Acousto-optic detection device for air tightness

Abstract

The invention discloses an air tightness acousto-optic detection device which comprises a device shell, an auxiliary mechanism, a separation mechanism, a filtering mechanism, a control panel and an alarm lamp, pressure maintaining qualified time T is set through the control panel, when the pressure in a pipeline system meets the requirement, an electromagnetic valve is closed, the time T1 at the moment is recorded, and the alarm lamp is started. The electronic barometer in the same-pressure bin can sense the air pressure change in the pipeline system at any time, when the pressure in the pipeline system is lower than the requirement, the time T2 at the moment is recorded immediately, the actual pressure maintaining time (T2-T1) is calculated, the actual pressure maintaining time (T2-T1) is compared with the pressure maintaining qualified time T, whether the pressure is qualified or unqualified is improved through the alarm lamp, and the alarm lamp can give an alarm. When the time T passes from T1, namely the actual pressure maintaining time is larger than the pressure maintaining qualified time T, the alarm lamp is directly turned on to be green, and the device can automatically stop stamping after stamping of the pipeline system is completed through the control panel, meanwhile, whether the pressure maintaining time is qualified or not can be automatically judged, corresponding prompts can be given in time, and the detection efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to an airtightness sound and light detection device. Background Art

[0002] The subway air brake system is a core component to ensure the safe and reliable operation of subway trains. It achieves smooth deceleration and timely parking of trains by precisely controlling the flow of compressed air, meeting the needs of frequent start-stop and high-density operation of subways. Therefore, in order to ensure the reliable and stable operation of air brakes, it is necessary to control and test the air tightness of the entire brake pipe system during the production and assembly of subway vehicles to ensure that the sealing of the brake system is intact. According to the technical requirements for the production and assembly of subway vehicles in the industry, the underframe pipeline must be tested for air tightness after assembly, and the air tightness between the pipeline and the pipe joints and the brake equipment must be tested. The existing test method is to connect an external air tightness test trolley after the pipeline system is assembled, inflate the pipeline system until the pressure is stable at (9.0±0.20) bar, then cut off the air source, start timing, and calculate whether the pressure drop exceeds 0.10 bar based on the initial pressure value and the pressure value after 30 minutes; if not, it is qualified. If it exceeds, it is unqualified, and then use a leak detector to find the leak in the pipeline and repair it, and then re-perform the pressure maintenance test until it is qualified.

[0003] During the pressure test, the worker needs to keep an eye on the pressure gauge during the inflation process of the airtight vehicle, and then manually cut off the air source after the pressure rises to (9.0±0.20) bar. The pressure test cycle is 30 minutes. Generally, after the inflation, the worker will carry out other processes, and then check the reading of the pressure gauge after 30 minutes. If it is unqualified, it needs to be repaired. However, in the actual operation process, we will find that in some cases, the air pressure leakage may exceed the allowable range within ten minutes or a few minutes after inflation. In this case, if you have to wait 30 minutes before checking the air pressure indication, it will cause a lot of waiting time. The existing airtight detection vehicle is poorly intelligent, and the inflation detection process will take up a lot of employees' time, which is not conducive to assembly line operation and improving detection efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an airtight sound and light detection device to solve the technical problems in the prior art that the airtight detection vehicle has a poor degree of intelligence, the inflation detection process takes up a lot of employees' time, is not conducive to assembly line operations, and is not conducive to improving detection efficiency.

[0005] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0006] An airtightness sound and light detection device, comprising:

[0007] Auxiliary mechanism, a purification chamber is provided in the mechanism shell, a shell opening is provided at the upper end of the purification chamber through the mechanism shell, an oil collecting ring is provided at the lower end of the mechanism shell, a supporting circular plate is rotatably provided on the bottom surface of the mechanism shell, a driving motor for driving the supporting circular plate to rotate is provided on the mechanism shell, a shunt pipe 1 and a shunt pipe 2 are embedded and fixedly connected through the side walls of the mechanism shell and the oil collecting ring, one end of the shunt pipe 1 and the shunt pipe 2 are both provided at the side end of the supporting circular plate, and the other ends of the shunt pipe 1 and the shunt pipe 2 are both provided at the outer side of the mechanism shell and are connected with a connecting pipe 2;

