Leakage protection fuel gas pressure regulating box

Abstract

The invention discloses a leakage protection fuel gas pressure regulating box which comprises a protection box, box doors are arranged at the two ends of one side of the protection box, a fuel gas detector is fixedly connected to the bottom end of the interior of the protection box, and a controller is fixedly connected to the inner wall of the protection box; the air supply assembly comprises an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are both fixedly connected to the interior of the protection box, electromagnetic valves and pressure sensors are arranged on the air inlet pipe and the air outlet pipe, and pressure regulators are arranged at the ends, close to each other, of the air inlet pipe and the air outlet pipe; and the two ventilation windows are fixedly connected to the tops of the two ends of the protection box correspondingly. Through the structural cooperation of the protection assembly, when the gas concentration in the protection box exceeds the standard, the gas inlet pipe and the gas outlet pipe can be blocked, and meanwhile, gas exchange between the protection box and the outside is achieved, so that the gas concentration is reduced, and the overall safety is greatly guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of gas, in particular to a leakage protection gas pressure regulating box. Background Art

[0002] Gas is a general term for gaseous fuels, which can burn and release heat for use by residents and industrial enterprises. There are many types of gas, mainly natural gas, artificial gas, liquefied petroleum gas, biogas, and coal-to-gas.

[0003] At present, before the gas reaches the end user, it needs to pass through a gas pressure regulating box to solve the energy loss problem caused by pressure fluctuations between the pipeline and the end user, so as to improve the efficiency of gas transportation;

[0004] However, the gas pressure regulating box in the traditional technology lacks effective protection measures when the gas leaks. When the gas concentration in the box is high, the risk of use is high and it is easy to cause irreparable property losses.

[0005] To this end, the present invention provides a leakage protection gas pressure regulating box to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a leakage protection gas pressure regulating box to solve the above problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a leakage protection gas pressure regulating box, comprising:

[0008] A protection box, wherein both ends of one side of the protection box are provided with box doors, a gas detector is fixedly connected to the bottom end of the interior of the protection box, and a controller is fixedly connected to the inner wall of the protection box;

[0009] An air supply assembly, the air supply assembly includes an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are both fixedly connected to the inside of the protective box, the air inlet pipe and the air outlet pipe are both provided with a solenoid valve and a pressure sensor, and a pressure regulator is provided at one end of the air inlet pipe and the air outlet pipe close to each other;

[0010] Two ventilation windows, the two ventilation windows are respectively fixedly connected to the tops of both ends of the protection box;

[0011] A protection component is arranged between the top of the protection box and the ventilation window, and is used to cooperate with the ventilation window to reduce the gas concentration in the protection box.

[0012] Preferably, the protection assembly includes a support shaft, a sealing plate, a positioning seat, a linkage rod and a guide box, the top of the ventilation window is rotatably connected to the support shaft, the middle of the support shaft is fixedly connected to the sealing plate, the sealing plate is fixedly connected to one end away from the support shaft, and one end of the positioning seat is rotatably connected to the linkage rod, both ends of the top of the protection box are fixedly connected to the guide box, and the two guide boxes are respectively located at two opposite corners of the top of the protection box, the top of the guide box is fixedly connected to an air injection pipe, and the end of the air injection pipe away from the guide box is also connected to the protection box, the end of the guide box away from the air injection pipe is slidably connected to a displacement rod, the end of the displacement rod located inside the guide box is fixedly connected to a pushing piece, the end of the displacement rod away from the pushing piece is fixedly connected to an assembly ear, and the end of the linkage rod away from the positioning seat is also rotatably connected to the assembly ear, and a transmission assembly is provided in the middle of the top of the protection box, and the transmission assembly is used to cooperate with the linkage rod to drive the sealing plate to flip.

[0013] Preferably, the transmission assembly includes a transmission seat, a transmission shaft, a threaded section and an extension frame. The middle part of the top of the protective box is fixedly connected to the transmission seat, the inner side of the transmission seat is rotatably connected to the transmission shaft, both ends of the transmission shaft are provided with threaded sections, and the thread rotation directions of the two threaded sections are opposite, the middle part of the transmission seat is fixedly connected to a transmission motor, the output end of the transmission motor and the middle part of the transmission shaft are fixedly connected to a transmission bevel gear, and the two transmission bevel gears are meshingly connected, the outer sides of the two threaded sections are threadedly connected to displacement plates, and the two displacement rods are respectively fixedly connected to one end of the displacement plate, and warning components are provided at both ends of the transmission seat.

