A tool for knocking on the roof and sides of a tunnel

Abstract

The utility model relates to the technical field of roadway operation discloses a kind of knock help ask top tool suitable for roadway excavation, including outer pole, the outer pole right side thread connection has movable rod, the movable rod inside slide connection has gun nail, the gun nail left side fixedly connected has lock, the lock outside slide connection has excitation rod, the lock left side slide connection has movable block, the movable block left side slide connection has telescopic cylinder, the telescopic cylinder left end outside slide connection has buffer cylinder, the buffer cylinder left side fixedly connected has fixed plate, the fixed plate outside fixed connection in outer pole inside. In the utility model, it is by pressing excitation rod around rotating shaft to drive lock to remove the location of gun nail, make high-pressure spring release elastic potential, promote gun nail along movable rod fast movement and launch, and can be adjusted overall length by telescopic buckle and the engagement of extension rod, realize the knock help ask top operation of roadway surrounding rock.

Description

Technical Field

[0001] This utility model relates to the field of tunnel operation technology, and in particular to a tool for tapping the sides and roof of tunnels for tunnel excavation. Background Technology

[0002] In tunnel excavation operations, the stability of the surrounding rock is directly related to construction safety, and knocking on the roof and walls is a key procedure for checking for loose rock blocks in the roof and walls, and is a core link in preventing accidents such as roof falls and wall spalling.

[0003] The traditional tools currently used for sounding the roof and walls are mostly simple steel chisels or crowbars, which rely on manual hammering and prying. This is not only labor-intensive, but also limited by the length of the tools and the angle of operation, making it difficult to cover complex areas such as high roofs and deep alleys, resulting in blind spots in detection.

[0004] While the traditional rock-breaking and roof-finding tools currently in use can be used to investigate simple accidents, they cannot provide adjustable length or allow for the removal of loose rock walls without manual prying. Therefore, a new rock-breaking and roof-finding tool suitable for tunnel excavation is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tool for knocking on the sides and roof of tunnels, which aims to improve the problems of long-term manual removal of loose rock layers and the inability to remove loose rock layers at high altitudes in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tool for probing the roof and walls of tunnels includes an outer rod, a movable rod threadedly connected to the right side of the outer rod, a nail slidably connected to the inner side of the movable rod, a locking device fixedly connected to the left side of the nail, an activation rod slidably connected to the outer side of the locking device, a movable block slidably connected to the left side of the locking device, a telescopic cylinder slidably connected to the left side of the movable block, a buffer cylinder slidably connected to the outer side of the left end of the telescopic cylinder, a fixed plate fixedly connected to the left side of the buffer cylinder, a fixed plate fixedly connected to the inner side of the outer rod, a high-pressure spring fixedly connected to the right side of the fixed plate, and a high-pressure spring slidably connected to the left side of the movable block.

[0008] As a further description of the above technical solution:

[0009] An extension rod is slidably connected to the outer side of the left end of the outer rod. Telescopic buckles are slidably connected to the top and bottom sides of the extension rod. A base plate is fixedly connected to the inner side of the telescopic buckle. A telescopic rod is fixedly connected to the inner side of the base plate. A compression spring is fixedly connected to the bottom side of the base plate.

[0010] As a further description of the above technical solution:

[0011] The extension rod has multiple evenly distributed fixing slots on its outer side, and the telescopic buckle is slidably connected to the inner side of the fixing slots.

[0012] As a further description of the above technical solution:

[0013] A fixing ring is slidably connected to the outer side of the movable block, and the fixing ring is fixedly connected to the inner side of the outer rod.

[0014] As a further description of the above technical solution:

[0015] A clamping plate is fixedly connected to the bottom side of the fixing ring, and a rotating shaft is rotatably connected to the inner side of the clamping plate;

[0016] As a further description of the above technical solution:

[0017] The outer side of the rotating shaft is fixedly connected to the inner side of the excitation rod, and the top side of the excitation rod is slidably connected to the bottom side of the outer rod;

[0018] As a further description of the above technical solution:

[0019] The top side of the movable rod is slidably connected to a top cover, and the right side of the gun nail abuts against the left side of the top cover;

[0020] As a further description of the above technical solution:

[0021] The bottom side of the outer rod is provided with a sliding groove, and the top side of the excitation rod is slidably connected to the inside of the sliding groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the trigger rod and locking structure drive the nail and high-pressure spring structure to work, thereby causing the locking to release the nail from its limit, thus achieving the effect of rapid firing of the nail under the action of the high-pressure spring.

