CN111520480B - Valve device and method for manufacturing the same - Google Patents
Valve device and method for manufacturing the same Download PDFInfo
- Publication number
- CN111520480B CN111520480B CN201910108673.1A CN201910108673A CN111520480B CN 111520480 B CN111520480 B CN 111520480B CN 201910108673 A CN201910108673 A CN 201910108673A CN 111520480 B CN111520480 B CN 111520480B
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- throttling
- throttle
- hole
- valve
- valve device
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- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 title abstract description 9
- 230000000903 blocking effect Effects 0.000 claims description 37
- 238000002788 crimping Methods 0.000 claims description 9
- 238000005219 brazing Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 239000003507 refrigerant Substances 0.000 description 21
- 238000003466 welding Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
The invention provides a valve device and an assembly method, wherein the valve device comprises a valve body and a valve rod, the valve body comprises a body part, a first interface part and a second interface part, the valve body comprises a valve opening part, the valve opening part is provided with a valve port, the valve device comprises a first channel and a second channel, and the valve port can be communicated with the first channel and the second channel; the inside of first interface portion or second interface portion is fixed to be provided with throttling part, throttling part includes first throttling part and second throttling part, first throttling part is provided with first orifice, second throttling part is provided with the second orifice, first orifice runs through throttling part, and the both ends of first orifice all can with the second passageway intercommunication, the second orifice runs through throttling part, and the both ends of second orifice all can with the second passageway intercommunication, throttling part is provided with at least one shutoff portion, shutoff portion can shutoff first orifice or second orifice.
Description
Technical Field
The invention relates to the technical field of refrigeration systems, in particular to a valve device and a manufacturing method thereof.
Background
In an air conditioning system, a valve device is mainly used for connecting an indoor unit and an outdoor unit to control on-off of a refrigerant. When the valve device is in the valve opening state, the refrigerant passage is in the circulation state; when the valve device is in the valve-closed state, the refrigerant passage is in the shut-off state.
The air conditioning system is also provided with a throttling component to realize throttling functions, such as a main capillary tube, an auxiliary capillary tube, a one-way valve and the like.
The valve device and the throttling filter device can be relatively independent components in the pipeline of the air conditioning system and are respectively connected with the pipeline of the air conditioning system; a valve core with a throttling through hole can be arranged in a valve cavity of the valve device, so that the valve core can move up and down in the valve device to realize the throttling function.
The invention aims to provide a novel valve core structure with a throttling function, so that a valve device can control throttling precision of different flow directions.
Disclosure of Invention
The object of the present invention is to provide a new valve device with throttling function, which can control the throttling precision of different flow directions.
To this end, the present invention provides a valve device characterized by comprising a valve body and a valve stem, the valve body comprising a body portion, a first interface portion and a second interface portion, the valve body comprising a valve port portion provided with a valve port, the valve device comprising a first passage and a second passage, the valve port being capable of communicating the first passage and the second passage; the inside of first interface portion or second interface portion is fixed to be provided with throttling part, throttling part includes first throttling part and second throttling part, first throttling part is provided with first orifice, second throttling part is provided with the second orifice, first orifice runs through throttling part, and the both ends of first orifice all can with the second passageway intercommunication, the second orifice runs through throttling part, and the both ends of second orifice all can with the second passageway intercommunication, throttling part is provided with at least one shutoff portion, shutoff portion can shutoff first orifice or second orifice.
The valve device provided by the invention can set different throttling precision when the refrigerant flows forward or backward according to the needs of a system.
On the basis, the invention also provides an assembling method of the valve device.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the appearance of a throttling part according to a first embodiment of the present invention;
Fig. 4 is an external view of a first limiting portion according to a first embodiment of the present invention;
FIG. 5 is a schematic diagram of a second embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a schematic diagram of a third embodiment of the present invention;
FIG. 8 is a schematic diagram of a fourth embodiment of the present invention;
Fig. 9 is a partial enlarged view of fig. 8.
Detailed Description
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
[ First embodiment ]
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a first embodiment of the present invention; fig. 2 is a partial enlarged view of fig. 1.
It should be noted that, the horizontal, vertical, upper, lower, etc. terms are defined based on the mutual positional relationship of the components in the drawings and between the components in fig. 1 to 7, and the use of the terms is only for convenience in describing the technical solution, and it should be understood that the use of the terms does not limit the scope of protection.
The valve device provided by the embodiment comprises a valve body 1 and a valve rod 2; the valve body 1 includes a body 10, a first interface 11, and a second interface 12. The body 10, the first interface 11, and the second interface 12 may be integrally forged from a metal material such as brass, and configured as a cylindrical body 10, and the first interface 11 may also be substantially cylindrical, and the extending direction of the central axis thereof may be set substantially perpendicular to the extending direction of the central axis of the body 10, which corresponds to the first interface 11 extending in the radial direction of the body 10. The second interface portion 12 extends downward along the body portion 10. The valve body 1 includes a valve opening 13, and the valve opening 13 is formed in the valve body 1, and may be defined by the valve opening 13, with a valve body portion located above the valve opening 13 being defined as a main body portion, and a valve body portion located below the valve opening 13 being defined as a second interface portion. It should be noted that, since the body 10, the first interface 11, and the second interface 12 may be formed by forging using a single material, there is no strict limitation between the three, and the above description is only for convenience of description of the structure of the present embodiment.
The valve device further includes a valve stem 2, the valve stem 2 being provided inside the valve body 1 and being screw-fitted with an inner wall of the valve body so that the valve stem 2 can be displaced in an axial direction of the body portion 10.
Thus, the valve device forms the first passage 111 and the second passage 112 in the interior of the valve body 1, and the valve port 131 can communicate with the first passage 111 and the second passage 112. The valve opening 13 is provided with a valve port 131, when the valve rod 2 is operated to move downwards, the valve rod 2 is abutted against the valve opening 13, the valve port 131 is closed, the first channel 111 and the second channel 112 are not communicated, and the valve device is in a closed state; when the valve stem 2 is operated to move upward so that the valve stem 2 is away from the valve opening portion 13, the valve port 131 is opened, communication between the first passage 111 and the second passage 112 is made, and the valve device is in an open state.
A valve cap 5 may be further provided above the body 10, and the valve cap 5 may be fixed to the valve body 1 by screw-fitting, and the valve cap 5 may prevent dust from entering the valve device and may also function as a seal.
The first interface 11 and the second interface 12 may be fixedly connected to external flow pipes, respectively, to connect the valve device to the system pipeline. In this embodiment, the second interface portion 12 is fixedly connected with the adapter portion 14. The adapter part 14 may be connected to the air conditioning system by welding or the like. The first interface 11 may be connected to a system pipeline by a connection joint.
In the present embodiment, the throttle portion 3 is fixedly provided inside the second interface portion 12, the throttle portion 3 includes the first throttle portion 31 and the second throttle portion 32, and the throttle portion 3 is located below the valve portion 13. It should be noted that, in this embodiment and other embodiments described below, the throttle portion 3 is disposed inside the second interface portion 12, and those skilled in the art will understand that the throttle portion 3 may be disposed inside the first interface portion 11 completely, and the object of the present invention may be achieved.
Referring to fig. 3 together, fig. 3 is a schematic view of the appearance of a throttling part according to a first embodiment of the present invention. As shown in fig. 2 or 3, the throttle portion 3 is substantially cylindrical and includes a first throttle portion 31 and a second throttle portion 32, wherein the first throttle portion 31 is provided with a first throttle hole 311 and the second throttle portion 32 is provided with a second throttle hole 321. The first orifice 311 penetrates the throttle portion 3, and both ends of the first orifice 311 can communicate with the second passage 112, i.e., it can be understood that the throttle portion 3 is located inside the second passage 112. The second orifice 321 also penetrates the throttle portion 3, and both ends of the second orifice 321 can communicate with the second passage 112. The throttle 3 is further provided with at least one blocking portion capable of blocking the first throttle hole 311 or the second throttle hole 321 in a specific operation state so that the corresponding throttle hole is in a blocked state, and when the valve port 131 of the valve device is in an open state, at least one of the first throttle hole 311 and the second throttle hole 321 is in a passage state.
The first orifice 311 includes a first small-diameter hole 3111 and a first large-diameter hole 3112, wherein the first small-diameter hole 3111 is provided on a side of the throttle 3 facing away from the valve opening 13, and the first large-diameter hole 3112 is provided on a side of the throttle 3 facing the valve opening, i.e., an upper end of the throttle 3 shown in fig. 1, at a lower end of the throttle 3 shown in fig. 1. The first throttle port 312 is provided between the first large-diameter hole 3112 and the first small-diameter hole 3111, and specifically, a generally truncated-cone-shaped step may be provided in the first throttle hole as a transition between the first small-diameter hole 3112 and the first large-diameter hole 3112, and the first throttle port 312 may be formed at the step. The first blocking portion 313 is spherical and is located on the side of the throttle 3 facing the valve opening 13. When the first blocking portion 313 moves downward by the refrigerant pressure, the first throttle valve port 312 may be closed, thereby putting the first throttle hole 311 in a blocked state. The first plugging portion 313 is at least partially located in the first large-diameter hole 3112, and in the schematic illustration of this embodiment, the first plugging portion 313 is entirely located in the first large-diameter hole 3112, however, those skilled in the art can make simple changes based on this, such as increasing the inner diameter of the first large-diameter hole and increasing the volume of the first plugging portion 313, so that the first plugging portion 313 is partially located outside the first large-diameter hole 3112.
In order to prevent the first blocking portion 313 from being separated from the throttle portion 3, a first stopper portion 314 and a first pressure contact portion 315 may be provided so as to at least partially restrict the first blocking portion 313 within the first large-diameter hole 3112. Specifically, the first pressure-bonding section 315 may be provided at a position of the throttle section 3 above the first throttle hole 311, the first stopper section 313 may be placed in the first throttle hole 311, the first stopper section 314 may be placed above the first throttle hole 311, and the first pressure-bonding section 315 may be deformed by the pressure-bonding operation, thereby realizing the stopper connection of the first stopper section 314 and the throttle section 3.
The first stopper 314 has a substantially disk shape, and is provided with a plurality of through holes 3141 penetrating therethrough, as shown in fig. 4, so that the refrigerant can flow through the through holes 3141. In this embodiment, 4 through holes are taken as an example, and the remaining number of through holes may be provided, so long as the first stopper 314 is penetrated to circulate the refrigerant and the first blocking portion 313 is prevented from being separated.
The valve device is provided with a first stepped portion 16, the first stepped portion 16 being located on the inner wall of the second interface portion 12 such that the inner wall inner diameter of the portion above the first stepped portion 16 is smaller than the inner wall inner diameter of the portion below the first stepped portion 16. In this way, the throttle 3 can be installed from below the valve assembly, that is, the throttle 3 is installed from the lower end of the second interface 12, and specifically, the upper end edge surface of the throttle 3 can be abutted against the first step 16 by a tight fit method to realize positioning and fixing. A sleeve portion 4 is provided below the throttle portion 3, the sleeve portion 4 is fixedly provided inside the second joint portion 12, one end of the sleeve portion 4 abuts against a lower end edge surface of the throttle portion 3, and the other end of the sleeve portion 4 abuts against the pipe connecting portion 14 or the filtering portion 15.
In the present embodiment, the filtering portion 15 is provided inside the valve device to prevent impurities in the refrigeration system from entering the valve device. In order to fix the filter portion 15, the filter portion 15 may be provided between the sleeve portion 4 and the adapter portion 14, and then fixed by brazing or the like. Of course, it will be understood by those skilled in the art that the filtering portion 15 may be directly disposed in the pipeline of the refrigeration system, instead of being disposed inside the valve device, so that the lower end of the sleeve portion 4 may be directly abutted against the end surface of the pipe connection portion 14, and then welded and fixed.
Due to the arrangement of the sleeve portion 4, the welding portion between the pipe connection portion 14 and the valve body 1 is away from the throttle portion 3, so that the influence of heat generated by welding on the first throttle hole and the second throttle hole in the throttle portion can be reduced, and the risk of deformation of the throttle hole is reduced. Meanwhile, if the first plugging part is made of stainless steel, the possibility that the stainless steel is oxidized due to heat generated by welding can be reduced.
In the present embodiment, the second orifice 321 is a hole of equal diameter, penetrates the throttle portion 3, and both ends of the second orifice 321 are kept in communication with the second passage 112.
When the valve stem 2 of the valve device is moved upwards, the valve device is in an open state. When the refrigerant flows into the valve device from the second passage 112, the first blocking portion 313 moves upward under the pressure of the refrigerant, and the first orifice 311 is in an open state, and at this time, the first orifice 311 and the second orifice 321 are simultaneously in a conductive state, and both perform the throttle function. The refrigerant throttles and flows through the valve port 131 and then flows out of the valve device from the first passage 111. When the refrigerant flows into the valve device from the first passage 111, the first blocking portion 313 moves downward by the pressure of the refrigerant to close the first throttle port 312, and the first throttle hole 311 is in a closed state. At this time, only the second orifice 321 is in the on state, and the throttle function is realized by the second orifice 321. The refrigerant passes through the valve port 131, is throttled by the second throttle hole 321, and flows out of the valve device from the pipe connection portion 14.
The valve device provided by the embodiment can set different throttling precision when the refrigerant flows in the forward direction or the reverse direction according to the needs of the system.
The first embodiment has been described in detail, and various structural changes may be made to the first embodiment to form new and different embodiments. The second embodiment is further described below with reference to fig. 5 and 6, and the third embodiment is further described with reference to fig. 7. In order to clearly and concisely describe other embodiments, and avoid excessive redundancy, in the following embodiments, components that perform the same function are denoted by the same names and reference numerals, and differences from the first embodiment are described herein. Further, since the following embodiments are directed to structural changes of the throttle portion or the valve body, structural changes of other parts of the valve device are not involved, and thus the other parts of the valve device will not be described.
As described above, the valve device can realize both the shutoff function and the two-way throttle function, has wide applicability, and can reduce the influence of welding on the throttle hole.
[ Second embodiment ]
Referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of a second embodiment of the present invention; fig. 6 is a partial enlarged view of fig. 5.
In the second embodiment, the valve body 1 and the valve stem 2 may have the same structure as the first embodiment, and include the first passage 111, the second passage 112, the valve port portion 13, the valve port 131 provided in the valve port portion 13, and the like. The difference is in the structure of the throttle 3, and the structure of the throttle 3 is described below.
The throttle portion 3 is substantially cylindrical and includes a first throttle portion 31 and a second throttle portion 32, wherein the first throttle portion 31 is provided with a first throttle hole 311 and the second throttle portion 32 is provided with a second throttle hole 321. The first orifice 311 penetrates the throttle portion 3, and both ends of the first orifice 311 can communicate with the second passage 112, i.e., it can be understood that the throttle portion 3 is located inside the second passage 112. The second orifice 321 also penetrates the throttle portion 3, and both ends of the second orifice 321 can communicate with the second passage 112. The throttle 3 is further provided with at least one blocking portion capable of blocking the first throttle hole 311 or the second throttle hole 321 in a specific operation state so that the corresponding throttle hole is in a blocked state, and when the valve port 131 of the valve device is in an open state, at least one of the first throttle hole 311 and the second throttle hole 321 is in a passage state.
The first orifice 311, the first blocking portion 313, the first limiting portion 314, the first pressure-bonding portion 315, the first step portion 16, the sleeve portion 4, the pipe connecting portion 14, the filtering portion 15, and the like may all adopt the same structure as the first embodiment, and will not be described in detail herein.
In the present embodiment, the second orifice 321 penetrates the orifice portion 3, and includes a second small-diameter hole 3211 and a second large-diameter hole 3212. The second small diameter hole 3211 is provided on the side of the throttle 3 facing the valve opening 13, and the second large diameter hole 3212 is provided on the side of the throttle 3 facing away from the valve opening, i.e., the lower end of the throttle shown in fig. 5, at the upper end of the throttle 3 shown in fig. 5. A second throttle port 322 is disposed between the second large diameter hole 3212 and the second small diameter hole 3211, and specifically, a generally frustoconical step may be disposed in the second orifice as a transition between the second small diameter hole 3211 and the second large diameter hole 3212, and the second throttle port 322 may be formed at the step. The blocking portion further comprises a second blocking portion 323, the second blocking portion 323 being substantially spherical and being located on a side of the throttling portion 3 facing away from the valve opening. When the second blocking portion 323 moves upward under the pressure of the refrigerant, the second throttle valve port 322 may be closed, so that the second throttle hole 321 is in a blocked state. The second blocking portion 323 is at least partially disposed within the second large diameter bore 3212.
In order to prevent the second blocking portion 323 from being separated from the throttle 3, a second stopper portion 324 and a second pressure contact portion 325 may be provided so as to at least partially restrict the second blocking portion 323 to the second large diameter hole 3212. Specifically, the second pressure-bonding section 325 may be provided at a position below the second orifice 321 of the throttle section 3, the second stopper section 323 may be placed in the second orifice 321, the second stopper section 324 may be placed above the second orifice 321, and the second pressure-bonding section 325 may be deformed by the pressure-bonding operation, thereby realizing the stopper connection between the second stopper section 324 and the throttle section 3.
The second limiting portion 323 may have the same structure as the first limiting portion 313, and will not be described herein.
When the valve stem 2 of the valve device is moved upwards, the valve device is in an open state. When the refrigerant flows into the valve device from the second passage 112, the first blocking portion 313 moves upward under the pressure of the refrigerant, and the first orifice 311 is in an opened state; the second blocking portion 323 moves upward to block the second throttle valve port 322, and the second orifice 321 is in a closed state. At this time, the throttle function is realized by the first throttle hole 311. The refrigerant throttles and flows through the valve port 131 and then flows out of the valve device from the first passage 111. When the refrigerant flows into the valve device from the first passage 111, the first blocking portion 313 moves downward to close the first throttle port 312 under the pressure of the refrigerant, and the first throttle hole 311 is in a closed state; the second blocking portion 323 moves downward and leaves the second orifice port 322, and at this time, only the second orifice 321 is in the on state, and the orifice function is achieved by the second orifice 321.
The valve device provided by the embodiment can set different throttling precision when the refrigerant flows forwards or backwards according to the requirement of the system, and can be realized by only setting that the first throttling hole and the second throttling hole have different inner diameters.
The assembly method of the present embodiment includes the steps of:
1) Preparing an integrally formed valve body 1, and processing a first step portion 16 inside the second interface portion;
2) The throttle part 3 is prepared, the first throttle hole 311 and the second throttle hole 321 are processed, at least one plugging part is arranged in the first throttle hole 311 and/or the second throttle hole 321, and the limiting part is in limiting connection with the throttle part through crimping operation.
3) The throttle part 3 is installed in the valve device from the lower end of the second interface part 12 upwards, and the edge surface of the upper end of the throttle part 3 is abutted with the first step part 16;
4) The sleeve part 4 is put into the valve device from the lower end of the second interface part 12 upwards, and the upper end surface of the sleeve part 4 is abutted with the lower end edge surface of the throttling part 3;
5) Loading the pipe connection portion 14 into the valve device from the lower end of the second interface portion 12 upward so that the upper end surface of the pipe connection portion 14 abuts against the lower end surface of the sleeve portion 4;
6) A brazing operation is performed to fixedly connect the adapter portion 14 with the second interface portion 12.
The order of steps 1) and 2) described above may be interchanged.
[ Third embodiment ]
Referring to fig. 7, fig. 7 is a schematic structural diagram of a third embodiment of the present invention.
The present embodiment differs from the first embodiment in that the second joint part 12 is provided inside with a second step part 17, the second step part 17 is located on the inner wall of the second joint part 12, and the inner wall inner diameter of the upper part of the second step part 17 is made larger than the inner wall inner diameter of the lower part of the second step part 17. In this way, the throttle 3 can be installed from above the valve assembly, that is, the throttle 3 is installed from the upper end of the main body 10, specifically, the lower end edge surface of the throttle 3 can be abutted against the second step 17 by a tight fit manner to realize positioning and fixing, and then the valve stem 2 is installed. A third step 18 is also provided on the inner wall of the second interface part at a distance below the second step 17, the nipple part 14 or the filter part 15 being in abutment with the third step 18.
Since the second step portion 17 is spaced from the third step portion 18 by a certain distance, the welding portion between the pipe connection portion 14 and the valve body 1 is away from the throttle portion 3, so that the influence of heat generated by welding on the first orifice and the second orifice in the throttle portion can be reduced, and the risk of deformation of the orifice is reduced. Meanwhile, if the first plugging part is made of stainless steel, the possibility that the stainless steel is oxidized due to heat generated by welding can be reduced.
The throttle 3 shown in fig. 7 of the present embodiment is the same as that of the first embodiment, and it is obvious that the throttle 3 of the present embodiment may be replaced with the throttle described in the second embodiment to form a new embodiment. Is limited to space and will not be described in detail.
The assembly method of the present embodiment includes the steps of:
1) Preparing an integrally formed valve body 1, and machining a second step 17 and a third step 18 inside the second interface 12;
2) The throttle part 3 is prepared, the first throttle hole 311 and the second throttle hole 321 are processed, at least one plugging part is arranged in the first throttle hole 311 and/or the second throttle hole 321, and the limiting part is in limiting connection with the throttle part through crimping operation.
3) The throttle part 3 is installed into the valve device downwards from the upper end of the body part 10, and the edge surface of the lower end of the throttle part 3 is abutted with the second step part 17;
4) Loading the pipe connecting portion 14 into the valve device from the lower end of the second interface portion 12 upward, so that the upper end edge surface of the pipe connecting portion 14 abuts against the third step portion 18;
5) A brazing operation is performed to fixedly connect the adapter portion 14 with the second interface portion 12.
The order of steps 1) and 2) described above may be interchanged.
[ Fourth embodiment ]
Referring to fig. 8 and 9, fig. 8 is a schematic structural diagram of a fourth embodiment of the present invention, and fig. 9 is a partial enlarged view of fig. 8.
In the fourth embodiment, the valve body 1 and the valve stem 2 may have the same structure as those of the first embodiment, and include the first passage 111, the second passage 112, the valve port portion 13, the valve port 131 provided in the valve port portion 13, and the like. The difference is the structure of the throttle portion, which is described below.
The throttle portion 3A is substantially cylindrical and includes a first throttle portion 31A and a second throttle portion 32A, wherein the first throttle portion 31A is provided with a first throttle hole 311A and the second throttle portion 32A is provided with a second throttle hole 321A. The throttle portion 3A is further provided with a throttle chamber portion 33A so that a throttle chamber 331A is formed in the throttle portion 3A, and the throttle chamber 331A is located on one side of the throttle portion 3A and can communicate with both the first throttle hole 311A and the second throttle hole 321A. The throttle portion 3A is further provided with at least one blocking portion capable of blocking the first throttle hole 311A or the second throttle hole 321A in a specific operation state so that the corresponding throttle hole is in a blocked state, and when the valve port 131 of the valve device is in an open state, at least one of the first throttle hole 311A and the second throttle hole 321A is in a passage state.
The blocking portion includes a third blocking portion 313A, and the third blocking portion 313A is at least partially disposed within the restriction cavity 331A and is capable of blocking the first restriction orifice 311A. A third limiting portion 314A is connected to the upper end of the throttling portion 3A in a limiting manner or fixedly connected thereto, and limiting is achieved by crimping deformation of the third crimping portion 315A. When the crimping is completed, the third blocking portion 313A can move only within a certain range and cannot enter other spaces of the throttle chamber 331A, such as above the second throttle hole 321A. The third stopper 314A may have the same structure as the first stopper 314 described in the first embodiment, and may have a larger diameter so that the diameter of the third stopper 314A matches the inner diameter of the throttle chamber 331A.
The sleeve portion 4 in this embodiment may have the same structure as that of the first embodiment, and will not be described here.
The valve device described in this embodiment can be assembled by the following method:
1) Preparing an integrally formed valve body 1, and processing a first step portion 16 inside the second interface portion;
2) The throttle portion 3A is prepared, the first throttle hole 311A, the second throttle hole 321A and the throttle chamber 331A are processed, at least one blocking portion is placed in the first throttle hole 311 and/or the second throttle hole 321, and the limiting portion is limited and connected with the throttle portion by crimping operation.
3) The throttle part 3A is installed in the valve device from the lower end of the second interface part 12 upwards, and the edge surface of the upper end of the throttle part 3 is abutted with the first step part 16;
4) The sleeve part 4 is put into the valve device from the lower end of the second interface part 12 upwards, and the upper end surface of the sleeve part 4 is abutted with the lower end edge surface of the throttling part 3;
5) Loading the pipe connection portion 14 into the valve device from the lower end of the second interface portion 12 upward so that the upper end surface of the pipe connection portion 14 abuts against the lower end surface of the sleeve portion 4;
6) A brazing operation is performed to fixedly connect the adapter portion 14 with the second interface portion 12.
The order of steps 1) and 2) described above may be interchanged.
In the valve device provided by the embodiment, the throttling part can be directly pressed and fixed, and the sleeve part is arranged, so that heat generated by welding can not greatly influence the throttling part when the connecting pipe part is welded.
The ordinal numbers such as "first" and "second" in the present specification are merely for distinguishing different parts, and do not mean that a specific precedence relationship exists between the parts.
The valve device provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (8)
1. Valve device, characterized by comprising a valve body (1) and a valve stem (2), the valve body (1) comprising a body part (10), a first interface part (11) and a second interface part (12), the valve body (1) comprising a valve opening part (13), the valve opening part (13) being provided with a valve opening (131), the valve device comprising a first channel (111) and a second channel (112), the valve opening (131) being capable of communicating the first channel (111) and the second channel (112); a throttling part is fixedly arranged in the first interface part (11) or the second interface part (12), the throttling part comprises a first throttling part (31) and a second throttling part (32), the first throttling part (31) is provided with a first throttling hole (311/311A), the second throttling part (32) is provided with a second throttling hole (321/321A), the first throttling hole (311/311A) penetrates through the throttling part, two ends of the first throttling hole (311/311A) can be communicated with the second channel (112), the second throttling hole (321/321A) penetrates through the throttling part, two ends of the second throttling hole (321/321A) can be communicated with the second channel (112), and the throttling part is provided with at least one throttling part, and the blocking part can block the first throttling hole (311) or the second throttling hole (321);
The valve device further comprises a sleeve part (4), wherein the sleeve part (4) is fixedly arranged in the second joint part (12), the sleeve part (4) is positioned below the throttling part, one end of the sleeve part (4) is abutted against the throttling part, and the other end of the sleeve part (4) is abutted against the connecting pipe part (14) or the filtering part (15);
The throttling part further comprises a throttling cavity part (33A), the throttling cavity part (33A) is provided with a throttling cavity (331A), the throttling cavity (331A) can be simultaneously communicated with the first throttling hole (311A) and the second throttling hole (321A), and the blocking part is at least partially positioned in the throttling cavity (331A).
2. The valve device of claim 1, wherein the first orifice (311) comprises a first small diameter bore (3111) and a first large diameter bore (3112), the seal comprising a first seal (313), the first seal (313) being located at least partially within the first large diameter bore (3112); the throttling part is fixedly connected with a first limiting part (314), the first limiting part (314) limits the first plugging part (313) to the first large-diameter hole (3112) at least partially, and two ends of the second throttling hole (321) are communicated with the second channel (112).
3. The valve device of claim 1, wherein the first orifice (311) comprises a first small diameter bore (3111) and a first large diameter bore (3112), the seal comprising a first seal (313), the first seal (313) being located at least partially within the first large diameter bore (3112); the throttling part is fixedly connected with a first limiting part (314); the second throttling hole (321) comprises a second small-diameter hole (3211) and a second large-diameter hole (3212), the blocking portion further comprises a second blocking portion (323), the second blocking portion (323) is at least partially located in the second large-diameter hole (3212), and the throttling portion is fixedly connected with a second limiting portion (324).
4. A valve device according to claim 3, wherein the first small diameter hole (3111) is provided on a side of the throttle portion facing away from the valve port portion (13), the first large diameter hole (3112) is provided on a side of the throttle portion facing the valve port portion (13), and the first shutoff portion (313) is provided on a side of the throttle portion facing the valve port portion (13).
5. The valve device according to claim 4, wherein the second small diameter hole (3211) is provided on a side of the throttle portion facing the valve port portion (13), the second large diameter hole (3212) is provided on a side of the throttle portion facing away from the valve port portion (13), and the second blocking portion (323) is provided on a side of the throttle portion facing away from the valve port portion (13).
6. A valve arrangement according to any one of claims 2 or 3, wherein the throttle portion comprises a first crimp portion (315), the first crimp portion (315) positively connecting a first limiting portion (314) with the throttle portion by crimping deformation; or the throttling part further comprises a second compression joint part (325), and the second compression joint part (325) is used for limiting and connecting the second limiting part (324) with the throttling part through compression joint deformation.
7. The method of manufacturing a valve device according to claim 1, comprising the steps of:
1) Preparing an integrally formed valve body (1) and processing a first step part (16) in the second interface part (12);
2) Preparing a throttling part, machining a first throttling hole (311) and a second throttling hole (321), placing at least one plugging part in the first throttling hole (311) and/or the second throttling hole (321), and connecting a limiting part with the throttling part in a limiting way through crimping operation;
3) The throttle part is installed in the valve device from the lower end of the second interface part (12) upwards, and the edge surface of the upper end of the throttle part is abutted with the first step part (16);
4) The sleeve part (4) is arranged in the valve device from the lower end of the second interface part (12) upwards, so that the upper end surface of the sleeve part (4) is abutted with the lower end edge surface of the throttling part;
5) Loading the connecting pipe part (14) into the valve device from the lower end of the second connecting port part (12) upwards, so that the upper end surface of the connecting pipe part (14) is abutted with the lower end surface of the sleeve part (4);
6) And performing a brazing operation to fixedly connect the connection pipe portion (14) with the second connection portion (12).
8. The method of manufacturing a valve device according to claim 1, comprising the steps of:
1) Preparing an integrally formed valve body (1), and processing a second step part (17) and a third step part (18) in the second interface part (12);
2) Preparing a throttling part, machining a first throttling hole (311) and a second throttling hole (321), placing at least one plugging part in the first throttling hole (311) and/or the second throttling hole (321), and connecting a limiting part with the throttling part in a limiting way through crimping operation;
3) The throttle part is downwards arranged in the valve device from the upper end of the body part (10), and the edge surface of the lower end of the throttle part is abutted with the second step part (17);
4) Loading the connecting pipe part (14) into the valve device from the lower end of the second connecting port part (12) upwards, and enabling the edge surface of the upper end of the connecting pipe part (14) to be abutted with the third step part (18);
5) And performing a brazing operation to fixedly connect the connection pipe portion (14) with the second connection portion (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910108673.1A CN111520480B (en) | 2019-02-03 | 2019-02-03 | Valve device and method for manufacturing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910108673.1A CN111520480B (en) | 2019-02-03 | 2019-02-03 | Valve device and method for manufacturing the same |
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| CN111520480A CN111520480A (en) | 2020-08-11 |
| CN111520480B true CN111520480B (en) | 2024-05-17 |
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| CN201910108673.1A Active CN111520480B (en) | 2019-02-03 | 2019-02-03 | Valve device and method for manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112719201B (en) * | 2020-12-02 | 2022-09-23 | 浙江欧伦泰防火设备有限公司 | Valve forging and pressing process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8107640U1 (en) * | 1981-03-17 | 1981-09-17 | Georg Prinzing Gmbh & Co Kg Betonformen- Und Maschinenfabr | "Molding device for shaping concrete parts, in particular manhole rings, manhole necks or the like." |
| DE4022016A1 (en) * | 1990-07-11 | 1992-01-16 | Rexroth Mannesmann Gmbh | Double two=way logical valve - has plunger of greater dia. than valve seat area |
| JP2001012825A (en) * | 1999-06-29 | 2001-01-19 | Hitachi Ltd | Throttle device |
| CN102445033A (en) * | 2010-10-14 | 2012-05-09 | 海尔集团公司 | Two-way throttling valve for air conditioner, and air conditioner comprising such two-way throttling valve |
| CN108253160A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | Expand switch valve |
| CN210003817U (en) * | 2019-02-03 | 2020-01-31 | 浙江三花智能控制股份有限公司 | Valve device |
-
2019
- 2019-02-03 CN CN201910108673.1A patent/CN111520480B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8107640U1 (en) * | 1981-03-17 | 1981-09-17 | Georg Prinzing Gmbh & Co Kg Betonformen- Und Maschinenfabr | "Molding device for shaping concrete parts, in particular manhole rings, manhole necks or the like." |
| DE4022016A1 (en) * | 1990-07-11 | 1992-01-16 | Rexroth Mannesmann Gmbh | Double two=way logical valve - has plunger of greater dia. than valve seat area |
| JP2001012825A (en) * | 1999-06-29 | 2001-01-19 | Hitachi Ltd | Throttle device |
| CN102445033A (en) * | 2010-10-14 | 2012-05-09 | 海尔集团公司 | Two-way throttling valve for air conditioner, and air conditioner comprising such two-way throttling valve |
| CN108253160A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | Expand switch valve |
| CN210003817U (en) * | 2019-02-03 | 2020-01-31 | 浙江三花智能控制股份有限公司 | Valve device |
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|---|---|
| CN111520480A (en) | 2020-08-11 |
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