CN212564565U - Overflow valve and fluid pipeline system - Google Patents
Overflow valve and fluid pipeline system Download PDFInfo
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- CN212564565U CN212564565U CN202020985478.5U CN202020985478U CN212564565U CN 212564565 U CN212564565 U CN 212564565U CN 202020985478 U CN202020985478 U CN 202020985478U CN 212564565 U CN212564565 U CN 212564565U
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- valve body
- floating ball
- guide sleeve
- limiting part
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Abstract
The utility model belongs to the technical field of pipeline equipment, in particular to a flow passing valve, which comprises a valve body, wherein the valve body is provided with a water inlet and a water outlet, a first fluid channel is arranged in the valve body, a first limit part and a second limit part are fixedly arranged in the first fluid channel, a floating ball is limited in a floating ball limit cavity between the first limit part and the second limit part, and the floating ball is in clearance fit with the inner wall of the first fluid channel; the second limiting part is closer to the water outlet relative to the first limiting part, the second limiting part is annular, and when the floating ball props against the second limiting part, the second limiting part is blocked to close the overflowing valve; and a second fluid channel is arranged and is communicated with the water inlet and the floating ball limiting cavity. By utilizing the micro clearance between the floating ball and the inner wall of the first fluid channel, the impact water hammer force of the fluid drives the floating ball to move, when the flow is overlarge, the floating ball is driven by the medium force to move forwards until the floating ball props against the second limiting part, and the blocking is closed to close the overflowing valve, so that the structure is simple.
Description
Technical Field
The utility model belongs to the technical field of the pipe-line equipment, concretely relates to overflow valve and fluid piping system.
Background
Excess flow valves are commonly used in fluid conduits to limit the flow rate to a predetermined maximum flow rate to regulate the flow of fluid therethrough. If the flow rate exceeds a predetermined value, indicating an abnormal operation or a danger such as a damage or rupture of a hose, pipe or tube, the valve automatically stops the flow of the liquid or gas to prevent excessive discharge of the liquid or gas. The existing overflowing valve has a complex structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a flow valve and fluid piping system.
The utility model discloses the technical scheme who takes as follows: a flow passing valve comprises a valve body, wherein a water inlet and a water outlet are formed in the valve body, a first fluid channel communicated with the water inlet and the water outlet is arranged in the valve body, a first limiting part and a second limiting part are fixedly arranged in the first fluid channel, a floating ball limiting cavity is formed in the first fluid channel between the first limiting part and the second limiting part, a floating ball is limited in the floating ball limiting cavity and is in clearance fit with the inner wall of the first fluid channel, and the floating ball can move between the first limiting part and the second limiting part;
the second limiting part is closer to the water outlet relative to the first limiting part, the second limiting part is annular, and when the floating ball props against the second limiting part, the second limiting part is blocked to close the overflowing valve;
and a second fluid channel is arranged and is communicated with the water inlet and the floating ball limiting cavity.
The valve body consists of an outer valve body and a guide sleeve arranged in an inner cavity of the outer valve body, two ends of the guide sleeve are connected with the outer valve body, a first fluid channel is formed in the inner cavity of the guide sleeve, and a second fluid channel is formed between the outer wall of the guide sleeve and the inner wall of the outer valve body;
the guide sleeve is provided with a first pipe body part with the inner diameter larger than the diameter of the floating ball and a second pipe body part with the inner diameter smaller than the diameter of the floating ball, and the floating ball is limited in the first pipe body part and is in clearance fit with the first pipe body part and the second pipe body part.
The first pipe body part and the second pipe body part are in transition through a second limiting part, and the inner wall of the second limiting part is a conical surface.
The first pipe body part is provided with a first through hole communicated with the inside and the outside of the guide sleeve, and the second pipe body part is provided with a second through hole communicated with the inside and the outside of the guide sleeve.
The end part of the first pipe body part is connected with the inner wall, close to the water outlet, of the outer valve body, and the first limiting part is a pipeline which is arranged on the inner wall, close to the water outlet, of the outer valve body and is smaller than the diameter of the floating ball in inner diameter.
The outer valve body is formed by connecting a first valve body and a second valve body which are separated, the guide sleeve and the first valve body are integrated, or the guide sleeve and the second valve body are integrated, or the guide sleeve and the first valve body and the second valve body are separated, and two ends of the guide sleeve are respectively abutted against the inner wall of the first valve body and the inner wall of the second valve body.
The first valve body and the second valve body are connected through a flange connection structure.
The guide sleeve, the first valve body and the second valve body are separated, two ends of the guide sleeve are respectively abutted to the inner wall of the first valve body and the inner wall of the second valve body, the inner wall of the first valve body is provided with a first limiting groove, the inner wall of the second valve body is provided with a second limiting groove, and two ends of the guide sleeve are respectively limited in the first limiting groove and the second limiting groove.
The fluid pipeline system with the overflow valve is characterized in that a water inlet and a water outlet of the valve body are respectively connected with a pipeline, the water inlet and the water outlet are respectively positioned at the lower end and the upper end of the valve body, and fluid enters from the bottom and flows out from the top.
The utility model has the advantages as follows: the utility model discloses utilize the micro clearance between floater and the first fluid passage inner wall, fluidic impact water hammer power drives the floater motion, and when the flow was too big, the floater was driven forward by the dielectric force, and until the floater withstood the spacing portion of second, the closure was plugged up and is made the overflow valve close simple structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic structural view of the present invention in a normal flow according to an embodiment;
fig. 2 is a schematic structural view of a guide sleeve according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an outer valve body according to an embodiment of the present invention;
FIG. 4 is a schematic structural view illustrating an embodiment of the present invention when the flow rate is too large;
FIG. 5 is a schematic view of an embodiment of the present invention when the flow rate is too small;
in the figure, 1, a water inlet; 2, a water outlet; 3, a first fluid channel; 4, floating balls; 5, a first limiting part; 6, a second limiting part; 7, a floating ball limiting cavity; 8, a second fluid channel; 9, guiding a sleeve; 901, a first body portion; 902, a second body portion; 903, a first through hole; 904, a second via; 10, a first valve body; 1001, a first limit groove; 11, a second valve body; 1101, a second limit groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be construed as limitations to the embodiments of the present invention, and the following embodiments do not describe the embodiments one by one.
The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.
As shown in fig. 1, a flow valve comprises a valve body, wherein a water inlet 1 and a water outlet 2 are arranged on the valve body, a first fluid channel 3 communicating the water inlet 1 and the water outlet 2 is arranged in the valve body, a first limiting part 5 and a second limiting part 6 are fixedly arranged in the first fluid channel 3, a floating ball limiting cavity 7 is formed in the first fluid channel 3 between the first limiting part 5 and the second limiting part 6, a floating ball 4 is limited in the floating ball limiting cavity 7, the floating ball 4 is in clearance fit with the inner wall of the first fluid channel 3, and the floating ball 4 can move between the first limiting part 5 and the second limiting part 6;
the second limiting part 6 is closer to the water outlet 2 relative to the first limiting part 5, the second limiting part 6 is annular, and when the floating ball 4 props against the second limiting part 6, the second limiting part is blocked to close the overflowing valve;
and a second fluid channel 8 is arranged, and the second fluid channel 8 is communicated with the water inlet 1 and the floating ball limiting cavity 7.
By utilizing the micro clearance between the floating ball and the inner wall of the first fluid channel, the impact water hammer force of the fluid drives the floating ball to move, when the flow is overlarge, the floating ball is driven by the medium force to move forwards until the floating ball props against the second limiting part, and the blocking is closed to close the overflowing valve, so that the structure is simple.
The valve body consists of an outer valve body and a guide sleeve 9 arranged in an inner cavity of the outer valve body, two ends of the guide sleeve 9 are connected with the outer valve body, a first fluid channel 3 is formed in the inner cavity of the guide sleeve 9, and a second fluid channel 8 is formed between the outer wall of the guide sleeve 9 and the inner wall of the outer valve body;
as shown in fig. 2, the guide sleeve 9 has a first body portion 901 with an inner diameter larger than the diameter of the floating ball 4, and a second body portion 902 with an inner diameter smaller than the diameter of the floating ball 4, and the floating ball 4 is limited in the first body portion 901 and is in clearance fit with the first body portion 901.
The inner cavity of the valve body can be provided with only one cavity, and the water inlet 1 and the floating ball limiting cavity are communicated through an external pipeline to form a second fluid channel.
The first pipe body portion 901 and the second pipe body portion 902 are transited through a second limiting portion 6, and the inner wall of the second limiting portion 6 is a conical surface. When the floating ball props against the second limiting part 6, the floating ball is matched with the conical surface, so that the abrasion is reduced.
The first pipe body part 901 is provided with a first through hole 903 communicating the inside and the outside of the guide sleeve 9, and the second pipe body part 902 is provided with a second through hole 904 communicating the inside and the outside of the guide sleeve 9.
The end of the first pipe body portion 901 is connected with the inner wall of the outer valve body close to the water outlet 2, and the first limiting portion 5 is a pipeline which is arranged on the inner wall of the outer valve body close to the water outlet 2 and has an inner diameter smaller than the diameter of the floating ball 4. The first limiting part 5 may also be a snap ring or a four-ring limiting part or the like arranged on the inner wall of the outer valve body close to the water outlet 2 or on the inner wall of the guide sleeve 9.
The outer valve body is formed by connecting a first valve body 10 and a second valve body 11 which are separated, the guide sleeve 9 and the first valve body 10 are integrated, or the guide sleeve 9 and the second valve body 11 are integrated, or the guide sleeve 9, the first valve body 10 and the second valve body 11 are separated, and two ends of the guide sleeve 9 are respectively abutted to the inner wall of the first valve body 10 and the inner wall of the second valve body 11.
The first valve body 10 and the second valve body 11 are connected by a flange connection structure.
In this embodiment, the guide sleeve 9, the first valve body 10 and the second valve body 11 are separated, two ends of the guide sleeve 9 are respectively abutted to an inner wall of the first valve body 10 and an inner wall of the second valve body 11, the inner wall of the first valve body 10 is provided with a first limiting groove 1001, the inner wall of the second valve body 11 is provided with a second limiting groove 1101, and two ends of the guide sleeve 9 are respectively limited in the first limiting groove 1001 and the second limiting groove 1101. The guide sleeve 9, the first valve body 10 and the second valve body 11 are cast and formed respectively, during assembly, the floating ball 4 is arranged in the guide sleeve 9, then the first valve body 10 and the second valve body 11 are connected with the guide sleeve 9 from two ends of the guide sleeve 9 respectively, production is convenient, production efficiency is improved, or the guide sleeve 9 and the first valve body 10 can be cast and formed integrally, or the guide sleeve 9 and the second valve body 11 can be cast and formed integrally, so that casting difficulty is high, and cost is high.
The fluid pipeline system provided with the overflow valve is characterized in that a water inlet 1 and a water outlet 2 of the valve body are respectively connected with a pipeline.
The water inlet 1 and the water outlet 2 are respectively positioned at the lower end and the upper end of the valve body, and fluid enters the floating ball 4 from the bottom to the top.
The flow passing valve is installed on a fluid pipeline system, when the flow of fluid in the pipeline is increased, the floating ball moves in the downstream direction under the action of an impact water hammer of the fluid, the fluid is supplied to the closed pipeline through the floating ball and the first pipe body part, when the flow of the fluid is reduced, the floating ball pushes the ball downstream under the action of the floating force, the flow area is increased, and the flow is increased until a set flow design value is reached. This embodiment is based on the floater principle, combines the structure of check valve, realizes the automatic control of flow through simple structure, prevents that the pipeline from overflowing the flow output to guarantee the pipeline safe operation that flows down.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. A flow passing valve comprises a valve body, wherein a water inlet (1) and a water outlet (2) are arranged on the valve body, and a first fluid channel (3) communicated with the water inlet (1) and the water outlet (2) is arranged in the valve body, and is characterized in that a first limiting part (5) and a second limiting part (6) are fixedly arranged in the first fluid channel (3), a floating ball limiting cavity (7) is formed in the first fluid channel (3) between the first limiting part (5) and the second limiting part (6), a floating ball (4) is limited in the floating ball limiting cavity (7), the floating ball (4) is in clearance fit with the inner wall of the first fluid channel (3), and the floating ball (4) can move between the first limiting part (5) and the second limiting part (6);
the second limiting part (6) is closer to the water outlet (2) relative to the first limiting part (5), the second limiting part (6) is annular, and when the floating ball (4) props against the second limiting part (6), the second limiting part is closed and blocked to close the overflowing valve;
a second fluid channel (8) is arranged, and the second fluid channel (8) is communicated with the water inlet (1) and the floating ball limiting cavity (7).
2. The excess flow valve of claim 1, wherein: the valve body consists of an outer valve body and a guide sleeve (9) arranged in an inner cavity of the outer valve body, two ends of the guide sleeve (9) are connected with the outer valve body, a first fluid channel (3) is formed in the inner cavity of the guide sleeve (9), and a second fluid channel (8) is formed between the outer wall of the guide sleeve (9) and the inner wall of the outer valve body;
the guide sleeve (9) is provided with a first tube body part (901) with the inner diameter larger than that of the floating ball (4) and a second tube body part (902) with the inner diameter smaller than that of the floating ball (4), and the floating ball (4) is limited in the first tube body part (901) and is in clearance fit with the first tube body part (901).
3. The excess flow valve of claim 2, wherein: the first pipe body part (901) and the second pipe body part (902) are in transition through a second limiting part (6), and the inner wall of the second limiting part (6) is a conical surface.
4. The excess flow valve of claim 2, wherein: the first pipe body part (901) is provided with a first through hole (903) for communicating the inside and the outside of the guide sleeve (9), and the second pipe body part (902) is provided with a second through hole (904) for communicating the inside and the outside of the guide sleeve (9).
5. The excess flow valve of claim 2, wherein: the end part of the first pipe body part (901) is connected with the inner wall of the outer valve body close to the water outlet (2), and the first limiting part (5) is a pipeline which is arranged on the outer valve body close to the water outlet (2) and has the inner diameter smaller than the diameter of the floating ball (4).
6. The excess flow valve of claim 2, wherein: the outer valve body is formed by connecting a first valve body (10) and a second valve body (11) which are separated from each other, the guide sleeve (9) and the first valve body (10) are integrated, or the guide sleeve (9) and the second valve body (11) are integrated, or the guide sleeve (9), the first valve body (10) and the second valve body (11) are separated from each other, and two ends of the guide sleeve (9) are respectively abutted against the inner wall of the first valve body (10) and the inner wall of the second valve body (11).
7. The excess flow valve of claim 6, wherein: the first valve body (10) and the second valve body (11) are connected through a flange connection structure.
8. The excess flow valve of claim 6, wherein: the guide sleeve (9) and the first valve body (10) and the second valve body (11) are separated, two ends of the guide sleeve (9) are abutted to the inner wall of the first valve body (10) and the inner wall of the second valve body (11) respectively, the inner wall of the first valve body (10) is provided with a first limiting groove (1001), the inner wall of the second valve body (11) is provided with a second limiting groove (1101), and two ends of the guide sleeve (9) are limited in the first limiting groove (1001) and the second limiting groove (1101) respectively.
9. Fluid conduit system provided with an excess flow valve according to any of claims 1-8, characterized in that: the water inlet (1) and the water outlet (2) of the valve body are respectively connected with a pipeline.
10. The fluid conduit system of claim 9, wherein: the water inlet (1) and the water outlet (2) are respectively positioned at the lower end and the upper end of the valve body, and fluid enters from the lower end and flows out from the upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985478.5U CN212564565U (en) | 2020-06-02 | 2020-06-02 | Overflow valve and fluid pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985478.5U CN212564565U (en) | 2020-06-02 | 2020-06-02 | Overflow valve and fluid pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564565U true CN212564565U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020985478.5U Active CN212564565U (en) | 2020-06-02 | 2020-06-02 | Overflow valve and fluid pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564565U (en) |
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2020
- 2020-06-02 CN CN202020985478.5U patent/CN212564565U/en active Active
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