Wind pressure detector of mine ventilator

Abstract

The utility model relates to the technical field of mining ventilation, and discloses a wind pressure detector of a mining ventilator, which comprises a mounting cylinder, a static pressure ring, a pressure sensor, a pressure sensor and a controller, and is characterized in that the inner wall of the mounting cylinder is fixedly provided with a static pressure ring for detection; the limiting body is fixedly arranged at the end part of the mounting cylinder and is used for fixing a wire harness connected with the static pressure ring; the threading assembly is arranged at the end of the mounting cylinder and used for leading out a wire harness connected with the static pressure ring, the threading assembly comprises a detachable threading pipe, the wire harness penetrates through the threading pipe to be led out, a cable connected with the static pressure ring is clamped into an opening of a limiting body through arrangement of the limiting body, and the limiting body can be made of a spring steel material; the limiting body can restrain the wire harness connected with the static pressure ring around the end of the installation cylinder to form an annular layout, neat arrangement of cables is guaranteed, the installation cylinder is installed and fixed by rotating the fixing screw and abutting against the outer wall of the air pipe through the fixing screw, and the fixing device has the advantage of being easy and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of mining ventilation, in particular to a wind pressure detector for a mine ventilator. Background Art

[0002] Mine ventilation is one of the important factors to ensure safe mining. In order to ensure the control of air supply parameters, it is necessary to monitor the wind pressure and air volume in the air duct.

[0003] The prior art discloses a counter-rotating local ventilator air volume and pressure detector for mines (Announcement No.: CN201583292U), which includes a counter-rotating local ventilator and a counter-rotating local ventilator diffuser, and a static pressure ring is provided outside the shell circumference at the front and rear ends of the counter-rotating local ventilator diffuser, and the inner cavity of the static pressure ring is connected to the inner cavity of the counter-rotating local ventilator diffuser; the two static pressure rings are also respectively connected to two pressure transmitters, and the two pressure transmitters are connected to the on-site monitoring device, and the on-site monitoring device is connected to the well monitoring system.

[0004] In the existing technology, the static pressure ring is installed on the outside of the pipeline, and the static pressure ring needs to be connected to the external monitoring equipment, and the connection method is through cable communication. The existing technology lacks the fixation and limitation of the static pressure ring connection harness, which makes the harness messy and not conducive to the subsequent inspection and maintenance, and there is a certain room for optimization.

[0005] Therefore, we propose a wind pressure detector for a mine ventilator. Utility Model Content

[0006] The utility model mainly solves the technical problem that the above-mentioned wires lack limit and are messy and unfavorable for maintenance, and provides a wind pressure detector for a mine ventilator.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution, a wind pressure detector for a mine ventilator, comprising:

[0008] The mounting tube forms an annular structure, and a static pressure ring for detection is fixedly mounted on the inner wall of the mounting tube;

[0009] A limiting body, fixedly arranged at the end of the mounting cylinder and used for fixing the wiring harness connected to the static pressure ring;

[0010] A fixing screw is threadably connected to the mounting barrel to support the position-limiting mounting barrel;

[0011] The threading assembly is arranged at the end of the installation cylinder and is used to lead out the wire harness connected to the static pressure ring. The threading assembly includes a detachable threading tube, and the wire harness is led out through the threading tube.

[0012] As a preferred embodiment of the present invention, at least three threaded holes are formed through the circumferential surface of the mounting cylinder, and the number of the fixing screws is equal to the number of the threaded holes, and the fixing screws are threadedly connected to the corresponding threaded holes.

[0013] As a preferred embodiment of the present invention, the limiting body includes an open circular ring and an ear extending toward one side of the limiting body, and the ear is integrally formed with the circular ring.

[0014] As a preferred embodiment of the present invention, the ears are provided with two, a guide channel with a gradually narrowing opening is formed between the two ears, the guide channel is opposite to the opening of the circular ring, the two ears are bent and extended in a direction away from the mounting tube, the circular ring is fixedly connected to the end of the mounting tube, and a number of identical limit bodies are equidistantly arranged at the end of the mounting tube.

[0015] As a preferred embodiment of the present invention, the threading assembly further comprises a side plate and a stop rod, the stop rod is fixedly connected to the side plate, the side plate is fixedly connected to the mounting tube, and the threading tube is threadedly connected to the side plate.

[0016] As a preferred embodiment of the present invention, the side plate forms a rectangular plate structure, the side plate is fixedly connected to the end face of the mounting tube, the side plate is provided with an internal threaded hole, and the outer wall of the threading tube is provided with threads.

[0017] As a preferred embodiment of the present invention, the stop rod forms a rod structure with an L-shaped cross section, the stop rod is fixedly connected to the bottom of the side plate, and the end of the wire threading tube can abut against the stop rod.

