CN206478233U - A kind of water servomechanism - Google Patents
A kind of water servomechanism Download PDFInfo
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- CN206478233U CN206478233U CN201621239947.9U CN201621239947U CN206478233U CN 206478233 U CN206478233 U CN 206478233U CN 201621239947 U CN201621239947 U CN 201621239947U CN 206478233 U CN206478233 U CN 206478233U
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- valve element
- delivery port
- valve body
- water
- inner ring
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Abstract
The utility model is related to a kind of water servomechanism, including valve body and position valve element in the inner, and the valve body is provided with water inlet and the delivery port positioned at bottom positioned at side wall；Valve element described in servomotor drive connection；It is characterized in that the bottom of the valve body has the ring wall around the delivery port and forms the sleeve being set in outside valve element, the inner chamber of the valve body is divided into the outer ring cavity being connected with the water inlet and the inner ring cavity being connected with the delivery port by the sleeve；The open interior intracavitary in the valve body in the upper end of the sleeve；The bottom of the valve element is provided with the seal for being used for closing the delivery port.Compared with prior art, water servomechanism provided by the utility model, it is to avoid current directly impact valve element, solve the adjusting spool jitter phenomenon caused by water impact, in the case that pressure oscillation is larger, constant delivery port opening still is able to, so that constant output flow.
Description
Technical field
The utility model is related to a kind of water servomechanism.
Background technology
Water servomechanism is commonly used to water heater, and it can be according to the hot water temperature that goes out of setting, hydraulic pressure, air pressure and water inlet
The change of temperature, automatically adjusts flow of inlet water, so as to automatically adjust and constant water flow, really realizes water, gas dual regulation,
Ensure the precise constant of leaving water temperature；Solve suddenly cold and hot phenomenon during water outlet during solving；The four seasons are all up water outlet
Temperature is freely adjusted on a large scale from low temperature to high temperature.
CN200820167152.0 discloses one kind《Quantity servo device on electric heater》, include valve body and
Water inlet pipe and outlet pipe are provided with valve element, valve body, water flow meter is provided with water inlet pipe or outlet pipe and supporting is gone out
Water flow sensor；Leaving water temperature sensors, also, one end and the step of valve element are provided with the hot water outlet pipe of electric heater
Stepper motor transmission is connected, and valve element is installed in the way of it can be moved along the axial reciprocating of body cavity in valve body, outside valve element
Surface, which has, is provided with interior shoulder in taper surface or cone tank, valve body, the gap between the outer surface of the valve element and the interior shoulder of valve body
As water stream channel.The utility model ensure that leaving water temperature reaches the temperature of setting, in the case where hydraulic pressure changes,
Adjust automatically aperture size, reduces the fluctuating range of leaving water temperature.
But, the quantity servo device current directly impact valve element, and when water pressure fluctuations are big, being easily caused causes valve element to be trembled
It is dynamic, and then cause orifice openings to change, water flow variation is ultimately resulted in, stability of flow is influenceed.
The content of the invention
Technical problem to be solved in the utility model be for prior art present situation provide a kind of service life length and
Good operating stability water servomechanism in the case of big pressure oscillation.
The utility model solve the technical scheme that is used of above-mentioned technical problem for：The water servomechanism, including valve body and
The valve element of position in the inner, the valve body is provided with water inlet and the delivery port positioned at bottom positioned at side wall；Servomotor drives
Connect the valve element；
It is characterized in that：
The bottom of the valve body has the ring wall around the delivery port and forms the sleeve being set in outside valve element, described
The inner chamber of the valve body is divided into the outer ring cavity being connected with the water inlet and is connected with the delivery port by sleeve
Inner ring cavity；The open interior intracavitary in the valve body in the upper end of the sleeve；
The bottom of the valve element is provided with the seal for being used for closing the delivery port.
Preferably, collar flange can be provided with the inwall of the valve body, the seal coordinates with the flange to close
Close the delivery port.
The seal can include inner ring pedestal, outer shroud deck and sealing ring；The outer shroud deck and the sealing ring
It is set in outside the inner ring pedestal, and the sealing ring is located between the inner ring pedestal and the outer shroud deck；
The inner ring pedestal is set on the valve element；
Contradicted by the sealing ring and the delivery port is closed on the flange.Directly connect this configuration avoids sealing ring
Valve element is connect, so as to avoid valve core rotation to the rotary squeezing power produced by sealing ring, it is ensured that the service life of sealing ring.
It is preferred that the cross section of the inner ring pedestal is the "convex" shaped with intermediate throughholes；Accordingly, the sealing ring
Cross section is the middle concave with through hole.
Further to avoid inner ring pedestal to the rotary squeezing power of sealing ring, the side of the side convex portion of the inner ring pedestal with
There can be gap between the sealing ring.Torsion extruding force so from valve element is just only extruded when being applied on seal
Power, without twisting resistance, further to extend the service life of sealing ring.
Preferably, the cross section of the outer shroud deck is the middle concave with through hole.The structure causes sealing
The positioning of circle is more firm.
, can be on the valve element in order to prevent the destruction to flange and valve body caused by the inordinate rotation of servomotor
Provided with defining flange, pad is set on the valve element and abutted on the seal；
Elastic component is provided between the defining flange and the pad.The revolving force of valve element is applied to pad by elastic component
On, skidding is produced, prevents revolving force to be delivered on sealing ring, further extends the service life of sealing ring；Meanwhile,
Utilize the cushioning effect of spring, it is to avoid when valve is shut because of valve element moving downward and cause the problem of valve body is by bursting excessively.
For the positioning of further robust seal part, neck can be provided with the valve element, the neck, which is embedded with, to be used for
The fixture block of the spacing seal.
The pad is preferably metallic gasket or ceramic gasket.
Compared with prior art, water servomechanism provided by the utility model, it is to avoid current directly impact valve element, is solved
The adjusting spool jitter phenomenon determined caused by water impact, in the case that pressure oscillation is larger, still be able to it is constant go out
Mouth of a river opening, so that constant output flow.
Brief description of the drawings
Fig. 1 is the longitudinal sectional view of the utility model embodiment；
Fig. 2 is the schematic perspective view that the utility model embodiment removes part valve body；
Fig. 3 is the partial enlarged drawing of part A in Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1 to Figure 3, the water servomechanism includes：
Valve body 1, is the housing of whole taps, which is provided with water inlet 11 and delivery port 12, and water inlet 11 is arranged on valve
On the side wall of body, delivery port 12 is the lower port of valve body.The inwall of valve body 1 be provided with collar flange 13, for seal 5
Coordinate and close delivery port 12.
Sleeve 4, is set in outside valve element 2 and in valve body 1, and the ring wall around water inlet 11 is set, and its lower ora terminalis is tightly connected
On flange 13, the open interior intracavitary in valve body in its upper end and higher than water inlet 11；Have between the inwall of sleeve 4 and valve body 1
Gap, outer ring cavity 43 and inner ring cavity 42 are divided into by the inner chamber of valve body.Correspond to the occlusion part 41 of water inlet 11 on sleeve 4
Upper/lower terminal externally protrude out in the perisporium of water inlet 11；I.e. occlusion part 41 blocks whole water inlet 11, and current enter from water inlet
Afterwards, it in the presence of sleeve 4, can only be introduced into outer ring cavity 43, then enter inner ring cavity from the upper port overflow of sleeve 4
In 42.Avoid current and directly impact valve element, so that the shake of valve element is avoided, in the case that pressure oscillation is larger,
Also being capable of effective constant output flow.
Valve element 2, is arranged in valve body 1, connects servomotor 3, drives valve element 2 to rotate by the rotation of servomotor, band
Seal 5 on movable valve plug is moved up and down, so as to open or close delivery port 12；Limit convex is interval with the perisporium of valve element 2
Fixture block 23 is embedded with edge 21 and neck 22, neck 22.
Seal 5, is set on valve element 2, and delivery port 12 is closed for coordinating with flange 13；Including inner ring pedestal 51, outside
Ring deck 52 and sealing ring 53；Wherein inner ring pedestal 51 is set on valve element 2, and the cross section of inner ring pedestal 51 is logical with centre
The "convex" shaped in hole；The cross section of sealing ring 53 and outer shroud deck 52 is the middle concave with through hole；Sealing ring 53
Be sequentially sleeved at from inside to outside on inner ring pedestal 51 with outer shroud deck 52, and the side convex portion 51a of inner ring pedestal 51 side with
There is gap 54 between sealing ring 53.Sealing ring 53 is contradicted closes the delivery port 12 on the flange 13.
The lower surface of inner ring pedestal 51 is contradicted on fixture block 23, and the upper surface of inner ring pedestal 51 and outer shroud deck 52 is contradicted
On pad 6.
Pad 6 is set on valve element 2, is prepared using ceramic material.Pad can also be prepared using metal material, for example not
Become rusty steel, or the suitable material of other frictional force.
Elastic component 7, the present embodiment is spring, is set on valve element 2, and its two ends is contradicted in pad 6 and defining flange respectively
On 21, extruding force to flange 13 is twisted for buffering valve element transition.
Pad 6 and elastic component 7 coordinate for reducing frictional force during valve core rotation between seal 5, so as to avoid valve
To the rotary squeezing power of sealing ring 53 when core is rotated, sealing ring is set to be solely subjected to pressure, so as to ensure that the service life of sealing ring.
During work, servomotor driving valve element is rotated forward, and seal leaves flange, and delivery port is opened；Current are via water inlet
Into outer ring cavity, then enter inner ring cavity from the upper edge overflow of sleeve, the gap between seal and flange from
Delivery port flows out；Water yield size is adjusted by servomotor according to control signal.
When being stopped, servomotor driving valve element reversion, crush seal circle is contradicted on flange, closes delivery port.
Claims (9)
1. a kind of water servomechanism, including valve body (1) and position valve element (2) in the inner, the valve body (1), which is provided with, is located at side wall
Water inlet (11) and the delivery port (12) positioned at bottom；Valve element (2) described in servomotor (3) drive connection；
It is characterized in that：
The bottom of the valve body (1) has the ring wall around the delivery port (12) and forms the set being set in outside valve element (2)
The inner chamber of the valve body (1) is divided into the outer ring cavity being connected with the water inlet (11) by cylinder (4), the sleeve (4)
(43) the inner ring cavity (42) and with the delivery port (12) being connected；The upper end opening of the sleeve (4) is in the valve body (1)
Interior intracavitary；
The bottom of the valve element (2) is provided with the seal (5) for being used for closing the delivery port (12).
2. water servomechanism according to claim 1, it is characterised in that the inwall of the valve body (1) is provided with collar flange
(13), the seal (5) coordinates with the flange (13) closes the delivery port (12).
3. water servomechanism according to claim 2, it is characterised in that the seal (5) include inner ring pedestal (51),
Outer shroud deck (52) and sealing ring (53)；The outer shroud deck (52) and the sealing ring (53) are set in the inner ring pedestal
(51) outside, and the sealing ring (53) be located between the inner ring pedestal (51) and the outer shroud deck (52)；
The inner ring pedestal (51) is set on the valve element (2)；
Contradicted by the sealing ring (53) and the delivery port (12) is closed on the flange (13).
4. water servomechanism according to claim 3, it is characterised in that the cross section of the inner ring pedestal (51) be with
The "convex" shaped of intermediate throughholes；Accordingly, the cross section of the sealing ring (53) is the middle concave with through hole.
5. water servomechanism according to claim 4, it is characterised in that the side of the side convex portion of the inner ring pedestal (51)
There are gap (54) between the sealing ring (53).
6. water servomechanism according to claim 5, it is characterised in that the cross section of the outer shroud deck (52) is centre
Concave with through hole.
7. the water servomechanism according to claim 1 to 6 any claim, it is characterised in that set on the valve element (2)
Limited location flange (21), pad (6) is set on the valve element (2) and abutted on the seal (5)；
Elastic component (7) is provided between the defining flange (21) and the pad (6).
8. water servomechanism according to claim 7, it is characterised in that the valve element (2) is provided with neck (22), described
Neck (22) is embedded with the fixture block (23) for the spacing seal (5).
9. water servomechanism according to claim 8, it is characterised in that the pad (6) is metallic gasket or ceramic blanket
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239947.9U CN206478233U (en) | 2016-11-18 | 2016-11-18 | A kind of water servomechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239947.9U CN206478233U (en) | 2016-11-18 | 2016-11-18 | A kind of water servomechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478233U true CN206478233U (en) | 2017-09-08 |
Family
ID=59756637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621239947.9U Active CN206478233U (en) | 2016-11-18 | 2016-11-18 | A kind of water servomechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206478233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678373A (en) * | 2016-11-18 | 2017-05-17 | 宁波方太厨具有限公司 | Water quantity server |
-
2016
- 2016-11-18 CN CN201621239947.9U patent/CN206478233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678373A (en) * | 2016-11-18 | 2017-05-17 | 宁波方太厨具有限公司 | Water quantity server |
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