CN111520480A - Valve device and method for manufacturing the same - Google Patents
Valve device and method for manufacturing the same Download PDFInfo
- Publication number
- CN111520480A CN111520480A CN201910108673.1A CN201910108673A CN111520480A CN 111520480 A CN111520480 A CN 111520480A CN 201910108673 A CN201910108673 A CN 201910108673A CN 111520480 A CN111520480 A CN 111520480A
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- throttle
- throttling
- hole
- valve
- valve device
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- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 51
- 238000002788 crimping Methods 0.000 claims description 8
- 238000005219 brazing Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 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
- 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
- 230000002457 bidirectional effect Effects 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
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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
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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
Abstract
The invention provides a valve device and an assembly method, 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 port part, the valve port 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 first interface part or the second interface part is internally and fixedly provided with a throttling part, the throttling part comprises a first throttling part and a second throttling part, the first throttling part is provided with a first throttling hole, the second throttling part is provided with a second throttling hole, the first throttling hole penetrates through the throttling part, both ends of the first throttling hole can be communicated with the second channel, the second throttling hole penetrates through the throttling part, both ends of the second throttling hole can be communicated with the second channel, and the throttling part is provided with at least one blocking part which can block the first throttling hole or the second throttling hole.
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 the on-off of a refrigerant. When the valve device is in an open state, the refrigerant passage is in a circulation state; when the valve device is in a closed state, the refrigerant passage is in a blocked state.
The air conditioning system is also provided with a throttling element to realize the throttling function, 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 parts 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, and the throttling function is realized.
The invention aims to provide a novel valve core structure with a throttling function, so that a valve device can control throttling precision in different flow directions.
Disclosure of Invention
The object of the present invention is to provide a new valve device with a throttling function, which is capable of controlling the throttling accuracy in different flow directions.
To this end, the invention provides a valve device, which is characterized by comprising a valve body and a valve rod, wherein the valve body comprises a body part, a first connecting part and a second connecting part, the valve body comprises a valve port part, the valve port 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 first interface part or the second interface part is internally and fixedly provided with a throttling part, the throttling part comprises a first throttling part and a second throttling part, the first throttling part is provided with a first throttling hole, the second throttling part is provided with a second throttling hole, the first throttling hole penetrates through the throttling part, both ends of the first throttling hole can be communicated with the second channel, the second throttling hole penetrates through the throttling part, both ends of the second throttling hole can be communicated with the second channel, and the throttling part is provided with at least one blocking part which can block the first throttling hole or the second throttling hole.
The valve device provided by the invention can set different throttling precisions when the refrigerant flows in the forward direction or the reverse direction according to the requirements of the system.
On the basis, the invention also provides an assembly method of the valve device.
Drawings
FIG. 1 is a schematic structural 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 external view of a throttle portion according to a first embodiment of the present invention;
fig. 4 is an external view of the first position-limiting portion according to the first embodiment of the present invention;
FIG. 5 is a schematic structural 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 structural diagram of a third embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a fourth embodiment of the present invention;
fig. 9 is a partially enlarged view of fig. 8.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
[ first embodiment ] A method for manufacturing a semiconductor device
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 partially enlarged view of fig. 1.
It should be noted that the terms of orientation, horizontal, vertical, upper and lower, etc. mentioned herein are defined with reference to the position of the components in the drawings and the mutual position relationship between the components in fig. 1 to 7, and the use of the terms of orientation is only for convenience of description of the technical solution, and it should be understood that the use of the terms of orientation 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 portion 10, a first connection port 11, and a second connection port 12. The body portion 10, the first connecting port portion 11 and the second connecting port portion 12 may be integrally forged from a metal material such as brass, and are configured as a cylindrical body portion 10, and the first connecting port portion 11 may also be substantially cylindrical, and an extending direction of a central axis thereof may be set substantially perpendicular to an extending direction of a central axis of the body portion 10, which corresponds to the first connecting port portion 11 extending along a radial direction of the body portion 10. The second interface portion 12 extends downwardly along the body portion 10. The valve body 1 includes a valve port portion 13, the valve port portion 13 is formed inside the valve body 1, and may be substantially bounded by the valve port portion 13, a portion of the valve body located above the valve port portion 13 is defined as a body portion, and a portion of the valve body located below the valve port 13 is defined as a second interface portion. It should be noted that, of course, the main body 10, the first interface part 11, and the second interface part 12 may be formed by forging and molding an integral material, so that there is no strict separation limit between the three parts.
The valve device further includes a stem 2, and the stem 2 is disposed inside the valve body 1 and is screw-fitted to an inner wall of the valve body so that the stem 2 can be displaced in the 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 port 131 can communicate the first passage 111 and the second passage 112. The valve port part 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 port part 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 operating valve rod 2 moves upwards to make the valve rod 2 away from the valve port part 13, the valve port 131 is opened, the first channel 111 and the second channel 112 are communicated, and the valve device is in an opening state.
A bonnet 5 may be further disposed above the body portion 10, the bonnet 5 may be fixed to the valve body 1 in a threaded manner, and the bonnet 5 may prevent dust from entering the valve device and may also perform a certain sealing function.
The first connection port 11 and the second connection port 12 may be fixedly connected with external flow pipes, respectively, to connect the valve device into a system pipeline. In the present embodiment, the pipe connecting portion 14 is fixedly connected to the second interface portion 12. The piping section 14 may be connected to the air conditioning system by welding or the like. The first connection port 11 may be connected to the system line by a connection joint.
In the present embodiment, the throttle portion 3 is fixedly disposed inside the second connecting port portion 12, the throttle portion 3 includes a first throttle portion 31 and a second throttle portion 32, and the throttle portion 3 is located below the valve port portion 13. It should be noted that, in the present embodiment and other embodiments described below, the throttle portion 3 is disposed inside the second interface portion 12, and those skilled in the art can understand that the throttle portion 3 may be disposed inside the first interface portion 11, and the object of the present invention can be achieved as well.
Referring to fig. 3, fig. 3 is an external view of a throttle portion according to a first embodiment of the present invention. As shown in fig. 2 or 3, the throttle portion 3 has a substantially cylindrical shape 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 portion 3 is further provided with at least one blocking portion that is capable of blocking either the first orifice 311 or the second orifice 321 in a certain operating state so that the respective orifice is in a blocked state, and at least one of the first orifice 311 and the second orifice 321 is in a passage state when the valve port 131 of the valve device is in an open state.
The first orifice 311 includes a first small-diameter hole 3111 and a first large-diameter hole 3112, where the first small-diameter hole 3111 is provided on a side of the throttle portion 3 away from the valve port portion 13, and the first large-diameter hole 3112 is provided on a side of the throttle portion 3 toward the valve port portion, that is, on an upper end of the throttle portion 3 shown in fig. 1, at a lower end of the throttle portion 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 step having a substantially truncated cone shape may be provided in the first throttle hole as a transition between the first small-diameter hole 3111 and the first large-diameter hole 3112, and the first throttle port 312 is formed at the step. The first blocking portion 313 is spherical and is located on the side of the throttle portion 3 facing the valve port portion 13. When the first blocking portion 313 moves downward by the pressure of the refrigerant, the first orifice 311 may be blocked by closing the first throttle port 312. The first blocking portion 313 is at least partially located in the first large-diameter hole 3112, and in the schematic view of the embodiment, the first blocking portion 313 is entirely located in the first large-diameter hole 3112, but 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 blocking portion 313, so that a part of the first blocking portion 313 is located outside the first large-diameter hole 3112.
In order to prevent the first closing portion 313 from coming off the throttle portion 3, a first stopper portion 314 and a first pressure-bonding portion 315 may be provided so as to at least partially restrict the first closing portion 313 in the first large-diameter hole 3112. Specifically, the first pressure-bonding section 315 may be provided in a portion of the throttle section 3 located above the first throttle hole 311, the first stopper section 314 may be placed above the first throttle hole 311 after the first blocking section 313 is placed in the first throttle hole 311, and the first pressure-bonding section 315 may be deformed by a pressure-bonding operation, thereby achieving the stopper connection of the first stopper section 314 to the throttle section 3.
The first stopper 314 is substantially disc-shaped, and has a plurality of through holes 3141 formed therethrough as shown in fig. 4, and the refrigerant can flow through the through holes 3141. In the present embodiment, 4 through holes are taken as an example, and of course, the remaining number of through holes may be provided, and the present invention can be implemented only by penetrating the first stopper 314 to circulate the refrigerant and preventing the first blocking portion 313 from being detached.
