CN117346948A - Pressure monitoring device for filling pipeline - Google Patents

Abstract

The invention provides a filling pipeline pressure monitoring device, which comprises: the monitoring assembly comprises a mounting frame, a transmission member and a monitoring member for monitoring pressure, wherein the mounting frame is provided with a mounting port and a first mounting part connected with the filling pipeline, the transmission member is vertically and movably arranged in the mounting frame, the monitoring member is arranged in the mounting frame, and the transmission member is provided with a monitoring position in contact with the monitoring member and a separation position far away from the monitoring member; the elastic sealing piece is arranged at the mounting opening, and the elastic sealing piece can deform under pressure to be in driving fit with the transmission piece, so that the transmission piece moves between the monitoring position and the separating position. Through the technical scheme that this application provided, the fragile problem of pressure detection component among the correlation technique can be solved.

Description

Pressure monitoring device for filling pipeline

Technical Field

The invention relates to the technical field of mine monitoring equipment, in particular to a filling pipeline pressure monitoring device.

Background

The underground mine filling and conveying pipeline is an important component part of a complete filling system, the working condition of the high-concentration filling slurry pipeline conveying process is extremely complex, and safety production accidents such as pipe blocking and pipe bursting are easy to cause, so that the safe and stable operation of the filling system is influenced. Therefore, the pressure monitoring of the filling pipeline is an important technical means for effectively solving the safety risk of pipeline transportation, and the pressure of the filling pipeline is a key core parameter for reflecting the running state of a pipeline transportation system. The pipeline pressure of different positions of the filling pipeline is mastered by effectively monitoring the along-line pressure of the filling pipeline, so that the pipeline pressure is used for optimizing the arrangement of the filling pipeline and evaluating the pipeline conveying risk of a critical area, and an important support is provided for mine safety production.

In the related art, the pipeline pressure monitoring method adopts two measurement methods, namely an interventional method and a non-interventional method. Non-invasive measurement methods such as ultrasound. The non-intervention type pipeline pressure measurement mode is to clamp an ultrasonic transducer on the outer wall of a pipeline, namely, ultrasonic waves are adopted as a pipeline pressure test means, but sound production equipment such as underground electric locomotives, automobiles and large-scale mining equipment affect the monitoring effect. The method for measuring the pressure of the intervention type pipeline is to install a pressure sensor at a measured point to realize the monitoring of the pressure of the pipeline at the measured point, such as a mechanical type, a pressure sensitive element type and the like. The current common pipeline pressure measurement method is to install a flat film type or capacitive pressure sensor at a measured point. The installation mode is that an opening is formed in the upper part of a filling pipeline, a section of short connecting pipe is welded, the diameter of the short connecting pipe is matched with that of a pressure sensor, and the other end of an iron pipe is connected with the pressure sensor through a welding flange. The pressure of the monitoring point is generally obtained by directly reading the display value of the gauge head or transmitting the display value to a central control room through a network.

However, since the above-mentioned scheme requires that the pressure sensing element of the pressure sensor is in direct contact with the filler slurry, the filler slurry abrades the pressure sensing element at a high speed, which is easy to abrade, resulting in inaccurate measurement data at a later stage, and even scrapping of the pressure sensor.

Disclosure of Invention

The invention provides a filling pipeline pressure monitoring device which is used for solving the problem that a pressure detection element in the related technology is easy to damage.

The invention provides a filling pipeline pressure monitoring device, which comprises: the monitoring assembly comprises a mounting frame, a transmission member and a monitoring member for monitoring pressure, wherein the mounting frame is provided with a mounting port and a first mounting part connected with the filling pipeline, the transmission member is vertically and movably arranged in the mounting frame, the monitoring member is arranged in the mounting frame, and the transmission member is provided with a monitoring position in contact with the monitoring member and a separation position far away from the monitoring member; the elastic sealing piece is arranged at the mounting opening, and the elastic sealing piece can deform under pressure to be in driving fit with the transmission piece, so that the transmission piece moves between the monitoring position and the separating position.

