CN214946765U - Automatic exhaust valve capable of resetting by pressing - Google Patents

Automatic exhaust valve capable of resetting by pressing Download PDF

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Publication number
CN214946765U
CN214946765U CN202121204931.5U CN202121204931U CN214946765U CN 214946765 U CN214946765 U CN 214946765U CN 202121204931 U CN202121204931 U CN 202121204931U CN 214946765 U CN214946765 U CN 214946765U
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CN
China
Prior art keywords
valve
port
needle
valve rod
rod
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Active
Application number
CN202121204931.5U
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Chinese (zh)
Inventor
黄祚君
李亚波
张传森
王晓春
孙琳
李照明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Thermal Power Group Co ltd
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Daqing Thermal Power Group Co ltd
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Priority to CN202121204931.5U priority Critical patent/CN214946765U/en
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Publication of CN214946765U publication Critical patent/CN214946765U/en
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Abstract

The utility model relates to a press reset automatic exhaust valve, which belongs to the valve technical field and comprises a valve body, a valve cover, a valve rod and a floating ball, wherein the top of the valve body is connected with the valve cover, the bottom of the valve body is provided with a connecting pipe, the top center of the valve cover is provided with a valve port, and the inner side of the valve port is connected with a guide cylinder; the lower part of the inner cavity of the valve body is provided with a valve rod support, the center of the valve rod support is provided with a valve rod limiting hole, the bottom end of the valve rod penetrates through the floating ball seat to be arranged on the valve rod limiting hole, the top end of the valve rod is connected with a valve needle, and the top end of the valve needle is arranged in the guide cylinder and matched with the valve port. The device lengthens the longitudinal space in the valve and can separate water and gas; meanwhile, the pressing valve needle is designed, when the device works, the valve needle moves up and down in the valve port, impurities and rusty scales can be effectively removed, if the valve port is excessively polluted and the valve rod is clamped, the valve rod, the valve needle and the floating ball can be reset only by slightly pressing the valve needle; when the valve port is not tightly sealed, the valve needle can be pressed to flush rusty scale nearby the valve port by using water in the valve.

Description

Automatic exhaust valve capable of resetting by pressing
Technical Field
The utility model relates to the technical field of valves, concretely relates to press automatic exhaust valve that resets.
Background
At present, the internal structure of an exhaust valve on the market only comprises a floating ball, a valve rod and a sealing gasket, the valve ball of the exhaust valve is matched with a valve port, the longitudinal space of the whole valve body is narrow, and the water and the gas can not be completely separated, so that the water and the gas in the exhaust valve can be flushed out from the valve port at the moment the valve port is closed; in addition, when the existing exhaust valve on the market is in a continuous on-off state, impurities in water or rust scale generated by the valve body can be continuously precipitated in the valve port along with the exhausted air, the valve port is easily blocked or the valve rod and the floating ball are limited not to reset, and the sealing performance of the valve port can be damaged in the past, so that the water leakage condition is caused. There is therefore a need for a push-to-reset automatic vent valve that solves the above problems.
Disclosure of Invention
Not enough to prior art, the utility model provides a press automatic exhaust valve that resets.
The utility model discloses an automatic exhaust valve capable of resetting by pressing, which comprises a valve body, a valve cover, a valve rod and a floating ball, wherein the valve body is in a long tubular structure, the top of the valve body is connected with the valve cover, the bottom of the valve body is provided with a connecting pipe, the top center of the valve cover is provided with a valve port, and the inner side of the valve port is connected with a guide cylinder; the lower part of the inner cavity of the valve body is provided with a valve rod support, the center of the valve rod support is provided with a valve rod limiting hole, the bottom end of the valve rod penetrates through the floating ball seat to be arranged on the valve rod limiting hole, the top end of the valve rod is connected with a valve needle, and the top end of the valve needle is arranged in the guide cylinder and matched with the valve port.
As a further improvement of the utility model, the valve cover and the valve body are connected by the screw thread I and sealed by the sealing gasket I.
As a further improvement of the utility model, the valve port inner side and the guide cylinder are connected by a screw thread II and sealed by a sealing gasket II.
The automatic exhaust valve capable of resetting by pressing has reasonable structure, is convenient and practical, lengthens the longitudinal space in the valve, can really realize the separation of water and gas, and only exhausts and does not discharge water; meanwhile, the valve rod is provided with a part for pressing the valve needle, when the device works, the valve needle moves up and down in the valve port, impurities and rusty scales brought by gas can be effectively cleaned, smooth exhaust of the valve port is ensured, and if the valve port is excessively polluted and the valve rod is clamped, the valve rod, the valve needle and the floating ball only need to be slightly pressed to reset; when the valve port is not tightly sealed due to the accumulation of the rust scale, the valve needle can be pressed to flush the rust scale nearby the valve port by utilizing the water in the valve; in addition, the valve body is designed with screw threads for connection, so that the valve is convenient to disassemble and flush the rust in the valve, and can be matched with an isolating valve for use to prolong the service life of the valve body.
Drawings
Fig. 1 is a schematic structural view of the open state of the present invention;
fig. 2 is a schematic view of the structure of the closed state of the present invention.
Detailed Description
The utility model discloses an automatic exhaust valve resets by pressing, including valve body 1, valve gap 2, valve rod 3 and floater 4, valve body 1 is long tubular structure, and valve body 1 top is connected with valve gap 2 with screw thread I11, and is equipped with sealed pad I12 between valve body 1 and the valve gap 2, realizes the sealing of valve body 1 and valve gap 2, and this kind of connection structure is convenient and practical, makes valve gap 2 can need not the instrument when dismantling, and the nature is tightened; the bottom of the valve body 1 is provided with a connecting pipe 5, the center position of the top of the valve cover 2 is provided with a valve port 6, the inner side of the valve port 6 is connected with a guide cylinder 7 through a screw thread II 13, and a sealing gasket II 14 is arranged between the inner side of the valve port 6 and the guide cylinder 7 to realize the sealing of the inner side of the valve port 6 and the guide cylinder 7; the lower part of the inner cavity of the valve body 1 is provided with a valve rod support 8, the center of the valve rod support 8 is provided with a valve rod limiting hole 9, the bottom end of the valve rod 3 penetrates through the floating ball 4 and is seated on the valve rod limiting hole 9, the top end of the valve rod 3 is connected with a valve needle 10, the top end of the valve needle 10 is arranged in the guide cylinder 7 and matched with the valve port 6, and the valve port 6, the valve needle 10, the valve rod 3, the floating ball 4 and the valve rod limiting hole 9 are all on the same straight line, so that the valve needle 10, the valve rod 3 and the floating ball 4 keep concentric when moving up and down.
The valve cover 2, the valve body 1 and the guide cylinder 7 are all made of plastic PPH materials, the valve needle 10, the valve rod 3 and the floating ball 4 are all made of 304 stainless steel, and the valve needle, the valve rod and the floating ball are not scaled and rusted, so that the safety performance is improved, and the production and manufacturing cost is reduced.
The working principle of the device is as follows: when the system is filled with water, gas in the water continuously escapes to the highest position of the valve body 1 for gathering because of temperature and pressure changes, when the gas pressure is greater than the pressure in the system, the floating ball 4 falls down to drive the valve rod 3 and the valve needle 10 to move downwards, the valve port 6 is opened, and the gas is continuously discharged; when the gas pressure is lower than the pressure in the system, the floating ball 4 rises to drive the valve rod 3 and the valve needle 10 to move upwards and place the valve rod and the valve needle in the valve port 6, and the valve port 6 is closed. The device is continuously operated circularly according to the steps, and simultaneously the valve needle 10 continuously moves up and down in the valve port 6, so that the dirt discharged along with the gas is removed.
When air exists in the system, the gas is gathered at the upper part of the valve body 1, the gas in the valve body 1 is gathered, the pressure is increased, when the gas pressure is greater than the pressure in the system, the gas can enable the water surface in the valve cavity to descend, the floating ball 4 descends along with the water level, the valve rod 3 and the valve needle 10 are driven to move downwards, the valve port 6 is opened, and the gas is discharged; when the gas is exhausted, the water level rises, the floating ball 4 also rises, the valve rod 3 and the valve needle 10 are driven to move upwards, the valve needle 10 is arranged in the valve port 6, and the valve port 6 is closed. If the dirt on the valve port 6 is too much, when the valve rod 3 is clamped, the valve needle 10 is lightly pressed to reset the valve rod 3, the valve needle 10 and the floating ball 4. The device can also be used with a closing valve in a matching way, so that the valve body 1 can be conveniently replaced or cleaned.

Claims (3)

1. The automatic exhaust valve capable of resetting by pressing comprises a valve body (1), a valve cover (2), a valve rod (3) and a floating ball (4), and is characterized in that the valve body (1) is of a long cylindrical structure, the top of the valve body (1) is connected with the valve cover (2), the bottom of the valve body is provided with a connecting pipe (5), a valve port (6) is arranged at the center of the top of the valve cover (2), and the inner side of the valve port (6) is connected with a guide cylinder (7); the lower part of the inner cavity of the valve body (1) is provided with a valve rod support (8), the center of the valve rod support (8) is provided with a valve rod limiting hole (9), the bottom end of the valve rod (3) penetrates through the floating ball (4) and is seated on the valve rod limiting hole (9), the top end of the valve rod (3) is connected with a valve needle (10), and the top end of the valve needle (10) is arranged in the guide cylinder (7) and is matched with the valve port (6).
2. The push-to-reset automatic exhaust valve according to claim 1 is characterized in that the valve cover (2) and the valve body (1) are connected by a screw thread I (11) and sealed by a sealing gasket I (12).
3. The push-to-reset automatic exhaust valve according to claim 1 is characterized in that the inner side of the valve port (6) and the guide cylinder (7) are connected by a screw thread II (13) and sealed by a sealing gasket II (14).
CN202121204931.5U 2021-06-01 2021-06-01 Automatic exhaust valve capable of resetting by pressing Active CN214946765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121204931.5U CN214946765U (en) 2021-06-01 2021-06-01 Automatic exhaust valve capable of resetting by pressing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121204931.5U CN214946765U (en) 2021-06-01 2021-06-01 Automatic exhaust valve capable of resetting by pressing

Publications (1)

Publication Number Publication Date
CN214946765U true CN214946765U (en) 2021-11-30

Family

ID=79057552

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121204931.5U Active CN214946765U (en) 2021-06-01 2021-06-01 Automatic exhaust valve capable of resetting by pressing

Country Status (1)

Country Link
CN (1) CN214946765U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Huang Zuojun

Inventor after: Liu Yabo

Inventor after: Zhang Chuansen

Inventor after: Wang Xiaochun

Inventor after: Sun Lin

Inventor after: Li Zhaoming

Inventor before: Huang Zuojun

Inventor before: Li Yabo

Inventor before: Zhang Chuansen

Inventor before: Wang Xiaochun

Inventor before: Sun Lin

Inventor before: Li Zhaoming

CB03 Change of inventor or designer information