Gravimeter for geophysical exploration

Abstract

The invention discloses a gravimeter for geophysical exploration, and belongs to the technical field of geophysical exploration, the gravimeter comprises a dustproof shell, a cleaning assembly, a connecting assembly, a driving assembly and a filtering assembly, the dustproof shell comprises a shell, one side of the shell is provided with an air inlet, the other side of the shell is provided with an exhaust port, the exhaust port is internally connected with a filter screen, and the filter screen is connected with the cleaning assembly. An operation screen and a socket are arranged on the front face of the shell, a sensor assembly is arranged in the shell, the cleaning assembly comprises a rotating frame, the rotating frame is rotationally connected into the shell, two first cleaning brushes are connected into the rotating frame, and the two first cleaning brushes are in lap joint with the two sides of the shell respectively; according to the invention, the dustproof shell, the first filter plate and the second filter plate are arranged, and the dustproof shell, the first filter plate and the second filter plate cooperate with each other to perform triple blocking on external dust, so that the external dust is not liable to be attached to the surface of the sensor assembly, and the measurement precision and the service life of the sensor assembly are not affected.

Description

Technical Field

[0001] The present invention belongs to the technical field of geophysical exploration, and particularly relates to a gravimeter for geophysical exploration. Background Technique

[0002] Geophysical exploration is a discipline of theories and methods that applies physical principles to solve problems in geology and mineral resource exploration, and is a branch discipline of geophysics.

[0003] In geophysical exploration, gravimeters often need to work in complex field environments. Dust is easily attached to their surfaces or enters the instruments, and adheres to the outside of the internal sensors, affecting their measurement accuracy and service life. Therefore, a gravimeter for geophysical exploration is needed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a gravimeter for geophysical exploration to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A gravimeter for geophysical exploration, including a dust-proof shell, a cleaning component, a connection component, a driving component, and a filtering component. The dust-proof shell includes an outer shell. An air inlet is provided on one side of the outer shell, and an air outlet is provided on the other side of the outer shell. A filter screen is connected in the air outlet. An operation screen and a socket are provided on the front surface of the outer shell, and a sensor component is provided inside the outer shell;

[0006] The cleaning component includes a rotating frame, the rotating frame is rotatably connected inside the outer shell, two first cleaning brushes are connected inside the rotating frame, and the two first cleaning brushes are respectively lapped on both sides of the outer shell. The rotating frame is connected to two second cleaning brushes and two third cleaning brushes;

[0007] The connection component includes an electric push rod, the electric push rod is connected inside the rotating frame, and the movable end of the electric push rod is connected to a first friction disc;

[0008] The driving component includes two fixed frames, the bottom ends of the two fixed frames are connected to a motor, the output shaft above the motor is connected to a second friction disc, and the output shaft below the motor is connected to a fan blade;

[0009] The filtering component includes a first filter plate and a second filter plate. The first filter plate and the second filter plate are both connected inside the outer shell. The two second cleaning brushes are lapped on the upper surface of the first filter plate, and the two third cleaning brushes are lapped on the upper surface of the second filter plate.

[0010] As a preferred solution, the filter screen is set as a HEPA filter screen.

[0011] As a preferred solution, the sensor assembly is arranged directly below the fan blade, and the sensor assembly is arranged between the air inlet and the air outlet.

[0012] As a preferred solution, the second friction disc is arranged directly below the first friction disc.

[0013] As a preferred solution, the first filter plate is arranged above the second filter plate, and the bottom of the second filter plate is connected to two fixing frames.

[0014] As a preferred solution, the size of the filter holes in the first filter plate is larger than the size of the filter holes in the second filter plate.

[0015] As a preferred solution, the position of the air inlet corresponds to the position of one of the first cleaning brushes, and the position of the air outlet corresponds to the position of the other first cleaning brush.

[0016] As a preferred solution, both the first filter plate and the second filter plate are conical.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In the present invention, by providing a dust-proof shell, a first filter plate and a second filter plate, the dust-proof shell, the first filter plate and the second filter plate cooperate with each other to triple-block the dust from the outside, so that the dust from the outside is not easily attached to the surface of the sensor assembly, thereby affecting its measurement accuracy and service life;

[0019] In the present invention, control the electric push rod to extend. The extended electric push rod drives the first friction disc to move downward and then contact the second friction disc. Control the motor to drive the second friction disc to reverse. The reversed second friction disc drives the rotating frame to rotate through the first friction disc and the electric push rod. At the same time, the working motor drives the fan blade to reverse. The reversed rotating frame drives the first cleaning brush, the second cleaning brush and the third cleaning brush to rotate. The rotating first cleaning brush can clean the dust attached to the surface of the outer shell, and the rotating second cleaning brush brushes off the dust on the surface of the first filter plate, and the rotating third cleaning brush brushes off the dust on the surface of the second filter plate. The airflow generated by the reversed fan blade blows the dust brushed off the surfaces of the first filter plate and the second filter plate out through the air inlet, so that the outer shell (11), the first filter plate and the second filter plate can be self-cleaned;

[0020] Push the rotating frame, and the rotating frame drives the two first cleaning brushes to be misaligned with the air inlet and the air outlet. Control the motor to work. The rotating fan blades can extract the external gas through the air inlet. The first filter plate and the second filter plate can block dust of different sizes in the gas. The purified gas blows around the sensor assembly, so that the heat generated when the sensor assembly works can be discharged through the air outlet, making the gravimeter not prone to high temperature during operation and enabling the gravimeter to work safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the front view three-dimensional of the present invention;

[0022] Figure 2 It is a schematic cross-sectional structural diagram of the partial front view three-dimensional of the present invention;

[0023] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in;

[0024] Figure 4 It is a schematic cross-sectional structural diagram of the top view three-dimensional of the present invention.

