WO2023045174A1

WO2023045174A1 - Autonomous pressure relief high-protection pressure tank for water pump

Info

Publication number: WO2023045174A1
Application number: PCT/CN2021/143620
Authority: WO
Inventors: 连文杰; 连伟杰; 王田田
Original assignee: 台州天扬机电有限公司
Priority date: 2021-09-22
Filing date: 2021-12-31
Publication date: 2023-03-30
Also published as: CN215444304U

Abstract

An autonomous pressure relief high-protection pressure tank (1) for a water pump, comprising: a filter screen (4) fixed in the pressure tank (1), a movable rod (5) being movably provided at the lower edge of the filter screen (4); a fixed rod (7) fixed to the upper middle position of the filter screen (4), an expansion pad (8) being pasted to the pressure tank (1) outside the fixed rod (7); a movable column (10) movably penetrating through the top of the pressure tank (1), a second spring (11) being wound on the outer side of the movable column (10); and a pressure relief hole (13) formed on the inner top surface of the pressure tank (1), a connection cavity (14) being reserved at the side wall of the top of the pressure tank (1). When the pressure in the pressure tank is too high, an automatic pressure relief operation can be achieved by the pressure tank to ensure the normal use of the pressure tank.

Description

A self-relieving high-protection pressure tank for water pumps

technical field

The utility model relates to the technical field of pressure tanks, in particular to a pressure tank with independent pressure relief and high protection for water pumps.

Background technique

A pressure tank is a device used to balance water volume and pressure. It is often used to connect with water pumps. During the use of the pressure tank, a certain pressure will be generated inside it. In order to ensure the normal operation of the equipment, when the pressure tank is over pressure When the pressure is large, it needs to be released in time. For example, a high-safety pressure tank with a publication number of CN212772621U, including the pressure tank body... realizes the uninterrupted water supply of the pressure tank, and does not need to switch the control valve frequently, effectively prolonging the service life of the pressure tank , the use effect is better, and through the way of physical pressure relief, the safety performance during the use of the pressure tank is effectively improved. However, the pressure tank with high safety still has the following disadvantages in actual use:

The traditional pressure tank lacks the structure to automatically release the pressure, and in the process of releasing the pressure, it is prone to pressure backflow and the phenomenon that the outside air enters the inside of the pressure tank, which will cause the pollution of the liquid in the pressure tank and affect the normal discharge of subsequent pressure. In view of the above problems, it is urgent to carry out innovative design on the basis of the original pressure tank.

Utility model content

The purpose of this utility model is to provide a self-relieving pressure tank with high protection for water pumps, in order to solve the above-mentioned background technology, it is proposed that the traditional pressure tank lacks a structure for automatically releasing pressure, and in the process of releasing pressure, it is easy to appear pressure Backflow, as well as the phenomenon that outside air enters the inside of the pressure tank, will cause the pollution of the liquid in the pressure tank and affect the normal discharge of subsequent pressure.

In order to achieve the above purpose, the utility model provides the following technical solutions: a pressure tank with independent pressure relief and high protection for water pumps, which is provided with a pressure tank, and the two sides of the pressure tank are respectively fixed with water guide pipes and drain pipes;

include:

A filter screen is fixed inside the pressure tank, a movable rod is movably arranged at the lower edge of the filter screen, and one end of the movable rod is connected to the filter screen through a first spring;

The fixed rod is fixed at the upper middle position of the filter screen, and the pressure tank outside the fixed rod is pasted with an expansion pad, and the inner top of the pressure tank is provided with a fixed cavity;

The movable column runs through the top of the pressure tank, the outer side of the movable column is wound with a second spring, and the lower end of the movable column is fixed with a limiting plate;

A pressure relief hole is opened on the inner top surface of the pressure tank, and a connection cavity is reserved on the top side wall of the pressure tank.

Preferably, the two ends of the filter screen are respectively located above the water guide pipe and below the drain pipe, and the movable rod and the filter screen form a rotating structure. While the filter screen is filtering the liquid, when the liquid hits the movable rod, it can drive turn.

Preferably, the cross-section of the movable rod is an "L"-shaped structure, and the other end of the movable rod extends to the inside of the aqueduct, and the movable rod is made of rubber material. When the movable rod is rotated, it can be moved in the aqueduct, which can Avoid the blockage of water flow, and play the role of antifreeze.

Preferably, the bottom of the movable column is in contact with the surface of the expansion pad, and the movable column and the pressure tank are longitudinally slidably connected, and the movable distance of the movable column is equal to the distance from the air inlet to the highest point of the connection chamber, when the expansion pad After receiving pressure, it can bulge and push the movable column to slide on the pressure tank. After the movable column moves to the maximum, it can just realize the communication between the air inlet hole and the connecting cavity, so as to release the subsequent pressure.

Preferably, the air intake holes are arranged on both sides of the movable column, and an exhaust channel is provided inside the movable column, and the exhaust channel communicates with the air intake hole, and the connection between the air intake hole and the air intake hole can be realized after the movable column moves. The communication of the cavity, and then facilitate the pressure from the pressure relief hole into the connection cavity, and then enter the air intake hole exhaust channel to be discharged.

Preferably, the moved column communicates with the connection chamber through the air inlet hole, and the connection chamber communicates with the inside of the pressure tank through the pressure relief hole, and the top of the fixed rod extends to the upper end of the exhaust passage, and the pressure The pressure in the tank can enter the connection cavity through the pressure relief hole, and finally be discharged through the air inlet hole and the exhaust channel, while the end of the fixed rod is always inside the exhaust channel, which can not only ensure the stable lifting of the movable column, but also can Prevent outside air from entering the pressure tank.

Compared with the prior art, the beneficial effect of the utility model is: the self-relieving pressure tank with high protection for the water pump can realize the automatic pressure relief operation when the pressure inside the pressure tank is too high to ensure the normal operation of the pressure tank. Use, and during and after the pressure relief process, it can avoid the phenomenon of pressure backflow or outside air entering the pressure tank;

1. When the water flow of the aqueduct hits the movable rod, it can drive the movable rod to rotate, and then realize the movable rod to move in the aqueduct, which can avoid the phenomenon of blockage of the aqueduct, and at the same time can play the antifreeze effect of the aqueduct;

2. When the pressure in the pressure tank is too high, it can drive the expansion pad to bulge, and then push the movable column to slide on the pressure tank, and realize the communication between the air inlet hole and the connecting cavity, so that the pressure in the pressure tank can be released through the pressure release. Hole, connection cavity, air intake hole and exhaust channel are discharged, and after the expansion pad returns to the horizontal position, the elasticity of the second spring can disconnect the connection between the air intake hole and the connection cavity, and drive the fixing rod to extend into the exhaust channel. , to block its interior.

Description of drawings

Fig. 1 is the schematic diagram of the front section structure of the utility model;

Fig. 2 is the schematic diagram of the sectional structure at A place in Fig. 1 of the utility model;

Fig. 3 is a schematic diagram of the front view structure of the connection cavity of the present invention;

Fig. 4 is a schematic diagram of the front section structure of the movable column of the present invention;

Fig. 5 is a schematic diagram of the structure of the movable column of the present invention after it moves.

In the figure: 1, pressure tank; 2, water guide pipe; 3, drainage pipe; 4, filter screen; 5, movable rod; 6, first spring; 7, fixed rod; 8, expansion pad; 9, fixed cavity; 10 1. Movable column; 101. Air intake hole; 102. Exhaust channel; 11. Second spring; 12. Limiting plate; 13. Pressure relief hole; 14. Connection cavity.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-5, the utility model provides a technical solution: a self-relieving and highly protective pressure tank for water pumps, which is provided with a pressure tank 1, and the two sides of the pressure tank 1 are respectively fixed with water guide pipes 2 and Drain 3;

include:

The filter screen 4 is fixed inside the pressure tank 1, the lower edge of the filter screen 4 is provided with a movable rod 5, and one end of the movable rod 5 is connected to the filter screen 4 through the first spring 6;

The fixed rod 7 is fixed at the upper middle position of the filter screen 4, and the pressure tank 1 on the outside of the fixed rod 7 is pasted with an expansion pad 8, and the inner top of the pressure tank 1 is provided with a fixed cavity 9;

The movable column 10 runs through the top of the pressure tank 1, the outer side of the movable column 10 is wound with a second spring 11, and the lower end of the movable column 10 is fixed with a limiting plate 12;

The pressure relief hole 13 is opened on the inner top surface of the pressure tank 1 , and a connection cavity 14 is reserved on the top side wall of the pressure tank 1 .

The two ends of the filter screen 4 are respectively located above the water guide pipe 2 and below the drain pipe 3, and the movable rod 5 and the filter screen 4 form a rotating structure; the cross section of the movable rod 5 is an "L" shaped structure, and the other part of the movable rod 5 One end extends to the inside of the water guide pipe 2, and the movable rod 5 is made of rubber;

As shown in Figure 1-2, when the water flow in the pressure tank 1 impacts the movable rod 5, it can drive it to rotate, and through the resilience of the first spring 6, it can drive the movable rod 5 to move back and forth, and stir in the aqueduct 2 , can avoid pipe blockage, and can play the role of antifreezing of water guide pipe 2 at the same time, because the movable rod 5 is made of rubber material, so it can be deformed without affecting its activity;

The bottom of the movable column 10 is in contact with the surface of the expansion pad 8, and the movable column 10 and the pressure tank 1 are longitudinally slidably connected, and the movable distance of the movable column 10 is equal to the distance from the air inlet 101 to the highest point of the connecting cavity 14; The air hole 101 is arranged on both sides of the movable column 10, and the inside of the movable column 10 is provided with an exhaust passage 102, and the exhaust passage 102 communicates with the air inlet 101; the movable column 10 after moving passes through the air inlet 101 and The connecting cavity 14 is connected, and the connecting cavity 14 communicates with the inside of the pressure tank 1 through the pressure relief hole 13, and the top of the fixing rod 7 extends to the upper end of the exhaust passage 102;

As shown in Figure 1 and Figure 3-5, when the internal pressure of the pressure tank 1 is too high, it can drive the expansion pad 8 to bulge, and push the movable column 10 to slide on the pressure tank 1, and the movable column 10 after sliding is limited plate 12, so that the communication between the air inlet 101 and the connection chamber 14 can be realized, and the pressure in the pressure tank 1 can enter the connection chamber 14 through the pressure relief hole 13, and then be discharged from the exhaust passage 102 through the air inlet 101 , play the operation of releasing the pressure on the pressure tank 1, and then ensure the normal use of the pressure tank 1. After the pressure is released, the expansion pad 8 returns to a horizontal state, and the resilience of the second spring 11 can drive the movable column 10 to return to its original state. position, and block the air inlet 101 and the connecting cavity 14, and when the movable column 10 moves downward, it can drive the top of the fixed rod 7 to move to the top of the exhaust passage 102, thereby blocking the exhaust passage 102. Avoid external pressure backflow into the pressure tank 1, and prevent outside air from entering the pressure tank 1 to cause pollution.

Working principle: as shown in Figure 1-5, firstly, while the filter screen 4 in the pressure tank 1 is filtering, when the water flow hits the movable rod 5, it can drive it to rotate, and the movable rod 5 can stir in the water guide pipe 2, which plays a role The anti-clogging of the water guide pipe 2 can drive the expansion pad 8 to bulge when the internal pressure of the pressure tank 1 is too high, and the bulged expansion pad 8 can push the movable column 10 to slide, and realize the communication between the air inlet 101 and the connecting cavity 14, In this way, the pressure in the pressure tank 1 can enter the connection cavity 14 through the pressure relief hole 13, and finally be discharged through the exhaust passage 102, so as to ensure that the internal pressure of the pressure tank 1 is normal, thereby realizing the normal operation of the pressure tank 1 and improving the service life. After the internal pressure of the pressure tank 1 is released, the air inlet 101 and the connecting chamber 14 can be blocked, and the fixed rod 7 is driven to extend into the exhaust passage 102 to block the interior of the pressure tank for subsequent pressure release. .

Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art can modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the utility model.

Claims

A self-relieving and highly protective pressure tank for water pumps, which is provided with a pressure tank (1), and the two sides of the pressure tank (1) are respectively fixed with water guide pipes (2) and drain pipes (3);

It is characterized by including:

The filter screen (4) is fixed inside the pressure tank (1), the lower edge of the filter screen (4) is movably provided with a movable rod (5), and one end of the movable rod (5) passes through the first spring (6) and filter screen (4) are interconnected;

The fixed rod (7) is fixed on the upper middle position of the filter screen (4), and the pressure tank (1) on the outside of the fixed rod (7) is pasted with an expansion pad (8), and the pressure tank (1) The inner top is provided with a fixed cavity (9);

The movable column (10) is movable through the top of the pressure tank (1), the outer side of the movable column (10) is wound with a second spring (11), and the lower end of the movable column (10) is fixed with a limiting plate ( 12);

A pressure relief hole (13) is provided on the inner top surface of the pressure tank (1), and a connection cavity (14) is reserved on the top side wall of the pressure tank (1).
According to claim 1, a self-relieving high-protection pressure tank for water pumps is characterized in that: the two ends of the filter screen (4) are respectively located above the water guide pipe (2) and the drain pipe (3) ), and the movable rod (5) and the filter screen (4) form a rotating structure.
According to claim 1, a self-relieving high-protection pressure tank for water pumps is characterized in that: the cross-section of the movable rod (5) is an "L"-shaped structure, and the other part of the movable rod (5) One end extends to the inside of the water guide pipe (2), and the movable rod (5) is made of rubber material.
A self-pressure-relieving high-protection pressure tank for water pumps according to claim 1, characterized in that: the bottom of the movable column (10) is in contact with the surface of the expansion pad (8), and the movable column ( 10) and the pressure tank (1) are vertically slidingly connected, and the movable distance of the movable column (10) is equal to the distance from the air inlet (101) to the highest point of the connecting chamber (14).
The self-relieving high-protection pressure tank for water pumps according to claim 4, characterized in that: the air intake holes (101) are arranged on both sides of the movable column (10), and the movable column (10) ) is provided with an exhaust passage (102), and the exhaust passage (102) communicates with the air inlet (101).
The self-relieving high-protection pressure tank for water pumps according to claim 5, characterized in that: the moved movable column (10) is connected to the connection chamber (14) through the air inlet hole (101) and the connecting cavity (14) communicates with the inside of the pressure tank (1) through the pressure relief hole (13), and the top of the fixing rod (7) extends to the upper end of the exhaust passage (102).