[0024] 2. In this utility model, the telescopic buckle and extension rod structure drive the outer rod length adjustment structure to work, thereby achieving the effect of adapting to different tunnel spaces. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a tool for probing the roof and sides of tunnels, which is applicable to tunnel excavation according to this utility model.

[0026] Figure 2 This is a schematic diagram of the buffer cylinder of a tool for testing the roof and sides of tunnels, which is proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the fixing ring of a tool for tapping the roof and sides of tunnels, which is applicable to tunnel excavation according to this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of a nail gun used in a tool for tapping the sides and roof of a tunnel, which is applicable to tunnel excavation, according to the present invention.

[0029] Figure 5 This is a schematic diagram of the base plate of a tool for probing the roof and sides of tunnels, which is proposed in this utility model.

[0030] Legend:

[0031] 1. Outer rod; 2. Movable rod; 3. Extension rod; 4. Actuation rod; 5. Base plate; 6. Telescopic rod; 7. Compression spring; 8. Telescopic buckle; 9. Fixing ring; 10. Movable block; 11. Buffer cylinder; 12. Telescopic cylinder; 13. High-pressure spring; 14. Fixing plate; 15. Lock; 16. Nail; 17. Rotating shaft; 18. Clamping plate; 19. Top cover. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-3This utility model provides an embodiment of a tool for testing the roof and walls of tunnels, comprising an outer rod 1, which serves as the main support structure of the tool. Its inner side provides installation space for various core components. A movable rod 2 is threadedly connected to the right side of the outer rod 1, and its inner side provides a sliding channel for a nail 16, ensuring that the nail 16 moves in a straight line during firing. The nail 16 is slidably connected to the inner side of the movable rod 2, and moves rapidly to the right and is fired under the drive of a high-pressure spring 13. By impacting the roof and walls of the tunnel, the impact feedback determines whether the rock is loose. This is the core actuator for achieving the function of testing the roof and walls. The nail 16 is fixedly connected to a locking mechanism 15 on its left side. In the unactivated state, this mechanism limits the movement of the nail 16, preventing accidental firing by the high-pressure spring 13. When the firing lever 4 is operated, the locking mechanism 15 releases its limit, allowing the nail 16 to fire under the action of the high-pressure spring 13. This is the control component for firing the nail 16. The firing lever 4 is slidably connected to the outside of the locking mechanism 15. Pressing the lever 4 by the operator releases the locking mechanism 15 from its limit on the nail 16, making it the core operating component for triggering the firing of the nail 16. A movable block 10 is slidably connected to the left side of the locking mechanism 15. Under the elastic force of the high-pressure spring 13, the block moves to the right, pushing... The movement of the locking mechanism 15 and the nail 16 is a key component for transmitting the elastic force of the high-pressure spring 13. Their stability directly affects the firing effect of the nail 16. A telescopic cylinder 12 is slidably connected to the left side of the movable block 10, working in conjunction with the buffer cylinder 11 to achieve a buffering function. It also provides auxiliary guidance for the movement of the movable block 10, enhancing its stability. The buffer cylinder 11 is slidably connected to the outer left end of the telescopic cylinder 12. The relative sliding between the two generates a buffering effect, mitigating the impact force when the high-pressure spring 13 resets, reducing tool vibration, protecting components, and improving operational comfort. A fixed connection is made to the left side of the buffer cylinder 11. The fixed plate 14 serves as the mounting base for the high-pressure spring 13 and the buffer cylinder 11, stably connecting them to the inner side of the outer rod 1. This ensures the relative positions of the components are fixed, guaranteeing the stable realization of power transmission and buffering functions. The outer side of the fixed plate 14 is fixedly connected to the inner side of the outer rod 1. The high-pressure spring 13 is fixedly connected to the right side of the fixed plate 14, serving as the power source for the firing of the nail 16. By pre-compressing and storing elastic potential energy, when the lock 15 releases the restriction on the nail 16, the elastic potential energy is released, pushing the movable block 10 and the nail 16 to move rapidly to the right, thus launching the nail 16. The right side of the high-pressure spring 13 is slidably connected to the left side of the movable block 10.

[0034] Reference Figure 1 and Figure 5An extension rod 3 is slidably connected to the outer left end of the outer rod 1. The extension rod 3 is used in conjunction with a telescopic buckle 8 to fix different extension lengths to adapt to different heights and depths of tunnel operations and meet diverse needs for roof and side impact checks. The extension rod 3 is slidably connected to both the top and bottom sides with telescopic buckles 8 to fix and adjust the relative position of the extension rod 3 and the outer rod 1. This is a key component for length adjustment. A base plate 5 is fixedly connected to the inner side of the telescopic buckle 8 to transfer the external force on the telescopic buckle 8 to the telescopic rod 6 and the compression spring 7. The telescopic characteristics of both enable the elastic movement of the telescopic buckle 8, ensuring the stable engagement and disengagement of the telescopic buckle 8 and the fixing groove of the extension rod 3. The telescopic rod 6 is fixedly connected to the inner side of the base plate 5 to prevent the compression spring 7 from shifting under force, ensuring that the telescopic buckle 8 can accurately engage or disengage from the fixing groove of the extension rod 3. A compression spring 7 is fixedly connected to the bottom side of the base plate 5. After the external force disappears, the compression spring 7 returns to its original position, pushing the telescopic buckle 8 to re-engage into the fixing groove, thus fixing the length of the extension rod 3.

[0035] Reference Figures 1-5 The extension rod 3 has multiple evenly distributed fixing slots on its outer side. The telescopic buckle 8 is slidably connected to the inner side of the fixing slots. The movable block 10 is slidably connected to the outer side of the fixing ring 9, ensuring that the movable block 10 drives the nail 16 to move stably. At the same time, the bottom side is fixedly connected to the clamping plate 18, providing installation support for the rotating shaft 17. The outer side of the fixing ring 9 is fixedly connected to the inner side of the outer rod 1, and the bottom side of the fixing ring 9 is fixedly connected to the clamping plate 18, which clamps and fixes the rotating shaft 17, ensuring the installation stability of the rotating shaft 17 and making the rotation operation of the excitation rod 4 more reliable. The inner side of the clamping plate 18 is rotatably connected to the rotating shaft 17, allowing the excitation rod 4 to rotate around it. The smoothness of the rotation of the locking 15 directly affects the operating sensitivity of the trigger rod 4. The outer side of the rotating shaft 17 is fixedly connected to the inner side of the trigger rod 4. The top side of the trigger rod 4 is slidably connected to the bottom side of the outer rod 1. The top side of the movable rod 2 is slidably connected to the top cover 19, which provides a limiting protection for the nail 16 when it is not fired, preventing the nail 16 from sliding out from the right side of the movable rod 2. At the same time, during the firing of the nail 16, it can be easily reset after the nail 16 is ejected, which is convenient for the next installation and firing of the nail 16. The right side of the nail 16 abuts against the left side of the top cover 19. A sliding groove is opened on the bottom side of the outer rod 1, and the top side of the trigger rod 4 is slidably connected to the inner side of the sliding groove.

[0036] Working principle: First, the length is adjusted according to the working conditions of the tunnel. By pressing the telescopic buckle 8, it is subjected to external force, causing the base plate 5 to move inward, thereby compressing the compression spring 7. At the same time, the telescopic rod 6 retracts, causing the telescopic buckle 8 to disengage from the fixing groove on the outside of the extension rod 3. At this time, the operator can pull or push the extension rod 3 to adjust its relative position with the outer rod 1. When the appropriate length is reached, the telescopic buckle 8 is released, the compression spring 7 returns to its original position, and the base plate 5 and the telescopic buckle 8 are pushed outward. The telescopic rod 6 extends accordingly, and the telescopic buckle 8 precisely engages in the corresponding fixing groove of the extension rod 3, thereby fixing the tool length to adapt to different working scenarios.

[0037] Furthermore, the right side of the nail 16 abuts against the left side of the top cover 19, which acts as a limiting and protective element for the nail 16, preventing it from sliding out from the right side of the movable rod 2. Simultaneously, the locking mechanism 15 also limits the movement of the nail 16. The high-pressure spring 13 is in a pre-compressed state, storing elastic potential energy. The movable block 10 tends to move to the right under the force of the high-pressure spring 13, but remains stationary due to the limiting effect of the locking mechanism 15. The fixing ring 9 ensures the stability of the movable block 10, laying the foundation for the stable firing of the nail 16. The operator operates the firing rod 4. Since the firing rod 4 is rotatably connected to the clamping plate 18 via the rotating shaft 17, and the rotating shaft 17 is stably installed, the firing rod 4 can smoothly rotate around the rotating shaft 17 in the outer sliding groove. When the top side of the firing rod 4 slides, it drives the locking mechanism 15 to move, releasing the locking mechanism 15 from limiting the movement of the nail 16. At this time, the high-pressure spring 13 releases elastic potential energy, pushing the movable block 10 to move to the right. Under the guidance of the fixed ring 9, the movable block 10 stably drives the nail 16 to move quickly to the right along the sliding channel inside the movable rod 2. The right side of the nail 16 hits the top cover 19, and the top cover 19 opens under the impact force. The nail 16 is launched and hits the roof and sidewalls of the tunnel. The operator judges whether the rock is loose based on the impact feedback.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for probing the roof and sides of tunnels, comprising an outer rod (1), characterized in that: The outer rod (1) is threadedly connected to a movable rod (2) on the right side. A gun nail (16) is slidably connected to the inner side of the movable rod (2). A lock (15) is fixedly connected to the left side of the gun nail (16). An excitation rod (4) is slidably connected to the outer side of the lock (15). A movable block (10) is slidably connected to the left side of the lock (15). A telescopic cylinder (12) is slidably connected to the left side of the movable block (10). A buffer cylinder (11) is slidably connected to the outer side of the left end of the telescopic cylinder (12). A fixing plate (14) is fixedly connected to the left side of the buffer cylinder (11). The outer side of the fixing plate (14) is fixedly connected to the inner side of the outer rod (1). A high-pressure spring (13) is fixedly connected to the right side of the fixing plate (14). The right side of the high-pressure spring (13) is slidably connected to the left side of the movable block (10).

2. The tool for probing the roof and walls of tunnels according to claim 1, characterized in that: An extension rod (3) is slidably connected to the outer left end of the outer rod (1). A telescopic buckle (8) is slidably connected to the top and bottom sides of the extension rod (3). A base plate (5) is fixedly connected to the inner side of the telescopic buckle (8). A telescopic rod (6) is fixedly connected to the inner side of the base plate (5). A compression spring (7) is fixedly connected to the bottom side of the base plate (5).

3. A tool for probing the roof and walls of tunnels according to claim 2, characterized in that: The extension rod (3) has multiple evenly distributed fixing grooves on its outer side, and the telescopic buckle (8) is slidably connected to the inner side of the fixing groove.

4. A tool for probing the roof and walls of tunnels according to claim 1, characterized in that: The movable block (10) is slidably connected to a fixing ring (9) on its outer side, and the fixing ring (9) is fixedly connected to the inner side of the outer rod (1) on its outer side.

5. A tool for probing the roof and walls of tunnels according to claim 4, characterized in that: The bottom side of the fixing ring (9) is fixedly connected to a clamping plate (18), and the inner side of the clamping plate (18) is rotatably connected to a rotating shaft (17).

6. A tool for probing the roof and walls of tunnels according to claim 5, characterized in that: The outer side of the rotating shaft (17) is fixedly connected to the inner side of the excitation rod (4), and the top side of the excitation rod (4) is slidably connected to the bottom side of the outer rod (1).

7. A tool for probing the roof and walls of tunnels according to claim 1, characterized in that: The top of the movable rod (2) is slidably connected to the top cover (19), and the right side of the gun nail (16) abuts against the left side of the top cover (19).

8. A tool for probing the roof and walls of tunnels according to claim 1, characterized in that: The bottom side of the outer rod (1) is provided with a sliding groove, and the top side of the excitation rod (4) is slidably connected to the inside of the sliding groove.

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