CN203641564U - Stop valve stem for air conditioners - Google Patents
Stop valve stem for air conditioners Download PDFInfo
- Publication number
- CN203641564U CN203641564U CN201420017469.1U CN201420017469U CN203641564U CN 203641564 U CN203641564 U CN 203641564U CN 201420017469 U CN201420017469 U CN 201420017469U CN 203641564 U CN203641564 U CN 203641564U
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- Prior art keywords
- valve stem
- stem body
- valve
- hole
- block
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Abstract
The utility model provides a stop valve stem for air conditioners. The stop valve stem is mainly applied to stop valves for air conditioner outdoor units and comprises a valve stem body. The valve stem body is provided with an inner through hole penetrating the upper and lower ends of the valve stem body. The outer wall of the valve stem body is provided with a circular groove I close to the upper end and an external thread close to the lower end. The outer wall of the valve stem body is provided with a circular groove II in the middle of the valve stem body; the outer diameter L1 of the part, above the groove II, of the valve stem body is larger than the outer diameter L2 of the part, below the groove II, of the valve stem body. When the stop valve stem is mounted on the stop valve for use, a spool is mounted in the through hole of the valve stem body; the structure of the whole stop valve is compact and reasonable and manufacture cost can be greatly reduced; meanwhile, the structure of the valve stem is modified, the circular groove II is arranged in the outer wall of the middle of the valve stem body, the valve stem body can well match with a valve body, and the stop valve is damaged rarely during use.
Description
Technical field
The utility model relates to a kind of stop valve for air conditioner valve rod.
Background technique
Domestic air conditioning generally adopts split-type design, and it comprises indoor set and outdoor unit two-part, and indoor set and outdoor unit are provided with the stop valve using when air-conditioning is installed and air-conditioning overhauls.Stop valve operated by rotary motion is on outdoor unit, after separate type air conditioner is installed, its coolant circulates refrigeration by copper pipe and stop valve between indoor set and outdoor unit, but in the time that air-conditioning is not installed front or air-conditioning in maintenance, the stop valve on outdoor unit is in cut-off state.Air-conditioner stop valve of the prior art adopts four-way structure mostly, as Fig. 1, it comprises valve body 01, valve rod 02 and valve inside 03, in valve body 01, be provided with four passages, valve rod 02 be located in one of them passage and with valve body 01 screw-thread fit, valve inside 03 is located in a passage adjacent with the passage that valve rod 02 is set, valve inside 03 only can make medium from outside to valve body in unidirectional passing through, be mainly used in want external injection refrigerant; In two other passage, one be communicated with indoor set, another is communicated with outdoor unit; When stop valve is opened, the passage being communicated with indoor set and the passage being communicated with outdoor unit communicate; When stop valve is closed, the inside precession of valve rod 02, until its end is against the oral area of passage corresponding thereto, the passage being communicated with by the passage being communicated with indoor set with outdoor unit disconnects.The stop valve of this structure, relatively large in valve body 01 overall structure, materials are more, and cost is relatively high; And easy stripped thread between valve body 01 and valve rod 02; Further, when stop valve is closed, especially, after long-time use, the carrier frequency channel break that valve rod 02 can not be communicated with by the passage being communicated with indoor set with outdoor unit completely, causes stop valve to lose efficacy.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of stop valve for air conditioner valve rod, be arranged on while use on stop valve, valve inside is arranged in the through hole in valve stem body, can make stop valve structure compact and reasonable on the whole, can greatly reduce manufacture cost, the structure of valve rod is improved, and valve body cooperation is better simultaneously, not fragile in stop valve using process.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: stop valve for air conditioner valve rod, comprise valve stem body, in described valve stem body, be provided with the through hole that runs through the upper and lower two ends of valve stem body, on the outer side wall of described valve stem body, be provided with a circle groove I near upper end, on the outer side wall of described valve stem body, be provided with outside thread near lower end, the middle part that is positioned at valve stem body on the outer side wall of described valve stem body is provided with a circle groove II, is positioned at the external diameter L of the valve stem body part of groove II top
1be greater than the external diameter L of the valve stem body part that is positioned at groove II below
2.
As preferably, the valve stem body outer side wall that is positioned at valve stem body upper end is provided with screens step.
As preferably, end, described valve stem body lower end has boss, and the upper end of described boss is that frustum, lower end are pylon, and the external diameter of described frustum reduces finally to equate with the external diameter of pylon from top to bottom gradually.
As preferably, described through hole comprises through hole I and through hole II from top to bottom, described through hole I is hexagon ring, described through hole II comprises cylindrical hole I, conical bore and cylindrical hole II from top to bottom, on described cylindrical hole I hole wall, be provided with internal thread, on described valve inside outer wall, be provided with the outside thread with this screw-internal thread fit.
As preferably, in described through hole II, be provided with and be provided with successively block I, block II and spring from top to bottom, described block I be fixed in through hole II and and through hole II hole wall between seal by Sealing I, the middle part of described block I is provided with the pore that runs through block I upper and lower surface, the bottom that described spring bottom is against on the hole wall of conical bore, top is against block II pushes up block II to block I, and the sidepiece of described block II has some gap.
As preferably, described block II end face is embedded with a circle Sealing II, and described pore is positioned at the scope that Sealing II surrounds.
Beneficial effect:
The stop valve for air conditioner valve rod that the utility model adopts technique scheme to provide, valve inside is arranged in valve stem body, be arranged on together with valve inside while use on stop valve, guaranteeing under the prerequisite that stop valve original function is constant, can make stop valve structure compact and reasonable on the whole, can greatly reduce manufacture cost, the structure of valve rod is improved simultaneously, on the sidewall of valve rod middle part, groove is set, while cooperation with valve body, make to there is certain space between valve stem body and valve body, between valve stem body and valve body, both can coordinate preferably, valve stem body is easily rotated simultaneously, can not deviate from or fall in valve body, improve the usability of stop valve, not fragile in stop valve using process, lower end in valve stem body arranges boss, can well stretch into blocking-up second channel and third channel in third channel, sealability is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing stop valve;
Fig. 2 is the structural representation of the utility model valve rod;
Fig. 3 is that in the utility model embodiment one, valve rod is arranged on the structural representation while use on valve body;
Fig. 4 is the enlarged view at C place in Fig. 3;
Fig. 5 is that A in Fig. 3 is to view;
Fig. 6 is the enlarged view at D place in Fig. 5;
Fig. 7 is that B in Fig. 3 is to view;
Fig. 8 is the utility model embodiment two structural representation;
Fig. 9 is the structural representation of block I in the utility model embodiment two;
Figure 10 is the structural representation of block II in the utility model embodiment two.
