A top plate with a clear blowing structure for a press monitoring device

Abstract

The utility model discloses a roof comes pressure monitoring equipment with clear blowing structure relates to the pressure monitoring technical field, including roof comes pressure monitoring equipment, the top of roof comes pressure monitoring equipment is provided with clear blowing mechanism for realizing the pressure sensor on the roof of roof comes pressure monitoring equipment top to clear blowing, including in clear blowing mechanism: air -blowing unit and rotating unit, air -blowing unit sets up in the top of roof comes pressure monitoring equipment, through being provided with clear blowing mechanism, wherein the airflow of micro -pump in air -blowing unit produces, emits through connecting pipe, fixed pipe and shower nozzle, can effectively clear blowing to the pressure sensor on the roof of roof comes pressure monitoring equipment top. The surface of shower nozzle is equipped with a plurality of through -holes, realizes arc circumference air -jet, evenly removes sensor surface dust, avoids the stress distribution uneven and poor heat dissipation caused by dust cover, thereby significantly reduces sensor zero point drift and sensitivity drop, promotes the accuracy and stability of monitoring data.

Description

Technical Field

[0001] This utility model relates to the field of pressure monitoring technology, specifically to a top plate pressure monitoring device with a cleaning structure. Background Technology

[0002] Roof pressure monitoring equipment is a core piece of equipment for ensuring safe production in mining operations. Its core function is to monitor, warn, and analyze the changes in pressure, displacement, and stress of the roof during the mining process in real time, thereby preventing accidents such as roof collapse, rock bursts, and roof falls, and ensuring personnel safety and equipment stability.

[0003] According to the patent titled "A Remote Visual Monitoring System for Mine Pressure Manifestation in a 1000-meter Vertical Deep Mine" (Patent Publication No.: CN215830557U, Patent Publication Date: 2022-02-15), the system includes a mine-use wireless multi-functional monitoring device, monitoring substations, a roof separation meter, a monitoring master station, and a ground computer. The mine-use wireless multi-functional monitoring device monitors pressure changes in hydraulic supports and transmits the data to the monitoring substations. The monitoring substations record the initial support force and working resistance of the left and right columns of the hydraulic supports and transmit the data to the monitoring master station. The roof separation meter records separation values ​​at different locations and transmits the data to the monitoring master station. The monitoring master station is responsible for packaging all underground data and transmitting it to the surface for analysis and processing by the ground computer. This system can monitor roof pressure changes in the working face and upper and lower intake airways, understand pressure manifestation patterns, predict roof pressure in deep mining operations, optimize coal mining processes, and provide reliable technical parameters for the rational selection of supports and coal mining machinery.

[0004] Based on the aforementioned existing technology, the current top plate pressure monitoring equipment with a cleaning structure still has the following problems: for strain gauge pressure sensors, dust covering will change the stress distribution and heat dissipation characteristics of the structure, resulting in zero-point drift, decreased sensitivity, and inaccurate and unstable output signals. Therefore, this utility model provides a top plate pressure monitoring equipment with a cleaning structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a top plate pressure monitoring device with a dust-blowing structure, which solves the following problems of existing top plate pressure monitoring devices with dust-blowing structures: for strain gauge pressure sensors, dust covering will change the stress distribution and heat dissipation characteristics of the structure, resulting in zero-point drift, decreased sensitivity, and inaccurate and unstable output signals.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a top plate pressure monitoring device with a cleaning structure, comprising a top plate pressure monitoring device, wherein a cleaning mechanism is provided above the top plate pressure monitoring device for cleaning the pressure sensor on the top of the top plate pressure monitoring device, and the cleaning mechanism includes:

[0007] A blowing unit, located above the pressure monitoring device on the top plate, includes a fixed plate. A miniature air pump is fixedly installed on the top of the fixed plate, and a connecting pipe is fixedly installed at the output end of the miniature air pump. A fixed pipe is fixedly installed inside the fixed plate, and a nozzle is fixedly installed at the bottom end of the fixed pipe. The end of the connecting pipe away from the miniature air pump is fixedly connected to the top of the fixed pipe. Airflow is generated by the miniature air pump, and the airflow is sprayed out through the connecting pipe, the fixed pipe, and the nozzle to clean the pressure sensor on the top of the pressure monitoring device on the top plate.

