CN221628987U - Float valve capable of adjusting liquid level and reducing water hammer effect - Google Patents

Abstract

The utility model discloses a float valve capable of adjusting liquid level and reducing water hammer effect, which comprises a valve body positioned in a water tank, wherein a start-stop control rod is connected to the valve body, and a folded linear transmission rod is rotatably arranged at the other end of the start-stop control rod; the side wall fixedly connected with liquid level control pipe of water tank, the top of liquid level control pipe is provided with the check valve, the transfer line includes vertical outer pole section and interior pole section, and outer pole section is located the outside of liquid level control pipe and outer pole section's top and opens and stop swing joint between the control lever, and interior pole section is provided with the floater by the top of liquid level control pipe bottom inserted intraductal and interior pole section, is connected through the compensating rod section between outer pole section, the bottom of interior pole section, and liquid level control pipe bottom and interior pole section complex perforation aperture is greater than interior pole section external diameter. The utility model aims to provide a ball float valve which is low in cost, can reduce the water hammer effect, can control the liquid level in a water tank and improve the water quality in the water tank.

Description

Float valve capable of adjusting liquid level and reducing water hammer effect

Technical Field

The utility model relates to the technical field of valves, in particular to a float valve capable of adjusting liquid level and reducing water hammer effect.

Background

When water is used for resident life and industrial production, water supply tanks with different functions, such as a life water tank, a hot water tank and a buffer water tank, can be arranged according to different water use conditions. In the current stage, a float valve is generally adopted to control the start and stop of water replenishing of the water tank, but the float valve is also used for replenishing water, and the following defects are also caused: 1. when the water replenishing pipe diameter of the water tank is large, the water surface in the water tank generates waves due to the impact of water flow when the water tank is replenished, so that the floating ball fluctuates up and down, and the floating ball valve is in a frequently opened and closed state. The condition not only aggravates the loss of ball float valve for ball float valve is very easy to damage, and because the round trip of ball float valve opens and shuts, leads to the pipeline to take place the water hammer effect frequently, has further aggravated the damage of pipeline, and in addition once because the resonance that the water hammer led to the pipeline produces and then leads to the pipeline to damage, this will cause great economic loss for the user. 2. When the water flow of the water tank is smaller than the water supplementing flow, the float valve is still in a frequently opened and closed state, and the condition can also lead to the aggravation of the loss of the float valve and frequent water hammer effect. And the float valve can not effectively adjust the liquid level, so that the water tank is always kept in a full water level state. When the water consumption is low or zero, the water stored for a long time is easy to deteriorate due to the lack of new water for supplying, and the whole water quality in the water tank is seriously affected. Therefore, there is a need for a low cost ball float valve that reduces the water hammer effect, controls the level of the water in the tank, and improves the quality of the water in the tank.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art, and aims to provide a ball float valve which is low in cost, can reduce the water hammer effect, can control the liquid level in a water tank and improve the water quality in the water tank.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

The float valve comprises a valve body positioned in a water tank, wherein a start-stop control rod is connected to the valve body, and a fold line-shaped transmission rod is rotatably arranged at the other end of the start-stop control rod; the side wall of the water tank is fixedly connected with a liquid level control pipe, the top end of the liquid level control pipe is provided with a one-way valve, the transmission rod comprises a vertical outer rod section and an inner rod section, the outer rod section is positioned outside the liquid level control pipe, a connecting rod is movably connected between the top end of the outer rod section and the start-stop control rod, the inner rod section is inserted into the pipe from the bottom end of the liquid level control pipe, the top end of the inner rod section is provided with a floating ball, the bottom ends of the outer rod section and the inner rod section are connected through a compensation rod section, and the perforation aperture of the bottom end of the liquid level control pipe and the inner rod section in cooperation is larger than the outer diameter of the inner rod section; when the floating ball floats up to prop against the top end of the liquid level control pipe, the bottom end of the inner rod section is positioned outside the liquid level control pipe, and the top end of the outer rod section closes the start-stop control rod; at least two layers of fixing plates are vertically arranged outside the liquid level control pipe, and the outer rod sections penetrate through the fixing plates and are in sliding fit with the fixing plates; and a sealing rubber ring is arranged between the one-way valve and the liquid level control pipe.

