Mining explosion-proof optical fiber osmometer
By designing the component structure of the explosion-proof fiber lyometer, the problem of cement slurry wrapped fiber lyometer is solved, and the normal and convenient operation of gas pressure monitoring is achieved.
Patent Information
- Application Number
- CN202422135129.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-30
AI Technical Summary
When existing fiber optic osmometers monitor gas pressure in coal seam holes, cement slurry is prone to wrapping, resulting in monitoring failure.
A mining explosion-proof fiber osmometer is designed, including protective tubes, folding shading components, elastic pushing components, pulling components and limiting components. The pulling components are driven by the limiting components, and the elastic pushing components make the shading end contact with the inner wall of the hole, preventing cement slurry from flowing, and the multi-layer fan baffle ensures the shading effect.
Effectively prevent cement slurry from flowing around the fiber optic slurry, ensure normal gas pressure monitoring, convenient operation, and avoid damage to the fiber by cement slurry.
Smart Images
Figure CN223091430U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of osmometers, and more particularly to a mine explosion-proof fiber optic osmometer. Background Technique
[0002] The coal seam gas pressure is a basic parameter for studying the flow and outburst of coal seam gas, and is also one of the driving forces for coal and gas outbursts. The magnitude of the coal seam gas pressure determines the amount of coal seam gas content, the level of gas flow driving force, and the gas potential of gas dynamic phenomena. In order to avoid the sudden increase of gas in the coal seam leading to gas explosion in the coal mine, it is necessary to monitor the gas pressure inside the coal seam through a fiber optic osmometer, so as to accurately measure the gas pressure and formulate effective and reasonable measures for preventing and controlling gas in the mine.
[0003] When monitoring the gas pressure inside the coal seam through a fiber optic osmometer, it is necessary to drill holes in the coal seam, then put the fiber optic osmometer into the hole, and finally seal the hole with cement slurry. When pouring the cement slurry, the cement slurry is easily wrapped around the fiber optic osmometer inside the hole under the push of the mud pump, which easily causes the fiber optic osmometer to be unable to monitor the gas pressure inside the coal seam.
[0004] In view of the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model
[0005] In view of the problems in the related art, the utility model provides a mine explosion-proof fiber optic osmometer to overcome the above technical problems existing in the existing related art.
[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0007] The utility model is a mine explosion-proof fiber optic osmometer, which includes a protection tube. A fiber optic osmometer component is arranged at the bottom of the protection tube. A folding shielding component is arranged on the outer surface of the protection tube. A elastic pushing component is arranged at the top of the folding shielding component. A pulling component is arranged on the outer surface of the protection tube. The pulling end of the pulling component is connected with the moving end of the folding shielding component. A limiting component is arranged at the top of the pulling component.
[0008] Further, the fiber optic osmometer component includes an osmometer. Connecting flanges are arranged at the top of the osmometer and the bottom end of the protection tube respectively, and the two connecting flanges are fixedly installed together. An optical fiber is fixedly connected to the top of the osmometer, and the optical fiber is inside the protection tube.
[0009] Furthermore, the folding shielding assembly includes a fixed seat, the fixed seat is fixedly connected to the protection tube, a sector baffle is rotatably connected inside the fixed seat, a moving ring is movably connected to the outer surface of the protection tube, connection seats are arranged on the outer surfaces of the moving ring and the top of the sector baffle, a connecting rod is rotatably connected inside the connection seat, a plurality of sector baffles are arranged in a circumferential array on the outer surface of the protection tube, and multiple layers of sector baffles are arranged up and down.
[0010] Furthermore, the elastic pushing assembly includes a fixed ring, the fixed ring is fixedly connected to the protection tube, a spring is fixedly connected between the fixed ring and the moving ring, a limiting ring is fixedly connected to the outer surface of the protection tube, and the limiting ring is located at the bottom of the moving ring.
[0011] Furthermore, the pulling assembly includes a pulling ring, the pulling ring is movably connected to the protection tube, a pulling rope is fixedly connected to the bottom of the pulling ring, the bottom end of the pulling rope is fixedly connected to the moving ring, a limiting frame is fixedly connected to the outer surface of the protection tube, and the pulling rope is movably connected to the limiting frame.
[0012] Furthermore, the limiting assembly includes a limiting ring, the limiting tube is threadedly connected to the protection tube, a T-shaped ring is fixedly connected to the bottom of the limiting tube, a T-shaped groove is formed in the top of the pulling ring corresponding to the T-shaped ring, and the T-shaped ring is rotatably connected to the T-shaped groove.
[0013] Furthermore, anti-slip grooves are formed on the outer surface of the limiting tube, and a blocking ring is fixedly connected to the top end of the protection tube.
[0014] The utility model has the following beneficial effects:
[0015] 1. By driving the limiting assembly, the pulling assembly can be made not to pull the folding shielding assembly. At this time, the shielding end of the folding shielding assembly can be pushed open by the elastic pushing assembly and directly contact with the inner wall of the hole. This setting makes it not easy for the cement slurry to flow to the periphery of the fiber optic piezometer assembly under the shielding of the folding shielding assembly when pouring the cement slurry into the hole, so that the fiber optic piezometer assembly can monitor the gas pressure in the hole normally.
[0016] 2. By arranging multiple layers of sector baffles in a circumferential array on the outer surface of the protection tube, the gaps between adjacent two sector baffles in the same layer can be blocked by the sector baffles in different layers after all the sector baffles are opened, so that the effect of the multiple layers of sector baffles in shielding the cement slurry can be ensured.
[0017] 3. By rotating the limit tube of the present utility model, the limit tube drives the pulling ring to move downward through the T-shaped ring and the T-shaped groove. At this time, the spring can push the moving ring downward, and the moving ring can push all the sector baffles through a plurality of connecting rods, so that the sector baffles complete the occlusion of the holes. The whole opening process only needs to rotate the limit tube, and the operation is relatively convenient.
[0018] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 Schematic diagram of the external contour structure of the present utility model;
[0021] Figure 2 Schematic diagram of the folding occlusion assembly structure of the present utility model;
[0022] Figure 3 Schematic diagram of the elastic pushing assembly structure of the present utility model;
[0023] Figure 4 For the present utility model Figure 3 Schematic diagram of the enlarged structure at A;
[0024] Figure 5 Schematic diagram of the pulling assembly structure of the present utility model;
[0025] Figure 6 Schematic diagram of the limit assembly structure of the present utility model.
[0026] In the drawings, the list of components represented by each reference numeral is as follows:
[0027] 1. Protection tube; 2. Fiber optic piezometer assembly; 201. Piezometer; 202. Connecting flange; 203. Optical fiber; 3. Folding occlusion assembly; 301. Fixed seat; 302. Sector baffle; 303. Moving ring; 304. Connecting seat; 305. Connecting rod; 4. Elastic pushing assembly; 401. Fixed ring; 402. Spring; 403. Limit ring; 5. Pulling assembly; 501. Pulling ring; 502. Pulling rope; 503. Limit frame; 6. Limit assembly; 601. Limit tube; 602. T-shaped ring; 603. T-shaped groove; 7. Anti-slip groove; 8. Blocking ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without making creative efforts belong to the scope of protection of the utility model.
[0029] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicating the orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the utility model.
[0030] Please refer to Figures 1-6 As shown, the present utility model is a mine explosion-proof optical fiber osmometer, including a protection tube 1. A fiber optic osmometer assembly 2 is provided at the bottom of the protection tube 1. A folding shielding assembly 3 is provided on the outer surface of the protection tube 1. A elastic pushing assembly 4 is provided at the top of the folding shielding assembly 3. A pulling assembly 5 is provided on the outer surface of the protection tube 1. The pulling end of the pulling assembly 5 is connected to the moving end of the folding shielding assembly 3. A limiting assembly 6 is provided at the top of the pulling assembly 5.
[0031] By moving the protection tube 1, the fiber optic osmometer assembly 2 can be moved into the hole opened in the coal seam. Then, by driving the limiting assembly 6, the limiting assembly 6 no longer limits the pulling assembly 5. At this time, the pulling assembly 5 also no longer pulls the folding shielding assembly 3. Then, the folding shielding assembly 3 can be opened under the push of the elastic pushing assembly 4 and the shielding end of the folding shielding assembly 3 contacts the inner wall of the hole. Then, the pouring of the cement slurry starts and the hole is sealed.
[0032] By driving the limiting assembly 6, the pulling assembly 5 no longer pulls the folding shielding assembly 3. At this time, the shielding end of the folding shielding assembly 3 can be opened under the push of the elastic pushing assembly 4 and directly contacts the inner wall of the hole. This setting makes it difficult for the cement slurry to flow around the fiber optic osmometer assembly 2 under the shielding of the folding shielding assembly 3 when pouring the cement slurry into the hole, so that the fiber optic osmometer assembly 2 can operate normally when monitoring the gas pressure in the hole.
[0033] In one embodiment, for the above-mentioned optical fiber piezometer assembly 2, the optical fiber piezometer assembly 2 includes a piezometer 201. Connecting flanges 202 are provided at the top of the piezometer 201 and the bottom end of the protective tube 1, and the two connecting flanges 202 are fixedly installed together. An optical fiber 203 is fixedly connected to the top of the piezometer 201, and the optical fiber 203 is located inside the protective tube 1.
[0034] Since the overall hardness of the protective tube 1 is set, the piezometer 201 can be conveniently moved to a suitable position inside the hole driven by the protective tube 1. The arrangement that the optical fiber 203 is inside the protective tube 1 ensures that when pouring cement slurry into the hole, the heat generated during the solidification of the cement slurry will not damage the optical fiber under the protection of the protective tube 1. The gas in the coal seam flows through the water-permeable stone at the bottom of the piezometer 201 into the piezometer 201. When the amount of gas in the coal seam increases, the gas pressure will also increase accordingly. The sensitive stainless steel diaphragm inside the piezometer 201 moves under the push of the increased air pressure. At this time, this small displacement can be measured by the fiber grating element on the upper side of the stainless steel diaphragm. Then, the fiber grating element transmits the measured change to the fiber grating analyzer through the optical fiber 203 and is demodulated and displayed here.
[0035] In one embodiment, for the above-mentioned folding shielding assembly 3, the folding shielding assembly 3 includes a fixed seat 301. The fixed seat 301 is fixedly connected to the protective tube 1. A sector-shaped baffle 302 is rotatably connected inside the fixed seat 301. A moving ring 303 is movably connected to the outer surface of the protective tube 1. Connecting seats 304 are provided on the outer surfaces of the moving ring 303 and the top of the sector-shaped baffle 302. A connecting rod 305 is rotatably connected inside the connecting seat 304. A plurality of sector-shaped baffles 302 are arranged in a circumferential array on the outer surface of the protective tube 1, and the sector-shaped baffles 302 are arranged in multiple layers up and down.
[0036] By moving the moving ring 303, at this time, the moving ring 303 can drive one end of the connecting rod 305 to rotate through the corresponding connecting seat 304. The other end of the rotating connecting rod 305 drives the sector-shaped baffle 302 to rotate on the fixed seat 301 through the corresponding connecting seat 304, so that the sector-shaped baffle 302 can be opened to shield the hole. The arrangement of multiple connecting rods 305 and connecting seats 304 enables all the sector-shaped baffles 302 outside the protective tube 1 to be opened together. The whole operation only needs to move the moving ring 303. At the same time, the arrangement of the sector-shaped baffles 302 in multiple layers ensures that the gaps between adjacent two sector-shaped baffles 302 in the same layer can be shielded by the sector-shaped baffles 302 in different layers after all the sector-shaped baffles 302 are opened, so as to ensure the effect of multiple sector-shaped baffles 302 in shielding the cement slurry.
[0037] In one embodiment, for the above-mentioned elastic pushing component 4, the elastic pushing component 4 includes a fixing ring 401, the fixing ring 401 is fixedly connected to the protection tube 1, a spring 402 is fixedly connected between the fixing ring 401 and the moving ring 303, a limiting ring 403 is fixedly connected to the outer surface of the protection tube 1, and the limiting ring 403 is located at the bottom of the moving ring 303.
[0038] The spring 402 can push the moving ring 303 downward, so that the moving ring 303 can drive all the sector baffles 302 to be limited through the connecting rod 305. The setting of the spring 402 enables the moving ring 303 to move downward normally when the pulling component 5 does not pull the moving ring 303. At the same time, when the sector baffle 302 is perpendicular to the protection tube 1, the moving ring 303 contacts the limiting ring 403. This setting ensures that the sector baffle 302 will not rotate downward during the subsequent pouring of cement, thereby ensuring the overall shielding effect of the sector baffle 302.
[0039] In one embodiment, for the above-mentioned pulling component 5, the pulling component 5 includes a pulling ring 501, the pulling ring 501 is movably connected to the protection tube 1, a pulling rope 502 is fixedly connected to the bottom of the pulling ring 501, the bottom end of the pulling rope 502 is fixedly connected to the moving ring 303, a limiting frame 503 is fixedly connected to the outer surface of the protection tube 1, and the pulling rope 502 is movably connected to the limiting frame 503.
[0040] By pulling the pulling ring 501, the pulling ring 501 can drive the pulling rope 502 to move upward. At this time, the moving ring 303 can squeeze the spring 402 upward under the pulling of the pulling rope 502 and drive all the sector baffles 302 to close together through the connecting rod 305. This setting ensures that when the protection tube 1 is inserted into the hole, the sector baffle 302 will not contact the inner wall of the hole under the push of the spring 402, so that the protection tube 1 will not be hindered when moving inside the hole. At the same time, the limiting frame 503 can limit the pulling rope 502, so that the pulling rope 502 will not shake randomly when the pulling rope 502 is pulled by the pulling ring 501.
[0041] In one embodiment, for the above-mentioned limiting component 6, the limiting component 6 includes a limiting tube 601, the limiting tube 601 is threadedly connected to the protection tube 1, a T-shaped ring 602 is fixedly connected to the bottom of the limiting tube 601, a T-shaped groove 603 is provided at the top of the pulling ring 501 corresponding to the T-shaped ring 602, and the T-shaped ring 602 is rotatably connected to the T-shaped groove 603.
[0042] By rotating the limit tube 601, the limit tube 601 moves up and down on the outer surface of the protection tube 1. At this time, the T-shaped ring 602 rotates inside the T-shaped groove 603. At the same time, the moving limit tube 601 can drive the pulling ring 501 to move through the T-shaped ring 602 and the T-shaped groove 603. Therefore, when pulling the pulling rope 502, only the limit tube 601 needs to be rotated. Thus, when inserting the protection tube 1 into the hole, it is not necessary to always pull the moving ring 303 through the pulling ring 501 and the pulling rope 502.
[0043] In one embodiment, for the above-mentioned limit tube 601, an anti-slip groove 7 is formed on the outer surface of the limit tube 601, and a blocking ring 8 is fixedly connected to the top end of the protection tube 1.
[0044] The limit tube 601 can be rotated through the anti-slip groove 7. The anti-slip groove 7 is provided so that it is not easy to slip when rotating the limit tube 601. At the same time, under the blocking of the blocking ring 8, the limit tube 601 is not easy to break away from the outer surface of the protection tube 1.
[0045] Through the above technical solutions: 1. By driving the limit component 6, the pulling component 5 can be made not to pull the folding shielding component 3. At this time, the shielding end of the folding shielding component 3 can be opened under the push of the elastic force pushing component 4 and directly contact the inner wall of the hole. This setting makes it not easy for the cement slurry to flow to the periphery of the fiber optic piezometer component 2 under the shielding of the folding shielding component 3 when pouring the cement slurry into the hole, so that the fiber optic piezometer component 2 can work normally when monitoring the gas pressure in the hole; 2. By arranging multiple layers of sector baffles 302 circumferentially and integrally on the outer surface of the protection tube, the gaps between two adjacent sector baffles 302 in the same layer can be blocked by the sector baffles 302 in different layers after all the sector baffles 302 are opened, so that the effect of the multiple layers of sector baffles 302 in shielding the cement slurry can be ensured; 3. By rotating the limit tube 601, the limit tube 601 drives the pulling ring 501 to move downward through the T-shaped ring 602 and the T-shaped groove 603. At this time, the spring 402 can push the moving ring 303 downward, and the moving ring 303 can push all the sector baffles 302 through multiple connecting rods 305 to complete the shielding of the hole by the sector baffles 302. The whole opening process only needs to rotate the limit tube 601, and the operation is relatively convenient.
[0046] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not exhaust all the details, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.
Claims
1. Mine explosion-proof fiber optic osmometer, including a protective tube (1), characterized in that, The bottom of the protective tube (1) is provided with an optical fiber piezometer assembly (2), the outer surface of the protective tube (1) is provided with a folding shielding assembly (3), the top of the folding shielding assembly (3) is provided with an elastic pushing assembly (4), the outer surface of the protective tube (1) is provided with a pulling assembly (5), the pulling end of the pulling assembly (5) is connected to the moving end of the folding shielding assembly (3), and the top of the pulling assembly (5) is provided with a limiting assembly (6).
2. The mine explosion-proof fiber optic osmometer according to claim 1, wherein The optical fiber piezometer assembly (2) includes a piezometer (201). Connecting flanges (202) are provided at the top of the piezometer (201) and the bottom end of the protective tube (1), and the two connecting flanges (202) are fixedly installed together. An optical fiber (203) is fixedly connected to the top of the piezometer (201), and the optical fiber (203) is inside the protective tube (1).
3. The mine explosion-proof optical fiber osmometer according to claim 1, characterized in that, The folding shielding assembly (3) includes a fixed seat (301). The fixed seat (301) is fixedly connected to the protective tube (1). A sector-shaped baffle (302) is rotatably connected inside the fixed seat (301). A moving ring (303) is movably connected to the outer surface of the protective tube (1). Connecting seats (304) are provided on the outer surface of the moving ring (303) and the top of the sector-shaped baffle (302). A connecting rod (305) is rotatably connected inside the connecting seat (304). A plurality of sector-shaped baffles (302) are arranged in a circumferential array on the outer surface of the protective tube (1), and the sector-shaped baffles (302) are arranged in multiple layers up and down.
4. The mine explosion-proof fiber optic osmometer according to claim 3, wherein, The elastic pushing assembly (4) includes a fixed ring (401). The fixed ring (401) is fixedly connected to the protective tube (1). A spring (402) is fixedly connected between the fixed ring (401) and the moving ring (303). A limiting ring (403) is fixedly connected to the outer surface of the protective tube (1), and the limiting ring (403) is at the bottom of the moving ring (303).
5. The mine explosion-proof fiber optic osmometer according to claim 4, characterized in that, The pulling assembly (5) includes a pulling ring (501). The pulling ring (501) is movably connected to the protective tube (1). A pulling rope (502) is fixedly connected to the bottom of the pulling ring (501), and the bottom end of the pulling rope (502) is fixedly connected to the moving ring (303). A limiting frame (503) is fixedly connected to the outer surface of the protective tube (1), and the pulling rope (502) is movably connected to the limiting frame (503).
6. The mine explosion-proof optical fiber osmometer according to claim 5, characterized in that, The limiting assembly (6) includes a limiting tube (601). The limiting tube (601) is threadedly connected to the protective tube (1). A T-shaped ring (602) is fixedly connected to the bottom of the limiting tube (601). A T-shaped groove (603) is provided on the top of the pulling ring (501) corresponding to the T-shaped ring (602), and the T-shaped ring (602) is rotatably connected to the T-shaped groove (603).
7. The mine explosion-proof fiber optic osmometer according to claim 6, characterized in that, An anti-slip groove (7) is provided on the outer surface of the limiting tube (601), and a blocking ring (8) is fixedly connected to the top end of the protective tube (1).