CN217815189U - Vacuum pressure cap mounting structure - Google Patents
Vacuum pressure cap mounting structure Download PDFInfo
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- CN217815189U CN217815189U CN202221642932.2U CN202221642932U CN217815189U CN 217815189 U CN217815189 U CN 217815189U CN 202221642932 U CN202221642932 U CN 202221642932U CN 217815189 U CN217815189 U CN 217815189U
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Abstract
The utility model provides a vacuum pressure cap mounting structure relates to oil storage tank accessory technical field, has solved the vacuum pressure cap and can only install in the eminence, leads to maintaining and overhauls the technical problem of difficulty and cycle length. The vacuum pressure cap mounting structure comprises a vacuum pressure cap, a sealing box and an exhaust pipeline communicated with an oil storage tank, wherein the vacuum pressure cap comprises a mounting part and a conversion sleeve, the conversion sleeve is detachably connected with the mounting part, and the vacuum pressure cap is communicated with the exhaust pipeline when being mounted in place; the conversion sleeve is detachably connected to the upper part of the exhaust pipeline; or the sealing box is fixed at the lower part of the exhaust pipeline, and the mounting part is fixedly connected with the sealing box so as to fix the vacuum pressure cap in the sealing box. The vacuum pressure cap can be arranged on the upper part or the lower part of the exhaust pipeline according to the actual condition, and the installation mode is more flexible; when the vacuum pressure cap is connected in the lower part of exhaust pipe, make things convenient for maintainer to overhaul vacuum pressure cap, need not the operation of ascending a height.
Description
Technical Field
The utility model belongs to the technical field of the oil storage tank accessory technique and specifically relates to a vacuum pressure cap mounting structure is related to.
Background
When the temperature, the air pressure and the volume of the underground oil storage tank of the gas station change, the pressure in the tank can change, the pressure in the oil storage tank is higher than the external atmospheric pressure or lower than the external atmospheric pressure, and the problems of difficult oil filling and unloading, oil gas leakage and the like can be caused when the pressure in the oil storage tank is abnormal. To balance the pressure between the oil reservoir and the ambient atmospheric pressure, a vacuum pressure cap needs to be provided so that the vacuum pressure cap communicates with the oil storage tank.
The vacuum pressure cap can be opened when pressure difference exists between the oil storage tank and the external atmospheric pressure, so that the pressure in the oil storage tank is recovered to be normal.
In the prior art, oil gas discharged from an oil storage tank is flammable and explosive gas, an exhaust port must be arranged at a high position, and generally the exhaust port of the oil storage tank needs to be larger than 4m of the ground. If install vacuum pressure cap in the position nearer from ground, the vacuum safety cap among the prior art has the risk of ignition easily, has the potential safety hazard. Therefore, the vacuum pressure cap is generally installed at a height of more than 4m from the ground in the prior art.
The applicant has found that the prior art has at least the following technical problems: in order to keep the vacuum pressure cap to work normally, the vacuum pressure cap needs to be overhauled regularly, and when the vacuum pressure cap is maintained, maintenance personnel need to use a climbing vehicle to ascend, so that maintenance and overhaul are difficult and the period is long.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vacuum pressure cap mounting structure to the vacuum pressure cap that exists among the solution prior art can only be installed in the eminence, leads to maintaining and overhauls the technical problem of difficulty and cycle length. The utility model provides a plurality of technological effects that preferred technical scheme among a great deal of technical scheme can produce are seen in the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a vacuum pressure cap mounting structure, including vacuum pressure cap, seal box and with the exhaust pipe of oil storage tank intercommunication, wherein:
the vacuum pressure cap comprises an installation part and a conversion sleeve, the conversion sleeve is detachably connected with the installation part, and the vacuum pressure cap is communicated with the exhaust pipeline when being installed in place; wherein:
the conversion sleeve is detachably connected to the upper part of the exhaust pipeline; or, the seal box is fixed in the lower part of exhaust pipe, the installation department with seal box fixed connection in order to incite somebody to action the vacuum pressure cap is fixed in the seal box.
Preferably, the mounting portion includes an external thread portion, and the external thread portion is in threaded connection with the seal box;
the conversion sleeve comprises an internal thread sleeve, and the internal thread sleeve is in threaded connection with the external thread part or the exhaust pipeline.
