Intelligent fuel gas pressure regulating box with filter element blockage self-detection function

Abstract

The invention relates to the technical field of filtering detection, in particular to an intelligent fuel gas pressure regulating box with a filter element blockage self-detection function, which comprises a box body, a box door is hinged to the outer side of the box body, a gas inlet pipeline and a pressure regulating pipeline are fixedly mounted in the box body through a bracket, and an electromagnetic flowmeter is fixedly mounted at an inlet of the pressure regulating pipeline through a flange; the electromagnetic flow meter is electrically connected with an external controller, and a reversing assembly is arranged between the air inlet pipeline and the pressure adjusting pipeline. The reversing mechanism is arranged between the pressure regulating valve and the flowmeter mounting pipe section, and the two filter assemblies are matched, so that the automatic switching function after the filter element is blocked is achieved. When the filter element of one filter assembly is blocked, gas pressure pushes the reversing mechanism to act, the other standby filter assembly is automatically switched to continue working, manual intervention is not needed, normal operation of a gas pipeline is guaranteed, the problem of too high pressure caused by blockage of the filter element is solved, and the safety of gas conveying is improved.

Description

Technical Field

[0001] This invention relates to the field of filtration detection technology, specifically to a smart gas pressure regulating box with a filter element clogging self-detection function. Background Technology

[0002] Gas pressure regulating boxes are key equipment in gas transmission systems. Their core function is to regulate the high-pressure gas from upstream to the stable pressure required by downstream users, ensuring a safe and stable gas supply. To prevent impurities in the gas from affecting the working accuracy of the pressure regulating components or even causing malfunctions, a filter device is usually installed inside the pressure regulating box to purify the gas.

[0003] Most existing gas pressure regulating boxes use a single filter element, which is prone to clogging due to impurities during use. Once clogged, gas flow is obstructed, affecting normal gas delivery and causing abnormal pressure increases upstream of the clogged area, posing a significant safety hazard. Furthermore, existing pressure regulating boxes lack efficient self-detection and automatic response mechanisms for filter clogging, relying heavily on manual periodic inspections. This is not only labor-intensive but also time-consuming, making it difficult to detect clogging hazards in real time and potentially leading to gas supply interruptions or safety accidents. Summary of the Invention

[0004] The purpose of this invention is to provide a smart gas pressure regulating box with a filter clogging self-detection function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a smart gas pressure regulating box with filter clogging self-detection function, comprising a box body, a box door hinged to the outside of the box body, an air inlet pipe and a pressure regulating pipe fixedly installed inside the box body by a bracket, an electromagnetic flow meter fixedly installed at the inlet of the pressure regulating pipe by a flange, the electromagnetic flow meter being electrically connected to an external controller, a reversing assembly provided between the air inlet pipe and the pressure regulating pipe, the reversing assembly comprising a reversing seat, two sets of four connecting pipes symmetrically welded to the outside of the reversing seat, two connecting pipes in each set being located on the upper and lower sides of the reversing seat respectively, and a set of filter components installed on each set of two connecting pipes.

[0006] Preferably, the filter assembly includes a bend, an mounting tube, a filter tube, and a filter element. One end of the bend is connected to a connecting tube via a thread, and the other end of the bend is connected to the mounting tube via a thread. The two mounting tubes are connected by a flange, and the filter tube has a groove inside. The filter element is detachably installed inside the filter tube through the groove.

[0007] Preferably, a second valve ball is rotatably connected to the end of the reversing seat near the intake pipe via a bearing, and a first valve ball is rotatably connected to the end of the reversing seat near the pressure regulating pipe via a bearing. A connecting sleeve is welded to the top of the second valve ball, and the connecting sleeve is rotatably connected to the inside of the reversing seat via a bearing. A piston is slidably installed inside the second valve ball and the connecting sleeve, and the top of the piston is slidably connected to the inner wall of the second valve ball via a guide rail.

[0008] Preferably, a steering mechanism is fixedly installed inside the reversing seat. The steering mechanism includes a mounting seat, a drive rod, a movable seat, a torsion spring, a drive seat, a guide wheel, and a one-way bearing. The mounting seat is fixed inside the reversing seat by bolts. The movable seat is rotatably connected to the mounting seat via an annular guide rail. A torsion spring is fixedly installed between the movable seat and the connecting sleeve. A drive rod is welded to the top of the piston. A rotating sleeve is rotatably connected to the outside of the drive rod. The rotating sleeve is slidably connected to the mounting seat via a spline. The drive seat is rotatably connected to the outside of the rotating sleeve via a one-way bearing.