[0025] In the figure: 1, dust-proof shell; 11, outer shell; 12, air inlet; 13, air outlet; 14, filter screen; 15, operation screen; 16, socket; 17, sensor assembly; 2, cleaning assembly; 21, rotating frame; 22, first cleaning brush; 23, second cleaning brush; 24, third cleaning brush; 3, connecting assembly; 31, electric push rod; 32, first friction disc; 4, driving assembly; 41, fixing frame; 42, motor; 43, second friction disc; 44, fan blade; 5, filtering assembly; 51, first filter plate; 52, second filter plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further describes the present invention with reference to the embodiments.

[0027] The following embodiments are used to illustrate the present invention, but cannot be used to limit the protection scope of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present invention under the premise of the concept of the present invention belongs to the protection scope required by the present invention.

[0028] Please refer to Figures 1-4, the present invention provides a gravimeter for geophysical exploration, which includes a dust-proof housing 1, a cleaning component 2, a connection component 3, a driving component 4 and a filtering component 5. The dust-proof housing 1 includes an outer housing 11. An air inlet 12 is provided on one side of the outer housing 11, and an air outlet 13 is provided on the other side of the outer housing 11. A filter screen 14 is connected in the air outlet 13. An operation screen 15 and a socket 16 are provided on the front surface of the outer housing 11. A sensor component 17 is provided inside the outer housing 11. By setting the outer housing 11, since the outer housing 11 is made of a high-strength and corrosion-resistant alloy material, the surface of the outer housing 11 is smooth, reducing dust adhesion;

[0029] The cleaning component 2 includes a rotating frame 21, and the rotating frame 21 is rotatably connected inside the outer housing 11. Two first cleaning brushes 22 are connected inside the rotating frame 21, and the two first cleaning brushes 22 are respectively lapped on both sides of the outer housing 11. The rotating frame 21 is connected to two second cleaning brushes 23 and two third cleaning brushes 24;

[0030] The connection component 3 includes an electric push rod 31, and the electric push rod 31 is connected inside the rotating frame 21. The movable end of the electric push rod 31 is connected to a first friction disc 32;

[0031] The driving component 4 includes two fixing frames 41. The bottom ends of the two fixing frames 41 are connected to a motor 42. The output shaft above the motor 42 is connected to a second friction disc 43, and the output shaft below the motor 42 is connected to a fan blade 44;

[0032] The filtering component 5 includes a first filter plate 51 and a second filter plate 52. Both the first filter plate 51 and the second filter plate 52 are connected inside the outer housing 11. The two second cleaning brushes 23 are lapped on the upper surface of the first filter plate 51, and the two third cleaning brushes 24 are lapped on the upper surface of the second filter plate 52.

[0033] The filter screen 14 is set as a HEPA filter screen 14. By setting the filter screen 14, since the filter screen 14 is arranged in the air outlet 13, when the motor 42 drives the fan blade 44 to rotate in reverse, the outside air enters the air inlet 12 under the action of the reverse rotating fan blade 44, and the filter screen 14 can block the dust in the gas entering the air inlet 12;

[0034] The sensor assembly 17 is provided directly below the fan blade 44. The sensor assembly 17 is provided between the air inlet 12 and the air outlet 13. The second friction disc 43 is provided directly below the first friction disc 32. The first filter plate 51 is provided above the second filter plate 52. The bottom of the second filter plate 52 is connected to the two fixing brackets 41. The size of the filter holes in the first filter plate 51 is larger than that of the filter holes in the second filter plate 52. The position of the air inlet 12 corresponds to the position of one of the first cleaning brushes 22. By providing the rotating frame 21 and the first cleaning brush 22, when the gravimeter is no longer in use, push the rotating frame 21, and the rotating frame 21 drives the two first cleaning brushes 22 to block the air inlet 12 and the air outlet, so that external gas is not likely to enter the housing 11 and contaminate the internal sensor assembly 17.

[0035] The position of the air outlet 13 corresponds to the position of the other first cleaning brush 22. By providing the first cleaning brush 22, the second cleaning brush 23 and the third cleaning brush 24, the bristles of the first cleaning brush 22, the second cleaning brush 23 and the third cleaning brush 24 are made of a soft and wear-resistant material.

