the rod body, and spikes fixed to the end of the rod body. A grouting chamber is provided inside the rod body, and several grout outlet holes communicating with the grouting chamber are provided at the end of the rod body. A grouting hose is connected to the grouting chamber, and the grouting hose is connected to a grouting pump. This invention allows for simultaneous grouting during hole forming, is convenient to operate, has high construction efficiency, and can perform high-quality grouting. However, the above-mentioned device has limited protective effect during use, making it difficult to remove gravel and dust generated during construction, thus affecting safety. Therefore, it is necessary to improve the protective device of the integrated down-the-hole drill rig to solve the above technical problems. Utility Model Content
[0004] The purpose of this invention is to improve the integrated down-the-hole drill rig protection device to overcome the above-mentioned shortcomings in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an integrated down-the-hole drill rig protection device, comprising: a mounting beam, a mounting seat slidably mounted on the left outer surface of the mounting beam, a drive motor mounted in the middle of the upper surface of the mounting seat, a threaded rod connected to the power output end of the drive motor, and a drill bit mounted on the other end of the threaded rod;
[0006] An adjustment mechanism is installed at the rear end of the upper surface of the mounting base. A protective mechanism is sleeved on the right outer surface of the threaded rod. A spraying mechanism is installed on the right outer surface of the protective mechanism. The adjustment mechanism facilitates adjustment as the threaded rod rotates, allowing the protective mechanism to follow the threaded rod during drilling. This ensures the protective mechanism can be used while drilling with the threaded rod. The protective mechanism helps to block debris generated during drilling. The spraying mechanism allows water mist to be sprayed during drilling to prevent dust particles from flying away.
[0007] As a further description of the above technical solution: the adjustment mechanism includes a fixed plate mounted on a mounting base, a threaded rod rotatably connected to the upper end of the fixed plate, a threaded sleeve sleeved on the right side of the threaded rod, connecting frames fixedly connected to the front and rear ends of the protective mechanism, a limit rod fixedly connected to the bottom of the connecting frame, and the left side of the rear end of the connecting frame fixedly connected to the threaded sleeve. By providing the threaded rod, when the threaded rod rotates, it drives the threaded sleeve to move, which facilitates adjustment when drilling with the threaded rod body, ensuring the limited protective use of the protective mechanism. By providing the connecting frame and the limit rod, it is convenient to install and fix the protective mechanism for use.
[0008] As a further description of the above technical solution: a transmission belt is sleeved on the left side of the threaded rod, and the other end of the transmission belt is sleeved on the threaded rod. By providing the transmission belt, it is convenient to transmit the kinetic energy of the drive motor, and to facilitate the adjustment of the protection mechanism as the threaded rod rotates.
[0009] As a further description of the above technical solution: the threaded rod is adapted to the threaded sleeve, the bottom of the limiting rod is connected to a slider, the mounting beam has a sliding groove adapted to the slider, the limiting rod and the mounting beam form a sliding connection mechanism, and the sliding connection mechanism formed by the limiting rod and the mounting beam facilitates the installation of the protective mechanism without affecting its movement and use.
[0010] As a further description of the above technical solution: the protective mechanism includes a mounting shell sleeved on the threaded rod body. Connecting rods are installed at the four corners of the outer surface of the mounting shell, and the mounting shell has mounting grooves adapted to the connecting rods. A spring is sleeved on the outer surface of the connecting rod. A protective shell is installed on the right side of the mounting shell. Connecting blocks are fixedly connected to the four corners of the inner wall of the protective shell. The mounting shell and the protective shell facilitate the blocking of debris generated during drilling. The protective shell is installed by the mounting shell in conjunction with the spring. The mounting shell and the protective shell are sleeved on the outside of the drill bit of the horizontal directional drilling machine, which can block the debris generated during drilling, prevent debris from splashing and affecting the workers, and improve the protective effectiveness of the device during use. By setting the connecting rods, springs and connecting blocks, it is easy to elastically install the protective shell on the mounting shell, so as to avoid vibration of the threaded rod body when drilling the ground, which would affect the protective effect of the mounting shell.
[0011] As a further description of the above technical solution: the connecting block has a sliding groove adapted to the connecting rod, and the connecting block is slidably installed on the connecting rod. By sliding the connecting block on the connecting rod, the protective shell can be adjusted and used on the mounting shell.
[0012] As a further description of the above technical solution: the spraying mechanism includes a water pipe sleeved on the outer surface of the protective mechanism. Branch pipes are fixedly connected to the four corners of the outer surface of the water pipe. A placement plate is installed on the right side of the branch pipe and is fixedly connected to the protective mechanism. Two sets of water mist nozzles are installed on the right side of the branch pipe, and the water mist nozzles penetrate the placement plate. A water inlet pipe is inserted above the rear end of the water pipe. When the down-the-hole drill is drilling, the water source is connected to the water inlet pipe, and water is injected into the water mist nozzles on the branch pipe through the water pipe. The water mist is sprayed through the water mist nozzles. At the same time as drilling, the water mist is used to spray the flying dust particles, making it difficult for them to fly, thus achieving the effect of preventing dust from flying to a certain extent.