[0008] A rotating unit is located below the blower unit and is used to fold the blower unit.

[0009] Preferably, the surface of the nozzle has several through holes to allow airflow to be ejected in an arc-shaped circumference from the pressure sensor at the top of the pressure monitoring device on the top plate.

[0010] Preferably, a top cover is fixedly installed on the top of the fixing plate to protect the structure above the fixing plate.

[0011] Preferably, the rotating unit includes a fixing ring fixedly installed on the surface of the lifting rod of the pressure monitoring device on the top plate, a connecting seat fixedly installed on one side of the fixing ring, and a rotating rod rotatably installed inside the connecting seat via a shaft column, and a fixing plate fixedly installed on one side of the rotating rod.

[0012] Preferably, the front end of the shaft extends through the connecting seat and is fixedly mounted with a worm gear. A micro motor is fixedly mounted on the front side of the connecting seat, and a worm is fixedly mounted on the output end of the micro motor. The worm and the worm gear are meshed together. A support seat is fixedly mounted on the front side of the connecting seat, and one end of the worm rotates inside the support seat. A protective cover is fixedly mounted on the front side of the connecting seat to protect the structure on the front side of the connecting seat.

[0013] Preferably, a semi-circular groove is provided on the rear side of the connecting seat, and a limiting post is fixedly installed on the rear side of the rotating rod. The limiting post slides inside the semi-circular groove to limit the rotation position of the rotating rod.

[0014] This invention provides a top plate pressure monitoring device with a purging structure. Compared with the prior art, it has the following advantages:

[0015] 1. This top-plate pressure monitoring device with a cleaning structure incorporates a cleaning mechanism. A miniature air pump within the blowing unit generates airflow, which is then ejected through a connecting pipe, a fixed pipe, and a nozzle to effectively clean the pressure sensor on the top of the device. The nozzle surface has multiple through holes, enabling arc-shaped circumferential airflow to evenly remove dust from the sensor surface. This prevents uneven stress distribution and poor heat dissipation caused by dust accumulation, significantly reducing sensor zero-point drift and sensitivity degradation, and improving the accuracy and stability of the monitoring data.

[0016] 2. This top plate pressure monitoring device with a cleaning and blowing structure features a rotating unit. A micro motor drives a worm gear and worm wheel to rotate the rotating rod, enabling the folding and unfolding of the blowing unit. A limiting post slides within a semi-circular groove, ensuring controllable rotation. This structure facilitates storage when the equipment is not in operation, reducing space occupation, protecting the cleaning and blowing mechanism from the downhole environment, extending equipment lifespan, and improving practicality and adaptability. Attached Figure Description

[0017] Figure 1 This is a right-side perspective view of the structure of this utility model;

[0018] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional structural view of the cleaning mechanism of this utility model, disassembled.

[0020] Figure 4 This is a three-dimensional structural view of the cleaning mechanism of this utility model after disassembly.

[0021] In the diagram: 1. Top plate pressure monitoring equipment; 2. Cleaning mechanism; 21. Blowing unit; 211. Fixing plate; 212. Miniature air pump; 213. Connecting pipe; 214. Fixing pipe; 215. Nozzle; 216. Top cover; 22. Rotating unit; 221. Fixing ring; 222. Connecting seat; 223. Shaft column; 224. Rotating rod; 225. Worm gear; 226. Miniature motor; 227. Worm; 228. Support seat; 229. Protective cover; 2210. Semicircular groove; 2211. Limiting post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] A pressure monitoring device for a roof plate with a cleaning structure includes a pressure monitoring device 1 and a cleaning mechanism 2 disposed above the pressure monitoring device 1 for cleaning the pressure sensor on the top of the pressure monitoring device 1. The cleaning mechanism 2 includes:

