阅读说明：本技术 一种方便调节的水下测量磁通门传感器 (Underwater measurement fluxgate sensor convenient to adjust ) 是由 胡加林 吴洪厂 李良成 于 2021-10-28 设计创作，主要内容包括：本发明涉及磁通门传感器技术领域,具体的说是一种方便调节的水下测量磁通门传感器,包括主体,所述主体安装有滑动结构,所述滑动结构连接有支撑结构和限位结构,所述主体上设有转动结构和伸缩结构；通过支撑结构可将装置与岩石缝隙的两侧抵触,从而将装置初步固定在岩石缝隙中,使传感器处于水平状态并保证传感器与磁场方向不便,通过限位结构限制支撑结构的运动,避免支撑结构滑动,便于进一步固定,通过滑动结构可将支撑结构进一步与岩石缝隙两侧固定牢固,从而避免装置晃动,通过转动结构便于对传感器的角度进行调节,从而对传感器与磁场的方向进行一定的调节,通过伸缩结构可将传感器伸入到岩石缝隙中,便于对岩石缝隙内部进一步测量。(The invention relates to the technical field of fluxgate sensors, in particular to a fluxgate sensor convenient to adjust and used for underwater measurement, which comprises a main body, wherein a sliding structure is arranged on the main body, the sliding structure is connected with a supporting structure and a limiting structure, and a rotating structure and a telescopic structure are arranged on the main body; can contradict the both sides in device and rock gap through bearing structure, thereby tentatively fix the device in the rock gap, it is inconvenient with the magnetic field direction to make the sensor be in the horizontality and guarantee the sensor, motion through limit structure restriction bearing structure, avoid bearing structure to slide, be convenient for further fix, can further fix bearing structure with rock gap both sides firmly through sliding structure, thereby avoid the device to rock, be convenient for adjust the angle of sensor through rotating-structure, thereby carry out certain regulation to the direction in sensor and magnetic field, can stretch into the rock gap with the sensor through extending structure, be convenient for to rock gap inside further measurement.)

1. The underwater measurement fluxgate sensor convenient to adjust is characterized by comprising a main body (1), wherein the main body (1) is provided with a sliding structure (2), the sliding structure (2) is connected with a supporting structure (3) and a limiting structure (5), the main body (1) is provided with a rotating structure (4) and a telescopic structure (6), the sliding structure (2) comprises a sliding plate (21), the main body (1) is connected with the sliding plate (21) in a sliding manner, the main body (1) is connected with a first lead screw (22) in a rotating manner, the first lead screw (22) is connected with a first sliding block (24) in a threaded manner, the sliding plate (21) is provided with a sliding groove (26), the first sliding block (24) is in sliding fit with the sliding plate (21) along the sliding groove (26), the first lead screw (22) is fixedly connected with a first knob (23), and the first sliding block (24) is connected with a first pulley (25) in a rotating manner, the first pulley (25) is abutted against the sliding groove (26), the supporting structure (3) comprises a sliding rod (31), the sliding plate (21) is slidably connected with the sliding rod (31), a first spring (33) is abutted against the sliding rod (31) and the sliding plate (21), the sliding plate (21) is slidably connected with a limiting rod (34), a second spring (35) is abutted against the limiting rod (34) and the sliding plate (21), a limiting groove (36) is arranged on the sliding rod (31), and the limiting rod (34) is abutted against the limiting groove (36).

2. The underwater measuring fluxgate sensor convenient to adjust as claimed in claim 1, wherein: the sliding rod (31) is connected with a rubber ring (32) in a sliding mode, and the rubber ring (32) is fixedly connected with the sliding plate (21).

3. The underwater measuring fluxgate sensor convenient to adjust as claimed in claim 2, wherein: the limiting structure (5) comprises a second screw rod (51), the sliding plate (21) is in threaded connection with the second screw rod (51), the second screw rod (51) is rotatably connected with a second sliding block (53), the second sliding block (53) is in sliding connection with the sliding plate (21), the second sliding block (53) is abutted against the sliding rod (31), and the limiting rod (34) is abutted against the second sliding block (53).

4. The underwater measuring fluxgate sensor convenient to adjust as claimed in claim 3, wherein: second lead screw (51) fixedly connected with dwang (52), dwang (52) are cylindricly.

5. The underwater measuring fluxgate sensor convenient to adjust as claimed in claim 4, wherein: revolution mechanic (4) are including rotating bucket (42), main part (1) is rotated and is connected with and rotates bucket (42), rotate bucket (42) fixedly connected with worm wheel (45), main part (1) is rotated and is connected with worm (44), worm wheel (45) and worm (44) meshing.

6. The underwater measuring fluxgate sensor convenient to adjust as claimed in claim 5, wherein: the main body (1) and the rotating barrel (42) are provided with scales (43), and the worm (44) is fixedly connected with a second knob (41).

7. The underwater measuring fluxgate sensor convenient to adjust as claimed in claim 6, wherein: extending structure (6) include third lead screw (62), it is connected with third lead screw (62) to rotate bucket (42), third lead screw (62) fixedly connected with handle (61), it has fixed block (63) to rotate bucket (42) internal fixedly connected with, fixed block (63) and third lead screw (62) rotate to be connected, third lead screw (62) threaded connection promotes piece (64), fixed block (63) sliding connection has a plurality of first telescopic links (65) and second telescopic link (66), and is a plurality of the rotation is connected between first telescopic link (65) and second telescopic link (66), it rotates with first telescopic link (65) and second telescopic link (66) to promote piece (64) and rotate and connect, first telescopic link (65) and second telescopic link (66) rotate and are connected with sensor probe (67).

Technical Field

The invention relates to the technical field of fluxgate sensors, in particular to a fluxgate sensor convenient to adjust and used for underwater measurement.

Background

A fluxgate sensor is a sensor for measuring a weak magnetic field by utilizing the nonlinear relation between the magnetic induction intensity and the magnetic field intensity of a high-permeability iron core in a measured magnetic field under the saturation excitation of an alternating magnetic field, and the fluxgate sensor convenient to adjust is required to be used when the weak magnetic field is measured in a rock gap underwater.

However, when the traditional underwater measurement fluxgate sensor measures a rock gap underwater, the traditional underwater measurement fluxgate sensor is inconvenient to fix the fluxgate sensor on a rock, needs to be manually held, is easy to influence measurement accuracy, and is inconvenient to adjust the sensor and the magnetic field direction.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the underwater measuring fluxgate sensor convenient to adjust.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a convenient underwater measurement fluxgate sensor of adjusting, includes the main part, sliding construction is installed to the main part, sliding construction is connected with bearing structure and limit structure, be equipped with rotating-structure and extending structure in the main part, sliding construction includes the sliding plate, main part sliding connection has the sliding plate, the main part rotates and is connected with first lead screw, first lead screw threaded connection has first slider, be equipped with the spout on the sliding plate, first slider is along spout and sliding plate sliding fit, first lead screw fixedly connected with knob, first slider rotates and is connected with first pulley, first pulley and spout are contradicted.

Specifically, the supporting structure includes a sliding rod, the sliding plate is connected with the sliding rod in a sliding mode, a first spring is abutted between the sliding rod and the sliding plate, the sliding plate is connected with a limiting rod in a sliding mode, a second spring is abutted between the limiting rod and the sliding plate, a limiting groove is formed in the sliding rod, the limiting rod is abutted with the limiting groove, the sliding rod is connected with a rubber ring in a sliding mode, and the rubber ring is fixedly connected with the sliding plate.

Specifically, limit structure includes the second lead screw, sliding plate threaded connection has the second lead screw, the second lead screw rotates and is connected with the second slider, second slider and sliding plate sliding connection, the second slider is contradicted with the slide bar, gag lever post and second slider are contradicted, second lead screw fixedly connected with dwang, the dwang is cylindricly.

Specifically, revolution mechanic is including rotating the bucket, the main part is rotated and is connected with and rotates the bucket, it is connected with the worm wheel to rotate bucket fixedly connected with, the main part is rotated and is connected with the worm, worm wheel and worm meshing, be carved with the scale on main part and the rotation bucket, worm fixedly connected with second knob.

Specifically, extending structure includes the third lead screw, it is connected with the third lead screw to rotate the bucket, third lead screw fixedly connected with handle, rotate fixedly connected with fixed block in the bucket, fixed block and third lead screw rotate to be connected, third lead screw threaded connection promotes the piece, fixed block sliding connection has a plurality of first telescopic links and second telescopic link, and is a plurality of mutual rotation is connected between first telescopic link and the second telescopic link, promote piece and first telescopic link, second telescopic link and rotate and connect, first telescopic link and second telescopic link rotate and are connected with the sensor probe.

The invention has the beneficial effects that:

(1) according to the conveniently-adjusted underwater measurement fluxgate sensor, the sliding structure is arranged on the main body, and the supporting structure can be further and firmly fixed with two sides of a rock gap through the sliding structure, so that the device is prevented from shaking, namely: rotate first knob, it rotates to drive first lead screw, because first lead screw threaded connection has first slider, be equipped with the spout on the sliding plate, first slider is along spout and sliding plate sliding fit, so drive first slider to first knob direction motion, thereby promote the sliding plate to deviating from in the main part direction motion, thereby further make slide bar and rock gap both sides fixed firm, because the slider rotates and is connected with first pulley, first pulley and spout are contradicted, thereby make first slider slip easier, the first knob of antiport, make first lead screw drive first slider deviate from in first knob direction motion, thereby inside taking in the main part with the sliding plate, thereby make things convenient for the device to detach from the rock gap more.

(2) According to the conveniently-adjusted underwater measurement fluxgate sensor, the sliding structure is connected with the supporting structure and the limiting structure, the device can be abutted against two sides of a rock gap through the supporting structure, so that the device is preliminarily fixed in the rock gap, the sensor is in a horizontal state, the sensor is ensured to be inconvenient to the direction of a magnetic field, the movement of the supporting structure is limited through the limiting structure, the sliding of the supporting structure is avoided, and the further fixing is facilitated, namely: when a fluxgate sensor is used for measuring a small rock gap underwater, the device needs to be fixed, the device is horizontally placed in the rock gap, the rotating rod is rotated to drive the second screw rod to rotate, the limit of the slide rod is relieved, because the first spring is abutted between the slide rod and the sliding plate, the slide rod is pushed towards the direction deviating from the sliding plate under the action of the first spring, so that the slide rod extends out, the slide rod is abutted against the side wall of the rock gap, thereby preliminarily fixing the device, after the measurement is completed, the slide rod is pushed towards the main body direction, because the sliding plate is slidably connected with a limit rod, a second spring is abutted between the limit rod and the sliding plate, a limit groove is arranged on the slide rod, the limit rod is abutted against the limit groove, when the slide rod moves into the sliding plate, the limit rod is parallel to the limit groove, and the limit rod is abutted against the limit groove under the action of the second spring, thereby limiting the slide bar, making the first spring unable to push the slide bar out, thereby taking the slide bar into the slide plate, the slide bar is connected with the rubber ring in a sliding way, the rubber ring is fixedly connected with the slide plate, thereby preventing water from entering the slide bar, in order to limit the motion of the slide bar, the rotating rod is rotated, the second lead screw is driven to rotate, because the second lead screw is connected with the slide plate in a threaded way, the second lead screw is driven to move towards the second slide block, because the second lead screw is connected with the second slide block in a rotating way, thereby pushing the second lead screw to collide with the slide bar, thereby limiting the motion of the slide bar, the slide bar can not be retracted into the slide plate, the rotating rod is rotated reversely, the second lead screw is driven to move towards the rotating rod, thereby separating the second slide block from the slide bar, thereby pushing the slide bar into the slide plate, under the cooperation of the limiting rod and the second spring, the limiting rod will collide with the limiting groove, thereby limiting the motion of the slide bar, when the limit of the slide bar by the limit rod is required to be removed, the rotating rod continues to rotate reversely, the second screw rod drives the second sliding block to move towards the rotating rod, the limit rod is abutted against the second sliding block, so that the limit rod is driven to be separated from the limit groove, the slide bar is pushed out from the sliding plate under the action of the first spring, the slide bar is convenient to fix, and the slide bar is prevented from sliding to influence the work of the device when the sensor probe works.

(3) The invention relates to a conveniently-adjusted underwater measurement fluxgate sensor, wherein a main body is provided with a rotating structure and a telescopic structure, the rotating structure is convenient for adjusting the angle of the sensor, so that the direction of the sensor and a magnetic field is adjusted to a certain extent, the sensor can extend into a rock gap through the telescopic structure, and the further measurement of the inside of the rock gap is facilitated, namely: when the angle of the sensor probe needs to be adjusted, the second knob is rotated to drive the worm to rotate and drive the worm wheel to rotate, the rotating barrel is fixedly connected with the worm wheel to drive the rotating barrel to rotate, the rotating angle of the rotating barrel can be determined according to the scale, so that the angle of the sensor probe can be conveniently adjusted, the direction of the sensor probe and the magnetic field can be adjusted to a certain degree, when the sensor probe needs to be inserted into a rock gap, the handle is rotated to drive the third lead screw to rotate, the third lead screw is rotatably connected with the fixed block, the third lead screw is in threaded connection with the pushing block, so that the pushing block is pushed to move in the direction away from the handle, the fixed block is slidably connected with the first telescopic rods and the second telescopic rods, the first telescopic rods and the second telescopic rods are rotatably connected with each other, the pushing block is rotatably connected with the first telescopic rods and the second telescopic rods, so will make first telescopic link and second telescopic link to the motion of third lead screw direction to make the contained angle between first telescopic link and the second telescopic link change, make first telescopic link and second telescopic link to deviating from in the motion of main part direction, first telescopic link and second telescopic link rotate and are connected with the sensor probe, thereby stretch into the rock with the sensor probe inside, be convenient for to the inside further measurement of rock gap.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram illustrating an overall structure of a preferred embodiment of an easily adjustable underwater metrology fluxgate sensor according to the present invention;

FIG. 2 is a schematic view showing a connection structure of the sliding plate and the sliding bar according to the present invention;

FIG. 3 is an enlarged view of the part A shown in FIG. 2;

FIG. 4 is a schematic view of the connection structure of the sliding plate and the second sliding block according to the present invention;

FIG. 5 is an enlarged view of the structure of the portion B shown in FIG. 4;

FIG. 6 is a schematic view of the connection structure of the rotary barrel and the sensor probe according to the present invention;

FIG. 7 is an enlarged view of the structure of the portion C shown in FIG. 6;

fig. 8 is a schematic view of the connection structure between the worm and the worm wheel according to the present invention.

In the figure: 1. a main body; 2. a sliding structure; 21. a sliding plate; 22. a first lead screw; 23. a first knob; 24. a first slider; 25. a first pulley; 26. a chute; 3. a support structure; 31. a slide bar; 32. a rubber ring; 33. a first spring; 34. a limiting rod; 35. a second spring; 36. a limiting groove; 4. a rotating structure; 41. a second knob; 42. rotating the barrel; 43. a scale; 44. a worm; 45. a worm gear; 5. a limiting structure; 51. a second lead screw; 52. rotating the rod; 53. a second slider; 6. a telescopic structure; 61. a handle; 62. a third screw rod; 63. a fixed block; 64. a pushing block; 65. a first telescopic rod; 66. a second telescopic rod; 67. a sensor probe.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 8, the fluxgate sensor convenient for adjustment comprises a main body 1, wherein the main body 1 is provided with a sliding structure 2, the sliding structure 2 is connected with a supporting structure 3 and a limiting structure 5, and the main body 1 is provided with a rotating structure 4 and a telescopic structure 6.

Specifically, the sliding structure 2 includes a sliding plate 21, the main body 1 is slidably connected with the sliding plate 21, the main body 1 is rotatably connected with a first lead screw 22, the first lead screw 22 is in threaded connection with a first sliding block 24, the sliding plate 21 is provided with a sliding chute 26, the first sliding block 24 is in sliding fit with the sliding plate 21 along the sliding chute 26, the first lead screw 22 is fixedly connected with a first knob 23, the first sliding block 24 is rotatably connected with a first pulley 25, and the first pulley 25 is abutted against the sliding chute 26; can further fix bearing structure 3 firmly with rock gap both sides through sliding construction 2 to avoid the device to rock, promptly: rotate first knob 23, drive first lead screw 22 and rotate, because first lead screw 22 threaded connection has first slider 24, be equipped with spout 26 on the sliding plate 21, first slider 24 is along spout 26 and sliding plate 21 sliding fit, so drive first slider 24 to first knob 23 direction motion, thereby promote sliding plate 21 to move dorsad in main part 1 direction, thereby further make slide bar 31 and rock gap both sides fixed firm, because the slider rotates and is connected with first pulley 25, first pulley 25 and spout 26 conflict, thereby make first slider 24 slide easier, the first knob 23 of antiport, make first lead screw 22 drive first slider 24 deviate from in first knob 23 direction motion, thereby inside income main part 1 with sliding plate 21, thereby make things convenient for the device to detach from the rock gap more.

Specifically, the supporting structure 3 includes a sliding rod 31, the sliding plate 21 is slidably connected with the sliding rod 31, a first spring 33 is abutted between the sliding rod 31 and the sliding plate 21, the sliding plate 21 is slidably connected with a limiting rod 34, a second spring 35 is abutted between the limiting rod 34 and the sliding plate 21, a limiting groove 36 is arranged on the sliding rod 31, the limiting rod 34 is abutted with the limiting groove 36, the sliding rod 31 is slidably connected with a rubber ring 32, and the rubber ring 32 is fixedly connected with the sliding plate 21; can contradict the device with the both sides in rock gap through bearing structure 3 to fix the device in rock gap tentatively, make the sensor be in the horizontality and guarantee that sensor and magnetic field direction are inconvenient, promptly: when a fluxgate sensor is used for measuring a small rock gap underwater, the device needs to be fixed, the device is horizontally placed in the rock gap, the rotating rod 52 is rotated to drive the second screw rod 51 to rotate, the limit of the slide rod 31 is released, because the first spring 33 is abutted between the slide rod 31 and the slide plate 21, the slide rod 31 is pushed towards the direction away from the slide plate 21 under the action of the first spring 33, so that the slide rod 31 extends out, the slide rod 31 is abutted with the side wall of the rock gap, thereby primarily fixing the device, after the device is measured, the slide rod 31 is pushed towards the main body 1, because the slide plate 21 is slidably connected with the limit rod 34, the second spring 35 is abutted between the limit rod 34 and the slide plate 21, the limit groove 36 is arranged on the slide rod 31, the limit rod 34 is abutted with the limit groove 36, when the slide rod 31 moves into the slide plate 21, the limit rod 34 is parallel to the limit groove 36, under the action of the second spring 35, the limit rod 34 is pushed to abut against the limit groove 36, so that the sliding rod 31 is limited, the sliding rod 31 cannot be pushed out by the first spring 33, the sliding rod 31 is taken into the sliding plate 21, the sliding rod 31 is slidably connected with the rubber ring 32, and the rubber ring 32 is fixedly connected with the sliding plate 21 to prevent water from entering the sliding rod 31.

Specifically, the limiting structure 5 includes a second lead screw 51, the sliding plate 21 is in threaded connection with the second lead screw 51, the second lead screw 51 is in rotational connection with a second slider 53, the second slider 53 is in sliding connection with the sliding plate 21, the second slider 53 is in contact with the sliding rod 31, the limiting rod 34 is in contact with the second slider 53, the second lead screw 51 is fixedly connected with a rotating rod 52, and the rotating rod 52 is cylindrical; through limit structure 5 restriction bearing structure 3's motion, avoid bearing structure 3 to slide, be convenient for further fixed, promptly: in order to limit the movement of the sliding rod 31, the rotating rod 52 is rotated to drive the second lead screw 51 to rotate, the second lead screw 51 is driven to move towards the second slider 53 due to the threaded connection between the second lead screw 51 and the sliding plate 21, the second lead screw 51 is driven to abut against the sliding rod 31 due to the rotational connection between the second lead screw 51 and the second slider 53, so as to limit the movement of the sliding rod 31, the sliding rod 31 is prevented from withdrawing into the sliding plate 21, the rotating rod 52 is rotated reversely to drive the second lead screw 51 to move towards the rotating rod 52, so as to separate the second slider 53 from the sliding rod 31, the sliding rod 31 is driven to push the sliding rod 31 into the sliding plate 21, the limiting rod 34 abuts against the limiting groove 36 under the cooperation between the limiting rod 34 and the second spring 35, so as to limit the movement of the sliding rod 31, when the limitation of the limiting rod 34 on the sliding rod 31 needs to be released, the rotating rod 52 is rotated reversely, the second lead screw 51 drives the rotating rod second slider 53 to move towards the direction 52, the limit rod 34 is abutted against the second sliding block 53, so that the limit rod 34 is driven to be separated from the limit groove 36, the sliding rod 31 is pushed out of the sliding plate 21 under the action of the first spring 33, the sliding rod 31 is convenient to fix, and the sliding of the sliding rod 31 is avoided from influencing the work of the device when the sensor probe 67 works.

Specifically, the rotating structure 4 comprises a rotating barrel 42, the main body 1 is rotatably connected with the rotating barrel 42, the rotating barrel 42 is fixedly connected with a worm wheel 45, the main body 1 is rotatably connected with a worm 44, the worm wheel 45 is meshed with the worm 44, scales 43 are carved on the main body 1 and the rotating barrel 42, and the worm 44 is fixedly connected with a second knob 41; the angle of the sensor is convenient to adjust through the rotating structure 4, so that the direction of the sensor and the magnetic field is adjusted to a certain extent, namely: when sensor probe 67 angle needs to be adjusted, through rotating second knob 41, drive worm 44 and rotate, drive worm wheel 45 and rotate, owing to rotate bucket 42 and worm wheel 45 fixed connection to the drive rotates bucket 42 and rotates, according to scale 43, can confirm to rotate bucket 42 pivoted angle, thereby be convenient for adjust sensor probe 67's angle, thereby carry out certain regulation to sensor probe 67 and the direction in magnetic field.

Specifically, the telescopic structure 6 includes a third lead screw 62, the rotating barrel 42 is rotatably connected with the third lead screw 62, the third lead screw 62 is fixedly connected with a handle 61, a fixed block 63 is fixedly connected in the rotating barrel 42, the fixed block 63 is rotatably connected with the third lead screw 62, the third lead screw 62 is in threaded connection with a pushing block 64, the fixed block 63 is slidably connected with a plurality of first telescopic rods 65 and second telescopic rods 66, the plurality of first telescopic rods 65 and second telescopic rods 66 are mutually rotatably connected, the pushing block 64 is rotatably connected with the first telescopic rods 65 and the second telescopic rods 66, and the first telescopic rods 65 and the second telescopic rods 66 are rotatably connected with a sensor probe 67; can stretch into the sensor rock gap through extending structure 6 in, be convenient for to the inside further measurement of rock gap, promptly: when the sensor probe 67 needs to be inserted into a rock gap, the handle 61 is rotated to drive the third screw rod 62 to rotate, the third screw rod 62 is rotatably connected with the fixing block 63, the third screw rod 62 is in threaded connection with the pushing block 64, so that the pushing block 64 is pushed to move back to the direction away from the handle 61, the fixing block 63 is slidably connected with the plurality of first telescopic rods 65 and the plurality of second telescopic rods 66, the plurality of first telescopic rods 65 and the plurality of second telescopic rods 66 are rotatably connected with each other, the pushing block 64 is rotatably connected with the first telescopic rods 65 and the second telescopic rods 66, so that the first telescopic rods 65 and the second telescopic rods 66 move towards the direction of the third screw rod 62, an included angle between the first telescopic rods 65 and the second telescopic rods 66 is changed, the first telescopic rods 65 and the second telescopic rods 66 move back to the direction away from the main body 1, and the first telescopic rods 65 and the second telescopic rods 66 are rotatably connected with the sensor probe 67, so that the sensor probe 67 is extended into the rock for further measurement inside the rock gap.

When the invention is used, when a fluxgate sensor is used for measuring a small rock gap underwater, the device needs to be fixed, the device is horizontally placed in the rock gap, the rotating rod 52 is rotated to drive the second screw rod 51 to rotate, the limit of the sliding rod 31 is released, because the first spring 33 is abutted between the sliding rod 31 and the sliding plate 21, the sliding rod 31 is pushed towards the direction away from the sliding plate 21 under the action of the first spring 33, the sliding rod 31 is extended, the sliding rod 31 is abutted with the side wall of the rock gap, so as to preliminarily fix the device, after the device is measured, the sliding rod 31 is pushed towards the main body 1, because the sliding plate 21 is slidably connected with the limiting rod 34, the second spring 35 is abutted between the limiting rod 34 and the sliding plate 21, the limiting groove 36 is arranged on the sliding rod 31, the limiting rod 34 and the limiting groove 36 are abutted, when the sliding rod 31 moves into the sliding plate 21, the limiting rod 34 is parallel to the limiting groove 36, under the action of the second spring 35, the limiting rod 34 is pushed to abut against the limiting groove 36, so as to limit the slide rod 31, the first spring 33 cannot push the slide rod 31 out, so as to take the slide rod 31 into the slide plate 21, the slide rod 31 is slidably connected with the rubber ring 32, the rubber ring 32 is fixedly connected with the slide plate 21, so as to prevent water from entering the slide rod 31, in order to limit the movement of the slide rod 31, the rotating rod 52 is rotated to drive the second lead screw 51 to rotate, because the second lead screw 51 is in threaded connection with the slide plate 21, the second lead screw 51 is driven to move towards the second slider 53, because the second lead screw 51 is rotatably connected with the second slider 53, the second lead screw 51 is pushed to abut against the slide rod 31, so as to limit the slide rod 31 from retracting into the slide plate 21, the rotating rod 52 is rotated reversely, so as to drive the second lead screw 51 to move towards the rotating rod 52, the second slide block 53 is separated from the slide rod 31, the slide rod 31 can be pushed, the slide rod 31 is pushed into the slide plate 21, the limit rod 34 is abutted with the limit groove 36 under the cooperation of the limit rod 34 and the second spring 35, so as to limit the motion of the slide rod 31, when the limit of the limit rod 34 on the slide rod 31 needs to be relieved, the rotating rod 52 is continuously rotated in the reverse direction, the second lead screw 51 drives the second slide block 53 to move towards the rotating rod 52, the limit rod 34 is abutted with the second slide block 53, so as to drive the limit rod 34 to be separated from the limit groove 36, the slide rod 31 is pushed out of the slide plate 21 under the action of the first spring 33, so as to fix the slide rod 31, the slide rod 31 is prevented from sliding when the sensor probe 67 works, the device is influenced to work, the first knob 23 is rotated to drive the first lead screw 22 to rotate, because the first slide block 24 is in threaded connection with the first lead screw 22, the slide groove 26 is arranged on the slide plate 21, the first slider 24 is in sliding fit with the sliding plate 21 along the sliding groove 26, so as to drive the first slider 24 to move towards the first knob 23, thereby pushing the sliding plate 21 to move away from the main body 1, thereby further fixing the sliding rod 31 and two sides of the rock gap firmly, because the slider is rotatably connected with the first pulley 25, the first pulley 25 is in contact with the sliding groove 26, thereby making the first slider 24 slide more easily, and reversely rotating the first knob 23, thereby making the first lead screw 22 drive the first slider 24 to move away from the first knob 23, thereby bringing the sliding plate 21 into the main body 1, thereby more conveniently detaching the device from the rock gap, when the angle of the sensor probe 67 needs to be adjusted, by rotating the second knob 41, the worm 44 is driven to rotate, the worm wheel 45 is driven to rotate, because the rotating barrel 42 is fixedly connected with the worm wheel 45, thereby driving the rotating barrel 42 to rotate, according to the scale 43, the rotating angle of the rotating barrel 42 can be determined, so that the angle of the sensor probe 67 can be conveniently adjusted, and the direction of the sensor probe 67 and the magnetic field can be adjusted to a certain extent, when the sensor probe 67 needs to be inserted into a rock gap, the handle 61 is rotated to drive the third screw rod 62 to rotate, the third screw rod 62 is rotatably connected with the fixed block 63, the third screw rod 62 is in threaded connection with the pushing block 64, so that the pushing block 64 is pushed to move away from the handle 61, the fixed block 63 is in sliding connection with the first telescopic rods 65 and the second telescopic rods 66, the first telescopic rods 65 and the second telescopic rods 66 are rotatably connected with each other, the pushing block 64 is rotatably connected with the first telescopic rods 65 and the second telescopic rods 66, so that the first telescopic rods 65 and the second telescopic rods 66 move towards the third screw rod 62, and the included angle between the first telescopic rods 65 and the second telescopic rods 66 is changed, make first telescopic link 65 and second telescopic link 66 move to the direction of being dorsad from main part 1, first telescopic link 65 and second telescopic link 66 rotate and are connected with sensor probe 67 to stretch into the rock with sensor probe 67 inside, be convenient for to the inside further measurement of rock gap.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.