Compared with the prior art, the utility model has the following beneficial effects:

The float valve has the function of controlling the liquid level by matching the liquid level control pipe with the transmission rod, has simple structure and convenient installation, and has low cost compared with the valve which is commercially available at present and controls the opening and closing of the electric valve by the electronic liquid level meter so as to realize the liquid level control. The perforation of liquid level control pipe bottom not only can restrict the sliding track of transfer line, and intraductal liquid all flows into the liquid level control pipe through this perforation moreover, consequently the liquid that flows into in the liquid level control pipe through this perforation can't form the surge to avoided the surge to lead to the frequent opening and the shutoff of this valve, but this valve control liquid level has also avoided frequent moisturizing to lead to this valve to open and close, and then has reduced the number of times that the water hammer produced, the effectual operating condition that has protected the ball-cock assembly, the durability is strong.

Drawings

FIG. 1 is a schematic illustration of the present utility model for replenishing water into a tank;

FIG. 2 is a schematic view showing the floating ball floating up after water is replenished into the water tank;

FIG. 3 is a schematic view showing the water level in the water tank rising to the point where the float ball abuts against the one-way valve;

FIG. 4 is a schematic view of the water tank water level drop in the present utility model;

FIG. 5 is a schematic view showing the water level in the water tank falling below the bottom end of the liquid level control tube;

FIG. 6 is a schematic diagram of the connection of the check valve and the liquid level control tube in the present utility model;

fig. 7 is a schematic structural view of a large-diameter hydraulic float valve.

Reference numerals:

The valve comprises a valve body 1, a start-stop control rod 2, a transmission rod 3, a fixing plate 4, a liquid level control pipe 5, a floating ball 6, a one-way valve 7, a sealing rubber ring 8, a connecting rod 9, a main valve 10, an outer rod section 31 and an inner rod section 32.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 6, a float valve capable of adjusting liquid level and reducing water hammer effect comprises a valve body 1 positioned in a water tank, wherein a start-stop control rod 2 is connected to the valve body 1, and a folded transmission rod 3 is rotatably arranged at the other end of the start-stop control rod 2; the side wall of the water tank is fixedly connected with a liquid level control pipe 5, the top end of the liquid level control pipe 5 is provided with a one-way valve 7, the transmission rod 3 comprises a vertical outer rod section 31 and an inner rod section 32, the outer rod section 31 is positioned outside the liquid level control pipe 5, a connecting rod 9 is movably connected between the top end of the outer rod section 31 and the start-stop control rod 2, the inner rod section 32 is inserted into the pipe from the bottom end of the liquid level control pipe 5, the top end of the inner rod section 32 is provided with a floating ball 6, the bottom ends of the outer rod section 31 and the inner rod section 32 are connected through a compensation rod section, and the perforation aperture matched with the bottom end of the liquid level control pipe 5 and the inner rod section 32 is larger than the outer diameter of the inner rod section 32; when the floating ball 6 floats up to prop against the top end of the liquid level control pipe 5, the bottom end of the inner rod section 32 is positioned outside the liquid level control pipe 5, and the top end of the outer rod section 31 closes the start-stop control rod 2.

Wherein, the outside vertical arrangement of liquid level control pipe 5 has two-layer stationary blade 4 at least, and outer pole section 31 all passes stationary blade 4 and with stationary blade 4 sliding fit. The stationary blade 4 of vertical arrangement can play the effect of direction, makes the outer pole section 31 of transfer line 3 remain vertical motion throughout when adjusting, simultaneously because swing joint has connecting rod 9 between outer pole section 31 and the start-stop control pole 2, the length difference accessible connecting rod 9 compensation between outer pole section 31 and the start-stop control pole 2 behind the outer pole section 31 downwardly moving avoids transfer line 3 wholly to produce the slope.

Wherein, be provided with sealed rubber ring 8 between check valve 7 and the liquid level control pipe 5, check valve 7 is used for controlling the circulation between air in the water tank and the liquid level control pipe 5, and the direction of admitting air of check valve 7 is by liquid level control pipe 5 to the water tank flow.

