CN204878754U - Stop valve - Google Patents
Stop valve Download PDFInfo
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- CN204878754U CN204878754U CN201520401577.3U CN201520401577U CN204878754U CN 204878754 U CN204878754 U CN 204878754U CN 201520401577 U CN201520401577 U CN 201520401577U CN 204878754 U CN204878754 U CN 204878754U
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- valve
- mounting groove
- core rod
- rolling bearing
- stop valve
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Abstract
The utility model discloses a stop valve belongs to cooler air -conditioner technical field, the serious technical problem of valve block wearing and tearing in the stop valve working process among the solution prior art, the utility model provides a stop valve includes valve body and case, is equipped with the valve port in the valve body, and case axial up -and -down motion in the valve body includes fashioned valve plug stem of components of a whole that can function independently and valve block with switching valve port, case, and the outer disc of valve plug stem bottom is equipped with the boss, boss and valve body screw thread fit connection, and valve plug stem's bottom surface is equipped with the mounting groove, is equipped with the spliced pole on the valve block, and spliced pole part at least rotates the connection at the mounting groove to make valve plug stem valve block rotation relatively.
Description
[technical field]
The utility model relates to a kind of stop valve.
[background technique]
The air-conditioner stop valve of existing refrigeration system has valve body and is arranged on the spool in valve body, valve body is provided with valve port, and spool comprises valve core rod and valve block, and valve core rod is connected with valve body screw thread, control valve core rotation and make the relative valve port motion of valve block, to control the opening and closing of valve port.But in using process, it is follow-up continuous towards tightening direction rotational valve core that valve block closes valve port, can produce friction between valve block and valve body, cause the wearing and tearing of valve block large, reduce the working life of stop valve.
[summary of the invention]
The technical problem that the utility model solves is to provide a kind of stop valve, easy for installation, long service life.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of stop valve, comprise valve body and spool, be provided with valve port in described valve body, described spool axially moves up and down with valve port described in opening and closing in valve body, and described spool comprises point body formed valve core rod and a valve block, the periphery of described valve core rod bottom is provided with boss, described boss and valve body screw thread are connected, and the bottom surface of described valve core rod is provided with mounting groove, and described valve block is provided with attachment post, described attachment post is rotatably connected on mounting groove at least partly, can rotate to make valve core rod relative to valve block.
Further, be provided with rolling bearing in described mounting groove, described rolling bearing comprises inner ring, outer ring and the roller between inner ring and outer ring, the inner ring interference fit of described attachment post and rolling bearing.
Further, described mounting groove is provided with step, and end face and the step of described outer ring offset.
Further, described outer ring and mounting groove interference fit.
Further, the notch place of described mounting groove is provided with the bulge loop of outstanding rolling bearing bottom surface, described bulge loop towards the axis direction riveting bending of mounting groove, and with the bottom surface of outer ring offset with by spacing for rolling bearing in mounting groove.
Further, be connected with packing ring bottom described valve core rod, the bottom surface of described packing ring and outer ring offsets, with by spacing for described rolling bearing in mounting groove.
Further, described valve core rod bottom surface is provided with the baffle plate of annular, and described packing ring is arranged in baffle plate, and described baffle plate towards the riveting bending of packing ring direction, and offsets with packing ring bottom surface.
Further, described packing ring is open washer, described open washer and mounting groove interference fit.
Further, described packing ring is open washer, and the bottom surface of described valve core rod is provided with the lug boss of annular, the inwall interference fit of described open washer and lug boss.
Further, described valve block is provided with the seal ring for closed valve port.
The beneficial effects of the utility model:
Stop valve of the present utility model, valve core rod coordinates with valve body screw thread and rotates, and valve core rod and valve block can be made to move towards valve port, the bottom of valve block and the inwall of valve body offset valve port is closed after, even if be rotated further valve core rod, because valve core rod and valve block are rotatedly connected, and valve block has been leaned between the inwall and valve core rod of valve body, now, the rotation of valve core rod can not be with moving valve plate to rotate, to reduce the friction between valve block and valve body, reduce the wearing and tearing of valve block, extend the working life of stop valve.
Compare and groove is set at the end face of valve block, in the mode that the bottom of valve core rod and groove are rotationally connected, the diameter designing valve block is needed to be greater than the diameter of valve core rod bottom, therefore the top of valve body needs to design the installation sleeve being greater than valve block diameter, the upper end of valve core rod and installation sleeve screw-thread fit, could be fitted in valve body by spool, the length of this structure lower valve core is long, the height of stop valve is high, increases manufacture difficulty and the manufacture cost of stop valve.The utility model, for this consideration, is provided with boss at the periphery of valve core rod bottom, and boss is connected with valve inner screw-thread fit, so designs, the length of valve core rod and the height of stop valve less.In order to realize being rotationally connected of valve core rod and valve block, be provided with mounting groove in valve core rod bottom surface, valve body arranges attachment post and is rotationally connected mounting groove, and being rotationally connected of stop valve and valve core rod can not affect coordinating of valve core rod and valve body, therefore install and manufacture simple, cost is low.
These features of the present utility model and advantage will embodiment below, exposure detailed in accompanying drawing.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation one of spool in the utility model embodiment two;
Fig. 3 is the structural representation two of spool in the utility model embodiment two;
Fig. 4 is the structural representation of spool in the utility model embodiment three;
Fig. 5 is the structural representation of the utility model embodiment three split shed pad;
Fig. 6 is the structural representation of spool in the utility model embodiment four; .
[embodiment]
The technological scheme of accompanying drawing to the utility model embodiment below in conjunction with the utility model embodiment is explained and illustrated, but following embodiment is only preferred embodiment of the present utility model, and not all.Based on the embodiment in mode of execution, those skilled in the art under the prerequisite not making creative work obtain other embodiment, all belong to protection domain of the present utility model.
Embodiment one:
With reference to figure 1, shown a kind of stop valve, comprises valve body 1 and spool, be provided with interior room 13 in valve body 1, in valve body 1, spool is set, the bottom valve port 11 of valve body 1, the sidewall of valve body 1 is provided with opening 12, valve port 11 connects the first adapter 5, opening 12 connects the second adapter 6, spool axially moves up and down with opening and closing valve port 11 in valve body 1, when valve port 11 closes by spool, first adapter 5 and the second adapter 6 cannot conductings, after valve port 11 is opened, and the first adapter 5 and the second adapter 6 conducting.Wherein, spool comprises point body formed valve core rod 2 and valve block 3, protruding boss 7 is provided with at the periphery of valve core rod 2 bottom, the periphery of boss 7 arranges outside thread 23, be provided with internal thread 14 in valve body 1 to coordinate with outside thread 23, valve core rod 2 bottom surface is provided with mounting groove 21, and the top of valve block 3 is provided with attachment post 31, attachment post 31 is rotatably connected in mounting groove 21, can rotate to make valve block 3 relative to valve core rod 2.When stop valve uses, rotating valve core bar 2, valve core rod 2 and valve body 1 screw-thread fit are rotated, valve core rod 2 is made to be with moving valve plate 3 to move towards valve port 11, after the bottom of valve block 3 and the inwall of valve body 1 offset and are closed by valve port 11, be rotated further the words of valve core rod 2, because valve core rod 2 and valve block 3 are rotatedly connected, and valve block 3 has been pressed between the inwall of valve body 1 and valve core rod 2 by top, now, the rotation of valve core rod 2 can not be with moving valve plate 3 to rotate, to reduce the friction between valve block 3 and valve body 1, reduce its wearing and tearing, extend the working life of stop valve.
The seal ring 33 that the valve block 3 adopted comprises the punch holder 32 of annular, the die holder 34 of annular and is pressed between punch holder 32 and die holder 34, the bottom of attachment post 31 is provided with projection 311, after projection 311 cross-under punch holder 32 and die holder 34, the bottom of riveting projection 311 is to compress the bottom surface of die holder 34.Wherein the diameter of die holder 34 is less than the diameter of seal ring 33, to ensure seal ring 33 energy excellent sealing valve port 11, the diameter of punch holder 32 is less than the diameter of boss 7, loads in valve body 1 to facilitate by spool, be soft seal between seal ring 33 and valve port 11, good sealing effect.In other embodiments of the present utility model, punch holder and attachment post can be integrated formed structures; Or be extend attachment post at the end face of punch holder, die holder is connected by screw punch holder, to be pressed between punch holder and die holder by seal ring.
Preferably, spacing certain distance between the end face of punch holder 32 and the bottom surface of valve core rod 2, namely attachment post 31 part stretches in mounting groove 21, avoids rubbing contact between punch holder 32 and valve core rod 2, and when spool capping valve port 11, cause punch holder 32 by valve core rod 2 rub drive situation occur.
The present embodiment is provided with rolling bearing 8 in mounting groove 21, and rolling bearing 8 comprises inner ring 83, outer ring 81 and the roller between inner ring 83 and outer ring 81 82, and attachment post 31 interference fit connects the inner ring 83 of rolling bearing 8.Being rotationally connected of valve block 3 and valve core rod 2 is realized by rolling bearing 8, valve core rod 2 is with moving valve plate 3 to decline, and after valve port 11 is closed by valve block 3, is rotated further in the process that valve core rod 2 moves down, valve core rod 2 can only rotate relative to attachment post 31, and moving valve plate 3 can not be with to rotate.
Wherein, mounting groove 21 is provided with step 24.Outer ring 81 and mounting groove 21 interference fit, load rolling bearing 8 interference fit in mounting groove 21, until the end face of outer ring 81 and step 24 offset.By interference fit, rolling bearing 8 is installed, does not need the fixed structure processing other, low cost of manufacture.
And, in the present embodiment, the different diameters of the diameter of mounting groove 21 and boss 7 is comparatively large, and namely the diameter of mounting groove 21 is much smaller than the diameter of boss 7, to reduce the diameter of attachment post 31 in mounting groove 21, thus reduce the weight of valve block 3, ensure that being rotationally connected of valve block 3 and valve core rod 2 is reliable.In other embodiments of the present utility model, can expand the diameter of mounting groove, the diameter of mounting groove, close to the diameter of boss, makes the diameter of rolling bearing be greater than the maximum diameter of valve block, so that rolling bearing loads in mounting groove by user.
Embodiment two:
A kind of stop valve, comprise valve body and be arranged on the spool in valve body, the bottom valve port of valve body, the sidewall of valve body is provided with opening, valve port connects the first adapter, opening connects the second adapter, spool axially moves up and down with opening and closing valve port in valve body, wherein, spool comprises point body formed valve core rod and a valve block, protruding boss is provided with at the periphery of valve core rod bottom, the periphery of boss arranges outside thread, be provided with internal thread in valve body to coordinate with outside thread, valve core rod bottom surface is provided with mounting groove, the top of valve block is provided with attachment post, attachment post is rotatably connected in mounting groove, can rotate relative to valve core rod to make valve block.Stop valve and the embodiment one of the present embodiment are similar, some structures repeat no more, with reference to figure 2, the difference of the present embodiment and embodiment one is: the bulge loop 25 being provided with outstanding rolling bearing 8 bottom surface at the notch place of mounting groove 21, rolling bearing 8 to be arranged in mounting groove 21, attachment post 31 and inner ring 83 interference fit, end face and the step 24 of outer ring 81 offset, by the axis direction riveting bending of bulge loop 25 towards mounting groove 21, the bulge loop 25 of riveting bending and the bottom surface of outer ring 81 offset with by spacing for rolling bearing 8 in mounting groove 21, rolling bearing 8 can reliably be located by the present embodiment.With reference to figure 3, in other embodiments of the present utility model, the diameter of mounting groove 21 is close to the diameter of boss 7, make the sidewall thickness of mounting groove 21 thinner, the bottom surface of mounting groove 21 sidewall is positioned at the below of rolling bearing 8 bottom surface, by the sidewall bottom of mounting groove 21 bend formed bending part 26, bending part 26 props up the bottom surface of outer ring 81 in rolling bearing 8, with by spacing for rolling bearing 8 in mounting groove 21.
Embodiment three:
A kind of stop valve, comprise valve body and be arranged on the spool in valve body, the bottom valve port of valve body, the sidewall of valve body is provided with opening, valve port connects the first adapter, and opening connects the second adapter, spool axially moves up and down with opening and closing valve port in valve body.Wherein, spool comprises point body formed valve core rod and a valve block, protruding boss is provided with at the periphery of valve core rod bottom, the periphery of boss arranges outside thread, be provided with internal thread in valve body to coordinate with outside thread, valve core rod bottom surface is provided with mounting groove, and the top of valve block is provided with attachment post, attachment post is rotatably connected in mounting groove, can rotate to make valve block relative to valve core rod.Structure and the embodiment one of the present embodiment stop valve are similar, with reference to figure 4 and Fig. 5, the difference of the present embodiment and embodiment one is: end face and the step 24 of outer ring 81 offset, and packing ring 4 is connected with bottom valve core rod 2, packing ring 4 offsets with the bottom surface of outer ring 81, with by spacing for rolling bearing 8 in mounting groove 21.In the present embodiment, packing ring 4 can be open washer 41, the bottom surface of valve core rod 2 is provided with the lug boss 27 of annular, lug boss 27 is arranged along the edge of valve core rod 2, utilize the elastic deformability of open washer 41, make the inwall interference fit of open washer 41 and lug boss 27, thus rolling bearing 8 is limited in mounting groove 21.Preferably, the bottom surface of rolling bearing 8 protrudes from mounting groove 21, and the bottom surface of rolling bearing 8 and packing ring 4 are offseted, to limit the degrees of freedom that rolling bearing 8 moves axially along mounting groove 21; In addition, packing ring 4 also can be pad of remaining silent, and during construction opening packing ring 41, first can install rolling bearing 8 on attachment post 31, then be contained on attachment post 31 by open washer 41; And pad of remaining silent is when installing, needs first to install on attachment post 31 pad of remaining silent, then rolling bearing 8 is arranged on attachment post 31.In other embodiments of the present utility model, packing ring is open washer, and directly and mounting groove interference fit, the outer ring of rolling bearing is pressed between step and packing ring open washer.
Embodiment four:
A kind of stop valve, comprise valve body and be arranged on the spool in valve body, the bottom valve port of valve body, the sidewall of valve body is provided with opening, valve port connects the first adapter, and opening connects the second adapter, spool axially moves up and down with opening and closing valve port in valve body.Wherein, spool comprises point body formed valve core rod and a valve block, protruding boss is provided with at the periphery of valve core rod bottom, the periphery of boss arranges outside thread, be provided with internal thread in valve body to coordinate with outside thread, valve core rod bottom surface is provided with mounting groove, and the top of valve block is provided with attachment post, attachment post is rotatably connected in mounting groove, can rotate to make valve block relative to valve core rod.Structure and the embodiment three of the present embodiment stop valve are similar, with reference to figure 6, the difference of the present embodiment and embodiment three is: valve core rod 2 bottom surface is provided with the baffle plate 22 of annular, packing ring 4 is arranged in baffle plate 22, baffle plate 22 towards the riveting bending of packing ring 4 direction to offset with the bottom surface of rolling bearing 8, thus rolling bearing 8 is reliably spacing in mounting groove 21.Preferably, baffle plate 22 is arranged along the edge of valve core rod 2 bottom surface, and the diameter of packing ring 4 is greater than the maximum diameter of valve block 3, carries out riveting processing, be fixed on valve core rod 2 by packing ring 4 to facilitate to baffle plate 22.The present embodiment middle washer can be open washer or remain silent packing ring.
The utility model is applied to and technical field of air conditioner refrigeration, especially relates to a kind of air-conditioner stop valve for refrigeration system.
By above-described embodiment, the purpose of this utility model is reached by fully effective.The personage being familiar with this technology should be understood that the content that the utility model includes but not limited to accompanying drawing and describes in embodiment above.Any amendment not departing from function and structure principle of the present utility model all will comprise within the scope of the appended claims.
Claims (10)
1. a stop valve, comprise valve body and spool, valve port is provided with in described valve body, described spool axially moves up and down with valve port described in opening and closing in valve body, it is characterized in that: described spool comprises point body formed valve core rod and a valve block, the periphery of described valve core rod bottom is provided with boss, described boss and valve body screw thread are connected, the bottom surface of described valve core rod is provided with mounting groove, described valve block is provided with attachment post, described attachment post is rotatably connected on mounting groove at least partly, can rotate to make valve core rod relative to valve block.
2. stop valve as claimed in claim 1, it is characterized in that: be provided with rolling bearing in described mounting groove, described rolling bearing comprises inner ring, outer ring and the roller between inner ring and outer ring, the inner ring interference fit of described attachment post and rolling bearing.
3. stop valve as claimed in claim 2, it is characterized in that: described mounting groove is provided with step, end face and the step of described outer ring offset.
4. stop valve as claimed in claim 2, is characterized in that: described outer ring and mounting groove interference fit.
5. stop valve as claimed in claim 2, it is characterized in that: the notch place of described mounting groove is provided with the bulge loop of outstanding rolling bearing bottom surface, described bulge loop towards the axis direction riveting bending of mounting groove, and with the bottom surface of outer ring offset with by spacing for rolling bearing in mounting groove.
6. stop valve as claimed in claim 2, it is characterized in that: be connected with packing ring bottom described valve core rod, the bottom surface of described packing ring and outer ring offsets, with by spacing for described rolling bearing in mounting groove.
7. stop valve as claimed in claim 6, is characterized in that: described valve core rod bottom surface is provided with the baffle plate of annular, and described packing ring is arranged in baffle plate, and described baffle plate towards the riveting bending of packing ring direction, and offsets with packing ring bottom surface.
8. stop valve as claimed in claim 6, is characterized in that: described packing ring is open washer, described open washer and mounting groove interference fit.
9. stop valve as claimed in claim 6, is characterized in that: described packing ring is open washer, and the bottom surface of described valve core rod is provided with the lug boss of annular, the inwall interference fit of described open washer and lug boss.
10. the stop valve as described in one of claim 1 to 9, is characterized in that: described valve block is provided with the seal ring for closed valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401577.3U CN204878754U (en) | 2015-06-10 | 2015-06-10 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401577.3U CN204878754U (en) | 2015-06-10 | 2015-06-10 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878754U true CN204878754U (en) | 2015-12-16 |
Family
ID=54823128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520401577.3U Active CN204878754U (en) | 2015-06-10 | 2015-06-10 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178621A (en) * | 2016-03-11 | 2017-09-19 | 浙江三花智能控制股份有限公司 | A kind of refrigeration system stop valve and its valve rod |
-
2015
- 2015-06-10 CN CN201520401577.3U patent/CN204878754U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178621A (en) * | 2016-03-11 | 2017-09-19 | 浙江三花智能控制股份有限公司 | A kind of refrigeration system stop valve and its valve rod |
| CN107178621B (en) * | 2016-03-11 | 2020-03-10 | 浙江三花智能控制股份有限公司 | Stop valve for refrigerating system and valve rod thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |