A device for measuring geological cracks in hydraulic rings

Abstract

The present invention relates to the field of coalfield geology technology, and discloses a hydraulic ring geological fracture measuring device, including a plurality of measuring modules and an air filling mechanism, wherein the plurality of measuring modules are equidistantly distributed along the geological fracture, and the plurality of measuring modules are connected end to end; the measuring module includes a middle plate, a right side plate and a left side plate, the right side plate and the left side plate are respectively located on both sides of the middle plate, and the measuring module also includes two bellows, one end of the two bellows is respectively arranged at the two ends of the middle plate, and the other end of the two bellows is respectively arranged on the right side plate and the left side plate. The hydraulic ring geological fracture measuring device adopts a plurality of bendable measuring modules to fit the winding direction of the geological fracture, the number of measuring modules can be freely selected, and the measuring function of each measuring module is driven pneumatically, so that a plurality of width data along the direction of the geological fracture can be measured at one time.

Description

Technical Field

[0001] The invention relates to the technical field of coalfield geology, in particular to a hydraulic ring geological fracture measuring device. Background Art

[0002] Hydrogeology is a general term for hydrogeology, engineering geology, and environmental geology. Engineering geology includes coalfield geology. During the mining and research of coalfields, it is necessary to survey the strata of coalfields. Coalfield strata survey includes the measurement of geological fractures.

[0003] The cracks and differential displacement of the strata to form cracks of a certain length and width are called geological cracks. The causes of geological cracks are complex and varied, mainly including the following: crustal movement, ground subsidence, landslides, expansion and collapse of special soils, and human activities.

[0004] In the prior art, such as a hydraulic ring geological fracture measuring device with publication number CN219083939U, when measuring the width of the geological fracture, a bracket is first fixed on one side of the geological fracture, and then a measuring plate connected with a tape measure or straight teeth is pulled to the other side of the geological fracture, and then the scale is read to measure the width of the geological fracture.

[0005] However, geological fractures are winding along their direction, and the width of each point varies. Therefore, when using existing measuring devices for measurement, it is necessary to manually carry the measuring device along the direction of the geological fractures to conduct multiple measurements, which is relatively labor-intensive.

[0006] Therefore, in order to solve the above technical problems existing in the prior art, a hydraulic ring geological fracture measurement device is proposed. Summary of the invention

[0007] The present invention provides a hydraulic ring geological fracture measuring device, which adopts a plurality of flexible measuring modules to fit the winding direction of the geological fracture. The number of the measuring modules can be freely selected, and the measuring function of each measuring module is driven pneumatically, so that the beneficial effect of measuring multiple width data along the direction of the geological fracture can be obtained at one time, which solves the problem mentioned in the above background technology that the geological fracture is winding along its direction, and the width of each point varies. Therefore, when using the existing measuring device for measurement, it is necessary to manually carry the measuring device along the direction of the geological fracture for multiple measurements, which is relatively labor-intensive.

[0008] The present invention provides the following technical solutions: a hydraulic ring geological fracture measuring device, used for measuring geological fractures on a stratum, the geological fractures include a bending section, the hydraulic ring geological fracture measuring device includes a plurality of measuring modules and an inflation mechanism, the plurality of measuring modules are equidistantly distributed along the geological fracture, and the plurality of measuring modules are connected end to end;

[0009] The measuring module comprises a middle plate, a right plate and a left plate, wherein the right plate and the left plate are respectively located on both sides of the middle plate, and the measuring module further comprises two bellows, wherein one end of the two bellows is respectively arranged at two ends of the middle plate, and the other end of the two bellows is respectively arranged at the right plate and the left plate;

[0010] Two measuring mechanisms are symmetrically arranged on the middle plate, and the measuring mechanisms include an air cavity and a slide groove opened in the middle plate, the air cavity and the slide groove are connected, a piston rod is slidably arranged in the slide groove, and a measuring plate is arranged on the piston rod;

[0011] Compressed gas is filled into the plurality of air cavities through the inflation mechanism, so that the plurality of measuring plates are displaced toward the inner wall of the geological fracture, and the width of each location of the geological fracture is measured according to the displacement of the plurality of measuring plates.

[0012] As an optional solution of the hydraulic ring geological fracture measuring device of the present invention, wherein: the middle plate is provided with a first through slot, the right plate is provided with a second through slot, and the left plate is provided with a third through slot, and the first through slot, the second through slot and the third through slot are respectively connected to the inner cavity of the adjacent corrugated pipe;

[0013] The air cavity is communicated with the first through groove, a scale groove is provided on the piston rod, and the piston rod is elastically connected to the inner wall of the slide groove through a first spring.