[0009] Preferably, a spiral groove is provided on the outer side of the drive seat, and a guide wheel is fixedly installed inside the movable seat via an installation shaft, with the roller of the guide wheel rolling and embedding into the spiral groove.

[0010] Preferably, an annular groove is provided on the outer side of the drive rod, and the rotating sleeve is rotatably mounted in the annular groove via a bearing.

[0011] Preferably, a flat key is symmetrically welded to the top of the drive rod, a limiting sleeve is welded to the bottom of the valve ball, a sliding groove adapted to the flat key is opened inside the limiting sleeve, and a spring is fixedly installed between the inner wall of the top of the limiting sleeve and the upper surface of the drive rod.

[0012] Preferably, the reversing seat is provided with a locking mechanism, the locking mechanism including a pusher welded to the top of the piston, two mounting grooves are symmetrically opened on the inner wall of the reversing seat, a locking block is slidably installed in the mounting groove, a circular groove is opened on the side of the locking block away from the connecting sleeve, a second spring is fixedly installed in the circular groove, and locking grooves are symmetrically opened on the outer side of the connecting sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a reasonable structural design and strong functionality, and has the following advantages: 1. By installing a reversing mechanism between the pressure regulating valve and the flow meter installation section, and in conjunction with two sets of filter components, an automatic switching function is achieved after the filter element becomes clogged. When the filter element of one set of filter components becomes clogged, the gas pressure drives the reversing mechanism to automatically switch to the other set of standby filter components to continue working, without manual intervention. This ensures the normal operation of the gas pipeline and avoids the problem of excessive pressure caused by filter element clogging, thus improving the safety of gas transmission.

[0014] 2. By installing a flow meter at the inlet of the pipe section, the gas flow can be detected in real time, enabling self-detection of filter blockage. Combined with the automatic switching function of the reversing mechanism, a closed-loop control system with blockage detection, automatic switching, and continuous supply is formed. This solves the drawbacks of existing technologies that rely on manual inspection and untimely detection, reduces labor costs, and improves the intelligence level of the equipment.

[0015] 3. The reversing mechanism achieves synchronous 180-degree rotation of the upper and lower reversing components through the transmission mechanism, ensuring smooth connection of the gas passage after reversing; at the same time, the setting of the limit mechanism can accurately control the triggering time of the reversing action. The reversing will only be triggered when the gas pressure reaches the set threshold, that is, when the filter element is severely blocked, thus avoiding the occurrence of false action. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the commutation component and the filtering component of the present invention; Figure 3 This is a schematic cross-sectional view of the commutation component and the filter component of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the commutator seat of the present invention; Figure 5 This is a schematic cross-sectional view of valve ball one and valve ball two of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle; Figure 7 This is a partial structural schematic diagram of the steering mechanism of the present invention; Figure 8 This is a schematic diagram of the drive rod structure of the present invention; Figure 9 This is a schematic cross-sectional view of the connecting sleeve and movable seat of the present invention; Figure 10 For the present invention Figure 9 Schematic diagram of the structure at point B; Figure 11 This is a schematic diagram of the cross-sectional structure of the commutator seat of the present invention; Figure 12 For the present invention Figure 10 Schematic diagram of the structure at point C; Figure 13 This is a schematic diagram of the connecting sleeve structure of the present invention.

[0017] In the diagram: 1. Housing; 2. Intake pipe; 3. Pressure regulating pipe; 4. Door; 5. Reversing assembly; 51. Reversing seat; 52. Connecting pipe; 53. Valve ball one; 54. Valve ball two; 55. Connecting sleeve; 56. Steering mechanism; 561. Mounting seat; 562. Drive rod; 563. Movable seat; 564. Torsion spring; 565. Drive seat; 566. Flat key; 567. Spring one; 568. Spiral groove; 569. One-way bearing; 560. Guide wheel; 5601. Rotating sleeve; 57. Snap-fit ​​mechanism; 571. Snap block; 572. Push table; 573. Mounting groove; 574. Circular groove; 575. Spring two; 576. Snap-fit ​​groove; 58. Piston; 59. Limiting sleeve; 6. Filter assembly; 61. Filter tube; 62. Mounting tube; 63. Bend; 64. Filter element. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 13 This invention provides a technical solution: a smart gas pressure regulating box with a filter clogging self-detection function, including a box body 1, a door 4 hinged to the outside of the box body 1, and an air inlet pipe 2 and a pressure regulating pipe 3 fixedly installed inside the box body 1 by a bracket. The air inlet pipe 2 is used to connect to upstream high-pressure gas, and the pressure regulating pipe 3 is used to regulate the filtered gas to a set pressure and then deliver it downstream. An electromagnetic flow meter is fixedly installed at the inlet of the pressure regulating pipe 3 by a flange. The electromagnetic flow meter is electrically connected to an external controller and can transmit flow data to the controller in real time. The controller determines whether the filter is clogged by a preset flow threshold. When the flow is lower than the preset threshold, it is determined that the filter is clogged.

