Novel geophysical prospecting gas explosion seismic source based on high-repeatability accurate superposition

Abstract

The utility model discloses a novel geophysical prospecting gas explosion source based on height repeatability accurate superposition. The novel geophysical prospecting gas explosion source comprises a buried cylinder and a height adjusting mechanism. Uniformly distributed air leakage holes are formed in the outer arc surface of the buried cylinder; the height adjusting mechanism comprises a top butt joint protection ring, a guide strip, a guide sliding groove, a height adjusting cylinder, a cover plate, a lead screw, a support and a butt joint, the top butt joint protection ring is arranged on the upper side of the outer arc face of the buried cylinder, the height adjusting cylinder is slidably connected into the buried cylinder, and the outer arc face of the height adjusting cylinder is provided with the guide sliding groove; and the inner arc surface of the buried cylinder is provided with uniformly distributed guide strips, the outer surfaces of the guide strips are slidably connected with the interiors of the guide sliding grooves located in the same side, the middle of the interior of the height adjusting cylinder is fixedly connected with a support, and the middle of the support is rotatably connected with a rotating shaft. The intensity, directivity and frequency of seismic waves can be accurately controlled, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of gas explosion sources, in particular to a new type of geophysical gas explosion source based on highly repeatable and precise superposition. Background Art

[0002] Gas explosion source is also called "air gun source". It introduces a mixture of propane, oxygen or air into the explosion chamber, uses electric spark to detonate, or directly generates shock waves, or uses gas explosion to push heavy objects to hit the ground;

[0003] In existing technologies, methane gas explosion source systems are primarily used for blasting as an alternative to explosives and are rarely used in seismic exploration. Traditionally, gas explosion sources used in geological exploration release a methane mixture underground to generate an explosion, generating seismic waves to detect underground structures. However, existing technologies exhibit certain instabilities in controlling the release of the methane mixture, making it difficult to precisely control the intensity, directionality, and frequency of the seismic waves generated by the explosion. Therefore, we propose a new geophysical gas explosion source based on highly repeatable and precise superposition. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a new type of geophysical gas explosion source based on highly repeatable and precise superposition. The intensity, directionality and frequency of seismic waves can be precisely controlled, and the safety is high, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a new type of geophysical gas explosion source based on highly repeatable and precise superposition, comprising an underground tube and a height adjustment mechanism;

[0006] Buried tube: Its outer arc surface is provided with evenly distributed air leakage holes;

[0007] The height adjustment mechanism includes a top docking protection ring, a guide bar, a guide slot, a height adjustment cylinder, a cover plate, a screw rod, a bracket and a docking joint. The top docking protection ring is arranged on the upper side of the outer arc surface of the buried cylinder, and the inner sliding connection of the buried cylinder is provided with the height adjustment cylinder. The outer arc surface of the height adjustment cylinder is provided with a guide slot, and the inner arc surface of the buried cylinder is provided with evenly distributed guide bars. The outer surface of the guide bar is slidably connected to the inner side of the guide slot on the same side. The inner middle part of the height adjustment cylinder is fixedly connected with the bracket, and the middle part of the bracket is rotatably connected with a rotating shaft. The lower end of the rotating shaft is rotatably connected to the lower inner wall of the bracket, the upper end of the rotating shaft is fixedly connected with a screw rod, and the outer threaded surface of the screw rod is threadedly connected with a threaded cylinder. The outer arc surface of the threaded cylinder is fixedly connected with a cover plate, and the lower surface of the cover plate is provided with a docking joint. The front side of the lower inner wall of the height adjustment cylinder is provided with an air intake pipe, and the upper end of the air intake pipe is connected to the external air supply equipment. The intensity, directionality and frequency of seismic waves can be precisely controlled, and the safety is relatively high.

[0008] Furthermore, the height adjustment mechanism also includes a turntable, which is arranged at the upper end of the screw rod to realize the driving function.

[0009] Furthermore, it also includes a gas mixing mechanism, which includes a driving gear, a rotating rod, a turbine and a driven gear. The driving gear is fixedly sleeved on the lower side of the outer arc surface of the rotating shaft. The middle part of the height adjustment cylinder is rotatably connected to the rotating rod. The upper end of the rotating rod is fixedly connected to the driven gear. The driving gear is meshed with the driven gear. The lower end of the rotating rod is provided with a turbine to realize the gas mixing function.

[0010] Furthermore, it also includes an ignition angle, which is arranged on the rear side of the lower inner wall of the height adjustment tube, and the ignition head of the ignition angle extends to the lower side wall of the height adjustment tube to realize the ignition function.

[0011] Furthermore, it also includes an avoidance groove, which is opened on the right side of the upper surface of the cover plate to achieve the function of avoiding the intake pipe.

[0012] Furthermore, the lower surface of the height adjustment cylinder is a rubber shock-absorbing pad to prevent the amplitude from damaging the height adjustment cylinder and the screw rod.

[0013] Furthermore, it also includes embedded parts, which are fixedly connected to the lower surface of the buried tube to enhance the stability of the lower side of the buried tube.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: the new geophysical gas explosion source based on highly repeatable and precise superposition has the following advantages:

[0015] Through the self-locking structure of the screw rod, the position of the height adjustment cylinder can be accurately positioned to adjust the size of the enclosed space. Then, detonation is achieved through the ignition angle to form a seismic wave with a specified impact force to detect underground structures. The intensity, directionality and frequency of the seismic wave can be precisely controlled, and the safety is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the height adjustment mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the gas mixing mechanism of the utility model.

[0019] In the figure: 1 buried cylinder, 2 air leakage hole, 3 height adjustment mechanism, 31 top docking protection ring, 32 guide bar, 33 guide slide, 34 height adjustment cylinder, 35 cover plate, 36 screw rod, 37 turntable, 38 bracket, 39 joint, 4 embedded parts, 5 gas mixing mechanism, 51 driving gear, 52 rotating rod, 53 turbine, 54 driven gear, 6 avoidance groove, 7 intake pipe, 8 ignition angle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-3 ,This embodiment provides a technical solution: a new type of geophysical gas explosion source based on highly repeatable and precise superposition, comprising a buried tube 1 and a height adjustment mechanism 3;

[0022] The buried tube 1 has evenly distributed air leakage holes 2 on its outer arc surface and also includes embedded parts 4, which are fixedly connected to the lower surface of the buried tube 1. When the detonation source is needed, a deep pit of a specified depth is dug at a specified location, and then the buried tube 1 is buried. The embedded parts 4 lift up the buried tube 1 to achieve a tight grip on the deep pit.

[0023] The height adjustment mechanism 3 includes a top docking protection ring 31, a guide bar 32, a guide slot 33, a height adjustment cylinder 34, a cover plate 35, a screw 36, a bracket 38 and a docking joint 39. The top docking protection ring 31 is arranged on the upper side of the outer arc surface of the buried cylinder 1. The interior of the buried cylinder 1 is slidably connected with the height adjustment cylinder 34. The outer arc surface of the height adjustment cylinder 34 is provided with a guide slot 33. The inner arc surface of the buried cylinder 1 is provided with evenly distributed guide bars 32. The outer surface of the guide bar 32 is slidably connected to the inner side of the guide slot 33 on the same side. The middle part of the interior of the height adjustment cylinder 34 is fixedly connected with a bracket 38. The middle part of the bracket 38 is rotatably connected with a rotating shaft. The lower end of the rotating shaft is rotatably connected to the lower inner wall of the bracket 38. The upper end of the rotating shaft is fixedly connected with a screw 3 6. The outer thread surface of the screw rod 36 is threadedly connected with a threaded barrel, and the outer arc surface of the threaded barrel is fixedly connected to a cover plate 35. The lower surface of the cover plate 35 is provided with a docking joint 39. The front side of the lower inner wall of the height adjustment barrel 34 is provided with an air intake pipe 7. The upper end of the air intake pipe 7 is connected to the external air supply equipment. The height adjustment mechanism 3 also includes a turntable 37, which is arranged at the upper end of the screw rod 36. It also includes a gas mixing mechanism 5. The gas mixing mechanism 5 includes a driving gear 51, a rotating rod 52, a turbine 53 and a driven gear 54. The driving gear 51 is fixedly sleeved on the lower side of the outer arc surface of the rotating shaft. The middle part of the height adjustment barrel 34 is rotatably connected with the rotating rod 52. The upper end of the rotating rod 52 is fixedly connected with the driven gear 54. The driving gear 51 is meshed with the driven gear 54. The lower end of the rotating rod 52 It is provided with a turbine 53 and also includes an ignition angle 8. The ignition angle 8 is arranged on the rear side of the lower inner wall of the height adjustment cylinder 34. The ignition head of the ignition angle 8 extends to the lower side wall of the height adjustment cylinder 34. It also includes an avoidance groove 6. The avoidance groove 6 is opened on the right side of the upper surface of the cover plate 35. The lower surface of the height adjustment cylinder 34 is a rubber shock-absorbing pad. At this time, the cover plate 35 is docked with the top docking protection ring 31 through the docking joint 39 under the cover plate 35, and then fixed. At this time, the turntable 37 can be rotated forward and reverse, thereby driving the screw rod 36 to rotate forward and reverse, thereby driving the height adjustment cylinder 34 to adjust the height position in the buried cylinder 1. During this period, the guide bar 32 and the guide slide groove 33 prevent the height adjustment cylinder 34 from rotating when the height adjustment is performed. During this process, The screw rod 36 rotates forward and reverse, thereby driving the driving gear 51 to rotate forward and reverse, thereby driving the driven gear 54 to rotate forward and reverse, thereby driving the turbine 53 to rotate. The radius of the driving gear 51 is greater than the radius of the driven gear 54, so the turbine 53 rotates faster. When the specified height is reached, the external gas supply equipment can be adjusted, and the combustible gas enters the space surrounded by the inner arc surface of the buried tube 1 and the height adjustment tube 34 through the air intake pipe 7. Because the buried tube 1 is buried underground at this time, the combustible gas is directly discharged into the enclosed space. At this time, the ignition angle 8 can be manually adjusted. The ignition angle 8 ignites the combustible gas in the enclosed space, thereby releasing an explosion. After the explosion, the underground structure can be detected through external observation instruments.

[0024] The working principle of a new type of geophysical gas explosion source based on highly repeatable and precise superposition provided by the present invention is as follows: when the explosion source is needed, a deep pit of a specified depth is dug at a specified location, and then the buried tube 1 is buried, and the embedded part 4 lifts up the buried tube 1 to achieve a tight grip on the deep pit. At this time, the cover plate 35 is docked with the top docking protection ring 31 through the docking joint 39 under the cover plate 35, and then fixed. At this time, the turntable 37 can be rotated forward and reverse, thereby driving the screw rod 36 to rotate forward and reverse, thereby driving the height adjustment tube 34 to adjust the height position in the buried tube 1. During this period, the guide bar 32 and the guide slot 33 prevent the height adjustment tube 34 from rotating when the height adjustment is performed. During this process, the screw rod 36 It rotates forward and reverse, thereby driving the driving gear 51 to rotate forward and reverse, thereby driving the driven gear 54 to rotate forward and reverse, thereby driving the turbine 53 to rotate. The radius of the driving gear 51 is greater than the radius of the driven gear 54, so the turbine 53 rotates faster. When the specified height is reached, the external gas supply equipment can be adjusted, and the combustible gas enters the space surrounded by the inner arc surface of the buried tube 1 and the height adjustment tube 34 through the air intake pipe 7. Because the buried tube 1 is buried underground at this time, the combustible gas is directly discharged into the enclosed space. At this time, the ignition angle 8 can be manually adjusted. The ignition angle 8 ignites the combustible gas in the enclosed space, thereby releasing an explosion. After the explosion, the underground structure can be detected through external observation instruments.

[0025] It is worth noting that the ignition angle 8 disclosed in the above embodiment can be freely configured according to the actual application scenario. It is recommended to use a CNG ignition advancer for the ignition angle 8.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new type of geophysical gas explosion source based on highly repeatable and precise superposition, characterized by: It comprises an underground cylinder (1) and a height adjustment mechanism (3); Buried tube (1): Its outer arc surface is provided with evenly distributed air leakage holes (2); Height adjustment mechanism (3): It includes a top docking protection ring (31), a guide bar (32), a guide chute (33), a height adjustment cylinder (34), a cover plate (35), a screw rod (36), a bracket (38) and a docking joint (39), wherein the top docking protection ring (31) is arranged on the upper side of the outer arc surface of the buried cylinder (1), the interior of the buried cylinder (1) is slidably connected with the height adjustment cylinder (34), the outer arc surface of the height adjustment cylinder (34) is provided with a guide chute (33), the inner arc surface of the buried cylinder (1) is provided with uniformly distributed guide bars (32), the outer surface of the guide bars (32) is located on the same side The guide slide groove (33) is slidably connected to the inside of the height adjustment cylinder (34), the middle part of the interior of the height adjustment cylinder (34) is fixedly connected to the bracket (38), the middle part of the bracket (38) is rotatably connected to the rotating shaft, the lower end of the rotating shaft is rotatably connected to the lower inner wall of the bracket (38), the upper end of the rotating shaft is fixedly connected to the screw rod (36), the external thread surface of the screw rod (36) is threadedly connected to the threaded cylinder, the outer arc surface of the threaded cylinder is fixedly connected to the cover plate (35), the lower surface of the cover plate (35) is provided with a docking joint (39), the front side of the lower inner wall of the height adjustment cylinder (34) is provided with an air intake pipe (7), and the upper end of the air intake pipe (7) is externally connected to the external air supply equipment.

2. The novel geophysical gas explosion source based on highly repeatable and precise superposition according to claim 1 is characterized by: The height adjustment mechanism (3) further comprises a turntable (37), and the turntable (37) is arranged at the upper end of the screw rod (36).

3. The novel geophysical gas explosion source based on highly repeatable and precise superposition according to claim 1 is characterized by: The invention also includes a gas mixing mechanism (5), which includes a driving gear (51), a rotating rod (52), a turbine (53) and a driven gear (54). The driving gear (51) is fixedly sleeved on the lower side of the outer arc surface of the rotating shaft. The middle part of the height adjustment cylinder (34) is rotatably connected to the rotating rod (52). The upper end of the rotating rod (52) is fixedly connected to the driven gear (54). The driving gear (51) is meshed with the driven gear (54). The lower end of the rotating rod (52) is provided with a turbine (53).

4. The novel geophysical gas explosion source based on highly repeatable and precise superposition according to claim 1 is characterized by: It also includes an ignition angle (8), which is arranged on the rear side of the lower inner wall of the height adjustment cylinder (34), and an ignition head of the ignition angle (8) extends to the lower side wall of the height adjustment cylinder (34).

5. The novel geophysical gas explosion source based on highly repeatable and precise superposition according to claim 1 is characterized by: It also includes an avoidance groove (6), which is opened on the right side of the upper surface of the cover plate (35).

6. The novel geophysical gas explosion source based on highly repeatable and precise superposition according to claim 1 is characterized by: The lower surface of the height adjustment cylinder (34) is a rubber shock-absorbing pad.

7. The novel geophysical gas explosion source based on highly repeatable and precise superposition according to claim 1 is characterized by: It also includes an embedded part (4), which is fixedly connected to the lower surface of the buried tube (1).

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