Drilling machine protection baffle with adjustable inner diameter
The adjustable inner diameter drilling rig protective baffle, which drives the inner protective plate to expand outward by rotating the screw block, solves the problems of adaptability and adjustment accuracy of traditional drilling rig protective baffles, achieves tight fit and effective dust blocking, and improves construction safety and environmental quality.
Patent Information
- Application Number
- CN202520809598.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-25
AI Technical Summary
Traditional drilling rig protective baffles have a fixed inner diameter, making it difficult to adapt to drilling rigs of different sizes. This results in large protective gaps, allowing debris to easily fly out and dust to spread easily. The operation is cumbersome and the adjustment is inaccurate. The reset stability is poor and it cannot effectively block dust, affecting construction safety and environmental quality.
The inner protective plate is expanded outward synchronously by rotating the screw block and pulling the rope. Combined with elastic elements and limiting structure, the inner diameter can be dynamically adjusted. Combined with the precise control of the visual dial, it can quickly lock and fit tightly to the drilling rig, forming a ring-shaped protective layer that elastically buffers impact and blocks dust.
This design achieves a tight fit between the protective baffle and the drilling rig, reducing protective gaps, improving adjustment accuracy, ensuring structural stability, effectively blocking gravel and dust, improving the quality of the working environment, and ensuring construction safety.
Smart Images
Figure CN223894108U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of drilling rig protection baffle, specifically, relates to a drilling rig protection baffle with adjustable inner diameter. BACKGROUND
[0002] In the tunnel construction drilling operation, the drilling rig protection baffle is the key device for preventing the flying of the gravel and the diffusion of the dust. The traditional protection baffle usually adopts the fixed inner diameter structure, which is difficult to adapt to the installation requirements of the drilling rigs of different sizes, resulting in the existence of a large gap between the protection sleeve and the drilling rig, and the flying of the gravel produced by the high-speed drilling from the gap, threatening the safety of the construction personnel.
[0003] In addition, the existing adjustable protection structure relies on manual segmented adjustment or mechanical buckle fixing, which is complicated to operate and lacks precise control. After adjustment, it is easy to deviate due to vibration, and the reset stability is poor. Although the protection devices using elastic materials can adapt to the size changes of the drilling rig, they lack rigid limiting structures, making it difficult to balance the buffering performance and the protection rigidity, and the adjustment amount cannot be intuitively monitored, making it difficult to adjust symmetrically and affecting the closure effect of the protection layer. At the same time, the drilling dust can easily diffuse through the protection gap, and the traditional baffle has low dust blocking efficiency, making it difficult to ensure the air quality of the construction environment. Therefore, in view of the above technical problems, an adjustable inner diameter drilling rig protection baffle is proposed. SUMMARY
[0004] The utility model aims at providing a drilling rig protection baffle with adjustable inner diameter, which synchronously expands the inner guard plate by rotating the twist block linkage pull rope, ensures stable rebound after expansion through the elastic element and limiting structure, accurately controls the symmetric adjustment amount through the visual scale, quickly locks to form a ring-shaped protection layer closely fitted to the drilling rig, buffers the impact and blocks the flying of the gravel through the elastic composite barrier, and suppresses the diffusion of dust, while dynamically adjusting the protection inner diameter, taking into account the construction safety and environmental maintenance.
[0005] The utility model realizes the following technical scheme:
[0006] A drilling rig protection baffle with adjustable inner diameter, comprising a protection sleeve and an inner guard plate, and the number of inner guard plates is four and is arranged in a ring shape at the inner center of the protection sleeve. A telescopic cylinder is fixedly connected between each inner guard plate and the inner side of the protection sleeve. A tightening mechanism is installed between two inner guard plates. Four inner guard plates are in abutment under the action of the tightening mechanism. Two groups of symmetrically arranged mounting seats are fixedly connected to the outside of the protection sleeve. A rotating rod is rotatably connected to the inner side of the mounting seat. A twist block is fixedly connected to the outside of the rotating rod. An expansion mechanism is installed between the rotating rod and the inner guard plate. A scale disc is fixedly connected to the outside of the mounting seat. An indicator plate is fixedly connected to the outside of the twist block. A positioning mechanism is installed between the twist block and the mounting seat.
[0007] Preferably, the telescopic cylinder is perpendicular to the protective sleeve, and the telescopic cylinder is also perpendicular to the inner protective plate.