[0013] This invention improves the integrated down-the-hole drill rig protection device. It has the following beneficial effects:
[0014] 1. By setting up a protective mechanism, with a mounting shell and a protective shell, it is easy to block the debris generated during the drilling process. The mounting shell and the protective shell are installed in conjunction with the spring. The mounting shell and the protective shell are sleeved on the outside of the drill bit of the horizontal directional drilling machine, which can block the debris generated during the drilling process, prevent the debris from splashing and affecting the workers, and improve the protective effectiveness of this device when in use.
[0015] 2. By setting up a spraying mechanism, when the down-the-hole drill is drilling, the water source is connected to the water inlet pipe, and water is injected into the water mist nozzles on the branch pipe through the water pipe. The water mist is sprayed through the water mist nozzles, and the water mist sprays the flying dust particles while drilling, making it difficult for them to fly, thus achieving the effect of preventing dust from flying to a certain extent. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the integrated down-the-hole drill protection device proposed in this utility model;
[0017] Figure 2 This is a structural diagram showing the disassembled components of this utility model;
[0018] Figure 3 This is a schematic diagram of the protective mechanism in this utility model;
[0019] Figure 4 This is a schematic diagram of the spraying mechanism in this utility model.
[0020] Legend:
[0021] 1. Mounting beam; 2. Mounting base; 3. Drive motor; 4. Threaded rod; 5. Drill bit; 6. Adjustment mechanism; 601. Fixing plate; 602. Threaded rod; 603. Threaded sleeve; 604. Connecting frame; 605. Limiting rod; 606. Transmission belt; 7. Protective mechanism; 701. Mounting shell; 702. Connecting rod; 703. Spring; 704. Protective shell; 705. Connecting block; 8. Spraying mechanism; 801. Water pipe; 802. Branch pipe; 803. Placement plate; 804. Water mist nozzle; 805. Water inlet pipe. Detailed Implementation
[0022] 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.
[0023] Example 1, Reference Figure 1 and Figure 2 This utility model discloses an integrated down-the-hole drill rig protection device, which can solve the problem that the existing device has limited protection effect during use and is difficult to remove the gravel and dust generated during construction, thus affecting the safety of construction. It includes a mounting beam 1, a mounting seat 2 slidably mounted on the left outer surface of the mounting beam 1, a drive motor 3 mounted in the middle of the upper surface of the mounting seat 2, a threaded rod 4 connected to the power output end of the drive motor 3, and a drill bit 5 mounted on the other end of the threaded rod 4.
[0024] Adjustment mechanism 6 is installed on the rear end of the upper surface of mounting base 2. Protective mechanism 7 is sleeved on the right outer surface of threaded rod body 4. Spraying mechanism 8 is installed on the right outer surface of protective mechanism 7.
[0025] Working principle: Mounting beam 1 facilitates the installation and use of components; mounting base 2 facilitates the adjustment of the threaded rod 4 and drill bit 5 on the drive motor 3; drive motor 3 facilitates the rotation of the threaded rod 4; threaded rod 4 and drill bit 5 facilitate the drilling of the device; adjustment mechanism 6 facilitates adjustment as it rotates with the threaded rod 4; and protective mechanism 7 is adjusted to follow the threaded rod 4 during drilling, ensuring its operation. Protective mechanism 7 helps to block debris generated during drilling; spraying mechanism 8 uses water mist to spray away flying dust particles during drilling, making them difficult to disperse.
[0026] Example 2, refer to Figure 2 , Figure 3 and Figure 4This embodiment addresses the problem that existing devices have limited protective effects and are unable to effectively remove gravel and dust generated during construction, thus affecting safety. The integrated down-the-hole drill rig protective device further includes an adjustment mechanism 6 comprising a fixed plate 601 mounted on a mounting base 2. A threaded rod 602 is rotatably connected to the upper end of the fixed plate 601. A threaded sleeve 603 is fitted onto the right side of the threaded rod 602. Connecting frames 604 are fixedly connected to the front and rear ends of the protective mechanism 7. A limiting rod 605 is fixedly connected to the bottom of the connecting frame 604. The left side of the rear connecting frame 604 is fixedly connected to the threaded sleeve 603. A transmission belt 606 is fitted onto the left side of the threaded rod 4, and the other end of the transmission belt 606 is fitted onto the threaded rod 602. The threaded rod 602 and the threaded sleeve 603 are compatible. A slider is connected to the bottom of the limiting rod 605. A groove adapted to the slider is provided on the mounting beam 1. The limiting rod 605 and the mounting beam 1 form a sliding connection. The protective mechanism 7 includes a mounting shell 701 fitted onto the threaded rod body 4. Connecting rods 702 are mounted at the four corners of the outer surface of the mounting shell 701, and the mounting shell 701 has mounting grooves adapted to the connecting rods 702. A spring 703 is fitted onto the outer surface of the connecting rods 702. A protective shell 704 is mounted on the right side of the mounting shell 701. Connecting blocks 705 are fixedly connected to the four corners of the inner wall of the protective shell 704. The connecting blocks 705 have sliding grooves adapted to the connecting rods 702. 705 is slidably mounted on the connecting rod 702. The spraying mechanism 8 includes a water pipe 801 sleeved on the outer surface of the protective mechanism 7. Branch pipes 802 are fixedly connected to the four corners of the outer surface of the water pipe 801. A placement plate 803 is placed on the right side of the branch pipe 802 and is fixedly connected to the protective mechanism 7. Two sets of water mist nozzles 804 are installed on the right side of the branch pipe 802 and the water mist nozzles 804 penetrate the placement plate 803. An inlet pipe 805 is inserted above the rear end of the water pipe 801.
