CN217153105U - Three-way check valve - Google Patents
Three-way check valve Download PDFInfo
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- CN217153105U CN217153105U CN202220013165.2U CN202220013165U CN217153105U CN 217153105 U CN217153105 U CN 217153105U CN 202220013165 U CN202220013165 U CN 202220013165U CN 217153105 U CN217153105 U CN 217153105U
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- valve
- interface
- way check
- seat body
- check valve
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Abstract
A three-way check valve comprises a valve body, a valve core, an elastic piece and a seat body, wherein the valve body is provided with a first connector, a second connector and a third connector which are communicated with each other; the seat body is fixedly arranged in the valve body and is provided with a through hole; the valve core can movably penetrate through the through hole and can open the first connector and block the second connector under the action of water pressure; the elastic piece is propped between the valve core and the seat body to drive the valve core to block the first interface and open the second interface. The utility model discloses a case realizes preventing that two way water inlets from streaming, reduce cost, and the second interface is normally open state, can effectively reduce flow loss when it intakes.
Description
Technical Field
The utility model relates to a check valve field, especially a three-way check valve.
Background
The existing double-inlet three-way valve is provided with a non-return function structure and generally comprises a conventional three-way valve and two one-way valves. As shown in fig. 7, the three-way valve comprises three ports, two one-way valves are respectively arranged in the ports on the left side and the right side, when the waterway enters water from the left side, the water pressure pushes the one-way valve on the left side open, and the valve on the right side is closed; when the waterway feeds water from the right side, the water pressure pushes the right one-way valve open, and the left valve is closed. The structure of this kind of three way valve area two single valves can avoid controlling the phenomenon of water inlet water route intercommunication, guarantees that rivers only flow from the below.
The three-way valve with the structure has the following problems:
1. because both check valves are normally closed, the water entering the waterway must have enough water pressure to push the check valves open, so that a part of pressure loss exists.
2. The two check valves are high in cost and not beneficial to market competitiveness of products.
3. The one-way valve is positioned in the pipeline, the sectional area of water flow passing through the one-way valve is greatly reduced, and the flow loss is large.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at overcomes current three-way check valve with high costs and the big defect of flow damage, provides a three-way check valve, can reduce cost and reduce flow loss.
The utility model adopts the following technical scheme:
the utility model provides a three-way check valve, includes the valve body, and this valve body is equipped with first interface, second interface and the third interface that communicates each other, its characterized in that: the valve core, the elastic piece and the seat body are also included; the seat body is fixedly arranged in the valve body and is provided with a through hole; the valve core can movably penetrate through the through hole and can open the first connector and block the second connector under the action of water pressure; the elastic piece is propped between the valve core and the seat body to drive the valve core to block the first interface and open the second interface.
Preferably, the valve body is provided with a main body and a valve cover, the main body is provided with a first interface and a third interface, and the valve cover and the main body are detachably and fixedly connected and are provided with the second interface; the seat body is positioned in the main body.
Preferably, a cavity is arranged in the main body, and the cavity is communicated with the first interface and the third interface; the seat body is positioned in the cavity, and one end of the seat body is abutted against the inner wall of the cavity; one end of the valve cover is inserted into the cavity and abuts against the other end of the seat body, and the second interface is communicated with the cavity.
Preferably, the periphery of the main body is provided with a retaining ring, the valve cover is correspondingly provided with a buckling groove, and the valve cover is buckled outside the retaining ring through the buckling groove to realize fixation.
Preferably, the retaining ring is provided with a notch, the valve cover is correspondingly provided with a fastener, the fastener is provided with the fastening groove, and the fastening groove is fastened on or separated from the retaining ring by screwing in or screwing out the fastener from the notch.
Preferably, the valve cover is provided with a pressing piece, the pressing piece is located on the periphery of the second interface, and is inserted into the cavity and abutted against the corresponding end of the seat body.