Preferably, be provided with valve body, exhaust riser, upper flange and lower flange on the blast pipeline, wherein:
the upper flange is connected with the bottom of the exhaust vertical pipe, and the lower flange is connected with the top of the valve body;
the upper flange is fixedly connected with the lower flange, and the conversion sleeve is detachably connected to the upper part of the vertical exhaust pipe; or the sealing box is positioned between the upper flange and the lower flange and fixedly connected with the upper flange and the lower flange, and the top of the exhaust vertical pipe is provided with a rainproof and insect-proof cap.
Preferably, the sealing case includes a case body and a lid body, wherein:
the box body is detachably connected with the exhaust pipeline, an assembly opening communicated with the exhaust pipeline is formed in the box body, the mounting part extends into the assembly opening, is fixedly connected with the assembly opening and is in sealing contact with the assembly opening, and the vacuum pressure cap is fixed in the box body;
one side of the box body is provided with an open side, and the cover body is detachably connected to the open side.
Preferably, a liquid collecting groove is formed in the lower end of the interior of the box body and is formed in the periphery of the assembling port.
Preferably, the vacuum pressure cap includes a flame arrestor fixedly attached to a lower portion of the mounting portion and positioned within the mounting opening.
Preferably, the vacuum pressure cap comprises an upper valve body and an outer sleeve body, the lower part of the upper valve body extends into the outer sleeve body and is fixedly connected with the outer sleeve body, and the mounting part is positioned at the lower part of the outer sleeve body;
be provided with case pole, core bar support, sealed pad, separation blade and first elasticity portion in the overcoat body, wherein:
the valve core rod penetrates through the core rod support and is fixedly connected with the core rod support, the blocking piece is fixed at the top of the valve core rod, the sealing gasket is fixed at the upper part of the core rod support, and when the vacuum pressure cap is in a sealing state, the upper valve body is in sealing contact with the sealing gasket, and the blocking piece is in sealing contact with the sealing gasket;
a stopping part is arranged at the lower part in the outer sleeve body, the first elastic part is positioned at the periphery of the valve core rod, the lower end of the first elastic part is abutted against the stopping part, and the upper end of the first elastic part is abutted against the core rod support; the sealing gasket and the core rod support can move downwards under the pushing of air pressure difference and compress the first elastic part, so that the upper valve body is separated from the sealing gasket, and then outside air enters the oil storage tank.
Preferably, a second elastic part is further arranged in the outer sleeve body, a resisting part is arranged at the lower part of the valve core rod, the second elastic part is sleeved on the periphery of the valve core rod and is positioned in the first elastic part, the lower end of the second elastic part is abutted against the resisting part, and the upper end of the second elastic part is abutted against the core rod support; the valve core rod and the blocking piece can move upwards under the pushing of air pressure difference and compress the second elastic part, so that the blocking piece is separated from the sealing gasket, and further, the gas in the oil storage tank is released.
Preferably, the vacuum pressure cap comprises a rain cap and a rain skirt, wherein:
the rain shielding skirt is fixedly connected to the upper part of the upper valve body, and the outer peripheral wall of the rain shielding skirt is obliquely arranged from top to bottom in the direction close to the axis of the upper valve body;
the rain-proof cap is fixed on the upper portion of the rain-proof skirt, a collecting groove and a rain falling port are formed in the top of the rain-proof cap, and the rain falling port is communicated with the collecting groove.
Preferably, an insect prevention mesh enclosure is arranged in the rain sheltering cap, and the insect prevention mesh enclosure is of an annular structure arranged around the axis of the vacuum pressure cap.
The utility model provides a vacuum pressure cap mounting structure compares with prior art, has following beneficial effect:
when the conversion sleeve is connected to the mounting part, the vacuum pressure cap can be detachably connected to the upper part of the exhaust pipeline through the conversion sleeve, and the safety performance is high; when dismantling the shift collar with the installation department, the vacuum pressure cap passes through the installation department and can dismantle the lower part of connecting in exhaust pipe, is fixed in the sealed box with the vacuum pressure cap is sealed simultaneously, can guarantee the security performance, and makes things convenient for maintainer to overhaul the vacuum pressure cap simultaneously, need not the operation of ascending a height. The utility model discloses a vacuum pressure cap mounting structure can install the vacuum pressure cap in exhaust pipe's upper portion or lower part according to actual conditions, and the mounting means is more nimble, the installation of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a vacuum pressure cap;
FIG. 2 is an axial structural view of the vacuum pressure cap;
FIG. 3 is a schematic view of the vacuum pressure cap installed on the upper portion of the exhaust line;
FIG. 4 is an axial cross-sectional view of the vacuum pressure cap installed on the upper portion of the exhaust line;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic view of a flame arrestor;
FIG. 7 is a schematic view of a vacuum pressure cap installed on the lower portion of an exhaust line;
FIG. 8 is a schematic view of the vacuum pressure cap in the sealed box;
FIG. 9 is an axial cross-sectional view of the vacuum pressure cap installed in the lower portion of the exhaust line;
fig. 10 is a partial enlarged view at B in fig. 9.