Further, the elastic sealing element comprises a protruding part which protrudes downwards and can deform and a second installation part which is connected with the installation frame and/or the filling pipeline, the protruding part is arranged at the installation opening, and the protruding part is abutted against the transmission part.

Further, the bulge includes roof, annular bounding wall and arc, and the upper surface and the driving medium of roof laminate mutually, and the outer border of roof is connected with the upper end of annular bounding wall, and the lower extreme and the arc of annular bounding wall are connected, and the arc downward bulge sets up.

Further, the bulge still includes the baffle, and the baffle is along transversely extending and be connected with the inner wall of annular bounding wall, and the baffle separates the bulge into first air chamber and second air chamber, is provided with the intercommunicating pore on the baffle, and first air chamber and second air chamber pass through the intercommunicating pore intercommunication.

Further, the bulge still includes a plurality of biography power boards, and a plurality of biography power boards set up along horizontal interval and along vertical extension, and the both ends of biography power board are connected with roof and baffle respectively, and the both sides of every biography power board all are connected with annular bounding wall, and the intercommunicating pore is a plurality of, all is provided with the intercommunicating pore between two adjacent biography power boards.

Further, be provided with the flange on the filling pipe, the outer wall of annular bounding wall is laminated mutually with the inner wall of flange, and the arc downwards protrudes in the flange and extends to in the filling pipe, first installation department and flange joint, second installation department is including setting up the annular arch in the periphery of roof, and annular arch presss from both sides to establish between first installation department and flange.

Further, the monitoring assembly further comprises an adjusting spring, the adjusting spring is sleeved on the periphery of the transmission piece, and two ends of the adjusting spring are respectively abutted to the transmission piece and the mounting frame.

Further, the monitoring assembly further comprises a sleeve, a pressing plate extending transversely is arranged in the mounting frame and connected with the mounting frame, the sleeve is sleeved on the transmission member in an adjustable mode along the vertical position, the transmission member penetrates through the pressing plate, and the sleeve is in butt joint with the adjusting spring through the pressing plate.

Further, the monitoring assembly further comprises a worm wheel and a worm which are meshed, the worm penetrates through the mounting frame in the transverse direction, the swing axis of the worm wheel extends in the vertical direction, the worm wheel is provided with internal threads, the sleeve is provided with external threads, and the sleeve penetrates through the worm wheel and is in threaded connection with the worm wheel.

Further, the mounting frame comprises a shell and a frame body arranged in the shell, the frame body is positioned above the pressing plate, the outer edge of the frame body is connected with the mounting frame, and the worm wheel is arranged on the frame body in a swinging manner; the driving medium includes drive plate and transfer line, and the transfer line sets up along horizontal setting and is connected with the lower extreme of transfer line, and the upper end of transfer line corresponds the setting of elastic seal spare, and adjusting spring and sleeve all overlap and establish in the periphery of transfer line, and the clamp plate is worn to locate by the transfer line, and drive plate and transfer line all can follow vertical removal.

By applying the technical scheme of the invention, the pressure monitoring device for the filling pipeline comprises the monitoring assembly and the elastic sealing element, when slurry flows through the filling pipeline, the elastic sealing element can be extruded by the slurry and deform, and the deformed elastic sealing element can be in driving fit with the transmission element, so that the transmission element vertically moves and moves from a separation position far away from the monitoring element to a monitoring position contacted with the monitoring element, and at the moment, the slurry pressure in the filling pipeline can be judged to reach a threshold value. Because the elastic sealing piece cover is arranged at the mounting opening of the mounting rack, the elastic sealing piece can isolate the slurry from the monitoring piece, so that the slurry is prevented from wearing the monitoring piece or damaging the monitoring piece.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a cross-sectional view of a filling pipe pressure monitoring device provided according to an embodiment of the present invention.