[0014] Preferably, the warning component includes a linkage shaft, an acceleration shaft, a transmission spur gear, an acceleration spur gear, an eccentric plate and a guide column, both ends of the transmission seat are rotatably connected with the linkage shaft and the acceleration shaft, and the linkage shaft is fixedly connected to the transmission shaft, the outer side of the linkage shaft is fixedly connected with the transmission spur gear, the outer side of the acceleration shaft is fixedly connected with the acceleration spur gear, and the acceleration spur gear is meshed with the transmission spur gear, one end of the acceleration shaft is fixedly connected with the eccentric plate, and the end of the eccentric plate away from the acceleration shaft is fixedly connected with the guide column, the top of the two ends of the transmission seat is fixedly connected with a positioning plate, the middle of the positioning plate is rotatably connected with a stabilizing shaft, one end of the stabilizing shaft is fixedly connected with a knocking plate, a linkage through groove is opened in the middle of the knocking plate, and the guide column is also movably connected to the inside of the linkage through groove, the two ends of the top of the protection box are fixedly connected with warning frames, and the two knocking plates are respectively located inside the warning frames.

[0015] Preferably, the bottom ends of the air inlet pipe and the air outlet pipe both pass through the protective box, and the bottom ends of the air inlet pipe and the air outlet pipe are fixedly connected with flanges, and the inside of the air inlet pipe is fixedly connected with a filter.

[0016] Preferably, the gas detector, solenoid valve and pressure sensor are all electrically connected to the controller.

[0017] Preferably, both ends of the top of the vent window are fixedly connected with support ears, and the support shaft is rotatably connected between the two support ears.

[0018] Preferably, a sealing strip is fixedly connected to the outer side of the pushing piece, and a transition fit is formed between the sealing strip and the inner wall of the guide box.

[0019] Preferably, a linear guide rod is fixedly connected to the inner side of the transmission seat, and the displacement plate is also slidably connected to the outer side of the linear guide rod, an extension frame is fixedly connected to the middle of the transmission seat, and the transmission motor is connected to the top of the extension frame by bolts.

[0020] Preferably, both ends of the warning frame are fixedly connected with a bell plate, and the bell plate is a hollow structure.

[0021] Beneficial Effects

[0022] The present invention provides a leakage protection gas pressure regulating box. Compared with the prior art, it has the following beneficial effects:

[0023] The leakage protection gas pressure regulating box, through the structural coordination of the protection components, can block the air inlet and outlet pipes when the gas concentration in the protection box exceeds the standard, while achieving ventilation between the protection box and the outside, thereby reducing the gas concentration and greatly ensuring the overall safety.

[0024] The leakage protection gas pressure regulating box, through the structural cooperation of the transmission assembly, can inject gas into the protection box with the help of the gas injection pipe when the sealing plate is opened, so as to accelerate the gas exchange efficiency.

[0025] The leakage protection gas pressure regulating box can make a sound when the gas in the protection box exceeds the standard through the setting of the warning component, so as to remind personnel to carry out timely maintenance. The warning component is transmitted through the transmission component, which greatly improves the overall linkage and reduces the power consumption during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the protection box of the present invention;

[0028] Figure 3is a schematic structural diagram of the gas supply assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the protection component of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the transmission assembly of the present invention;

[0031] Figure 6 It is a schematic diagram of the internal structure of the guide box of the present invention;

[0032] Figure 7 It is a schematic diagram of the assembly structure of the warning component of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the warning component of the present invention.

[0034] In the figure, 1, protective box; 2, box door; 3, gas detector; 4, air inlet pipe; 5, air outlet pipe; 6, solenoid valve; 7, pressure sensor; 8, voltage regulator; 9, vent window; 10, protection component; 11, support shaft; 12, blocking plate; 13, positioning seat; 14, linkage rod; 15, guide box; 16, gas injection pipe; 17, displacement rod; 18, push piece; 19, assembly ear; 20, transmission component; 21, transmission seat; 22, transmission shaft; 23, threaded section; 24, extension frame; 25, transmission motor; 26, transmission bevel gear; 27, displacement plate; 28, warning component; 29, linkage shaft; 30, acceleration shaft; 31, transmission spur gear; 32, acceleration spur gear; 33, eccentric plate; 34, guide column; 35, positioning plate; 36, stabilization shaft; 37, knocking plate; 38, linkage slot; 39, warning frame. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1-8 , a leakage protection gas pressure regulating box, comprising:

[0038] A protection box 1, with doors 2 provided at both ends of one side of the protection box 1, a gas detector 3 fixedly connected to the bottom end of the interior of the protection box 1, and a controller fixedly connected to the inner wall of the protection box 1;

[0039] Air supply assembly, the air supply assembly includes an air inlet pipe 4 and an air outlet pipe 5, the air inlet pipe 4 and the air outlet pipe 5 are fixedly connected to the inside of the protection box 1, the air inlet pipe 4 and the air outlet pipe 5 are provided with a solenoid valve 6 and a pressure sensor 7, and a pressure regulator 8 is provided at one end of the air inlet pipe 4 and the air outlet pipe 5 close to each other;

[0040] Two ventilation windows 9, the two ventilation windows 9 are respectively fixedly connected to the tops of both ends of the protection box 1;

[0041] A protection component 10, which is disposed between the top of the protection box 1 and the ventilation window 9, and is used to cooperate with the ventilation window 9 to reduce the gas concentration in the protection box 1;

[0042] In detail, the bottom ends of the air inlet pipe 4 and the air outlet pipe 5 both pass through the protective box 1, and the bottom ends of the air inlet pipe 4 and the air outlet pipe 5 are fixedly connected with flanges, and the inside of the air inlet pipe 4 is fixedly connected with a filter screen. Through the setting of the flange, the air inlet pipe 4 and the air outlet pipe 5 can be conveniently connected to the external gas pipeline, and with the setting of the filter screen, the gas entering the air inlet pipe 4 can be filtered to ensure the combustion effect of the gas;

[0043] In this embodiment, the gas detector 3 includes:

[0044] Sensor: Responsible for detecting gas concentration. Common sensors include electrochemical sensors, thermal conductivity sensors, infrared sensors, catalytic combustion sensors, etc.

[0045] Display: responsible for converting the detected gas concentration into readable data. In this embodiment, the display is a digital display.

[0046] Shell: The shell of the gas detector 3 is made of materials with good performance such as waterproof, dustproof and shockproof, so that it can be used in various environments;

[0047] Furthermore, the gas detector 3, the solenoid valve 6 and the pressure sensor 7 are all electrically connected to the controller. By using the setting of the controller, the gas detector 3, the solenoid valve 6 and the pressure sensor 7 can be centrally controlled, which greatly improves the overall linkage and makes the gas detector 3, the solenoid valve 6 and the pressure sensor 7 respond faster;

[0048] In this embodiment, the pressure regulator 8 is composed of the following parts: an air inlet, a flow sensor, a pressure regulating valve, and an air outlet. The flow sensor is used to detect the gas flow through the air inlet; the pressure regulating valve is used to adjust the ratio of the gas flow to achieve the purpose of pressure regulation; the air outlet is used to discharge the gas after pressure regulation from the pressure regulator. When the gas enters the pressure regulator 8, it will be introduced into the pressure regulator 8 through the air inlet. Then, the flow sensor will detect the gas flow through the air inlet and feed back the detection result to the pressure regulating valve. The pressure regulating valve adjusts the size of the gas flow according to the feedback detection result, thereby realizing the control and stabilization of the gas supply. Finally, the gas after pressure regulation will be discharged from the air outlet to the outlet pipe 5. This is a mature existing technology and will not be described in detail here.

[0049] The protection assembly 10 includes a support shaft 11, a blocking plate 12, a positioning seat 13, a linkage rod 14 and a guide box 15. The top of the vent 9 is rotatably connected to the support shaft 11, the middle of the support shaft 11 is fixedly connected to the blocking plate 12, the end of the blocking plate 12 away from the support shaft 11 is fixedly connected to the positioning seat 13, one end of the positioning seat 13 is rotatably connected to the linkage rod 14, both ends of the top of the protection box 1 are fixedly connected to the guide boxes 15, and the two guide boxes 15 are respectively located at two diagonal corners of the top of the protection box 1, and the top of the guide box 15 is fixedly connected There is an air injection pipe 16, and the end of the air injection pipe 16 away from the guide box 15 is also connected to the protection box 1, the end of the guide box 15 away from the air injection pipe 16 is slidably connected with a displacement rod 17, the end of the displacement rod 17 located inside the guide box 15 is fixedly connected with a push piece 18, the end of the displacement rod 17 away from the push piece 18 is fixedly connected with an assembly ear 19, and the end of the linkage rod 14 away from the positioning seat 13 is also rotatably connected to the assembly ear 19, and a transmission assembly 20 is provided in the middle of the top of the protection box 1, and the transmission assembly 20 is used to cooperate with the linkage rod 14 to drive the blocking plate 12 to flip;

