Device for positioning consistency of geophones in seismic exploration

Abstract

The invention belongs to the technical field of geological exploration equipment, and particularly relates to a geophone consistency positioning device in seismic exploration, which comprises outer rulers and a rotary connecting assembly, a plurality of outer rulers are mounted on the outer side of the rotary connecting assembly at equal angles, and a first positioning plate is fixedly arranged at the bottom of one end, close to the rotary connecting assembly, of each outer ruler. Positioning bolts are installed on the outer walls of the ends, away from the rotary connecting assemblies, of the outer rulers in a threaded mode, inner rulers are arranged in the outer rulers in a clamped and sliding mode, second positioning plates are fixedly arranged at the bottoms of the ends, located outside the outer rulers, of the inner rulers, the second positioning plates and the first positioning plates are symmetrically arranged, and limiting assemblies are installed between every two adjacent outer rulers. According to the invention, the distance between each detector and the central vertical shaft is ensured to be consistent, the test error caused by the distance can be effectively reduced during the knocking detection, and the accuracy of the test data of the detectors is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of geological exploration equipment, and in particular relates to a positioning device for making geophones consistent in seismic exploration. Background Art

[0002] Seismic exploration is a work of prospecting and detecting geology through various means and methods. In field seismic exploration operations, it is necessary to ensure that each geophone has a qualified signal takeoff. Therefore, before the start of seismic exploration, it is usually necessary to detect the signal takeoff of the geophones to ensure that their working states are stable and qualified, and to avoid affecting the exploration results.

[0003] Currently, when detecting the signal takeoff of geophones, the existing working method is to insert the geophones into a designated circular line pulled by nylon wire on a relatively flat place, and then use excitation equipment such as a sledgehammer to strike at the center position of the circle. Ideally, since the geophones are distributed annularly around the striking position, the spacing is equal. However, in actual situations, the spacing between each geophone and the striking position is deviated due to factors such as the terrain and the irregular circular trajectory of the nylon wire, which will have a certain impact on the test of the geophones. Therefore, it is urgent to overcome and improve the existing defects and deficiencies, and provide a positioning device for making geophones consistent in seismic exploration. Summary of the Invention

[0004] The purpose of the present invention is to provide a positioning device for making geophones consistent in seismic exploration, which is reasonable in design, simple in structure, easy to operate, and has higher accuracy of test data, so as to solve the problems existing in the prior art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A positioning device for making geophones consistent in seismic exploration, which includes an outer ruler and a rotary connection component. A plurality of the outer rulers are installed at equal angles on the outside of the rotary connection component. A first positioning plate is fixedly provided at the bottom of one end of the outer ruler close to the rotary connection component. A positioning bolt is threadedly installed on the outer wall of the end of the outer ruler far from the rotary connection component. An inner ruler is clamped and slidably arranged inside the outer ruler. A second positioning plate is fixedly provided at the bottom of the end of the inner ruler located outside the outer ruler. The second positioning plate and the first positioning plate are symmetrically arranged. A limiting component is installed between adjacent two outer rulers.

[0006] As a preferred embodiment, the rotary connection component includes a central vertical shaft, a limiting disc, and a support connecting rod. Limiting discs are fixedly provided at both the upper and lower ends of the central vertical shaft. A plurality of the support connecting rods are distributed in a rotary stepped shape around the central vertical shaft as the center. A plurality of the support connecting rods are all located between the two limiting discs.

[0007] As a preferred embodiment, a plurality of the support link rods correspond to a plurality of the outer rulers one by one. One end of the support link rod is rotatably connected to the central vertical axis, and the other end of the support link rod is fixedly connected to the corresponding outer ruler.

[0008] As a preferred embodiment, scale marking lines are engraved on the outer wall of the top end of the inner ruler, and both the first positioning plate and the second positioning plate are in an inverted right-angled triangle structure.

