Locking device

Abstract

The utility model provides a locking device, which comprises a main body rod extending along the transverse direction; the receiving head is arranged at the front end of the main body rod and used for being inserted into a drill hole of a roadway, a receiving hole is formed in the front end of the receiving head, and the section of the receiving hole is gradually reduced in the direction from the front end to the rear end of the receiving head; the first support is connected to the lower portion of the main body rod, and the first support is used for being supported between the main body rod and the bottom wall of the roadway; the second support is connected to the rear end of the main body rod, and the second support is used for being supported between the main body rod and the side wall of the roadway. According to the technical scheme, the problem that in the related technology, the blasting tube flies out and threatens the personal safety of operators can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration, and more specifically, to a locking device. Background Technology

[0002] In recent years, carbon dioxide seismic sources have been found to be more suitable for underground seismic channel wave exploration than traditional seismic sources. Liquid carbon dioxide in a storage pipe is heated by a heating rod, and the temperature rises continuously until it reaches the supercritical point of carbon dioxide gas-liquid. After the gasification and expansion reach the shear limit strength, high-pressure gas is released instantaneously to impact the coal (rock) body and generate seismic waves for subsequent acquisition, processing and analysis of seismic channels.

[0003] Because the blasting center is close to the bottom of the hole, high-pressure gas accumulates at the bottom of the hole at the moment of blasting. In the confined space, it exerts a reverse force on the end face of the blasting tube, causing the blasting tube to fly out of the borehole instantly. This causes the blasting effect to become uncontrollable and also threatens the personal safety of the operators. Utility Model Content

[0004] The main purpose of this invention is to provide a locking device to solve the problem of rupture tubes flying out and threatening the personal safety of operators in related technologies.

[0005] To achieve the above objectives, this utility model provides a locking device, comprising: a main rod extending laterally; a receiving head disposed at the front end of the main rod and used for insertion into a borehole in a tunnel, the front end of the receiving head having a receiving hole, the cross-section of the receiving hole gradually decreasing from the front end to the rear end of the receiving head; a first support connected to the lower part of the main rod, the first support being used for support between the main rod and the bottom wall of the tunnel; and a second support connected to the rear end of the main rod, the second support being used for support between the main rod and the side wall of the tunnel.

[0006] Furthermore, the main rod is a hydraulic telescopic rod; and / or, the angle between the sidewall of the receiving hole and the axis of the main rod is greater than or equal to 10° and less than or equal to 15°.

[0007] Furthermore, the receiving head has multiple receiving claws spaced apart along the circumferential direction of the main body rod, and receiving holes are formed between the multiple receiving claws.

[0008] Furthermore, the receiver head also includes a connecting cylinder disposed between the main body rod and multiple receiving claws; and / or, the number of receiving claws is greater than or equal to 3 and less than or equal to 6.

[0009] Furthermore, the first support includes a first support platform, a first support rod disposed above the first support platform, and a collar disposed above the first support rod, the collar being fitted onto the main body rod.

[0010] Furthermore, the first support includes a rotatable connection structure, which includes a nested ball head and a ball seat. The ball head is disposed on one of the first support platform and the first support rod, and the ball seat is disposed on the other of the first support platform and the first support rod.

[0011] Furthermore, the collar and the main body rod are fitted with a clearance, and the locking device also includes a friction-reducing component disposed between the collar and the main body rod.

[0012] Furthermore, the second support includes a second support platform, a second support rod disposed on the front side of the second support platform, and a buffer pad disposed on the rear side of the second support platform; and / or, the locking device includes a plurality of first supports, which are spaced apart along the length of the main body rod.

[0013] Furthermore, the receiver head, the first support, and the second support are made of carbon fiber.

[0014] Furthermore, the locking device also includes an adjusting rod detachably disposed between the main body rod and the second support.

[0015] The locking device, employing the technical solution of this utility model, comprises a main rod and a receiving head disposed at the front end of the main rod. The receiving head can be inserted into a borehole in the tunnel and has a receiving hole. The receiving head is used to receive the blasting tube after the blasting operation, allowing the blasting tube to fly into the receiving hole. From the front end to the rear end of the receiving head, the cross-section of the receiving hole gradually decreases, achieving frictional self-locking of the blasting tube and preventing it from flying directly out of the borehole and threatening the personal safety of the operator. It also facilitates the retrieval of the blasting tube. The locking device further includes a first support and a second support for supporting the main rod. The first support is located below the main rod, keeping it at a position roughly equivalent to the borehole height. The second support is located behind the main rod and between the main rod and the side wall of the tunnel, further preventing the blasting tube from flying out. Therefore, the technical solution of this application can effectively solve the problem of blasting tubes flying out and threatening the personal safety of operators in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A perspective structural schematic diagram of an embodiment of the locking device according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 Enlarged view of point A of the locking device;