As shown in fig. 1, the water tank is replenished from an initial state, and at this time, the valve body 1 is in an open state, and the liquid level in the water tank is gradually increased. When the liquid level in the water tank rises to the bottom of the liquid level control pipe 5, water enters the liquid level control pipe 5 through the perforation at the bottom of the liquid level control pipe 5, and air in the liquid level control pipe 5 is discharged through the one-way valve 7.

As shown in fig. 2, after continuous water replenishment, the liquid level of the water tank rises, the liquid level in the liquid level control pipe 5 rises synchronously, the floating ball 6 moves upwards along with the liquid level under the buoyancy effect, meanwhile, the floating ball 6 drives the transmission rod 3 to move upwards, and in the process, the outer rod section 31 keeps moving vertically upwards along the track defined by the fixing piece 4.

As shown in fig. 3, the floating ball 6 rises to the top end of the liquid level control tube 5 under the buoyancy action and is propped against the one-way valve 7, the liquid level in the water tank reaches the set height, the outer rod section 31 pulls the start-stop control rod 2 to the highest position, and the valve body is closed to stop water supplement.

As shown in fig. 4, the water tank continuously supplies water outwards, the liquid level in the water tank drops, the outside air of the liquid level control pipe 5 presses down the one-way valve 7 and the sealing rubber ring 8 under the action of atmospheric pressure due to the sealing action of the one-way valve 7 and the sealing rubber ring 8, the outside air cannot enter the liquid level control pipe 5, partial vacuum is formed on the upper part of the liquid level control pipe 5, the liquid level in the liquid level control pipe 5 cannot synchronously drop along with the drop of the liquid level in the water tank, so the height of the floating ball 6 remains unchanged, and the valve body 1 remains in a closed state.

As shown in fig. 5, when the liquid level in the water tank drops below the bottom of the liquid level control pipe 5, air enters the pipe through the perforations of the bottom of the liquid level control pipe 5, water in the liquid level control pipe 5 is discharged, at this time, the floating ball 6 and the inner rod section 32 drop along with the water level in the pipe, the valve body 1 is opened, water replenishment is started into the water tank, and the above flow is circulated.

When the water replenishing pipe diameter is greater than or equal to DN100, linkage control is needed, as shown in FIG. 7, the main valve 10 of the hydraulic float valve is opened and closed by the main valve 10 controlled by the opening and closing of the original valve body, so that the original valve body of the hydraulic float valve is replaced by the valve body 1 in the embodiment, the liquid level control of water replenishing with large pipe diameter can be realized, and the damage to the pipeline and the valve caused by the water hammer effect during water replenishing with large pipe diameter can be effectively reduced because the water hammer effect of water replenishing with large pipe diameter is more destructive.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (1)

1. The utility model provides a but regulation liquid level and reduce ball float valve of water hammer effect, includes valve body (1) that are located the water tank, its characterized in that: a start-stop control rod (2) is connected to the valve body (1), and a fold line-shaped transmission rod (3) is rotatably arranged at the other end of the start-stop control rod (2); the side wall of the water tank is fixedly connected with a liquid level control pipe (5), the top end of the liquid level control pipe (5) is provided with a one-way valve (7), the transmission rod (3) comprises a vertical outer rod section (31) and an inner rod section (32), the outer rod section (31) is positioned outside the liquid level control pipe (5), a connecting rod (9) is movably connected between the top end of the outer rod section (31) and the start-stop control rod (2), the inner rod section (32) is inserted into the pipe from the bottom end of the liquid level control pipe (5), the top end of the inner rod section (32) is provided with a floating ball (6), the bottom ends of the outer rod section (31) and the inner rod section (32) are connected through a compensation rod section, and the perforation aperture of the bottom end of the liquid level control pipe (5) and the inner rod section (32) is larger than the outer diameter of the inner rod section (32); when the floating ball (6) floats to prop against the top end of the liquid level control pipe (5), the bottom end of the inner rod section (32) is positioned outside the liquid level control pipe (5), and the top end of the outer rod section (31) closes the start-stop control rod (2); at least two layers of fixing sheets (4) are vertically arranged outside the liquid level control tube (5), and the outer rod sections (31) penetrate through the fixing sheets (4) and are in sliding fit with the fixing sheets (4); a sealing rubber ring (8) is arranged between the one-way valve (7) and the liquid level control pipe (5).