Embodiment
Be illustrated in figure 2 a kind of embodiment of stop valve for air conditioner valve rod in the present embodiment, Fig. 3 to 7 is depicted as other accessories such as the utility model and valve body 1 and is assembled into a kind of embodiment that stop valve uses, in valve body 1, there is first passage 11, second channel 12 and third channel 13, first passage 11, second channel 12 and third channel 13 form three-port structure, first passage 11 and third channel 13 are coaxial, first passage 11 internal diameters are greater than third channel 13 internal diameters, second channel 12 is perpendicular to first passage 11 and third channel 13, and the both sides of valve body 1 are respectively provided with a mounting ear; Valve stem body 2 is assemblied in while use in first passage 11, in valve stem body 2, be provided with the through hole that runs through valve stem body two ends Shang Xia 2, through hole comprises through hole I 27 and through hole II 28 from top to bottom, through hole I 27 is hexagon ring, be used for making hexagon wrench to stretch into rotation valve rod body 2, in through hole II 28, be equipped with valve inside 9, wherein through hole II 28 comprises cylindrical hole I 281, conical bore 282 and cylindrical hole II 283 from top to bottom, on cylindrical hole I 281 hole walls, be provided with internal thread, on valve inside 9 outer walls, be provided with the outside thread with this screw-internal thread fit; On the outer side wall of valve stem body 2, be positioned at the one end away from second channel 12 and third channel 13---be to locate to be provided with a circle groove I 21 on the outer side wall of valve stem body 2 upper ends, in groove I 21, be provided with seal ring 3 and seal between valve body and valve stem body for making, preferably seal ring 3 is O type circle; On the outer side wall of valve stem body 2, be positioned at the one end near second channel 12 and third channel 13---be to be provided with outside thread 22 on the outer side wall of valve stem body 2 lower ends, first passage 11 inwalls are provided with the internal thread coordinating with valve stem body 2 outside threads, the middle part that is positioned at valve stem body 2 on the outer side wall of valve stem body 2 is provided with a circle groove II 23, and first passage 11 inwalls are provided with back-up ring 4 and drop out for preventing valve stem body 2; On first passage 11 inwalls, there is step surface 14, the internal diameter that is positioned at more than 14 first passage 11 parts of step surface is greater than the internal diameter that is positioned at first passage 11 parts of step surface below 14, internal thread on first passage 11 inwalls is located at and is positioned in first passage 11 parts of step surface below 14, is positioned at the external diameter L of more than 23 valve stem body 2 parts of groove II
1be greater than the external diameter L that is positioned at valve stem body 2 parts of groove II below 23
2make more than 23 valve stem body 2 parts of groove II can be preferably and first passage 11 inwalls coordinate, avoid foreign matter to enter between the outside thread outside internal thread and the valve stem body 2 on first passage 11 inwalls, valve stem body 2 can not rotated excessively and be come off down in the process of backspin simultaneously.Valve stem body 2 end, upper end outer side walls are provided with screens step 25, and when valve stem body 2 outwards screws out, back-up ring 4 keeps off at screens step 25 and sentences and prevent that valve stem body 2 from dropping out.Valve stem body 2 ends, lower end have boss 26, the upper end of boss 26 is that frustum 261, lower end are pylon 262, the external diameter of frustum 261 reduces finally to equate with the external diameter of pylon 262 from top to bottom gradually, the external diameter of pylon 262 is less than the internal diameter of third channel 13, and the external diameter of frustum 261 upper ends is greater than the internal diameter of third channel 13.On valve body 1, be positioned at first passage 11 oral areas and be stamped bonnet 5, valve body 1 is threaded with bonnet 5.The corresponding first passage of bonnet 5 inner chambers 11 oral area ends are provided with a circle protruding flange 51 downwards.On valve body 1, be positioned at second channel 12 oral areas and be stamped plastic nut 6, valve body 1 is threaded with plastic nut 6.On valve body 1, be positioned at second channel 12 oral areas and be connected with adapter 7.Taking over 7 is the bend pipe of a bending, taking over 7 bending part bending radius is 15mm, takes over the concave point 71 on the close outer side wall of lower end on 7 with indent, and the degree of depth of concave point 71 is 0.3～0.5mm, concave point 71 and the distance of taking between 7 lower end surfaces are 10mm, and the lower end oral area of adapter 7 is plugged with stopper 8.While delivering to customer after production completes, return and close 1/4～1/2 circle after valve stem body standard-sized sheet, plastic nut tightens by 6～8Nm moment of torsion, and bonnet tightens by 6.5～8.5Nm moment of torsion.
