CN112344033A - Pressure relief valve dismounting-free test valve device - Google Patents
Pressure relief valve dismounting-free test valve device Download PDFInfo
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- CN112344033A CN112344033A CN202011217596.2A CN202011217596A CN112344033A CN 112344033 A CN112344033 A CN 112344033A CN 202011217596 A CN202011217596 A CN 202011217596A CN 112344033 A CN112344033 A CN 112344033A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a pressure relief valve disassembly-free test valve device, which comprises a test valve, a pressure relief valve and a pressure relief valve, wherein the test valve comprises a valve body, a disc and a rotating shaft, the valve body is provided with a through hole and a rotating hole along the radial direction of the through hole, and the rotating shaft is positioned in the rotating hole and connected with the disc; one end of the valve body is connected with a connecting assembly which comprises a first flange connected with the valve body, an adapter pipe connected with the first flange and a second flange connected with the adapter pipe, and the first flange and the second flange are both in threaded connection with the adapter pipe; the valve body is provided with an inflation hole and an oil drain hole which penetrate through the valve body along the radial direction, the inflation hole is provided with an inflation quick connector, and the oil drain hole is provided with an oil drain assembly; the inflation quick connector comprises an adapter connected with the inflation hole, a quick connector male head connected with the adapter, and a protective cap connected with the quick connector male head, the quick connector male head is provided with an air inlet, a valve core is arranged in the air inlet, and an elastic piece is connected between the valve core and the adapter; the invention can carry out the pressure test on various pressure relief valves under the condition of not being disassembled.
Description
Technical Field
The invention relates to the field of pressure relief valves, in particular to a disassembly-free test valve device of a pressure relief valve.
Background
A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), and the like; a pressure relief valve is a pressure protection device for a transformer. When the inside of the transformer breaks down, oil is decomposed to generate a large amount of gas, and because the transformer is basically closed, a connecting pipe for communicating an oil conservator is thin, the pressure cannot be effectively and rapidly reduced only by a small connecting pipe, the pressure in an oil tank is rapidly increased, and the oil tank of the transformer can be cracked. The pressure release valve is opened in time, part of transformer oil is discharged, the pressure in the oil tank is reduced, and after the pressure in the oil tank is reduced, the pressure release valve is automatically closed and the sealing of the oil tank is kept. In the prior art, when the pressure relief valve is tested, the pressure relief valve needs to be disassembled for testing, and then is installed after the testing is finished, so that the operation is complex, and the efficiency is low.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.
Therefore, the technical problems to be solved by the invention are that in the prior art, when the pressure relief valve is tested, the pressure relief valve needs to be disassembled for testing, and then is installed after the testing is finished, so that the operation is complicated, and the efficiency is low.
In order to solve the technical problems, the invention provides the following technical scheme: a pressure release valve disassembly-free test valve device comprises a test valve, a pressure release valve and a pressure release valve, wherein the test valve comprises a valve body, a disc and a rotating shaft, the valve body is provided with a through hole and a rotating hole along the radial direction of the through hole, the rotating shaft is positioned in the rotating hole and connected with the disc, and the disc is positioned in the through hole; one end of the valve body is connected with a connecting assembly which comprises a first flange connected with the valve body, a switching pipe connected with the first flange and a second flange connected with the switching pipe, and the first flange and the second flange are both in threaded connection with the switching pipe; the valve body is provided with an inflation hole and an oil drain hole which penetrate through the valve body along the radial direction, the inflation hole is provided with an inflation quick connector, and the oil drain hole is provided with an oil drain assembly; aerify and connect soon include with aerify the adapter that the hole is connected, with the public head of connecing soon that the adapter is connected, and with the protective cap that connects soon that connects public head and connect soon, the public head of connecing soon is provided with the air inlet, be provided with the case in the air inlet, the case with be connected with the elastic component between the adapter.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: one end of the rotating hole extends along the radial direction to form an accommodating hole, a shaft shoulder is arranged on the part of the rotating shaft in the accommodating hole, a limiting groove is formed in the bottom of the accommodating hole, a limiting boss is arranged on the shaft shoulder, the limiting boss is embedded into the limiting groove, and the limiting groove is a quarter annular groove.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: the one end that the pivot is located the holding hole is provided with the helicla flute, the route of helicla flute uses the pivot as the axle center, the downthehole regulating part that is provided with of holding, the regulating part is provided with the regulation hole that runs through, be provided with the arch in the regulation hole, the arch is embedded into in the helicla flute, the regulating part is provided with the guide block along the axial, the holding hole is provided with the guide way along the axial, the guide block is located in the guide way.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: a first spring is arranged between the adjusting piece and the shaft shoulder.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: the guide block is provided with a reset groove and a positioning groove along the axial direction, the reset groove is connected with the positioning groove in a head position, a plurality of connected limiting steps are arranged in the positioning groove, the limiting steps are divided into a limiting surface and a guide surface, the limiting surface is parallel to the end surface of the adjusting part, and an included angle between the limiting surface and the guide surface is an acute angle; the guide groove is provided with a sliding groove along the radial direction of the containing hole, a sliding block and a limiting pin are arranged in the sliding groove, a second spring is arranged between one side of the sliding block and the bottom of the sliding groove, a sliding rail is arranged on the other side of the sliding block, a sliding rail groove is formed in one end of the limiting pin and connected with the sliding rail, and the other end of the limiting pin extends into the guide block.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: the reset groove is divided into a first end and a second end, the depth of the first end is larger than that of the positioning groove, and the depth of the second end is smaller than that of the positioning groove.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: the first end is excessively connected with a positioning groove end arc, and the second end is excessively connected with a positioning groove end arc.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: one end of the rotating shaft is connected with a limiting nut, and the profile of the limiting nut is larger than the cross section profile of the adjusting hole.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: the valve body is characterized in that a sealing ring groove is formed in one end face of the valve body, a threaded hole is formed in the valve body, and a sealing ring is connected to the circumference of the disc.
As a preferable aspect of the disassembly-free test valve device for a pressure relief valve according to the present invention, wherein: the oil drain assembly comprises an oil drain valve connected with the oil drain hole and a protective sleeve connected with the oil drain valve.
The invention has the beneficial effects that: the invention carries out the pressure test on the pressure relief valve under the condition of not being disassembled, has simple operation and improves the test efficiency; and can be connected for different types of pressure relief valve flanges.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic structural diagram of a disassembly-free test valve assembly for a pressure relief valve according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a coupling assembly of a disassembly-free test valve assembly of a pressure relief valve according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an inflation quick connection in a disassembly-free test valve assembly of a pressure relief valve according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an oil drain assembly of a disassembly-free test valve assembly of a pressure relief valve according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a valve body of a disassembly-free test valve assembly of a pressure relief valve according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a rotating shaft of a disassembly-free test valve assembly of a pressure relief valve according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a disassembly-free test valve assembly for a pressure relief valve according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of an adjustment member of a disassembly-free test valve assembly for a pressure relief valve according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram illustrating a positioning principle of a disassembly-free test valve assembly of a pressure relief valve according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a disassembly-free test valve device for a pressure relief valve, comprising
Mainly aiming at the pressure relief valve of the transformer, the pressure relief valve is subjected to a pressure test under the condition of not being disassembled. Specifically, the test valve 100 comprises a valve body 101, a disc 102 and a rotating shaft 103, wherein the valve body 101 is integrally a cylindrical valve body 101 provided with a through hole 101a and a rotating hole 101b along the radial direction of the through hole 101a, the through hole 101a is a circular hole, the disc 102 is in a disc shape, and the disc 102 is positioned in the through hole 101 a; when the disc 102 is coaxial with the through hole 101a, the disc 102 can seal the valve body 101, the rotating shaft 103 is located in the rotating hole 101b and connected with the disc 102, the rotating shaft 103 can rotate in the rotating hole 101b, and the connecting mode of the rotating shaft 103 and the disc 102 is a bolt connection. The valve body 101 is provided with an inflation hole 101c and an oil drain hole 101d which penetrate through along the radial direction, the inflation hole 101c is provided with an inflation quick connector 300, the oil drain hole 101d is provided with an oil drain assembly 400, the inflation quick connector 300 and the oil drain assembly 400 are both in the prior art, and the inflation quick connector 300 is a special quick connector for testing an inflation valve.