The valve device is provided with a first step 16, the first step 16 being located on the inner wall of the second connecting port portion 12 such that the inner diameter of the inner wall of the portion above the first step 16 is smaller than the inner diameter of the inner wall of the portion below the first step 16. In this way, the throttle 3 can be inserted from below and up of the valve assembly, that is, the throttle 3 can be inserted from the lower end of the second interface portion 12, and specifically, the upper end edge surface of the throttle 3 can be brought into contact with the first stepped portion 16 by a close fit to position and fix the throttle. A sleeve portion 4 is provided below the throttle portion 3, the sleeve portion 4 is fixedly provided inside the second connecting 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 receiving portion 14 or the filter portion 15.
In the present embodiment, the filter portion 15 is provided inside the valve device to prevent foreign substances in the refrigeration system from entering the valve device. In order to fix the filter portion 15, the filter portion 15 may be disposed between the sleeve portion 4 and the joint pipe portion 14 and then fixed by brazing or the like. Of course, it will be understood by those skilled in the art that the filter portion 15 may be disposed directly in the piping of the refrigeration system, not inside the valve device, so that the lower end of the sleeve portion 4 may be directly abutted against the end surface of the joint pipe portion 14, and then welded and fixed.
Due to the arrangement of the sleeve portion 4, the welding part between the pipe connecting portion 14 and the valve body 1 is far away from the throttling portion 3, so that the influence of heat generated by welding on the first throttling hole and the second throttling hole in the throttling portion can be reduced, and the risk of deformation of the throttling holes is reduced. Meanwhile, if the first blocking 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 having an equal diameter, penetrates the throttle portion 3, and both ends of the second orifice 321 are in communication with the second passage 112.
When the valve stem 2 of the valve device is moved upward, 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 by the pressure of the refrigerant, 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 communication state, and both achieve the throttling function. The refrigerant throttles and flows through the valve port 131 and then out of the valve device through 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, the first orifice 311 is closed by closing the first throttle port 312, and the first throttle hole 312 is closed. At this time, only the second orifice 321 is in a conductive state, and the second orifice 321 achieves a throttling function. The refrigerant passes through the valve port 131, is throttled by the second orifice 321, and flows out of the valve device through the connection pipe portion 14.
The valve device provided by the embodiment can set different throttling accuracies when the refrigerant flows in the forward direction or the reverse direction according to the needs of the system.
While the first embodiment has been described in detail above, many structural changes may be made to the first embodiment to create 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 overly burdensome lines, the following embodiments will be described with reference to the same names and reference numbers for components that serve the same function, and will be described with respect to the differences from the first embodiment. Since the following embodiments are directed to structural changes of the throttle portion or the valve body, and do not involve structural changes of other components of the valve device, the other components of the valve device will not be described.
As mentioned above, the valve device can realize both the stop function and the bidirectional throttling function, has wide applicability, and can reduce the influence of welding on the throttling 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 partially enlarged view of fig. 5.
In the second embodiment, the valve body 1 and the valve stem 2 may have the same structure as that 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 lies in the structure of the throttle section 3, and the structure of the throttle section 3 is described below.
The throttle portion 3 has a substantially cylindrical shape 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 portion 3 is further provided with at least one blocking portion that is capable of blocking either the first orifice 311 or the second orifice 321 in a certain operating state so that the respective orifice is in a blocked state, and at least one of the first orifice 311 and the second orifice 321 is in a passage state when the valve port 131 of the valve device is in an open state.
The first orifice 311, the first blocking portion 313, the first stopper 314, the first crimping portion 315, the first stepped portion 16, the sleeve portion 4, the pipe connecting portion 14, the filter portion 15, and other components may all have the same structure as that of the first embodiment, and therefore, the description thereof is omitted.
In the present embodiment, the second orifice 321 penetrates the throttle 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 portion 3 facing the valve port portion 13, and the second large-diameter hole 3212 is provided on the side of the throttle portion 3 facing away from the valve port portion, i.e., on the lower end of the throttle portion shown in fig. 5, at the upper end of the throttle portion 3 shown in fig. 5. A second throttle valve port 322 is provided between the second large-diameter hole 3212 and the second small-diameter hole 3211, specifically, a step having a substantially frustum shape may be provided in the second throttle valve as a transition between the second large-diameter hole 3212 and the second large-diameter hole 3211, and the second throttle valve port 322 is formed at the step. The closing portion further includes a second closing portion 323, and the second closing portion 323 is substantially spherical and is located on the side of the throttle portion 3 away from the valve port portion. When the second blocking portion 323 moves upward by the refrigerant pressure, the second orifice 321 may be blocked by closing the second throttle port 322. The second blocking portion 323 is at least partially located in the second large-diameter hole 3212.
In order to prevent the second closing portion 323 from coming off the throttle portion 3, a second stopper portion 324 and a second pressure-bonding portion 325 may be provided to at least partially restrict the second closing portion 323 in the second large-diameter hole 3212. Specifically, the second pressure-bonding section 325 may be provided in a portion of the throttle section 3 located below the second orifice 321, the second stopper section 324 may be placed above the second orifice 321 after the second blocking section 323 is placed in the second orifice 321, and the second pressure-bonding section 325 may be deformed by the pressure-bonding operation, thereby achieving the stopper connection of the second stopper section 324 to the throttle section 3.
The second position-limiting portion 323 may have the same structure as the first position-limiting portion 313, and will not be described herein.
When the valve stem 2 of the valve device is moved upward, 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 by the pressure of the refrigerant, and the first orifice 311 is in an open state; the second blocking portion 323 moves upward to block the second throttle port 322, and the second throttle hole 321 is in a closed state. At this time, the first orifice 311 performs a throttling function. The refrigerant throttles and flows through the valve port 131 and then out of the valve device through 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, the first orifice 311 is in a closed state, and the first throttle port 312 is closed; the second blocking portion 323 moves downward away from the second throttle port 322, and at this time, only the second throttle hole 321 is in a conductive state, and the throttle function is achieved by the second throttle hole 321.
The valve device provided by the embodiment can set different throttling precisions when the refrigerant flows in the forward direction or the reverse direction according to the requirements of the system, and can be realized by only arranging the first throttling hole and the second throttling hole to 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 part 16 in the interior of the second interface part;
2) the throttle part 3 is prepared, the first throttle hole 311 and the second throttle hole 321 are processed, at least one blocking part is arranged in the first throttle hole 311 and/or the second throttle hole 321, and the limiting part and the throttle part are in limiting connection through a crimping operation.
3) The throttle unit 3 is mounted into the valve device from the lower end of the second port 12 upward such that the upper end edge surface of the throttle unit 3 abuts against the first stepped portion 16;
4) the sleeve portion 4 is loaded into the valve device from the lower end of the second connecting port portion 12 upward, and the upper end surface of the sleeve portion 4 is made to abut against the lower end edge surface of the throttle portion 3;
5) the valve device is loaded with the pipe connecting portion 14 from the lower end of the second connecting portion 12 upward, and the upper end surface of the pipe connecting portion 14 is brought into contact with the lower end surface of the sleeve portion 4;
6) the brazing operation is performed to fixedly connect the joint pipe portion 14 and the second connecting portion 12.
The sequence of step 1) and step 2) 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 is different from the first embodiment in that a second stepped portion 17 is provided inside the second connecting port portion 12, and the second stepped portion 17 is located on the inner wall of the second connecting port portion 12, and the inner diameter of the inner wall of the portion above the second stepped portion 17 is larger than the inner diameter of the inner wall of the portion below the second stepped portion 17. In this way, the throttle part 3 can be inserted from above the valve assembly downwards, that is, the throttle part 3 is inserted from the upper end of the main body 10, specifically, the lower end edge surface of the throttle part 3 is abutted against the second stepped part 17 by a tight fit method to realize positioning and fixing, and then the valve rod 2 is inserted. A third stepped portion 18 is further provided on the inner wall of the second connecting portion at a distance below the second stepped portion 17, and the pipe connecting portion 14 or the filter portion 15 abuts against the third stepped portion 18.
Since the second stepped portion 17 and the third stepped portion 18 have a certain distance, the welding position between the pipe connecting portion 14 and the valve body 1 is far away from the throttling portion 3, so that the influence of heat generated by welding on the first throttle hole and the second throttle hole in the throttling portion can be reduced, and the risk of deformation of the throttle holes is reduced. Meanwhile, if the first blocking 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 portion 3 shown in fig. 7 of the present embodiment is the same as that of the first embodiment, and it is obvious that a new embodiment can be formed by replacing the throttle portion 3 of the present embodiment with the throttle portion described in the second embodiment. For the sake of brevity, no further description is provided.
The assembly method of the present embodiment includes 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 connecting part 12;
2) the throttle part 3 is prepared, the first throttle hole 311 and the second throttle hole 321 are processed, at least one blocking part is arranged in the first throttle hole 311 and/or the second throttle hole 321, and the limiting part and the throttle part are in limiting connection through a crimping operation.
3) The throttle portion 3 is inserted into the valve device from the upper end of the body portion 10 downward such that the lower end edge surface of the throttle portion 3 abuts against the second stepped portion 17;
4) the valve device is mounted in the connecting pipe portion 14 from the lower end of the second connecting port portion 12 upward, and the upper end edge surface of the connecting pipe portion 14 is brought into contact with the third step portion 18;
5) the brazing operation is performed to fixedly connect the joint pipe portion 14 and the second connecting portion 12.
The sequence of step 1) and step 2) above may be interchanged.
[ fourth example ] A
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 that of the first embodiment, and include the first passage 111, the second passage 112, the valve port 13, the valve port 131 provided in the valve port 13, and the like. The difference lies in the structure of the throttle portion, which is described below.
The orifice portion 3A is substantially cylindrical and includes a first orifice portion 31A and a second orifice portion 32A, wherein the first orifice portion 31A is provided with a first orifice 311A, and the second orifice portion 32A is provided with a second orifice 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 the 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 also provided with at least one blocking portion that is capable of blocking either the first orifice 311A or the second orifice 321A in a certain operating state so that the respective orifices are in a blocked state, and at least one of the first orifice 311A and the second orifice 321A is in a passage state when the valve port 131 of the valve device is in an open state.
The blocking portion includes a third blocking portion 313A, and the third blocking portion 313A is located at least partially in the orifice chamber 331A and is capable of blocking the first orifice 311A. A third stopper 314A is connected or fixed to the upper end of the throttle portion 3A, and is pressed and deformed by the third press-fitting portion 315A to realize the stopper. 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 portion 314A may have the same structure as the first stopper portion 314 described in the first embodiment, and the diameter thereof may be enlarged so that the diameter of the third stopper portion 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 again.
The valve device described in this embodiment may be assembled by the following method:
1) preparing an integrally formed valve body 1, and processing a first step part 16 in the interior of the second interface part;
2) the throttle portion 3A is prepared, and the first and second throttle holes 311A and 321A and the throttle chamber 331A are processed, at least one block portion is placed in the first throttle hole 311 and/or the second throttle hole 321, and the stopper portion is connected to the throttle portion by crimping operation.
3) The throttle portion 3A is mounted into the valve device from the lower end of the second port portion 12 upward such that the upper end edge surface of the throttle portion 3 abuts against the first stepped portion 16;
4) the sleeve portion 4 is loaded into the valve device from the lower end of the second connecting port portion 12 upward, and the upper end surface of the sleeve portion 4 is made to abut against the lower end edge surface of the throttle portion 3;
5) the valve device is loaded with the pipe connecting portion 14 from the lower end of the second connecting portion 12 upward, and the upper end surface of the pipe connecting portion 14 is brought into contact with the lower end surface of the sleeve portion 4;
6) the brazing operation is performed to fixedly connect the joint pipe portion 14 and the second connecting portion 12.
The sequence of step 1) and step 2) above may be interchanged.
According to the valve device provided by the embodiment, the throttling part can be directly pressed and fixed, and the sleeve part is arranged, so that when the connecting pipe part is welded, heat generated by welding cannot generate large influence on the throttling part.
The ordinal numbers such as "first", "second", etc., used in the specification of the invention are only for distinguishing between different elements and not for indicating a particular sequential relationship between the elements.
The valve device provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. Valve device, characterized by comprising a valve body (1) and a valve stem (2), the valve body (1) comprising a body portion (10), a first interface portion (11) and a second interface portion (12), the valve body (1) comprising a valve port portion (13), the valve port portion (13) being provided with a valve port (131), the valve device comprising a first channel (111) and a second channel (112), the valve port (131) being capable of communicating the first channel (111) and the second channel (112); a throttling part is fixedly arranged inside the first interface part (11) or the second interface part (12), the throttle portion includes a first throttle portion (31) and a second throttle portion (32), the first throttle portion (31) is provided with a first throttle hole (311/311A), the second throttle section (32) is provided with a second throttle hole (321/321A), the first throttle hole (311/311A) penetrates through the throttle section, and both ends of the first orifice (311/311A) can communicate with the second passage (112), the second orifice (321/321A) penetrates the throttle portion, and both ends of the second throttle hole (321/321A) can communicate with the second passage (112), the throttle section is provided with at least one blocking section that can block the first orifice (311) or the second orifice (321).
2. The valve device according to claim 1, wherein the first orifice hole (311) includes a first small-diameter hole (3111) and a first large-diameter hole (3112), the blocking portion includes a first blocking portion (313), and the first blocking portion (313) is located at least partially in the first large-diameter hole (3112); the throttling part is fixedly connected with a first limiting part (314), the first blocking part (313) is at least partially limited to the first large-diameter hole (3112) by the first limiting part (314), and two ends of the second throttling hole (321) are communicated with the second channel (112).
3. The valve device according to claim 1, wherein the first orifice hole (311) includes a first small-diameter hole (3111) and a first large-diameter hole (3112), the blocking portion includes a first blocking portion (313), and the first blocking portion (313) is located at least partially in the first large-diameter hole (3112); the throttling part is fixedly connected with a first limiting part (314); the second throttle hole (321) comprises a second small-diameter hole (3211) and a second large-diameter hole (3212), the blocking part further comprises a second blocking part (323), at least part of the second blocking part (323) is located in the second large-diameter hole (3212), and the throttle part is fixedly connected with a second limiting part (324).
4. A valve device according to any one of claims 2 or 3, characterized in that 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 toward the valve port portion (13), and the first blocking portion (313) is located on a side of the throttle portion facing toward 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 located on a side of the throttle portion facing away from the valve port portion (13).
6. A valve device according to any one of claims 2 or 3, wherein the throttle portion comprises a first crimp portion (315), the first crimp portion (315) being in crimp deformation to connect a first stopper portion (314) with the throttle portion; or the throttling part also comprises a second crimping part (325), and the second crimping part (325) is used for connecting the second limiting part (324) with the throttling part in a limiting way through crimping deformation.
7. A valve device according to any one of claims 1-3, further comprising a sleeve portion (4), the sleeve portion (4) being fixedly arranged inside the second connecting portion (12), the sleeve portion (4) being located below the throttle portion, one end of the sleeve portion (4) abutting the throttle portion and the other end of the sleeve portion (4) abutting a connecting tube portion (14) or a filter portion (15).
8. The valve device according to claim 1, wherein the throttle portion further comprises a throttle chamber portion (33A), the throttle chamber portion (33A) being provided with a throttle chamber (331A), the throttle chamber (331A) being capable of communicating with both the first throttle hole (311A) and the second throttle hole (321A), the blocking portion being located at least partially in the throttle chamber (331A).
9. A method of manufacturing a valve device, 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, processing a first throttling hole (311) and a second throttling hole (321), placing at least one blocking part in the first throttling hole (311) and/or the second throttling hole (321), and connecting the limiting part with the throttling part in a limiting way through a compression joint operation.
3) Installing the throttle part into the valve device from the lower end of the second interface part (12) to the upper part, and making the upper end edge surface of the throttle part contact with the first step part (16);
4) the sleeve part (4) is installed into the valve device from the lower end of the second interface part (12) to the upper part, so that the upper end surface of the sleeve part (4) is abutted with the lower end edge surface of the throttling part;
5) the valve device is assembled by mounting the connecting pipe part (14) from the lower end of the second interface part (12) to the upper part, and 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 brazing operation to fixedly connect the connecting pipe part (14) with the second interface part (12).
10. A method of manufacturing a valve device, 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, processing a first throttling hole (311) and a second throttling hole (321), placing at least one blocking part in the first throttling hole (311) and/or the second throttling hole (321), and connecting the limiting part with the throttling part in a limiting way through a compression joint operation.
3) The throttling part is assembled into the valve device from the upper end of the body part (10) downwards, so that the lower end edge surface of the throttling part is abutted with the second step part (17);
4) the valve device is assembled from the lower end of the second interface part (12) to the upper part of the connecting pipe part (14), so that the edge surface of the upper end of the connecting pipe part (14) is abutted with the third step part (18);
5) and performing brazing operation to fixedly connect the connecting pipe part (14) with the second interface part (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910108673.1A CN111520480A (en) | 2019-02-03 | 2019-02-03 | Valve device and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910108673.1A CN111520480A (en) | 2019-02-03 | 2019-02-03 | Valve device and method for manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111520480A true CN111520480A (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910108673.1A Pending CN111520480A (en) | 2019-02-03 | 2019-02-03 | Valve device and method for manufacturing the same |
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| Country | Link |
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| CN (1) | CN111520480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719201A (en) * | 2020-12-02 | 2021-04-30 | 浙江欧伦泰防火设备有限公司 | Valve forging and pressing process |
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| 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 |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112719201A (en) * | 2020-12-02 | 2021-04-30 | 浙江欧伦泰防火设备有限公司 | Valve forging and pressing process |
| 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 |
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