CN219863104U - Stable adjustable vacuum suppressor - Google Patents

Abstract

The utility model discloses a stable adjustable vacuum suppressor, which comprises a shell, an upper valve body and a lower valve body, wherein the shell is a cylindrical shell with an opening at the bottom, the upper valve body and the lower valve body are annular bodies, the upper valve body is fixedly connected with the shell through a connecting rod, a filter layer is arranged on the upper valve body, an air pipe is arranged between the upper valve body and the lower valve body, a guide rod is arranged between the upper valve body and the lower valve body in the air pipe, a sealing plate is sleeved on the guide rod, the sealing plate seals the upper valve body, a limiting block is arranged on the guide rod, the sealing plate is arranged on the limiting block, a valve rod is arranged at the bottom of the sealing plate, an upper floating ball is arranged on the valve rod, an adjusting screw is arranged at the bottom of the upper floating ball, a lower floating ball and limiting nuts are sleeved on the adjusting screw, and the limiting nuts are distributed at two ends of the lower floating ball; compared with the prior art, the utility model has simple structure, no influence on the use due to the failure of the floating ball, good leakage prevention effect and capability of realizing the adjustment of the ratio of gas to liquid in the tank.

Description

Stable adjustable vacuum suppressor

Technical Field

The utility model belongs to the field of water supply, and particularly relates to a stable adjustable vacuum inhibitor without negative pressure equipment parts.

Background

The vacuum inhibitor is mainly used on municipal tap water pipe network secondary pressurizing water supply equipment and is used for inhibiting negative pressure generated in a water supply system and keeping the pressure balance of the tap water pipe network, and the working principle of the vacuum inhibitor is that the vacuum inhibitor is arranged at the top of a non-negative pressure tank, and when the water supply quantity is abundant, the air in the non-negative pressure tank is discharged through the vacuum inhibitor; when the tank is full of water, the floating ball assembled in the vacuum inhibitor is subjected to buoyancy of water, and floats upwards to block the air inlet and outlet, so that the sealing of the water supply pipeline is realized; when the water quantity is insufficient to meet the consumption, the liquid level in the tank is reduced, the floating ball falls, the air inlet and outlet channels are opened, external air enters the tank, the closed environment in the pipeline is broken, negative pressure is effectively restrained from being generated in the pipe network, and the problem that users in a low area are robbed in water is solved.

The traditional vacuum suppressor mostly adopts the free movable floater of installation in the air vent lower part, through the gravity of floater and receive the buoyancy of water to control the business turn over of jar body, at present in order to ensure buoyancy, the floater wall thickness often is thinner, its bearing capacity often is not strong, the floater is the circumstances that the fracture was warp by water pressure, and because the mode that adopts the floater to realize opening and close business turn over passageway, need place the sphere boss that is used for realizing with floater contact seal, this has taken a large amount of ventilation spaces, greatly reduced the business turn over volume under the same pipe diameter, there are the front end equipment condition such as inefficacy in addition, produce negative pressure in the jar, the vacuum suppressor inhales a large amount of outside air, impurity in the air easily mixes in the jar water, produce the pollution to the quality.

Aiming at the problems, the Chinese patent with the patent number 201510664268X discloses a double-seal non-negative pressure water supply vacuum inhibitor, which discloses that an air filter is arranged at an air passage opening to filter inlet air, and a horizontal disc is adopted to replace a floating ball to realize opening and closing of the air passage.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the stable adjustable vacuum inhibitor which can effectively avoid the damage of the floating ball, does not influence the use of the floating ball even if the floating ball is damaged, has good air passage sealing effect and large ventilation volume of the lower air passage with the same pipe diameter and can effectively filter impurities in the air.

The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a stable form adjustable vacuum suppressor, which comprises an outer shell, go up valve body and lower valve body, the shell is bottom open-ended cylindrical casing, go up valve body and lower valve body and be the annular body, go up the valve body and arrange in the shell, lower valve body is located the valve body below, go up the valve body and be connected fixedly through connecting rod and shell, be equipped with the filter layer on the valve body, be equipped with the trachea between going up valve body and the lower valve body, the trachea both ends are connected fixedly with last valve body and lower valve body respectively, be equipped with the guide bar between upper valve body and the lower valve body in the trachea, the guide bar both ends are connected fixedly with last valve body and lower valve body respectively, the closing plate has been cup jointed on the guide bar, the closing plate seals up the valve body, be equipped with the stopper on the guide bar, the closing plate is arranged in the stopper, be equipped with the valve rod bottom the closing plate, be equipped with the floater on the valve rod, upward be equipped with adjusting screw on the floater bottom, adjusting screw cup joint down floater and stop nut, the stop nut distributes in lower floater both ends, the shell, go up valve body, lower valve body, closing plate, the valve rod, the upper floater and lower floater are coaxial.

Optionally, a sealing plate is arranged on the sealing plate.