Fig. 8, 9 and 10 are depicted as the second embodiment of the present utility model, structure is basic identical with embodiment one, difference is, valve inside is not installed in through hole, set gradually block I 91 from top to bottom but be provided with in through hole II 28, block II 93 and spring 95, block I 91 is fixed in through hole II 28, block I 91 is threaded with through hole II 28, between block I 91 and through hole II 28 hole walls, seal by Sealing I 97, the middle part of block I 91 is provided with the pore 92 that runs through block I 91 upper and lower surfaces, spring 95 bottoms are against on the hole wall of conical bore 282, top is against the bottom of block II 93 block II 93 is pushed up to block I 91, the sidepiece of block II 93 has some gap 94.Block II 93 end faces are embedded with a circle Sealing II 96, and described pore 92 is positioned at the scope that Sealing II 96 surrounds.When normal use, spring 95 is against block II 93 in block I 91, to block pore 92, in the time that need inject refrigerant, the pressure of the refrigerant of external refrigerant pipe makes spring 95 compress, block II 93 is pressed from block I 91, refrigerant enters from the gap 94 of pore 92 and block II 93, the end face of block I 91 is provided with hexagonal mounting hole 8, for coordinating with hexagon wrench, block I 91 is installed.
Claims (6)
1. stop valve for air conditioner valve rod, comprise valve stem body (2), it is characterized in that: in described valve stem body (2), be provided with the through hole that runs through the upper and lower two ends of valve stem body (2), on the outer side wall of described valve stem body (2), be provided with a circle groove I (21) near upper end, on the outer side wall of described valve stem body (2), be provided with outside thread (22) near lower end, the middle part that is positioned at valve stem body (2) on the outer side wall of described valve stem body (2) is provided with a circle groove II (23), is positioned at the external diameter L of valve stem body (2) part of groove II (23) top
1be greater than the external diameter L of valve stem body (2) part that is positioned at groove II (23) below
2.
2. stop valve for air conditioner valve rod according to claim 1, is characterized in that: valve stem body (2) outer side wall that is positioned at valve stem body (2) upper end is provided with screens step (25).
3. stop valve for air conditioner valve rod according to claim 1 and 2, it is characterized in that: described valve stem body (2) end, lower end has boss (26), the upper end of described boss (26) is that frustum (261), lower end are pylon (262), and the external diameter of described frustum (261) reduces finally to equate with the external diameter of pylon (262) from top to bottom gradually.
4. stop valve for air conditioner valve rod according to claim 1 and 2, it is characterized in that: described through hole comprises through hole I (27) and through hole II (28) from top to bottom, described through hole I (27) is hexagon ring, described through hole II (28) comprises cylindrical hole I (281), conical bore (282) and cylindrical hole II (283) from top to bottom, on described cylindrical hole I (281) hole wall, is provided with internal thread.
5. stop valve for air conditioner valve rod according to claim 4, it is characterized in that: in described through hole II (28), be provided with and be provided with successively block I (91) from top to bottom, block II (93) and spring (95), described block I (91) be fixed in through hole II (28) and and through hole II (28) hole wall between by Sealing I (97) sealing, the middle part of described block I (91) is provided with the pore (92) that runs through block I (91) upper and lower surface, described spring (95) bottom is against on the hole wall of conical bore (282), top is against the bottom of block II (93) block II (93) is pushed up to block I (91), the sidepiece of described block II (93) has some gap (94).
6. stop valve for air conditioner valve rod according to claim 5, is characterized in that: described block II (93) end face is embedded with a circle Sealing II (96), and described pore (92) is positioned at the scope that Sealing II (96) surrounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017469.1U CN203641564U (en) | 2014-01-10 | 2014-01-10 | Stop valve stem for air conditioners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017469.1U CN203641564U (en) | 2014-01-10 | 2014-01-10 | Stop valve stem for air conditioners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641564U true CN203641564U (en) | 2014-06-11 |
Family
ID=50872809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017469.1U Expired - Fee Related CN203641564U (en) | 2014-01-10 | 2014-01-10 | Stop valve stem for air conditioners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546212A (en) * | 2016-03-01 | 2016-05-04 | 江苏神通阀门股份有限公司 | High-temperature valve rod structure and machining method thereof |
-
2014
- 2014-01-10 CN CN201420017469.1U patent/CN203641564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546212A (en) * | 2016-03-01 | 2016-05-04 | 江苏神通阀门股份有限公司 | High-temperature valve rod structure and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |