CN215110669U - Self-compensating three-way valve - Google Patents

Self-compensating three-way valve Download PDF

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Publication number
CN215110669U
CN215110669U CN202120754550.8U CN202120754550U CN215110669U CN 215110669 U CN215110669 U CN 215110669U CN 202120754550 U CN202120754550 U CN 202120754550U CN 215110669 U CN215110669 U CN 215110669U
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Prior art keywords
valve core
valve
self
compensating
sleeve
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CN202120754550.8U
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Chinese (zh)
Inventor
吴鹏
孙黎明
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Changzhou Kaipeng Hydro Equipment Co ltd
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Changzhou Kaipeng Hydro Equipment Co ltd
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Abstract

The utility model relates to a self-compensating three-way valve, which comprises a valve body and a valve core component, wherein the valve body is provided with two air inlets and one air outlet; the valve core assembly comprises a valve core rod, a valve core base and a valve core sleeve, the valve core base is fixed in the valve body, the valve core sleeve is installed at the lower end of the valve core rod and matched in the valve core base, the valve core sleeve can rotate in the valve core base, a spring sleeved on the valve core rod is arranged above the valve core sleeve, a pressing cap is covered above the spring, and the pressing cap is sleeved on the valve core rod and connected with the valve body. The utility model discloses can realize the effect of self-compensation, guarantee the sealing performance of three-way valve, need not artifical manual adjustment, it is very convenient to use.