The utility model adopts the use mode and the principle:

when the sealing device is used, the sealing device is fixed at the top of the non-negative pressure tank through bolts, and an annular sealing gasket can be arranged between the lower valve body and the outer wall of the non-negative pressure tank, so that the overall tightness is improved;

when the liquid level rises to reach the position of the lower floating ball, the lower floating ball pushes the valve rod to move upwards, the sealing plate contacts with the bottom of the upper valve body, the upper valve body is sealed, and the discharge of the gas in the tank is blocked;

when the raw water is insufficient to meet the use requirement of water supply equipment and the input quantity is insufficient, the liquid level in the negative pressure tank is not reduced, the sealing plate moves downwards under the action of gravity, the limiting block on the guide rod limits the downwards moving quantity of the sealing plate, the upper valve body is smooth, external air enters the inner cavity of the shell through a gap between the valve bodies, and is filtered to impurities in the air by the filtering layer arranged on the upper valve body, so that water pollution in the tank is prevented, and then the external air sequentially enters the tank body through the upper valve body, the air pipe and the lower valve body, so that negative pressure in the tank is prevented, and the influence on the water pressure of the raw water is avoided;

the position of the lower floating ball on the adjusting screw rod can be freely adjusted through the limit nut, so that a longer distance is formed between the lower floating ball and the upper valve body, the phenomenon of water seepage caused by large water flow is prevented, and meanwhile, the gas-liquid ratio in the non-negative pressure tank can be indirectly adjusted through the mode;

when the lower floating ball fails, the liquid level rises, the upper floating ball can still provide buoyancy to push the sealing plate to close the air inlet and the air outlet, and under extreme conditions, if the upper floating ball and the lower floating ball fail, the sealing plate can still be pushed by water pressure to move upwards to close the air inlet and the air outlet, so that multiple protection and leakage prevention are realized.

Compared with the prior art, the utility model has the following beneficial effects: the utility model has simple structure, no influence on the use due to the failure of the floating ball, good leakage prevention effect and capability of realizing the adjustment of the ratio of gas to liquid in the tank.

Drawings

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

Description of the embodiments

The utility model is further described in the following with reference to fig. 1, and the stable type adjustable vacuum suppressor comprises a shell 1, an upper valve body 2 and a lower valve body 3, wherein the shell is a cylindrical shell with an opening at the bottom, the upper valve body and the lower valve body are annular bodies, the upper valve body is arranged in the shell, the lower valve body is arranged below the upper valve body, the upper valve body is fixedly connected with the shell through a connecting rod 4, one end of the connecting rod is welded on the upper valve body, the other end of the connecting rod is provided with threads, the upper valve body is penetrated through the shell and is fixedly connected with the shell through a nut, the connecting rod is distributed on the upper valve body at intervals along the circumference of the upper valve body, a filter layer 5 is arranged on the upper valve body, the connecting rod on the upper valve body penetrates through the filter layer and is fixedly arranged between the upper valve body and the lower valve body, two ends of the air pipe are respectively connected and fixedly connected with the upper valve body and the lower valve body, a boss is arranged at the upper end of the air pipe, the upper end of the air pipe is in threaded connection with the upper valve body, the lower end of the air pipe is integrally formed with the lower valve body, a guide rod 7 is arranged between the upper valve body and the lower valve body in the air pipe, two ends of the guide rod are respectively fixedly connected with the upper valve body and the lower valve body, the lower end of the guide rod is in threaded connection with the lower valve body, the upper end of the guide rod is arranged in an annular groove at the bottom of the upper valve body, the guide rods are distributed at intervals along the circumference of the lower valve body, a sealing plate 8 is sleeved on the guide rod, the upper valve body is sealed by the sealing plate, a limiting block 9 is arranged on the guide rod, a sealing plate 15 is arranged on the sealing plate, the sealing plate is fixed on the sealing plate through screws, a valve rod 10 is welded at the bottom of the sealing plate, an upper floating ball 11 is arranged on the valve rod, the upper floating ball is in threaded connection with the valve rod, an adjusting screw 12 is arranged at the bottom of the upper floating ball, a lower floating ball 13 and a limiting nut 14 are sleeved on the adjusting screw, the limit nuts are distributed at two ends of the lower floating ball, and the shell, the upper valve body, the lower valve body, the sealing plate, the valve rod, the upper floating ball, the adjusting screw and the lower floating ball are coaxial.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (2)

1. The utility model provides a adjustable vacuum inhibitor of stable form, includes shell (1), goes up valve body (2) and lower valve body (3), its characterized in that: the shell is a cylindrical shell with an opening at the bottom, the upper valve body and the lower valve body are annular bodies, the upper valve body is arranged in the shell, the lower valve body is positioned below the upper valve body, the upper valve body is fixedly connected with the shell through a connecting rod (4), a filter layer (5) is arranged on the upper valve body, an air pipe (6) is arranged between the upper valve body and the lower valve body, two ends of the air pipe are respectively fixedly connected with the upper valve body and the lower valve body, a guide rod (7) is arranged between the upper valve body and the lower valve body in the air pipe, two ends of the guide rod are respectively fixedly connected with the upper valve body and the lower valve body, the sealing plate (8) has been cup jointed on the guide bar, the valve body is gone up in sealing plate seal, be equipped with stopper (9) on the guide bar, the sealing plate is arranged in on the stopper, the sealing plate bottom is equipped with valve rod (10), be equipped with on the valve rod floater (11), it is equipped with adjusting screw (12) to go up the floater bottom, lower floater (13) and stop nut (14) have been cup jointed on the adjusting screw, stop nut distributes at floater both ends down, the shell, go up the valve body, lower valve body, the sealing plate, the valve rod, go up floater, adjusting screw and lower floater are coaxial.

2. The regulated, tunable vacuum inhibitor of claim 1, wherein: the sealing plate is provided with a sealing glue plate (15).