CN221075259U - Internal leakage preventing structure of stop valve - Google Patents

Abstract

The utility model discloses an internal leakage prevention structure of a stop valve, which comprises a valve body, wherein a valve rod is arranged at the upper end of the valve body in a threaded connection manner, a flashboard is rotatably connected at one end of the valve rod extending into the valve body, convex bodies are arranged on the top surface and the bottom surface of the interior of the valve body, a water flow blocking channel is formed between the two convex bodies, the side surface of the flashboard is in sliding connection with the convex bodies through a limiting mechanism, a boss is fixedly arranged on the lower end surface of the flashboard, slots are respectively arranged on the upper end surfaces of the two convex bodies corresponding to the boss, sealing rubber rings are fixedly arranged on the two side walls of the interior of the slots, the valve has the advantages of simple and reliable structure, convenient installation, stable use and the like, is suitable for the leakage prevention requirements of various stop valves, has reasonable structural design and easy manufacture, is suitable for the fields of general industry and civil use, can be widely applied to the fields of water treatment, water supply pipe networks, chemical industry, construction and the like, the performance and reliability of the valve are improved, and the maintenance and operation cost are reduced.

Description

Internal leakage preventing structure of stop valve

Technical Field

The utility model relates to the technical field of valves, in particular to an internal leakage preventing structure of a stop valve.

Background

In the prior art of stop valves, common leakage-proof structures mainly comprise sealing rings, sealing gaskets and the like. However, these sealing structures have some drawbacks, which lead to the problem of leakage during use.

Firstly, the sealing ring and the sealing gasket are easy to age, corrode, deform and the like due to long-time use or pressure change, so that the sealing performance is reduced, and water leakage in the valve can not be effectively prevented. Secondly, the material selection and design of the sealing ring and the sealing gasket are possibly unreasonable, cannot adapt to the working conditions of different media, and are easy to loosen, leak and the like in high-temperature and high-pressure environments, so that the normal operation and the service life of the valve are affected.

In addition, in the traditional valve structure, the connecting mechanism of the flashboard and the valve body has certain defects. In the state that the valve is closed, the clearance between the flashboard and the valve seat is larger, and the problem of internal water leakage is easy to cause. Meanwhile, when the valve is opened or closed, the connection between the flashboard and the valve body may be not tight enough and is easily affected by vibration and impact force, so that the connection between the flashboard and the valve body is invalid, and the possibility of internal leakage is further increased.

In addition, for some important industrial fields, especially in the occasion that has strict requirements on environment and personnel safety, the problem of internal water leakage cannot be found and treated in time only by means of the traditional structural design, and huge risks are brought to production and life. Therefore, the prior equipment has defects in the aspects of leakage prevention performance, structural design, monitoring alarm and the like, and needs to be further improved and promoted.

Disclosure of utility model

The utility model provides an internal leakage preventing structure of a stop valve for solving various problems.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a leak structure in stop valve prevents, includes the valve body, and valve body upper end threaded connection is equipped with the valve rod, and the valve rod stretches into the inside one end rotation of valve body and connects and be equipped with the flashboard, the inside top surface of valve body and bottom surface all are equipped with the convex body, constitute the passageway that blocks rivers between two convex bodies, flashboard side passes through stop gear and convex body sliding connection, the fixed boss that is equipped with of terminal surface under the flashboard, two the convex body up end all corresponds the boss and is equipped with the slot, and the inside both sides wall of slot is all fixed and is equipped with sealed rubber ring.

Further, the lower end face of the flashboard is fixedly provided with a rubber plug with a trapezoid cross section.

Further, the limiting mechanism comprises a sliding groove arranged on the side face of the convex body, and further comprises a sliding block fixedly arranged on the side face of the flashboard, the sliding block is in matched sliding connection with the sliding groove, and the convex body is fixedly arranged on the top face inside the valve body.

Further, still include first water pressure sensor, second water pressure sensor and external control ware, first water pressure sensor, second water pressure sensor all with external control ware electric connection for the inside state that leaks of real-time supervision valve body, the water inlet of valve body is located to first water pressure sensor, and the water outlet of valve body is located to second water pressure sensor, and the valve body bottom is located to external control ware.

Further, an audible and visual alarm is fixedly arranged on the external controller, and the audible and visual alarm is electrically connected with the external controller.

Compared with the prior art, the utility model has the advantages that:

1. the arrangement of the rubber plug can enhance the sealing effect and improve the leak-proof performance of the valve. The trapezoid cross section design of the rubber plug can form closer contact with the valve rod, so that the valve is ensured to be completely sealed in a closed state, and the internal leakage of water flow is prevented.

2. Through the stop gear of spout and slider for be connected between flashboard and the convex body inseparabler, ensured the steady motion of flashboard. The design of spout and slider can realize the accurate counterpoint between flashboard and the convex body, prevents that the flashboard from breaking away from the convex body because of vibration or impact to guaranteed the operational reliability and the long-term stability of valve.

3. The application of the water pressure sensor and the external controller can monitor the water pressure condition inside the valve body in real time, and give an alarm through the audible and visual alarm to remind operators to process, so that water leakage accidents are avoided in time. The water pressure sensor is respectively arranged at the water inlet end and the water outlet end of the valve body, and whether the water leakage phenomenon occurs in the valve body can be accurately judged by monitoring the change of water pressure. The external controller is connected with the water pressure sensor through electric connection, timely receives and processes signals of the sensor, triggers the audible and visual alarm to send out alarm signals, and reminds relevant personnel to take necessary measures.

4. The valve has the advantages of simple and reliable structure, convenient installation, stable use and the like, and is suitable for the leakage-proof requirements of various stop valves. The valve has reasonable structural design and easy manufacture, is suitable for the fields of general industry and civil use, can be widely applied to the fields of water treatment, water supply network, chemical industry, construction and the like, improves the performance and reliability of the valve, and reduces the maintenance and operation cost.

Drawings

FIG. 1 is a schematic cross-sectional view of a shut-off valve leak protection structure according to the present utility model.

Fig. 2 is a schematic cross-sectional structure of a sample (without a sensor, an external controller and an audible and visual alarm) of a shut-off valve leak prevention structure of the present utility model.

Fig. 3 is a schematic structural view of a region a of an internal leakage preventing structure of a shut-off valve according to the present utility model.

Fig. 4 is a schematic structural view of a region B of an internal leakage preventing structure of a shut-off valve according to the present utility model.

As shown in the figure: 1. a valve body; 2. a valve stem; 3. a flashboard; 4. a convex body; 5. a boss; 6. a slot; 7. sealing rubber rings; 8. a rubber plug; 9. a chute; 10. a slide block; 11. a first water pressure sensor; 12. a second water pressure sensor; 13. an external controller; 14. an audible and visual alarm; 15. a channel.

Detailed Description

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation configuration and operation, and thus are not to be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly stated or limited otherwise, the terms "provided with," "mounted to," "connected to," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The present utility model will be described in further detail with reference to the accompanying drawings.

The utility model provides a leak structure in shut-off valve prevents that combines 1 to 4 of attached drawings, includes valve body 1, valve rod 2 and flashboard 3, and valve body 1 upper end is equipped with valve rod 2 through threaded connection, and valve rod 2 stretches into the inside one end rotation connection of valve body 1 and is equipped with flashboard 3, and valve body 1 inside top surface and bottom surface all are equipped with convex body 4, constitute the passageway 15 that blocks the rivers between two convex bodies 4. The side of flashboard 3 passes through stop gear and convex body 4 sliding connection, and flashboard 3 lower terminal surface is fixed to be equipped with boss 5, and two convex body 4 up end correspond boss 5 and are equipped with slot 6, and slot 6 inside both sides wall is fixed to be equipped with sealed rubber ring 7.

The lower end face of the flashboard 3 is fixedly provided with a rubber plug 8 with a trapezoid cross section. The rubber plug 8 is in sealing contact with the channel 15, so that the sealing effect of the flashboard 3 is enhanced, and the internal leakage of water flow is prevented.

The limiting mechanism comprises a chute 9 arranged on the side surface of the convex body 4 and a sliding block 10 fixedly arranged on the side surface of the flashboard. The slide block is matched with the slide groove, so that sliding connection between the flashboard and the convex body is realized. The convex body 4 is fixedly arranged on the top surface inside the valve body 1, so that the stability and the reliability of the limiting mechanism are ensured.

The stop valve internal leakage preventing structure further comprises a first water pressure sensor 11, a second water pressure sensor 12 and an external controller 13. The first water pressure sensor 11 and the second water pressure sensor 12 are respectively installed at the water inlet end and the water outlet end of the valve body. The two sensors are electrically connected with an external controller 13 and are used for monitoring the water pressure condition inside the valve body in real time. The external controller 13 is arranged at the bottom of the valve body and is fixedly provided with an audible and visual alarm 14. When the sensor detects that water leaks in the valve body, the external controller can trigger the audible and visual alarm to send out an alarm signal to remind related personnel to solve the water leakage problem.

By using the embodiment, the internal leakage prevention structure of the stop valve can be realized, and the stop valve has the advantages of blocking water flow, enhancing sealing effect, stabilizing and reliable limiting mechanism, monitoring in real time, alarming and the like. This embodiment can be applied to various shut-off valves and provides a more reliable and safe leakage prevention function.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (5)

1. The utility model provides a leak structure in stop valve prevents, includes valve body (1), and valve body (1) upper end threaded connection is equipped with valve rod (2), and valve rod (2) stretch into one end rotation connection inside valve body (1) and are equipped with flashboard (3), its characterized in that: the valve is characterized in that convex bodies (4) are arranged on the inner top surface and the bottom surface of the valve body (1), a channel (15) for blocking water flow is formed between the two convex bodies (4), the side surface of the flashboard (3) is in sliding connection with the convex bodies (4) through a limiting mechanism, a boss (5) is fixedly arranged on the lower end surface of the flashboard (3), slots (6) are respectively arranged on the upper end surfaces of the convex bodies (4) corresponding to the boss (5), and sealing rubber rings (7) are respectively fixedly arranged on the two inner side walls of the slots (6).

2. The shut-off valve leak protection structure of claim 1, wherein: the lower end face of the flashboard (3) is fixedly provided with a rubber plug (8) with a trapezoid cross section.

3. The shut-off valve leak protection structure of claim 1, wherein: the limiting mechanism comprises a sliding groove (9) arranged on the side face of the convex body (4), and further comprises a sliding block (10) fixedly arranged on the side face of the flashboard (3), the sliding block (10) is in matched sliding connection with the sliding groove (9), and the convex body (4) is fixedly arranged on the inner top face of the valve body (1).

4. The shut-off valve leak protection structure of claim 1, wherein: still include first water pressure sensor (11), second water pressure sensor (12) and external control ware (13), first water pressure sensor (11), second water pressure sensor (12) all with external control ware (13) electric connection for inside state that leaks of real-time supervision valve body (1), the water inlet of valve body (1) is located to first water pressure sensor (11), the water outlet of valve body (1) is located to second water pressure sensor (12), valve body (1) bottom is located to external control ware (13).

5. The shut-off valve leak protection structure of claim 4, wherein: an audible and visual alarm (14) is fixedly arranged on the external controller (13), and the audible and visual alarm (14) is electrically connected with the external controller (13).