[0019] Figure 3It shows Figure 1 A cross-sectional view of the receiving head of the locking device;

[0020] Figure 4 It shows Figure 1 A cross-sectional view of the collar of the locking device;

[0021] Figure 5 It shows Figure 1 A cross-sectional view of the second support platform of the locking device;

[0022] Figure 6 It shows Figure 1 A cross-sectional view of the first support platform of the locking device;

[0023] Figure 7 The application is shown. Figure 1 A three-dimensional structural diagram of the locking device locking the rupture tube.

[0024] The above figures include the following reference numerals:

[0025] 1. Bursting tube; 101. Receiver;

[0026] 10. Main body rod;

[0027] 20. Receiver head; 21. Receiver hole; 22. Receiver claw; 23. Connecting cylinder;

[0028] 30. First support; 31. First support platform; 32. First support rod; 33. Collar; 34. Rotating connection structure; 341. Ball head; 342. Ball seat;

[0029] 40. Second support; 41. Second support platform; 42. Second support rod; 43. Buffer pad;

[0030] 50. Friction-reducing components;

[0031] a. The angle between the side wall of the receiving hole and the axis of the main rod. 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0035] like Figures 1 to 3 As shown, this application provides a locking device. An embodiment of the locking device includes: a main rod 10, a receiving head 20, a first support 30, and a second support 40. The main rod 10 extends laterally; the receiving head 20 is disposed at the front end of the main rod 10 and is used to insert into a borehole in a tunnel. The front end of the receiving head 20 has a receiving hole 21, the cross-section of which gradually decreases from the front end to the rear end of the receiving head 20; the first support 30 is connected below the main rod 10 and is used to support the main rod 10 between the bottom wall of the tunnel; the second support 40 is connected to the rear end of the main rod 10 and is used to support the main rod 10 between the side wall of the tunnel.

[0036] Applying the technical solution of this embodiment, the locking device has a main rod 10 and a receiving head 20 disposed at the front end of the main rod 10. The receiving head 20 can be inserted into the borehole of the roadway and has a receiving hole 21. The receiving head 20 is used to receive the blasting tube 1 after the blasting operation is completed, so that the blasting tube 1 flies into the receiving hole 21. In the direction from the front end to the rear end of the receiving head 20, the cross-section of the receiving hole 21 gradually decreases, realizing frictional self-locking of the blasting tube 1, preventing the blasting tube 1 from flying directly out of the borehole and threatening the personal safety of the operator, and at the same time facilitating the recovery of the blasting tube 1. The locking device also includes a first support 30 and a second support 40 for supporting the main rod 10. The first support 30 is supported below the main rod 10, keeping the main rod 10 at a position equivalent to the height of the borehole. The second support 40 is supported behind the main rod 10 and located between the main rod 10 and the side wall of the roadway, further preventing the blasting tube 1 from flying out. Therefore, the technical solution of this embodiment can effectively solve the problem of the rupture tube flying out and threatening the personal safety of operators in related technologies.

[0037] It should be noted that, in the description of this application, the term "front end" refers to the end closer to the blasting tube 1, and the term "rear end" refers to the end farther from the blasting tube 1. Specifically, during blasting, a hole needs to be drilled in the sidewall of the tunnel, and then the blasting tube is placed into the hole. The sidewall of the tunnel where the hole is drilled is called the first sidewall. The locking device is arranged along the width direction of the tunnel. The receiving head 20 extends into the hole in the first sidewall. The second support 40 is located between the main body rod 10 and the sidewall of the tunnel (the second sidewall) opposite to the first sidewall.

[0038] In this embodiment, the main rod 10 is a hydraulic telescopic rod. That is, the main rod 10 also has a certain ability to absorb impact, further ensuring the effectiveness of receiving the rupture tube 1.

[0039] like Figure 3 As shown, the included angle α between the sidewall of the receiving hole 21 and the axis of the main body rod 10 is greater than or equal to 10° and less than or equal to 15°. A larger diameter at the front end of the receiving hole 21 reduces the difficulty of aligning the explosive tube 1 with the receiving hole 21 when it flies out, ensuring effective reception. The diameter of the receiving hole 21 gradually decreases from the front end to the rear end of the receiving head 20, achieving frictional self-locking between the explosive tube 1 and the hole wall of the receiving hole 21, thereby achieving reception of the explosive tube 1. Preferably, the included angle α can be 10°, 12°, or 15°.

