CN210265968U

CN210265968U - Water testing emptying valve

Info

Publication number: CN210265968U
Application number: CN201920840984.2U
Authority: CN
Inventors: 蒋慧敏
Original assignee: Fuluoken Machinery Technology Shanghai Co ltd
Current assignee: Fuluoken Machinery Technology Shanghai Co ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-04-07
Anticipated expiration: 2029-06-05

Abstract

The utility model provides a water testing emptying valve, which comprises a valve body, wherein one end of the valve body is provided with a water inlet, the other end of the valve body is provided with a water outlet, the valve body is provided with a rotating handle, the rotating handle is connected with a valve rod arranged in the valve body, the valve rod is connected with a hollow spherical valve core in the valve body, one end of the spherical valve core is provided with a throttle orifice plate, the other end of the spherical valve core is provided with a first through hole, and a second through hole is also arranged on the spherical valve core at one side of the connection line of the throttle orifice plate and the first through hole, wherein, a center hole of the throttle orifice plate, the first through hole and the second through hole are all; the valve body shell is provided with an opening communicated with the interior of the valve body, and the opening is provided with a lens. The utility model discloses an integral type structure, with the integration of three major functions of terminal water testing, evacuation and on-line observation realize on a valve, the case adopts the ball valve structure, can be at water testing, evacuation, the three position fast switch-over of closing.

Description

Water testing emptying valve

Technical Field

The utility model relates to a fire water spraying system field, concretely relates to emptying valve tries water.

Background

The end test water valve is an indispensable component in the fire water spraying system, and is usually arranged at the tail end of the water spraying system for detecting the reliability of the spraying alarm system. When the tail end water test valve is opened to simulate the spray head to break and spray water, the alarm system should be started. Generally speaking, a water testing joint or a throttling orifice is additionally arranged in a water testing pipeline of the tail end water testing valve to achieve a K coefficient flow value of a spray header, a common ball valve is adopted to control the on-off of water flow in the water testing pipeline, and a water receiving funnel is required to be opened and additionally arranged at the water testing joint to drain water and observe the water outlet condition. In addition, an additional evacuation valve is required to be added to the pipeline system with the evacuation requirement for water drainage.

At present, a common ball valve is generally adopted to be additionally provided with a test water joint or a throttling orifice plate to ensure the flow of test water. As shown in fig. 1, a diagram of a tail end water test pipeline of a conventional fire water spraying system is provided, wherein a three-way pipe 2, a cut-off ball valve 3 and a spray head body 4 are sequentially installed at a water outlet of an inspection valve 1, and a pressure gauge 5 is rotatably arranged at the other end of the three-way pipe 2.

Problems or disadvantages of the prior art:

1. the end water testing valve is only used for testing water and has no emptying function; if the water in the pipeline system needs to be drained, an additional drain valve needs to be arranged.

2. The water connection department of trying at the valve end need open and install the water receiving funnel additional, so, there is the possibility that experimental water splashes at the water testing in-process.

3. The parts are more, and the installation is comparatively loaded down with trivial details, need install the water swivel of trying, or at the orifice plate of cutting off ball valve one side installation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a water testing emptying valve, the water testing emptying valve comprises a valve body, one end of the valve body is provided with a water inlet, the other end is provided with a water outlet, the valve is provided with a rotating handle, the rotating handle is connected with a valve rod arranged in the valve body, the valve rod is connected with a hollow spherical valve core in the valve body, one end of the spherical valve core is provided with a throttle orifice plate, the other end of the spherical valve core is provided with a first through hole, and a second through hole is arranged on the spherical valve core at one side of the connection line of the throttle orifice plate and the first through hole, wherein, a center hole of the throttle orifice plate, the first through hole and the second through hole are all connected with the inner hollow area of the;

an opening communicated with the interior of the valve body is arranged on the valve body shell, and a lens is arranged in the opening.

Furthermore, a water diversion seat is further arranged at one end, close to the water inlet, in the water testing emptying valve and is a conical ring, waist-shaped holes are distributed in the side wall of the water diversion seat, and one end, with the smaller diameter, of the water diversion seat is abutted to the outer wall of the spherical valve core.

Furthermore, a first lock hole is formed in the rotating handle, a positioning plate is fixed on a shell of the water testing evacuation valve, and a second lock hole is formed in the positioning plate;

the first lock hole and the second lock hole are overlapped in the vertical direction after the rotating handle rotates to a specific position.

Furthermore, a sealing ring is arranged in the water testing emptying valve and at the water outlet.

Furthermore, a clamping groove is formed in the top of the spherical valve core, and the bottom of the valve rod is clamped in the clamping groove.

The utility model has the advantages of as follows:

(1) adopt the integral type structure, with three major functions integration of end examination water, evacuation and on-line observation realize on a valve, the case adopts the ball valve structure, can try water, evacuation, close three position fast switch over:

(2) the spherical valve core is integrated with a K coefficient flow value of a throttling orifice plate simulation spray head, and a water test joint or a throttling orifice plate is not required to be additionally arranged in a pipeline;

(3) the closed position is provided with a lock hole, and a padlock is additionally arranged when the valve is not used at ordinary times so as to prevent non-testing or appointed personnel from operating the valve;

(4) this patent has increased the transparent sight glass and can have real-time observation out the water condition on the valve body, can avoid the pipeline to open like this and observe, avoids the splash phenomenon that the process of trying water appears simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a diagram of an end test water line of a conventional fire water sprinkler system;

FIG. 2 is a cross-sectional view of a water testing evacuation valve provided by the present invention;