100, vacuum pressure cap; 200. a sealing box; 201. a cartridge body; 202. a cover body; 2011. an assembly port; 2012. a liquid collecting tank; 202. a cover body; 301. a gas exhaust stand pipe; 302. a valve body; 303. an upper flange; 304. a lower flange; 400. rain-proof insect-proof cap;
1. an outer casing; 101. a valve core rod; 102. a core bar support; 103. a gasket; 104. a baffle plate; 105. a first elastic part; 106. a second elastic part; 107. a resisting part;
2. an upper valve body; 3. a conversion sleeve; 4. a rain cap; 401. a rain falling port; 402. collecting tank; 5. an insect prevention net cover; 6. a first seal ring; 7. a second seal ring; 8. a third seal ring; 9. a filter screen; 10. a rain skirt; 11. an installation part; 12. a stopper portion; 13. a flame arrester.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The embodiment of the utility model provides a vacuum pressure cap mounting structure can install the vacuum pressure cap in exhaust pipe's upper portion or lower part according to actual conditions, and the mounting means is more nimble, the installation of being convenient for.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 10.
Example one
As shown in fig. 1 to 10, the present embodiment provides a vacuum pressure cap mounting structure including a vacuum pressure cap 100, a seal box 200, and a vent line communicating with an oil reservoir, wherein: the vacuum pressure cap 100 comprises a mounting part 11 and a conversion sleeve 3, the conversion sleeve 3 is detachably connected with the mounting part 11, and the vacuum pressure cap 100 is communicated with an exhaust pipeline when being mounted in place; wherein: the conversion sleeve 3 is detachably connected to the upper part of the exhaust pipeline, as shown in figures 3-5; alternatively, the sealing case 200 is fixed to the lower portion of the exhaust line, and the mounting portion 11 is fixedly coupled with the sealing case 200 to fix the vacuum pressure cap 100 in the sealing case 200, as shown in fig. 7 to 10.
The vacuum pressure cap 100 is used for balancing the pressure between the oil storage tank and the external atmospheric pressure, and prevents the abnormal pressure in the oil storage tank from causing difficulty in oil filling and oil discharging and oil gas leakage.
In the vacuum pressure cap mounting structure of the present embodiment, when the conversion sleeve 3 is connected to the mounting portion 11, the vacuum pressure cap 100 can be detachably connected to the upper portion of the exhaust line through the conversion sleeve 3, and the safety performance is high; when dismantling change-over sleeve 3 and installation department 11, vacuum pressure cap 100 can dismantle through installation department 11 and connect in the lower part of exhaust pipe, is fixed in vacuum pressure cap 100 is sealed simultaneously in seal box 200, can guarantee the security performance, and makes things convenient for maintainer to overhaul vacuum pressure cap 100 simultaneously, need not the operation of ascending a height. The utility model discloses a vacuum pressure cap mounting structure can install vacuum pressure cap 100 in exhaust pipe's upper portion or lower part according to actual conditions, and the mounting means is more nimble, the installation of being convenient for.
As an alternative embodiment, referring to fig. 1 and 2, the mounting portion 11 includes an external thread portion, and the external thread portion is screwed with the sealing box 200; the conversion sleeve 3 comprises an internal thread sleeve, and the internal thread sleeve is in threaded connection with the external thread part or the exhaust pipeline.
The conversion sleeve 3 (an internal thread sleeve) is in threaded connection with the mounting part 11 (an external thread part), so that the conversion sleeve 3 and the mounting part 11 can be conveniently connected and detached. Referring to fig. 3 to 5, when it is required to mount the vacuum pressure cap 100 on the upper portion of the exhaust line, the conversion sleeve 3 (female screw sleeve) is screw-coupled to the mounting portion 11 (male screw portion), and the vacuum pressure cap 100 is fixed to the upper portion of the exhaust line through the conversion sleeve 3. Referring to fig. 7 to 9, when it is required to mount the vacuum pressure cap 100 on the lower portion of the exhaust line, the conversion sleeve 3 (female screw sleeve) is removed from the mounting portion 11 (male screw portion), and the vacuum pressure cap 100 is fixed to the lower portion of the exhaust line through the mounting portion 11 (male screw portion) in such a manner as to be easily removed.
As an alternative embodiment, referring to fig. 3, 4, 7-9, a valve body 302, a vent standpipe 301, an upper flange 303, and a lower flange 304 are disposed on the vent pipeline, wherein: the upper flange 303 is connected with the bottom of the vent stand pipe 301, and the lower flange 304 is connected with the top of the valve body 302; the upper flange 303 is fixedly connected with the lower flange 304, specifically, the upper flange 303 is detachably connected with the bottom of the exhaust stand pipe 301 through a bolt assembly, and a gasket is clamped between the upper flange 303 and the exhaust stand pipe 301; the lower flange 304 is detachably connected with the top of the valve body 302 through a bolt assembly, and a gasket is clamped between the lower flange and the valve body; a sealing gasket 103 is clamped and fixed between the upper flange 303 and the lower flange 304; the conversion sleeve 3 is detachably connected to the upper part of the exhaust stand pipe 301; or the sealing box 200 is positioned between the upper flange 303 and the lower flange 304, and the three are fixedly connected, and the top of the air exhaust stand pipe 301 is provided with the rainproof and insect-proof cap 400.
The valve body 302 may be a ball valve in the prior art, and is communicated with the exhaust pipeline for controlling the gas flow. The exhaust stand pipe 301 is used as a part of an exhaust pipeline and is positioned above the ball valve, the vertical height of the exhaust stand pipe 301 can be set to be 4m, and an exhaust port is positioned at the top end of the exhaust stand pipe 301, so that the requirements of design and construction specifications of an automobile refueling and gas filling station are met. The sealing box 200 is connected in a manner convenient to mount and dismount, and the sealing box 200 can be arranged at a position about 1m (not limited to the height) away from the ground, so that the sealing box is convenient for maintenance personnel to overhaul.
As an alternative embodiment, referring to fig. 7-9, the sealed box 200 includes a box body 201 and a cover 202, wherein: the box body 201 is detachably connected with an exhaust pipeline, an assembly opening 2011 communicated with the exhaust pipeline is formed in the box body 201, and the mounting portion 11 extends into the assembly opening 2011, is fixedly connected with the assembly opening 2011 and is in sealing contact with the assembly opening 2011 so as to fix the vacuum pressure cap 100 in the box body 201; one side of the cartridge body 201 is provided with an open side, and the lid body 202 is detachably attached to the open side.
Specifically, referring to fig. 7, the cover 202 may be detachably connected to the box body 201 by bolts, screws, or the like, and when maintenance is required, the cover 202 is detached to expose the vacuum pressure cap 100, which facilitates maintenance. When the maintenance is not needed, the sealing box 200 can protect the vacuum pressure cap 100, and the safety performance is ensured. The box body 201 of the embodiment can be made of cast iron, and the surface of the box body is subjected to electrophoresis treatment, so that the box body is corrosion-resistant and good in weather resistance; the cover 202 may be made of a metal steel material, stainless steel or carbon steel (rust-proof treatment), and has good weather resistance.
As an alternative embodiment, referring to fig. 8 and 10, the inner lower end of the cartridge body 201 is provided with a sump 2012, and the sump 2012 is provided at the periphery of the fitting port 2011.
Above-mentioned collecting tank 2012 is the cell body structure that the upper end is uncovered and undercut, even there is external moisture such as rainwater to get into sealed box 200 in, collecting tank 2012 can hold above-mentioned moisture, prevents that water from getting into in the vacuum pressure cap 100.
In order to further improve safety and prevent ignition when the vacuum pressure cap 100 is mounted on the lower portion of the exhaust duct, as an alternative embodiment, as shown in fig. 6 and 9 and 10, the vacuum pressure cap 100 includes a flame arrester 13, and the flame arrester 13 is fixedly connected to the lower portion of the mounting portion 11 and is located in the fitting opening 2011.