[0025] The blowing unit 21 is located above the pressure monitoring device 1 on the top plate. It includes a fixed plate 211, a micro air pump 212 is fixedly installed on the top of the fixed plate 211, and a connecting pipe 213 is fixedly installed at the output end of the micro air pump 212. A fixed pipe 214 is fixedly installed inside the fixed plate 211, and a nozzle 215 is fixedly installed at the bottom end of the fixed pipe 214. The end of the connecting pipe 213 away from the micro air pump 212 is fixedly connected to the top of the fixed pipe 214. The airflow generated by the micro air pump 212 blows out through the connecting pipe 213, the fixed pipe 214 and the nozzle 215 to clean the pressure sensor on the top of the pressure monitoring device 1.

[0026] The rotating unit 22 is located below the blowing unit 21 and is used to fold the blowing unit 21.

[0027] The 212 miniature air pump is a brushless DC miniature air pump, model WKP-30. Its working principle is to generate airflow by driving the blades to rotate through a motor. It has low noise, long life and explosion-proof characteristics, and is suitable for underground mining environments.

[0028] In this embodiment, the surface of the nozzle 215 is provided with several through holes to realize the arc-shaped circumference of the pressure sensor at the top of the pressure monitoring device 1.

[0029] The nozzle 215 has several through holes on its surface, which can realize the arc-shaped circumferential airflow to evenly cover the surface of the pressure sensor on the top plate of the pressure monitoring device 1, effectively remove dust, avoid excessively strong or weak local airflow, and improve the cleaning effect and the working stability of the sensor.

[0030] In this embodiment, a top cover 216 is fixedly installed on the top of the fixing plate 211 to protect the structure above the fixing plate 211.

[0031] The top cover 216 is installed on the top of the fixed plate 211, which can protect the structure above, such as the micro air pump 212, from dust and impact, reduce the damage of falling rocks and dust to the cleaning mechanism 2, and extend the service life of the equipment.

[0032] In this embodiment, the rotating unit 22 includes a fixing ring 221 fixedly installed on the surface of the lifting rod of the pressure monitoring device 1 on the top plate. A connecting seat 222 is fixedly installed on one side of the fixing ring 221, and a rotating rod 224 is rotatably installed inside the connecting seat 222 via a shaft 223. A fixing plate 211 is fixedly installed on one side of the rotating rod 224.

[0033] The combination of the fixing ring 221, connecting seat 222, shaft column 223 and rotating rod 224 enables the folding function of the blowing unit 21, making the equipment more compact during transportation or when not in use, and improving the flexibility and safety of on-site layout.

[0034] In this embodiment, the front end of the shaft 223 extends through the connecting seat 222 and is fixedly mounted with a worm gear 225. A micro motor 226 is fixedly mounted on the front side of the connecting seat 222, and a worm 227 is fixedly mounted on the output end of the micro motor 226. The worm 227 and the worm gear 225 are meshed together. A support seat 228 is fixedly mounted on the front side of the connecting seat 222, and one end of the worm 227 rotates inside the support seat 228. A protective cover 229 is fixedly mounted on the front side of the connecting seat 222 to protect the structure on the front side of the connecting seat 222.

[0035] The micro motor 226 can be an explosion-proof stepper motor, model 57BYG. It controls the rotation angle through pulse signals, and works with the worm gear 225 and worm 227 to achieve precise angle adjustment and self-locking function, ensuring accurate positioning of the rotating rod 224. The meshing transmission of the worm gear 225 and worm 227, together with the micro motor 226, achieves precise rotation and self-locking of the rotating rod 224, preventing positional deviation due to vibration during the cleaning process, and ensuring that the nozzle 215 is always aligned with the sensor.

[0036] In this embodiment, a semi-circular groove 2210 is provided on the rear side of the connecting seat 222, and a limiting post 2211 is fixedly installed on the rear side of the rotating rod 224. The limiting post 2211 slides inside the semi-circular groove 2210 to limit the rotation position of the rotating rod 224.

[0037] The limiting post 2211 slides within the semi-circular groove 2210, which can limit the rotation angle of the rotating rod 224, avoid excessive rotation causing structural damage or airflow direction deviation, and improve the reliability and safety of the mechanism operation.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] During operation, firstly, the micro motor 226 drives the worm gear 227 to rotate, the worm gear 227 drives the worm wheel 225 to rotate, and drives the shaft column 223 to drive the rotating rod 224 to rotate. During the rotation of the rotating rod 224, the limiting post 2211 slides inside the semi-circular groove 2210.

[0040] Then, when the rotating rod 224 is rotated to the vertical position, the micro air pump 212 operates to generate airflow. The airflow enters the fixed pipe 214 through the connecting pipe 213 and is sprayed out through the nozzle 215 to clean the surface of the pressure sensor on the top of the pressure monitoring device 1.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roof pressure monitoring device with a cleaning structure, comprising a roof pressure monitoring device (1), characterized in that: A cleaning mechanism (2) is provided above the top plate pressure monitoring device (1) to clean the pressure sensor on the top of the top plate pressure monitoring device (1). The cleaning mechanism (2) includes: A blowing unit (21) is set above the pressure monitoring device (1) on the top plate. It includes a fixed plate (211). A micro air pump (212) is fixedly installed on the top of the fixed plate (211), and a connecting pipe (213) is fixedly installed at the output end of the micro air pump (212). A fixed pipe (214) is fixedly installed inside the fixed plate (211), and a nozzle (215) is fixedly installed at the bottom end of the fixed pipe (214). The end of the connecting pipe (213) away from the micro air pump (212) is fixedly connected to the top of the fixed pipe (214). Airflow is generated by the micro air pump (212), and the airflow is sprayed out through the connecting pipe (213), the fixed pipe (214) and the nozzle (215) to clean the pressure sensor on the top of the pressure monitoring device (1). A rotating unit (22) is located below the blowing unit (21) and is used to fold the blowing unit (21).

2. The top plate pressure monitoring device with a cleaning structure according to claim 1, characterized in that: The nozzle (215) has several through holes on its surface, which enable the top pressure sensor of the pressure monitoring device (1) on the top plate to spray air in an arc-shaped circumference.

3. The top plate pressure monitoring device with a cleaning structure according to claim 1, characterized in that: A top cover (216) is fixedly installed on the top of the fixing plate (211) to protect the structure above the fixing plate (211).

4. The top plate pressure monitoring device with a cleaning structure according to claim 1, characterized in that: The rotating unit (22) includes a fixing ring (221) fixedly installed on the surface of the lifting rod of the pressure monitoring device (1) on the top plate. A connecting seat (222) is fixedly installed on one side of the fixing ring (221), and a rotating rod (224) is rotatably installed inside the connecting seat (222) through a shaft column (223). A fixing plate (211) is fixedly installed on one side of the rotating rod (224).

5. A top plate pressure monitoring device with a cleaning structure according to claim 4, characterized in that: The front end of the shaft (223) extends through the connecting seat (222) and is fixedly mounted with a worm gear (225). A micro motor (226) is fixedly mounted on the front side of the connecting seat (222), and a worm (227) is fixedly mounted on the output end of the micro motor (226). The worm (227) and the worm gear (225) are meshed together. A support seat (228) is fixedly mounted on the front side of the connecting seat (222), and one end of the worm (227) rotates inside the support seat (228). A protective cover (229) is fixedly mounted on the front side of the connecting seat (222) to protect the structure on the front side of the connecting seat (222).

6. A top plate pressure monitoring device with a cleaning structure according to claim 4, characterized in that: The connecting seat (222) has a semi-circular groove (2210) on its rear side, and a limiting post (2211) is fixedly installed on the rear side of the rotating rod (224). The limiting post (2211) slides inside the semi-circular groove (2210) to limit the rotation position of the rotating rod (224).

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