Description

Self-compensating three-way valve
Technical Field
The utility model belongs to the technical field of the three-way valve, concretely relates to self compensating formula three-way valve.
Background
The manual three-way valve drives the valve core sleeve to rotate in the valve core base through the valve core rod, so that switching of a connection state or a disconnection state is realized, the valve core sleeve can rotate in the valve core base, and good sealing performance needs to be kept between the valve core sleeve and the valve core base to prevent leakage of the three-way valve.
After the manual three-way valve is used for a period of time, the valve core sleeve is abraded, sealing failure is caused, the pressing cap needs to be manually rotated downwards to extrude the valve core sleeve, and therefore sealing between the valve core sleeve and the valve core base is achieved again. However, by adopting the method, the condition of the three-way valve can be monitored in real time by workers, so that the sealing problem of the three-way valve can be found in time, otherwise, the leakage of the three-way valve can be directly caused, and the use is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a self compensating formula three-way valve to solve the problem of three-way valve seal failure.
The utility model discloses a self compensating formula three-way valve is realized like this:
a self-compensating three-way valve comprises
The valve body is provided with two air inlets and an air outlet;
the valve core assembly comprises a valve core rod, a valve core base and a valve core sleeve, wherein the valve core base is fixed in the valve body, the valve core sleeve is arranged at the lower end of the valve core rod and is matched in the valve core base, the valve core sleeve can rotate in the valve core base, a spring sleeved on the valve core rod is arranged above the valve core sleeve, a pressing cap is covered above the spring, and the pressing cap is sleeved on the valve core rod and is connected with the valve body;
and the air outlet and two or one of the air inlets can be switched to the off state by rotating the valve core rod.
Furthermore, two air inlets are formed in the side wall of the valve core base, and the air inlets are communicated with the air inlets in a one-to-one correspondence mode.
Furthermore, a cavity with an open structure at the bottom end is arranged inside the lower end of the valve core rod, and a through hole I communicated with the cavity is formed in the side wall of the valve core sleeve.
Furthermore, the valve core base is of a cylindrical structure, and the cavity is communicated with the air outlet through the lower end of the valve core base.
Further, the valve core sleeve is in an inverted round table shape, an inner cavity matched with the valve core sleeve in shape is arranged in the valve core base, and a limiting step is arranged in the inner cavity.
Furthermore, a supporting sealing ring sleeved on the valve core rod is arranged below the spring, the inner ring surface of the supporting sealing ring is sealed with the valve core rod, and the outer ring surface of the supporting sealing ring is sealed with the valve body.
Furthermore, a supporting step is arranged on the outer wall of the valve core rod, and the supporting sealing ring is arranged on the supporting step.
Furthermore, the inside of the lower end of the pressing cap is provided with a containing cavity, the top end of the spring extends into the containing cavity, and the bottom end of the spring abuts against the supporting sealing ring.
Furthermore, an external thread is arranged on the outer ring surface of the pressing cap, and the pressing cap is in threaded connection with the valve body.
After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:
the utility model discloses a setting of spring, when wearing and tearing appear in the case cover, can utilize the elasticity of spring to exert pressure to the case cover to realize the effect of self-compensation, guarantee the sealing performance between case cover and the case base, need not artifical manual adjustment, it is very convenient to use.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a block diagram of a self-compensating three-way valve according to a preferred embodiment of the present invention;
fig. 2 is a structural diagram of a self-compensating three-way valve according to a preferred embodiment of the present invention;
fig. 3 is a top view of a self-compensating three-way valve according to a preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is an enlarged view of portion B of FIG. 4;
fig. 6 is an exploded view of a spool assembly of a self-compensating three-way valve according to a preferred embodiment of the invention;
in the figure: the valve comprises a valve body 1, an air inlet 1-1, an air outlet 1-2, an air inlet channel 1-3, an air outlet channel 1-4, a valve core rod 2, a cavity 2-1, a through hole II 2-2, an inner annular groove 2-3, a supporting step 2-4, a valve core base 3, an air inlet 3-1, an inner cavity 3-2, a limiting step 3-3, a valve core sleeve 4, a through hole I4-1, a spring 5, a press cap 6, a containing cavity 6-1, a copper gasket 7, an outer annular groove 7-1 and an O-shaped ring 8.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-6, a self-compensating three-way valve comprises a valve body 1 and a valve core assembly, wherein the valve body 1 is provided with two air inlets 1-1 and one air outlet 1-2; the valve core assembly comprises a valve core rod 2, a valve core base 3 and a valve core sleeve 4, the valve core base 3 is fixed in the valve body 1, the valve core sleeve 4 is installed at the lower end of the valve core rod 2 and is matched in the valve core base 3, the valve core sleeve 4 can rotate in the valve core base 3, a spring 5 sleeved on the valve core rod 2 is arranged above the valve core sleeve 4, a pressing cap 6 is covered above the spring 5, and the pressing cap 6 is sleeved on the valve core rod 2 and is connected with the valve body 1; by rotating the valve core rod 2, the air outlet 1-2 can be switched to the off state with two or one of the air inlets 1-1.
The valve core base 3 is fixed in the valve body 1, the switching of the on-off state is realized by rotating the valve core rod 2 and the valve core sleeve 4, in order to enable the valve core base 3 to be communicated with the air inlet 1-1 on the valve body 1 and further realize the switching of the on-off state of the three-way valve, two air inlets 3-1 are arranged on the side wall of the valve core base 3, and the air inlets 3-1 are communicated with the air inlet 1-1 in a one-to-one correspondence mode.
Specifically, the air inlet 3-1 is communicated with an air inlet 1-1 on the outer surface of the valve body 1 through an air inlet channel 1-3 in the valve body 1.
In order to communicate with an air inlet 1-1 connected with the valve core base 3 through the valve core sleeve 4, a cavity 2-1 with an open structure at the bottom end is arranged inside the lower end of the valve core rod 2, and a through hole I4-1 communicated with the cavity 2-1 is arranged on the side wall of the valve core sleeve 4.
Specifically, a through hole II 2-2 corresponding to the through hole I4-1 is formed in the side wall of the cavity 2-1.
In order to communicate with the air outlet 1-2 on the valve body 1, the valve core base 3 is of a cylindrical structure, and the cavity 2-1 is communicated with the air outlet 1-2 through the lower end of the valve core base 3.
The air outlet 1-2 positioned on the outer surface of the valve body 1 is communicated with the cavity 2-1 in the valve core rod 2 through an air outlet channel 1-4 in the valve body 1.
The valve core sleeve 4 is rotated, when the through hole I4-1 is opposite to any one air inlet 3-1, the air inlet 1-1 connected with the air inlet 3-1 is communicated with the cavity 2-1, and is communicated with the air outlet 1-2; correspondingly, the air inlet 1-1 and the air outlet 1-2 which are connected with the air inlet 3-1 are in a closed state when the air inlet 3-1 is not opposite to the through hole I4-1.
In order to realize the rotation fit between the valve core sleeve 4 and the valve core base 3 and ensure the sealing property between the valve core sleeve 4 and the valve core base 3, the valve core sleeve 4 is in an inverted round table shape, an inner cavity 3-2 matched with the valve core sleeve 4 in shape is arranged in the valve core base 3, and a limiting step 3-3 is arranged in the inner cavity 3-2.
The limiting step 3-3 can limit the downward moving degree of the valve core sleeve 4.
In order to realize the sealing performance of the joint of the valve core rod 2 and the valve body 1, a support sealing ring sleeved on the valve core rod 2 is arranged below the spring 5, the inner annular surface of the support sealing ring is sealed with the valve core rod 2, and the outer annular surface of the support sealing ring is sealed with the valve body 1.
The supporting sealing ring not only can realize the sealing between the valve core rod 2 and the valve body 1, but also can realize the supporting function of the spring 5.
In this embodiment, the supporting sealing ring comprises a copper gasket 7 sleeved on the valve core rod 2, and the inner side and the outer side of the copper gasket 7 are respectively provided with an O-ring 8.
Specifically, an outer annular groove 7-1 is formed in the outer annular surface of the copper gasket 7, the O-shaped ring 8 located on the outer side is installed in the outer annular groove 7-1, an inner annular groove 2-3 is formed in the outer surface of the valve core rod 2 where the copper gasket 7 is located, and the O-shaped ring 8 located on the inner side is installed in the inner annular groove 2-3.
The supporting sealing ring is not limited to the above-mentioned copper gasket 7 structure with an O-ring, and may be any structure that can ensure the sealing property at the joint of the valve core rod 2 and the valve body 1 and support the spring 5.
In order to limit the copper gasket 7 and prevent the copper gasket from moving downwards, the outer wall of the valve core rod 2 is provided with support steps 2-4, and a support sealing ring is arranged above the support steps 2-4.
In this embodiment, the copper gasket 7 supporting the seal ring is supported on the support steps 2-4.
When the three-way valve is used for the first time, namely the valve core sleeve 4 is not abraded, the spring 5 is in a compressed state, in order to realize compression of the spring 5, the containing cavity 6-1 is arranged inside the lower end of the pressing cap 6, the top end of the spring 5 extends into the containing cavity 6-1, and the bottom end of the spring 5 abuts against the supporting sealing ring.
In order to facilitate the installation of the pressing cap 6, an external thread is arranged on the outer annular surface of the pressing cap 6, and the pressing cap 6 is in threaded connection with the valve body 1.
When the three-way valve is installed, the valve core base 3 is installed in the valve body 1, the two air inlets 3-1 are respectively communicated with the two air inlets 1-1, the valve core sleeve 4 is sleeved at the lower end of the valve core rod 2, the copper gasket 7 is installed on the valve core rod 2, then the valve core rod 2 is installed in the valve body 1, and the valve core sleeve 4 is matched in the valve core base 3. Then the spring 5 and the pressing cap 6 are sleeved on the valve core rod 2, and then the pressing cap 6 is screwed downwards to compress the spring 5, so that the spring 5 is in a compressed state. After the three-way valve is used for a period of time, when the valve core sleeve 4 is worn and the seal between the valve core sleeve and the valve core base 3 fails, the elastic force of the spring 5 can automatically push the valve core rod 2 to move downwards, so that the valve core sleeve 4 is pressed downwards, and the good sealing performance is achieved between the valve core sleeve 4 and the valve core base 3 again.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (9)

