CN204922216U - Scale control case - Google Patents
Scale control case Download PDFInfo
- Publication number
- CN204922216U CN204922216U CN201520638973.8U CN201520638973U CN204922216U CN 204922216 U CN204922216 U CN 204922216U CN 201520638973 U CN201520638973 U CN 201520638973U CN 204922216 U CN204922216 U CN 204922216U
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- CN
- China
- Prior art keywords
- valve core
- dust
- proof cover
- core rod
- housing
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- Expired - Fee Related
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Abstract
The utility model provides a scale control case belongs to mechanical technical field. It has solved current scale control case scale control dynamics undersize, leads to the problem that case practical life is short excessively. This scale control case is including the casing and the valve plug stem that have the cavity, valve plug stem wears to establish in the cavity of casing and can be along casing axial displacement, valve plug stem one end is stretched out the casing and is connected with valve core head, be equipped with the spring that makes valve core head have past casing direction removal trend all the time between valve plug stem and the shells inner wall, its characterized in that, the still sealed dust cover that has linked firmly of opening part that valve plug stem wore out is offered up a sacrifice to the casing, the dust cover adopts elastic material to make, valve plug stem wears out the dust cover and is connected with above -mentioned valve core head, dust cover and valve plug stem's sealed the linking firmly of lateral wall. The waterproof dirt of realization that this scale control case is better increases the practical life of case.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of antiscale spool.
Background technique
Increasingly mature along with thermostatic valve technology, antiscale valve is widely used in multiple fields such as family, hotel, bathing pool, but the water inlet of this constant temperature valve core easily generates incrustation scale, causes constant-temperature water valve to regulate dumb or stuck.
At present, the mode that thermostatic valve is taked is provided with scale-deposit-preventing groove on the piston of constant temperature valve core, outside displacement bar, be arranged with scale-deposit-preventing rubbery human body simultaneously, incrustation scale is avoided to produce on spool, but thermostatic valve is accurate device, piston, incrustation scale between periphery and other each parts can affect the normal work of displacement bar.
For the defect of above-mentioned existence, people have developed various antiscale spool:
As China applies for a patent (application number: 201020640276.3), disclose a kind of scale-prevention thermostatic valve core, it comprises a valve head, be provided with temperature adjustment swing arm in valve head, relief spring, hexagonal displacement assisted, Returnning spring, piston and the thermosensitive element supported with piston, piston is provided with water proof rubber ring recess, be provided with scale-deposit-preventing groove inside piston, and outside displacement bar, be arranged with a scale-deposit-preventing rubbery human body.
Although above-mentioned scale-prevention thermostatic valve core solves various defect in certain degree, but still there is following defect: 1, this scale-deposit-preventing constant temperature valve is only provided with scale-deposit-preventing groove inside piston, to make on the outside of spool, without any scale-deposit-preventing measure, to cause scale-deposit-preventing dynamics less; 2, be outside displacement bar, be arranged with a scale-deposit-preventing rubbery human body at scale-deposit-preventing constant temperature valve, at this position scale-deposit-preventing DeGrain, and on Returnning spring, there is no any scale-deposit-preventing measure, have influence on the adjustment of thermostatic valve.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, and propose a kind of antiscale spool, technical problem to be solved in the utility model is: how on spool, better to realize scale-deposit-preventing, increases the working life of spool.
The purpose of this utility model realizes by following technical proposal: a kind of antiscale spool, comprise the housing and valve core rod with chamber, can move axially along housing in the chamber that described valve core rod is located in housing, described valve core rod one end is stretched out housing and is connected with valve core head, the spring making valve core head have past housing direction mobile trend is all the time provided with between described valve core rod and inner walls, it is characterized in that, the opening that described housing passes for valve core rod also seals and is fixed with dust-proof cover, described dust-proof cover adopts elastic material to make, described valve core rod passes dust-proof cover and is connected with above-mentioned valve core head, the outer side wall of described dust-proof cover and valve core rod seals and is connected.
When in the chamber that valve core rod is located in housing and when moving axially along housing, the spring making valve core head have past housing direction mobile trend is all the time provided with between valve core rod and inner walls, and the opening that housing passes for valve core rod also seals and is fixed with dust-proof cover, and valve core rod passes dust-proof cover is connected with above-mentioned valve core head, the outer side wall of dust-proof cover and valve core rod seals and is connected simultaneously, because dust-proof cover adopts elastic material to make, so when valve core rod moves, can deformation be there is in dust-proof cover, thus the protection that can realize when not affecting valve core rod motion incrustation scale on valve core rod, and structure is simple, thus add the working life of spool.
