CN114923456A - Ground subsidence detection device for coal mine goaf - Google Patents
Ground subsidence detection device for coal mine goaf Download PDFInfo
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- CN114923456A CN114923456A CN202210528448.5A CN202210528448A CN114923456A CN 114923456 A CN114923456 A CN 114923456A CN 202210528448 A CN202210528448 A CN 202210528448A CN 114923456 A CN114923456 A CN 114923456A
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- coal mine
- cover
- electric spark
- ground subsidence
- mine goaf
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 239000003245 coal Substances 0.000 title claims abstract description 34
- 238000010892 electric spark Methods 0.000 claims abstract description 64
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000003116 impacting effect Effects 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 20
- 238000000926 separation method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/157—Generating seismic energy using spark discharges; using exploding wires
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/04—Details
Abstract
The invention provides a ground subsidence detection device for a coal mine goaf, which comprises a fixed assembly, wherein the solid assembly comprises a shield and a support rod, one side of the shield is provided with a detection system, the inner side of the shield is provided with a sound insulation assembly, the sound insulation assembly comprises an inner cover and a partition cover, the bottom of the sound insulation assembly is provided with a sealing mechanism, the inner side of the inner cover is provided with an electric spark source, the inner side of the inner cover is provided with a recoil assembly, the ground subsidence detection device for the coal mine goaf can greatly reduce the transmission of noise, ensure the hearing safety of workers, improve the working comfort of the workers, counteract the ground recoil force by utilizing the downward inertia force of the electric spark source, the support plate, a counterweight and the like, avoid the electric spark source from impacting the inner cover, prevent the electric spark from upwards pushing the inner cover and not pushing the inner cover in the horizontal direction, the safety of equipment such as rubber sleeve and slide is ensured, and the device is suitable for detecting the ground subsidence of the coal mine goaf.
Description
Technical Field
The invention relates to the technical field of ground subsidence detection equipment, in particular to a ground subsidence detection device for a coal mine goaf.
Background
In order to ensure the safety of the coal mine goaf, the underground hole of the coal mine goaf is required to be detected, so as to detect the speed and the subsidence amount of the ground subsidence in advance and effectively ensure the safety of personnel and property of the coal mine goaf, the existing coal mine goaf ground subsidence detection equipment basically has the advantages of high detection speed, high detection accuracy, large detection depth, good working stability, long service life and the like, and can meet the use requirement of detecting the hole below the ground of the coal mine goaf, however, for the existing coal mine goaf ground subsidence detection equipment, on one hand, a vibration source is required to send out vibration waves when the hole below is detected, and further, when the coal mine goaf ground subsidence detection equipment works, larger noise is required to be produced, which is not beneficial to ensuring the hearing safety of workers and reducing the working comfort, on the other hand, when using the subassembly that gives sound insulation to give sound insulation during operation, ground upwards bounces the subassembly that gives sound insulation easily to the reverse impact of vibrations source, and then is unfavorable for ensuring the syllable-dividing effect of subassembly that gives sound insulation, on the one hand again, appears easily when using the recoil subassembly to reduce the recoil on ground because of the unevenness on ground, leads to the vibration source to produce the component of horizontal direction, and then causes the subassembly that gives sound insulation to appear horizontal migration easily, is unfavorable for ensuring the safety of subassembly that gives sound insulation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the ground subsidence detection device for the coal mine goaf to solve the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a be used for coal mine goaf ground subsidence detection device, includes fixed subassembly, the solid subassembly includes guard shield and branch, lift wheel subassembly is installed in the outside of guard shield, lift wheel subassembly includes gyro wheel and lead screw, detection system is installed to one side of guard shield, detection system includes detection instrument and wave detector, syllable-dividing subassembly is installed to the inboard of guard shield, syllable-dividing subassembly includes the inner cover and separates the cover, sealing mechanism is installed to the bottom of syllable-dividing subassembly, sealing mechanism includes slide and rubber sleeve, the electric spark focus is installed to the inboard of inner cover, the recoil subassembly includes cutting ferrule and piston, the buffering subassembly is installed to the bottom of piston, the buffering subassembly includes guide arm and universal ball.
Furthermore, one side welding of guard shield has the couple, the scraper blade is installed at the top of detection instrument, the detection instrument passes through the scraper blade and hangs on the couple.
Furthermore, a bayonet is formed in the detector, the detector is clamped on the inner side of the bayonet, a junction box is installed on the inner side of the detector, and a wiring is installed on the inner side of the junction box.
