CN223754789U - A foot valve with good sealing effect - Google Patents

Abstract

The utility model provides a pedal valve with good sealing effect, which belongs to the technical field of pedal valves and comprises a valve body, wherein a valve core is arranged in the valve body, a first sealing ring is arranged in an upper mounting groove of the valve core, a second sealing ring is arranged in a bottom mounting groove of the valve core, and a third sealing ring is arranged at the bottom of the valve body, wherein the first sealing ring, the second sealing ring and the third sealing ring are all contacted with an inner groove surface of the valve body.

Description

Foot valve with good sealing effect

Technical Field

The utility model relates to the technical field of foot valves, in particular to a foot valve with good sealing effect.

Background

The valve is a control component in a fluid conveying system, can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, splitting flow or overflow pressure relief and the like, is various in types, is also one type of valve, and is commonly used as an air valve, the interior of the valve body can be isolated from the outside through a sealing gasket by the existing part of foot valve, the fluid in the valve body is prevented from leaking outwards, but the airtight isolation between the connectors cannot be ensured under the static state, the fluid can be leaked out in advance through a gap between the valve body and the valve core, and the use effect of the foot valve can be influenced due to the leakage of the fluid when the foot valve is used.

Disclosure of utility model

In view of the above, the utility model provides the pedal valve with good sealing effect, which not only can prevent the fluid in the valve body from leaking outwards, but also can realize the sealing and isolation between the connectors, thereby ensuring the use effect of the pedal valve.

In order to solve the technical problems, the utility model provides the pedal valve with good sealing effect, which comprises a valve body, wherein a valve core is arranged in the valve body, a first sealing ring is arranged in an upper mounting groove of the valve core, a second sealing ring is arranged in a bottom mounting groove of the valve core, a third sealing ring is arranged at the bottom of the valve body, the first sealing ring, the second sealing ring and the third sealing ring are all contacted with an inner groove surface of the valve body, in the working process, a worker can press down the valve core, an originally closed upper joint is communicated with a lower joint, so that fluid circulation operation is realized, the first sealing ring can ensure the tightness between the upper part of the valve body and the valve core, the outward leakage of fluid between the valve core and a gap between the valve body and the valve core is avoided, the third sealing ring can ensure the tightness between a second thread groove at the bottom of the valve body and a thread mounted valve cover, the outward leakage of fluid between the second thread groove and the valve cover is avoided in a working state, the second sealing ring can be contacted with the inner part of the valve body in a static state of the pedal valve, the fluid is prevented from flowing out of the gap between the upper joint and the valve cover and the lower joint in advance in the static state.

The surface of valve body is provided with a plurality of first screw grooves, and equal threaded connection has the mouth in every first screw groove, conveniently carries out the installation change of mouth.

The number of the connectors is four, the second sealing ring is positioned between the connector at the upper side and the connector at the lower side, and when the valve core moves downwards, the second sealing ring can move to the bottom of the connector at the lower side, so that the circulation between the connectors at the upper side and the lower side is ensured.

The upper end surface of valve body is provided with the screw thread face, and threaded connection has fixation nut on the screw thread face, and the staff can realize the fixed of valve body through fixation nut.

The bottom of valve body has seted up the second thread groove, and second thread groove internal thread is connected with the valve gap, and the staff can twist out the valve gap through the rotation of second thread groove.

The third sealing ring is positioned on the upper side of the valve cover and is used for blocking and sealing the gap between the valve cover and the valve body.

In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:

1. When the foot valve is used, the fluid in the valve body can be prevented from leaking outwards, the sealing and isolation between the connectors can be realized, and the use effect of the foot valve is ensured.

2. When the valve core is used, the number of the connectors is four, the second sealing ring is positioned between the upper connector and the lower connector, and when the valve core is pressed down, the second sealing ring can move to the bottom of the lower connector, so that the circulation between the connectors at the upper side and the lower side is ensured.

3. When the valve is used, the upper end surface of the valve body is provided with the threaded surface, the threaded surface is connected with the fixing nut in a threaded manner, and a worker can fix the valve body through the fixing nut.

4. When the valve is used, the third sealing ring is positioned on the upper side of the valve cover, and the gap between the valve cover and the valve body is blocked and sealed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the right side cross-section of the present utility model;

Fig. 3 is a schematic view of a detailed structure of a valve body of the present utility model in cross section.