Furthermore, the sizes of the connecting flanges of the pressure relief valves of the transformers in different models are different, but for the uniform standardization of the test valves, the size of the valve body 101 is not changed,
one end of the valve body 101 is connected with a connecting assembly 200, the connecting assembly 200 is used for connecting transformer pressure release valves of different models, so that the connecting assembly 200 comprises a first flange 201 connected with the valve body 101, an adapter tube 202 connected with the first flange 201, and a second flange 203 connected with the adapter tube 202, a flange sheet of the first flange 201 is matched with the end face of the valve body 101, the adapter tube 202 is used for connecting the first flange 201 and the second flange 203, and the second flange 203 can be produced according to the size of a common transformer pressure release valve connecting flange, so that the cost for changing the size of the second flange 203 is obviously less than the cost for changing the valve body 101; the first flange 201 and the second flange 203 are both in threaded connection with the adapter tube 202 and are sealed, and the length of the connecting assembly 200 can be adjusted by adopting threaded connection according to different field conditions so as to adapt to the field conditions.
Further, the joint of the gas-filled quick connector 300 is mainly used for gas filling in the test process, and oil leakage cannot occur from the gas-filled quick connector 300. The inflation quick connector 300 comprises an adapter 301 connected with the inflation hole 101c, a quick connector male 302 connected with the adapter 301, and a protective cap 303 connected with the quick connector male 302, wherein the quick connector male 302 is provided with an air inlet 302a, a valve core 304 is arranged in the air inlet 302a, an elastic piece 305 is connected between the valve core 304 and the adapter 301, the diameter of the valve core 304 is smaller than that of the air inlet 302a, and the elastic piece 305 is a pressure spring; then, when the valve body 101 is inflated, the valve body 304 is pushed by the air pressure, and when the inflation is stopped, the elastic member 305 can rapidly rebound to close the intake port 302 a.
When pressure test is carried out, the groove face with the sealing ring of the valve body 101 is connected with a flange face of a transformer, the groove face without the sealing ring is connected with the connecting assembly 200 and then connected with a pressure relief valve of the transformer, the oil is discharged firmly by using bolts of M16, the disc 102 is rotated to be in a coaxial state with the through hole 101a, namely, the valve body 101 is closed, the inflating quick connector 300 is opened, the DN8 oil pipe is connected to an oil storage tank, the inflating quick connector 300 is connected with a special conversion joint, and the valve body 101 is inflated, wherein the pressure is less than 0.02MPa, and oil discharge is carried out. After the oil drainage is finished, the oil drainage assembly 400 is closed, the inflation quick connector 300 is connected, an inflation test is carried out, after the test is finished, the inflation quick connector 300 is pulled out, a protective cap is arranged, and the valve body 101 is opened, namely the rotating shaft 103 and the disc 102 are rotated to open the through hole 101 a.
In this embodiment, through coupling assembling 200 is applicable in the transformer pressure relief valve of multiple model, accomplish the test to the valve body under the condition of need not dismantling.
Example 2
Referring to fig. 1 to 9, a second embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment in that: the disc 102 needs to be locked when opening or closing the through hole 101a of the valve body 101. One end of the rotating hole 101b extends radially to form a containing hole 101e, the diameter of the containing hole 101e is larger than that of the rotating hole 101b, a shoulder 103a is arranged on the part of the rotating shaft 103 located in the containing hole 101e, the diameter of the shoulder 103a is larger than that of the rotating shaft 103 and the rotating hole 101b, furthermore, a limiting groove 101f is arranged at the bottom of the containing hole 101e, a limiting boss 103b is arranged on the shoulder 103a, the limiting boss 103b is embedded into the limiting groove 101f, the limiting groove 101f is a quarter circular groove, namely, the arc angle of the limiting groove 101f is 90 degrees, namely, the relative rotating angle between the rotating shaft 103 and the rotating hole 101b is 0-90 degrees, the limiting boss 103b is located at one end of the limiting groove 101f, at the moment, the disc 102 and the through hole 101a are coaxially sealed, when the rotating angle is 90 degrees, the axis of the disc 102 is perpendicular to the through hole 101a, the stopper boss 103b is located at the other end of the stopper groove 101f, and has the largest flow rate through the through hole 101 a.
Furthermore, a spiral groove 103c is arranged at one end of the rotating shaft 103, which is located in the accommodating hole 101e, the path of the spiral groove 103c takes the rotating shaft 103 as an axis and is spiral, an adjusting part 104 is arranged in the accommodating hole 101e, the adjusting part 104 is provided with an adjusting hole 104a which penetrates through the adjusting hole and is sleeved on the rotating shaft 103, a protrusion 104b is arranged in the adjusting hole 104a, the protrusion 104b is embedded into the spiral groove 103c, the adjusting part 104 is axially provided with a guide block 104c, the accommodating hole 101e is axially provided with a guide groove 101g, and the guide block 104c is located in the guide groove 101g and can limit the rotation of the adjusting part 104, so that the adjusting part 104 can only move along the axial direction, and when the adjusting part 104 moves, the protrusion 104b is matched with the spiral groove 103c to convert the linear motion into the circular motion, and the rotating; preferably, a first spring a is disposed between the adjusting member 104 and the shoulder 103a, the first spring a is a pressure spring, and the pressure of the first spring a makes the adjusting member 104 located at a position away from the shoulder 103a, in this state, the disc 102 and the through hole 101a are coaxial to block the through hole 101a, and the disc 102 can be rotated only when the adjusting member 104 is pushed.
Preferably, the surface of the adjusting member 104 is provided with a scale along the axis, so that the opening angle of the disc 102 can be observed in real time.
Further, when the disc 102 needs to be locked at a certain position, the guide block 104c is provided with a reset groove 104d and a positioning groove 104e along the axial direction, the reset groove 104d and the positioning groove 104e are arranged in parallel and have the same width, wherein the reset groove 104d and the positioning groove 104e are connected at the head to form a loop, the positioning groove 104e is internally provided with a plurality of connected limiting steps 104f, the limiting steps 104f are in a ratchet strip shape, the limiting steps 104f are divided into a limiting surface 104g and a guide surface 104h, the limiting surface 104g is parallel to the end surface of the adjusting piece 104 to limit the limiting pin 107, the limiting step 104f can enable the guide surface 104h to move along the limiting pin 107, and the included angle between the limiting surface 104g and the guide surface 104h is an acute angle.
Further, the guide groove 101g is provided with a slide groove 101i along the radial direction of the accommodating hole 101e, the slide block 106 and the limit pin 107 are arranged in the slide groove 101i, a second spring B is arranged between one side of the slide block 106 and the bottom of the slide groove 101i, the second spring B is a pressure spring, and the slide block 106 can move along the radial direction of the accommodating hole 101e in the slide groove 101 i.
The other side of the sliding block 106 is provided with a sliding rail 106a, one end of the limit pin 107 is provided with a sliding rail groove 107a, the sliding rail groove 107a is connected with the sliding rail 106a, so that the limit pin 107 can move linearly along the sliding rail 106a, and the other end of the limit pin 107 extends into the guide block 104 c.
Preferably, the reset groove 104d is divided into a first end 104d-1 and a second end 104d-2, the first end 104d-1 is the end far away from the disc 102, the depth of the first end 104d-1 is greater than that of the positioning groove 104e, the depth of the second end 104d-2 is less than that of the positioning groove 104e, and the connection between the reset groove 104d and the positioning groove 104e is smooth. First end 104d-1 is in arcuate transition with one end of detent 104e, and second end 104d-2 is in arcuate transition with one end of detent 104 e.
Therefore, in the initial state, the disc 102 and the through hole 101a are coaxial to make the valve body 101 in the closed state, and at this time, one end of the limit pin 107 is located at one end of the positioning groove 104e close to the disc 102, when the angle of the disc 102 needs to be adjusted, the adjusting piece 104 is pushed, firstly, because the depth of the second end 104d-2 is smaller than that of the positioning groove 104e, the limit pin 107 can be located in the positioning groove 104e, and the limit pin 107 passes through the limiting steps 104f while pushing, and simultaneously, the adjusting piece 104 enables the rotating shaft 103 to rotate and further the disc 102 to rotate, and can be located at a certain position within 0-90 degrees, because one end of the limit pin 107 abuts against the limiting surface 104g, when the adjusting piece 104 is continuously pushed to enable the disc 102 to rotate to the maximum angle of 90 degrees, the limit pin 107 is embedded on the limiting step 104f at the tail end, namely, the through; when the through hole 101a needs to be closed, the adjusting member 104 is continuously pushed, at this time, one end of the limit pin 107 passes through the arc-shaped groove at the joint of the reset groove 104d and the positioning groove 104e and moves into the first end 104d-1 along the slide rail 106a, the limit pin 107 is located in the reset groove 104d, so that the adjusting member 104 is not limited at this time, the adjusting member 104 completes the initial reset under the action of the first spring a, and the limit pin 107 moves from the second end 104d-2 to the other end of the positioning groove 104e, at this time, the through hole 101a is locked in a closed state.