[0008] Preferably, the tightening mechanism includes a mounting groove, a rubber plate, a slider, and a tension spring. The mounting groove is formed on one side of the inner protective plate, the rubber plate is fixedly connected to the other side of the inner protective plate, the slider is fixedly connected to the end of the rubber plate and slidably connected to the inside of the mounting groove, and the tension spring is fixedly connected to the inside of the mounting groove, with the other end of the tension spring fixedly connected to one side of the slider.
[0009] Preferably, the rubber sheet is made of an elastic rubber material.
[0010] Preferably, the expansion mechanism includes a notch, a through groove, and a pull rope. The notch is opened on both sides of the mounting base, the through groove is opened on the outside of the protective sleeve, and there are four sets of through grooves arranged in a ring. The opening position of the through groove is parallel to and corresponds to the telescopic cylinder. The pull rope is fixedly connected to the outside of the rotating rod, and the end of the pull rope is fixedly connected to the outside of the inner protective plate through the notch and the through groove.
[0011] Preferably, the dial is sleeved on the outside of the screw block, and the outside of the dial has a precise scale. The end of the indicator plate has a sharp part, and the sharp part is directly opposite the precise scale.
[0012] Preferably, the positioning mechanism includes positioning holes, a connecting plate, and fixing bolts. The positioning holes are located on the outside of the mounting base, and there are several groups of positioning holes arranged in a ring. The connecting plate is fixedly connected to the outside of the screw block, and the connecting plate and the indicator plate are symmetrically installed. The fixing bolts are threadedly connected between the connecting plate and one of the groups of positioning holes.
[0013] The technical solution of this utility model has at least the following beneficial effects:
[0014] This invention proposes an adjustable inner diameter drilling rig protective baffle. Four sets of inner protective plates expand synchronously outwards via a rotating screw block. Combined with the telescopic cylinder limit and the linkage of the elastic rubber plate, the inner diameter is dynamically adjusted to precisely adapt to different drilling rig sizes, effectively reducing the protective gap. The elastic spring provides continuous pull force during expansion, ensuring structural stability and reliable reset after adjustment, preventing vibration and deviation. A visual dial and indicator plate allow real-time monitoring of the symmetrical adjustment amount, improving operational accuracy and shortening adjustment time. The composite protective layer formed by the inner protective plates and the elastic rubber plate buffers the impact of gravel and maintains overall structural strength through rigid limiting. This dual barrier effectively blocks flying gravel and drilling dust, reducing the risk of injury to construction personnel. The tightly closed annular barrier significantly reduces dust dispersion, improving air quality in the working environment, while also reducing damage to surrounding equipment from flying gravel. This ensures operational safety and environmental cleanliness in complex construction scenarios. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 for Figure 1 Enlarged view of A in the middle;
[0017] Figure 3 This is a partial structural schematic diagram of the present invention;
[0018] Figure 4 for Figure 1 Enlarged view of B in the middle;
[0019] Figure 5 for Figure 3 Enlarged view of C in the middle;
[0020] Reference numerals: 1. Protective sleeve; 2. Inner protective plate; 3. Telescopic cylinder; 4. Mounting groove; 5. Rubber plate; 6. Slider; 7. Tension spring; 8. Mounting base; 9. Tightening block; 10. Rotating rod; 11. Notch; 12. Through groove; 13. Pull rope; 14. Dial; 15. Indicator plate; 16. Positioning hole; 17. Connecting plate; 18. Fixing bolt. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-5This utility model proposes an adjustable inner diameter drilling rig protective baffle, including a protective sleeve 1 and inner protective plates 2. The number of inner protective plates 2 is four sets, arranged in a ring and installed at the center of the inside of the protective sleeve 1. Each set of inner protective plates 2 is fixedly connected to the inner side of the protective sleeve 1 with a telescopic cylinder 3. A tightening mechanism is installed between two sets of inner protective plates 2. Under the action of the tightening mechanism, all four sets of inner protective plates 2 abut against each other. Two sets of symmetrically arranged mounting seats 8 are fixedly connected to the outside of the protective sleeve 1. A rotating rod 10 is rotatably connected to the inside of the mounting seat 8. A screw block 9 is fixedly connected to the outside of the rotating rod 10. An expansion mechanism is installed between the rotating rod 10 and the inner protective plate 2. A scale 14 is fixedly connected to the outside of the mounting seat 8. An indicator plate 15 is fixedly connected to the outside of the screw block 9. A positioning mechanism is installed between the screw block 9 and the mounting seat 8.
[0023] The telescopic cylinder 3 is perpendicular to the protective sleeve 1, and the telescopic cylinder 3 is also perpendicular to the inner protective plate 2. The telescopic cylinder 3 can provide a stable guiding effect when the inner protective plate 2 moves, ensuring that the expansion process is smooth and does not deviate.
[0024] The tightening mechanism includes a mounting groove 4, a rubber plate 5, a slider 6, and a tension spring 7. The mounting groove 4 is located on one side of the inner protective plate 2. The rubber plate 5 is fixedly connected to the other side of the inner protective plate 2. The slider 6 is fixedly connected to the end of the rubber plate 5 and is slidably connected to the inside of the mounting groove 4. The tension spring 7 is fixedly connected to the inside of the mounting groove 4, and the other end of the tension spring 7 is fixedly connected to one side of the slider 6. When expanding, the rubber plate 5 can drive the slider 6 to stretch the tension spring 7, providing a rebound force for easy reset.
[0025] The rubber sheet 5 is made of elastic rubber material, which makes it easy for the rubber sheet 5 to adapt to the expansion of the inner protective plate 2 and achieve elastic deformation for adaptive protection.
[0026] The expansion mechanism includes a notch 11, a through groove 12, and a pull rope 13. The notch 11 is opened on both sides of the mounting base 8, and the through groove 12 is opened on the outside of the protective sleeve 1. There are four sets of through grooves 12 arranged in a ring. The opening position of the through groove 12 is parallel to and corresponds to the telescopic cylinder 3. The pull rope 13 is fixedly connected to the outside of the rotating rod 10, and the end of the pull rope 13 is fixedly connected to the outside of the inner protective plate 2 through the notch 11 and the through groove 12. By rotating the screw block 9, the pull rope 13 can be tightened to drive the inner protective plate 2 to expand outward synchronously.
[0027] The dial 14 is fitted on the outside of the screw block 9, and the outside of the dial 14 has a precise scale. The end of the indicator plate 15 has a sharp part, and the sharp part is directly facing the precise scale, so that the operator can read the adjustment amount intuitively and ensure the accuracy of symmetrical adjustment.
[0028] The positioning mechanism includes positioning holes 16, connecting plates 17, and fixing bolts 18. The positioning holes 16 are located on the outside of the mounting base 8, and there are several sets of positioning holes 16 arranged in a ring. The connecting plates 17 are fixedly connected to the outside of the screw block 9, and the connecting plates 17 and the indicator plates 15 are symmetrically installed. The fixing bolts 18 are threadedly connected between the connecting plates 17 and one set of positioning holes 16. After adjustment, the position can be locked by the fixing bolts 18 to prevent loosening and displacement during operation.
[0029] The working principle of an adjustable inner diameter drilling rig protective baffle based on an embodiment is as follows: During tunnel drilling operations, the operator can drive the rotating rod 10 to rotate synchronously by rotating symmetrically distributed screw blocks 9. The pull rope 13 wrapped around the outside of the rotating rod 10 tightens accordingly, pulling four sets of annularly distributed inner protective plates 2 to expand synchronously outward along the vertical limiting direction of the telescopic cylinder 3. When the inner protective plates 2 move, the elastic rubber plates 5 fixed on their sides are pulled out from the mounting grooves 4 of the adjacent inner protective plates 2. The slider 6 connected at the end synchronously stretches the tension spring 7 in the mounting groove 4, so that the four sets of inner protective plates 2 are always subjected to elastic return force during the expansion process, ensuring the stability of the subsequent reset operation. As the inner protective plates 2 expand outward, the tip of the indicator plate 15 fixed to the outside of the screw blocks 9 moves along the rotation trajectory across the precise scale of the dial 14. The expansion displacement of the inner protective plates 2 is displayed in real time through the scale length, which facilitates the construction personnel to accurately adjust the protective inner diameter and also facilitates the control of the screw blocks on the left and right sides. The symmetry of the turning distance facilitates comparative adjustments. When the inner protective plate 2 expands to fit the drilling rig size, the rotating screw block 9 drives the connecting plate 17 to align with the annular positioning hole 16 on the outer side of the mounting base 8. The position is locked by screwing in the fixing bolt 18. At this time, the drilling rig can be installed and operated along the central area of the inner protective plate 2. The tightly fitted inner protective plate 2 forms an annular protective barrier, effectively reducing the gap between the