FIG. 3 is a diagram showing the use state of the test water evacuation valve;

FIG. 4 is a top view of the test water evacuation valve;

fig. 5-6 are perspective views of the ball valve core.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description so as to explain the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

The utility model provides a water-testing emptying valve, as shown in fig. 2-4, water-testing emptying valve is including valve body 12, and valve body 12 one end is equipped with the water inlet and disposes valve gap 11 at the water inlet, and the other end is equipped with the delivery port, is provided with a turning handle 10 on valve body 12, and turning handle 10 links to each other with the valve rod 14 of locating in the valve body, and a hollow spherical case 13 in this valve rod 14 and the valve body 12 links to each other. Referring to fig. 5-6, one end of the spherical valve core 13 is provided with a throttle orifice 130, the other end of the spherical valve core 13 is provided with a first through hole 131, and the spherical valve core 13 on the side where the throttle orifice 130 is connected with the first through hole 131 is further provided with a second through hole 132, wherein the center hole of the throttle orifice 130, the first through hole 131 and the second through hole 132 are all connected with the hollow area inside the spherical valve core 13. Further, an opening communicating with the inside of the valve body is provided in the valve body housing, and a lens 14 is disposed in the opening.

In an optional embodiment, a water diversion seat 16 is further arranged at one end, close to the water inlet, in the test water emptying valve, the water diversion seat 16 is a conical ring, waist-shaped holes 161 are distributed in the side wall of the water diversion seat 16, and one end, with a smaller diameter, of the water diversion seat abuts against the outer wall of the spherical valve core 13.

In an alternative embodiment, the rotating handle 10 is provided with a first locking hole 18, the test water evacuation valve is fixed with a positioning plate 17, and the positioning plate 17 is provided with a second locking hole 19. When the rotating handle is rotated to the emptying (DRAIN) state, the first locking hole 18 and the second locking hole 19 are vertically overlapped. Padlocks are added to prevent non-testing or designated personnel from operating the valve when not in use at ordinary times.

In an alternative embodiment, a sealing ring 15 is arranged inside the test water emptying valve and at the water outlet.

In an alternative embodiment, the top of the ball valve core 13 is provided with a locking groove 133, and the bottom of the valve rod 14 is locked in the locking groove to drive the ball valve core 13 to rotate in the valve body.

The working principle of the ball valve core is explained below by combining the perspective views of the ball valve core shown in fig. 5-6:

(1) a TEST state in which the orifice plate 130 of the ball valve element 13 is connected to the water outlet and the first through hole 131 on the other side is connected to the water inlet, so that the water outlet discharges water at a predetermined flow rate under a desired water flow pressure;

(2) in a Drainage (DRAIN) state, in a water testing state, a handle 10 in fig. 4 is rotated anticlockwise by 45 degrees, the DRAIN state is entered into the DRAIN state from the TEST state, at the moment, the second through hole 132 is connected with the water outlet, water at the water inlet enters the valve body through the waist-shaped hole 161 on the water diversion seat 16, and the water is discharged through the second through hole 132.

(3) And (3) an OFF state, namely, under the water testing state, the handle 10 in the figure 4 is clockwise rotated by 45 degrees, the TEST state is changed into the OFF state, and at the moment, one non-porous end of the spherical valve core 13 blocks the water outlet, so that the water outlet is stopped.

It should be noted that the utility model provides a water test emptying valve is not restricted to water inlet and delivery port that fig. 3 shows and is on the collinear, is applicable equally at the valve of corner formula, and the water inlet and the delivery port of this valve body are 90 corner designs. The structure of the valve core in the valve body does not need to be changed, and all the functions can be realized by properly adjusting the rotation direction of the handle according to the rotation angle, which is not described in detail.

To sum up, because the utility model adopts the above technical scheme, have following advantage:

(1) this patent adopts the integral type structure, with three major functions integration of terminal water testing, evacuation and on-line observation realization on a valve, the case adopts the ball valve structure, can be at water testing, evacuation, three position fast switch-over of closing:

The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.

Claims

1. A water testing emptying valve is characterized by comprising a valve body, wherein one end of the valve body is provided with a water inlet, the other end of the valve body is provided with a water outlet, a rotating handle is arranged on the valve body and connected with a valve rod arranged in the valve body, the valve rod is connected with a hollow spherical valve core in the valve body, one end of the spherical valve core is provided with a throttle orifice plate, the other end of the spherical valve core is provided with a first through hole, and a second through hole is also arranged on the spherical valve core at one side of the connecting line of the throttle orifice plate and the first through hole, wherein a center hole of the throttle orifice plate, the first through hole and the second through hole are all connected with an internal hollow area of the spherical valve core;

2. The water testing and emptying valve as claimed in claim 1, wherein a water diversion seat is further arranged at one end of the water testing and emptying valve close to the water inlet, the water diversion seat is a conical ring, waist-shaped holes are distributed on the side wall of the water diversion seat, and one end of the water diversion seat with a smaller diameter abuts against the outer wall of the spherical valve core.

3. The water testing evacuation valve of claim 1, wherein the rotating handle is provided with a first locking hole, and a housing of the water testing evacuation valve is fixed with a positioning plate, and the positioning plate is provided with a second locking hole;

4. The test water evacuation valve of claim 1, wherein a sealing ring is disposed inside the test water evacuation valve at the water outlet.

5. The water testing evacuation valve of claim 1, wherein a notch is formed at the top of the spherical valve core, and the bottom of the valve rod is clamped in the notch.