[0018] The utility model provides a wind pressure detector for a mine ventilator. It has the following beneficial effects:

[0019] 1. This wind pressure detector for a mining ventilator is configured to clamp the cable connected to the static pressure ring into the opening of the limiter by setting a limiter. The limiter can be made of spring steel, so that the limiter can constrain the wire harness connected to the static pressure ring to form a ring-shaped layout around the end of the mounting tube, thereby ensuring the neat arrangement of the cables. By rotating the fixing screw, the fixing screw contacts the outer wall of the air duct, thereby achieving installation and fixation of the mounting tube, and the device has the characteristic of easy installation.

[0020] 2. The wind pressure detector for a mine ventilator has a wiring harness passing through a wire conduit so that the wiring harness connected to the static pressure ring is constrained, which is more conducive to keeping the wiring harness neat and connected to an external monitoring device.

[0021] 3. This kind of wind pressure detector for mining ventilators, the mounting tube is formed by hingedly connecting two arc-shaped plates, the two arc-shaped plates are locked and closed by the same fixing screw to form a ring structure, the wall of the mounting tube should also be installed with a branch pipe, the branch pipe is threadedly connected to the interface of the air duct, the fixing screw can be installed on the inner ring of the mounting tube or on the outer ring of the mounting tube, the mounting tube can be installed on the inner wall or the outer wall of the air duct, the installation is convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0023] Figure 2 This is the second overall stereogram of the utility model;

[0024] Figure 3 This is a three-dimensional diagram of the limiting body of the utility model;

[0025] Figure 4 This is a three-dimensional diagram of the threading tube and side plate of the utility model;

[0026] Figure 5 This is a three-dimensional diagram of the installation tube of the utility model.

[0027] Legend: 10. Mounting tube; 11. Static pressure ring; 12. Limiting body; 13. Fixing screw; 20. Threading tube; 21. Side plate; 22. Stop rod. DETAILED DESCRIPTION

[0028] A wind pressure detector for a mine ventilator, such as Figure 1 and Figure 2 As shown, including:

[0029] The installation tube 10 forms an annular structure, and a static pressure ring 11 for detection is fixedly installed on the inner wall of the installation tube 10. The static pressure ring 11 needs to be connected to the electrical signal of the pressure transmitter, and the pressure transmitter is connected to an external monitoring device. The monitoring device includes a signal amplifier, an analog-to-digital converter connected to the output end of the signal amplifier, the output end of the analog-to-digital converter is connected to the single-chip microcomputer, and the output end of the single-chip microcomputer is connected to a frequency output device, a liquid crystal display and an air stop alarm device; the frequency output device is connected to the uphole monitoring system, and the pressure transmitter converts the pressure signal from the static pressure ring 11 into an analog signal and transmits it to the analog-to-digital conversion module. The analog-to-digital conversion module converts the analog signal from the pressure transmitter into a digital signal and transmits it to the single-chip microcomputer without distortion. The single-chip microcomputer converts the electrical signal from the analog-to-digital conversion module into a visible air volume and pressure value through numerical calculation, and converts it into a corresponding frequency signal. The air volume and air pressure values ​​are sent to the uphole monitoring system for detection through the downhole substation. This is an existing well-known technology and will not be described in detail here;

[0030] like Figure 2 and Figure 3 As shown, the limiting body 12 is fixedly arranged at the end of the mounting tube 10 for fixing the wiring harness connected to the static pressure ring 11. The limiting body 12 includes an open circular ring and an ear extending toward one side of the limiting body 12. The ear and the circular ring are integrally formed, and the ear has two ears. A guide channel with a gradually narrowing opening is formed between the two ears. The guide channel is opposite to the opening of the circular ring. The two ears bend and extend in a direction away from the mounting tube 10. The circular ring is fixedly connected to the end of the mounting tube 10. A number of identical limiting bodies 12 are equidistantly arranged at the end of the mounting tube 10. By setting the limiting body 12, the cable connected to the static pressure ring 11 is clamped into the opening of the limiting body 12. The limiting body 12 can be made of spring steel, and then the limiting body 12 can constrain the wiring harness connected to the static pressure ring 11 to form a ring-shaped layout around the end of the mounting tube 10, thereby ensuring the neat arrangement of the cables.

[0031] like Figure 1 and Figure 2 As shown, the fixing screw 13 is threadedly connected to the mounting cylinder 10 to support and limit the mounting cylinder 10. The circumferential surface of the mounting cylinder 10 is penetrated by at least three threaded holes, and the number of the fixing screws 13 is equal to the number of the threaded holes. The fixing screws 13 are threadedly connected to the corresponding threaded holes. By rotating the fixing screw 13, the fixing screw 13 contacts the outer wall of the air duct to achieve the installation and fixation of the mounting cylinder 10, which has the characteristics of simple installation.

[0032] like Figure 5 As shown, in order to facilitate the installation of the mounting cylinder 10, the mounting cylinder 10 is formed by hingedly connecting two arc-shaped plates. The two arc-shaped plates are locked and closed by the same fixing screw 13 to form an annular structure. The wall surface of the mounting cylinder 10 should also be installed with a branch pipe, which is threadedly connected to the interface of the air duct. The fixing screw 13 can be installed on the inner ring of the mounting cylinder 10 or on the outer ring of the mounting cylinder 10. The mounting cylinder 10 can be installed on the inner wall or the outer wall of the air duct. The branch pipe extends to connect with the static pressure ring 11 to detect the air volume and air pressure in the air duct. No further description is given here.