Furthermore, in order to prevent the adjusting part 104 from falling off, one end of the rotating shaft 103 is connected with a limiting nut 108, the profile of the limiting nut 108 is larger than the cross-sectional profile of the adjusting hole 104a, when the adjusting part 104 is installed, the adjusting part 104 is installed firstly, so that the protrusion 104b is embedded into the spiral groove 103c, and then the limiting nut 108 is installed.
It should be noted that the oil drain assembly 400 is a prior art, and includes an oil drain valve 401 connected to the oil drain hole 101d, and a protective cover 402 connected to the oil drain valve 401.
Preferably, one end face of the valve body 101 is provided with a seal ring groove 101j, the seal ring groove 101j can be sealed according to rubber, the seal ring groove 101j of the valve body 101 is connected with a transformer flange face, the other end face is connected with a transformer pressure relief valve through the connecting assembly 200, the valve body 101 is further provided with a threaded hole 101k, and the disc 102 is circumferentially connected with the seal ring 109.
This embodiment can be when carrying out the pressure release valve and suppress the experiment, need not dismantle, and can test according to the flow size of actual demand regulating valve body 101.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a pressure relief valve exempts from to dismantle test valve device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the test valve (100) comprises a valve body (101), a disc (102) and a rotating shaft (103), wherein the valve body (101) is provided with a through hole (101a) and a rotating hole (101b) along the radial direction of the through hole (101a), the rotating shaft (103) is positioned in the rotating hole (101b) and connected with the disc (102), and the disc (102) is positioned in the through hole (101 a);
one end of the valve body (101) is connected with a connecting assembly (200) which comprises a first flange (201) connected with the valve body (101), an adapter pipe (202) connected with the first flange (201), and a second flange (203) connected with the adapter pipe (202), wherein the first flange (201) and the second flange (203) are in threaded connection with the adapter pipe (202);
the valve body (101) is provided with an inflation hole (101c) and an oil drain hole (101d) which penetrate through the valve body in the radial direction, the inflation hole (101c) is provided with an inflation quick connector (300), and the oil drain hole (101d) is provided with an oil drain assembly (400);
aerify and connect (300) soon include with adapter (301) that gas charging hole (101c) are connected, with the public head (302) of connecing soon that adapter (301) are connected, and with protective cap (303) that the public head (302) of connecing soon are connected, the public head (302) of connecing soon is provided with air inlet (302a), be provided with case (304) in air inlet (302a), case (304) with be connected with elastic component (305) between adapter (301).
2. The pressure relief valve disassembly-free test valve assembly as recited in claim 1, wherein: one end of the rotating hole (101b) extends along the radial direction to form a containing hole (101e), a shaft shoulder (103a) is arranged on the part, located in the containing hole (101e), of the rotating shaft (103), a limiting groove (101f) is formed in the bottom of the containing hole (101e), a limiting boss (103b) is arranged on the shaft shoulder (103a), the limiting boss (103b) is embedded into the limiting groove (101f), and the limiting groove (101f) is a quarter circular groove.
3. The pressure relief valve disassembly-free test valve assembly of claim 1 or 2, wherein: one end of the rotating shaft (103) located in the accommodating hole (101e) is provided with a spiral groove (103c), the path of the spiral groove (103c) takes the rotating shaft (103) as an axis, an adjusting piece (104) is arranged in the accommodating hole (101e), the adjusting piece (104) is provided with a penetrating adjusting hole (104a), a protrusion (104b) is arranged in the adjusting hole (104a), the protrusion (104b) is embedded into the spiral groove (103c), the adjusting piece (104) is provided with a guide block (104c) along the axial direction, the accommodating hole (101e) is provided with a guide groove (101g) along the axial direction, and the guide block (104c) is located in the guide groove (101 g).
4. The pressure relief valve disassembly-free test valve assembly as recited in claim 3, wherein: a first spring (A) is arranged between the adjusting piece (104) and the shaft shoulder (103 a).
5. The pressure relief valve disassembly-free test valve assembly as recited in claim 4, wherein: the guide block (104c) is provided with a reset groove (104d) and a positioning groove (104e) along the axial direction, the reset groove (104d) is connected with the positioning groove (104e) in the head position, a plurality of connected limiting steps (104f) are arranged in the positioning groove (104e), the limiting steps (104f) are divided into a limiting surface (104g) and a guide surface (104h), the limiting surface (104g) is parallel to the end surface of the adjusting part (104), and an included angle between the limiting surface (104g) and the guide surface (104h) is an acute angle;
the guide groove (101g) is provided with a sliding groove (101i) along the radial direction of the containing hole (101e), a sliding block (106) and a limiting pin (107) are arranged in the sliding groove (101i), a second spring (B) is arranged between one side of the sliding block (106) and the bottom of the sliding groove (101i), a sliding rail (106a) is arranged on the other side of the sliding block (106), a sliding rail groove (107a) is formed in one end of the limiting pin (107), the sliding rail groove (107a) is connected with the sliding rail (106a), and the other end of the limiting pin (107) extends into the guide block (104 c).
6. The pressure relief valve disassembly-free test valve assembly as recited in claim 5, wherein: the reset groove (104d) is divided into a first end (104d-1) and a second end (104d-2), the depth of the first end (104d-1) is larger than that of the positioning groove (104e), and the depth of the second end (104d-2) is smaller than that of the positioning groove (104 e).
7. The pressure relief valve disassembly-free test valve assembly as recited in claim 6, wherein: the first end (104d-1) is in arc transition connection with one end of the positioning groove (104e), and the second end (104d-2) is in arc transition connection with one end of the positioning groove (104 e).
8. The pressure relief valve disassembly-free test valve assembly as recited in claim 7, wherein: one end of the rotating shaft (103) is connected with a limiting nut (108), and the profile of the limiting nut (108) is larger than the cross section profile of the adjusting hole (104 a).
9. The pressure relief valve disassembly-free test valve assembly as recited in claim 8, wherein: a sealing ring groove (101j) is formed in one end face of the valve body (101), a threaded hole (101k) is formed in the valve body (101), and a sealing ring (109) is connected to the circumference of the disc (102).
10. The pressure relief valve disassembly-free test valve assembly as recited in claim 9, wherein: the oil drain assembly (400) comprises an oil drain valve (401) connected with the oil drain hole (101d), and a protective sleeve (402) connected with the oil drain valve (401).
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| CN202011217596.2A CN112344033B (en) | 2020-11-04 | 2020-11-04 | Pressure relief valve dismounting-free test valve device |
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| CN202011217596.2A CN112344033B (en) | 2020-11-04 | 2020-11-04 | Pressure relief valve dismounting-free test valve device |
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| CN112344033B CN112344033B (en) | 2022-08-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113931746A (en) * | 2021-08-30 | 2022-01-14 | 华能南京燃机发电有限公司 | Gas turbine air inlet unit |
| CN113931749A (en) * | 2021-08-30 | 2022-01-14 | 华能南京燃机发电有限公司 | Combustion engine air inlet heating system |
| CN114182957A (en) * | 2021-12-29 | 2022-03-15 | 新疆维泰开发建设（集团）股份有限公司 | Device for blocking stubbles of high-low grade concrete air bags of beam column sections and construction method thereof |
| CN114670907A (en) * | 2022-03-04 | 2022-06-28 | 贵州电网有限责任公司 | Gas leakage prevention device for gas cylinder carrying |
| CN115370842A (en) * | 2022-07-31 | 2022-11-22 | 华能澜沧江水电股份有限公司 | Connecting device applied to cooling pipeline of water turbine |
| CN118009221A (en) * | 2024-03-08 | 2024-05-10 | 泰州市航仪消防装备有限公司 | Inflation control device of inflation bottle for rescue lifting air cushion |
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| CN118009221A (en) * | 2024-03-08 | 2024-05-10 | 泰州市航仪消防装备有限公司 | Inflation control device of inflation bottle for rescue lifting air cushion |
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|---|---|
| CN112344033B (en) | 2022-08-09 |
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