A fire valve processing and testing device

Abstract

The present invention relates to the technical field of valve detection devices, and specifically proposes a fire valve processing and detection device, including a pressure measuring platform, wherein the pressure measuring platform is equipped with a T-shaped pressure measuring component for detecting the valve strength, and the interior of the pressure measuring component contains liquid for air pressure detection; a driving component is used to drive the pressure measuring component to rotate; the present invention places the fire valve between two pressure measuring covers by arranging a pressure measuring cover, a sealing cover and a negative pressure component, and the ends are both sleeved with the sealing cover, a sealing ring and a sealing gasket are arranged between the sealing cover and the pressure measuring cover, and a sealing strip is arranged between the pressure measuring covers. The negative pressure component forms a negative pressure inside the space formed by the pressure measuring cover and the sealing cover to ensure the overall sealing. The negative pressure state is always maintained during the test process to reduce the risk of air leakage and ensure that the test results are more accurate. During the entire test process, the fire valve is located in a relatively sealed space, so if the surface is damaged or exploded, the danger to the detection personnel is relatively small.

Description

Technical Field

[0001] The present invention relates to the technical field of valve detection devices, and particularly proposes a fire valve processing and detection device. Background Art

[0002] Fire valves are vital components in fire protection systems and play a key role in fire prevention, control and fire fighting. They themselves need to have a certain pressure resistance. However, during the production process of valves, there are some parts that are relatively prone to low strength due to structural characteristics, stress conditions and other factors, such as the connection between the valve body and the valve cover, the weak points of the valve body and the stuffing box (that is, the gap between the valve stem and the valve body). Therefore, after the valve is produced, it needs to be subjected to corresponding pressure testing. Taking the strength test method as an example, the strength test usually includes the following two types: Hydraulic strength test: Install the valve on the pressure test bench, close the inlet and outlet of the valve, fill the valve with water (or other suitable liquids, such as oil), and pressurize the inside for 5-10 minutes. Observe whether there is water leakage on the surface of the valve body. When observing, you must ensure that the surface of the valve body is dry. Since water flows along the surface of the valve, it is necessary to cooperate with lighting observation, which makes visual observation more inconvenient. In addition, if a leak occurs during the detection process, the water will flow all around, making it difficult to accurately determine where the water is leaking from the valve, and thus it is impossible to make targeted structural improvements; Air pressure strength test: Install the valve and close the inlet and outlet, fill it with compressed air to the specified pressure, and during the pressure maintenance process, check the integrity and sealing of each part of the valve, and observe whether there is any sound or sign of gas leakage. However, since the valve is exposed to the air, the danger of rupture and explosion to people during the pressurization process is relatively high, and the leaked gas will spread everywhere, and it is also difficult to accurately find the leak location. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a fire valve processing and detection device, which is used to solve the problems mentioned in the above background technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions: a fire valve processing and testing device, comprising a pressure testing platform, wherein the pressure testing platform is equipped with a T-shaped pressure testing assembly for testing valve strength, wherein the pressure testing assembly contains a liquid for air pressure testing; a drive assembly for driving the pressure testing assembly to rotate, thereby performing segmented lateral testing of the fire valve; the pressure testing assembly includes two colorless and transparent pressure testing covers that can be rotated to open and close, wherein the side surfaces of the two pressure testing covers in the closed state are complete circular surfaces, and the opposing sides of the pressure testing covers are provided with sealing strips for improving sealing performance; each side surface of the pressure testing cover near the end is provided with an integrally formed semicircular extrusion block, and the surface of the extrusion block is configured as an inclined surface; each end position of the pressure testing cover is equipped with a cylindrical sealing cover, and the interior of the sealing cover is provided with an annular sealing ring for improving sealing performance, wherein one end of the extrusion block near the sealing cover is closer to the pressure testing cover than the other end, and the inner wall shape of the sealing ring is adapted to the shape of the extrusion block; a negative pressure assembly is assembled inside the pressure testing assembly and is used to extract air from the pressure testing assembly.