Wherein the above figures include the following reference numerals:

10. a monitoring component; 11. a mounting frame; 111. a first mounting portion; 112. a pressing plate; 113. a housing; 114. a frame body; 12. a transmission member; 121. a drive plate; 122. a transmission rod; 13. a monitoring member; 14. an adjusting spring; 15. a sleeve; 16. a worm wheel; 17. a worm;

20. an elastic seal; 21. a protruding portion; 211. a top plate; 212. an annular coaming; 213. an arc-shaped plate; 214. a partition plate; 215. a communication hole; 216. a force transfer plate; 22. a second mounting portion;

30. and (3) a flange.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1, the embodiment of the present invention provides a filling pipe pressure monitoring device, the filling pipe pressure monitoring device includes a monitoring assembly 10 and an elastic sealing member 20, the monitoring assembly 10 includes a mounting frame 11, a transmission member 12 and a monitoring member 13 for monitoring pressure, the mounting frame 11 has a mounting opening and a first mounting portion 111 connected with the filling pipe, the transmission member 12 is movably disposed in the mounting frame 11 along a vertical direction, the monitoring member 13 is disposed in the mounting frame 11, and the transmission member 12 has a monitoring position contacting the monitoring member 13 and a separation position away from the monitoring member 13; the elastic sealing element 20 is covered at the mounting opening, and the elastic sealing element 20 is capable of being deformed to be in driving fit with the transmission element 12, so that the transmission element 12 moves between the monitoring position and the separating position.

By applying the technical scheme of the invention, the pressure monitoring device for the filling pipeline comprises the monitoring assembly 10 and the elastic sealing element 20, when slurry flows through the filling pipeline, the elastic sealing element 20 can be extruded by the slurry and deform, the deformed elastic sealing element 20 can be in driving fit with the transmission element 12, so that the transmission element 12 moves vertically and moves from a separation position far away from the monitoring element 13 to a monitoring position contacted with the monitoring element 13, and at the moment, the slurry pressure in the filling pipeline can be judged to reach a threshold value. Because the elastic sealing element 20 covers the mounting opening of the mounting frame 11, the elastic sealing element 20 can isolate the slurry from the monitoring element 13, so that the slurry is prevented from wearing the monitoring element 13 or damaging the monitoring element 13.

In this embodiment, the monitoring member 13 is a contact switch, the contact switch is connected with the upper computer, and after the transmission member 12 contacts with the contact switch, a contact signal is transmitted to the upper computer, so that it can be determined that the slurry pressure in the filling pipe reaches a threshold value.

The elastic sealing element 20 may be disposed in the filling pipe or between the mounting frame 11 and the filling pipe, as long as the slurry and the monitoring element 13 can be isolated.

In other embodiments, the monitoring element 13 may also be provided as a pressure gauge.

As shown in fig. 1, the elastic sealing member 20 includes a protruding portion 21 protruding downward and capable of being deformed, and a second mounting portion 22 connected to the mounting bracket 11 or the filling pipe, the protruding portion 21 being disposed at the mounting opening, the protruding portion 21 being abutted against the transmission member 12. By providing the elastic seal 20 as the projection 21 and the second mounting portion 22, the mounting of the projection 21 can be facilitated by the second mounting portion 22.

In other embodiments, the resilient seal 20 may also be provided as a plate-like structure.

In this embodiment, the elastic seal 20 is made of rubber.

If the slurry in the filling pipe is not cleaned, the slurry easily adheres to the inner wall of the filling pipe and the protruding portion 21, and the slurry adheres to the outer wall of the protruding portion 21 after solidification. After the slurry is introduced next time, the protrusion 21 can deform, and at this time, the protrusion 21 cannot support the solidified slurry, so that the solidified slurry is broken and disintegrated, and the pressure of the slurry can directly act on the protrusion 21.

As shown in fig. 1, the protruding portion 21 includes a top plate 211, an annular surrounding plate 212 and an arc plate 213, the upper surface of the top plate 211 is attached to the transmission member 12, the outer edge of the top plate 211 is connected to the upper end of the annular surrounding plate 212, the lower end of the annular surrounding plate 212 is connected to the arc plate 213, and the arc plate 213 protrudes downward. The protruding part 21 with the structure has the advantages of simple structure and convenient processing.

Wherein the upper surface of the top plate 211 is provided with an annular groove, by means of which deformation of the top plate 211 can be facilitated for transmitting pressure to the transmission member 12.