[0020] A reversing assembly 5 is installed between the intake pipe 2 and the pressure regulating pipe 3. The reversing assembly 5 includes a reversing seat 51 fixedly installed between the intake pipe 2 and the pressure regulating pipe 3 via a flange. The reversing seat 51 is made of cast steel, and its side wall is integrally formed with a transparent observation port. The transparent observation port is made of tempered glass and is sealed and embedded in the side wall of the reversing seat 51 to facilitate observation of the rotation status of the internal valve ball. Two sets of four connecting pipes 52 are symmetrically welded to the outside of the reversing seat 51. The two connecting pipes 52 in each set are located on the upper and lower sides of the reversing seat 51, and the two connecting pipes 52 in the same set are coaxially arranged. A set of filter components 6 is installed on each set of two connecting pipes 52 to realize the backup design of dual filter components 6, so as to cooperate with self-detection and ensure that the pipeline can always maintain the working state.

[0021] The filter assembly 6 includes a bend 63, an installation pipe 62, a filter pipe 61, and a filter element 64. Each set of bends 63 and installation pipes 62 has two bends. Each bend 63 is made of stainless steel. One end of each bend 63 is threaded to the connecting pipe 52, and the other end is threaded to the installation pipe 62. Teflon tape is wrapped around the threaded connection to improve sealing. The two installation pipes 62 in each set are connected to the filter pipe 61 via a flange, with a sealing gasket at the flange connection. The filter pipe 61 has an internal groove, through which the filter element 64 can be detachably installed. The filter element 64 uses a composite structure of activated carbon and metal mesh, effectively filtering impurities and dust from the gas. When the filter element 64 needs to be replaced, simply remove the flange between the installation pipe 62 and the filter pipe 61 to remove the filter element 64; the operation is convenient.

[0022] A valve ball 54 is rotatably connected to the end of the reversing seat 51 near the intake pipe 2 via a bearing. The valve ball 54 has an L-shaped through-hole adapted to the connecting pipe 52. One end of the through-hole connects to the intake pipe 2, and the other end connects to the connecting pipe 52, used to control the gas flow direction at the bottom intake end. A valve ball 53 is rotatably connected to the end of the reversing seat 51 near the pressure regulating pipe 3 via a bearing. The valve ball 53 also has a through-hole adapted to the connecting pipe 52. One end of the through-hole connects to the pressure regulating pipe 3, and the other end connects to the connecting pipe 52, used to control the gas flow direction at the top outlet end. Gas flow direction; A connecting sleeve 55 is welded to the top of the valve ball 2 54. The connecting sleeve 55 is rotatably connected to the inside of the reversing seat 51 through a bearing. The connecting sleeve 55 and the valve ball 2 54 are coaxially arranged; A piston 58 is slidably installed inside the valve ball 2 54 and the connecting sleeve 55. A sealing ring is fitted on the outside of the piston 58 to ensure the sealing between the piston 58, the valve ball 2 54, and the connecting sleeve 55, and to prevent gas leakage; The top of the piston 58 is slidably connected to the inner wall of the valve ball 2 54 through a guide rail. The guide rail is an axially arranged strip groove and a protrusion matching structure to ensure that the piston 58 can slide axially and rotate synchronously with the valve ball 2 54.

