Electric spark source cannon head sleeve protection device

Abstract

The utility model discloses an electric spark source gun head sleeve protection device which comprises a sleeve body used for being arranged outside an electric spark source gun head in a sleeving mode and a first connecting end arranged at the head position of the electric spark source gun head in advance. One end of the sleeve body is provided with a second connecting end, the other end of the sleeve body is provided with an opening and closing piece used for adding water and discharging water, and the second connecting end is used for being detachably connected with the first connecting end. The method has the advantages that the electric spark source gun head discharges stably and is not affected by water quality outside a hole, and stable signal transmission is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of geological exploration devices, and in particular to a protection device for an electric spark source gun head sleeve. Background Art

[0002] At present, electric spark source gun heads are widely used in geological exploration, prospecting or underground mapping work. Due to their convenience in use, they are widely used in the field of engineering geophysical exploration. However, for common electric spark source gun heads, their discharge heads need to be placed in water or deep holes. During the mapping operation, the electric spark source gun heads are directly in contact with the water or soil in the hole, and the blasting signal is transmitted through the conductive medium.

[0003] In practical applications, due to the unstable water quality in the hole, there are some impurities such as mud in the water at some construction sites, which will affect the conductivity. Even the mud in some deep holes can completely cover and wrap the electric spark source gun head thickly, making it unable to discharge normally, seriously interfering with the reliability of the electric spark source gun head used in geological exploration, prospecting or underground mapping work. Summary of the Utility Model

[0004] In order to make the electric spark source gun head discharge stably, not affected by the water quality outside the hole, and ensure stable signal transmission, the present application provides a protection device for an electric spark source gun head sleeve.

[0005] The protection device for an electric spark source gun head sleeve provided by the present application adopts the following technical solutions:

[0006] A protection device for an electric spark source gun head sleeve includes a sleeve body for sleeving outside the electric spark source gun head and a first connection end preset at the head position of the electric spark source gun head. One end of the sleeve body is provided with a second connection end, and the other end is provided with an opening and closing member for adding and discharging water. The second connection end is used for detachably connecting with the first connection end.

[0007] By adopting the above technical solutions, during use, the sleeve body is sleeved outside the electric spark source gun head, and the first connection end and the second connection end are connected, that is, the connection between the sleeve body and the electric spark source gun head is completed; then clean water is added into the sleeve body through the opening and closing member, so that the electric spark source gun head is directly in contact with the clean water, thereby making the electric spark source gun head stable and reliable, not affected by the water quality outside the hole, and ensuring stable signal transmission.

[0008] Preferably, the first connection end is provided with a first external thread, the second connection end is provided with a first internal thread, and the first external thread is threadedly connected with the first internal thread.

[0009] By adopting the above technical solution, after the sleeve body is sleeved outside the spark source gun head, by rotating the sleeve body, the first external thread is engaged with the second external thread, which can not only complete the detachable connection between the sleeve body and the spark source gun head, but also play a certain sealing effect.

[0010] Preferably, the opening and closing member includes a screw, and a water passing threaded hole is provided at the end of the sleeve body away from the second connection end, and the screw is threadedly installed at the water passing threaded hole.

[0011] By adopting the above technical solution, when in use, water is passed into the sleeve body through the water passing threaded hole, and then the screw is screwed in for sealing; when the use is completed, the screw is screwed out to discharge the water; this structure is simple to use and highly practical.

[0012] Preferably, the ratio of the aperture of the water passing threaded hole to the diameter of the sleeve body is 1:3 - 1:4.

[0013] By adopting the above technical solution, the overall strength will not be affected due to the too large water passing threaded hole, nor will it be inconvenient to add water due to the too small water passing threaded hole.

[0014] Preferably, the opening and closing member includes an end cap, a second external thread is provided at one end of the sleeve body away from the second connection end, a second internal thread is provided inside the end cap, and the second external thread and the second internal thread are threadedly connected.

[0015] By adopting the above technical solution, when in use, directly unscrew the end cap, pass water into the sleeve body, and then screw the end cap back on; when the use is completed, unscrew the end cap to discharge the water; this structure is simple to use and also highly practical.

[0016] Preferably, a sunk groove extends circumferentially along the outer side wall at one end of the sleeve body away from the second connection end, and the second external thread is provided in the sunk groove; an adaptation groove adapted to the sunk groove is circumferentially provided on the inner side wall of the end cap, and the second internal thread is provided in the adaptation groove; the outer side wall of the sleeve body is flush with the outer side wall of the end cap.

[0017] By adopting the above technical solution, the sunk groove plays a limiting role when the end cap is screwed into the sleeve body; in addition, when the end cap is installed on the sleeve body, the overall outer side wall and inner side wall after the combination of the sleeve body and the end cap are kept flat.

[0018] Preferably, the sleeve body includes an outer wall layer and an inner wall layer, the outer wall layer is a transparent layer, and a plurality of hollow groove holes are circumferentially spaced apart on the inner wall layer.

[0019] By adopting the above technical solution, it is convenient to observe the water quality situation inside the sleeve body and replace the water in time.

[0020] Preferably, the outer wall layer is a transparent soft silicone layer.

[0021] By adopting the above technical solution, it can not only play a certain buffering and protecting role, but also have good electrical conductivity.

[0022] Preferably, the inner wall layer is a nylon skeleton layer.

[0023] By adopting the above technical solution, the nylon skeleton has high strength, fatigue resistance, good impact resistance, wear resistance, and high adhesion to the transparent soft silicone layer of the outer wall layer.

[0024] Preferably, the end of the sleeve body away from the second connection end is arc-shaped.

[0025] By adopting the above technical solution, the overall force is uniform, and the protection of the spark shock source gun head is further improved.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When in use, the sleeve body is sleeved outside the spark shock source gun head, and the first connection end and the second connection end are connected, that is, the connection between the sleeve body and the spark shock source gun head is completed; then clean water is added into the sleeve body through the opening and closing member, so that the spark shock source gun head is directly in contact with the clean water, thereby making the spark shock source gun head stable and reliable, not affected by the water quality outside the hole, and ensuring stable signal transmission;

[0028] 2. By opening the water through hole thread and cooperating with the screw to add and drain water into the sleeve body; and by setting the end cover to add and drain water into the sleeve body; both methods are simple to use and highly practical;

[0029] 3. The hollow groove holes are provided to facilitate observing the water quality inside the sleeve body and replacing the water in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application.

[0031] Figure 2 is the structural schematic diagram of the opening and closing member of Embodiment 1 of the present application.

[0032] Figure 3 is the cross-sectional view of the sleeve body structure of Embodiment 1 of the present application.

[0033] Figure 4 is the overall structural schematic diagram of Embodiment 2 of the present application.

[0034] Figure 5It is a cross-sectional view of the opening and closing member structure of Embodiment 2 of this application.

[0035] Explanation of reference numerals:

[0036] 1. Sleeve body; 11. Water-passing threaded hole; 12. Outer wall layer; 13. Inner wall layer; 14. Hollow slot hole; 15. Sunk groove; 151. Second external thread; 2. First connection end; 21. First external thread; 3. Second connection end; 31. First internal thread; 4. Opening and closing member; 41. Screw; 42. End cover; 421. Adaptation slot; 422. Second internal thread; 101. Electric spark source gun head. Detailed implementation manners

[0037] The following further elaborates on this application in conjunction with the attached Figures 1-5 drawings.

[0038] An embodiment of this application discloses an electric spark source gun head sleeve protection device.

[0039] Embodiment 1

[0040] Referring to Figure 1 , the sleeve protection device includes a sleeve body 1, a first connection end 2, and a second connection end 3. The sleeve body 1 is in a hollow cylindrical shape, and one end of the sleeve body 1 is open. The open end of the sleeve body 1 is for the electric spark source gun head 101 to extend into the sleeve body 1; the first connection end 2 is fixedly installed at the head position of the electric spark source gun head 101, and the first connection end 2 is provided with a first external thread 21; the second connection end 3 is fixedly installed at the open end position of the sleeve body 1. The second connection end 3 is in a hollow cylindrical shape, and the second connection end 3 is provided with a first internal thread 31. The first external thread 21 is threadedly connected to the first internal thread 31, so that the sleeve body 1 can be detachably installed outside the electric spark source gun head 101.

[0041] Referring to Figure 1 and Figure 2 , an opening and closing member 4 for adding and discharging water is provided at one end of the sleeve body 1 away from the second connection end 3. The opening and closing member 4 includes a screw 41. The end of the sleeve body 1 away from the second connection end 3 is arc-shaped and a water-passing threaded hole 11 is opened at the middle position. The screw 41 is threadedly installed at the water-passing threaded hole 11; and the ratio of the aperture of the water-passing threaded hole 11 to the diameter of the sleeve body 1 is 1:3 - 1:4. In this embodiment, the aperture of the water-passing threaded hole 11 is 10 mm, the diameter of the sleeve body 1 is 40 mm, and the specification of the screw 41 is M10. Therefore, the ratio of the aperture of the water-passing threaded hole 11 to the diameter of the sleeve body 1 is 1:4; thus, adding or discharging water into the sleeve body 1 is achieved by controlling the opening and closing of the water-passing threaded hole 11.

[0042] Referring to Figure 1 andFigure 3 , the sleeve body 1 includes an outer wall layer 12 and an inner wall layer 13. The outer wall layer 12 is a transparent soft silicone layer, and the inner wall layer 13 is a nylon skeleton layer. Among them, two groups of hollow slots 14 are arranged at intervals along the length direction of the sleeve body 1. A plurality of hollow slots 14 in each group are arranged at equal intervals along the circumferential direction of the sleeve body 1, so that the water quality inside the sleeve body 1 can be viewed.

