Coal bed gas fracturing monitoring device

Abstract

The utility model discloses a coal bed gas fracturing monitoring device, which relates to the technical field of coal mining, and comprises two groups of bases, the top ends of the two groups of bases are jointly provided with a lifting assembly capable of realizing lifting, and the lifting assembly comprises threaded rods which are respectively and rotatably arranged at the central positions of the top ends of the two groups of bases; the top ends of the two threaded rods are jointly provided with a top plate, the peripheral surfaces of the two threaded rods are sleeved with first sliding blocks in a threaded mode, a bearing plate used for placing a detector is jointly and fixedly installed between the two first sliding blocks, and the top ends of the two threaded rods rotate, extend to the outer top face of the top plate and are fixedly provided with fluted discs. According to the lifting device, through the arranged lifting assembly, the situation that lifting cannot be achieved due to insufficient lifting force caused by single-side lifting of the lifting device can be avoided, meanwhile, the situation of shaking in the lifting process can be avoided, and therefore practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a coalbed methane fracturing monitoring device. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, tunnels are usually dug underground to mine the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil is usually stripped off to mine the coal; this is called an open-pit coal mine.

[0003] For example, a Chinese patent discloses a monitoring device for coalbed methane fracturing (publication number CN220061142U), which includes a support rod and a moving device. A control box is fixedly connected to the upper surface of the support rod, a photovoltaic panel is fixedly connected to the surface of the support rod, a transmission line is fixedly connected inside the support rod, and a detector is fixedly connected to the surface of the transmission line; the moving device is provided on the surface of the support rod and the detector.

[0004] However, the aforementioned publicly available documents utilize a threaded rod to adjust the height of the geophone, facilitating its retrieval and reducing operation time. Simultaneously, the sliding rod, hollow block, and positioning rod provide auxiliary support for the geophone, reducing the possibility of excessive weight damaging the moving plate or threaded rod. However, in practical use, due to the geophone's weight, lifting and lowering it using only unilateral pulling force may result in insufficient power, and gravity imbalance could lead to the geophone becoming too heavy and damaging the moving plate or threaded rod. Therefore, its practicality in actual use is limited. To address these issues, those skilled in the art have provided a coalbed methane fracturing monitoring device to resolve the problems mentioned in the background section. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a coalbed methane fracturing monitoring device, which solves the problems mentioned in the background art, such as the detector being too heavy, which may not be able to be lifted or lowered due to insufficient power when lifted and lowered by only one side of the tension, and may also cause the detector to be too heavy and damage the moving plate or threaded rod due to gravity imbalance, thus resulting in poor practicality in actual use.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a coalbed methane fracturing monitoring device, comprising two sets of bases, the top of which is provided with a lifting component capable of lifting and lowering;

[0007] The lifting assembly includes threaded rods rotatably mounted at the center of the top of two sets of bases. The top of the two threaded rods is provided with a top plate, and the center of the outer top surface of the top plate is provided with a through-type opening. The outer peripheral surfaces of the two threaded rods are threaded with sliders. A receiving plate for placing a detector is fixedly installed between the two sliders. The tops of the two threaded rods rotate and extend to the outer top surface of the top plate, and are fixedly installed with a gear plate.

[0008] Square covers are symmetrically installed on the front side of the outer top of the top plate. Worms are rotatably installed on the inner walls of the left and right sides of the two square covers. One end of each of the two worms extends to the outside of the square covers and is fixed to each other by a connecting rod. Rotating shafts are rotatably installed on the rear inner walls of the two square covers and above the worms. U-shaped covers are fixedly installed on both sides of the top of the top plate and outside the gear plate. A worm wheel is fixedly installed on one end of the rotating shaft, while the other end extends through the square cover into the inside of the U-shaped cover, and a gear is fixedly installed on its outer circumferential surface.

[0009] As a further technical solution of this utility model, a drive motor is fixedly installed on the front right end of the outer top surface of the top plate, one end of one of the worms extends to the outside of the square cover and is fixedly connected to the output end of the drive motor, the two worms are meshed with the two worm wheels, and the two gears are meshed with the gear disc.