[0023] A steering mechanism 56 is fixedly installed inside the reversing seat 51. The steering mechanism 56 includes a mounting seat 561, a drive rod 562, a movable seat 563, a torsion spring 564, a drive seat 565, a guide wheel 560, and a one-way bearing 569. The mounting seat 561 is fixed inside the reversing seat 51 by bolts. The bottom of the mounting seat 561 is provided with an annular guide rail. The movable seat 563 is rotatably connected to the mounting seat 561 through the annular guide rail. The bottom of the mounting seat 561 has a groove for the drive seat 565 to move up and down. A torsion spring 564 is fixedly installed between the movable seat 563 and the connecting sleeve 55. The torsion spring 564 is fitted on the outside of the movable seat 563, and one end of it is connected to the movable seat. 563 is welded, and the other end is welded to the inner wall of the connecting sleeve 55; a drive rod 562 is welded to the top of the piston 58, and a rotating sleeve 5601 is rotatably connected to the outside of the drive rod 562. The rotating sleeve 5601 is slidably connected to the mounting seat 561 through a spline. The drive seat 565 is rotatably connected to the outside of the rotating sleeve 5601 through a one-way bearing 569. The one-way bearing 569 is horizontally set and is installed between the drive seat 565 and the rotating sleeve 5601 to realize the rotational connection between the drive seat 565 and the rotating sleeve 5601. An annular groove is opened on the outside of the drive rod 562, and the rotating sleeve 5601 is rotatably installed in the annular groove through the bearing. A spiral groove 568 is provided on the outer side of the drive seat 565, and a guide wheel 560 is fixedly installed inside the movable seat 563 via a mounting shaft. The roller of the guide wheel 560 rolls and embeds itself into the spiral groove 568. like Figure 5 , Figure 7 and Figure 8 As shown, the assembly direction of the one-way bearing 569 is set so that only the rotating sleeve 5601 is allowed to drive the drive seat 565 to rotate clockwise; reverse transmission cannot be achieved, that is, the drive seat 565 cannot be linked to the rotating sleeve 5601 when rotating clockwise, and the rotating sleeve 5601 cannot be linked to the drive seat 565 when rotating counterclockwise, thereby achieving a one-way limiting effect on the rotation direction of the drive seat 565. When the drive rod 562 moves upward, the drive seat 565 is constrained by a one-way limit and cannot rotate counterclockwise. The drive seat 565 pushes the movable seat 563 to rotate clockwise through the sliding fit between its spiral groove 568 and the guide wheel 560. After the rotation is completed, the drive rod 562 is kept in a fixed position by the pressure of the bottom air inlet of the reversing seat 51. Therefore, the position of the movable seat 563 after completing a 180-degree clockwise rotation can be stably maintained. The piston 58 rotates synchronously with the valve ball 54. Since the piston 58 and the rotating sleeve 5601 are rotating assembly structures, the rotation of the piston 58 cannot drive the rotating sleeve 5601 to rotate synchronously through the drive rod 562. Only when the pressure on the drive rod 562 decreases and it resets and moves downward, the drive rod 562 will drive the rotating sleeve 5601 to move downward synchronously. At this time, the sliding cooperation between the spiral groove 568 and the guide wheel 560 will push the drive seat 565 to rotate clockwise, completing the reset action and preparing for the next reversing operation.

[0024] A flat key 566 is symmetrically welded to the top of the drive rod 562, and a limiting sleeve 59 is welded to the bottom of the valve ball 53. The limiting sleeve 59 has a groove that matches the flat key 566. The top of the drive rod 562 is slidably inserted into the limiting sleeve 59, and the flat key 566 is slidably embedded in the groove. A spring 567 is fixedly installed between the inner wall of the top of the limiting sleeve 59 and the upper surface of the drive rod 562. The spring 567 is a compression spring, which applies a downward elastic force to the drive rod 562 in its initial state, setting the pressure threshold for the piston 58 to move.

[0025] The reversing seat 51 is internally equipped with a locking mechanism 57, which includes a pusher 572, a locking block 571, a spring 575, and a mounting groove 573. The pusher 572 is welded to the top of the piston 58, and the top of the pusher 572 has a sloping structure. Two mounting grooves 573 are symmetrically opened on the inner wall of the reversing seat 51. The locking block 571 is slidably installed inside the mounting groove 573. One end of the locking block 571 is a wedge-shaped part, which is adapted to the sloping surface of the pusher 572, and the other end is a rectangular part. A circular groove 574 is provided on the side of 571 away from the connecting sleeve 55. A second spring 575 is fixedly installed in the circular groove 574. The second spring 575 is a compression spring. In the initial state, it pushes the locking block 571 to move towards the connecting sleeve 55. A locking groove 576 is symmetrically provided on the outer side of the connecting sleeve 55. The locking groove 576 is composed of a wedge-shaped groove and a rectangular groove. In the initial state, the rectangular part of the locking block 571 is embedded in the rectangular part of the locking groove 576 to realize the rotation limit of the connecting sleeve 55.

[0026] The working process of this embodiment is as follows: Normal filtration state: In the initial state, the through holes of valve ball 1 53 and valve ball 2 54 correspond to the right-side filter assembly 6. The gas enters the bottom of the reversing seat 51 through the intake pipe 2, enters the bottom right connecting pipe 52 through the through hole of valve ball 2 54, and then enters the filter pipe 61 through the bend pipe 63 and installation pipe 62 of the right-side filter assembly 6. After impurities are filtered by the filter element 64, the gas enters the top of the reversing seat 51 through the top right installation pipe 62, bend pipe 63, and connecting pipe 52, and enters the pressure regulating pipe 3 through the through hole of valve ball 1 53. The flow meter detects the gas flow in real time and transmits the data to the controller.

[0027] Blockage detection and reversing trigger: When the filter element 64 of the right filter assembly 6 is blocked, the gas flow resistance increases and the flow rate at the inlet of the pressure regulating pipe 3 decreases. When the flow rate is lower than the controller's preset threshold, it is determined that the filter element is blocked. At the same time, the pressure at the bottom air inlet of the reversing seat 51 gradually increases due to the obstruction of gas flow. When the pressure reaches the threshold set by spring 567, the high-pressure gas pushes the piston 58 to move upward. The piston 58 drives the push table 572 to move upward synchronously. The inclined surface of the push table 572 contacts the wedge-shaped surface of the locking block 571 and pushes the locking block 571 to slide into the mounting groove 573, compressing the spring 575 until the rectangular part of the locking block 571 disengages from the rectangular part of the locking groove 576 of the connecting sleeve 55, releasing the rotation limit on the connecting sleeve 55.

[0028] Synchronous reversal process: When piston 58 moves upward, it drives drive rod 562 to move upward synchronously. Drive rod 562 drives drive seat 565 to move upward through rotating sleeve 5601 and one-way bearing 569. The spiral groove 568 on the outside of drive seat 565 cooperates with guide wheel 560 in movable seat 563, driving movable seat 563 to rotate clockwise. During the rotation of movable seat 563, torsion spring 564 is compressed, storing elastic potential energy. When the locking mechanism 57 releases the limit on connecting sleeve 55, torsion spring 564 is released. The elastic potential energy drives the connecting sleeve 55 to rotate 180 degrees clockwise. The connecting sleeve 55 drives the valve ball 2 54 to rotate 180 degrees synchronously. At the same time, the connecting sleeve 55 drives the valve ball 1 53 to rotate 180 degrees synchronously through the piston 58 and the drive rod 562. The flat key 566 and the sliding groove of the limiting sleeve 59 cooperate to ensure synchronous rotation. After the valve ball 1 53 and the valve ball 2 54 rotate 180 degrees, their through holes correspond to the left filter assembly 6, and the gas flow direction is switched to the left filter assembly 6 to achieve continuous filtration without stopping the machine.

[0029] Reset and Maintenance: After the switching is completed, the pressure at the bottom air intake of the reversing seat 51 gradually returns to normal. At this time, the drive rod 562 moves downward and resets under the elastic action of the top spring 567. It also drives the drive seat 565 through the rotating sleeve 5601 and the one-way bearing 569, so that the drive seat 565 rotates and moves down to the initial position under the action of the spiral groove 568 and the guide wheel 560, preparing for the next reversal. When the drive rod 562 moves downward, the push table 572 releases the limit on the locking block 571, so that the locking block 571 resets under the elastic action of the second spring 575 to realize the rotation limit on the connecting sleeve 55. The operator can observe the reversing status through the transparent observation port on the reversing seat 51. After confirming that the reversal is completed, the box door 4 can be opened, the flange of the right filter assembly 6 can be removed, and the clogged filter element 64 can be taken out for replacement or cleaning.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart gas pressure regulating box with filter clogging self-detection function, comprising a box body (1), characterized in that: The outer side of the box (1) is hinged with a box door (4). Inside the box (1), an air inlet pipe (2) and a pressure regulating pipe (3) are fixedly installed by a bracket. An electromagnetic flow meter is fixedly installed at the inlet of the pressure regulating pipe (3) by a flange. The electromagnetic flow meter is electrically connected to an external controller. A reversing assembly (5) is provided between the air inlet pipe (2) and the pressure regulating pipe (3). The reversing assembly (5) includes a reversing seat (51). Two sets of four connecting pipes (52) are symmetrically welded on the outer side of the reversing seat (51). The two connecting pipes (52) in each set are located on the upper and lower sides of the reversing seat (51), respectively. A set of filter components (6) is installed on each set of two connecting pipes (52).

2. The intelligent gas pressure regulating box with filter clogging self-detection function according to claim 1, characterized in that: The filter assembly (6) includes a bend (63), an installation tube (62), a filter tube (61), and a filter element (64). One end of the bend (63) is connected to the connecting tube (52) by a thread, and the other end of the bend (63) is connected to the installation tube (62) by a thread. The two installation tubes (62) are connected by a flange to the filter tube (61). The filter tube (61) has a groove inside, and the filter element (64) is detachably installed in the filter tube (61) through the groove.

3. The intelligent gas pressure regulating box with filter clogging self-detection function according to claim 1, characterized in that: The reversing seat (51) has a valve ball two (54) rotatably connected to the end near the intake pipe (2) via a bearing. The reversing seat (51) has a valve ball one (53) rotatably connected to the end near the pressure regulating pipe (3) via a bearing. A connecting sleeve (55) is welded to the top of the valve ball two (54). The connecting sleeve (55) is rotatably connected to the inside of the reversing seat (51) via a bearing. A piston (58) is slidably installed inside the valve ball two (54) and the connecting sleeve (55). The top of the piston (58) is slidably connected to the inner wall of the valve ball two (54) via a guide rail.

4. A smart gas pressure regulating box with filter clogging self-detection function according to claim 3, characterized in that: The reversing seat (51) is internally fixedly equipped with a steering mechanism (56). The steering mechanism (56) includes a mounting seat (561), a drive rod (562), a movable seat (563), a torsion spring (564), a drive seat (565), a guide wheel (560), and a one-way bearing (569). The mounting seat (561) is fixed inside the reversing seat (51) by bolts. The movable seat (563) is rotatably connected to the mounting seat (561) through an annular guide rail. A torsion spring (564) is fixedly installed between the movable seat (563) and the connecting sleeve (55). The piston (58) is welded to the top of the drive rod (58). A rotating sleeve (5601) is rotatably connected to the outside of the drive rod (562). The rotating sleeve (5601) is slidably connected to the mounting seat (561) through a spline. The outside of the rotating sleeve (5601) is rotatably connected to the drive seat (565) through a one-way bearing (569).

5. A smart gas pressure regulating box with filter clogging self-detection function according to claim 4, characterized in that: The drive seat (565) has a spiral groove (568) on its outer side, and a guide wheel (560) is fixedly installed inside the movable seat (563) by a mounting shaft. The roller of the guide wheel (560) is rolled and embedded in the spiral groove (568).

6. A smart gas pressure regulating box with filter clogging self-detection function according to claim 4, characterized in that: The drive rod (562) has an annular groove on its outer side, and the rotating sleeve (5601) is rotatably mounted in the annular groove through a bearing.

7. A smart gas pressure regulating box with filter clogging self-detection function according to claim 4, characterized in that: The top of the drive rod (562) is symmetrically welded with a flat key (566), and the bottom of the valve ball (53) is welded with a limiting sleeve (59). The limiting sleeve (59) has a sliding groove inside that is adapted to the flat key (566). A spring (567) is fixedly installed between the inner wall of the top of the limiting sleeve (59) and the upper surface of the drive rod (562).

8. A smart gas pressure regulating box with filter clogging self-detection function according to claim 1, characterized in that: The reversing seat (51) is provided with a snap-fit ​​mechanism (57), which includes a pusher (572) welded to the top of the piston (58). The inner wall of the reversing seat (51) is symmetrically provided with two mounting grooves (573). A snap-fit ​​block (571) is slidably installed inside the mounting groove (573). A circular groove (574) is provided on the side of the snap-fit ​​block (571) away from the connecting sleeve (55). A spring (575) is fixedly installed in the circular groove (574). A snap-fit ​​groove (576) is symmetrically provided on the outer side of the connecting sleeve (55).

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