Gravity exploration instrument

Abstract

The utility model discloses a gravity exploration instrument which comprises a base, a groove is formed in the upper surface of the base, a gravity measurement instrument is placed in the middle of the groove, and the gravity exploration instrument further comprises a fixing mechanism. The fixing mechanism comprises receding grooves, rack plates, telescopic columns and arc-shaped plates, the receding grooves are formed in the inner walls of the grooves correspondingly, the rack plates are slidably connected into the receding grooves correspondingly, and the telescopic columns are fixedly connected to the sides, close to the center of the base, of the rack plates correspondingly; the sides, close to the center of the base, of the two telescopic columns located on the same rack plate are each fixedly connected with an arc-shaped plate, the inner arc faces of the four arc-shaped plates are attached to the outer surface of a gravity measuring instrument, a single-chip microcomputer is arranged outside the base, and the input end of the single-chip microcomputer is electrically connected with an external power source. The gravity exploration instrument can be kept stable in the using process, it is ensured that measurement data accurately reflect underground gravity anomaly, and the monitoring data deviation, caused by vibration, of the gravity exploration instrument is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to gravity prospecting equipment technical field, concretely is a gravity prospecting instrument. BACKGROUND

[0002] Gravity prospecting instrument is the key equipment of geophysical exploration, is used for accurately measuring the subtle change of earth surface gravity acceleration, since the density of different geological bodies in the ground exists difference, will lead to the abnormality of the gravity field in the region, and gravity prospecting instrument is just through capturing these abnormalities to carry out the work, plays an important role in the face of mineral resources exploration, address mechanism research and engineering geological survey etc.

[0003] The existing gravity prospecting instrument, when using, first place the base horizontally in the upper end of the area to be measured, then place the gravity prospecting instrument on the base through lifting the handle outside the prospecting instrument to carry out prospecting;

[0004] The existing gravity prospecting instrument, in the measurement process, personnel walk, nearby vehicle driving and even slight external force effect, such as breeze, inadvertent touch, can make the gravity prospecting instrument on the base position deviation, to ensure the effectiveness of the measurement data, the operator needs to pay attention to the state of gravity prospecting instrument, once the instrument position changes or appears unstable condition, needs to pause measurement and reposition, for this purpose, we propose a kind of gravity prospecting instrument. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a gravity prospecting instrument, which can keep the gravity prospecting instrument stable during use, ensure that the measurement data accurately reflects the underground gravity anomaly, and avoid deviation of the monitoring data of the gravity prospecting instrument caused by vibration, thereby effectively solving the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a gravity prospecting instrument, including base, the upper surface of the base is provided with a groove, the middle part of the groove is placed with a gravity measuring instrument, further including fixing mechanism;

[0007] The fixing mechanism comprises an avoidance groove, a rack plate, an extension column and an arc plate, the inner wall of the groove is provided with an avoidance groove, the inner part of the avoidance groove is slidably connected with a rack plate, the side close to the center of the base of the rack plate is fixedly connected with an extension column, the two extension columns on the same rack plate are fixedly connected with an arc plate on the side close to the center of the base, the inner arc surface of the four arc plates is attached to the outer surface of a gravity measuring instrument, which can keep the gravity prospecting instrument stable during use, ensure that the measurement data accurately reflects the underground gravity anomaly, and avoid deviation of the monitoring data of the gravity prospecting instrument caused by vibration.

[0008] Further, the outside of the base is provided with a single-chip microcomputer, the input end of the single-chip microcomputer is electrically connected with an external power supply, and each electric appliance is electrically connected.

[0009] Further, the fixing mechanism further comprises springs, the springs are movably sleeved on the outside of the telescopic columns, and the springs are located between the side, away from the center of the base, of the arc-shaped plates and the side, close to the center of the base, of the rack plates, so that damage to the gravity measuring instrument is prevented.

[0010] Further, the fixing mechanism further comprises rotating columns, gears and an internal tooth ring, rotating columns are rotatably connected between the upper and lower inner walls of the grooves, the gears are fixedly sleeved on the outside of the rotating columns, the gears are in meshing connection with the rack plates on the same side, the internal tooth ring is rotatably connected to the bottom wall of the groove, and the three gears are in meshing connection with the internal tooth ring, so that synchronous movement is realized.

[0011] Further, the fixing mechanism further comprises a motor, the motor is arranged on the upper surface of the base, the bottom end of the output shaft of the motor is fixedly connected with the top end of the rotating column at the forefront, the input end of the motor is electrically connected with the output end of the single-chip microcomputer, and fixed driving is provided.

[0012] Further, the bottom end of the base is provided with supporting blocks, the inside of each supporting block is rotatably connected with a supporting cylinder, the side, away from the center of the base, of each supporting block is provided with a blocking rod, and the bottom end of each supporting cylinder is screw-connected with a supporting leg, so that stable support is provided.

[0013] Further, the gravity measuring instrument is fixedly connected with a handle at the upper end of the outer surface, so that the movement of the gravity exploration instrument is facilitated.

[0014] Compared with the prior art, the gravity exploration instrument has the following advantages.

[0015] The motor drives the rotation of the gear on the left front side, drives the rotation of the internal tooth ring in meshing, drives the rotation of the other gears, drives the rack plate in meshing to move centripetally in the avoidance groove, realizes the fixation of the gravity measuring instrument, guarantees the stability of the gravity measuring instrument during the working process, and prevents the displacement of the gravity measuring instrument caused by external force, so that the measurement data is not standard. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the utility model in section;

[0018] Figure 3 It is a structural schematic view of the utility model at A place in amplification;

[0019] Figure 4 It is a structural schematic view of the supporting block and the supporting cylinder of the utility model.

[0020] In the figure: 1 base, 2 gravity measuring instrument, 3 groove, 4 handle, 5 single-chip microcomputer, 6 fixing mechanism, 61 avoiding groove, 62 rack plate, 63 telescopic column, 64 spring, 65 arc plate, 66 rotating column, 67 gear, 68 inner tooth ring, 69 motor, 7 supporting block, 8 supporting cylinder, 9 supporting leg. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 The embodiment provides a technical scheme: a gravity exploration instrument, which comprises a base 1, the upper surface of the base 1 is provided with a groove 3, the middle part of the groove 3 is placed with a gravity measuring instrument 2 (when the gravity changes, the gravity moment of the swing rod and the heavy load connected on the quartz spring will change, the balance with the main spring elastic moment is broken, the swing rod deviates from the horizontal position, the indicating wire deflects, the "bright line" formed by the indicating wire on the scale piece can be observed through the optical system, at this time, the length of the measuring spring is adjusted, the temperature compensation rod is slightly deflected around the measuring torsion wire, the main spring elastic moment is changed, and the swing rod returns to the zero position, the length change of the measuring spring is displayed through the screw micrometer reader, and the difference between the two zero point readings represents the gravity change), further comprising a fixing mechanism 6, the outside of the base 1 is provided with a single-chip microcomputer 5, the input end of the single-chip microcomputer 5 is electrically connected with an external power supply, the bottom end of the base 1 is respectively provided with a supporting block 7, the inside of the supporting block 7 is respectively rotationally connected with a supporting cylinder 8, the side, away from the center of the base 1, of the supporting block 7 is provided with a stop rod, the bottom end of the supporting cylinder 8 is respectively threadedly connected with a supporting leg 9, the outer surface of the gravity measuring instrument 2 is fixedly connected with a handle 4 at the upper end, when the gravity exploration instrument is needed for gravity detection, first, the supporting cylinder 8 is rotated outward, so that the supporting cylinder 8 is expanded to the maximum outward (the upper end of the side, away from the base 1, of the supporting cylinder 8 is in contact with the inside of the stop rod, and the stop rod supports the supporting cylinder 8), the supporting leg 9 is adjusted to a proper height, the supporting leg 9 is inserted into the ground, so that the base 1 is adjusted to be horizontal, the gravity measuring instrument 2 is placed on the upper surface of the base 1 through the handle 4, and the gravity measuring instrument 2 is taken out from the inside of the groove 3 through the handle 4;

[0023] The fixing mechanism 6 comprises an avoidance groove 61, a rack plate 62, an extension column 63 and an arc plate 65, the inner wall of the recess 3 is respectively provided with the avoidance groove 61, the inner part of the avoidance groove 61 is respectively connected with the rack plate 62 in sliding mode, the rack plate 62 is respectively fixedly connected with the extension column 63 on the side close to the center of the base 1, the two extension columns 63 on the same rack plate 62 are fixedly connected with an arc plate 65 on the side close to the center of the base 1, the inner arc surface of the four arc plates 65 is attached to the outer surface of a gravity measuring instrument 2, the fixing mechanism 6 further comprises a spring 64, the spring 64 is movably sleeved on the outside of the extension column 63, and the spring 64 is located between the side, away from the center of the base 1, of the arc plate 65 and the side, close to the center of the base 1, of the rack plate 62, the fixing mechanism 6 further comprises a rotating column 66, a gear 67 and an inner tooth ring 68, the rotating column 66 is rotatably connected between the upper and lower inner walls of the recess 3, the gear 67 is fixedly sleeved on the outside of the rotating column 66, the gear 67 is in meshing connection with the rack plate 62 on the same side, the inner tooth ring 68 is rotatably connected to the bottom wall of the recess 3, and the three gears 67 are in meshing connection with the inner tooth ring 68, the fixing mechanism 6 further comprises a motor 69, the motor 69 is arranged on the front side of the upper surface of the base 1, the bottom end of the output shaft of the motor 69 is fixedly connected with the top end of the rotating column 66 on the most front side, and the input end of the motor 69 is electrically connected with the output end of the single-chip microcomputer 5. Through the regulation and control of the single-chip microcomputer 5, the motor 69 starts to operate, the output shaft drives the rotating column 66 on the most front side to start rotating, and then the gear 67 fixedly sleeved on the outside drives the meshing inner tooth ring 63 to start rotating, so that the other two rotating columns 66 drive the gears 67 to start rotating. While the gears 67 rotate, the meshing rack plates 68 slide in the avoidance grooves 61. When the arc plate 65 on the side close to the center of the base 1 is in contact with the outer surface of the gravity measuring instrument 2, the spring 64 is contracted, so that the gravity measuring instrument 2 is fixed to the inside of the recess 3, and the position deviation during use is prevented. The gravity measuring instrument 2 is used for monitoring the gravity of a specified area. After the gravity measurement is completed, the single-chip microcomputer 5 controls the motor 69 to reverse, so that the rotating column 66 on the most front side drives the inner tooth ring 68 to reverse through the external gear 67, so that the inner tooth ring 66 drives the meshing gear 67 to reverse, so that the rack plate 62 moves in the avoidance groove 61 to the end away from the gravity detector 2, and the arc plate 65 moves away from the outside of the gravity measuring instrument 2.

[0024] The working principle of the gravity exploration instrument is as follows: when the gravity exploration instrument is needed for gravity detection, first, the support cylinder 8 is rotated outward to the maximum extent (the upper end of the side of the support cylinder 8 away from the base 1 is in contact with the inner side of the stop lever, and the stop lever limits and supports the support cylinder 8), the support leg 9 is twisted to adjust to a suitable height, the support leg 9 is inserted into the ground to adjust the base 1 to be horizontal, the gravity measuring instrument 2 is placed on the upper surface of the base 1 through the lifting handle 4, the motor 69 starts to operate under the control of the single-chip microcomputer 5, the output shaft drives the frontmost rotating column 66 to start rotating, and then the gear 67 fixed outside is driven to start rotating, the other two rotating columns 66 drive the gear 67 to start rotating, and the rack plate 68 engaged with the gear 67 slides in the avoidance groove 61 at the same time, when the arc-shaped plate 65 is close to the side of the center of the base 1 and in contact with the outer surface of the gravity measuring instrument 2, the spring 64 is contracted (to prevent damage to the appearance of the gravity measuring instrument 2 due to excessive force), the gravity measuring instrument 2 is fixed in the recess 3 to prevent position deviation during use, the gravity measuring instrument 2 is used to monitor the gravity of the specified area, after the gravity measurement is completed, the single-chip microcomputer 5 controls the motor 69 to reverse, the frontmost rotating column 66 drives the inner tooth ring 68 to reverse through the external gear 67, the inner tooth ring 66 drives the engaged gear 67 to reverse, and the rack plate 62 moves away from the gravity detector 2 at the end of the avoidance groove 61, so that the arc-shaped plate 65 is away from the outside of the gravity measuring instrument 2, and the gravity measuring instrument 2 is taken out from the inside of the recess 3 through the lifting handle 4.

[0025] It is worth noting that the single-chip microcomputer 5 and the motor 69 disclosed in the above embodiments can be selected as LPC1768 and JGY370, respectively, and the single-chip microcomputer 5 controls the motor 69 to work by using the method commonly used in the prior art.

[0026] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification and the drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A gravity exploration instrument, comprising a base (1), the upper surface of the base (1) is provided with a groove (3), and a gravity measuring instrument (2) is arranged in the middle of the groove (3), characterized in that: Also include fixed mechanism (6); The fixed mechanism (6) comprises the recess (3) and the inner wall of the recess (3) is provided with the escape groove (61), the rack plate (62), the telescopic column (63) and the arc plate (65), the escape groove (61) is respectively connected with the rack plate (62) on the inner part, the rack plate (62) is respectively fixedly connected with the telescopic column (63) on the side close to the center of the base (1), the two telescopic columns (63) on the same rack plate (62) are fixedly connected with an arc plate (65) on the side close to the center of the base (1), and the inner arc surface of the four arc plates (65) is attached to the outer surface of the gravity measuring instrument (2).

2. A gravity exploration instrument according to claim 1, wherein: The base (1) is provided with a single-chip microcomputer (5) outside, and the input end of the single-chip microcomputer (5) is electrically connected with an external power supply.

3. A gravity exploration instrument according to claim 1, wherein: The fixed mechanism (6) further comprises a spring (64), and the spring (64) is movably sleeved on the outside of the telescopic column (63), and the spring (64) is located between the side, away from the center of the base (1), of the arc plate (65) and the side, close to the center of the base (1), of the rack plate (62).

4. A gravity exploration instrument according to claim 2, wherein: The fixed mechanism (6) further comprises a rotating column (66), a gear (67) and an inner tooth ring (68), the rotating column (66) is rotatably connected between the upper and lower inner walls of the recess (3), the gear (67) is fixedly sleeved on the outer part of the rotating column (66), the gear (67) is uniformly and symmetrically connected with the rack plate (62) on the same side, and the inner tooth ring (68) is rotatably connected to the bottom wall of the recess (3).

5. A gravity exploration instrument according to claim 4, wherein: The fixed mechanism (6) further comprises a motor (69), and the motor (69) is arranged on the front side of the upper surface of the base (1), the output shaft bottom end of the motor (69) is fixedly connected with the top end of the rotating column (66) on the most front side, and the input end of the motor (69) is electrically connected with the output end of the single-chip microcomputer (5).

6. A gravity exploration instrument according to claim 1, wherein: The base (1) is provided with a support block (7) at the bottom end, the inner part of the support block (7) is rotatably connected with a support cylinder (8), the side, away from the center of the base (1), of the support block (7) is provided with a blocking rod, and the bottom end of the support cylinder (8) is threadedly connected with a supporting leg (9).

7. A gravity exploration instrument according to claim 1, wherein: The outer surface of the gravity measuring instrument (2) is fixedly connected with a handle (4) at the upper end.

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