CN102135183A - Valve gear - Google Patents
Valve gear Download PDFInfo
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- CN102135183A CN102135183A CN201010103564XA CN201010103564A CN102135183A CN 102135183 A CN102135183 A CN 102135183A CN 201010103564X A CN201010103564X A CN 201010103564XA CN 201010103564 A CN201010103564 A CN 201010103564A CN 102135183 A CN102135183 A CN 102135183A
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- valve
- path
- slot part
- valve rod
- valve body
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- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a valve gear comprising a valve body and a valve rod, wherein the valve rod is provided with a valve head. The valve head capable of moving forwards and backwards is arranged in the valve body. The valve head is contacted with or separated from a valve seat according to the rotation operation of the valve rod, wherein the valve seat is arranged between a first path and a second path formed in the valve body. The valve body is provided with a third path opposite to the second path, and the third path is provided with a valve core, wherein a thread part of the valve rod meshed with a thread hole in the valve body is provided with a slot, and the slot is provided opposite to the valve core at the same time. A coolant can freely flow due to no need of largely changing the structure of the valve gear, thus the required coolant can be quickly filled.
Description
Technical field
The present invention relates to a kind of control valve unit, particularly a kind of outdoor unit and indoor set that is used for connecting air conditioner, and be used for the control valve unit that can fill refrigerant rapidly of switch refrigerant pipeline.
Background technique
Control valve unit is outdoor unit and the indoor set that is used for connecting air conditioner, before the machine of installing an air-conditioner fluid passages such as refrigerant is disconnected, and what again its coolant path is communicated with when installing a kind ofly operates manual switch valve.In addition, control valve unit is equipped with valve inside, when filling described refrigerant in air conditioner, can fill by described valve inside.For example, the disclosed a kind of control valve unit that described valve inside is installed of Patent Document 1 (spy opens 2001-132991).
Promptly, as Fig. 2 and shown in Figure 3, inside 11 with valve body 1 of the 1st path 6 and the 2nd path 7 is provided with the bar-shaped spool (to call valve rod 2 in the following text) that valve head 21 and operating end axial region 22 by circular cone shape are constituted, in addition, between described the 1st path 6 of described valve body 1 inside and the 2nd path 7, be provided with valve seat 13.By driving described operating end axial region 22, described valve rod 2 can move in the inside 11 of described valve body 1, moves by this, and described valve rod 2 can contact with described valve seat 13 or separate, thus but described the 1st path 6 of switch and described the 2nd path 7.This switch motion be by formed tapped hole 12 in the described valve body 1 be meshed with the screw section 23 of described valve rod 2, the mobile realization of described valve rod 2 advance and retreat.In addition, before air conditioner is installed, as shown in Figure 2, and in the valve seat 13 that forms between the 1st passage 6 that the described valve head 21 of described valve rod 2 is provided with on valve body 1 and the 2nd passage 7, thus the 1st passage 6 of close chamber's external system side; After air conditioner is installed, as shown in Figure 3, by described operating end axial region 22, described valve rod 2 advance and retreat are moved, during the stop position of the stopper ring 5 on moving to described valve body 1, described the 1st path 6 is opened, and by valve seat 13, described the 1st path 6 is connected with described the 2nd path 7 of the indoor units side of described air conditioner.
In addition, sealed member 3 is arranged between described valve body 1 and the described valve rod 2, is used for preventing the coolant leakage between described valve body 1 and the described valve rod 2, and cap 4 is installed on its end for an end that coats described valve body.
Moreover described valve body 1 is equipped with refrigerant and fills with connector 8, is provided with valve inside 9 in the path 8a as the described connector 8 of the 3rd path, described the 3rd path 8a and the configuration of described the 2nd path 7 subtends, and the end of described connector 8 is engaged with nut 14.
And refrigerant is filled in the air conditioner by described valve inside 9.
But above-mentioned control valve unit is that nut 14 is taken off from described valve body 1 when mounted, fills refrigerant by valve inside 9, and this refrigerant then is to be passed through by the screw section 23 of described valve rod 2 and the gap location of valve body screw thread 12.
Since described refrigerant the thread pitch of described valve rod and valve body as path, so, exist refrigerant longer, and refrigerant is difficult to the problem of filling rapidly by needed time.
Summary of the invention
In order to solve the problem that above prior art exists, the invention provides a kind of control valve unit, owing to do not need significantly to change the formation of control valve unit, but therefore just free flow of refrigerant, can promptly fill refrigerant.
Technical solution of the present invention is:
Control valve unit of the present invention comprises valve body and the valve rod that is provided with valve head; Described valve head can be arranged in the described valve body with advancing and retreat;
Revolution operation according to described valve rod, the valve head of described valve rod can contact with set valve seat between the 1st path in being formed on described valve body and the 2nd path or separate, described valve body is formed with the 3rd path with described the 2nd path subtend configuration, and described the 3rd path is provided with valve inside;
Wherein, the screw section that the tapped hole with in the described valve body of described valve rod is meshed is formed with slot part, and simultaneously, described slot part and described valve inside subtend are provided with.
By the present invention as can be known, when filling refrigerant in air conditioner, because the refrigerant that flows into described control valve unit by described valve inside is that formed slot part circulates on the screw section by described valve rod, so refrigerant can pass through at an easy rate.Because described refrigerant can pass through from the described slot part beyond the described thread pitch, therefore can finish filling rapidly.
So a kind of control valve unit provided by the present invention does not only need significantly to change the formation of described control valve unit but also the assembling that can not influence control valve unit.
In addition, described slot part of the present invention can be relative with described valve inside to the summary neutral position that is configured in described threaded stem portion.
Therefore, described valve inside and described slot part can form the state that is connected, and described refrigerant can flow into described slot part rapidly.
In addition, the shape that slot part of the present invention can groove is configured on the described screw section.
Owing to can on the processing valve rod, form the groove of described screw section in the slot part of sealed member, thereby also can not cause the rising of cost.
And, because therefore passing through in described groove that described refrigerant can be slick and sly can further improve the filling speed of refrigerant.
Moreover among the present invention, the groove width W of described groove is preferably 1mm＜W＜8mm and groove depth D is 0.5mm＜D＜5mm.
Therefore, control valve unit of the present invention when can fully guarantee refrigerant by stream by groove width W and groove depth D, does not also need to reduce the tooth number of the screw section on the too many described valve rod.And the existence of described groove also can not influence the intensity of described valve rod.
Learn that by above explanation the present invention has following advantage really:
By the present invention as can be known, owing to be formed with slot part on the screw section of described valve rod, so when filling refrigerant, refrigerant can pass through from described slot part easily, therefore, refrigerant can be filled rapidly.
In addition, control valve unit of the present invention do not need too big change on the basis that existing control valve unit constitutes, and the assembling work of control valve unit can not be affected yet yet.
And, because described slot part is arranged on the neutral position of described screw section, therefore, described slot part and described valve inside and be provided with the 3rd path of described valve inside and the 2nd path of outdoor unit can be relative to the configuration.Described valve inside and described slot part form the state that is connected by described the 3rd path, thereby described refrigerant can pass through from described slot part rapidly.
Moreover, because described slot part is groove, so, can form this slot part simultaneously during the described sealed member slot part of machining, therefore, described groove ratio is easier to form, thus control valve unit of the present invention also can not cause the rising of cost.
In addition, the groove width by setting described groove and the desirable amount of groove depth when can guarantee fully that refrigerant is filled with stream, can be kept the intensity of described valve rod, and the worm tooth number of realizing the described threaded stem portion of regulation.Thereby, originally can realize a kind of control valve unit with the mobile described valve rod of can advancing and retreat, in addition, described valve rod has the groove that refrigerant is filled rapidly.
Description of drawings
Fig. 1 is the sectional view of control valve unit one specific embodiment of the present invention;
Fig. 2 installs preceding sectional view for existing control valve unit;
Fig. 3 is for having the sectional view after control valve unit is installed now.
The primary component label declaration:
1: valve body 11: valve inner 12: tapped hole
13: valve seat 2: valve rod 21: valve head
22: operating end axial region 23: screw section 24: slot part
3: sealed member 4: cap 5: stopper ring
7: the 2 paths 8 of 6: the 1 paths: refrigerant is filled and is used connector
8a: the 3rd path 9: valve inside 14: nut
10: valve rod 101: screw section 102: slot part
103: valve head 104: the operating end axial region
Embodiment
Understand for technical characteristics of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
Fig. 1 is the sectional view of the present invention's one specific embodiment.In the mode of execution shown in Figure 1, only have the formation of screw section 101 of valve rod 10 different with existing control valve unit shown in Figure 2, other are all identical, and therefore, the part identical with Fig. 2 represented with prosign, saves detailed description.
Among Fig. 1, valve rod 10 has the circular cone shape valve head 103 that is positioned at described valve seat 13 side tops, screw section 101 that forms and the operating end axial region 104 that links to each other and form with described screw section 101 link to each other with described valve head 103.The summary neutral position of described screw section 101 is formed with the slot part 102 as groove.By such setting, described slot part 102 can with described valve inside 9 subtend settings.The material of described valve rod 10 can be brass etc.And, described slot part 102 and adjacent the forming of the thread profile that constitutes described screw section 101 (not having diagram), described screw section 101 is meshed with described tapped hole 12.
In addition, device has sealed member 3 on the described operating end axial region 104 of described valve rod 10.
Moreover, in this specific embodiment of the present invention, near the desirable amount of the formed groove as described slot part 102 in the summary neutral position of the described screw section 101 on the described valve rod 10 be: the setting numerical value of its groove width W is that the setting numerical value of 1mm＜W＜8mm and groove depth D is 0.5mm＜D＜5mm.
When described W is 1mm when following, described groove is because width is too narrow, and the path that the refrigerant of formation flows is little, thereby can not guarantee fully that its path is unobstructed, and the filling of refrigerant also is difficult for carrying out, and then does not reach the purpose of rapid filling refrigerant.
In addition, when described W is 8mm when above,,, thereby make the described valve rod 10 of advancing and retreat be difficult for moving by the described tapped hole 12 and the engagement of described screw section 101 so the worm tooth number of described screw section 101 will reduce owing to be formed with described groove.
Moreover when described D is 0.5mm when following, described groove can not be guaranteed the path that its refrigerant flows fully because the degree of depth is too shallow.In addition, when described D is 5mm when above, cause valve rod 10 less, thereby influence the intensity of described valve rod 10 at the diameter at this position.
In the above-mentioned formation, by described operating end axial region 104, described valve rod 10 can move in the inside 11 of described valve body 1, moves the switch that can realize described the 1st path 6 and described the 2nd path 7 by this.This switch motion is by the engagement of formed tapped hole 12 in the described valve body 1 with the screw section 101 of described valve rod 10, and described valve rod 10 is advanced and retreat and moved and realize.In addition, before air conditioner is installed, in the valve seat 13 that forms between the 1st passage 6 that the described valve head 103 of described valve rod 10 is provided with on valve body 1 and the 2nd passage 7, and the 1st passage 6 of close chamber's external system side; After air conditioner is installed, by described operating end axial region 104, described valve rod 10 advance and retreat are moved, during the stop position of the stopper ring 5 on moving to described valve body 1, described the 1st path 6 is opened, by valve seat 12, described the 1st path 6 is connected with described the 2nd path 7 of the indoor units side of described air conditioner.
In addition, when filling refrigerants,, the described valve head 103 of described valve rod 10 is contacted with described valve seat 13 with the same before the above-mentioned installation by described valve inside 9, described valve seat 13 quilt obturations, thus described the 1st path 6 of described outdoor unit is closed.By described slot part 102 and described valve inside 9 subtends are disposed, described slot part 102 and described valve inside 9 can form connected state by described the 3rd path 8a, thereby described refrigerant can flow into described slot part 102 rapidly.
And, be path with described slot part 102, described refrigerant can be filled rapidly by described slot part 102.In addition, described slot part 102 forms groove as shown in Figure 1, because described refrigerant can be mobile sleekly in this groove, so described refrigerant can promptly be filled.
Moreover therefore described slot part 102, when a kind of control valve unit provided by the present invention does not need to change the formation of existing control valve unit on a large scale, can not influence its assembling owing to the screw section 101 that can simply be formed on described valve rod 10 by machining yet.As a result, can not cause the rising of cost.
The above only is the schematic embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.
Claims (4)
1. a control valve unit comprises valve body and the valve rod that is provided with valve head; Described valve head can be arranged in the described valve body with advancing and retreat;
Revolution operation according to described valve rod, the valve head of described valve rod be formed on described valve body in the 1st path and the 2nd path between set valve seat contact or separate, described valve body is formed with the 3rd path with described the 2nd path subtend configuration, and described the 3rd path is provided with valve inside;
It is characterized in that the screw section that the tapped hole in described valve rod and the described valve body is meshed is formed with slot part, simultaneously, described slot part and the setting of described valve inside subtend.
2. control valve unit as claimed in claim 1 is characterized in that, described slot part is arranged at the summary neutral position of the screw section of described valve rod.
3. control valve unit as claimed in claim 1 or 2 is characterized in that, described slot part is the groove that is formed on the described screw section.
4. control valve unit as claimed in claim 3 is characterized in that, the groove width W of described groove is that 1mm＜W＜8mm and groove depth D are 0.5mm＜D＜5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103564XA CN102135183A (en) | 2010-01-27 | 2010-01-27 | Valve gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103564XA CN102135183A (en) | 2010-01-27 | 2010-01-27 | Valve gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102135183A true CN102135183A (en) | 2011-07-27 |
Family
ID=44295055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010103564XA Pending CN102135183A (en) | 2010-01-27 | 2010-01-27 | Valve gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102135183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822109A (en) * | 2018-08-08 | 2020-02-21 | 浙江三花智能控制股份有限公司 | Valve device |
-
2010
- 2010-01-27 CN CN201010103564XA patent/CN102135183A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822109A (en) * | 2018-08-08 | 2020-02-21 | 浙江三花智能控制股份有限公司 | Valve device |
| CN110822109B (en) * | 2018-08-08 | 2023-05-23 | 浙江三花智能控制股份有限公司 | Valve device |
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Application publication date: 20110727 |