[0036] Both the first filter plate 51 and the second filter plate 52 are conical. By providing the first filter plate 51 and the second filter plate 52, since both the first filter plate 51 and the second filter plate 52 are conical, the conical first filter plate 51 and second filter plate 52 increase the contact area with the air, improve the gas filtration efficiency of the filter assembly 5, and the gas passing through the first filter plate 51 and the second filter plate 52 can be evenly blown outside the sensor assembly 17.

[0037] The working principle and usage process of the present invention: When the gravimeter needs to be used, push the rotating frame 21, and the rotating frame 21 drives the two first cleaning brushes 22 to be misaligned with the air inlet 12 and the air outlet 13. Control the motor 42 to work. The working motor 42 drives the fan blade 44 and the second friction disc 43 to rotate. The rotating fan blade 44 can extract external gas through the air inlet 12. The extracted gas enters the housing 11 through the air inlet 12, and then sequentially passes through the first filter plate 51 and the second filter plate 52. The first filter plate 51 and the second filter plate 52 can block dust of different sizes in the gas. The purified gas is blown around the sensor assembly 17, so that the heat generated when the sensor assembly 17 is working can be discharged through the air outlet 13, so that the gravimeter is not likely to generate high temperature during the working process, and the gravimeter can work safely.

[0038] When dust needs to be cleaned, control the electric push rod 31 to extend. The extended electric push rod 31 drives the first friction disk 32 to move downward and then contact the second friction disk 43. Control the motor 42 to drive the second friction disk 43 to reverse. The reversed second friction disk 43 drives the rotating frame 21 to rotate through the first friction disk 32 and the electric push rod 31. At the same time, the working motor 42 drives the fan blade 44 to reverse. The reversed rotating frame 21 drives the first cleaning brush 22, the second cleaning brush 23 and the third cleaning brush 24 to rotate. The rotating first cleaning brush 22 can clean the dust attached to the surface of the outer shell 11, and the rotating second cleaning brush 23 brushes off the dust on the surface of the first filter plate 51, and the rotating third cleaning brush 24 brushes off the dust on the surface of the second filter plate 52;

[0039] The airflow generated by the reversed fan blade 44 blows out the dust brushed off the surfaces of the first filter plate 51 and the second filter plate 52 through the air inlet 12, so that the outer shell 11, the first filter plate 51 and the second filter plate 52 can be self-cleaned.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gravimeter for geophysical exploration, comprising a dust cover (1), a cleaning assembly (2), a connecting assembly (3), a driving assembly (4) and a filtering assembly (5), characterized in that: The dustproof housing (1) comprises an outer shell (11), an air inlet (12) is provided on one side of the outer shell (11), an air outlet (13) is provided on the other side of the outer shell (11), a filter (14) is connected to the air outlet (13), an operation screen (15) and a socket (16) are provided on the front side of the outer shell (11), and a sensor assembly (17) is provided in the outer shell (11); The cleaning assembly (2) comprises a rotating frame (21), the rotating frame (21) is rotatably connected in the housing (11), two first cleaning brushes (22) are connected in the rotating frame (21), the two first cleaning brushes (22) are respectively overlapped on two sides of the housing (11), and the rotating frame (21) is connected to two second cleaning brushes (23) and two third cleaning brushes (24); The connecting assembly (3) comprises an electric push rod (31), the electric push rod (31) is connected inside the rotating frame (21), and the movable end of the electric push rod (31) is connected to the first friction disk (32); The driving assembly (4) comprises two fixing frames (41), the bottom ends of the two fixing frames (41) are connected to a motor (42), an output shaft above the motor (42) is connected to a second friction disk (43), and an output shaft below the motor (42) is connected to a fan blade (44); The filter assembly (5) comprises a first filter plate (51) and a second filter plate (52), wherein the first filter plate (51) and the second filter plate (52) are both connected to the housing (11), two second cleaning brushes (23) are overlapped on the upper surface of the first filter plate (51), and two third cleaning brushes (24) are overlapped on the upper surface of the second filter plate (52).

2. A gravimeter for geophysical exploration according to claim 1, characterized in that: The filter (14) is configured as a HEPA filter (14).

3. A gravimeter for geophysical exploration according to claim 1, characterized in that: The sensor assembly (17) is arranged directly below the fan blade (44), and the sensor assembly (17) is arranged between the air inlet (12) and the air outlet (13).

4. A gravimeter for geophysical exploration according to claim 1, characterized in that: The second friction disk (43) is arranged directly below the first friction disk (32).

5. A gravimeter for geophysical exploration according to claim 1, characterized in that: The first filter plate (51) is arranged above the second filter plate (52), and the bottom of the second filter plate (52) is connected to two fixing frames (41).

6. A gravimeter for geophysical exploration according to claim 1, characterized in that: The size of the filter holes in the first filter plate (51) is greater than the size of the filter holes in the second filter plate (52).

7. A gravimeter for geophysical exploration according to claim 1, characterized in that: The position of the air inlet (12) corresponds to the position of one of the first cleaning brushes (22), and the position of the air outlet (13) corresponds to the position of the other first cleaning brush (22).

8. A gravimeter for geophysical exploration according to claim 1, characterized in that: The first filter plate (51) and the second filter plate (52) are both configured to be conical.

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