CN215568206U - Bellows stop check valve - Google Patents
Bellows stop check valve Download PDFInfo
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- CN215568206U CN215568206U CN202121532039.XU CN202121532039U CN215568206U CN 215568206 U CN215568206 U CN 215568206U CN 202121532039 U CN202121532039 U CN 202121532039U CN 215568206 U CN215568206 U CN 215568206U
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- valve
- pipeline
- heat preservation
- push rod
- piston push
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Abstract
The utility model discloses a corrugated pipe stop check valve which comprises a valve body, a valve cover, a flow passage, a valve rod, a valve clack and a sealing opening, wherein the valve cover is arranged on the valve body; the periphery of the valve rod is sleeved with a corrugated pipe; the valve cover is internally provided with a heat insulation cavity, the outer side of the valve cover is fixedly provided with a heat insulation member, the heat insulation member comprises an input pipeline, an output pipeline, a main pipeline, a branch pipe, an extension rod and a gas detection assembly, and the valve cover is internally provided with a transverse mounting hole for the main pipeline to extend into; the gas detection assembly comprises a shell, an inner cavity, a through hole, an auxiliary pipeline, a piston push rod, a compression spring, a controller and a contact switch. The utility model has the following advantages and effects: the heat preservation of the valve body is realized by arranging the heat preservation component, and a heat medium is injected into the heat preservation cavity through the input pipeline, so that the heat preservation mode is quick and the efficiency is high; meanwhile, the heat medium is pumped out through the output pipeline, so that heat circulation is realized, and the heat preservation stability of the valve body is effectively improved.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a corrugated pipe stop check valve.
Background
The check valve is a valve which is used for preventing the media from flowing backwards by automatically opening and closing a valve clack depending on the flow of the fluid media. Can be divided into a lifting check valve, a swing check valve and a butterfly check valve according to the structure.
When the traditional check valve works in a low-temperature environment for a long time, the medium remained on the valve rod is easy to freeze or crystallize, so that the check valve is difficult to open and close. In the case of the situation, a common method is to wrap the valve body by using a heat insulation material, so as to reduce the loss of heat energy and keep the normal temperature of the valve body, but the method has general heat insulation capability and unobvious effect, and the heat insulation material is required to wrap the valve body layer by layer, so that the operation is complicated. Therefore, it is necessary to provide a check valve that can achieve rapid heat preservation and has a good heat preservation effect.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a bellows stop check valve to solve the problems set forth in the background art.
The technical purpose of the utility model is realized by the following technical scheme: a corrugated pipe stop check valve comprises a valve body and a valve cover arranged at the upper end of the valve body, wherein a flow passage for fluid medium to flow is formed in the valve body, a valve rod penetrating through the flow passage is vertically arranged on the valve cover, a valve clack is arranged at one end, located at the flow passage, of the valve rod, and a sealing opening in sealing fit with the valve clack is formed in the flow passage;
the periphery of the valve rod is sleeved with a corrugated pipe for isolating the flow passage from the external atmosphere, the lower end of the corrugated pipe is welded with the valve rod, and the upper end of the corrugated pipe is welded with the valve cover;
A heat preservation cavity is arranged in the valve cover, and a heat preservation component is fixedly arranged on the outer side of the valve cover; the heat preservation component comprises an input pipeline, an output pipeline, a main pipeline and a gas detection assembly, the inner sides of the input pipeline and the output pipeline are respectively welded and fixed on the two sides of the main pipeline through branch pipes, the main pipeline is communicated with the input pipeline and the output pipeline on the basis of the branch pipes, extension rods are fixedly welded on the outer sides of the input pipeline and the output pipeline, and the extension rods are fixed on the outer sides of the valve covers in a bolt screwing mode on the extension rods; the valve cover is internally provided with a transverse mounting hole for the main pipeline to extend into, and the main pipeline extends into the heat preservation cavity through the mounting hole and is communicated with the heat preservation cavity;
the gas detection assembly comprises a shell, a sealed inner cavity is formed in the shell, a through hole communicated with the inner cavity is formed in the surface of the shell, an auxiliary pipeline is fixedly arranged at the through hole, and the auxiliary pipeline is welded and fixed on the main pipeline; a piston push rod, a compression spring and a contact switch are arranged in the inner cavity, the piston push rod is arranged in the inner cavity in a sliding manner, the compression spring is compressed by the piston push rod so as to have a reset acting force for enabling the piston push rod to slide towards the through hole, and the contact switch is fixed at the central position of the inner cavity, is led out through a lead and is connected with a controller outside the heat preservation component; when the heat medium in the heat preservation cavity is excessive, the piston push rod can be pressed in until the piston push rod is contacted with the contact switch to enable the contact switch to be conducted, a trigger signal is generated to the controller, and the controller receives the trigger signal to perform early warning alarm of the excessive heat medium.
The further setting is that: the input pipeline is provided with a first electromagnetic valve for controlling the connection/disconnection of the input pipeline, the first electromagnetic valve is provided with a first control end, and the first control end is led out through a lead and connected to the controller; the output pipeline is provided with a second electromagnetic valve for controlling the connection/disconnection of the output pipeline, the second electromagnetic valve is provided with a second control end, and the second control end is led out through a lead and connected to the controller.
The further setting is that: and a plurality of flexible cushion blocks which can be abutted against the piston push rod are arranged near the through hole of the inner cavity, and the cross section of each flexible cushion block is semicircular.
The utility model has the beneficial effects that:
1. the heat preservation component is arranged to realize heat preservation of the valve body, and a heat medium is injected into the heat preservation cavity through the input pipeline, so that the heat preservation mode is quick and efficient; meanwhile, the heat medium is pumped out through the output pipeline, so that heat circulation is realized, and the heat preservation stability of the valve body is effectively improved.
2. The input pipeline, the output pipeline and the main pipeline are fixed through the branch pipes, so that the structure is more stable, and meanwhile, the branch pipes play a role in communication, so that the three are communicated.
3. In the actual use process, the heat medium is required to be ensured not to be excessive, so the gas detection assembly is arranged to detect the quantity of the heat medium in real time; when the heat medium in the heat preservation cavity is excessive, the piston push rod is pressed inwards until the piston push rod is contacted with the contact switch to conduct the contact switch, a trigger signal is generated to the controller, the controller receives the trigger signal to perform early warning alarm of the excessive heat medium, and meanwhile, the controller can control the second electromagnetic valve to be opened, so that the heat medium is discharged, and the heat medium is more reasonable and intelligent; when the heat medium in the heat preservation cavity is normal, the piston push rod is separated from the contact switch under the reset acting force of the compression spring, so that the trigger signal disappears, and the normal state is represented.
4. According to the utility model, more intelligent control is realized by arranging the first electromagnetic valve and the second electromagnetic valve, and the use is more convenient.
5. According to the utility model, the flexible cushion block is arranged to play a role in protecting the piston push rod, so that the piston push rod is prevented from being damaged due to collision on the inner cavity wall under the reset acting force of the compression spring, and the service life of the piston push rod is effectively prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an enlarged view of a portion B in fig. 1.
In the figure: 11. a valve body; 12. a valve cover; 13. a flow channel; 14. a valve stem; 15. a valve flap; 16. sealing the opening; 21. a bellows; 31. a heat preservation cavity; 41. an input pipe; 42. an output pipe; 43. a main pipeline; 44. a branch pipe; 45. an extension rod; 121. mounting holes; 51. a housing; 511. an inner cavity; 512. a through hole; 52. an auxiliary pipe; 53. a piston push rod; 54. a compression spring; 55. a contact switch; 56. a controller; 61. a first solenoid valve; 611. a first control terminal; 62. a second solenoid valve; 621. a second control terminal; 71. and a flexible cushion block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, a bellows stop check valve includes a valve body 11 and a valve cover 12 disposed at an upper end of the valve body 11, a flow passage 13 for a fluid medium to flow is formed in the valve body 11, a valve rod 14 vertically disposed on the valve cover 12 and penetrating the flow passage 13, a valve flap 15 disposed at one end of the valve rod 14 located at the flow passage 13, and a sealing opening 16 disposed in the flow passage 13 and forming a sealing fit with the valve flap 15. The above-mentioned conventional structure as a check valve belongs to the prior art and is not described herein.