[0027] Working principle: After the device is moved to the appropriate position, the drive motor 3 is turned on, which facilitates the rotation of the threaded rod 4 and the drill bit 5, enabling the device to drill. Simultaneously, the device drives the transmission belt 606 to rotate, causing the threaded rod 602 to rotate at the same time. When the threaded rod 602 rotates, it drives the threaded sleeve 603 to move, allowing for adjustment as it follows the threaded rod 4 during drilling. This ensures the limited protective function of the protective mechanism 7. The mounting shell 701 and the protective shell 704 effectively block debris generated during drilling. The mounting shell 701, in conjunction with the spring 703, protects the protective shell. The installation of the housing 704 and the protective housing 704 are fitted onto the outside of the drill bit 5 of the horizontal directional drilling rig. This can block the debris generated during drilling, preventing debris from splashing and affecting the workers, thus improving the effectiveness of the protection during use. When the down-the-hole drill is drilling, the water source is connected to the water inlet pipe 805, and water is injected into the water mist nozzle 804 on the branch pipe 802 through the water pipe 801. The water mist is sprayed through the water mist nozzle 804, and the water mist sprays the flying dust particles while drilling, making it difficult for them to fly, thus achieving the effect of preventing dust from flying to a certain extent.
[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An integrated roof bolting guard characterised in that, Include: The left side of the installation beam (1) is slidingly installed with a mounting seat (2), the upper surface of the mounting seat (2) is installed with a driving motor (3), the power output end of the driving motor (3) is connected with a threaded rod body (4), the other end of the threaded rod body (4) is installed with a drill bit (5); Adjusting mechanism (6), the upper surface of the mounting seat (2) is installed with adjusting mechanism (6), the right side of the threaded rod body (4) is sleeved with a protection mechanism (7), the right side of the protection mechanism (7) is installed with a spraying mechanism (8).
2. The integrated roof bolting device of claim 1, wherein, The adjusting mechanism (6) includes a fixed plate (601) installed on the mounting seat (2), the upper end of the fixed plate (601) is rotatably connected with a threaded rod (602), the right side of the threaded rod (602) is sleeved with a threaded sleeve (603), the front and rear ends of the protection mechanism (7) are fixedly connected with a connecting frame (604), the bottom of the connecting frame (604) is fixedly connected with a limiting rod (605), and the left side of the rear end of the connecting frame (604) is fixedly connected on the threaded sleeve (603).
3. The integrated roofbolter guard of claim 2, wherein, The left side of the threaded rod body (4) is sleeved with a transmission belt (606), and the other end of the transmission belt (606) is sleeved on the threaded rod (602).
4. The integrated roof bolting device of claim 2, wherein, The threaded rod (602) is matched with the threaded sleeve (603), the bottom of the limiting rod (605) is connected with a sliding block, the installation beam (1) is provided with a sliding groove matched with the sliding block, and the limiting rod (605) and the installation beam (1) form a sliding connection mechanism.
5. The integrated roof bolting device of claim 1, wherein, The protection mechanism (7) includes a mounting shell (701) sleeved on the threaded rod body (4), connecting rods (702) are installed on the outer surface of the mounting shell (701) at four corners, and the mounting shell (701) is provided with mounting grooves matched with the connecting rods (702), the outer surface of the connecting rod (702) is sleeved with a spring (703), the right side of the mounting shell (701) is provided with a protection shell (704), and the inner wall of the protection shell (704) is fixedly connected with connecting blocks (705) at four corners.
6. The integrated roof bolting device of claim 5, wherein, The connecting block (705) is provided with a sliding groove matched with the connecting rod (702), and the connecting block (705) is slidingly installed on the connecting rod (702).
7. The integrated roofbolter guard of claim 1, wherein, The spraying mechanism (8) includes a water pipe (801) sleeved on the outer surface of the protection mechanism (7), the outer surface of the water pipe (801) is fixedly connected with branch pipes (802) at four corners, the right side of the branch pipe (802) is provided with a placing plate (803), and the placing plate (803) is fixedly connected on the protection mechanism (7), two groups of water mist nozzles (804) are installed on the right side of the branch pipe (802), and the water mist nozzles (804) penetrate the placing plate (803), and a water inlet pipe (805) is inserted into the rear end of the water pipe (801).
Citation Information
Patent Citations
Hole-forming and grouting integrated down-the-hole drill
CN214460319U