[0033] like Figure 4As shown, a threading assembly is arranged at the end of the mounting tube 10 for leading out the wiring harness connected to the static pressure ring 11. The threading assembly includes a detachable threading tube 20, and the wiring harness is led out through the threading tube 20. The threading assembly also includes a side plate 21 and a stop rod 22. The stop rod 22 is fixedly connected to the side plate 21, and the side plate 21 is fixedly connected to the mounting tube 10. The threading tube 20 is threadedly connected to the side plate 21. The side plate 21 forms a rectangular plate structure. The side plate 21 is fixedly connected to the end face of the mounting tube 10. The side plate 21 is provided with an internal threaded hole. The outer wall of the threading tube 20 is provided with a thread. The stop rod 22 forms a rod structure with an L-shaped cross-section. The stop rod 22 is fixedly connected to the bottom of the side plate 21. The end of the threading tube 20 can resist the stop rod 22. As a supplement to the above scheme, by passing the wiring harness through the threading tube 20, the wiring harness connected to the static pressure ring 11 is constrained, which is more conducive to keeping the wiring harness neat and connected to external monitoring equipment.

[0034] The working principle of the present invention: the mounting cylinder 10 is formed by hingedly connecting two arc-shaped plates, and the two arc-shaped plates are locked and closed by the same fixing screw 13 to form an annular structure. The wall of the mounting cylinder 10 should also be installed with a branch pipe, and the interface of the branch pipe and the air duct is threadedly connected. The fixing screw 13 can be installed on the inner ring of the mounting cylinder 10 or on the outer ring of the mounting cylinder 10. Rotate the fixing screw 13 so that it contacts the air duct to achieve the installation and fixation of the mounting cylinder 10, and insert the cable connected to the static pressure ring 11 into the opening of the limiter 12. The limiter 12 can be made of spring steel, and then the limiter 12 can constrain the wiring harness connected to the static pressure ring 11 around the end of the mounting cylinder 10 to form an annular layout, and pass the wiring harness through the wire tube 20, so that the wiring harness connected to the static pressure ring 11 is constrained, which is more conducive to keeping the wiring harness neatly arranged.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A wind pressure detector for a mine ventilator, characterized in that: include: A mounting cylinder (10) is formed into an annular structure, and a static pressure ring (11) for detection is fixedly mounted on the inner wall of the mounting cylinder (10); A limiting body (12) is fixedly arranged at the end of the mounting cylinder (10) and is used to fix the wiring harness connected to the static pressure ring (11); A fixing screw (13) is threadedly connected to the mounting cylinder (10) for supporting the position-limiting mounting cylinder (10); The threading assembly is arranged at the end of the installation cylinder (10) and is used to lead out the wire harness connected to the static pressure ring (11). The threading assembly comprises a detachable threading tube (20), and the wire harness passes through the threading tube (20) and is led out.

2. The wind pressure detector for a mine ventilator according to claim 1, characterized in that: At least three threaded holes are formed through the circumferential surface of the installation cylinder (10), and the number of the fixing screws (13) is equal to the number of the threaded holes, and the fixing screws (13) are threadedly connected to the corresponding threaded holes.

3. The wind pressure detector for a mine ventilator according to claim 1, characterized in that: The limiting body (12) comprises an open circular ring and an ear portion extending toward one side of the limiting body (12), and the ear portion and the circular ring are integrally formed.

4. The wind pressure detector for a mine ventilator according to claim 3, characterized in that: The ear parts have two, and a guide channel with a gradually narrowing opening is formed between the two ear parts. The guide channel is opposite to the opening of the circular ring. The two ear parts bend and extend in a direction away from the installation cylinder (10). The circular ring is fixedly connected to the end of the installation cylinder (10). A plurality of identical limiting bodies (12) are equidistantly arranged at the end of the installation cylinder (10).

5. The wind pressure detector for a mine ventilator according to claim 1, characterized in that: The threading assembly further comprises a side plate (21) and a stop rod (22), wherein the stop rod (22) is fixedly connected to the side plate (21), the side plate (21) is fixedly connected to the mounting tube (10), and the threading tube (20) is threadedly connected to the side plate (21).

6. The wind pressure detector for a mine ventilator according to claim 5, characterized in that: The side plate (21) forms a rectangular plate structure, and the side plate (21) is fixedly connected to the end surface of the mounting tube (10). The side plate (21) is provided with an internal threaded hole, and the outer wall of the threading tube (20) is provided with a thread.

7. The wind pressure detector for a mine ventilator according to claim 5, characterized in that: The stopping rod (22) forms a rod structure with an L-shaped cross section. The stopping rod (22) is fixedly connected to the bottom of the side plate (21), and the end of the threading tube (20) can abut against the stopping rod (22).

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