[0005] Preferably, the interior of the sealing cover is provided with a plurality of integrally formed clamping rods, and a ring-shaped sealing gasket for improving the sealing is provided between the sealing cover and the valve flange, and the clamping rod passes through the sealing gasket and is inserted into the bolt hole of the flange; the driving assembly includes a driving rod which is arranged on both sides of the pressure measuring platform and can be translated and rotated, and the end of the driving rod is equipped with a connecting plate with a plurality of connecting rods on the surface, and the side surfaces of the two sealing covers on the same axis are provided with a plurality of integrally formed connecting pipes, and the connecting rods are clamped in the inside of the connecting pipes.

[0006] Preferably, one of the pressure measuring covers is provided with an integrally formed liquid holding frame on its surface, an isolation plate is installed inside the liquid holding frame, a liquid pipe for connecting to the interior of the pressure measuring cover is installed on the surface of the liquid holding frame, and an isolation valve is installed in the middle of the liquid pipe.

[0007] Preferably, an integrally formed support frame is provided on the surface of the pressure measuring cover, and a movable support plate is provided inside the pressure measuring platform, and the support plate movably passes through the interior of the support frame.

[0008] Preferably, the negative pressure component includes a ventilation tube having a plurality of ventilation holes in an annular array on the surface, wherein the surface of one of the sealing covers is equipped with an annular suction pipe, the ventilation pipe is connected to the interior of the suction pipe, the surface of the suction pipe is provided with a plurality of suction ports in an annular array, the interior of the suction port is equipped with a sealing plug, and the surface of the suction pipe is equipped with a suction device.

[0009] Preferably, the suction device includes: a negative pressure cabin assembled on a pressure measuring platform; an isolation cabin assembly sleeved on the surface of the suction pipe, a negative pressure pipe being connected between the isolation cabin assembly and the negative pressure cabin, and one of the sealing plugs being located inside the isolation cabin assembly; and a plug removal assembly for removing and installing the sealing plug, which is installed on the surface of the isolation cabin assembly.

[0010] Preferably, the isolation cabin assembly includes half-sleeve one and half-sleeve two that can be opened and closed horizontally, the surface of the half-sleeve two is provided with an integrally formed isolation sleeve, the sealing plug is located inside the isolation sleeve, and both sides of the surface of the half-sleeve one and the isolation sleeve are provided with integrally formed outer edge plates, and a guide rod and a connecting spring are provided between the outer edge plates on the same side, the connecting spring is sleeved on the surface of the guide rod, the negative pressure tube is connected to the position of the isolation sleeve, and a movable platform is assembled between the negative pressure cabin and the pressure measuring platform.

[0011] Preferably, a sealing strip 2 for improving sealing is provided between the half-sleeve 1 and the half-sleeve 2.

[0012] Preferably, the surface of the plug extraction assembly is provided with a plug head with a draw hook, and the plug head is assembled on the surface of the sealing plug. The surface of the isolation cabin assembly is equipped with an electric push rod, and the end of the electric push rod is equipped with a buckle that is clamped on the draw hook.

[0013] Preferably, an annular groove is provided inside the sealing cover, and the sealing ring is assembled inside the annular groove.

[0014] 1. The above technical solution has the following advantages or beneficial effects: The present invention provides a fire valve processing and testing device, which places the fire valve between the two pressure measuring covers, and the ends are both sleeved with sealing covers, and sealing rings and sealing gaskets are arranged between the sealing covers and the pressure measuring covers, and a sealing strip is arranged between the pressure measuring covers. The negative pressure assembly forms a negative pressure inside the space formed by the pressure measuring covers and the sealing covers, and the external air pressure will squeeze the two pressure measuring covers and three sealing covers at the same time to ensure the overall sealing, and the negative pressure state is always maintained during the test, reducing the risk of air leakage and ensuring that the test results are more accurate. During the entire test process, the fire valve is located in a relatively sealed space, so if the surface is damaged or exploded, the danger to the test personnel is relatively small.