[0014] As an optional solution of the hydraulic ring geological fracture measuring device described in the present invention, the inflation mechanism includes a cart and a connecting pipe, the cart is provided with wheels and an air compressor, one end of the connecting pipe is connected to the air outlet of the air compressor, and the other end of the connecting pipe is connected to one of the third through grooves.

[0015] As an optional solution of the hydraulic ring geological fracture measuring device of the present invention, wherein: the measuring module further includes a plurality of first assembly components, and the first assembly components are used for connecting two adjacent measuring modules;

[0016] The first assembly component includes a first sealing groove opened on the left side plate, the first sealing groove is connected to the third through groove, two first sealing blocks are slidably arranged in the first sealing groove, the two first sealing blocks are elastically connected to the inner walls on both sides of the first sealing groove through two second springs respectively, and the elastic force provided by the two second springs enables the two first sealing blocks to be spliced ​​together, thereby sealing the first sealing groove.

[0017] As an optional solution of the hydraulic ring geological fracture measuring device described in the present invention, the first assembly component also includes two docking blocks symmetrically arranged on the right side plate, and docking grooves are provided on the two first sealing blocks, and the two docking grooves are respectively adapted to the two docking blocks.

[0018] As an optional solution of the hydraulic ring geological fracture measurement device of the present invention, wherein: the measurement module further includes a second assembly component, the second assembly component includes a hollow tube arranged on the right side plate, and the hollow tube is connected to the second through groove;

[0019] The hollow tube is slidably connected in the third through groove, a second sealing groove is opened on the hollow tube, two second sealing blocks are slidably arranged in the second sealing groove, the two second sealing blocks are elastically connected to the inner walls on both sides of the second sealing groove through two third springs respectively, and the elastic force provided by the two third springs makes the two second sealing blocks fit together, thereby sealing the second sealing groove.

[0020] As an optional solution of the hydraulic ring geological fracture measuring device described in the present invention, wherein: guide blocks are arranged on the two second sealing blocks, two guide grooves are symmetrically opened in the left side plate, and the two guide blocks are respectively slidably connected in the two guide grooves.

[0021] As an optional solution of the hydraulic ring geological fracture measuring device described in the present invention, the measuring module also includes an opening and closing component, and the geological fracture also includes a fracture cross section. When a middle measuring module among the plurality of measuring modules is located on the fracture cross section, the air cavity on the measuring module is sealed by the opening and closing component.

[0022] As an optional solution of the hydraulic ring geological fracture measuring device described in the present invention, the opening and closing component includes a third sealing groove opened on the middle plate, the third sealing groove is connected to the first through groove, a connecting frame is provided on the middle plate, a valve member is slidably provided on the connecting frame, and the valve member is fitted with the third sealing groove.

[0023] As an optional solution of the hydraulic ring geological fracture measuring device described in the present invention, the valve member is elastically connected to the connecting frame through a fourth spring, and an insertion rod is provided on the valve member. The insertion rod is inserted into the cross section of the fracture to drive the valve member to move and engage in the third sealing groove, thereby closing the connecting channel between the air cavity and the first through groove.

[0024] The present invention has the following beneficial effects:

[0025] 1. The hydraulic ring geological fracture measurement device takes into account the differences in width of the winding geological fractures at different positions. Therefore, the measurement mechanism is installed in a measurement module composed of a left plate, a bellows, a middle plate, a bellows and a right plate. The measurement module can bend to fit the winding changes of the geological fracture. The entire measurement device is assembled by connecting several measurement modules end to end, and can fit the entire geological fracture along the direction of the geological fracture. Then, when measuring the width, it is driven by a pneumatic device so that the two measurement plates in each set of measurement mechanisms are ejected to the inner walls on both sides of the geological fracture, so as to measure the width data of different positions along the direction of the geological fracture at one time.

[0026] 2. The hydraulic ring geological fracture measurement device uses modular assembly for several measurement modules, which can be freely added or removed to meet the length of the geological fracture. In the modular installation mode, when two measurement modules are connected, the originally closed head and tail will automatically open to complete the connection of the airway.

[0027] 3. The hydraulic ring geological fracture measurement device also takes into account that there may be cross sections in the geological fractures. The insertion rod of the part of a string of measurement modules that passes through the cross section of the fracture can be inserted into the ground of the cross section of the fracture, so that this part of the measurement module can also play the role of reinforcing and connecting the remaining measurement modules on the left and right. At this time, the part of the measurement module used for connection will automatically disconnect its measurement mechanism from the overall airway due to the insertion of the insertion rod into the ground, and this part of the measurement module will not perform measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a first cross-sectional structural schematic diagram of the measurement module in the present invention.

[0030] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0031] Figure 4 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0032] Figure 5 It is a second cross-sectional structural schematic diagram of the measurement module in the present invention.

[0033] Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at point C in the middle.

[0034] Figure 7 It is a third cross-sectional structural schematic diagram of the measurement module in the present invention.

[0035] Figure 8 It is a schematic diagram of the structure of the geological fracture in the present invention.

[0036] Fig. 9 It is a schematic diagram of the explosion structure of the measurement module in the present invention.

[0037] In the figure: 100, stratum; 110, geological fracture; 120, bending section; 130, cross section of fracture; 200, measuring module; 210, middle plate; 220, measuring mechanism; 221, air cavity; 222, slide groove; 223, piston rod; 224, measuring plate; 225, scale groove; 226, first spring; 230, right side plate; 240, left side plate; 250, bellows; 261, first through groove; 262, second through groove; 263, third through groove; 270, first assembly component; 271, first sealing groove; 272, The first sealing block; 273, the second spring; 274, the docking block; 275, the docking groove; 280, the second assembly component; 281, the hollow tube; 282, the second sealing groove; 283, the second sealing block; 284, the third spring; 285, the guide block; 286, the guide groove; 290, the opening and closing component; 291, the third sealing groove; 292, the connecting frame; 293, the valve member; 294, the fourth spring; 295, the plug rod; 300, the inflation mechanism; 310, the cart; 320, the wheel; 330, the air compressor; 340, the connecting pipe. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0039] See also Figure 1-Figure 9 A hydraulic ring geological fracture measuring device is used to measure a geological fracture 110 on a stratum 100, wherein the geological fracture 110 includes a bending section 120, and the hydraulic ring geological fracture measuring device includes a plurality of measuring modules 200 and an air filling mechanism 300, wherein the plurality of measuring modules 200 are equidistantly distributed along the geological fracture 110, and the plurality of measuring modules 200 are connected end to end;

[0040] The measuring module 200 includes a middle plate 210, a right plate 230 and a left plate 240, wherein the right plate 230 and the left plate 240 are respectively located at two sides of the middle plate 210, and the measuring module 200 also includes two bellows 250, wherein one end of the two bellows 250 is respectively disposed at two ends of the middle plate 210, and the other end of the two bellows 250 is respectively disposed on the right plate 230 and the left plate 240;

[0041] Two measuring mechanisms 220 are symmetrically arranged on the middle plate 210. The measuring mechanism 220 includes an air cavity 221 and a slide groove 222 opened in the middle plate 210. The air cavity 221 and the slide groove 222 are connected. A piston rod 223 is slidably arranged in the slide groove 222. A measuring plate 224 is arranged on the piston rod 223.

[0042] Compressed gas is charged into the plurality of air cavities 221 through the gas charging mechanism 300, so that the plurality of measuring plates 224 are all displaced toward the inner wall of the geological fracture 110, and the width of each location of the geological fracture 110 is measured according to the displacement of the plurality of measuring plates 224;

[0043] A first through slot 261 is formed on the middle plate 210, a second through slot 262 is formed on the right plate 230, and a third through slot 263 is formed on the left plate 240. The first through slot 261, the second through slot 262 and the third through slot 263 are respectively connected to the inner cavity of the adjacent corrugated tube 250;

[0044] The air cavity 221 is connected to the first through groove 261, and a scale groove 225 is formed on the piston rod 223. The piston rod 223 is elastically connected to the inner wall of the slide groove 222 through the first spring 226;

[0045] The inflation mechanism 300 includes a cart 310 and a connecting pipe 340 . The cart 310 is provided with wheels 320 and an air compressor 330 . One end of the connecting pipe 340 is connected to the air outlet of the air compressor 330 , and the other end of the connecting pipe 340 is connected to one of the third through grooves 263 .

[0046] In this embodiment: the geological fracture 110 is a geological structure on the stratum 100 under the hydrogeological environment. The shape of the geological fracture 110 is simplified in the figure, and only a bending section 120 is provided. In fact, the geological fracture 110 is winding along its direction from left to right.

[0047] Along the geological fracture 110 from left to right, the front and rear widths of different positions vary, and the traditional measuring device can only measure one position at a time. To improve this, specifically, the cart 310 moves to the left starting point of the geological fracture through the wheels 320, and then a string of measuring modules 200 is inserted into the geological fracture 110 along the direction of the geological fracture 110. According to the specific length of the geological fracture 110, the right tail of the measuring module 200 can be increased or decreased arbitrarily.

[0048] The measuring module 200 is composed of a hard structure middle plate 210 in the middle, and two hard structure left plates 240 and right plates 230 on the left and right sides as the skeleton. There are two bellows 250 between the left plate 240, the middle plate 210 and the right plate 230. Therefore, the measuring module 200 as a whole can be Figure 1 As shown in FIG. 1 , two bellows 250 are manually bent to match the winding change of the geological fracture 110 .

[0049] After a string of measuring modules 200 is inserted into the geological fracture 110, the compressed air is delivered to the third through slot 263 on the far left through the connecting pipe 340 by the air compressor 330, and then transmitted to all the air cavities 221 through the bellows 250, the first through slot 261 and the second through slot 262. The compressed gas is continuously filled into the air cavity 221, and the compressed gas pushes the piston rod 223 and the measuring plate 224 on the front side forward, and pushes the piston rod 223 and the measuring plate 224 on the rear side backward, until the two measuring plates 224 respectively contact the front and rear inner walls of the geological fracture 110 at the location and cannot move further. At this time, by reading the readings of the scale grooves 225 on the two piston rods 223, the front and rear widths of the geological fracture 110 at that location can be measured.

[0050] After the measurement is completed, the plurality of piston rods 223 and the measuring plate 224 can be reset by extracting the compressed gas through the air compressor 330 or unplugging the connecting pipe 340 .

[0051] Compared with a tape measure or a rope, the measuring plate 224 can reinforce the entirety of a string of measuring modules 200 when it is pressed against the front and rear inner walls of the geological fracture 110, making the measurement more stable. The bellows 250 can also expand to a certain extent after being inflated, which also plays a role in overall reinforcement. Embodiment 2

[0052] This embodiment is an improvement on the first embodiment. For details, please refer to Figure 1-Figure 9 , the measuring module 200 further includes a plurality of first assembly components 270, and the first assembly components 270 are used for connecting two adjacent measuring modules 200;

[0053] The first assembly component 270 includes a first sealing groove 271 formed on the left side plate 240, the first sealing groove 271 is communicated with the third through groove 263, two first sealing blocks 272 are slidably arranged in the first sealing groove 271, the two first sealing blocks 272 are elastically connected to the inner walls of both sides of the first sealing groove 271 through two second springs 273 respectively, and the elastic force provided by the two second springs 273 makes the two first sealing blocks 272 fit together, thereby sealing the first sealing groove 271;

[0054] The first assembly component 270 further includes two docking blocks 274 symmetrically arranged on the right side plate 230 , and docking grooves 275 are provided on the two first sealing blocks 272 , and the two docking grooves 275 are respectively adapted to the two docking blocks 274 ;

[0055] The measurement module 200 further includes a second assembly component 280, and the second assembly component 280 includes a hollow tube 281 disposed on the right side plate 230, and the hollow tube 281 is communicated with the second through groove 262;

[0056] The hollow tube 281 is slidably connected in the third through groove 263. A second sealing groove 282 is formed on the hollow tube 281. Two second sealing blocks 283 are slidably arranged in the second sealing groove 282. The two second sealing blocks 283 are elastically connected to the inner walls of both sides of the second sealing groove 282 through two third springs 284 respectively. The elastic force provided by the two third springs 284 enables the two second sealing blocks 283 to be assembled together, thereby sealing the second sealing groove 282.

[0057] A guide block 285 is disposed on each of the two second sealing blocks 283 . Two guide grooves 286 are symmetrically provided in the left side plate 240 , and the two guide blocks 285 are slidably connected to the two guide grooves 286 , respectively.

[0058] In this embodiment: among the plurality of measuring modules 200, the third through slot 263 of the leftmost measuring module 200 is blocked by two first sealing blocks 272 assembled together, and is in a closed state. The second through slot 262 and the second sealing slot 282 of the rightmost measuring module 200 are blocked by two second sealing blocks 283 assembled together, and are in a closed state. That is, the entire string of measuring modules 200 is in a sealed state, and air can only enter and exit through the connecting pipe 340.

[0059] During assembly, the two docking blocks 274 on the right side plate 230 on the left side are inserted into the corresponding two docking grooves 275 on the left side plate 240 on the right side. Since the docking blocks 274 and the docking grooves 275 are both trapezoidal, the two first sealing blocks 272 will gradually be pushed away from the front and rear sides during the insertion process of the two docking blocks 274.

[0060] At the same time, the hollow tube 281 on the right side plate 230 on the left side is inserted into the second through groove 262 on the left side plate 240 on the right side. During the insertion of the hollow tube 281, two guide blocks 285 that are movable through the front and rear sides of the hollow tube 281 are inserted into the two guide grooves 286 on the left side plate 240 on the right side, and the two guide grooves 286 are gradually expanded from left to right.

[0061] Through the guidance of the two guide grooves 286, the guide block 285 on the front side moves forward, and the guide block 285 on the rear side moves backward, so that the second sealing groove 282 is opened, and the second through groove 262 and the third through groove 263 are connected through the hollow tube 281. The assembly of the two measuring modules 200 is completed. The adjacent measuring modules 200 are relatively fixed by the pressure of several springs and the fitting force between the plug slots, and can be pulled out by force when disassembling. Embodiment 3

[0062] This embodiment is an improvement on the first embodiment. For details, please refer to Figure 1-Figure 9 The measuring module 200 further includes an opening and closing assembly 290, and the geological fracture 110 further includes a fracture cross section 130. When a measuring module 200 located in the middle of the plurality of measuring modules 200 is located on the fracture cross section 130, the air cavity 221 on the measuring module 200 is sealed by the opening and closing assembly 290;

[0063] The opening and closing assembly 290 includes a third sealing groove 291 formed on the middle plate 210, the third sealing groove 291 is connected to the first through groove 261, a connecting frame 292 is provided on the middle plate 210, a valve member 293 is slidably provided on the connecting frame 292, and the valve member 293 is fitted with the third sealing groove 291;

[0064] The valve member 293 is elastically connected to the connecting frame 292 through the fourth spring 294. An insertion rod 295 is provided on the valve member 293. The insertion rod 295 is inserted into the cross section 130 in the crack to drive the valve member 293 to move and engage in the third sealing groove 291, thereby closing the connecting channel between the air cavity 221 and the first through groove 261.

[0065] In this embodiment: part of the geological fracture 110 is also as shown in the figure, there is a fracture section 130 in the middle of the geological fracture 110, the fracture section 130 is connected to the ground, the geological fracture 110 passes along the lower side of the fracture section 130, and the geological fracture 110 on the left and right sides is exposed on the surface.

[0066] For this type of geological structure, at least one of the measurement modules 200 connected in a series needs to pass through the upper surface of the fracture cross section 130 and be fixed to a certain extent. The bellows 250 can also be bent in the vertical direction to fit the ground. Specifically, the insertion rod 295 is inserted into the ground at the fracture cross section 130 for fixing. The measurement module 200 does not perform measurement, but only serves to connect the remaining measurement modules 200 on the left and right sides.

[0067] Correspondingly, during the process of inserting the rod 295 into the ground, the valve member 293 is pushed upward and the valve member 293 is embedded in the third sealing groove 291 to block the third sealing groove 291. At this time, the compressed gas in the first through groove 261 will not enter the air cavity 221 and will not push out the two measuring plates 224 on the measuring module 200.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic ring geological fracture measuring device, used for measuring geological fractures (110) on a stratum (100), characterized by: The geological fracture (110) comprises a bending section (120), and the hydraulic ring geological fracture measuring device comprises a plurality of measuring modules (200) and an air charging mechanism (300), wherein the plurality of measuring modules (200) are distributed equidistantly along the geological fracture (110), and the plurality of measuring modules (200) are connected end to end; The measuring module (200) comprises a middle plate (210), a right side plate (230) and a left side plate (240), wherein the right side plate (230) and the left side plate (240) are respectively located on two sides of the middle plate (210), and the measuring module (200) further comprises two bellows (250), wherein one end of the two bellows (250) is respectively arranged at two ends of the middle plate (210), and the other end of the two bellows (250) is respectively arranged on the right side plate (230) and the left side plate (240); Two measuring mechanisms (220) are symmetrically arranged on the middle plate (210), the measuring mechanism (220) comprising an air cavity (221) and a slide groove (222) opened in the middle plate (210), the air cavity (221) and the slide groove (222) being connected, a piston rod (223) being slidably arranged in the slide groove (222), and a measuring plate (224) being arranged on the piston rod (223); Compressed gas is charged into a plurality of the gas cavities (221) through the gas charging mechanism (300), so that a plurality of the measuring plates (224) are displaced toward the inner wall of the geological fracture (110), and the width of each location of the geological fracture (110) is measured based on the displacement of the plurality of the measuring plates (224); The middle plate (210) is provided with a first through groove (261), the right plate (230) is provided with a second through groove (262), and the left plate (240) is provided with a third through groove (263), the first through groove (261), the second through groove (262) and the third through groove (263) being respectively connected to the inner cavity of the adjacent corrugated pipe (250); The air cavity (221) is in communication with the first through groove (261); a scale groove (225) is provided on the piston rod (223); and the piston rod (223) is elastically connected to the inner wall of the slide groove (222) via a first spring (226); The measuring module (200) further comprises a plurality of first assembly components (270), wherein the first assembly components (270) are used for connecting two adjacent measuring modules (200); The first assembly component (270) comprises a first sealing groove (271) formed on the left side plate (240), the first sealing groove (271) being in communication with the third through groove (263), two first sealing blocks (272) being slidably arranged in the first sealing groove (271), the two first sealing blocks (272) being elastically connected to inner walls on both sides of the first sealing groove (271) respectively via two second springs (273), and the two first sealing blocks (272) being assembled together by the elastic force provided by the two second springs (273), thereby sealing the first sealing groove (271); The first assembly component (270) further comprises two docking blocks (274) symmetrically arranged on the right side plate (230), and the two first sealing blocks (272) are each provided with a docking groove (275), and the two docking grooves (275) are respectively adapted to the two docking blocks (274).

2. A hydraulic ring geological fracture measurement device according to claim 1, characterized in that: The inflation mechanism (300) comprises a cart (310) and a connecting pipe (340), wherein the cart (310) is provided with wheels (320) and an air compressor (330), wherein one end of the connecting pipe (340) is connected to an air outlet of the air compressor (330), and the other end of the connecting pipe (340) is in communication with one of the third through grooves (263).

3. A hydraulic ring geological fracture measurement device according to claim 1, characterized in that: The measuring module (200) further comprises a second assembly component (280), wherein the second assembly component (280) comprises a hollow tube (281) arranged on the right side plate (230), and the hollow tube (281) is in communication with the second through groove (262); The hollow tube (281) is slidably connected in the third through groove (263); a second sealing groove (282) is provided on the hollow tube (281); two second sealing blocks (283) are slidably arranged in the second sealing groove (282); the two second sealing blocks (283) are elastically connected to the inner walls on both sides of the second sealing groove (282) respectively through two third springs (284); the elastic force provided by the two third springs (284) enables the two second sealing blocks (283) to be assembled together, thereby sealing the second sealing groove (282).

4. A hydraulic ring geological fracture measurement device according to claim 3, characterized in that: The two second sealing blocks (283) are each provided with a guide block (285), two guide grooves (286) are symmetrically provided in the left side plate (240), and the two guide blocks (285) are respectively slidably connected in the two guide grooves (286).

5. A hydraulic ring geological fracture measurement device according to claim 1, characterized in that: The measuring module (200) further comprises an opening and closing assembly (290), and the geological fracture (110) further comprises a fracture cross section (130). When a middle measuring module (200) among the plurality of measuring modules (200) is located on the fracture cross section (130), the air cavity (221) on the measuring module (200) is sealed by the opening and closing assembly (290).

6. A hydraulic ring geological fracture measurement device according to claim 5, characterized in that: The opening and closing assembly (290) comprises a third sealing groove (291) formed on the middle plate (210), the third sealing groove (291) being in communication with the first through groove (261), a connecting frame (292) being provided on the middle plate (210), a valve member (293) being slidably provided on the connecting frame (292), and the valve member (293) being fitted in the third sealing groove (291).

7. A hydraulic ring geological fracture measurement device according to claim 6, characterized in that: The valve member (293) is elastically connected to the connecting frame (292) via a fourth spring (294). An insertion rod (295) is provided on the valve member (293). The insertion rod (295) is inserted into the cross section (130) in the crack to drive the valve member (293) to move and fit into the third sealing groove (291), thereby closing the connecting channel between the air cavity (221) and the first through groove (261).

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