CN115220088A - Geophone capable of improving reception quality of echo signals - Google Patents

Abstract

The invention provides a geophone capable of improving the reception quality of echo signals, which comprises a geophone main body and a geophone tail cone, wherein the geophone tail cone mainly comprises a cylindrical shell, a round rod, a connecting slide block, a connecting rod, a connecting disc, branch supporting rods, a main tail cone, branch tail cones, slide blocks and a fixed rod piece, and the connecting slide block is arranged in the cylindrical shell; the round rod is connected with the connecting slide block through a notch on the cylindrical shell; two ends of the connecting rod are respectively connected with the connecting slide block and the connecting disc; the other end of the fixed rod piece welded at the center of the top of the main tail cone is welded at the bottom of the connecting disc; the bottom end of the branch rod is connected with a slide block in the branch caudal vertebra slide groove, and the top of the branch rod is welded at the bottom of the connecting disc; the four branch caudal vertebras are arranged around the circular truncated cone of the main caudal vertebra. The method improves the coupling effect of the tail cone of the geophone and soil, improves the receiving quality of the geophone on echo signals, and is beneficial to improving the seismic inversion resolution.

Description

A Geophone That Can Improve the Quality of Echo Signal Reception

technical field

The invention relates to the technical field of seismic exploration, in particular to a geophone capable of improving the receiving quality of echo signals.

Background technique

A geophone is an electromechanical conversion device that converts the seismic waves propagating to the ground into electrical signals, and it is a key component of field data acquisition for seismic exploration. However, during the use of most geophones at present, due to the insufficient contact between the inserted caudal vertebra and the soil and the poor coupling quality, the receiving quality of the echo signal by the geophone is reduced, resulting in the seismic inversion resolution based on the echo signal. Low.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the technical problem of low quality of the received echo signal caused by poor contact between the geophone and the ground and poor coupling quality, and to provide a geophone that can improve the quality of echo signal reception.

The object of the present invention can be achieved through the following technical solutions: a geophone that can improve the quality of echo signal reception, comprising a geophone main body and a geophone tail cone, the geophone tail cone is composed of a connecting disc, A connecting rod, a round rod, a connecting slider, a cylindrical shell, a shell bottom plate, a branch tail vertebra, a slider, a branch rod, a main tail vertebra, a fixed rod, and a spring. It is characterized in that: the connecting slider is installed in the cylindrical shell, one end of the spring is connected to the center of the upper surface of the connecting slider, the other end is connected to the cylindrical shell, and is always in a compressed state, the bottom plate of the shell is fixed on the bottom of the cylindrical shell; There is a thread, the side of the connecting slider is provided with a threaded hole which is matched with the round rod, the cylindrical shell has a through notch similar to "コ", and the round rod is connected with the threaded hole through the upper horizontal notch, so as to connect the sliding block. The bottom is 4-6mm away from the upper surface of the shell bottom plate to ensure that the connecting slider can slide; the connecting rod is provided with threads at both ends, one end of which is connected with the threaded hole through the center of the connecting slider, and the other end passes through the circle running through the center of the shell bottom plate. The hole is connected with the threaded hole in the center of the connecting disc; the shape of the main tail vertebra is a combination of an inverted truncated cone and a cone, and the other end of the fixed rod welded in the vertical direction at the top center of the main tail vertebra is welded to the connecting disk Bottom; two symmetrical chutes are arranged on the inner side of the branch caudal vertebra, and the two branch rods are a group, the bottom ends of which are respectively connected with the sliders in the chutes, and the top is kept vertical and welded to the bottom of the connecting disc to ensure the branch The rod can move in the vertical direction; the four branch caudal vertebrae are evenly arranged around the main caudal vertebra, forming a cone with the conical part of the main caudal vertebra, so as to ensure that the branch caudal vertebrae can be closed and opened with the main caudal vertebra as the center .

The invention has the following beneficial effects: when the round bar is in the upper horizontal slot, the branch tail vertebrae are closed; when the seismometer tail cone is inserted into the soil, the round bar is drawn into the vertical slot and the round bar is moved downward. Drive the connecting disc and the branch rod to move in the vertical direction, the branch rod drives the slider to move in the chute, so that the branch caudal vertebrae are opened around, and then the round rod is drawn into the downward inclined slot to lock the seismometer caudal vertebra , and the spring is in a compressed state, which continuously provides downward thrust to the tail cone of the geophone, making the tail cone of the geophone more closely contacted with the soil, improving the coupling effect between the tail cone of the geophone and the soil, and improving the return of the geophone. wave signal reception quality, which helps to improve the resolution of seismic inversion.

Description of drawings

FIG. 1 is a schematic structural diagram of a geophone capable of improving the receiving quality of echo signals according to the present invention.

FIG. 2 is a partial cross-sectional view of a geophone capable of improving the quality of echo signal reception according to the present invention.

Figure 3 is a schematic diagram of the structure of the branched tail vertebra.

In the picture: 1. Connecting disc, 2. Connecting rod, 3. Round rod, 4. Connecting slider, 5. Cylindrical shell, 6. Shell bottom plate, 7. Main body of geophone, 8. Branch tail vertebra, 9. Slider, 10. Branch rod, 11. Main coccyx, 12. Fixed rod, 13. Spring, 14. Seismograph coccyx.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , a geophone of the present invention that can improve the quality of echo signal reception includes a geophone main body 7 and a geophone tail 14 , the geophone tail 14 It consists of connecting disc 1, connecting rod 2, round rod 3, connecting slider 4, cylindrical shell 5, shell bottom plate 6, branch tail vertebra 8, slider 9, branch rod 10, main tail vertebra 11, fixed rod 12, The spring 13 is constituted. The connecting slider 4 is installed in the cylindrical shell 5, one end of the spring 13 is connected to the center of the upper surface of the connecting slider 4, the other end is connected to the cylindrical shell 5, and is always in a compressed state, and the shell bottom plate 6 is fixed to the bottom of the cylindrical shell 5; The tail end of the rod 3 is provided with a thread, the side of the connecting slider 4 is provided with a threaded hole which is matched with the round rod 3, the cylindrical shell 5 has a similar "コ" shaped through slot, and the round rod 3 passes through the upper horizontal slot and the thread. The bottom of the connecting slider 4 is 4-6mm away from the upper surface of the bottom plate 6 of the casing to ensure that the connecting slider can slide; the two ends of the connecting rod 2 are provided with threads, and one end of the connecting rod 2 is connected with the threaded hole through the center of the connecting slider 4. The other end is connected to the threaded hole connecting the center of the disk 1 through the circular hole through the center of the bottom plate 6 of the casing; the shape of the main tail vertebra 11 is a combination of an inverted circular truncated cone and a cone, and the top center of the main tail vertebra 11 is vertical The other end of the fixed rod 12 welded in the direction is welded to the bottom of the connecting disc 1; the inner side of the branch tail 8 is provided with two symmetrical chutes, and the two branch rods 10 are a group, and their bottom ends are respectively connected with the chutes. The slider 9 is connected, the top is kept vertical, and it is welded to the bottom of the connecting disc 1 to ensure that the branch rod 10 can move in the vertical direction; The conical part of the vertebra 11 forms a cone, so as to ensure that the branch caudal vertebra 8 can be closed and opened with the main caudal vertebra 11 as the center.

Claims (4)

1. A geophone capable of improving the quality of echo signal reception, comprising a geophone main body (7) and a geophone tail cone (14), wherein the geophone tail cone (14) is formed by a connecting disc (1) ), connecting rod (2), round rod (3), connecting slider (4), cylindrical shell (5), shell bottom plate (6), branch tail cone (8), slider (9), branch rod (10) ), a main tail vertebra (11), a fixed rod (12), and a spring (13), characterized in that the connecting slider (4) is installed in the cylindrical shell (5), and one end of the spring (13) is connected to the connecting slider (5). At the center of the upper surface of the block (4), the other end is connected to the cylindrical shell (5), and is always in a compressed state, the shell bottom plate (6) is fixed on the bottom of the cylindrical shell (5); The side of the connecting slider (4) is provided with a threaded hole which is matched with the round rod (3). The threaded hole is connected, so that the bottom of the connecting slider (4) is 4-6mm away from the upper surface of the housing bottom plate (6) to ensure that the connecting slider (4) can slide; The threaded hole through the center of the block (4) is connected, and the other end is connected with the threaded hole in the center of the connecting disc (1) through the circular hole through the center of the bottom plate (6) of the casing; the shape of the main tail vertebra (11) is an upside-down A combination of a circular truncated cone and a cone, the other end of the fixed rod (12) welded in the vertical direction at the top center of the main tail vertebra (11) is welded to the bottom of the connecting disc (1); the inner side of the branch tail cone (8) Two symmetrical chutes are provided, and the two branch rods (10) are a group, the bottom ends of which are respectively connected with the sliders (9) in the chutes, the tops are kept vertical, and are welded to the bottom of the connecting disc (1). , to ensure that the branch rod (10) can move in the vertical direction; the four branch caudal vertebrae (8) are evenly arranged around the circular frustum of the main caudal vertebra (11), and form a cone with the conical part of the main caudal vertebra (11), thereby Make sure that the branch coccyx (8) can be closed and opened with the main coccyx (11) as the center. 2. A kind of geophone that can improve echo signal receiving quality according to claim 1 is characterized in that: one end of the spring (13) is connected at the center of the upper surface of the connecting slider (4), and the other end is connected at the cylinder shell (5), and is always in a compressed state. 3. A kind of geophone that can improve echo signal receiving quality according to claim 1, is characterized in that: round rod (3) tail end is provided with thread, connecting slider (4) side is provided with round rod (3) The matching threaded hole, the cylindrical shell (5) has a through notch similar to "コ", and the round rod (5) is connected with the threaded hole through the upper horizontal notch, so that the bottom of the slider (4) is connected 4-6mm from the upper surface of the housing bottom plate (6), to ensure that the connecting slider (4) can slide. 4. A kind of geophone that can improve echo signal receiving quality according to claim 1 is characterized in that: the main tail cone (11) is shaped as a combination of an inverted circular truncated cone and a cone; the branch tail cone (8 ) inside is provided with two symmetrical chute, two branch rods (10) are a group, the bottom ends of which are respectively connected with the slider (9) in the chute, the top is kept vertical, welded on the connecting disc (1). ) bottom to ensure that the branch rod (10) can move in the vertical direction; the four branch caudal vertebrae (8) are evenly arranged around the main caudal vertebra (11) circular frustum, forming a cone with the main caudal vertebra (11) conical part , so as to ensure that the branch coccyx (8) can be closed and opened with the main coccyx (11) as the center.

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