[0015] 2. The above technical solution has the following advantages or beneficial effects: The present invention provides a fire valve processing and detection device, which adjusts the position of the pressure measuring component through the driving component by setting a liquid holding frame, an isolation plate, a liquid pipe and an isolation valve to change the relative position of the liquid and the valve, quickly realize the partition detection of the valve, improve the accuracy of the detection, and do not need to repeatedly load and unload the valve; when the pressure measuring cover and the fire valve are rotated to the valve cover and the valve stem are completely vertically downward, the pressure measuring liquid will first submerge the position of the valve stem. At this time, if the valve stem position leaks, bubbles will be generated. Then the isolation valve is opened, and the liquid will flow along the inner wall of the pressure measuring cover, reducing visual interference until the valve cover is submerged. At this time, the pressure measuring personnel only need to observe whether bubbles are generated at the valve cover position, thereby ensuring that the detection position is more accurate and convenient for the pressure measuring personnel to observe; during the pressure measuring component position adjustment process, the sealing inside the pressure measuring component is maintained by the isolation cabin component to ensure the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a fire valve processing and detection device provided by the present invention.

[0018] Figure 2 It is a structural schematic diagram of the support plate position of the present invention.

[0019] Figure 3 This is a schematic diagram of the partially disassembled structure showing the location of the drive components.

[0020] Figure 4 It is a schematic diagram of the structure when the pressure measuring cover is opened.

[0021] Figure 5 yes Figure 3 Schematic diagram of the right section plane.

[0022] Figure 6 This is a schematic diagram of the state structure of the pressure measuring component when the negative pressure component is not installed.

[0023] Figure 7 yes Figure 6 Front section plan view of .

[0024] Figure 8 This is a schematic diagram of the state structure of the pressure measuring component when the negative pressure component is installed.

[0025] Figure 9 yes Figure 8 Front section plan view of .

[0026] Figure 10 It is a schematic diagram of the three-dimensional structure of the negative pressure component.

[0027] Figure 11 yes Figure 10 Right sectional plan view.

[0028] Figure 12 It is a three-dimensional structural diagram of the isolation cabin assembly.

[0029] Figure 13 yes Figure 12 Schematic diagram of part of the structure inside the isolation sleeve.

[0030] Figure 14 It is a structural diagram of the electric push rod in working state.

[0031] In the figure: 1. Pressure measuring platform; 2. Pressure measuring cover; 3. Sealing strip 1; 4. Extrusion block; 5. Sealing cover; 6. Sealing ring; 7. Clamping rod; 8. Sealing gasket; 9. Driving rod; 10. Connecting rod; 11. Connecting pipe; 12. Liquid holding frame; 13. Isolation plate; 14. Liquid pipe; 15. Isolation valve; 16. Support frame; 17. Support plate; 18. Vent hole; 19. Vent pipe; 20. Intake pipe; 21. Intake port; 22. Sealing plug; 23. Negative pressure chamber; 24. Negative pressure pipe; 25. Half sleeve 1; 26. Half sleeve 2; 27. Outer edge plate; 28. Guide rod; 29. ​​Connecting spring; 30. Isolation sleeve; 31. Moving platform; 32. Sealing strip 2; 33. Plug; 34. Electric push rod; 35. Retaining ring; 36. Annular groove; 37. Sealing sleeve. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Figure 1-Figure 2 Disclosed is a fire valve processing and testing device. Different from the traditional pressurization test, the fire valve strength test is carried out by using negative pressure. It should be noted that during the pressurization operation, the given pressure is 1.5 times the nominal pressure of the fire valve. Therefore, during the decompression operation, since the fire valve is in a negative pressure state, the air pressure is used as the given pressure, and the numerical relationship of 1.5 times also needs to be satisfied.