[0009] As a preferred embodiment, the limiting assembly includes a first arc rod, a second arc rod, a third arc rod, a first guiding groove and a second guiding groove. The second arc rod and the third arc rod are sequentially clamped and slidably installed inside the first arc rod. The centers of the first arc rod, the second arc rod and the third arc rod are on the same vertical line as the center of the central vertical axis. A first guiding groove is formed inside the bottom end of the first arc rod, and a second guiding groove is formed inside the bottom end of the second arc rod.

[0010] As a preferred embodiment, the mutually remote ends of the first arc rod and the third arc rod are respectively fixedly connected to two adjacent outer rulers. A first protruding portion is provided at the bottom of one end of the second arc rod, and the first protruding portion is clamped and slidably located in the first guiding groove. A second protruding portion is provided at the bottom of one end of the third arc rod, and the second protruding portion is clamped and slidably located in the second guiding groove.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: In the solution of the present invention: By using multiple groups of limiting assemblies, it is convenient to control the rotation and unfolding of multiple outer rulers around the central vertical axis to form an annular distribution. And by using the scale marking lines, it is convenient to control the extension lengths of each inner ruler to be exactly the same. Then, the positioning bolts are tightened to position the inner ruler. Subsequently, the device is inserted onto the soil surface through the first positioning plate and the second positioning plate. Then, multiple geophones are respectively installed on the ground by fitting to the ends of multiple inner rulers. In this way, it can be ensured that the distance between each geophone and the central vertical axis is the same. During the percussion test, the test error caused by the distance can be effectively reduced, and the accuracy of the test data of the geophone is effectively improved. By using the settings of the first guiding groove, the second guiding groove, the first protruding portion and the second protruding portion, it is convenient for the stable extension, unfolding or contraction of the limiting assembly. Moreover, after the work is completed, the device can also be rotated and contracted, which can reduce the volume of the device and achieve the purpose of being easy to carry. The operation of this device is simple, and the speed of moving to the next excitation point is fast, which is conducive to the use in field seismic exploration work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. The following is the description of the drawings: Figure 1 Schematic diagram of the three-dimensional top view structure of the present invention; Figure 2 Schematic diagram of the three-dimensional bottom view structure of the present invention; Figure 3 Schematic diagram of the structure of the rotary connection assembly of the present invention; Figure 4 Schematic diagram of the side view structure of the outer scale and the inner scale of the present invention; Figure 5 Schematic diagram of the overall bottom view structure of the limiting component of the present invention; Figure 6 Schematic diagram of the top view structure of the present invention in the storage state.

[0013] In the figure: 1. Outer scale; 2. Rotary connection assembly; 21. Central vertical shaft; 22. Limiting disc; 23. Support connecting rod; 3. First positioning plate; 4. Positioning bolt; 5. Inner scale; 6. Scale marking line; 7. Second positioning plate; 8. Limiting component; 81. First arc-shaped rod; 82. Second arc-shaped rod; 83. Third arc-shaped rod; 84. First guiding groove; 85. Second guiding groove; 86. First protruding part; 87. Second protruding part. Specific embodiments

[0014] The following described embodiments are only a part of the embodiments of the present invention and do not represent all embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows: As Figure 1-6 shown, the positioning device for geophone consistency in seismic exploration of the present invention includes an outer scale 1 and a rotary connection assembly 2. A plurality of outer scales 1 are installed at equal angles on the outer side of the rotary connection assembly 2. A first positioning plate 3 is fixedly provided at the bottom of one end of the outer scale 1 close to the rotary connection assembly 2. A positioning bolt 4 is threadedly installed on the outer wall of the end of the outer scale 1 far from the rotary connection assembly 2. An inner scale 5 is clamped and slidably arranged inside the outer scale 1. A second positioning plate 7 is fixedly provided at the bottom of the end of the inner scale 5 located outside the outer scale 1. The second positioning plate 7 and the first positioning plate 3 are symmetrically arranged. A limiting component 8 is installed between adjacent two outer scales 1.

[0015] On the basis of the above structure, the rotary connection assembly 2 includes a central vertical shaft 21, a limiting disc 22 and a support connecting rod 23. Limiting discs 22 are fixedly provided at both the upper and lower ends of the central vertical shaft 21. A plurality of support connecting rods 23 are distributed in a rotary stepped shape around the central vertical shaft 21 as the center, and a plurality of support connecting rods 23 are all located between the two limiting discs 22.

[0016] On the basis of the above structure, a plurality of support connecting rods 23 and a plurality of outer scales 1 are in one-to-one correspondence. One end of the support connecting rod 23 is rotatably connected to the central vertical shaft 21, and the other end of the support connecting rod 23 is fixedly connected to the corresponding outer scale 1.

[0017] In this embodiment, by using the central vertical axis 21 and multiple support link rods 23, it is convenient to control the rotation adjustment of multiple outer rulers 1 around the same center, and by using two limit discs 22, it is convenient to limit the multiple support link rods 23 to prevent the central vertical axis 21 from separating from the support link rods 23.

[0018] On the basis of the above structure, scale markings 6 are engraved on the outer wall of the top end of the inner ruler 5, and both the first positioning plate 3 and the second positioning plate 7 are of an inverted right-angled triangle structure.

[0019] In this embodiment, by setting the scale markings 6, it is convenient to accurately control the telescopic length of each inner ruler 5, and by using the first positioning plate 3 and the second positioning plate 7, it is convenient to position and place the device on the soil ground.

[0020] On the basis of the above structure, the limiting component 8 includes a first arc rod 81, a second arc rod 82, a third arc rod 83, a first guiding groove 84 and a second guiding groove 85. The second arc rod 82 and the third arc rod 83 are sequentially installed in a snap-fit and sliding manner on the inner side of the first arc rod 81. The centers of the first arc rod 81, the second arc rod 82 and the third arc rod 83 are on the same vertical line as the center of the central vertical axis 21. A first guiding groove 84 is opened inside the bottom end of the first arc rod 81, and a second guiding groove 85 is opened inside the bottom end of the second arc rod 82.

[0021] In this embodiment, by using multiple groups of limiting components 8, it is convenient to control the multiple outer rulers 1 to rotate and expand around the central vertical axis 21 to form an annular distribution. Subsequently, by using the scale markings 6 to control each inner ruler 5 to extend the same length, it is convenient to ensure that the installation distance of each detector from the central vertical axis 21 is consistent. During the percussion test, the test error caused by the distance can be effectively reduced, and the accuracy of the detector test data is effectively improved.

[0022] On the basis of the above structure, the mutually remote ends of the first arc rod 81 and the third arc rod 83 are respectively fixedly connected to two adjacent outer rulers 1. A first protrusion 86 is provided at the bottom end of one end of the second arc rod 82, and the first protrusion 86 is snap-fitted and slidably located in the first guiding groove 84. A second protrusion 87 is provided at the bottom end of one end of the third arc rod 83, and the second protrusion 87 is snap-fitted and slidably located in the second guiding groove 85.

[0023] In this embodiment, by using the first guiding groove 84, the second guiding groove 85, the first protrusion 86 and the second protrusion 87, it is convenient for the limiting component 8 to stably extend and expand or contract, and it is convenient to reduce the volume of the device after the work is completed, achieving the purpose of easy carrying.

[0024] The working principle of the present invention is as follows: In use, first, through the scale marking lines 6 engraved on the outer wall of the top of the inner ruler 5, each inner ruler 5 is controlled to slide out to a specified length, and then the positioning bolt 4 is tightened to position the inner ruler 5. Subsequently, through multiple limiting components 8 and multiple support connecting rods 23, multiple outer rulers 1 are controlled to rotate and expand in a clockwise direction around the central vertical axis 21 and be distributed in a ring shape as shown in Figure 1 the state shown in the figure. At this time, the device can be stably inserted on the soil surface by using the first positioning plate 3 and the second positioning plate 7. Then, multiple geophones are respectively attached to the ends of multiple inner rulers 5 and installed on the ground, which can ensure that the distance of each geophone from the central vertical axis 21 is consistent, effectively reducing the test error caused by the distance and effectively improving the accuracy of the geophone test data; During the percussion detection, the device is removed. At this time, the slots left by multiple second positioning plates 7 on the soil surface can form a small ring as a mark, which is convenient to control the excitation equipment such as a sledgehammer to align with the small ring for percussion, so as to detect multiple geophones. After the detection work is completed, the limiting component 8 can also be used to rotate and contract the device into the state shown in Figure 6 the figure, reducing the volume of the device to achieve the purpose of easy carrying. The operation of this device is simple, and the speed of moving to the next excitation point is fast, which is conducive to the use in field seismic exploration work and has strong practicability.

[0025] The above is only a preferred specific embodiment of the present invention, and it is not intended to limit the protection scope of the present invention; any equivalent changes, modifications, substitutions, and variations made by those skilled in the art in the technical field according to the concept of the present invention on the basis of the existing technology through logical analysis, reasoning, or limited experiments shall be within the protection scope determined by the claims.

Claims

1. A positioning device for geophone consistency in seismic exploration, comprising an outer ruler (1) and a rotary connection assembly (2), characterized in that: A plurality of the outer rulers (1) are installed on the outer side of the rotary connection assembly (2) at equal angles. A first positioning plate (3) is fixedly provided at the bottom of one end of the outer ruler (1) close to the rotary connection assembly (2). A positioning bolt (4) is threadedly installed on the outer wall of the end of the outer ruler (1) far from the rotary connection assembly (2). An inner ruler (5) is snap-fitted and slidably arranged inside the outer ruler (1). A second positioning plate (7) is fixedly provided at the bottom of the end of the inner ruler (5) located outside the outer ruler (1). The second positioning plate (7) and the first positioning plate (3) are symmetrically arranged. A limiting assembly (8) is installed between two adjacent outer rulers (1).

2. The positioning device for making the geophones consistent in seismic exploration according to claim 1, wherein: The rotary connection assembly (2) includes a central vertical shaft (21), a limiting disc (22), and a support connecting rod (23). Limiting discs (22) are fixedly provided at both the upper and lower ends of the central vertical shaft (21). A plurality of the support connecting rods (23) are distributed in a rotary stepped shape around the central vertical shaft (21) as the center. A plurality of the support connecting rods (23) are all located between the two limiting discs (22).

3. The positioning device for making the geophones consistent in seismic exploration according to claim 2, wherein: A plurality of the support connecting rods (23) correspond to a plurality of the outer rulers (1) one by one. One end of the support connecting rod (23) is rotatably connected to the central vertical shaft (21), and the other end of the support connecting rod (23) is fixedly connected to the corresponding outer ruler (1).

4. A positioning device for making the geophones consistent in seismic exploration according to claim 3, characterized in that: Scale markings (6) are engraved on the outer wall of the top end of the inner ruler (5). Both the first positioning plate (3) and the second positioning plate (7) are in an inverted right-angled triangle structure.

5. A positioning device for making the consistency of geophones in seismic exploration according to claim 2, wherein: The limiting assembly (8) includes a first arc-shaped rod (81), a second arc-shaped rod (82), a third arc-shaped rod (83), a first guiding groove (84), and a second guiding groove (85). The second arc-shaped rod (82) and the third arc-shaped rod (83) are sequentially snap-fitted and slidably installed inside the first arc-shaped rod (81). The centers of the first arc-shaped rod (81), the second arc-shaped rod (82), and the third arc-shaped rod (83) are on the same vertical line as the center of the central vertical shaft (21). A first guiding groove (84) is formed inside the bottom end of the first arc-shaped rod (81). A second guiding groove (85) is formed inside the bottom end of the second arc-shaped rod (82).

6. The positioning device for making the geophones consistent in seismic exploration according to claim 5, characterized in that: The mutually remote ends of the first arc-shaped rod (81) and the third arc-shaped rod (83) are respectively fixedly connected to two adjacent outer rulers (1). A first protruding portion (86) is provided at the bottom of one end of the second arc-shaped rod (82). The first protruding portion (86) is snap-fitted and slidably located inside the first guiding groove (84). A second protruding portion (87) is provided at the bottom of one end of the third arc-shaped rod (83). The second protruding portion (87) is snap-fitted and slidably located inside the second guiding groove (85).

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