In this embodiment, the slurry can directly contact the arc plate 213 and deform the arc plate 213, and the arc plate 213 can be attached to the top plate 211 to transfer the pressure of the slurry to the top plate 211.

When slurry does not flow through the filling pipe, the arcuate plate 213 is projected into the pipe by its own elastic force. When slurry flows through the filling pipe, the slurry compresses the arc plate 213, so that the arc plate 213 is retracted and is flush with the inner wall of the pipe and is in contact with the partition 214, and the normal flow of the slurry is not affected.

As shown in fig. 1, the protruding portion 21 further includes a partition 214, the partition 214 extending in a lateral direction and being connected to an inner wall of the annular shroud 212, the partition 214 dividing the protruding portion 21 into a first air chamber and a second air chamber, the partition 214 being provided with a communication hole 215, the first air chamber and the second air chamber being communicated through the communication hole 215. With the above structure, the first air chamber and the second air chamber can be communicated with the communication hole 215, thereby facilitating deformation of the arc plate 213.

As shown in fig. 1, the protruding portion 21 further includes a plurality of force transfer plates 216, wherein the plurality of force transfer plates 216 are disposed at intervals in a lateral direction and extend vertically, two ends of each force transfer plate 216 are respectively connected with the top plate 211 and the partition plate 214, two sides of each force transfer plate 216 are connected with the annular enclosing plate 212, a plurality of communication holes 215 are formed, and the communication holes 215 are formed between two adjacent force transfer plates 216. With the above structure, the force generated by the deformation of the arc plate 213 can be transmitted to the top plate 211 by the spacer 214 and the force transmitting plate 216, and the pressure can be transmitted to the transmission member 12 through the top plate 211, so that the pressure of the slurry can be transmitted to the monitoring member 13.

In this embodiment, by providing a plurality of force transfer plates 216, the first plenum may be divided into a plurality of sub-plenums, thereby facilitating deformation of the arcuate plate 213. At the same time, pressure is transferred to the top plate 211 more quickly by the plurality of force transfer plates 216.

As shown in fig. 1, a flange 30 is provided on the filling pipe, the outer wall of the annular surrounding plate 212 is attached to the inner wall of the flange 30, an arc plate 213 protrudes downward from the flange 30 and extends into the filling pipe, the first mounting portion 111 is connected to the flange 30, the second mounting portion 22 includes an annular protrusion provided on the outer periphery of the top plate 211, and the annular protrusion is sandwiched between the first mounting portion 111 and the flange 30. With the above structure, the elastic sealing member 20 can be fixed between the mounting bracket 11 and the filling pipe by using the annular protrusion, and the assembly is facilitated. And can form a seal to avoid slurry leakage.

In the present embodiment, the first mounting portion 111 includes an annular flange provided at the mounting bracket 11, and the annular flange and the flange 30 are connected by bolts.

As shown in fig. 1, the monitoring assembly 10 further includes an adjusting spring 14, the adjusting spring 14 is sleeved on the periphery of the transmission member 12, and two ends of the adjusting spring 14 are respectively abutted against the transmission member 12 and the mounting frame 11. By changing the elastic force of the adjusting spring 14, the axial force between the transmission member 12 and the mounting frame 11 can be adjusted, and then the resistance of the vertical movement of the transmission member 12 can be adjusted, so as to adjust the threshold value of the monitoring member 13.

Wherein, one end of the driving member 12 may be provided with a protrusion abutting against the adjusting spring 14, and the driving member 12 may be provided with a driving plate and a driving rod which are connected, and the adjusting spring 14 abuts against the driving plate.

In adjusting the elastic force of the adjusting spring 14 by the mount 11, a vertically movable member, such as a pressing plate, is required to be provided in the mount 11.

As shown in fig. 1, the monitoring assembly 10 further includes a sleeve 15, a pressing plate 112 extending in a transverse direction is disposed in the mounting frame 11, the sleeve 15 is connected with the pressing plate 112, the sleeve 15 is adjustably sleeved on the transmission member 12 along a vertical position, the transmission member 12 is arranged through the pressing plate 112, and the sleeve 15 is abutted with the adjusting spring 14 through the pressing plate 112. The pressure plate 112 can be moved vertically within the mounting frame 11 by adjusting the position of the sleeve 15 to adjust the elastic force of the adjusting spring 14.