1. A self-compensating three-way valve is characterized by comprising
The valve comprises a valve body (1), wherein two air inlets (1-1) and one air outlet (1-2) are formed in the valve body (1);
the valve core assembly comprises a valve core rod (2), a valve core base (3) and a valve core sleeve (4), the valve core base (3) is fixed in the valve body (1), the valve core sleeve (4) is installed at the lower end of the valve core rod (2) and matched in the valve core base (3), the valve core sleeve (4) can rotate in the valve core base (3), a spring (5) sleeved on the valve core rod (2) is arranged above the valve core sleeve (4), a pressing cap (6) is covered above the spring (5), and the pressing cap (6) is sleeved on the valve core rod (2) and connected with the valve body (1);
and the air outlet (1-2) and two or one of the air inlets (1-1) can be switched to a turn-off state by rotating the valve core rod (2).
2. The self-compensating three-way valve according to claim 1, wherein two air inlet holes (3-1) are arranged on the side wall of the valve core base (3), and the air inlet holes (3-1) are communicated with the air inlet holes (1-1) in a one-to-one correspondence manner.
3. The self-compensating three-way valve according to claim 1, wherein a cavity (2-1) with an open bottom is arranged inside the lower end of the valve core rod (2), and a through hole I (4-1) communicated with the cavity (2-1) is arranged on the side wall of the valve core sleeve (4).
4. A self-compensating three-way valve according to claim 3, wherein the valve core base (3) is of a cylindrical structure, and the cavity (2-1) is communicated with the air outlet (1-2) through the lower end of the valve core base (3).
5. A self-compensating three-way valve according to claim 1, wherein the valve core sleeve (4) is in the shape of an inverted circular truncated cone, an inner cavity (3-2) which is matched with the valve core sleeve (4) in shape is arranged in the valve core base (3), and a limit step (3-3) is arranged in the inner cavity (3-2).
6. Self-compensating three-way valve according to claim 1, characterized in that a support sealing ring is arranged below the spring (5) and is sleeved on the valve core rod (2), the inner annular surface of the support sealing ring is sealed with the valve core rod (2), and the outer annular surface of the support sealing ring is sealed with the valve body (1).
7. A self-compensating three-way valve according to claim 6, characterized in that the outer wall of the spool rod (2) is provided with support steps (2-4), the support sealing ring being mounted on the support steps (2-4).
8. Self-compensating three-way valve according to claim 6, characterized in that the pressure cap (6) has a cavity (6-1) inside its lower end, the top end of the spring (5) extends into the cavity (6-1) and the bottom end abuts against the supporting sealing ring.
9. Self-compensating three-way valve according to claim 1, characterized in that the outer annular surface of the pressure cap (6) is provided with an external thread, the pressure cap (6) being screwed to the valve body (1).
CN202120754550.8U 2021-04-13 2021-04-13 Self-compensating three-way valve Active CN215110669U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120754550.8U CN215110669U (en) 2021-04-13 2021-04-13 Self-compensating three-way valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120754550.8U CN215110669U (en) 2021-04-13 2021-04-13 Self-compensating three-way valve

Publications (1)

Publication Number Publication Date
CN215110669U true CN215110669U (en) 2021-12-10

Family

ID=79265312

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120754550.8U Active CN215110669U (en) 2021-04-13 2021-04-13 Self-compensating three-way valve

Country Status (1)

Country Link
CN (1) CN215110669U (en)

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