Preferably, the valve core is provided with a rod body and two plugs, the valve core is arranged in the through hole in a penetrating manner, and the two plugs are fixed at two ends of the rod body; the elastic piece is sleeved outside the rod body and is propped between the plug and the seat body.
Preferably, the seat body is provided with a fixing part and an installation part, and the fixing part is tightly matched with the valve body; the mounting part is provided with the through hole and a mounting groove, and the mounting groove is positioned on the periphery of the through hole; the end part of the elastic piece is embedded in the mounting groove.
Preferably, the base body is further provided with a plurality of guide ribs, and the guide ribs are connected between the fixing portion and the mounting portion and are in sliding fit with the valve core.
Preferably, the first port and the second port are located on the same axis, and the valve core moves along the axis
From the above description of the present invention, compared with the prior art, the present invention has the following advantages:
1. the utility model discloses three-way check valve sets up case, elastic component and pedestal on the valve body, and case movably wears to locate the through-hole and can open first interface and shutoff second interface under the water pressure effect, and the elastic component opens and pushes up in order to order about the first interface of case shutoff and open the second interface between case and pedestal, adopts a case to realize preventing two way water inlet series flows, reduce cost, and the second interface is normally open state, can effectively reduce flow loss when it intakes.
2. The utility model discloses three-way check valve, valve body are equipped with main part and valve gap, are equipped with the cavity in the main part with installation case and pedestal for its flow sectional area can not reduce after the case removes and opens first interface, reduces flow loss.
3. The utility model discloses three-way check valve, pedestal are equipped with fixed part and installation department, are the tight fit through fixed part and valve body, and the valve gap still is equipped with and compresses tightly the piece in order to insert the cavity and support and lean on in the installation department, ensures that case and pedestal can not drop under water impact, improves the reliability of case.
4. The utility model discloses three-way check valve, the catching groove through the valve gap is detained and is realized dismantling fixedly outside the buckle of main part, and is equipped with the breach on the buckle, makes the catching groove detain in or break away from the buckle through the fastener from breach screw in or screw out and realize dismouting, convenient operation.
Drawings
FIG. 1 is a view of the structure of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of the valve cartridge;
FIG. 4 is a view of the structure of the seat body;
fig. 5 is a cross-sectional view of the present invention (the first water inlet is closed, the second water inlet is open);
fig. 6 is a cross-sectional view of the present invention (the first water inlet is open and the second water inlet is closed);
FIG. 7 is a cross-sectional view of a prior art construction;
wherein:
10. the valve body, 11, the main part, 12, the valve gap, 12a, the compressing part, 13, first interface, 14, the second interface, 15, the third interface, 16, the cavity, 17, the buckle, 17a, the breach, 17b, fender portion, 18, fastener, 19, catching groove, 20, the case, 21, the body of rod, 22, the end cap, 23, the sealing washer, 30, the elastic component, 40, the pedestal, 41, the fixed part, 42, the installation department, 43, the through-hole, 44, the direction muscle, 45, the mounting groove.
Detailed Description
The present invention will be further described with reference to the following detailed description.
The terms "first", "second", and the like in the present invention are used for convenience of description only to distinguish different constituent elements having the same name, and do not indicate a sequential or primary-secondary relationship.
In the description of the present invention, the directions or positional relationships indicated by "up", "down", "left", "right", "front", and "rear" are used as the directions or positional relationships indicated by the drawings, and are only for convenience of description of the present invention, and it is not intended to indicate or imply that the device indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the scope of the present invention.
Referring to fig. 1 to 6, a three-way check valve includes a valve body 10, a valve core 20, an elastic member 30, a seat body 40, and the like. The valve body 10 is provided with a first port 13, a second port 14, and a third port 15 that communicate with each other. The valve body 10 may be an integral structure or a split structure, for example, the valve body 10 is provided with a main body 11 and a valve cover 12, the main body 11 may be provided with a first connector 13 and a third connector 15, and the valve cover 12 and the main body 11 are detachably and fixedly connected and provided with a second connector 14.