Among these, flame arrestor 13 is well known in the art and its specific structure is not shown here. The flame arrester 13 is mainly composed of a casing and a filter element. The filter element is a main fire retardant element for preventing flame from spreading, and a metal mesh filter element and a corrugated filter element are commonly used. The metal mesh type filter element is formed by overlapping a plurality of layers of stainless steel or copper meshes with the diameter of 0.23-0.315 mm. The working principle is as follows: as the flame passes through the many tiny channels of the flame retardant element, it becomes several tiny flames that maximize the contact area between the tiny flames and the walls of the channel, enhancing heat transfer, and thereby lowering the temperature of the flame below the ignition point, thereby preventing flame propagation.
The vacuum pressure cap 100 in this embodiment is installed at the lower portion of the exhaust duct, and the flame arrester 13 is fixedly connected to the lower portion of the installation portion 11, so that even if the vacuum pressure cap 100 is installed at a low position, ignition can be prevented, and safety performance can be further improved.
Example two
The present embodiment is an improvement on the above embodiments, and provides a specific structure of the vacuum pressure cap 100, which is equivalent to a two-way valve, and can maintain the pressure balance in the oil storage tank when the external atmospheric pressure is greater than the internal pressure of the oil storage tank or the external atmospheric pressure is less than the internal pressure of the oil storage tank.
Referring to fig. 1, 2, 4, 5, 9 and 10, the vacuum pressure cap 100 of the present embodiment includes an upper valve body 302 and an outer casing 1, wherein a lower portion of the upper valve body 302 extends into the outer casing 1 and is fixedly connected with the outer casing 1, a mounting portion 11 is located at a lower portion of the outer casing 1, and a flame arrester 13 is fixed at a lower portion of the mounting portion 11.
Referring to fig. 2, 5 and 10, a valve core rod 101, a core rod bracket 102, a sealing gasket 103, a blocking piece 104 and a first elastic part 105 are arranged in the outer casing 1, wherein: specifically, referring to fig. 2, the blocking plate 104 and the valve core rod 101 may be fixedly connected by bolts, the sealing gasket 103 is fixed on the upper portion of the valve core rod support 102, when the vacuum pressure cap 100 is in a sealing state, that is, when the gas channel inside the vacuum pressure cap 100 is in a closed state, the upper valve body 302 is in sealing contact with the sealing gasket 103, and the blocking plate 104 is in sealing contact with the sealing gasket 103; a gap exists between the upper valve body 302 and the baffle plate 104 (so that the sealing gasket 103 and the valve core support move downwards under the action of air pressure difference); at this time, the air flow cannot circulate through the vacuum pressure cap 100; a stopping portion 12 is arranged at the lower part in the outer casing 1, the stopping portion 12 is a step structure formed on the inner wall of the outer casing 1, the first elastic portion 105 is located at the periphery of the valve core rod 101, the lower end of the first elastic portion 105 abuts against the stopping portion 12, and the upper end of the first elastic portion abuts against the core rod bracket 102; the packing 103 and the stem holder 102 can move downward by the pressure difference and compress the first elastic part 105 to separate the upper valve body 302 from the packing 103, thereby allowing the external air to enter the oil tank.
The first elastic part 105 may be a compression spring. Referring to fig. 2, 5 and 10, when the pressure in the oil storage tank is lower than the external atmospheric pressure, the stem holder 102 and the gasket 103 move downward due to the pressure difference, the first elastic part 105 is compressed, the upper valve body 302 is separated from the gasket 103, and the external gas can flow through the gap between the upper valve body 302 and the gasket 103, pass through the vacuum pressure cap 100, and enter the oil storage tank through the exhaust line, thereby balancing the pressure in the oil storage tank.
As an alternative embodiment, a second elastic portion 106 is further disposed in the outer casing 1, and a resisting portion 107 is disposed at a lower portion of the valve core rod 101, as shown in fig. 2, 5 and 10, where the resisting portion 107 includes a retainer ring fixedly disposed on the valve core rod 101; the second elastic part 106 is sleeved on the periphery of the valve core rod 101 and is positioned inside the first elastic part 105, the lower end of the second elastic part 106 abuts against the resisting part 107, and the upper end of the second elastic part abuts against the core rod bracket 102; the valve core rod 101 and the blocking piece 104 can move upwards under the pushing of the air pressure difference and compress the second elastic part 106, so that the blocking piece 104 is separated from the sealing gasket 103, and the air in the oil storage tank is released. The first elastic part 105 may be a compression spring.
When the pressure in the oil storage tank is higher than the external atmospheric pressure, the valve core rod 101 and the baffle plate 104 move upwards under the action of the air pressure difference, the baffle plate 104 is separated from the sealing gasket 103, and the gas in the oil storage tank can flow through the vacuum pressure cap 100 through the gap between the baffle plate 104 and the sealing gasket 103 and is discharged into the external atmosphere through the exhaust pipeline, so that the pressure in the oil storage tank is balanced.
The vacuum pressure cap 100 in this embodiment can maintain the pressure balance in the oil storage tank when the external atmospheric pressure is greater than the internal pressure of the oil storage tank and the external atmospheric pressure is less than the internal pressure of the oil storage tank.
In order to ensure the sealing performance of the structure, referring to fig. 2, when the vacuum pressure cap 100 is in a sealing state, that is, when the gas channel inside the vacuum pressure cap 100 is in a closed state, the upper valve body 2 is in sealing contact with the sealing gasket 103, the flap 104 is in sealing contact with the sealing gasket 103, the upper valve body 2 is sealed with the outer sleeve 1 by the first sealing ring 6, the flap 104 is sealed with the valve core rod 101 by the second sealing ring 7, and the mounting portion 11 is sealed with the conversion sleeve 3 or the exhaust pipeline by the third sealing ring 8.
EXAMPLE III
This embodiment is an improvement on the first and second embodiments, and the rain-proof and insect-proof performance of the vacuum pressure cap 100 is improved in this embodiment.
Referring to fig. 1 and 2, a vacuum pressure cap 100 of the present embodiment includes a rain blocking cap 4 and a rain blocking skirt 10, wherein:
the rain shielding skirt 10 is fixedly connected to the upper part of the upper valve body 302, and the outer peripheral wall of the rain shielding skirt 10 is obliquely arranged from top to bottom to the direction close to the axis of the upper valve body 302; the rain skirt 10 is configured to block rainwater and the like at the upper portion of the upper valve body 302, thereby preventing rainwater and the like from directly entering the vacuum pressure cap 100 from the upper portion of the upper valve body 302.
As an alternative embodiment, referring to fig. 2, an insect screen 5 is disposed in the rain cap 4, and the insect screen 5 is an annular structure disposed around the axis of the vacuum pressure cap 100. The structure of the insect-proof mesh enclosure 5 can play a 360-degree protection role in the vacuum pressure cap 100, and prevent flying insects and the like from entering the gas channel of the vacuum pressure cap.
Referring to fig. 2, a filter screen 9 is further provided in the vacuum pressure cap 100 to intercept impurities.
The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a vacuum pressure cap mounting structure which characterized in that, includes vacuum pressure cap, seal box and with the exhaust pipe way of oil storage tank intercommunication, wherein:
the vacuum pressure cap comprises an installation part and a conversion sleeve, the conversion sleeve is detachably connected with the installation part, and the vacuum pressure cap is communicated with the exhaust pipeline when being installed in place; wherein:
the conversion sleeve is detachably connected to the upper part of the exhaust pipeline; or, the seal box is fixed in the lower part of exhaust pipe, the installation department with seal box fixed connection in order to incite somebody to action the vacuum pressure cap is fixed in the seal box.
2. The vacuum pressure cap mounting structure according to claim 1, wherein the mounting portion includes an externally threaded portion that is threadedly connected with the seal cartridge;
the conversion sleeve comprises an internal thread sleeve, and the internal thread sleeve is in threaded connection with the external thread part or the exhaust pipeline.
3. The vacuum pressure cap mounting structure according to claim 1, wherein a valve body, a vent stand pipe, an upper flange, and a lower flange are provided on the vent line, wherein:
the upper flange is connected with the bottom of the exhaust vertical pipe, and the lower flange is connected with the top of the valve body;
the upper flange is fixedly connected with the lower flange, and the conversion sleeve is detachably connected to the upper part of the exhaust vertical pipe; or the sealing box is positioned between the upper flange and the lower flange and fixedly connected with the upper flange and the lower flange, and the top of the exhaust vertical pipe is provided with a rainproof and insect-proof cap.
4. The vacuum pressure cap mounting structure according to claim 1 or 3, wherein the seal box includes a box body and a lid body, wherein:
the box body is detachably connected with the exhaust pipeline, an assembly opening communicated with the exhaust pipeline is formed in the box body, the mounting part extends into the assembly opening, is fixedly connected with the assembly opening and is in sealing contact with the assembly opening, and the vacuum pressure cap is fixed in the box body;
one side of the box body is provided with an open side, and the cover body is detachably connected to the open side.
5. The vacuum pressure cap mounting structure according to claim 4, wherein the inner lower end of the cartridge body is provided with a sump provided at a periphery of the fitting opening.
6. A vacuum pressure cap mounting arrangement according to claim 4, wherein the vacuum pressure cap includes a flame arrestor fixedly attached to a lower portion of the mounting section and located within the mounting opening.
7. The vacuum pressure cap mounting structure according to claim 1 or 6, wherein the vacuum pressure cap comprises an upper valve body and an outer sleeve, a lower portion of the upper valve body extends into the outer sleeve and is fixedly connected with the outer sleeve, and the mounting portion is located at a lower portion of the outer sleeve;
be provided with case pole, core bar support, sealed pad, separation blade and first elasticity portion in the overcoat body, wherein:
the valve core rod penetrates through the core rod support and is fixedly connected with the core rod support, the blocking piece is fixed at the top of the valve core rod, the sealing gasket is fixed at the upper part of the core rod support, and when the vacuum pressure cap is in a sealing state, the upper valve body is in sealing contact with the sealing gasket, and the blocking piece is in sealing contact with the sealing gasket;
a stop part is arranged at the lower part in the outer sleeve body, the first elastic part is positioned at the periphery of the valve core rod, the lower end of the first elastic part is abutted against the stop part, and the upper end of the first elastic part is abutted against the core rod bracket; the sealing gasket and the core rod support can move downwards under the pushing of air pressure difference and compress the first elastic part, so that the upper valve body is separated from the sealing gasket, and then outside air enters the oil storage tank.
8. The vacuum pressure cap mounting structure according to claim 7, wherein a second elastic portion is further disposed in the outer housing, a resisting portion is disposed at a lower portion of the valve core rod, the second elastic portion is disposed at a periphery of the valve core rod and located inside the first elastic portion, a lower end of the second elastic portion abuts against the resisting portion, and an upper end of the second elastic portion abuts against the core rod bracket; the valve core rod and the blocking piece can move upwards under the pushing of air pressure difference and compress the second elastic part, so that the blocking piece is separated from the sealing gasket, and further, the gas in the oil storage tank is released.
9. The vacuum pressure cap mounting structure of claim 7, wherein the vacuum pressure cap comprises a rain shield and a rain skirt, wherein:
the rain shielding skirt is fixedly connected to the upper part of the upper valve body, and the outer peripheral wall of the rain shielding skirt is obliquely arranged from top to bottom in the direction close to the axis of the upper valve body;
the rain-proof cap is fixed on the upper portion of the rain-proof skirt, a collecting groove and a rain falling port are formed in the top of the rain-proof cap, and the rain falling port is communicated with the collecting groove.
10. The vacuum pressure cap mounting structure of claim 9, wherein an insect screen is disposed within the rain shield, the insect screen being an annular structure disposed about an axis of the vacuum pressure cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221642932.2U CN217815189U (en) | 2022-06-27 | 2022-06-27 | Vacuum pressure cap mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221642932.2U CN217815189U (en) | 2022-06-27 | 2022-06-27 | Vacuum pressure cap mounting structure |
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| CN217815189U true CN217815189U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221642932.2U Active CN217815189U (en) | 2022-06-27 | 2022-06-27 | Vacuum pressure cap mounting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906594A (en) * | 2023-09-12 | 2023-10-20 | 山东天成阀门制造有限公司 | Large-caliber butterfly valve with flow regulating device |
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2022
- 2022-06-27 CN CN202221642932.2U patent/CN217815189U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906594A (en) * | 2023-09-12 | 2023-10-20 | 山东天成阀门制造有限公司 | Large-caliber butterfly valve with flow regulating device |
| CN116906594B (en) * | 2023-09-12 | 2023-11-28 | 山东天成阀门制造有限公司 | Large-caliber butterfly valve with flow regulating device |
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