[0040] like Figure 7 As shown, in order to ensure the receiving effect of the blasting tube 1, the existing blasting tube 1 can be improved. Specifically, a receiving end 101 is set at the rear end of the blasting tube 1, and the outer contour of the receiving end 101 is adapted to the inner contour of the receiving hole 21.

[0041] Existing locking methods typically involve directly installing a deflector sleeve inside the borehole to confine the explosive tube within the borehole. However, the deflector sleeve's effectiveness is not ideal, and there remains a risk of the explosive tube flying out of the borehole. Furthermore, even if the explosive tube is prevented from flying out, it remains inside the borehole, making retrieval difficult. Another method is borehole sealing, which involves sealing the borehole opening with sealing material to achieve a deflector effect. However, this method is complex and also makes retrieval of the explosive tube challenging.

[0042] like Figure 1 and Figure 2 As shown, the receiving head 20 has multiple receiving claws 22 spaced apart along the circumferential direction of the main body rod 10, and receiving holes 21 are formed between the multiple receiving claws 22. There is a gap between the receiving claws 22. After the receiving of the blasting tube 1 is completed, a tool can be inserted into the gap to pry the blasting tube 1 out of the receiving head 20 for recycling, thereby realizing the recycling of the blasting tube 1.

[0043] Using the locking device of this embodiment to stop the explosive tube 1 from flying is simple: just move the locking device to the corresponding position and insert the receiving head 20 into the borehole. It also allows for the retrieval of the explosive tube 1. Furthermore, this embodiment employs a modular design, facilitating quick installation and disassembly of the locking device. When needed, the various modules can be assembled together; after use, the modules can be disassembled for easy storage of the locking device.

[0044] like Figure 2 and Figure 3 As shown, the receiving head 20 also includes a connecting cylinder 23, which is disposed between the main body rod 10 and the multiple receiving claws 22. When receiving the rupture tube 1, due to the large impact force, the receiving claws 22 will undergo slight outward deformation. The connecting cylinder 23 is disposed between the main body rod 10 and the receiving claws 22, making the deformation of the receiving claws 22 easier and preventing the receiving claws 22 from breaking, thereby ensuring the service life of the locking device.

[0045] Specifically, in this embodiment, the number of receiving claws 22 is greater than or equal to 3 and less than or equal to 6. The number of receiving claws 22 can be 3, 4, or 6.

[0046] like Figure 1As shown, the first support 30 includes a first support platform 31, a first support rod 32 disposed above the first support platform 31, and a collar 33 disposed above the first support rod 32. The collar 33 is fitted onto the main rod 10. The first support platform 31 has a frustum-shaped structure, increasing the contact area with the bottom wall of the tunnel, thereby ensuring effective support for the main rod 10. When assembling the first support 30 and the main rod 10, it is only necessary to fit the collar 33 onto the main rod 10, which has the advantage of simple operation.

[0047] like Figure 1 and Figure 6 As shown, the first support 30 includes a rotating connection structure 34, which includes a nested ball head 341 and a ball seat 342. The ball head 341 is disposed on one of the first support platform 31 and the first support rod 32, and the ball seat 342 is disposed on the other of the first support platform 31 and the first support rod 32. Since the bottom wall of the tunnel is not a perfectly flat horizontal surface, it may have a certain slope or be uneven. The rotating connection structure 34 allows the first support platform 31 and the first support rod 32 to rotate, thereby allowing the first support platform 31 to tilt to adapt to the bottom wall while the first support rod 32 remains vertical, thus ensuring that the main rod 10 is relatively horizontal. Specifically, in this embodiment, the ball head 341 is disposed at the lower end of the first support rod 32, and the ball seat 342 is disposed at the upper end of the first support platform 31.

[0048] like Figure 1 and Figure 4 As shown, the collar 33 and the main body rod 10 are fitted with a clearance fit. The locking device also includes a friction-reducing component 50 disposed between the collar 33 and the main body rod 10. When receiving the rupture tube 1, due to the large impact, the main body rod 10 may shift backward or retract. The friction-reducing component 50 can reduce the friction between the main body rod 10 and the collar 33 when the main body rod 10 moves, thereby preventing the first support 30 from being pulled down and ensuring the support effect on the main body rod 10.

[0049] Specifically, such as Figure 4 As shown, the friction-reducing component 50 is a ball bearing structure disposed on the inner surface of the collar 33. In an embodiment not shown in the figure, the friction-reducing component may also be lubricating oil or the like disposed between the collar and the main body rod.

[0050] like Figure 1 and Figure 5As shown, the second support 40 includes a second support platform 41, a second support rod 42 disposed on the front side of the second support platform 41, and a buffer pad 43 disposed on the rear side of the second support platform 41. The second support platform 41 has a frustum-shaped structure, increasing the contact area with the second sidewall and thus ensuring effective support for the main rod 10. The buffer pad 43 disposed on the rear side of the second support platform 41 prevents the second support platform 41 from directly colliding rigidly with the second sidewall when the main rod 10 moves backward due to impact.

[0051] like Figure 1 As shown, the locking device includes a plurality of first supports 30, which are spaced apart along the length of the main body rod 10. Specifically, in this embodiment, the locking device includes two first supports 30. In specific design, the number of first supports can be selected by the operator according to the width of the tunnel.

[0052] In this embodiment, the receiving head 20, the first support 30, and the second support 40 are made of carbon fiber. Carbon fiber has the advantages of being lightweight and high-strength, making it suitable for applications requiring frequent handling in tunnels and convenient for operators. It also ensures the durability of the locking device, allowing it to withstand the harsh, humid, and dusty environment of underground mines and enabling long-term stable use.

[0053] In this embodiment, the locking device also includes an adjusting rod detachably disposed between the main body rod 10 and the second support 40. The adjusting rod allows for adjustment of the overall length of the locking device to accommodate tunnels of different widths. That is, the second support 40 can be directly connected to the main body rod 10; when the tunnel width is large and the second support 40 cannot abut against the second sidewall of the tunnel, the second support 40 can be detached from the main body rod 10, one or more adjusting rods can be connected to the rear end of the main body rod 10, and then the second support 40 can be installed on the rear side of the adjusting rod at the rear end.

[0054] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A locking device, characterized in that, include: The main rod (10) extends in the lateral direction; A receiving head (20) is disposed at the front end of the main body rod (10) and is used to be inserted into a borehole in the tunnel. The front end of the receiving head (20) has a receiving hole (21), and the cross section of the receiving hole (21) gradually decreases in the direction from the front end to the rear end of the receiving head (20). A first support (30) is connected below the main rod (10) and is used to support the main rod (10) between the bottom wall of the tunnel. A second support (40) is connected to the rear end of the main rod (10) and is used to support the main rod (10) between the side wall of the tunnel.

2. The locking device according to claim 1, characterized in that, The main rod (10) is a hydraulic telescopic rod; and / or, The angle (a) between the sidewall of the receiving hole (21) and the axis of the main rod (10) is greater than or equal to 10° and less than or equal to 15°.

3. The locking device according to claim 1, characterized in that, The receiving head (20) has a plurality of receiving claws (22) spaced apart along the circumferential direction of the main body rod (10), and the receiving hole (21) is formed between the plurality of receiving claws (22).

4. The locking device according to claim 3, characterized in that, The receiving head (20) further includes a connecting cylinder (23), which is disposed between the main body rod (10) and the plurality of receiving claws (22); and / or, The number of receiving claws (22) is greater than or equal to 3 and less than or equal to 6.

5. The locking device according to any one of claims 1 to 4, characterized in that, The first support (30) includes a first support platform (31), a first support rod (32) disposed above the first support platform (31), and a collar (33) disposed above the first support rod (32), the collar (33) being sleeved on the main body rod (10).

6. The locking device according to claim 5, characterized in that, The first support (30) includes a rotating connection structure (34), which includes a nested ball head (341) and a ball seat (342). The ball head (341) is disposed on one of the first support platform (31) and the first support rod (32), and the ball seat (342) is disposed on the other of the first support platform (31) and the first support rod (32).

7. The locking device according to claim 5, characterized in that, The collar (33) is clearance-fitted with the main body rod (10), and the locking device further includes a friction-reducing component (50) disposed between the collar (33) and the main body rod (10).

8. The locking device according to any one of claims 1 to 4, characterized in that, The second support (40) includes a second support platform (41), a second support rod (42) disposed on the front side of the second support platform (41), and a buffer pad (43) disposed on the rear side of the second support platform (41); and / or, The locking device includes a plurality of first supports (30), which are spaced apart along the length of the main body rod (10).

9. The locking device according to any one of claims 1 to 4, characterized in that, The receiver head (20), the first support (30) and the second support (40) are made of carbon fiber.

10. The locking device according to any one of claims 1 to 4, characterized in that, The locking device also includes an adjusting rod detachably disposed between the main body rod (10) and the second support (40).

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