[0050] Furthermore, both ends of the top of the vent window 9 are fixedly connected with support ears, and the support shaft 11 is rotatably connected between the two support ears. By using the setting of the support ears, the support shaft 11 can be stably supported, thereby ensuring the flipping effect of the blocking plate 12;

[0051] Here, a sealing strip is fixedly connected to the outer side of the push piece 18, and a transition fit is formed between the sealing strip and the inner wall of the guide box 15. The setting of the sealing strip can seal the gap between the push piece 18 and the guide box 15 to prevent uncontrolled leakage of gas. In this embodiment, the sealing strip is made of rubber.

[0052] The transmission assembly 20 includes a transmission seat 21, a transmission shaft 22, a threaded section 23 and an extension frame 24. The transmission seat 21 is fixedly connected to the middle of the top of the protection box 1. The transmission shaft 22 is rotatably connected to the inner side of the transmission seat 21. Threaded sections 23 are provided at both ends of the transmission shaft 22, and the threads of the two threaded sections 23 are opposite. A transmission motor 25 is fixedly connected to the middle of the transmission seat 21. A transmission bevel gear 26 is fixedly connected to the output end of the transmission motor 25 and the middle of the transmission shaft 22, and the two transmission bevel gears 26 are meshed and connected. The outer sides of the two threaded sections 23 are threadedly connected to displacement plates 27, and the two displacement rods 17 are respectively fixedly connected to one end of the displacement plate 27. Warning components 28 are provided at both ends of the transmission seat 21.

[0053] In this embodiment, the controller is also electrically connected to the transmission motor 25;

[0054] In detail, a linear guide rod is fixedly connected to the inner side of the transmission seat 21, and the displacement plate 27 is also slidably connected to the outer side of the linear guide rod. An extension frame 24 is fixedly connected to the middle part of the transmission seat 21, and the transmission motor 25 is connected to the top of the extension frame 24 by bolts. By setting the linear guide rod, the displacement of the displacement plate 27 can be stably guided to prevent the displacement plate 27 from rotating with the threaded segment 23.

[0055] Embodiment 2:

[0056] See also Figure 1-8 The present embodiment provides a technical solution based on the first embodiment: the warning component 28 includes a linkage shaft 29, an acceleration shaft 30, a transmission spur gear 31, an acceleration spur gear 32, an eccentric plate 33 and a guide column 34, both ends of the transmission seat 21 are rotatably connected with the linkage shaft 29 and the acceleration shaft 30, and the linkage shaft 29 is fixedly connected to the transmission shaft 22, the outer side of the linkage shaft 29 is fixedly connected with the transmission spur gear 31, the outer side of the acceleration shaft 30 is fixedly connected with the acceleration spur gear 32, and the acceleration spur gear 32 is meshed with the transmission spur gear 31, and the acceleration An eccentric plate 33 is fixedly connected to one end of the speed shaft 30, and a guide column 34 is fixedly connected to one end of the eccentric plate 33 away from the acceleration shaft 30. Positioning plates 35 are fixedly connected to the tops of both ends of the transmission seat 21. A stabilizing shaft 36 is rotatably connected to the middle of the positioning plate 35. A knocking plate 37 is fixedly connected to one end of the stabilizing shaft 36. A linkage groove 38 is provided in the middle of the knocking plate 37, and the guide column 34 is also movably connected to the inside of the linkage groove 38. Warning frames 39 are fixedly connected to both ends of the top of the protection box 1, and two knocking plates 37 are respectively located inside the warning frames 39;

[0057] In this embodiment, both ends of the warning frame 39 are fixedly connected with a bell plate, which is a hollow structure. Through the setting of the bell plate, when the knocking plate 37 contacts the bell plate, the bell plate can vibrate and make a sound. The material of the bell plate can be copper. The specific principle is similar to that of a bell, which will not be repeated here.

[0058] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0059] Working principle: First, the air inlet pipe 4 and the air outlet pipe 5 are connected to the external pipeline. Before the gas is sent into the air outlet pipe 5 through the air inlet pipe 4, the pressure regulator 8 can be used to regulate the pressure of the gas. The pressure-regulated gas will be supplied to the user through the air outlet pipe 5, and the gas concentration in the protection box 1 can be detected in real time by the gas detector 3. When the concentration is high, the controller sends an electrical signal to the solenoid valve 6 and the transmission bevel gear 26, prompting the solenoid valve 6 to close, and the air inlet pipe 4 and the air outlet pipe 5 are blocked to prevent the gas from continuing to leak out;

[0060] At the same time, the controller controls the transmission motor 25 to start, and cooperates with the setting of the two transmission bevel gears 26 to transmit the power of the transmission motor 25, so as to cause the transmission shaft 22 to rotate. Cooperating with the setting of the two threaded sections 23 with opposite rotation directions on the transmission shaft 22, the two displacement plates 27 can be driven to approach each other on the threaded sections 23, thereby pulling the displacement rod 17. Since the linkage rod 14 is connected between the positioning seat 13 and the assembly ear 19, when the assembly ear 19 follows the displacement of the displacement rod 17, the positioning seat 13 can be pulled by the linkage rod 14, so as to cause The blocking plate 12 rotates under the support of the supporting shaft 11, and the blocking of the vent window 9 is released, so that the gas in the protection box 1 can drift to the outside of the protection box 1, and the external gas can enter the protection box 1 to neutralize the gas, and the displacement of the displacement rod 17 can change the displacement of the push piece 18 inside the guide box 15, and then the push piece 18 can be used to inject the gas in the guide box 15 into the protection box 1 through the gas injection pipe 16, so as to accelerate the flow of the gas in the protection box 1 and reduce the gas concentration in the protection box 1;

[0061] And when the transmission shaft 22 rotates, the connection between the linkage shaft 29 and the transmission shaft 22 is coordinated so that the linkage shaft 29 can rotate with the transmission shaft 22, and the acceleration spur gear 32 is driven by the transmission spur gear 31, and then the eccentric plate 33 can be driven to rotate through the acceleration shaft 30. And because the guide column 34 is also movably connected to the inside of the linkage groove 38, when the eccentric plate 33 rotates, the displacement of the guide column 34 in the linkage groove 38 can drive the knocking plate 37 to swing under the support of the stabilization shaft 36, so as to knock the warning frame 39 through the knocking plate 37 to remind personnel.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leakage protection gas pressure regulating box, characterized in that: include: A protection box (1), wherein both ends of one side of the protection box (1) are provided with box doors (2), a gas detector (3) is fixedly connected to the bottom end of the interior of the protection box (1), and a controller is fixedly connected to the inner wall of the protection box (1); An air supply component, the air supply component comprising an air inlet pipe (4) and an air outlet pipe (5), the air inlet pipe (4) and the air outlet pipe (5) are both fixedly connected to the inside of the protection box (1), the air inlet pipe (4) and the air outlet pipe (5) are both provided with a solenoid valve (6) and a pressure sensor (7), and a pressure regulator (8) is provided at one end of the air inlet pipe (4) and the air outlet pipe (5) close to each other; Two ventilation windows (9), the two ventilation windows (9) being fixedly connected to the tops of both ends of the protection box (1) respectively; A protection component (10) is arranged between the top of the protection box (1) and the ventilation window (9), and the protection component (10) is used to cooperate with the ventilation window (9) to reduce the concentration of gas in the protection box (1).

2. A leakage protection gas pressure regulating box according to claim 1, characterized in that: The protection component (10) comprises a supporting shaft (11), a blocking plate (12), a positioning seat (13), a linkage rod (14) and a guide box (15); the top of the ventilating window (9) is rotatably connected to the supporting shaft (11); the middle of the supporting shaft (11) is fixedly connected to the blocking plate (12); one end of the blocking plate (12) away from the supporting shaft (11) is fixedly connected to the positioning seat (13); one end of the positioning seat (13) is rotatably connected to the linkage rod (14); both ends of the top of the protection box (1) are fixedly connected to the guide boxes (15), and the two guide boxes (15) are respectively located at two diagonal positions on the top of the protection box (1); the top of the guide boxes (15) is fixedly connected to An air injection pipe (16) is provided, and one end of the air injection pipe (16) away from the guide box (15) is also connected to the protection box (1); one end of the guide box (15) away from the air injection pipe (16) is slidably connected to a displacement rod (17); one end of the displacement rod (17) located inside the guide box (15) is fixedly connected to a push plate (18); one end of the displacement rod (17) away from the push plate (18) is fixedly connected to an assembly ear (19); and one end of the linkage rod (14) away from the positioning seat (13) is also rotatably connected to the assembly ear (19); a transmission component (20) is provided in the middle of the top end of the protection box (1), and the transmission component (20) is used to cooperate with the linkage rod (14) to drive the sealing plate (12) to flip.

3. A leakage protection gas pressure regulating box according to claim 2, characterized in that: The transmission assembly (20) comprises a transmission seat (21), a transmission shaft (22), a threaded section (23) and an extension frame (24); the transmission seat (21) is fixedly connected to the middle of the top of the protection box (1); the transmission shaft (22) is rotatably connected to the inner side of the transmission seat (21); threaded sections (23) are provided at both ends of the transmission shaft (22); and the threads of the two threaded sections (23) are in opposite directions; a transmission motor (25) is fixedly connected to the middle of the transmission seat (21); a transmission bevel gear (26) is fixedly connected to the output end of the transmission motor (25) and the middle of the transmission shaft (22); and the two transmission bevel gears (26) are meshedly connected; the outer sides of the two threaded sections (23) are threadedly connected to displacement plates (27); and the two displacement rods (17) are respectively fixedly connected to one end of the displacement plate (27); and warning assemblies (28) are provided at both ends of the transmission seat (21).

4. A leakage protection gas pressure regulating box according to claim 3, characterized in that: The warning component (28) comprises a linkage shaft (29), an acceleration shaft (30), a transmission spur gear (31), an acceleration spur gear (32), an eccentric plate (33) and a guide column (34); both ends of the transmission seat (21) are rotatably connected with the linkage shaft (29) and the acceleration shaft (30); the linkage shaft (29) is fixedly connected to the transmission shaft (22); the outer side of the linkage shaft (29) is fixedly connected to the transmission spur gear (31); the outer side of the acceleration shaft (30) is fixedly connected to the acceleration spur gear (32); the acceleration spur gear (32) is meshed with the transmission spur gear (31); one end of the acceleration shaft (30) is fixedly connected to the transmission shaft (22); An eccentric plate (33) is provided, and one end of the eccentric plate (33) away from the acceleration shaft (30) is fixedly connected to a guide column (34), and the tops of the two ends of the transmission seat (21) are fixedly connected to positioning plates (35), and the middle part of the positioning plate (35) is rotatably connected to a stabilizing shaft (36), and one end of the stabilizing shaft (36) is fixedly connected to a knocking plate (37), and a linkage groove (38) is provided in the middle part of the knocking plate (37), and the guide column (34) is also movably connected to the inside of the linkage groove (38), and both ends of the top of the protection box (1) are fixedly connected to warning frames (39), and the two knocking plates (37) are respectively located inside the warning frames (39).

5. The leakage protection gas pressure regulating box according to claim 1, characterized in that: The bottom ends of the air inlet pipe (4) and the air outlet pipe (5) both pass through the protective box (1), and the bottom ends of the air inlet pipe (4) and the air outlet pipe (5) are both fixedly connected to flanges, and the interior of the air inlet pipe (4) is fixedly connected to a filter screen.

6. A leakage protection gas pressure regulating box according to claim 1, characterized in that: The gas detector (3), the solenoid valve (6) and the pressure sensor (7) are all electrically connected to the controller.

7. A leakage protection gas pressure regulating box according to claim 2, characterized in that: Both ends of the top of the vent window (9) are fixedly connected with support ears, and the support shaft (11) is rotatably connected between the two support ears.

8. The leakage protection gas pressure regulating box according to claim 2, characterized in that: The outer side of the push piece (18) is fixedly connected with a sealing strip, and the sealing strip and the inner wall of the guide box (15) are in transitional fit.

9. A leakage protection gas pressure regulating box according to claim 3, characterized in that: A linear guide rod is fixedly connected to the inner side of the transmission seat (21), and the displacement plate (27) is also slidably connected to the outer side of the linear guide rod. An extension frame (24) is fixedly connected to the middle of the transmission seat (21), and the transmission motor (25) is connected to the top of the extension frame (24) by bolts.

10. A leakage protection gas pressure regulating box according to claim 4, characterized in that: Both ends of the warning frame (39) are fixedly connected with a bell plate, and the bell plate is a hollow structure.

Images