The reference numerals indicate 100, a valve body, 200, a valve core, 301, a first sealing ring, 302, a second sealing ring, 303, a third sealing ring, 401, a first thread groove, 402, a joint mouth, 501, a thread surface, 502, a fixing nut, 601, a second thread groove, 602 and a valve cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

According to one embodiment of the utility model, as shown in fig. 1 and 2, the pedal valve with good sealing effect comprises a valve body 100, a valve core 200 is arranged in the valve body 100, a first sealing ring 301 is arranged in an upper mounting groove of the valve core 200, a second sealing ring 302 is arranged in a bottom mounting groove of the valve core 200, a third sealing ring 303 is arranged at the bottom of the valve body 100, the first sealing ring 301, the second sealing ring 302 and the third sealing ring 303 are all contacted with an inner groove surface of the valve body 100, in the working process, a worker can press down the valve core 200, so that an originally closed upper joint 402 is communicated with a lower joint 402, fluid circulation operation is realized, the first sealing ring 301 can ensure tightness between the upper part of the valve body 100 and the valve core 200, the fluid is prevented from leaking outwards through a gap between the valve body 100 and the valve core 200, the third sealing ring 303 can ensure tightness between a second thread groove 601 at the bottom of the valve body 100 and a valve cover 602, the fluid is prevented from leaking outwards through a gap between the second thread groove 601 and the valve cover 602 in a working state, the pedal valve body can be prevented from leaking downwards through the gap between the lower joint 402 and the valve body 100 in a static state, and the valve body is prevented from being contacted with the valve body 100 in a static state.

According to another embodiment of the present utility model, as shown in fig. 1, 2 and 3, the surface of the valve body 100 is provided with a plurality of first thread grooves 401, each first thread groove 401 is internally and respectively connected with a nipple 402 in a threaded manner, so that the installation and replacement of the nipple 402 are facilitated, the number of the nipple 402 is four, the second sealing ring 302 is located between the nipple 402 on the upper side and the nipple 402 on the lower side, when the valve core 200 is in a pressing motion, the second sealing ring 302 moves to the bottom of the nipple 402 on the lower side, the circulation between the nipple 402 on the upper side and the nipple 402 on the lower side is ensured, the upper end surface of the valve body 100 is provided with a thread surface 501, the thread surface 501 is connected with a fixing nut 502 in a threaded manner, a worker can fix the valve body 100 through the fixing nut 502, the bottom of the valve body 100 is provided with a second thread groove 601, the second thread groove 601 is internally and is connected with a valve cover 602 in a threaded manner, and the worker can twist out the valve cover 602 through the rotation of the second thread groove 601, the third sealing ring 303 is located on the upper side of the valve cover 602, and a gap between the valve cover 602 and the valve body 100 is blocked and sealed.

In the use method of the foot pedal valve, a worker can press down the valve core 200 in the working process, so that the originally closed upper side joint mouth 402 is communicated with the lower side joint mouth 402, fluid circulation operation is realized, the first sealing ring 301 can ensure tightness between the upper part of the valve body 100 and the valve core 200, fluid leakage outwards through a gap between the valve body 100 and the valve core 200 is avoided, the third sealing ring 303 can ensure tightness between the second thread groove 601 at the bottom of the valve body 100 and the valve cover 602 arranged in a threaded manner, fluid leakage outwards through a gap between the second thread groove 601 and the valve cover 602 in the working state is avoided, the second sealing ring 302 can be in contact with the interior of the valve body 100 in the resting state of the foot pedal valve, fluid is prevented from flowing out in advance through the gap between the valve body 100 and the valve core 200, sealing performance between the upper side joint mouth 402 and the lower side joint mouth 402 is ensured, the foot pedal valve can not only prevent fluid in the interior of the valve body 100 from leaking outwards, but also can realize sealing isolation between the joint mouth 402, and the use effect of the foot pedal valve is ensured.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (6)

1. A foot valve with good sealing effect, comprising a valve body (100), characterized in that: a valve core (200) is provided inside the valve body (100), a first sealing ring (301) is provided in the upper mounting groove of the valve core (200), a second sealing ring (302) is provided in the bottom mounting groove of the valve core (200), and a third sealing ring (303) is provided at the bottom of the valve body (100), wherein the first sealing ring (301), the second sealing ring (302) and the third sealing ring (303) are all in contact with the inner groove surface of the valve body (100). 2. The foot valve with good sealing effect as described in claim 1, characterized in that: the surface of the valve body (100) is provided with a plurality of first threaded grooves (401), and each first threaded groove (401) is threadedly connected with a connector (402). 3. A foot valve with good sealing effect as described in claim 2, characterized in that: the number of the connectors (402) is four, and the second sealing ring (302) is located between the upper connector (402) and the lower connector (402). 4. A foot valve with good sealing effect as described in claim 1, characterized in that: the upper surface of the valve body (100) is provided with a threaded surface (501), and a fixing nut (502) is threadedly connected to the threaded surface (501). 5. A foot valve with good sealing effect as described in claim 1, characterized in that: a second threaded groove (601) is provided at the bottom of the valve body (100), and a valve cover (602) is threadedly connected in the second threaded groove (601). 6. A foot valve with good sealing effect as described in claim 5, characterized in that: the third sealing ring (303) is located on the upper side of the valve cover (602).