As shown in fig. 1, the monitoring assembly 10 further includes a worm wheel 16 and a worm 17 which are engaged with each other, the worm 17 is transversely penetrated through the mounting frame 11, the swing axis of the worm wheel 16 extends vertically, the worm wheel 16 has an internal thread, the sleeve 15 has an external thread, and the sleeve 15 is penetrated through the worm wheel 16 and is in threaded connection with the worm wheel 16. The worm 17 can drive the worm wheel 16 to rotate, and when the worm wheel 16 rotates, the sleeve 15 can move vertically through the threads, and then the sleeve 15 drives the pressing plate 112 to move, so that the elastic force of the adjusting spring 14 is adjusted.

In this embodiment, the worm 17 is provided to pass through the outside of the mounting frame 11, and forms an operation handle.

The worm wheel 16 can only oscillate in the mounting 11 and is relatively stationary in the vertical direction. So that the sleeve 15 rotates and can move vertically.

As shown in fig. 1, the mounting frame 11 includes a housing 113 and a frame 114 disposed in the housing 113, the frame 114 is located above the pressing plate 112, the outer edge of the frame 114 is connected with the mounting frame 11, and the worm wheel 16 is swingably disposed on the frame 114.

As shown in fig. 1, the transmission member 12 includes a transmission plate 121 and a transmission rod 122, the transmission rod 122 is disposed along a transverse direction and connected to a lower end of the transmission rod 122, an upper end of the transmission rod 122 is disposed corresponding to the elastic sealing member 20, the adjustment spring 14 and the sleeve 15 are both sleeved on an outer periphery of the transmission rod 122, the transmission rod 122 is disposed through the pressing plate 112, and the transmission plate 121 and the transmission rod 122 can both move along a vertical direction. The transmission member 12 adopting the structure has the advantages of simple structure and convenient arrangement.

The following description is made in connection with the specific working procedure of the filling pipe pressure monitoring device:

when the slurry flows through the filling pipeline, the pressure of the slurry acts on the arc plate 213 and deforms the arc plate 213 to retract upwards, the arc plate 213 transmits the pressure to the top plate 211 through the partition plate 214 and the plurality of force transmission plates 216, the top plate 211 is more easily deformed and transmits the pressure to the transmission plate 121 due to the action of the annular grooves, the transmission plate 121 overcomes the elastic force of the adjusting spring 14 and lifts the transmission rod 122, and the upper end of the transmission rod 122 is abutted against the monitoring piece 13. At this time, it is known that the pressure in the filling pipe reaches the threshold value.

When the threshold value of the monitoring piece 13 needs to be adjusted, the worm 17 is rotated, and then the worm 17 drives the worm wheel 16 to swing, at this time, the worm wheel 16 can enable the sleeve 15 to vertically move through threads, and then the sleeve 15 drives the pressing plate 112 to vertically move, so that the spring is further compressed or relaxed, and the elastic force of the adjusting spring 14 is adjusted.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A fill pipe pressure monitoring device, the fill pipe pressure monitoring device comprising:

the monitoring assembly (10) comprises a mounting frame (11), a transmission piece (12) and a monitoring piece (13) for monitoring pressure, wherein the mounting frame (11) is provided with a mounting port and a first mounting part (111) connected with a filling pipeline, the transmission piece (12) is vertically and movably arranged in the mounting frame (11), the monitoring piece (13) is arranged in the mounting frame (11), and the transmission piece (12) is provided with a monitoring position contacted with the monitoring piece (13) and a separation position far away from the monitoring piece (13);

and the elastic sealing piece (20) is covered at the mounting opening, and the elastic sealing piece (20) is subjected to deformation so as to be in driving fit with the transmission piece (12), so that the transmission piece (12) moves between the monitoring position and the separation position.

2. The filling pipe pressure monitoring device according to claim 1, characterized in that the elastic sealing member (20) comprises a protruding portion (21) protruding downwards and being deformable, and a second mounting portion (22) connected with the mounting bracket (11) and/or the filling pipe, the protruding portion (21) being arranged at the mounting opening, the protruding portion (21) being in abutment with the transmission member (12).

3. The filling pipe pressure monitoring device according to claim 2, wherein the protruding portion (21) comprises a top plate (211), an annular surrounding plate (212) and an arc plate (213), the upper surface of the top plate (211) is attached to the transmission member (12), the outer edge of the top plate (211) is connected with the upper end of the annular surrounding plate (212), the lower end of the annular surrounding plate (212) is connected with the arc plate (213), and the arc plate (213) protrudes downwards.

4. A filling pipe pressure monitoring device according to claim 3, characterized in that the bulge (21) further comprises a partition plate (214), the partition plate (214) extends in the transverse direction and is connected with the inner wall of the annular coaming plate (212), the partition plate (214) divides the bulge (21) into a first air chamber and a second air chamber, a communication hole (215) is arranged on the partition plate (214), and the first air chamber and the second air chamber are communicated through the communication hole (215).

5. The filling pipe pressure monitoring device according to claim 4, wherein the protrusion (21) further comprises a plurality of force transfer plates (216), the plurality of force transfer plates (216) are arranged at intervals in the transverse direction and extend vertically, two ends of each force transfer plate (216) are respectively connected with the top plate (211) and the partition plate (214), two sides of each force transfer plate (216) are respectively connected with the annular enclosing plate (212), a plurality of communication holes (215) are formed, and the communication holes (215) are formed between two adjacent force transfer plates (216).

6. A filling pipe pressure monitoring device according to claim 3, characterized in that a flange (30) is provided on the filling pipe, the outer wall of the annular surrounding plate (212) is attached to the inner wall of the flange (30), the arc plate (213) protrudes downwards from the flange (30) and extends into the filling pipe, the first mounting portion (111) is connected with the flange (30), the second mounting portion (22) comprises an annular protrusion arranged on the periphery of the top plate (211), and the annular protrusion is clamped between the first mounting portion (111) and the flange (30).

7. The filling pipe pressure monitoring device according to claim 1, wherein the monitoring assembly (10) further comprises an adjusting spring (14), the adjusting spring (14) is sleeved on the periphery of the transmission member (12), and two ends of the adjusting spring (14) are respectively abutted against the transmission member (12) and the mounting frame (11).

8. The filling pipe pressure monitoring device according to claim 7, wherein the monitoring assembly (10) further comprises a sleeve (15), a pressing plate (112) extending transversely is arranged in the mounting frame (11), the sleeve (15) is connected with the pressing plate (112), the sleeve (15) is sleeved on a transmission member (12) in an adjustable manner along the vertical position, the transmission member (12) is arranged on the pressing plate (112) in a penetrating manner, and the sleeve (15) is abutted with the adjusting spring (14) through the pressing plate (112).

9. The filling pipe pressure monitoring device according to claim 8, wherein the monitoring assembly (10) further comprises a worm wheel (16) and a worm (17) which are meshed, the worm (17) is transversely arranged through the mounting frame (11), the swing axis of the worm wheel (16) extends vertically, the worm wheel (16) is provided with internal threads, the sleeve (15) is provided with external threads, and the sleeve (15) is arranged through the worm wheel (16) in a penetrating manner and is in threaded connection with the worm wheel (16).

10. The fill tube pressure monitoring device of claim 9 wherein,

the mounting frame (11) comprises a shell (113) and a frame body (114) arranged in the shell (113), the frame body (114) is positioned above the pressing plate (112), the outer edge of the frame body (114) is connected with the mounting frame (11), and the worm wheel (16) is arranged on the frame body (114) in a swinging manner;

the transmission piece (12) comprises a transmission plate (121) and a transmission rod (122), the transmission rod (122) is transversely arranged and connected with the lower end of the transmission rod (122), the upper end of the transmission rod (122) corresponds to the elastic sealing piece (20), the adjusting spring (14) and the sleeve (15) are sleeved on the periphery of the transmission rod (122), the transmission rod (122) is arranged on the pressing plate (112) in a penetrating mode, and the transmission plate (121) and the transmission rod (122) can vertically move.