Furthermore, an internal thread is formed in the inner side of the supporting rod, an external thread is formed in the screw rod, the internal thread is matched with the external thread, the bottom end of the screw rod is installed at the top of the roller through a bearing, the top end of the screw rod penetrates through the supporting rod and extends to the top of the supporting rod, and a crank is welded at the top end of the screw rod.
Furthermore, the separating cover is sleeved on the outer side of the inner cover, the shield is sleeved on the outer side of the separating cover, the bottom of the shield extends inwards to the bottom of the inner cover, and the inner cover and the bottom of the separating cover are both welded on the inner side of the shield.
Furthermore, the inner sides of the inner cover and the protective cover are provided with sliding grooves, the sliding plate is clamped on the inner side of the sliding grooves, the top of the sliding plate is connected with the top of the sliding grooves through a first spring, the bottom of the sliding plate extends to the bottom of the protective cover, the top of the rubber sleeve is bonded to the bottom of the protective cover, the sliding plate is clamped on the two sides of the rubber sleeve, and water is filled in the inner side of the rubber sleeve.
Furthermore, support plates are welded on two sides of the electric spark seismic source, a balance weight is welded at the bottom of each support plate, the inner wall of the inner cover is welded at the top of the clamping sleeve, the outer side of the piston is clamped on the inner wall of the clamping sleeve, and touch switches are mounted on two sides of the bottom of the electric spark seismic source.
Furthermore, an electromagnet is installed on the top of the clamping sleeve through a bolt, the electromagnet is connected with the top of the piston through a second spring, the detecting instrument is connected with the touch switch and the electromagnet through electric wires, and the touch switch is connected with an electric spark seismic source through electric wires.
Furthermore, the outer side of the guide rod is clamped on the inner wall of the clamping sleeve, universal balls are welded at the bottom of the piston and the top of the support plate, ball sleeves are arranged at the top end and the bottom end of the guide rod, and the ball sleeves are sleeved on the outer side of the universal balls.
Furthermore, air holes are formed in one side of the clamping sleeve and are uniformly distributed on the clamping sleeve, a support is welded at the bottom of the clamping sleeve, balls are sleeved on the support and clamped on the outer side of the guide rod, and the balls are uniformly distributed at the bottom of the clamping sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. this be used for coal mine goaf ground subsidence detection device when using, at the during operation, rotate the lead screw through the crank, make the lead screw drive gyro wheel rebound, and then make the spout card of the bottom of guard shield subaerial, and the extrusion at the guard shield to, make the slide move to in the spout, and utilize the rubber sleeve to seal the bottom of guard shield, the bottom of guard shield is through separating cover and double-deck isolation of inner cover formation, the bottom of guard shield is sealed ground through the rubber sleeve, and utilize spreading of the water noise abatement in the rubber sleeve, at electric spark focus during operation, very big noise abatement spread, ensure peripheral staff's hearing safety effectively, improve the travelling comfort of personnel's work.
2. When the device is used for detecting, firstly, the electromagnet is turned on, so that the electromagnet enables the spring II to contract through suction force, the piston is upwards attracted to the top of the clamping sleeve, the piston drives the support plate upwards through the guide rod and moves the electric spark seismic source upwards, when the detection is carried out, the electromagnet is turned off, the electric spark seismic source is enabled to move downwards by utilizing passing elastic force and the gravity of the electric spark seismic source and other components, when the electric spark seismic source is about to contact the ground, the contact pressure switch turns on the electric spark seismic source, so that the electric spark seismic source is enabled to work to generate impact waves to the ground, the ground impacts the electric spark seismic source in the reverse direction, the downward inertia forces of the support plate, the balance weight and the like on the electric spark seismic source are utilized to offset, the electric spark seismic source is effectively prevented from bouncing upwards, and the inner cover of the electric spark seismic source can be prevented from impacting, the safety of the inner cover is guaranteed, the electric spark seismic source is prevented from pushing the inner cover upwards, the sealing effect of the rubber sleeve on the ground is guaranteed, and the sound insulation work is guaranteed.
3. When the device is used, when the electromagnet is closed, the spring pushes the piston downwards, air flows into the clamping sleeve through the air holes, the number of the air holes in the bottom plate of the piston is increased continuously along with the downward movement of the piston, the flowing speed of the air to the inside of the clamping sleeve is increased continuously, the situation that the protective cover is pushed upwards due to the elastic force of the spring at the moment when the electromagnet is closed is avoided, the protective cover is sealed and fixed on the ground is guaranteed, the guide rod pushes the support rod to move downwards under the downward pushing of the piston, after the guide rod leaves the clamping sleeve, after the electric spark seismic source works and is subjected to the reaction force of the ground, the support rod can deflect at any angle at the bottom of the guide rod through the universal ball, the top end of the guide rod deflects through the universal ball, and further when the electric spark seismic source is subjected to horizontal component force, the electric spark seismic source can move horizontally through the universal ball on the guide rod without pushing the inner cover in the horizontal direction, further, the sliding plate, the rubber sleeve and the ground are prevented from being abraded, and the safety of the rubber sleeve, the sliding plate and other equipment is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a device for detecting ground subsidence in a coal mine gob according to the present invention;
FIG. 2 is a cross-sectional view of a device for detecting ground subsidence in a mined-out area of a coal mine according to the present invention;
FIG. 3 is a side cross-sectional view of a ferrule for a coal mine goaf ground subsidence detection device of the present invention;
FIG. 4 is a bottom view of a ferrule for a coal mine goaf ground subsidence detection device in accordance with the present invention;
in the figure: 1. a shield; 2. a strut; 3. a detector; 4. hooking; 5. a detector; 6. a junction box; 7. a roller; 8. a screw rod; 9. a crank; 10. an inner cover; 11. a separation cover; 12. a chute; 13. a slide plate; 14. a first spring; 15. a rubber sleeve; 16. an electric spark source; 17. a support plate; 18. balancing weight; 19. a card sleeve; 20. a piston; 21. an electromagnet; 22. a guide bar; 23. a universal ball; 24. a ball sleeve; 25. air holes; 26. a ball bearing; 27. a support; 28. a touch switch; 29. and a second spring.
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.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a be used for coal mine goaf ground subsidence detection device which characterized in that: the device comprises a fixed assembly, the solid assembly comprises a protective cover 1 and a supporting rod 2, a lifting wheel assembly is installed on the outer side of the protective cover 1 and comprises a roller 7 and a screw rod 8, a detection system is installed on one side of the protective cover 1 and comprises a detection instrument 3 and a detector 5, a sound insulation assembly is installed on the inner side of the protective cover 1 and comprises an inner cover 10 and a separation cover 11, a sealing mechanism is installed at the bottom of the sound insulation assembly and comprises a sliding plate 13 and a rubber sleeve 15, an electric spark source 16 is installed on the inner side of the inner cover 10, a backflushing assembly is installed on the inner side of the inner cover 10 and comprises a clamping sleeve 19 and a piston 20, a buffer assembly is installed at the bottom of the piston 20 and comprises a guide rod 22 and a universal ball 23, a hook 4 is welded on one side of the protective cover 1, and a scraper is installed at the top of the detection instrument 3, the detecting instrument 3 is hung on a hook 4 through a scraper, a bayonet is arranged on the detecting instrument 3, the detector 5 is clamped on the inner side of the bayonet, a junction box 6 is arranged on the inner side of the detecting instrument 3, a connection wire is arranged on the inner side of the junction box 6, the detecting instrument 3 can be taken down from the hook 4 during working, the connection wire in the junction box 6 is taken out, the detecting instrument 3 is respectively connected with the detector 5 and the shield 1 through the connection wire, the detector 5 is inserted to the ground at different distances and different directions from an electric spark seismic source 16, vibration is generated by the electric spark source 16 and transmitted to the ground, secondary vibration reflected by the ground is induced through the detector 5, and then the underground hole can be detected by the detector 3, so that the detecting instrument can measure and calculate the time, the speed and the subsidence amount of the ground through analyzing the underground structure of the coal mine goaf, the ground subsidence detection work of the coal mine goaf is guaranteed.
In this embodiment, an internal thread is disposed on the inner side of the supporting rod 2, an external thread is disposed on the screw rod 8, the internal thread is matched with the external thread, the bottom end of the screw rod 8 is mounted at the top of the roller 7 through a bearing, the top end of the screw rod 8 penetrates through the supporting rod 2 and extends to the top of the supporting rod 2, a crank 9 is welded to the top end of the screw rod 8, the separation cover 11 is sleeved on the outer side of the inner cover 10, the shield 1 is sleeved on the outer side of the separation cover 11, the bottom of the shield 1 extends inwards to the bottom of the inner cover 10, the inner cover 10 and the bottom of the separation cover 11 are both welded on the inner side of the shield 1, sliding grooves 12 are disposed on the inner sides of the inner cover 10 and the shield 1, the sliding plate 13 is clamped on the inner side of the sliding grooves 12, the top of the sliding plate 13 is connected with the top of the sliding grooves 12 through a first spring 14, the bottom of the sliding plate 13 extends to the bottom of the shield 1, the top of the rubber sleeve 15 is adhered to the bottom of the shield 1, the slide plate 13 is clamped on two sides of the rubber sleeve 15, water is filled in the inner side of the rubber sleeve 15, when the electric spark generator works, the screw rod 8 is rotated through the rocker 9, the screw rod 8 drives the roller 7 to move upwards, the slide plate 13 at the bottom of the shield 1 is clamped on the ground and is extruded by the shield 1, the slide plate 13 moves into the sliding groove 12 and is sealed at the bottom of the shield 1 through the rubber sleeve 15, the inner side of the shield 1 forms double-layer isolation through the partition 11 and the inner cover 10, the bottom of the shield 1 is sealed on the ground through the rubber sleeve 15, the water in the rubber sleeve 15 is used for reducing noise transmission, when the electric spark seismic source 16 works, the noise transmission is greatly reduced, the hearing safety of peripheral workers is effectively guaranteed, and the working comfort of the workers is improved.
In this embodiment, support plates 17 are welded on two sides of the electric spark seismic source 16, a counterweight 18 is welded at the bottom of each support plate 17, an inner wall of an inner cover 10 is welded at the top of a sleeve 19, the outer side of a piston 20 is clamped on the inner wall of the sleeve 19, touch switches 28 are installed on two sides of the bottom of the electric spark seismic source 16, an electromagnet 21 is installed at the top of the sleeve 19 through a bolt, the electromagnet 21 is connected with the top of the piston 20 through a second spring 29, the detecting instrument 3 is connected with the touch switches 28 and the electromagnet 21 through electric wires, the touch switches 28 are connected with the electric spark seismic source 16 through electric wires, when detection is performed, the electromagnet 21 is turned on first, so that the electromagnet 21 contracts the second spring 29 through suction force and attracts the piston 20 upwards to the top of the sleeve 19, the piston 20 drives the support plates 17 upwards through guide rods 22 and moves the electric spark seismic source 16 upwards, when detection work is carried out, the electromagnet 21 is turned off, the electric spark seismic source 16 moves downwards by means of the elastic force of the second spring and the gravity of the electric spark seismic source 16 and other components, the electric spark seismic source 16 is turned on by the touch switch 28 when the electric spark seismic source 16 is about to contact the ground, so that shock waves to the ground are generated when the electric spark seismic source 16 works, reverse impact to the electric spark seismic source 16 from the ground is carried out, downward inertia forces of the support plate 17, the balance weight 18 and the like on the electric spark seismic source 16 are utilized to offset, the electric spark seismic source 16 is effectively prevented from bouncing upwards, the electric spark seismic source 16 is prevented from impacting the inner cover 10, safety of the inner cover 10 is guaranteed, the electric spark seismic source 16 is prevented from pushing the inner cover 10 upwards, the sealing effect of the rubber sleeve 15 to the ground is guaranteed, and sound insulation work is guaranteed.
In this embodiment, the outer side of the guide rod 22 is clamped on the inner wall of the sleeve 19, the universal balls 23 are welded at the bottom of the piston 20 and the top of the support plate 17, the ball sleeves 24 are respectively arranged at the top end and the bottom end of the guide rod 22, the ball sleeves 24 are sleeved at the outer side of the universal balls 23, the air holes 25 are arranged at one side of the sleeve 19, the air holes 25 are uniformly distributed on the sleeve 19, the bracket 27 is welded at the bottom of the sleeve 19, the ball bearings 26 are sleeved on the bracket 27, the ball bearings 26 are clamped at the outer side of the guide rod 22, the ball bearings 26 are uniformly distributed at the bottom of the sleeve 19, when the electromagnet 21 is closed, the second spring 29 pushes the piston 20 downwards, air flows into the sleeve through the air holes 25, the number of the air holes 25 at the top of the piston 20 is continuously increased along with the downward movement of the piston 20, the flow speed of the air into the sleeve 19 is continuously increased, the shield 1 is prevented from being pushed upwards due to the elasticity of the second spring 29 at the moment when the electromagnet 21 is closed, the sealing and fixing of the protective cover 1 to the ground are guaranteed, the guide rod 22 pushes the support rod 17 to move downwards under the downward pushing of the piston 20, after the guide rod 22 leaves the cutting sleeve 19 and the electric spark seismic source 16 works under the reaction force of the ground, the support rod 17 can deflect at any angle at the bottom of the guide rod 22 through the universal ball 23, the top end of the guide rod 22 deflects through the universal ball 23, and further when the electric spark seismic source 16 receives horizontal component force, the electric spark seismic source can horizontally move through the universal ball 23 on the guide rod 22, the inner cover 10 cannot be pushed in the horizontal direction, the sliding plate 13 and the rubber sleeve 15 are prevented from being abraded with the ground, and the safety of equipment such as the rubber sleeve 15 and the sliding plate 13 is guaranteed.
The ground subsidence detection device for the coal mine goaf provides electric energy for all electric equipment through an external power supply, when the device works, the lead screw 8 is rotated through the rocker 9, the lead screw 8 drives the roller 7 to move upwards, further the sliding plate 13 at the bottom of the shield 1 is clamped on the ground, and under the extrusion of the shield 1, the sliding plate 13 is moved into the chute 12 and is sealed at the bottom of the shield 1 by the rubber sleeve 15, the inner side of the shield 1 forms double-layer isolation through the separation cover 11 and the inner cover 10, the bottom of the shield 1 is sealed on the ground by the rubber sleeve 15, the noise transmission is reduced by using water in the rubber sleeve 15, when the electric spark focus 16 works, the noise transmission is greatly reduced, the hearing safety of peripheral workers is effectively ensured, the working comfort of the workers is improved, the electromagnet 21 is firstly opened, so that the electromagnet 21 enables the spring two 29 to shrink through suction, the piston 20 is attracted upwards to the top of the clamping sleeve 19, the support plate 17 is driven upwards by the piston 20 through the guide rod 22, the electric spark seismic source 16 moves upwards, the electromagnet 21 is turned off during detection, the electric spark seismic source 16 moves downwards by means of the elastic force of the spring II and the gravity of the electric spark seismic source 16 and other components, the contact switch 28 is turned on to turn on the electric spark seismic source 16 when the electric spark seismic source 16 is about to contact the ground, so that the electric spark seismic source 16 generates impact waves on the ground, the ground impacts the electric spark seismic source 16 in the reverse direction, downward inertia forces of the support plate 17, the balance weight 18 and the like on the electric spark seismic source 16 are utilized to offset, the electric spark seismic source 16 is effectively prevented from bouncing upwards, the electric spark seismic source 16 is prevented from impacting the inner cover 10, the safety of the inner cover 10 is guaranteed, the electric spark seismic source 16 is prevented from pushing upwards towards the inner cover 10, the sealing effect of the rubber sleeve 15 on the ground is guaranteed, the sound insulation work is guaranteed, when the electromagnet 21 is closed, the spring II 29 pushes the piston 20 downwards, air flows into the cutting sleeve through the air holes 25, the number of the air holes 25 in the top of the piston 20 is increased continuously along with the downward movement of the piston 20, the flowing speed of the air into the cutting sleeve 19 is increased continuously, the situation that the shield 1 is pushed upwards to open due to the elastic force of the spring II 29 at the moment when the electromagnet 21 is closed is avoided, the sealing and fixing of the shield 1 on the ground is guaranteed, the guide rod 22 pushes the support rod 17 to move downwards under the downward pushing of the piston 20, after the guide rod 22 leaves the cutting sleeve 19 and after the electric spark source 16 works and is subjected to the reaction force of the ground, the support rod 17 can deflect at any angle at the bottom of the guide rod 22 through the universal ball 23, the top end of the guide rod 22 deflects through the universal ball 23, and further when the electric spark source 16 is subjected to horizontal component force, can carry out horizontal migration through universal ball 23 on the guide arm 22, can not produce the promotion of horizontal direction to inner cover 10, and then avoid slide 13 and rubber sleeve 15 and ground to produce wearing and tearing, ensure the safety of equipment such as rubber sleeve 15 and slide 13.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics 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 specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (10)
1. The utility model provides a be used for coal mine goaf ground subsidence detection device which characterized in that: including fixed subassembly, the solid subassembly includes guard shield (1) and branch (2), the lifting wheel subassembly is installed in the outside of guard shield (1), the lifting wheel subassembly includes gyro wheel (7) and lead screw (8), detection system is installed to one side of guard shield (1), detection system includes detection instrument (3) and detector (5), its characterized in that: the utility model discloses a damping device, including guard shield (1), the inboard subassembly that gives sound insulation of installing of guard shield (1), the subassembly that gives sound insulation includes inner cover (10) and separates cover (11), sealing mechanism is installed to the bottom of subassembly that gives sound insulation, sealing mechanism includes slide (13) and rubber sleeve (15), electric spark source (16) are installed to the inboard of inner cover (10), the recoil subassembly is installed to the inboard of inner cover (10), the recoil subassembly includes cutting ferrule (19) and piston (20), the buffering subassembly is installed to the bottom of piston (20), the buffering subassembly includes guide arm (22) and universal ball (23).
2. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: the welding of one side of guard shield (1) has couple (4), the scraper blade is installed at the top of detection instrument (3), detection instrument (3) are hung on couple (4) through the scraper blade.
3. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: the detector (3) is provided with a bayonet, the detector (5) is clamped on the inner side of the bayonet, a junction box (6) is installed on the inner side of the detector (3), and a wiring is installed on the inner side of the junction box (6).
4. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: the utility model discloses a lead screw, including branch (2), lead screw (8), internal thread, bearing, pivot, internal thread and external screw thread, the inboard of branch (2) is seted up there is the internal thread, the external screw thread has been seted up on lead screw (8), the internal thread cooperatees with the external screw thread, the top at gyro wheel (7) is installed through the bearing in the bottom of lead screw (8), the top of branch (2) is passed and the top that extends to branch (2) is passed on the top of lead screw (8), the top welding of lead screw (8) has crank (9).
5. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: separate the cover (11) and establish the outside at inner cover (10), guard shield (1) cover is established in the outside that separates cover (11), the bottom of guard shield (1) inwards extends to the bottom of inner cover (10), inner cover (10) and the bottom that separates cover (11) all weld the inboard at guard shield (1).
6. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: the inner sides of the inner cover (10) and the protective cover (1) are provided with sliding grooves (12), the sliding plate (13) is clamped on the inner side of the sliding grooves (12), the top of the sliding plate (13) is connected with the top of the sliding grooves (12) through a first spring (14), the bottom of the sliding plate (13) extends to the bottom of the protective cover (1), the top of the rubber sleeve (15) is bonded to the bottom of the protective cover (1), the sliding plate (13) is clamped on the two sides of the rubber sleeve (15), and water is filled in the inner side of the rubber sleeve (15).
7. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: both sides of the electric spark seismic source (16) are welded with support plates (17), the bottom of each support plate (17) is welded with a balance weight (18), the top of each clamping sleeve (19) is welded with the inner wall of the inner cover (10), the outer side of each piston (20) is clamped on the inner wall of each clamping sleeve (19), and both sides of the bottom of the electric spark seismic source (16) are provided with touch switches (28).
8. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: the top of the clamping sleeve (19) is provided with an electromagnet (21) through a bolt, the electromagnet (21) is connected with the top of the piston (20) through a second spring (29), the detecting instrument (3) is connected with a touch switch (28) and the electromagnet (21) through electric wires, and the touch switch (28) is connected with an electric spark seismic source (16) through electric wires.
9. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: the outer side of the guide rod (22) is clamped on the inner wall of the clamping sleeve (19), universal balls (23) are welded to the bottom of the piston (20) and the top of the support plate (17), ball sleeves (24) are arranged at the top end and the bottom end of the guide rod (22), and the ball sleeves (24) are sleeved on the outer side of the universal balls (23).
10. The device for detecting ground subsidence of a coal mine goaf according to claim 1, characterized in that: air holes (25) are formed in one side of the clamping sleeve (19), the air holes (25) are evenly distributed in the clamping sleeve (19), a support (27) is welded to the bottom of the clamping sleeve (19), balls (26) are sleeved on the support (27), the balls (26) are clamped on the outer side of the guide rod (22), and the balls (26) are evenly distributed at the bottom of the clamping sleeve (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528448.5A CN114923456B (en) | 2022-05-16 | Ground subsidence detection device for coal mine goaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528448.5A CN114923456B (en) | 2022-05-16 | Ground subsidence detection device for coal mine goaf |
Publications (2)
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| CN114923456A true CN114923456A (en) | 2022-08-19 |
| CN114923456B CN114923456B (en) | 2024-05-14 |
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| CN117073624A (en) * | 2023-10-11 | 2023-11-17 | 中煤科工集团武汉设计研究院有限公司 | Coal mine goaf earth surface subsidence monitoring device |
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