In above-mentioned a kind of antiscale spool, the outer side wall of described valve core rod has annular groove, the opening that above-mentioned housing passes for valve core rod offers mounting groove, above-mentioned dust-proof cover one end embeds in mounting groove, and the bottom land of mounting groove and dust-proof cover seal and are connected, in above-mentioned dust-proof cover the other end embedded rings connected in star, and the bottom land of annular groove and dust-proof cover seal and are connected.Annular groove on valve core rod and the mounting groove of housing can strengthen the characteristic of dust-proof cover scale-deposit-preventing, thus add the physical life of spool.
In above-mentioned a kind of antiscale spool, described dust-proof cover comprises joint and guide portion, above-mentioned joint is hollow cylindrical, above-mentioned joint one end is connected with one end of guide portion, the above-mentioned joint the other end has the lug boss one in the form of a ring that caves inward, and lug boss one is embedded in mounting groove to seal with mounting groove bottom land and is connected, above-mentioned guide portion outer surface is round table-like, and the guide portion the other end has the lug boss two in the form of a ring that caves inward, above-mentioned lug boss two is embedded in annular groove to seal with annular groove bottom land and is connected, and above-mentioned joint and guide portion are one-body molded.Dust-proof cover adopts said structure can have better guidance quality, ensure that and dust-proofly when valve core rod moves is covered with better stretchability, add the working life of spool.
In above-mentioned a kind of antiscale spool, between described case inside face and the outer side surface of valve core rod, be connected seal ring.By the seal action of seal ring, secondary seal is carried out again in the basis of dust-proof cover, thus can more effective scale-deposit-preventing.
In above-mentioned a kind of antiscale spool, described seal ring, dust-proof cover all adopt ethylene propylene diene monomer (EPDM) material to make.Adopt above-mentioned material to ensure that dust-proof cover and seal ring have good elasticity, strengthen the ageing resistance of dust-proof cover and seal ring simultaneously.
Compared with prior art, this antiscale spool has the following advantages:
1, at the middle part annular groove of valve core rod, the mounting groove of shell one end, make the connection of seal closure and valve core rod and housing more fastening, thus the effect playing good scale-deposit-preventing can be ensured.
2, the cover body of seal closure shape and make seal closure material used, further can ensure to have good scale-deposit-preventing effect, simultaneously structure is simple, can increase its working life.
Accompanying drawing explanation
Fig. 1 is the sectional view of this antiscale spool.
In figure, 1, housing; 11, mounting groove; 2, valve core rod; 21, annular groove; 3, valve core head; 4, spring; 5, dust-proof cover; 51, joint; 511, lug boss one; 52, guide portion; 521, lug boss two; 6, seal ring.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this antiscale spool comprises the housing 1 and valve core rod 2 with chamber.
Further, can move axially along housing 1 in the chamber that valve core rod 2 is located in housing 1, valve core rod 2 one end is stretched out housing 1 and is connected with valve core head 3, the spring 4 making valve core head 3 have past housing 1 direction mobile trend is all the time provided with between valve core rod 2 and housing 1 inwall, it is characterized in that, the opening that housing 1 passes for valve core rod 2 offers mounting groove 11, dust-proof cover 5 adopts elastic material to make, dust-proof cover 5 one end embeds in mounting groove 11, and the bottom land of mounting groove 11 and dust-proof cover 5 seal and are connected, be connected by seal ring 6 between housing 1 inner side surface and the outer side surface of valve core rod 2, valve core rod 2 passes dust-proof cover 5 and is connected with valve core head 3, the outer side wall of valve core rod 2 has annular groove 21, in dust-proof cover 5 the other end embedded rings connected in star 21, and the bottom land of annular groove 21 and dust-proof cover 5 seal and are connected, dust-proof cover 5 stretches along with the movement of valve core rod 2, adopt elastic material to make due to dust-proof cover 5 and there is good tensile property, thus do not affecting the ability that ensure that the scale-deposit-preventing of dust-proof cover 5 while valve core rod 2 moves, seal ring 6 further enhances scale-deposit-preventing ability, the working life of spool is extended.
Specifically, dust-proof cover 5 comprises joint 51 and guide portion 52, joint 51 is in hollow cylindrical, joint 51 one end is connected with one end of guide portion 52, joint 51 the other end has the lug boss 1 in the form of a ring that caves inward, and lug boss 1 is embedded in mounting groove 11 to seal with mounting groove 11 bottom land and is connected, guide portion 52 outer surface is round table-like, and guide portion 52 the other end has the lug boss 2 521 in the form of a ring that caves inward, lug boss 2 521 is embedded in annular groove 21 to seal with annular groove 21 bottom land and is connected, joint 51 and guide portion 52 are one-body molded, seal ring 6 simultaneously, dust-proof cover 5 all adopts ethylene propylene diene monomer (EPDM) material to make, dust-proof cover 5 adopts said structure can have better guidance quality, ensure that dust-proof cover 5 has better stretchability when valve core rod 2 moves, dust-proof cover 5 adopts ethylene propylene diene monomer (EPDM) material ensure that, and dust-proof cover 5 and seal ring 6 have good elasticity, strengthen the ageing resistance of dust-proof cover 5 and seal ring 6 simultaneously.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (5)
1. an antiscale spool, comprise the housing (1) and valve core rod (2) with chamber, can move axially along housing (1) in the chamber that described valve core rod (2) is located in housing (1), described valve core rod (2) one end is stretched out housing (1) and is connected with valve core head (3), the spring (4) making valve core head (3) have past housing (1) direction mobile trend is all the time provided with between described valve core rod (2) and housing (1) inwall, it is characterized in that, the upper opening supplying valve core rod (2) to pass of described housing (1) also seals and is fixed with dust-proof cover (5), described dust-proof cover (5) adopts elastic material to make, described valve core rod (2) passes dust-proof cover (5) and is connected with above-mentioned valve core head (3), described dust-proof cover (5) seals with the outer side wall of valve core rod (2) and is connected.
2. antiscale spool according to claim 1, it is characterized in that, the outer side wall of described valve core rod (2) has annular groove (21), the opening that above-mentioned housing (1) passes for valve core rod (2) offers mounting groove (11), above-mentioned dust-proof cover (5) one end embeds in mounting groove (11), and the bottom land of mounting groove (11) and dust-proof cover (5) seal and are connected, in above-mentioned dust-proof cover (5) the other end embedded rings connected in star (21), and the bottom land of annular groove (21) and dust-proof cover (5) seal and are connected.
3. antiscale spool according to claim 2, it is characterized in that, described dust-proof cover (5) comprises joint (51) and guide portion (52), above-mentioned joint (51) is in hollow cylindrical, above-mentioned joint (51) one end is connected with one end of guide portion (52), above-mentioned joint (51) the other end has the lug boss one (511) in the form of a ring that caves inward, and lug boss one (511) is embedded in mounting groove (11) to seal with mounting groove (11) bottom land and is connected, above-mentioned guide portion (52) outer surface is round table-like, and guide portion (52) the other end has the lug boss two (521) in the form of a ring that caves inward, above-mentioned lug boss two (521) is embedded in annular groove (21) to seal with annular groove (21) bottom land and is connected, above-mentioned joint (51) and guide portion (52) are one-body molded.
4. the antiscale spool according to claim 1 or 2 or 3, is characterized in that, is connected seal ring (6) between described housing (1) inner side surface and the outer side surface of valve core rod (2).
5. antiscale spool according to claim 4, is characterized in that, described seal ring (6), dust-proof cover (5) all adopt ethylene propylene diene monomer (EPDM) material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638973.8U CN204922216U (en) | 2015-08-22 | 2015-08-22 | Scale control case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638973.8U CN204922216U (en) | 2015-08-22 | 2015-08-22 | Scale control case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922216U true CN204922216U (en) | 2015-12-30 |
Family
ID=54971342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520638973.8U Expired - Fee Related CN204922216U (en) | 2015-08-22 | 2015-08-22 | Scale control case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021008468A1 (en) * | 2019-07-12 | 2021-01-21 | 浙江达柏林阀门有限公司 | Anti-scaling spool |
-
2015
- 2015-08-22 CN CN201520638973.8U patent/CN204922216U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021008468A1 (en) * | 2019-07-12 | 2021-01-21 | 浙江达柏林阀门有限公司 | Anti-scaling spool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180822 |