Further, a cavity 16 is formed in the main body 11, the cavity 16 is communicated with the first port 13 and the third port 15, and an included angle may be formed between the first port 13 and the third port 15. The valve cap 12 is inserted into the cavity 16 at one end and the second port 14 is communicated with the cavity 16.
The detachable fixed connection between the valve cover 12 and the main body 11 can be realized by screw thread fit or snap fit, for example, the snap fit is used, a retaining ring 17 is arranged on the periphery of the main body 11, a catching groove 19 is correspondingly arranged on the valve cover 12, and the fastening is realized by buckling the catching groove 19 outside the retaining ring 17. In practical applications, a notch 17a may be formed on the retaining ring 17, a fastener 18 may be correspondingly formed on the valve cover 12, and a fastening slot 19 may be formed on the fastener 18, so that the fastening slot 19 is fastened to or separated from the retaining ring 17 by screwing or unscrewing the fastener 18 from the notch 17 a. One end of the notch 17a can be provided with a stop portion 17b for preventing the fastener 18 from separating from the buckle 17, and the other end of the notch 17a is used for allowing the fastener 18 to screw in or screw out.
The seat body 40 is fixedly disposed in the valve body 10 and has a through hole 43, and the valve core 20 movably penetrates through the through hole 43 and can open the first port 13 and block the second port 14 under the action of water pressure. The seat 40 can be located in the cavity 16 of the main body 11 and one end thereof abuts against the inner wall of the cavity 16; one end of the valve cap 12 inserted into the cavity 16 can abut against the other end of the seat body 40, so that the seat body 40 cannot fall off under the impact of water pressure.
Further, the base 40 is provided with a fixing portion 41 and a mounting portion 42, the fixing portion 41 is tightly fitted with the cavity 16 of the body 11, and the mounting portion 42 is provided with the through hole 43. The valve cap 12 may be provided with a pressing element 12a, the pressing element 12a is located at the periphery of the second port 14, the pressing element 12a is inserted into the cavity 16 and abuts against the other end of the seat body 40, that is, the corresponding end of the mounting portion 42, and a sealing ring 23 is further sleeved on the periphery of the pressing element 12a to be in sealing fit with the inner wall of the cavity 16.
The valve core 20 has a rod 21 and two plugs 22, the valve core 20 passes through the through hole 43, the two plugs 22 are fixed at two ends of the rod 21, one plug 22 is opposite to the first connector 13 and is sleeved with a sealing ring 23, the other plug 22 is opposite to the second connector 14 and is sleeved with a sealing ring 23, and the two plugs 22 can be respectively located at two ends of the mounting portion 42. The rod 21 and the plugs 22 may be integrated or separated, for example, a separated plug 22 is integrated with the rod 21, and another plug 22 is fixedly connected to the rod 21.
Further, the base 40 is further provided with a plurality of guiding ribs 44, the guiding ribs 44 are connected between the fixing portion 41 and the mounting portion 42 and are in sliding fit with the valve core 20, and the specific guiding ribs 44 can be in sliding fit with the plug 22 to play a guiding role.
The elastic member 30 is pressed between the valve core 20 and the seat body 40 to drive the valve core 20 to block the first port 13 and open the second port 14. The elastic element 30 is sleeved outside the rod 21 and is stretched between the plug 22 and the seat 40. Specifically, the mounting portion 42 is provided with a mounting groove 45, and the mounting groove 45 is located on the periphery of the through hole 43. The plug 22 opposite to the first interface 13 may also be provided with a mounting groove 45, and one end of the elastic element 30 is embedded in the mounting groove 45 of the mounting portion 42, and the other end is embedded in the mounting groove 45 of the plug 22. The elastic member 30 may be a spring.
The utility model discloses in, can set first interface 13 and second interface 14 to be located the same axis, then case 20 sets to along this axis activity, and this first interface 13 and second interface 14 can regard as the water inlet, and this third interface 15 can regard as the delivery port. The working principle is as follows:
in a normal state, referring to fig. 5, the first port 13 is blocked by the plug 22 under the action of the elastic member 30 and is in a normally closed state, and the second port 14 is opened.
If water enters the second port 14, the water flow can directly flow into the third port 15 without pushing the valve core 20, so that the flow loss can be reduced, and at the moment, the first port 13 is closed, so that the water flow is prevented from entering the first port 13.
If the valve core 20 is pushed by the water flow against the elastic force of the elastic member 30 when the first port 13 is filled with water, the valve core 20 moves to open the first port 13 and close the second port 14, and the water flow enters the third port 15, which can prevent the water flow from entering the second port 14, see fig. 6.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. The utility model provides a three-way check valve, includes the valve body, and this valve body is equipped with first interface, second interface and the third interface that communicates each other, its characterized in that: the valve core, the elastic piece and the seat body are also included; the seat body is fixedly arranged in the valve body and is provided with a through hole; the valve core can movably penetrate through the through hole and can open the first connector and block the second connector under the action of water pressure; the elastic piece is propped between the valve core and the seat body to drive the valve core to block the first interface and open the second interface.
2. The three-way check valve of claim 1, wherein: the valve body is provided with a main body and a valve cover, the main body is provided with a first interface and a third interface, and the valve cover and the main body are detachably and fixedly connected and are provided with the second interface; the seat body is positioned in the main body.
3. The three-way check valve of claim 2, wherein: a cavity is arranged in the main body and is communicated with the first interface and the third interface; the seat body is positioned in the cavity, and one end of the seat body is abutted against the inner wall of the cavity; one end of the valve cover is inserted into the cavity and abuts against the other end of the seat body, and the second interface is communicated with the cavity.
4. The three-way check valve of claim 2, wherein: the periphery of the main body is provided with a retaining ring, the valve cover is correspondingly provided with a buckling groove, and the valve cover is buckled outside the retaining ring through the buckling groove to realize fixation.
5. The three-way check valve of claim 4, wherein: the buckle ring is provided with a notch, the valve cover is correspondingly provided with a fastener, the fastener is provided with the buckle groove, and the buckle groove is buckled on or separated from the buckle ring by screwing in or screwing out the fastener from the notch.
6. A three-way check valve as defined in claim 3 wherein: the valve cover is provided with a pressing piece, the pressing piece is located on the periphery of the second interface and is inserted into the cavity and abutted against the corresponding end of the seat body.
7. The three-way check valve of claim 1, wherein: the valve core is provided with a rod body and two plugs, the valve core penetrates through the through hole, and the two plugs are fixed at two ends of the rod body; the elastic piece is sleeved outside the rod body and is propped between the plug and the seat body.
8. The three-way check valve of claim 1, wherein: the seat body is provided with a fixing part and an installation part, and the fixing part is tightly matched with the valve body; the mounting part is provided with the through hole and a mounting groove, and the mounting groove is positioned on the periphery of the through hole; the end part of the elastic piece is embedded in the mounting groove.
9. The three-way check valve of claim 8, wherein: the pedestal still is equipped with a plurality of direction ribs, this direction rib connect in between fixed part and the installation department and with case sliding fit.
10. The three-way check valve of claim 1, wherein: the first interface and the second interface are positioned on the same axis, and the valve core moves along the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220013165.2U CN217153105U (en) | 2022-01-04 | 2022-01-04 | Three-way check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220013165.2U CN217153105U (en) | 2022-01-04 | 2022-01-04 | Three-way check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217153105U true CN217153105U (en) | 2022-08-09 |
Family
ID=82688264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220013165.2U Active CN217153105U (en) | 2022-01-04 | 2022-01-04 | Three-way check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217153105U (en) |
-
2022
- 2022-01-04 CN CN202220013165.2U patent/CN217153105U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |