CN201202858Y - Gas charging and pressure retaining valve of air conditioner inner machine - Google Patents
Gas charging and pressure retaining valve of air conditioner inner machine Download PDFInfo
- Publication number
- CN201202858Y CN201202858Y CNU2008200860671U CN200820086067U CN201202858Y CN 201202858 Y CN201202858 Y CN 201202858Y CN U2008200860671 U CNU2008200860671 U CN U2008200860671U CN 200820086067 U CN200820086067 U CN 200820086067U CN 201202858 Y CN201202858 Y CN 201202858Y
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- spool
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- pressure retaining
- internal machine
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Abstract
Disclosed is an air-conditioner internal unit aeration holding pressure valve which relates to a process device used for the manufacturing and mounting process of the air-conditioner internal unit; a plurality of reversing ribs which have the same number with the support arms are evenly distributed on the surface of the inner wall of the shell; ends of the reversing ribs are machined into inclined planes; a plurality of lug bosses are machined on a limit ring; each lug boss is exactly in opposite to the end part of each reversing rib; a plurality of stepped projections extended towards the outer circumferential surface are arranged on the support arms; the projections are matched with the gaps and structurally suitable for the gaps so that the projections can be embedded into the gaps for positioning to enable the valve port to be in the half opening state; the air-conditioner internal unit aeration holding pressure valve has all the advantages of the holding pressure valve in the prior art; besides, the matching structure of the reversing ribs and the lug bosses is arranged to enable the holding pressure valve to have the characteristics of initial valve port half opening, complete closing after once aeration, repeated and continuous aeration; the air-conditioner internal unit aeration holding pressure valve is enabled to satisfy the production process requirement, have high work efficiency and good application effect.
Description
Technical field
The utility model relates to a kind of technology part that is used for air-conditioning internal machine manufacturing and installation process, the inflation pressurize when being used in particular for the air-conditioning internal machine test.
Background technique
Air conditioner needs the sealability of its refrigerant pipe is tested repeatedly in manufacture process.Be in the refrigerant pipe of interior machine, to charge into the nitrogen leak detection earlier, charge into helium leak check and charge into refrigeration agent at last to carry out gas welding and seal leak detection at present to the test mode of the interior machine (indoor set) of split-type air conditioner.If all qualified then product is qualified.In said process, no matter which link finds that gas leakage is arranged, and the release of then need exitting is tested after repairing pipeline again.
Chinese patent (patent No. 200320109072.7) discloses a kind of air-conditioning internal machine inflation pressurize plastic valve, it in the shell of this valve an inner cylinder body, being equipped with in the inner cylinder body can be at the spool that slides along the housing axis direction, be shaped on some grooves that are beneficial to gas communication on the spool, one end of spool is equipped with rubber stopper, and this rubber stopper and inner cylinder body end form the valve port of unlatching or throttle down; One end of spool is subjected to a spring pressure to have the potential energy of close port.Adopt this valve not only can save working procedures and the tooling device and the equipment of original backwardness, and testing efficiency significantly improves, testing cost is able to remarkable reduction; Also effectively guarantee the healthy of staff, reduced pollution of atmosphere.
Yet the copper pipe that this valve is housed seals when being connected carrying out gas welding with refrigerant pipe, needs the sufficient nitrogen of circulation in the pipeline, produces oxidative phenomena with the inner-walls of duct of avoiding weld; But because the valve port of described valve is in closed condition, make nitrogen to circulate naturally, the raising of workmanship and working efficiency is also had some influences.
The model utility content
The purpose of this utility model is to overcome the problems referred to above that exist in the background technique, and a kind of improvement of air-conditioning internal machine inflation pressure retaining valve is provided, and this workpiece should have the original state valve port to be opened, the characteristics that inflation back valve port is closed; And high working efficiency, using effect is good.
The technological scheme that the utility model proposes is: air-conditioning internal machine inflation pressure retaining valve, comprise the single-revolution body case, and be shaped on the internal thread that can be connected in the interface of shell one end with the air-conditioning internal machine refrigerant pipe, the inflation inlet internal fixation of the shell the other end has position limit cycle; Location one spool slidably in the shell inner cavity, spool cooperates the valve port that forms unlatching or throttle down with outer casing inner wall, one end of spool is fixed a leading truck, stretches out at least three braces on the outer peripheral surface of leading truck, and the space between the brace is as the passage of gas flow; The top of each brace contacts the internal surface of described position limit cycle, so that maintenance spool and leading truck are along the linear slide of housing axis; Other has one to be positioned spring energized in spool and leading truck in the shell inner cavity, so that close port; The surface of described outer casing inner wall is evenly equipped with the commutation rib identical with brace quantity, and the commutation rib is towards an end Bevel of position limit cycle; Described position limit cycle is shaped on several boss towards an end of spool, and boss quantity is identical with described commutation rib, and each boss all faces the end of commutation rib, and keeps suitable space with the inclined-plane of commutation rib; Described each brace is provided with the step-like projection of stretching out toward the outer peripheral surface direction again, and the location makes valve port be in semi-open state in this space so that embed for the structure size of this projection and described space fit; This projection also with the inclined-plane mating reaction of commutation rib, make when leading truck is subjected to external force effect linear slide, to rotate again, thereby and move close port driving spool during from the top landing of boss under the pressure of spring.
The angle of the cross section of described inclined-plane and valve is the 30-60 degree.
Seal ring also is housed on the described outer casing inner wall, and spool cooperates the valve port that forms unlatching or throttle down with seal ring.
On the described spool conical plug is housed, this conical plug cooperates the valve port of formation unlatching or throttle down with the internal conical surface on the outer casing inner wall.
The sealing plug of plane shape is housed on the described spool, and the sealing plug cooperates the valve port of formation unlatching or throttle down with the tubular port on the outer casing inner wall.
The axial zone line of described housing exterior also is shaped on respectively around the taking mouthful groove and take a mouthful ridge of external peripheral surface lopping, and the outside of interface one side is shaped on the bolt face that adapts to the spanner interlock application of force.
Cylindrical outside surfaces also can be arranged in the inflation inlet one side outside of described shell, and the outside of interface one side is shaped on the bolt face that adapts to the spanner interlock application of force.
The utility model is finished when dispatching from the factory in manufacturing, adjust by assembling and to make the projection in the described leading truck brace be embedded in the commutation rib inclined-plane and the space between the position limit cycle boss of shell inner cavity, so the valve port between maintenance spool and the outer casing inner wall (or and outer casing inner wall on seal ring between valve port) be in semi-open state; Therefore when carrying out gas welding again after the operator is tightened in the utility model on the refrigerant pipe joint of air-conditioning internal machine, the interior nitrogen of refrigerant pipe still can be overflowed from valve port; The operator directly overlaps general inflation connecting sleeve on the inflation inlet that is pressed in this valve and inflates then, leading truck and spool just are pressed towards simultaneously and move left that (projection in the leading truck brace is slided along commutation rib inclined-plane simultaneously, drive leading truck and spool rotational around valve, slip over the side that the inclined-plane moves to the commutation rib until this projection), valve port is opened fully, the body of inflating just can enter the refrigerant pipe of air-conditioning internal machine smoothly, and nitrogen unnecessary in the cavity is discharged.Inflation finishes, the inflation connecting sleeve is removed (extraneous pressure elimination), under the pressure of spring, sliding to the right of leading truck and spool, and the projection in the leading truck brace can't be returned to original position in the sliding process to the right, but the limit, top of directly passing space and boss from the side of commutation rib is slipped to the bottom (aliging with the same side of boss in this side of commutation rib) of boss, thereby drive the complete close port of spool.
Adopt the utility model, the whole advantages that not only have original pressure retaining valve, and the structure that matches with boss of set commutation rib inclined-plane, it is semi-open to make this valve have an initial valve port, inflation is once closed fully, and the characteristics of repeated inflation continuously make it meet the requirement of production technology more afterwards, and working efficiency is higher, and using effect is better.
Description of drawings
Fig. 1 is the main TV structure schematic representation of one of the utility model embodiment.
Fig. 2 is the main TV structure schematic representation of Fig. 1 embodiment's shell.
Fig. 3 is the three-dimensional sectional structure schematic representation that Fig. 1 embodiment takes off the shell behind the position limit cycle.
Fig. 4 is the main TV structure schematic representation of Fig. 1 embodiment's position limit cycle.
Fig. 5 is the main TV structure schematic representation of Fig. 1 embodiment's spool.
Fig. 6 is the main TV structure schematic representation of one of leading truck of Fig. 1 embodiment.
Fig. 7 is two a main TV structure schematic representation of Fig. 1 embodiment's leading truck.
Fig. 8 is the spool and main TV structure schematic representation after leading truck is fixedlyed connected among Fig. 1 embodiment.
Fig. 9 is the working position schematic representation of chamber wall in the enclosure of the projection in the leading truck brace among Fig. 1 embodiment.
Figure 10 is the utility model embodiment's two a main TV structure schematic representation.
Figure 11 is the main TV structure schematic representation of Figure 10 embodiment's shell.
Figure 12 is the spool and main TV structure schematic representation after leading truck is fixedlyed connected among Figure 10 embodiment.
Figure 13 is the utility model embodiment's three a main TV structure schematic representation.
Figure 14 is the main TV structure schematic representation of Figure 13 embodiment's shell.
Figure 15 is the spool and main TV structure schematic representation after leading truck is fixedlyed connected among Figure 13 embodiment.
Figure 16 is the schematic representation of one of external structure of the present utility model.
Figure 17 is two a schematic representation of external structure of the present utility model.
Among the figure: 1-shell, 1-1 internal thread, 1-2 commutation rib, 1-2-1 inclined-plane, 1-3 take a mouthful groove, 1-4 takes a mouthful ridge, 1-5 bolt face, 1-6 positioning edge, 2-clamping sleeve, 3-spool, 4-seal ring, 5-valve core rod, 6-position limit cycle, 6-1 locating slot, 6-2 boss, 7-leading truck, 7-1 brace, 7-1-1 projection, 8-spring, 9-inflation inlet, 10-valve port, 11-sealing plug, 12-conical plug, 13-spring supporting base.
Embodiment
Below in conjunction with Figure of description, technical solutions of the utility model are described further by embodiment.
This air-conditioning internal machine inflation pressure retaining valve comprises single-revolution body case 1, shell one end interface is shaped on the internal thread 1-1 that is connected with the air-conditioning internal machine refrigerant pipe in (Fig. 1 left side), shell the other end inflation inlet 9 internal fixation have position limit cycle 6 (the position limit cycle outer peripheral surface is shaped on some positioning edge 6-1 or locating slot, to strengthen and the fixedlying connected of shell inner cavity wall portion); But the spool 3 of location one linear slide in the inner chamber of shell (axis along shell slides), spool with outer casing inner wall between on seal ring 4 cooperate and form to open or the valve port 10 of throttle down (is also fixed a clamping sleeve 2 tightly on the described outer casing inner wall, one end roof pressure of this clamping sleeve described seal ring so that its location), one end of spool is fixed a leading truck 7, and leading truck is to stretch out at least three brace 7-1 on a cylindrical outer peripheral surface (Fig. 6 and Fig. 7 have shown the leading truck with four braces and three braces respectively; Commutation rib, brace and boss also all should be provided with identical respectively quantity), space between the brace is as the passage of gas flow, the top of each brace contacts the internal surface of described position limit cycle, so that keep spool and leading truck linear slide along housing axis, other has a spring 8 that is positioned inner cylinder body to force in spool and leading truck, with close port; Above structure all with the structure of existing pressure retaining valve roughly the same.
Improvement of the present utility model is to be evenly equipped with the commutation rib 1-2 identical with described brace quantity (the substantially parallel layout of axis of commutation rib and shell) on the surface of described shell inner cavity; The commutation rib is towards an end Bevel 1-2-1 of position limit cycle, described position limit cycle also is shaped on the boss 6-2 that several stretch out this end towards the end of spool, boss quantity is identical with described commutation rib, and the top of each boss keeps suitable space with the inclined-plane of commutation rib; Be provided with the step-like projection 7-1-1 that stretches out toward the outer peripheral surface direction on described each leading truck brace 7-1 again, the structure size of this projection and described space fit make valve port be in semi-open state so that embed location (7-1-1 ' position among Fig. 9) in this space; This projection also is subjected to the mating reaction on described commutation rib inclined-plane when leading truck slides, leading truck is rotated in the pressurized linear slide, until the side (in Fig. 9 7-1-1 " position) of slippage to the commutation rib.When external force is eliminated (inflation finish back), described projection again under the pressure of spring 8 from the top landing of boss (promptly (7-1-1 ' Fig. 9 " position) thus the drive spool moves close port.
The inclination on described inclined-plane can determine as required that generally speaking, the angle of the cross section of described inclined-plane and valve is recommended as the 30-60 degree.
In second kind of mode of execution of Figure 10 to Figure 12: fix a sealing plug 11 on the spool, the sealing plug directly cooperates the valve port that forms unlatching or throttle down with outer casing inner wall; Also can close pressure retaining valve reliably.
The third mode of execution of Figure 13 to Figure 15 is similar substantially to second kind of mode of execution; Difference only is: in the third mode of execution, be that conical plug 12 on the spool cooperates with internal conical surface on the outer casing inner wall to form and opens or the valve port of throttle down; The sealing plug 11 that second kind of mode of execution then is the plane shape on the spool cooperates with the tubular port on the outer casing inner wall to form to be opened or the valve port of throttle down.
In addition, the axial zone line of the outside of described shell 1 also is shaped on taking mouthful groove 1-3 and taking a mouthful ridge 1-4 around the external peripheral surface lopping respectively, the outside of interface one side is shaped on the bolt face 1-5 (shown in Figure 16) that adapts to spanner (spanner that comprises plum blossom shaped spanner, socket wrench and other structure) the interlock application of force, and these structures all are in order to utilize existing widely used inflation connecting sleeve.With inflation connecting sleeve when inflation, the card pearl on the inflation connecting sleeve embeds when taking mouthful groove, just can inflate by charging air inlet.As another kind of structure, inflation inlet one side of the outside of described shell 1 also can be arranged to tubular profile 1-6 shown in Figure 17, and the outside of interface one side still is shaped on the bolt face 1-5 that adapts to the spanner interlock application of force.
Described seal ring also can adopt other flexible materials except that with the rubber manufacturing, all can adopt plastics to make as other all parts such as plastics, polyurethanes.
Claims (10)
1, air-conditioning internal machine inflation pressure retaining valve comprises single-revolution body case (1), is shaped on the internal thread (1-1) that can be connected with the air-conditioning internal machine refrigerant pipe in the interface of shell one end, and the inflation inlet of the shell the other end (9) internal fixation has position limit cycle (6); Location one spool (3) slidably in the shell inner cavity, spool cooperates the valve port that forms unlatching or throttle down with outer casing inner wall, one end of spool is fixed a leading truck (7), stretches out at least three braces (7-1) on the outer peripheral surface of leading truck, and the space between the brace is as the passage of gas flow; The top of each brace contacts the internal surface of described position limit cycle, so that maintenance spool and leading truck are along the linear slide of housing axis; Other has a spring (8) that is positioned in the shell inner cavity to force in spool and leading truck, so that close port; The surface that it is characterized in that described outer casing inner wall is evenly equipped with the commutation rib (1-2) identical with brace quantity, and the commutation rib is towards an end Bevel (1-2-1) of position limit cycle; Described position limit cycle is shaped on several boss (6-2) towards an end of spool, and boss quantity is identical with described commutation rib, and each boss all faces the end of commutation rib, and keeps suitable space with the inclined-plane of commutation rib; Described each brace is provided with the step-like projection (7-1-1) of stretching out toward the outer peripheral surface direction again, and the location makes valve port be in semi-open state in this space so that embed for the structure size of this projection and described space fit; This projection also with the inclined-plane mating reaction of commutation rib, make when leading truck is subjected to external force effect linear slide, to rotate again, thereby and move close port driving spool during from the top landing of boss under the pressure of spring.
2, air-conditioning internal machine inflation pressure retaining valve according to claim 1, the angle that it is characterized in that the cross section of described inclined-plane and valve is the 30-60 degree.
3, air-conditioning internal machine inflation pressure retaining valve according to claim 1 and 2 is characterized in that also being equipped with on the described outer casing inner wall seal ring (4), and spool cooperates the valve port (10) that forms unlatching or throttle down with seal ring.
4, air-conditioning internal machine inflation pressure retaining valve according to claim 1 and 2 is characterized in that on the described spool conical plug being housed, and this conical plug cooperates the valve port of formation unlatching or throttle down with the internal conical surface on the outer casing inner wall.
5, air-conditioning internal machine according to claim 1 and 2 is inflated pressure retaining valve, it is characterized in that being equipped with on the described spool sealing plug of plane shape, and the sealing plug cooperates the valve port of formation unlatching or throttle down with the tubular port on the outer casing inner wall.
6, air-conditioning internal machine inflation pressure retaining valve according to claim 3, the axial zone line that it is characterized in that described housing exterior also is shaped on respectively around the taking a mouthful groove (1-3) and take a mouthful ridge (1-4) of external peripheral surface lopping, and the outside of interface one side is shaped on the bolt face (1-5) that adapts to the spanner interlock application of force.
7, air-conditioning internal machine inflation pressure retaining valve according to claim 4, the axial zone line that it is characterized in that described housing exterior also is shaped on respectively around the taking a mouthful groove (1-3) and take a mouthful ridge (1-4) of external peripheral surface lopping, and the outside of interface one side is shaped on the bolt face (1-5) that adapts to the spanner interlock application of force.
8, air-conditioning internal machine inflation pressure retaining valve according to claim 5, the axial zone line that it is characterized in that described housing exterior also is shaped on respectively around the taking a mouthful groove (1-3) and take a mouthful ridge (1-4) of external peripheral surface lopping, and the outside of interface one side is shaped on the bolt face (1-5) that adapts to the spanner interlock application of force.
9, air-conditioning internal machine inflation pressure retaining valve according to claim 3 it is characterized in that the inflation inlet one side outer installment of described shell becomes cylindrical outside surfaces, and the outside of interface one side is shaped on the bolt face (1-5) that adapts to the spanner interlock application of force.
10, air-conditioning internal machine inflation pressure retaining valve according to claim 5 it is characterized in that the inflation inlet one side outer installment of described shell becomes cylindrical outside surfaces, and the outside of interface one side is shaped on the bolt face (1-5) that adapts to the spanner interlock application of force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200860671U CN201202858Y (en) | 2008-04-19 | 2008-04-19 | Gas charging and pressure retaining valve of air conditioner inner machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200860671U CN201202858Y (en) | 2008-04-19 | 2008-04-19 | Gas charging and pressure retaining valve of air conditioner inner machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202858Y true CN201202858Y (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200860671U Expired - Lifetime CN201202858Y (en) | 2008-04-19 | 2008-04-19 | Gas charging and pressure retaining valve of air conditioner inner machine |
Country Status (1)
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| CN (1) | CN201202858Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788369A (en) * | 2010-02-12 | 2010-07-28 | 潘炎忠 | Machine for checking tightness of pressure retaining valve of air conditioning indoor unit |
| CN104457061A (en) * | 2014-10-29 | 2015-03-25 | 江苏天舒电器有限公司 | Nitrogen charging device used for leakage detection of gas collecting pipe assembly |
| TWI490132B (en) * | 2012-04-27 | 2015-07-01 | Wen San Chou | Connector structure of flexible linking tube for a vehicle-carried air compressor |
| TWI660871B (en) * | 2017-12-25 | 2019-06-01 | 已久工業股份有限公司 | Non-return joint structure of series hose of vehicle air compressor |
| CN109990162A (en) * | 2019-03-28 | 2019-07-09 | 格力电器（合肥）有限公司 | Self-styled nut and air-conditioning |
-
2008
- 2008-04-19 CN CNU2008200860671U patent/CN201202858Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788369A (en) * | 2010-02-12 | 2010-07-28 | 潘炎忠 | Machine for checking tightness of pressure retaining valve of air conditioning indoor unit |
| CN101788369B (en) * | 2010-02-12 | 2011-08-31 | 潘炎忠 | Machine for checking tightness of pressure retaining valve of air conditioning indoor unit |
| TWI490132B (en) * | 2012-04-27 | 2015-07-01 | Wen San Chou | Connector structure of flexible linking tube for a vehicle-carried air compressor |
| CN104457061A (en) * | 2014-10-29 | 2015-03-25 | 江苏天舒电器有限公司 | Nitrogen charging device used for leakage detection of gas collecting pipe assembly |
| CN104457061B (en) * | 2014-10-29 | 2016-09-28 | 江苏天舒电器有限公司 | A kind of nitrogen charging device for collecting pipe component leak detection |
| TWI660871B (en) * | 2017-12-25 | 2019-06-01 | 已久工業股份有限公司 | Non-return joint structure of series hose of vehicle air compressor |
| CN109958602A (en) * | 2017-12-25 | 2019-07-02 | 已久工业股份有限公司 | The non-return joint structure of the concatenation hose of vehicle-mounted air compressor |
| CN109958602B (en) * | 2017-12-25 | 2021-07-20 | 已久工业股份有限公司 | Check joint structure of serially connected hose of vehicle-mounted air compressor |
| CN109990162A (en) * | 2019-03-28 | 2019-07-09 | 格力电器（合肥）有限公司 | Self-styled nut and air-conditioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |
|
| CX01 | Expiry of patent term |