[0008] The separation mechanism comprises an upper fixing ring and a lower fixing ring, the upper fixing ring and the lower fixing ring are arranged in parallel, and separation blades are evenly distributed and fixedly connected between the upper fixing ring and the lower fixing ring. The separation mechanism is arranged on the supporting circular plate, and one end of the shunt pipe 1 and the shunt pipe 2 are both arranged below the lower fixing ring;

[0009] The filtering mechanism comprises a mechanism cover plate, which is arranged at the shell opening of the mechanism shell, a filter bin is fixedly connected to the lower end surface of the mechanism cover plate, a filter chamber is provided in the filter bin, a drying layer and an activated carbon layer are respectively provided in the filter chamber, a negative pressure pump is embedded through and fixedly connected to the mechanism cover plate, an air inlet end of the negative pressure pump is provided in the filter chamber, a mechanism connecting pipe is connected to the air outlet end of the negative pressure pump, an air outlet pipe is provided at the other end of the mechanism connecting pipe, a pressure chamber is provided between the mechanism connecting pipe and the air outlet pipe, a pressure chamber is provided in the pressure chamber, and an electronic barometer is fixedly connected to the inner wall of the pressure chamber;

[0010] The device shell, the lower half of the auxiliary mechanism is arranged in the device shell, an air compressor is fixedly connected in the device shell, the air outlet end of the air compressor is connected with the second connecting pipe, a connecting pipe is arranged on the air inlet end of the air compressor, one end of the connecting pipe is connected with the air inlet end of the air compressor, and the other end of the connecting pipe passes through the device shell and is arranged outside the device shell, and a solenoid valve is fixedly installed on the mechanism connecting pipe.

[0011] As a further solution of the present invention: a docking end one is symmetrically distributed and fixedly connected at the opening edge of the shell opening, a docking end two corresponding to the docking end one is symmetrically distributed and fixedly connected on the lower end surface of the mechanism cover plate, a threaded hole is opened on the docking end one, a connecting through hole one is penetrated through the docking end two, a connecting bolt one is threadedly connected between the docking end one and the docking end two, and the connecting bolt one penetrates the connecting through hole one on the docking end two and is threadedly connected to the threaded hole on the docking end one.

[0012] As a further solution of the present invention: the driving motor is embedded through and fixedly connected to the bottom surface of the mechanism housing, a driving shaft is fixedly connected to the driving end of the driving motor, the driving shaft is coaxially fixedly connected to the bottom surface of the supporting circular plate, a fixing column is fixedly connected to the middle of the upper end surface of the supporting circular plate, a threaded connection hole is opened on the upper end surface of the fixing column, and sleeve columns are evenly distributed in a ring on the side end of the fixing column, and the sleeve columns are fixedly connected to the supporting circular plate.

[0013] As a further solution of the present invention: a sleeve ring is coaxially sleeved in the upper fixing ring and the lower fixing ring respectively, a connecting plate is fixedly connected between the sleeve ring and the inner end faces of the upper fixing ring and the lower fixing ring, sleeve holes are evenly distributed in annular shapes and penetrate through the end faces of the sleeve ring, the sleeve columns are respectively sleeved in the sleeve holes, the fixing columns are sleeved in the sleeve rings, the lower fixing ring is arranged on the supporting circular plate, and the upper end face of the sleeve ring in the upper fixing ring is flush with the upper end face of the fixing column.

[0014] As a further solution of the present invention: a limiting fixing plate is arranged on the end face of the sleeve ring inside the upper fixing ring and the fixing column, a connecting through hole two is penetrated through the limiting fixing plate, a connecting threaded bolt two is arranged between the limiting fixing plate and the fixing column, the connecting threaded bolt two penetrates through the connecting through hole two on the limiting fixing plate and is threadedly connected with the threaded connecting hole on the fixing column.

[0015] As a further solution of the present invention: two drying layers and one activated carbon layer are respectively arranged in the filter chamber, and the two drying layers are respectively arranged on the upper and lower sides of the activated carbon layer, the lower end of the pressure bin is connected with the mechanism connecting pipe, and the upper end of the pressure bin is connected with the air outlet pipe, a barometer is fixedly installed on the mechanism connecting pipe, and an air inlet is opened on the bottom surface of the filter bin, and the air inlet is connected with the inside of the mechanism shell.

[0016] As a further solution of the present invention: a control panel and an alarm light are fixedly connected to the device housing, and the solenoid valve, the alarm light and the electronic barometer are electrically connected to the control panel respectively.

[0017] As a further solution of the present invention: a plurality of oil collecting racks are evenly distributed in an annular shape and fixedly connected on the inner end surface of the oil collecting ring.

[0018] Beneficial effects of the present invention:

[0019] 1. The control panel of the present invention can manually set the qualified pressure holding time T. When the pressure in the pipeline system reaches the requirement, the control panel closes the solenoid valve on the mechanism connecting pipe and records the time T1 at this time. The electronic barometer in the pressure chamber can always sense the pressure change in the pipeline system. When the pressure in the pipeline system is lower than the requirement, the time T2 at this time is immediately recorded, and the actual pressure holding time (T2-T1) is calculated. The actual pressure holding time (T2-T1) is compared with the qualified pressure holding time T. If (T2-T1) is less than T, an alarm is triggered. The light turns red and an alarm is sounded immediately. If (T2-T1) is greater than and equal to T, the alarm light turns green to indicate that it has passed. When T time has passed since T1, that is, the actual pressure holding time is greater than the qualified pressure holding time T, and the air pressure in the pipeline system is still at a normal level, the green light will be turned on directly to indicate that it has passed. The device can automatically stop stamping after the stamping of the pipeline system is completed by setting a control panel. At the same time, it can automatically determine whether the pressure holding time is qualified and give corresponding prompts in time, which improves the automation of the device, is conducive to improving the detection efficiency, and is convenient for staff to use;

[0020] 2. When the present invention is in use, the connecting pipe of the air compressor is connected to the workshop air bag, and then the pipeline system is connected to the air outlet pipe. The compressed air is transported to the mechanism housing through the air compressor through the connecting pipe 2. The compressed air is divided into the mechanism housing through the shunt pipe 1 and the shunt pipe 2 connected to the connecting pipe 2. The distribution of the compressed air in the mechanism housing is more uniform through the shunt pipe 1 and the shunt pipe 2, making it easier for the compressed air to enter the separation mechanism for separation and purification, and at the same time it is beneficial to improve the purification effect of the separation mechanism on the compressed air, and start the negative pressure pump. The negative pressure air is sucked upward and the driving motor is started to drive the separation mechanism to rotate. The separation blades of the separation mechanism can throw the oil and gas in the compressed air and other large-particle impurities to the surrounding side of the inner shell of the mechanism. A number of oil collecting racks are evenly distributed and fixedly connected in an annular shape on the inner end face of the oil collecting ring. The oil collecting rack is provided on the oil collecting ring, which is beneficial to increase the adhesion area of ​​the oil and gas and facilitates the collection of the oil and gas. When the oil collecting teeth on the oil collecting ring are attached with grease, it is beneficial to the adhesion of large-particle impurities and prevents the compressed air from disturbing back and forth in the mechanism shell and affecting the impurity removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 4 The three-dimensional structure diagram of the auxiliary mechanism of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 5 The three-dimensional structure diagram of the auxiliary mechanism of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 6 It is a structural schematic diagram of the connection relationship between the auxiliary mechanism and the filtering mechanism of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the connection relationship between the auxiliary mechanism and the separation mechanism of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the separation mechanism of the present invention;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the separation mechanism of the present invention;

[0031] Fig.10 The present invention Figure 2 The enlarged structural diagram at A in the middle;

[0032] Fig.11 The present invention Figure 4 Enlarged structural diagram at B in the middle.

[0033] In the figure: 1. device housing; 2. auxiliary mechanism; 21. mechanism housing; 22. docking end 1; 23. shunt pipe 1; 24. shunt pipe 2; 25. connecting pipe 1; 26. connecting pipe 2; 27. mounting bracket; 28. drive motor; 29. ​​oil collecting ring; 210. supporting circular plate; 211. sleeve column; 212. fixing column; 213. threaded connection hole; 3. separation mechanism; 31. sleeve ring; 32. sleeve hole; 33. connecting plate ; 34. Upper fixing ring; 35. Lower fixing ring; 36. Separation blades; 4. Filter mechanism; 41. Mechanism cover; 42. Butt end two; 43. Negative pressure pump; 44. Filter bin; 45. Air inlet; 46. Filter chamber; 47. Drying layer; 48. Activated carbon layer; 49. Connecting pipe; 410. Barometer; 411. Pressure bin; 412. Exhaust pipe; 5. Air pressurizer; 6. Universal wheel; 7. Control panel; 8. Alarm light. DETAILED DESCRIPTION

[0034] 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.

[0035] like Figure 1-Figure 10 As shown, an airtightness sound and light detection device comprises:

[0036] Auxiliary mechanism 2, a purification chamber is provided in the mechanism shell 21, the upper end of the purification chamber penetrates the mechanism shell 21 to form a shell opening, an oil collecting ring 29 is provided in the lower end of the mechanism shell 21, a supporting circular plate 210 is rotatably provided on the bottom surface of the mechanism shell 21, a driving motor 28 for driving the supporting circular plate 210 to rotate is provided on the mechanism shell 21, a shunt pipe 1 23 and a shunt pipe 2 24 are embedded and fixedly connected through the side walls of the mechanism shell 21 and the oil collecting ring 29, one end of the shunt pipe 1 23 and the shunt pipe 2 24 are both provided at the side end of the supporting circular plate 210, and the other ends of the shunt pipe 1 23 and the shunt pipe 2 24 are both provided at the outer side of the mechanism shell 21 and are connected with a connecting pipe 2 26;

[0037] The separation mechanism 3 includes an upper fixing ring 34 and a lower fixing ring 35, which are arranged in parallel with each other, and separation blades 36 are evenly distributed and fixedly connected in an annular manner between the upper fixing ring 34 and the lower fixing ring 35. The separation mechanism 3 is arranged on the supporting circular plate 210, and one end of the shunt pipe 1 23 and the shunt pipe 2 24 are both arranged below the lower fixing ring 35;

[0038] The filter mechanism 4 includes a mechanism cover plate 41, which is arranged at the shell opening of the mechanism shell 21. A filter bin 44 is fixedly connected to the lower end surface of the mechanism cover plate 41. A filter chamber 46 is provided in the filter bin 44. A drying layer 47 and an activated carbon layer 48 are respectively provided in the filter chamber 46. A negative pressure pump 43 is embedded and fixedly connected to the mechanism cover plate 41. The air inlet end of the negative pressure pump 43 is arranged in the filter chamber 46. The air outlet end of the negative pressure pump 43 is connected to a mechanism connecting pipe 49. The other end of the mechanism connecting pipe 49 is provided with an air outlet pipe 412. A pressure bin 411 is provided between the mechanism connecting pipe 49 and the air outlet pipe 412.

[0039] The device housing 1, the lower half of the auxiliary mechanism 2 is arranged in the device housing 1, the air compressor 5 is fixedly connected in the device housing 1, the air outlet end of the air compressor 5 is connected with the connecting pipe 26, and a connecting pipe is arranged on the air inlet end of the air compressor 5, one end of the connecting pipe is connected with the air inlet end of the air compressor 5, and the other end of the connecting pipe penetrates the device housing 1 and is arranged on the outside of the device housing 1, and an electromagnetic valve is fixedly installed on the mechanism connecting pipe 49.

[0040] A docking end 22 is symmetrically distributed and fixedly connected at the opening edge of the shell opening, and a docking end 22 corresponding to the docking end 22 is symmetrically distributed and fixedly connected on the lower end surface of the mechanism cover 41. A threaded hole is opened on the docking end 22, and a connecting through hole 1 is penetrated through the docking end 42. A connecting bolt 1 is threadedly connected between the docking end 22 and the docking end 42, and the connecting bolt 1 penetrates the connecting through hole 1 on the docking end 42 and is threadedly connected to the threaded hole on the docking end 22.

[0041] The driving motor 28 is embedded through and fixedly connected to the bottom surface of the mechanism housing 21. A driving shaft is fixedly connected to the driving end of the driving motor 28. The driving shaft is coaxially fixedly connected to the bottom surface of the supporting circular plate 210. A fixing column 212 is fixedly connected to the middle of the upper end surface of the supporting circular plate 210. A threaded connection hole 213 is provided on the upper end surface of the fixing column 212. Socket columns 211 are evenly distributed in an annular manner on the side end of the fixing column 212. The socket columns 211 are fixedly connected to the supporting circular plate 210. Four socket columns 211 are arranged.

[0042] A sleeve ring 31 is coaxially sleeved in the upper fixing ring 34 and the lower fixing ring 35, respectively. A connecting plate 33 is fixedly connected between the sleeve ring 31 and the inner end faces of the upper fixing ring 34 and the lower fixing ring 35. Sleeve holes 32 are evenly distributed in an annular shape and penetrate through the end face of the sleeve ring 31. There are four sleeve holes 32. The sleeve columns 211 are respectively sleeved in the sleeve holes 32. The fixing columns 212 are sleeved in the sleeve ring 31. The lower fixing ring 35 is set on the supporting circular plate 210. The upper end face of the sleeve ring 31 in the upper fixing ring 34 is flush with the upper end face of the fixing column 212.

[0043] A limiting fixing plate is provided on the end surface of the sleeve ring 31 in the upper fixing ring 34 and the fixing column 212, and a connecting through hole 2 is penetrated on the limiting fixing plate. A connecting threaded bolt 2 is provided between the limiting fixing plate and the fixing column 212, and the connecting threaded bolt 2 penetrates the connecting through hole 2 on the limiting fixing plate and is threadedly connected with the threaded connecting hole 213 on the fixing column 212. The setting of the limiting fixing plate facilitates the disassembly and assembly of the separation mechanism 3, which is beneficial to the maintenance and cleaning of the separation mechanism 3.

[0044] Two drying layers 47 and an activated carbon layer 48 are respectively arranged in the filter chamber 46, and the two drying layers 47 are respectively arranged on the upper and lower sides of the activated carbon layer 48. The lower end of the same-pressure bin 411 is connected with the mechanism connecting pipe 49, and the upper end of the same-pressure bin 411 is connected with the air outlet pipe 412. A same-pressure chamber is opened in the same-pressure bin 411, and an electronic barometer is fixedly connected to the inner wall of the same-pressure chamber. A barometer 410 is fixedly installed on the mechanism connecting pipe 49. An air inlet 45 is opened on the bottom surface of the filter bin 44, and the air inlet 45 is connected to the inside of the mechanism shell 21.

[0045] A control panel 7 and an alarm light 8 are fixedly connected to the device housing 1 , and the solenoid valve, the alarm light 8 and the electronic barometer are electrically connected to the control panel 7 .

[0046] In some specific embodiments, a plurality of oil collecting racks are evenly distributed in an annular shape and fixedly connected on the inner end surface of the oil collecting ring 29 .

[0047] In some specific embodiments, universal wheels 6 are symmetrically distributed and fixedly connected near the four corners on the bottom surface of the device housing 1 .

[0048] There are two shunt pipes 24 , which are respectively arranged on both sides of the supporting circular plate 210 . A connecting pipe 1 25 is arranged between the two shunt pipes 24 and the connecting pipe 2 26 . The two shunt pipes 24 are connected to each other through the connecting pipe 1 25 and the connecting pipe 2 26 .

[0049] In some specific implementation schemes, a mounting bracket 27 is fixedly connected to the bottom surface of the mechanism housing 21 , and the mounting bracket 27 is fixedly connected to the bottom surface of the device housing 1 .

[0050] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0051] When in use, the connecting pipe of the air compressor 5 is connected to the workshop air bag, and then the pipeline system is connected to the air outlet pipe 412. The compressed air is transported to the mechanism housing 21 through the air compressor 5 through the connecting pipe 2 26. The compressed air is divided into the mechanism housing 21 through the diverter pipe 1 23 and the diverter pipe 2 24 connected to the connecting pipe 2 26. The diversion of the diverter pipe 1 23 and the diverter pipe 2 24 makes the distribution of the compressed air in the mechanism housing 21 more uniform, making it easier for the compressed air to enter the separation mechanism 3 for separation and purification, and at the same time it is beneficial to improve the purification effect of the separation mechanism 3 on the compressed air, and start the negative pressure pump The machine 43 sucks the negative pressure air upward and starts the driving motor 28 to drive the separation mechanism 3 to rotate. The separation blades 36 of the separation mechanism 3 can throw the oil and gas in the compressed air and other large-particle impurities to the peripheral side of the inner shell 21 of the mechanism. A plurality of oil collecting racks are evenly distributed and fixedly connected in an annular manner on the inner end surface of the oil collecting ring 29. The oil collecting racks are arranged on the oil collecting ring 29 to increase the adhesion area of ​​the oil and gas, which is convenient for collecting the oil and gas. When the oil collecting teeth arranged on the oil collecting ring 29 are attached with grease, it is conducive to the adhesion of large-particle impurities, and prevent the compressed air from disturbing back and forth in the mechanism shell 21, which affects the impurity removal effect.

[0052] First, the pressure holding qualified time T is manually set through the control panel 7. When the pressure in the pipeline system reaches the requirement, the control panel 7 closes the solenoid valve on the mechanism connecting pipe 49 and records the time T1 at this time. The electronic barometer in the pressure chamber 411 can always sense the air pressure changes in the pipeline system. When the pressure in the pipeline system is lower than the requirement, the time T2 at this time is immediately recorded, and the actual pressure holding time (T2-T1) is calculated, and the actual pressure holding time (T2-T1) is compared with the pressure holding qualified time T. If (T2-T1) is less than T, the alarm light 8 lights up red and an alarm is immediately sounded. If (T2-T1) is greater than and equal to T, the alarm light 8 lights up green to indicate that it has passed. By setting the control panel 7, the device can automatically stop stamping after the stamping of the pipeline system is completed. At the same time, it can automatically determine whether the pressure holding time is qualified and make corresponding prompts in time, thereby improving the degree of automation of the device, which is conducive to improving the detection efficiency and is convenient for the staff to use.

[0053] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An airtight sound and light detection device, characterized in that: include: An auxiliary mechanism (2), wherein a purification chamber is provided in a mechanism housing (21), and a housing opening is provided at the upper end of the purification chamber through the mechanism housing (21), an oil collecting ring (29) is provided at the lower end of the mechanism housing (21), a supporting circular plate (210) is rotatably provided on the bottom surface of the mechanism housing (21), and a driving motor (28) for driving the supporting circular plate (210) to rotate is provided on the mechanism housing (21), a shunt pipe 1 (23) and a shunt pipe 2 (24) are embedded and fixedly connected through the side walls of the mechanism housing (21) and the oil collecting ring (29), one end of the shunt pipe 1 (23) and the shunt pipe 2 (24) are both provided at the side end of the supporting circular plate (210), and the other end of the shunt pipe 1 (23) and the shunt pipe 2 (24) are both provided at the outer side of the mechanism housing (21) and are connected to a connecting pipe 2 (26); The separation mechanism (3) comprises an upper fixing ring (34) and a lower fixing ring (35), wherein the upper fixing ring (34) and the lower fixing ring (35) are arranged in parallel, and separation blades (36) are evenly distributed in an annular shape and fixedly connected between the upper fixing ring (34) and the lower fixing ring (35), and the separation mechanism (3) is arranged on a supporting circular plate (210), and one end of the shunt pipe 1 (23) and the shunt pipe 2 (24) are both arranged below the lower fixing ring (35); The filter mechanism (4) comprises a mechanism cover plate (41), the mechanism cover plate (41) being arranged at the shell opening of the mechanism shell (21), a filter chamber (44) being fixedly connected to the lower end surface of the mechanism cover plate (41), a filter chamber (46) being provided in the filter chamber (44), a drying layer (47) and an activated carbon layer (48) being respectively provided in the filter chamber (46), a negative pressure pump (47) being embedded through and fixedly connected to the mechanism cover plate (41), 43), the air inlet end of the negative pressure pump (43) is arranged in the filter chamber (46), the air outlet end of the negative pressure pump (43) is connected with a mechanism connecting pipe (49), the other end of the mechanism connecting pipe (49) is provided with an air outlet pipe (412), a pressure chamber (411) is arranged between the mechanism connecting pipe (49) and the air outlet pipe (412), a pressure chamber is provided in the pressure chamber (411), and an electronic barometer is fixedly connected to the inner wall of the pressure chamber; The device housing (1) is provided with a lower part of the auxiliary mechanism (2) disposed in the device housing (1). An air compressor (5) is fixedly connected to the device housing (1). The air outlet of the air compressor (5) is connected to a second connecting pipe (26). A connecting pipe is provided on the air inlet of the air compressor (5). One end of the connecting pipe is connected to the air inlet of the air compressor (5). The other end of the connecting pipe passes through the device housing (1) and is disposed outside the device housing (1). A solenoid valve is fixedly installed on the mechanism connecting pipe (49).

2. The airtightness sound and light detection device according to claim 1, characterized in that: A butt end 1 (22) is symmetrically distributed and fixedly connected at the opening edge of the shell opening, and a butt end 2 (42) corresponding to the butt end 1 (22) is symmetrically distributed and fixedly connected on the lower end surface of the mechanism cover plate (41), a threaded hole is opened on the butt end 1 (22), and a connecting through hole 1 is opened through the butt end 2 (42), and a connecting bolt 1 is threadedly connected between the butt end 1 (22) and the butt end 2 (42), and the connecting bolt 1 passes through the connecting through hole 1 on the butt end 2 (42) and is threadedly connected to the threaded hole on the butt end 1 (22).

3. The airtightness sound and light detection device according to claim 1, characterized in that: The driving motor (28) is embedded through and fixedly connected to the bottom surface of the mechanism housing (21); a driving shaft is fixedly connected to the driving end of the driving motor (28); the driving shaft is coaxially fixedly connected to the bottom surface of the supporting circular plate (210); a fixing column (212) is fixedly connected to the middle of the upper end surface of the supporting circular plate (210); a threaded connection hole (213) is provided on the upper end surface of the fixing column (212); sleeve columns (211) are evenly distributed in an annular manner on the side end of the fixing column (212); and the sleeve columns (211) are fixedly connected to the supporting circular plate (210).

4. The airtightness sound and light detection device according to claim 3, characterized in that: The upper fixing ring (34) and the lower fixing ring (35) are both coaxially sleeved with a sleeve ring (31), and a connecting plate (33) is fixedly connected between the sleeve ring (31) and the inner end faces of the upper fixing ring (34) and the lower fixing ring (35). The end faces of the sleeve ring (31) are evenly distributed with sleeve holes (32) extending therethrough, and the sleeve columns (211) are sleeved in the sleeve holes (32), and the fixing columns (212) are sleeved in the sleeve ring (31). The lower fixing ring (35) is arranged on a supporting circular plate (210), and the upper end face of the sleeve ring (31) in the upper fixing ring (34) is flush with the upper end face of the fixing column (212).

5. The airtightness sound and light detection device according to claim 4, characterized in that: A limited fixing plate is provided on the end surface of the sleeve ring (31) and the fixing column (212) in the upper fixing ring (34), and a second connecting through hole is provided through the limited fixing plate. A second connecting threaded bolt is provided between the limited fixing plate and the fixing column (212), and the second connecting threaded bolt passes through the second connecting through hole on the limited fixing plate and is threadedly connected to a threaded connection hole (213) on the fixing column (212).

6. The airtightness sound and light detection device according to claim 1, characterized in that: Two drying layers (47) and an activated carbon layer (48) are respectively arranged in the filter chamber (46), and the two drying layers (47) are respectively arranged on the upper and lower sides of the activated carbon layer (48). The lower end of the pressure chamber (411) is connected to the mechanism connecting pipe (49), and the upper end of the pressure chamber (411) is connected to the air outlet pipe (412). A pressure chamber is provided in the pressure chamber (411), and an electronic barometer is fixedly connected to the inner wall of the pressure chamber. A barometer (410) is fixedly installed on the mechanism connecting pipe (49). An air inlet (45) is provided on the bottom surface of the filter chamber (44), and the air inlet (45) is connected to the inside of the mechanism shell (21).

7. The airtightness sound and light detection device according to claim 6, characterized in that: A control panel (7) and an alarm light (8) are fixedly connected to the device housing (1), and the solenoid valve, the alarm light (8) and the electronic barometer are electrically connected to the control panel (7).

8. The airtightness sound and light detection device according to claim 1, characterized in that: A plurality of oil collecting racks are evenly distributed in an annular shape and fixedly connected on the inner end surface of the oil collecting ring (29).

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