[0043] The implementation principle of Embodiment 1 is as follows: When in use, the sleeve body 1 is sleeved outside the spark source gun head 101, and the connection between the sleeve body 1 and the spark source gun head 101 is completed through the engagement of the first external thread 21 and the first internal thread 31; then the screw 41 is unscrewed from the water passing threaded hole 11, and clean water is added into the sleeve body 1 through the water passing threaded hole 11, so that the spark source gun head 101 is directly in contact with the clean water, thereby making the spark source gun head 101 stable and reliable, not affected by the water quality outside the hole, and ensuring stable signal transmission; after use, the screw 41 is unscrewed again to drain the water in the sleeve body 1.

[0044] Embodiment 2

[0045] Referring to Figure 4 and Figure 5 , the difference between this embodiment and Embodiment 1 is that the opening and closing member 4 includes an end cover 42. A sink 15 extends circumferentially along the outer side wall of one end of the sleeve body 1 away from the second connection end 3, and a second external thread 151 is provided in the sink 15; the end cover 42 is hollow, and a fitting groove 421 adapted to the sink 15 is circumferentially opened on the inner side wall of one end of the end cover 42, and the outer shape of the other end is arc-shaped; a second internal thread 422 is provided in the fitting groove 421, and the second external thread 151 and the second internal thread 422 are threadedly connected; the outer side wall of the sleeve body 1 is flush with the outer side wall of the end cover 42; thus, after the end cover 42 is screwed into the sleeve body 1, the sleeve body 1 in this embodiment has the same outer shape as that in Embodiment 1.

[0046] The implementation principle of Embodiment 2 is as follows: When in use, the sleeve body 1 is sleeved outside the spark source gun head 101, and the connection between the sleeve body 1 and the spark source gun head 101 is completed through the engagement of the first external thread 21 and the first internal thread 31; then the end cover 42 is unscrewed from the sleeve body 1, and clean water is added into the sleeve body 1, so that the spark source gun head 101 is directly in contact with the clean water, thereby making the spark source gun head 101 stable and reliable, not affected by the water quality outside the hole, and ensuring stable signal transmission; after use, the end cover 42 is unscrewed again to drain the water in the sleeve body 1.

[0047] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A spark source gun head sleeve protection device, characterized in that: The invention comprises a sleeve body (1) for being sleeved outside an electric spark source gun head (101) and a first connection end (2) preset at the head position of the electric spark source gun head (101); a second connection end (3) is arranged at one end of the sleeve body (1) and an opening and closing member (4) for adding and draining water is arranged at the other end; the second connection end (3) is used for being detachably connected to the first connection end (2).

2. The spark source gun head sleeve protection device according to claim 1, characterized in that: The first connection end (2) is provided with a first external thread (21), the second connection end (3) is provided with a first internal thread (31), and the first external thread (21) is threadedly connected to the first internal thread (31).

3. The spark source gun head sleeve protection device according to claim 1, characterized in that: The opening and closing member (4) comprises a screw (41), and a water threaded hole (11) is provided at an end of the sleeve body (1) away from the second connection end (3), and the screw (41) is threadedly installed at the water threaded hole (11).

4. The spark source gun head sleeve protection device according to claim 3, characterized in that: The ratio of the hole diameter of the water threaded hole (11) to the tube diameter of the sleeve body (1) is 1:3-1:

4.

5. The spark source gun head sleeve protection device according to claim 1, characterized in that: The opening and closing member (4) comprises an end cover (42), a second external thread (151) is provided at one end of the sleeve body (1) away from the second connecting end (3), a second internal thread (422) is provided inside the end cover (42), and the second external thread (151) and the second internal thread (422) are threadedly connected.

6. The spark source gun head sleeve protection device according to claim 5, characterized in that: A recessed groove (15) is circumferentially extended on the outer wall of one end of the sleeve body (1) away from the second connecting end (3), and the second external thread (151) is opened in the recessed groove (15); an adapting groove (421) adapted to the recessed groove (15) is circumferentially opened on the inner wall of the end cover (42), and the second internal thread (422) is opened in the adapting groove (421); the outer wall of the sleeve body (1) is flush with the outer wall of the end cover (42).

7. The spark source gun head sleeve protection device according to claim 1, characterized in that: The sleeve body (1) comprises an outer wall layer (12) and an inner wall layer (13); the outer wall layer (12) is a transparent layer; and the inner wall layer (13) is provided with a plurality of hollow slots (14) spaced apart along the circumferential direction.

8. The spark source gun head sleeve protection device according to claim 7, characterized in that: The outer wall layer (12) is a transparent soft silicone layer.

9. The spark source gun head sleeve protection device according to claim 7, characterized in that: The inner wall layer (13) is a nylon skeleton layer.

10. The spark source gun head sleeve protection device according to claim 1, characterized in that: An end portion of the sleeve body (1) away from the second connecting end (3) is in an arc shape.

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