protective sleeve 1 and the drilling rig. During the drilling process, the composite structure composed of the elastic rubber plate 5 and the inner protective plate 2 can buffer the impact kinetic energy of the crushed stone and maintain the structural rigidity through the limiting guidance of the telescopic cylinder 3. The continuous protective surface composed of the four sets of inner protective plates 2 significantly blocks the splashing crushed stone and diffused dust, which not only avoids mechanical injury to construction personnel caused by high-speed debris, but also inhibits the emission of drilling dust and ensures the air quality of the working environment. Through the combination of mechanical linkage and visual adjustment, the protective size can be dynamically adapted, taking into account both construction efficiency and safety protection requirements.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drilling rig protective baffle with adjustable inner diameter, characterized in that: The protective sleeve (1) and inner protective plate (2) are included. The number of inner protective plates (2) is four and they are arranged in a ring and installed in the center of the interior of the protective sleeve (1). Each set of inner protective plates (2) is fixedly connected to the inner side of the protective sleeve (1) with a telescopic cylinder (3). A tightening mechanism is installed between the two sets of inner protective plates (2). The four sets of inner protective plates (2) are all in contact with each other under the action of the tightening mechanism. Two sets of symmetrically arranged mounting seats (8) are fixedly connected to the outside of the protective sleeve (1). A rotating rod (10) is rotatably connected to the inside of the mounting seat (8). A screw block (9) is fixedly connected to the outside of the rotating rod (10). An expansion mechanism is installed between the rotating rod (10) and the inner protective plate (2). A scale (14) is fixedly connected to the outside of the mounting seat (8). An indicator plate (15) is fixedly connected to the outside of the screw block (9). A positioning mechanism is installed between the screw block (9) and the mounting seat (8).
2. The adjustable inner diameter drilling rig protective baffle according to claim 1, characterized in that: The telescopic cylinder (3) is perpendicular to the protective sleeve (1), and the telescopic cylinder (3) is also perpendicular to the inner protective plate (2).
3. The adjustable inner diameter drilling rig protective baffle according to claim 1, characterized in that: The tightening mechanism includes a mounting groove (4), a rubber plate (5), a slider (6), and a tension spring (7). The mounting groove (4) is opened on one side of the inner protective plate (2). The rubber plate (5) is fixedly connected to the other side of the inner protective plate (2). The slider (6) is fixedly connected to the end of the rubber plate (5) and is slidably connected to the inside of the mounting groove (4). The tension spring (7) is fixedly connected to the inside of the mounting groove (4) and the other end of the tension spring (7) is fixedly connected to one side of the slider (6).
4. The adjustable inner diameter drilling rig protective baffle according to claim 3, characterized in that: The rubber sheet (5) is made of elastic rubber material.
5. The adjustable inner diameter drilling rig protective baffle according to claim 1, characterized in that: The expansion mechanism includes a notch (11), a through groove (12), and a pull rope (13). The notch (11) is opened on both sides of the mounting base (8). The through groove (12) is opened on the outside of the protective sleeve (1). There are four sets of through grooves (12) arranged in a ring. The opening position of the through groove (12) is parallel to and corresponds to the telescopic cylinder (3). The pull rope (13) is fixedly connected to the outside of the rotating rod (10). The end of the pull rope (13) is fixedly connected to the outside of the inner protective plate (2) through the notch (11) and the through groove (12).
6. The adjustable inner diameter drilling rig protective baffle according to claim 1, characterized in that: The dial (14) is fitted on the outside of the screw block (9), and the dial (14) has a precise scale on its outside. The end of the indicator plate (15) has a sharp part, and the sharp part is directly facing the precise scale.
7. The adjustable inner diameter drilling rig protective baffle according to claim 1, characterized in that: The positioning mechanism includes positioning holes (16), connecting plates (17), and fixing bolts (18). The positioning holes (16) are located on the outside of the mounting base (8), and there are several sets of positioning holes (16) arranged in a ring. The connecting plate (17) is fixedly connected to the outside of the screw block (9), and the connecting plate (17) and the indicator plate (15) are symmetrically installed. The fixing bolts (18) are threadedly connected between the connecting plate (17) and one set of positioning holes (16).