The periphery of the valve rod 14 is sleeved with a corrugated pipe 21 for isolating the flow passage 13 from the outside atmosphere, the lower end of the corrugated pipe 21 is welded with the valve rod 14, and the upper end of the corrugated pipe is welded with the valve cover 12;
a heat preservation cavity 31 is arranged in the valve cover 12, and a heat preservation component is fixedly arranged on the outer side of the valve cover 12; the heat preservation component comprises an input pipeline 41, an output pipeline 42, a main pipeline 43 and a gas detection component, the inner sides of the input pipeline 41 and the output pipeline 42 are respectively welded and fixed on the two sides of the main pipeline 43 through branch pipes 44, the main pipeline 43 is communicated with the input pipeline 41 and the output pipeline 42 based on the branch pipes 44, extension rods 45 are fixedly welded on the outer sides of the input pipeline 41 and the output pipeline 42, and the outer sides of the input pipeline 41 and the output pipeline 42 are fixed on the outer side of the valve cover 12 in a bolt screwing mode on the extension rods 45; a transverse mounting hole 121 into which the main pipeline 43 extends is formed in the valve cover 12, and the main pipeline 43 extends into the heat preservation cavity 31 through the mounting hole 121 and is communicated with the heat preservation cavity 31;
the gas detection assembly comprises a shell 51, a sealed inner cavity 511 is arranged in the shell 51, a through hole 512 communicated with the inner cavity 511 is arranged on the surface of the shell 51, an auxiliary pipeline 52 is fixedly arranged at the through hole 512, and the auxiliary pipeline 52 is welded and fixed on the main pipeline 43; a piston push rod 53, a compression spring 54 and a contact switch 55 are arranged in the inner cavity 511, the piston push rod 53 is arranged in the inner cavity 511 in a sliding manner, the compression spring 54 is compressed by the piston push rod 53 so as to have a reset acting force for enabling the piston push rod 53 to slide towards the through hole 512, and the contact switch 55 is fixed at the central position of the inner cavity 511, is led out through a lead and is connected with a controller 56 outside the heat preservation component; when the heat medium in the heat preservation cavity 31 is excessive, the piston push rod 53 is pressed inwards until the piston push rod 53 contacts the contact switch 55 to conduct the contact switch 55, a trigger signal is generated to the controller 56, and the controller 56 receives the trigger signal to perform early warning alarm of the excessive heat medium.
Wherein, the input pipeline 41 is provided with a first electromagnetic valve 61 for controlling the connection/disconnection of the input pipeline, the first electromagnetic valve 61 is provided with a first control end 611, and the first control end 611 is led out through a lead and connected to the controller 56; the output pipe 42 is provided with a second electromagnetic valve 62 for controlling the connection/disconnection thereof, and the second electromagnetic valve 62 has a second control end 621, and the second control end 621 is led out through a lead wire and connected to the controller 56.
A plurality of flexible cushion blocks 71 which can be abutted against the piston push rod 53 are arranged near the through hole 512 of the inner cavity 511, and the sections of the flexible cushion blocks 71 are semicircular.
In this embodiment, the controller 56 may employ a single chip microcomputer STM 8.
When the heat medium in the heat preservation cavity 31 is excessive, the piston push rod 53 is pressed inwards until the piston push rod 53 contacts the contact switch 55 to conduct the contact switch 55, a trigger signal is generated to the controller 56, the controller 56 receives the trigger signal to perform early warning alarm of the excessive heat medium, and meanwhile the controller 56 can control the second electromagnetic valve 62 to be opened, so that the discharge of the heat medium is realized, and the heat medium is more reasonable and intelligent; when the amount of the heat medium in the holding chamber 31 is normal, the piston rod 53 is separated from the contact switch 55 by the return force of the compression spring 54, and the trigger signal disappears, indicating a normal state.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (3)
1. A corrugated pipe stop check valve comprises a valve body (11) and a valve cover (12) arranged at the upper end of the valve body (11), wherein a flow passage (13) for a fluid medium to flow is formed in the valve body (11), a valve rod (14) penetrating through the flow passage (13) is vertically arranged on the valve cover (12), a valve clack (15) is arranged at one end, located on the flow passage (13), of the valve rod (14), and the flow passage (13) is provided with a sealing opening (16) which is in sealing fit with the valve clack (15); the method is characterized in that:
the periphery of the valve rod (14) is sleeved with a corrugated pipe (21) for isolating the flow channel (13) from the outside atmosphere, the lower end of the corrugated pipe (21) is welded with the valve rod (14), and the upper end of the corrugated pipe is welded with the valve cover (12);
a heat preservation cavity (31) is arranged in the valve cover (12), and a heat preservation component is fixedly arranged on the outer side of the valve cover (12); the heat preservation component comprises an input pipeline (41), an output pipeline (42), a main pipeline (43) and a gas detection assembly, the inner sides of the input pipeline (41) and the output pipeline (42) are respectively welded and fixed on the two sides of the main pipeline (43) through branch pipes (44), the main pipeline (43) is communicated with the input pipeline (41) and the output pipeline (42) based on the branch pipes (44), extension rods (45) are fixedly welded on the outer sides of the input pipeline (41) and the output pipeline (42) and fixed on the outer side of the valve cover (12) in a mode of screwing bolts on the extension rods (45); a transverse mounting hole (121) into which a main pipeline (43) extends is formed in the valve cover (12), and the main pipeline (43) extends into the heat preservation cavity (31) through the mounting hole (121) and is communicated with the heat preservation cavity (31);
The gas detection assembly comprises a shell (51), a sealed inner cavity (511) is formed in the shell (51), a through hole (512) communicated with the inner cavity (511) is formed in the surface of the shell (51), an auxiliary pipeline (52) is fixedly arranged at the through hole (512), and the auxiliary pipeline (52) is welded and fixed on the main pipeline (43); a piston push rod (53), a compression spring (54) and a contact switch (55) are arranged in the inner cavity (511), the piston push rod (53) is arranged in the inner cavity (511) in a sliding manner, the compression spring (54) is compressed by the piston push rod (53) so as to have a reset acting force for enabling the piston push rod (53) to slide towards the through hole (512), and the contact switch (55) is fixed at the central position of the inner cavity (511), is led out through a lead and is connected with a controller (56) outside the heat preservation component; when the heat medium in the heat preservation cavity (31) is excessive, the piston push rod (53) is pressed inwards until the piston push rod (53) is contacted with the contact switch (55) to conduct the contact switch (55), a trigger signal is generated to the controller (56), and the controller (56) receives the trigger signal to perform early warning alarm of the excessive heat medium.
2. A bellows stop check valve as claimed in claim 1, wherein: the input pipeline (41) is provided with a first electromagnetic valve (61) for controlling the connection/disconnection of the input pipeline, the first electromagnetic valve (61) is provided with a first control end (611), and the first control end (611) is led out through a lead and connected to the controller (56); the output pipeline (42) is provided with a second electromagnetic valve (62) for controlling the connection/disconnection of the output pipeline, the second electromagnetic valve (62) is provided with a second control end (621), and the second control end (621) is led out through a lead and connected to the controller (56).
3. A bellows stop check valve as claimed in claim 1, wherein: a plurality of flexible cushion blocks (71) which can be abutted against the piston push rod (53) are arranged near the through hole (512) of the inner cavity (511), and the sections of the flexible cushion blocks (71) are semicircular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121532039.XU CN215568206U (en) | 2021-07-06 | 2021-07-06 | Bellows stop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121532039.XU CN215568206U (en) | 2021-07-06 | 2021-07-06 | Bellows stop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215568206U true CN215568206U (en) | 2022-01-18 |
Family
ID=79823931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121532039.XU Active CN215568206U (en) | 2021-07-06 | 2021-07-06 | Bellows stop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215568206U (en) |
-
2021
- 2021-07-06 CN CN202121532039.XU patent/CN215568206U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 middle Dadao Road, Dadao village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province (Zhejiang Dongba transmission Co., Ltd.) Patentee after: Wenzhou ARAN Flow Technology Co.,Ltd. Address before: 325000 middle Dadao Road, Dadao village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province (Zhejiang Dongba transmission Co., Ltd.) Patentee before: Wenzhou Anrong Fluid Technology Co.,Ltd. |