[0010] As a further technical solution of this utility model, guide rods are fixedly installed on the top of the two sets of bases and on both sides outside the threaded rod. The top of the two pairs of guide rods is fixedly connected to the top plate. At the same time, sliders are slidably sleeved on the outside of the two pairs of guide rods. One end of the two pairs of sliders is fixedly connected to the receiving plate.

[0011] As a further technical solution of this utility model, arc-shaped rings are fixedly installed on the front and rear sides of the top of the receiving plate, and arc-shaped straight plates are rotatably connected at the center of the top of the two arc-shaped rings, and semi-circular connecting plates are rotatably connected at the center of the top of the two arc-shaped straight plates.

[0012] As a further technical solution of this utility model, a groove is provided at the top of one connecting plate, and a card plate that matches the groove is installed at the top of the other connecting plate. The card plate is inserted into the inner side of the groove and is threadedly connected to each other by a positioning screw.

[0013] As a further technical solution of this utility model, a square plate is fixedly installed on the front outer wall of the top plate, a support rod is fixedly installed on the outer top surface of the square plate, a solar photovoltaic power generation panel is set on the top of the support rod through a bracket, a control box is fixedly installed on the top of the square plate, and the solar photovoltaic power generation panel and the control box are electrically connected to each other.

[0014] This utility model provides a coalbed methane fracturing monitoring device, which has the following advantages compared with the prior art:

[0015] 1. The coalbed methane fracturing monitoring device designed in this paper, through the setting of the lifting component, can prevent the lifting device from being unable to lift due to insufficient lifting force caused by unilateral lifting and lowering. At the same time, it can also avoid the situation where swaying during the lifting and lowering process causes gravity imbalance and damages the moving plate or threaded rod, thereby improving its practicality.

[0016] 2. The coalbed methane fracturing monitoring device designed in this paper uses an arc-shaped ring, an arc-shaped straight plate, a connecting plate, a groove, a clamping plate, and a positioning screw to interact and limit the detector to prevent it from shaking. At the same time, it can also protect the detector during the lifting and lowering process to prevent solid debris such as gravel from falling and damaging the detector, thereby further improving its practicality. Attached Figure Description

[0017] Figure 1 A first three-dimensional structural schematic diagram of a coalbed methane fracturing monitoring device;

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of a coalbed methane fracturing monitoring device;

[0019] Figure 3 A cross-sectional three-dimensional structural schematic diagram of a coalbed methane fracturing monitoring device;

[0020] Figure 4 This is a three-dimensional structural diagram of the lifting component of a coalbed methane fracturing monitoring device.

[0021] In the picture:

[0022] 1. Base;

[0023] 2. Lifting assembly; 201. Threaded rod; 202. Top plate; 203. Opening; 204. Slider 1; 205. Support plate; 206. Gear disc; 207. Square cover; 208. Worm gear; 209. Connecting rod; 210. Rotating shaft; 211. U-shaped cover; 212. Worm wheel; 213. Gear;

[0024] 3. Drive motor; 301. Guide rod; 302. Slider II;

[0025] 4. Arc-shaped ring; 401. Arc-shaped straight plate; 402. Connecting plate; 403. Groove; 404. Clamping plate; 405. Positioning screw;

[0026] 5. Square plate; 501. Support rod; 502. Solar photovoltaic panel; 503. Control box. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4This utility model provides a technical solution for a coalbed methane fracturing monitoring device: Two sets of bases 1 are jointly equipped with a lifting assembly 2 capable of lifting and lowering. The lifting assembly 2 includes threaded rods 201 rotatably installed at the center of the top of each of the two sets of bases 1. The tops of the two threaded rods 201 are jointly provided with a top plate 202, and a through-hole 203 is opened at the center of the outer top surface of the top plate 202. Slider blocks 204 are threadedly connected to the outer circumferential surfaces of the two threaded rods 201. The two sliders 204... A receiving plate 205 for placing the detector is fixedly installed between the two sides. The top ends of two threaded rods 201 rotate and extend to the outer top surface of the top plate 202, and a gear plate 206 is fixedly installed thereon. Square covers 207 are symmetrically installed on the front side of the outer top surface of the top plate 202. Worms 208 are rotatably installed on the inner walls of the left and right sides of the two square covers 207. The corresponding ends of the two worms 208 extend to the outside of the square covers 207 and are fixed to each other by connecting rods 209. The rear inner walls of the two square covers 207 and A rotating shaft 210 is rotatably mounted above the worm gear 208. U-shaped covers 211 are fixedly mounted on both sides of the top of the top plate 202, outside the gear disc 206. A worm gear 212 is fixedly mounted on one end of the rotating shaft 210, while the other end extends through the square cover 207 into the interior of the U-shaped cover 211, and a gear 213 is fixedly mounted on its outer circumference. A drive motor 3 is fixedly mounted on the front right end of the outer top surface of the top plate 202. One end of one of the worm gears 208 extends into the square cover 207. Externally, it is fixedly connected to the output end of the drive motor 3. The two worms 208 are meshed with the two worm wheels 212, and the two gears 213 are meshed with the gear plate 206. Guide rods 301 are fixedly installed on the top of the two sets of bases 1 and on both sides of the outside of the threaded rod 201. The top of the two pairs of guide rods 301 is fixedly connected to the top plate 202. At the same time, sliders 302 are slidably sleeved on the outside of the two pairs of guide rods 301. One end of the two pairs of sliders 302 is fixedly connected to the receiving plate 205.When the detector needs to be removed for maintenance, the drive motor 3 is controlled and started. Under the action of the connecting rod 209, the two worm gears 208 are driven to synchronously drive the two worm wheels 212 to rotate inside the square cover 207. This drives the two rotating shafts 210 to drive the gears 213 to rotate. Under the meshing transmission characteristics of the gears 213, the two gear discs 206 drive the two threaded rods 201 to rotate synchronously. Then, with the assistance of the guide rod 301, the receiving plate 205 is stably pushed to move the detector up and down. The lifting mechanism avoids insufficient lift due to unilateral lifting, preventing the device from failing to lift. It also prevents swaying during lifting that could cause gravity imbalance and damage to the moving plate or threaded rod 201. Once the detector has moved to the appropriate height and passed through the opening 203, the worm gear 208 is secured by a shaft locking device fixed to the outer wall of the square cover 207 to prevent self-rotation. The detector can then be removed. The operation is simple and convenient, thus improving its practicality in actual use.

[0029] Arc-shaped rings 4 are fixedly installed on the front and rear sides of the top of the receiving plate 205. Arc-shaped straight plates 401 are rotatably connected at the center of the top of the two arc-shaped rings 4. Semi-circular connecting plates 402 are rotatably connected at the center of the top of the two arc-shaped straight plates 401. One connecting plate 402 has a groove 403 at its top, while the other connecting plate 402 has a clamping plate 404 that matches the groove 403 installed at its top. The clamping plate 404 is inserted into the inner side of the groove 403 and is threadedly connected to each other by positioning screws 405. When the detector is placed in the arc-shaped ring 4 on the receiving plate 205, the two arc-shaped straight plates 401 can be rotated first to change from a horizontal state to a horizontal state. Then, the two connecting plates 402 are rotated and the clamping plate 404 is inserted into the inner side of the groove 403. The positioning screw 405 is turned to fix it to the top of the detector (without contacting the top of the detector). This limits and fixes the detector while protecting it from falling solid debris such as gravel during the lifting process, thus improving its practicality.

[0030] A square plate 5 is fixedly installed on the front outer wall of the top plate 202. A support rod 501 is fixedly installed on the outer top surface of the square plate 5. A solar photovoltaic panel 502 is mounted on the top of the support rod 501 via a bracket. A control box 503 is fixedly installed on the top of the square plate 5. The solar photovoltaic panel 502 and the control box 503 are electrically connected to each other. The solar photovoltaic panel 502 can convert solar energy into electrical energy and store it in the battery in the control box 503 to power the circuit system of the device.

[0031] The working principle of this utility model is as follows: When the detector needs to be removed for maintenance, the drive motor 3 is started, which drives the two worm gears 208 to drive the two worm wheels 212 to rotate inside the square cover 207, drives the two rotating shafts 210 to drive the gears 213 to rotate, drives the two gear discs 206 to drive the two threaded rods 201 to rotate synchronously, and stably pushes the receiving plate 205 to lift the detector.

[0032] Meanwhile, after the detector is moved to the appropriate height and passes through the opening 203, the positioning screw 405 is turned and removed, and the connecting plate 402 and the arc-shaped straight plate 401 are pushed to rotate in sequence, and then the detector can be removed.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A coalbed methane fracturing monitoring device, characterized in that, It includes two sets of bases (1), and the top of the two sets of bases (1) are provided with a lifting component (2) that can achieve lifting and lowering; The lifting assembly (2) includes threaded rods (201) rotatably mounted at the center of the top of two sets of bases (1). The top of the two threaded rods (201) is provided with a top plate (202), and the center of the outer top surface of the top plate (202) is provided with a through-type opening (203). The outer peripheral surfaces of the two threaded rods (201) are threaded with sliders (204). A receiving plate (205) for placing a detector is fixedly installed between the two sliders (204). The top of the two threaded rods (201) rotates and extends to the outer top surface of the top plate (202) and is fixedly mounted with a gear plate (206). Square covers (207) are symmetrically installed on the front side of the outer top of the top plate (202). Worms (208) are rotatably installed on the inner walls of the left and right sides of the two square covers (207). One end of each of the two worms (208) extends to the outside of the square cover (207) and is fixed to each other by a connecting rod (209). A rotating shaft (210) is rotatably installed on the rear inner wall of the two square covers (207) above the worms (208). U-shaped covers (211) are fixedly installed on both sides of the top of the top plate (202) outside the gear plate (206). A worm wheel (212) is fixedly installed on one end of the rotating shaft (210), while the other end extends through the square cover (207) into the inside of the U-shaped cover (211), and a gear (213) is fixedly installed on its outer circumferential surface.

2. The coalbed methane fracturing monitoring device according to claim 1, characterized in that, A drive motor (3) is fixedly installed on the right side of the outer top surface of the top plate (202). One end of one of the worms (208) extends to the outside of the square cover (207) and is fixedly connected to the output end of the drive motor (3). The two worms (208) are meshed with the two worm wheels (212), and the two gears (213) are meshed with the gear disc (206).

3. The coalbed methane fracturing monitoring device according to claim 1, characterized in that, Guide rods (301) are fixedly installed on the top of the two sets of bases (1) and on both sides of the outside of the threaded rod (201). The top of the two pairs of guide rods (301) are fixedly connected to the top plate (202). At the same time, sliders (302) are slidably sleeved on the outside of the two pairs of guide rods (301). One end of the two pairs of sliders (302) is fixedly connected to the receiving plate (205).

4. The coalbed methane fracturing monitoring device according to claim 1, characterized in that, Arc-shaped rings (4) are fixedly installed on the front and rear sides of the top of the receiving plate (205). Arc-shaped straight plates (401) are rotatably connected at the center of the top of the two arc-shaped rings (4). Semi-circular connecting plates (402) are rotatably connected at the center of the top of the two arc-shaped straight plates (401).

5. A coalbed methane fracturing monitoring device according to claim 4, characterized in that, One of the connecting plates (402) has a groove (403) at its top, while the other connecting plate (402) has a clamping plate (404) that matches the groove (403) at its top. The clamping plate (404) is inserted into the inside of the groove (403) and is threadedly connected to each other by a positioning screw (405).

6. The coalbed methane fracturing monitoring device according to claim 1, characterized in that, A square plate (5) is fixedly installed on the front outer wall of the top plate (202). A support rod (501) is fixedly installed on the outer top surface of the square plate (5). A solar photovoltaic power generation panel (502) is installed on the top of the support rod (501) through a bracket. A control box (503) is fixedly installed on the top of the square plate (5). The solar photovoltaic power generation panel (502) and the control box (503) are electrically connected to each other.

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