[0035] like Figure 1-Figure 2 As shown, the fire valve needs to be subjected to a strength pressure test above the pressure testing platform 1. The pressure testing platform 1 is equipped with a pressure testing assembly for detecting the strength of the valve. The pressure testing assembly includes two colorless and transparent pressure testing covers 2 that can be rotated and opened and closed and are arranged above the pressure testing platform 1. The two pressure testing covers 2 are connected by hinges. The pressure testing covers 2 require a large pressure resistance to ensure that they can be used when detecting negative pressure. When the two pressure testing covers 2 are in a closed state, their side surfaces are complete circular surfaces. The pressure testing covers 2 are T-shaped and have three ends. Each end position of the pressure testing covers 2 is equipped with a cylindrical sealing cover 5. An integrally formed support frame 16 is provided on the surface of one of the pressure testing covers 2. A movable support plate 17 is provided inside the pressure testing platform 1. The support plate 17 passes through one end of the support frame 16, and its two sides are symmetrically inclined to ensure that the support plate 17 can stably pass through the interior of the support frame 16, thereby positioning the initial position of the pressure testing cover 2.

[0036] like Figure 3 and Figure 5 As shown, a driving assembly is also provided for driving the pressure measuring assembly to rotate, thereby performing zoning detection on the fire valve. The driving assembly includes a driving rod 9. Driving rods 9 capable of translation and rotation are provided on both sides of the pressure measuring platform 1. This process can be driven by a motor and an electric push rod (not shown in the figure). The end of the driving rod 9 is equipped with a connecting plate with a plurality of connecting rods 10 on the surface. The connecting rods 10 and the connecting plate are an integrally formed structure. The side surfaces of the two sealing covers 5 on the same axis are provided with a plurality of integrally formed connecting pipes 11. The connecting rods 10 can be stuck in the inside of the connecting pipes 11 and can be fixed with a pin to ensure the firmness of the installation. The sealing cover 5 at the other end is only driven to move by the electric push rod. When it moves to the working position, the electric push rod will be separated from the surface of the sealing cover 5. A plug-in tube can be provided on the sealing cover 5 at this position to facilitate the sealing cover 5 to be sleeved on the output shaft of the electric push rod, and also to facilitate separation.

[0037] like Figure 4 、 Figure 7 and Figure 10As shown, a sealing strip 3 for improving the sealing is provided on the relative contact surfaces of the two pressure measuring covers 2. At the same time, three integrally formed semicircular extrusion blocks 4 are provided on the side surface of each pressure measuring cover 2, which correspond to the three end positions of the pressure measuring cover 2 respectively. The two extrusion blocks 4 at the same vertical position can just form a circle. It should be noted that the shape of the sealing strip 3 also needs to be adapted to the extrusion blocks 4. The end of the extrusion block 4 close to the sealing cover 5 is closer to the pressure measuring cover 2 than the other end, thereby forming a truncated cone-shaped inclined surface. An annular groove 36 is provided inside the sealing cover 5, and a sealing ring 6 is assembled inside the annular groove 36. The inner wall shape of the sealing ring 6 is adapted to the shape of the extrusion block 4. A plurality of integrally formed clamping rods 7 are provided inside the sealing cover 5. A ring-shaped sealing gasket 8 for improving the sealing is provided between the sealing cover 5 and the valve flange. The sealing gasket 8 is against the flange of the fire valve. The clamping rod 7 passes through the sealing gasket 8 and is inserted into the bolt hole of the flange.

[0038] During the pressure measurement process, the fire valve is placed inside one of the pressure measuring covers 2, and a certain amount of liquid is contained inside the pressure measuring cover 2. The other pressure measuring cover 2 is closed. At this time, an electric push rod is used to move each sealing cover 5 to be connected to the end of the pressure measuring cover 2. At the same time, the sealing ring 6 is against the surface of the extrusion block 4. A negative pressure component is set inside one of the sealing covers 5. The negative pressure component is started to form a negative pressure inside the space formed by the pressure measuring cover 2 and the sealing cover 5. The external air pressure will squeeze the two pressure measuring covers 2 and the three sealing covers 5 at the same time. At this time, the overall sealing can be ensured, and the negative pressure state is always maintained during the test, reducing the risk of air leakage and ensuring that the test results are more accurate. During the entire test process, the fire valve is located in a relatively sealed space. Therefore, if the surface is damaged or exploded, the danger to the test personnel is relatively small.

[0039] Then the driving rod 9 will drive the sealing cover 5 to rotate, and the corresponding pressure measuring cover 2 will also rotate. Due to gravity, the pressure measuring liquid is always at the lowest position, and the fire valve is partially immersed in the inside of the detection liquid. Since the external air pressure is greater than the internal air pressure, if there are cracks on the surface of the fire valve or areas where the seal is not in place, then when this position is rotated and immersed in the pressure measuring liquid, the bubbles generated in the liquid can be clearly observed. The inspector can judge the damage location by the position of the bubbles, and since the range of each detection is relatively small, the inspector can judge the damage location more accurately.

[0040] Since the locations where fire valves are prone to air leakage are the connection locations of the valve cover and the stuffing locations of the stuffing box, partition detection can be performed on these locations.

[0041] like Figure 5As shown, an integrally formed liquid holding frame 12 is provided on the surface of one of the pressure measuring covers 2. The position of the liquid holding frame 12 is completely opposite to the position where the valve cover is connected. The interior of the liquid holding frame 12 is equipped with an isolation plate 13. The isolation plate 13 divides the liquid holding frame 12 into an area inside the pressure measuring cover 2 and an area inside the liquid holding frame 12. The surface of the liquid holding frame 12 is equipped with a liquid pipe 14 for connecting to the interior of the pressure measuring cover 2. The middle part of the liquid pipe 14 is equipped with an isolation valve 15. In this embodiment, two groups of liquid pipes 14 and isolation valves 15 are provided, one group of which is connected to the lateral area position of the pressure measuring cover 2, and the other group of which is connected to the longitudinal area position of the pressure measuring cover 2.

[0042] When adding pressure measuring liquid to the interior of the pressure measuring hood 2, the isolation valve 15 connecting the horizontal area is in the open state, ensuring that the pressure measuring liquid can enter the interior of the liquid holding frame 12, so that the interior is completely filled with liquid until the negative pressure component is started and the isolation valve 15 at this position is closed. During this process, the isolation valve 15 connecting the longitudinal area is closed. When the pressure measuring hood 2 and the fire valve are rotated to the point where the valve cover and valve stem are completely vertically downward, the pressure measuring liquid will first submerge the valve stem position. At this time, if the valve stem position leaks, bubbles will be generated. Then the isolation valve 15 connecting the longitudinal area will be opened, and the liquid will flow along the inner wall of the pressure measuring hood 2, reducing visual interference until the valve cover is submerged. At this time, the pressure measuring personnel only need to observe whether bubbles are generated at the valve cover position, thereby ensuring that the detection position is more accurate and convenient for the pressure measuring personnel to observe.

[0043] Figure 8 yes Figure 6 One embodiment of the negative pressure component installed inside the sealing cover 5 in this state.

[0044] like Figures 8-11 As shown, the interior of the sealing cover 5 is equipped with an annular vent pipe 19, and the surface of the vent pipe 19 is provided with a plurality of vent holes 18 in an annular array. The surface of one of the sealing covers 5 is equipped with an annular intake pipe 20, and only the end of the intake pipe 20 is assembled on the sealing cover 5 through a mounting rod. The corresponding vent pipe 19 is connected to the interior of the intake pipe 20, and the surface of the intake pipe 20 is provided with a plurality of intake ports 21 in an annular array. The interior of the intake port 21 is equipped with a sealing plug 22. Similarly, when negative pressure is generated inside the vent pipe 19 and the intake pipe 20, the atmospheric pressure will squeeze the sealing plug 22, thereby improving the sealing performance of the intake pipe 20.

[0045] like Figure 10 、 Figure 12-14As shown, the surface of the suction pipe 20 is equipped with a suction device, which includes a negative pressure cabin 23. A moving platform 31 is installed on the surface of the pressure measuring platform 1, and the negative pressure cabin 23 is installed on the surface of the moving platform 31. The moving platform 31 can drive the negative pressure cabin 23 to move up and down and move laterally; an isolation cabin assembly is sleeved on the surface of the suction pipe 20, and the isolation cabin assembly includes a half-sleeve 1 25 and a half-sleeve 2 26 installed on the surface of the suction pipe 20. The half-sleeve 1 25 and the half-sleeve 2 26 just form a The synthetic arc-shaped circular tube is adapted to the shape of the intake pipe 20. A sealing sleeve 37 is provided on the inner side of half-sleeve 1 25 and half-sleeve 2 26. The sealing sleeve 37 is attached to the surface of the intake pipe 20, and a sealing strip 2 32 is provided at the contact position of half-sleeve 1 25 and half-sleeve 2 26 to improve the sealing performance. The surface of half-sleeve 2 26 is provided with an integrally formed isolation sleeve 30, one of the sealing plugs 22 is located inside the isolation sleeve 30, and the negative pressure pipe 24 is connected to the isolation sleeve 30.

[0046] An integrally formed outer edge plate 27 is provided on both sides of the surface of the half-sleeve 25 and the isolation sleeve 30, and a guide rod 28 and a connecting spring 29 are provided between the outer edge plates 27 on the same side. The connecting spring 29 is sleeved on the surface of the guide rod 28, and the connecting spring 29 is in a stretched state. When the half-sleeve 26 is separated from the surface of the half-sleeve 25, the suction pipe 20 can stably rotate on the inner side of the half-sleeve 26; the suction device also includes a plug-pulling assembly for removing and installing the sealing plug 22, and the plug-pulling assembly includes a plug head 33 assembled on the surface of the sealing plug 22, and the surface of the plug head 33 is provided with an integrally formed draw hook, and the surface of the isolation sleeve 30 is equipped with an electric push rod 34, and the end of the electric push rod 34 is equipped with a buckle 35, and the buckle 35 can be buckled on the plug head 33.

[0047] When the sealing cover 5 rotates, it will drive the vent pipe 19 and the suction pipe 20 to rotate at the same time. Although the vent hole 18 on the surface of the vent pipe 19 is partially immersed in the pressure measuring liquid surface, most of the vent pipe 19 is still on the liquid surface. Therefore, the pressure measuring liquid will not be sucked away during the negative pressure process. Before the suction pipe 20 rotates, the moving platform 31 makes the negative pressure cabin 23 rise, thereby indirectly driving the half sleeve 26 to move up to avoid obstruction to the rotation of the suction pipe 20. When the next sealing plug 22 is located in the isolation When the air inlet 21 is closed, the air inlet 22 is tightened and the air inlet 23 is tightened. When the air inlet 21 is opened, the air inlet 22 is tightened and the air inlet 23 is tightened. When the air inlet 21 is opened, the air inlet 22 is tightened and the air inlet 23 is tightened. When the air inlet 21 is opened, the air inlet 22 is tightened and the air inlet 23 is tightened. When the air inlet 21 is opened, the air inlet 22 is tightened and the air inlet 23 is tightened. When the air inlet 21 is opened, the air inlet 22 is tightened and the air inlet 23 is tightened.

[0048] When the suction pipe 20 needs to be rotated again, the electric push rod 34 pushes the sealing plug 22 back into the interior of the suction port 21, and the negative pressure chamber 23 inflates the interior of the isolation sleeve 30, so that the air pressure inside the isolation sleeve 30 becomes normal atmospheric pressure. At this time, the atmospheric pressure will further squeeze the sealing plug 22 to ensure the sealing of this position. Then the suction pipe 20 needs to be rotated slightly to make the buckle 35 disengage from the hook, and then the moving platform 31 is used to make the negative pressure chamber 23 rise, indirectly driving the half sleeve 26 to move up, and repeat the above operations.

[0049] The negative pressure chamber 23 is used to maintain a stable negative pressure state inside the pressure measuring cover 2 and the sealing cover 5, thereby further improving the accuracy of the detection.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0052] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A fire valve processing and detection device, characterized in that: include: A pressure test platform is equipped with a T-shaped pressure test component for testing valve strength, and the pressure test component contains liquid for air pressure testing; The pressure measuring assembly includes two colorless and transparent pressure measuring covers that can be rotated to open and close, and the side surfaces of the two pressure measuring covers in the closed state are complete circular surfaces; Each end position of the pressure measuring cover is equipped with a cylindrical sealing cover; The driving component is used to drive the pressure measuring component to rotate and change the relative position of the liquid and the valve, and cooperate with the pressure measuring component to perform partition detection on the fire valve in a closed environment; The negative pressure component is assembled inside the pressure measuring component; The negative pressure assembly includes a ventilation tube having a plurality of ventilation holes in an annular array on its surface, a surface of a sealing cover is equipped with an annular suction pipe, the corresponding ventilation pipe is connected to the interior of the suction pipe, the surface of the suction pipe is provided with a plurality of suction ports in an annular array, the interior of the suction ports is equipped with a sealing plug, and the surface of the suction pipe is equipped with a suction device; The suction device includes a negative pressure cabin assembled on the pressure measuring platform, an isolation cabin assembly sleeved on the surface of the suction pipe to ensure the sealing of the detection area during rotation, and a plug removal assembly for removing and installing the sealing plug.

2. A fire valve processing and detection device according to claim 1, characterized in that: A plurality of integrally formed clamping rods are provided inside the sealing cover. An annular sealing gasket for improving sealing is provided between the sealing cover and the valve flange. The clamping rods penetrate the sealing gasket and are inserted into the bolt holes of the flange. The driving assembly includes a driving rod that is arranged on both sides of the pressure measuring platform and can be translated and rotated. The end of the driving rod is equipped with a connecting plate with multiple connecting rods on the surface. The side surfaces of the two sealing covers on the same axis are each provided with multiple integrally formed connecting tubes, and the connecting rod is clamped in the inside of the connecting tube.

3. A fire valve processing and detection device according to claim 1, characterized in that: The surface of one of the pressure measuring covers is provided with an integrally formed liquid holding frame, the interior of the liquid holding frame is equipped with an isolation plate, the surface of the liquid holding frame is equipped with a liquid pipe for connecting to the interior of the pressure measuring cover, and the middle of the liquid pipe is equipped with an isolation valve.

4. A fire valve processing and detection device according to claim 3, characterized in that: An integrally formed support frame is provided on the surface of the pressure measuring cover, and a movable support plate is provided inside the pressure measuring platform, and the support plate movably passes through the interior of the support frame.

5. The fire valve processing and detection device according to claim 1, characterized in that: A sealing strip is provided on the opposite side of the pressure measuring cover to improve the sealing performance. Each side surface of the pressure measuring cover close to the end is provided with an integrally formed semicircular extrusion block, and the surface of the extrusion block is set as an inclined surface. An annular sealing ring is provided inside the sealing cover for improving sealing performance. One end of the extrusion block close to the sealing cover is closer to the pressure measuring cover than the other end. The inner wall shape of the sealing ring is adapted to the shape of the extrusion block.

6. The fire valve processing and detection device according to claim 1, characterized in that: A negative pressure pipe is connected between the isolation cabin assembly and the negative pressure cabin, and one of the sealing plugs is located inside the isolation cabin assembly.

7. A fire valve processing and detection device according to claim 6, characterized in that: The isolation chamber assembly includes half-tube one and half-tube two, both of which are provided with sealing sleeves on the inner side. The surface of the half-tube two is provided with an integrally formed isolation sleeve. The sealing plug is located inside the isolation sleeve. Both sides of the surface of the half-tube one and the isolation sleeve are provided with integrally formed outer edge plates. A guide rod and a connecting spring are provided between the outer edge plates on the same side. The connecting spring is sleeved on the surface of the guide rod. The negative pressure pipe is connected to the position of the isolation sleeve. A movable platform is assembled between the negative pressure chamber and the pressure measuring platform.

8. The fire valve processing and detection device according to claim 7, characterized in that: A sealing strip 2 for improving sealing is provided between the first and second half sleeves.

9. The fire valve processing and detection device according to claim 6, characterized in that: The surface of the plug extraction assembly is provided with a plug head with a draw hook, and the plug head is assembled on the surface of the sealing plug. The surface of the isolation cabin assembly is equipped with an electric push rod, and the end of the electric push rod is equipped with a buckle that is clamped on the draw hook.

10. The fire valve processing and detection device according to claim 1, characterized in that: An annular groove is provided inside the sealing cover, and the sealing ring is assembled inside the annular groove.

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