CN110886345A

CN110886345A - Pressure tank

Info

Publication number: CN110886345A
Application number: CN201911266980.9A
Authority: CN
Inventors: 陈仁德
Original assignee: WENLING HUANLI ELECTRIC CO Ltd
Current assignee: WENLING HUANLI ELECTRIC CO Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-03-17

Abstract

The invention provides a pressure tank, and belongs to the technical field of pressure tanks. It has solved the easy problem of damaging of current pressure tank gasbag. This overhead tank includes the shell and sets up the gasbag in the shell, and the gasbag separates into air cavity and the water cavity that each other does not communicate with the inside cavity of shell, is equipped with air cock and water supply connector in the shell, and the air cock is linked together with the air cavity, and water supply connector is linked together with the water cavity, has the first portion of leaning on that the protrusion set up on the lateral wall of gasbag, and first portion of leaning on corresponds the setting with the air cock, and the second that has the protrusion setting on the inside wall of gasbag leans on portion, and the second is leaned on portion and is corresponded the setting with water supply connector. The pressure tank has the advantages of difficult damage of the air bag and long service life.

Description

Pressure tank

Technical Field

The invention belongs to the technical field of pressure tanks, relates to a pressure tank, and particularly relates to a water pump pressure tank.

Background

The pressure tank is used in the closed water circulation system, plays a role in balancing water quantity and pressure, and avoids frequent opening of a safety valve and frequent water replenishing of an automatic water replenishing valve. The water pump is the equipment commonly used for pumping water, and water pressure inevitably has undulantly when the water pump is drawing water, consequently often sets up the overhead tank on the water pump for balanced water pressure prevents the vibrations of water pump cylinder body, improves the working life of water pump.

Conventional pressure tanks are disclosed in, for example, chinese patent literature documents [ application No.: 201420680367.8, respectively; authorization notice number: CN204253345U ], which comprises a tank body and a leather bag, wherein the open end of the tank body is provided with a flange cover for fixing the leather bag, and the other end is provided with an air nozzle hole for installing an air nozzle; the Faraday cover comprises a cover body and a flange extending around the cover body, and an interface is arranged on the outward facing side of the cover body; the opening of the leather bag extends out of a leather bag edge matched with the flange, and the flange of the flange cover is matched with the leather bag edge and used for sleeving the leather bag in the tank body; the air faucet structure also comprises a gasket which is arranged on the inner wall of the tank body and is positioned at the position of the air faucet hole, and the gasket is provided with a mounting hole matched with the air faucet.

The pressure tank with the structure protects the leather bag by arranging the gasket, so that the leather bag is not easy to damage. However, when the tank body is filled with gas and the gas pressure is higher, the leather bag is pressed into the joint by the gas pressure, and the leather bag and the joint can rub to damage the leather bag; meanwhile, the problem that the leather bag is pressed into the air faucet by water pressure when the leather bag is filled with water and the water pressure is high exists, and the leather bag is damaged due to friction between the leather bag and the air faucet; the bladder is damaged, which can lead to a reduction in the service life of the pressure tank.

Disclosure of Invention

The invention aims to provide a pressure tank aiming at the problems in the prior art, and solves the technical problems of how to make an air bag not easy to damage and prolonging the service life of the pressure tank.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a pressure tank, includes shell and the gasbag of setting in the shell, the gasbag is separated into air cavity and the water cavity that each other does not communicate with the inside cavity of shell, be equipped with air cock and water supply connector in the shell, the air cock is linked together with the air cavity, water supply connector is linked together with the water cavity, a serial communication port, the first portion of supporting that leans on that has the protrusion setting on the lateral wall of gasbag, first portion of supporting corresponds the setting with the air cock, the second that has the protrusion setting on the inside wall of gasbag leans on portion, the second supports and leans on portion and water supply connector to correspond the setting.

The air bag is elastic and can stretch out and draw back, but has certain hardness, the first abutting part and the second abutting part both have certain hardness, the air cavity is inflated through the air tap, the second abutting part abuts against the shell and blocks the water inlet connector after the air cavity is filled with air, the air bag is prevented from being pressed into the water inlet connector by the air to damage the air bag, and the air bag is not easy to damage; fill water to the water cavity through the connector of intaking, fill in the water cavity and support to lean on the portion and can support and block the air cock by the first portion of leaning on after filling water, prevent that the gasbag from being damaged the gasbag by water pressure air inlet nozzle, make the gasbag not fragile. Through setting up first support portion and the second support portion, make the gasbag can not enter into air cock and water supply connector, the gasbag is not fragile to improve the life of overhead tank.

In the pressure tank, the first abutting part and the second abutting part are arranged coaxially, the connecting point of the first abutting part and the air bag is the same as the connecting point of the second abutting part and the air bag, and the first abutting part, the second abutting part and the air bag are of an integrated structure. This kind of structure can improve first support and support the intensity that supports portion and second and support the portion, makes first support simultaneously support portion and second support and support the more even of pressure when portion pressurized, and first support supports portion and second and supports the portion and can not deviate from the position, makes the gasbag can not enter into air cock and water supply connector, and the gasbag is not fragile to improve pressure tank's life.

In the pressure tank of the above-described type, the air bag portion is recessed inward to form a housing chamber, and the first abutting portion is located in the housing chamber. The gasbag itself has certain hardness, has memory, can the reconversion, and the rational utilization space, only when the water pressure in the water cavity is enough big, just can the protrusion support and shutoff air cock by the portion of supporting, and during normal condition, the first portion of supporting can not mistake shutoff air cock of supporting, guarantees that the overhead tank is in normal operating condition.

In the pressure tank of the above type, the outer shell includes a tank body and a tank cover both made of a plastic material, and the edge of the opening of the air bag has a fixing seal portion in an annular shape, the fixing seal portion being embedded between the tank body and the tank cover, and the air bag is fixedly disposed in the outer shell by passing a fastening member through the tank body and the tank cover and locking. The jar body and cover are made by plastic materials, fix through the fastener like the cooperation of bolt and nut, and pressure tank equipment is convenient, and jar body and cover junction need not weld, can not cause the life that the damage influences the pressure tank because of the welding probably to the gasbag.

In a foretell pressure tank, a plurality of through-hole has in the cover, the internal diameter of through-hole is less than water supply connector's internal diameter, and is all the through-hole all is located the region that water supply connector encloses, the second supports to lean on the portion to be cylindric or frustum form, the second supports to lean on the portion can shutoff all through-holes. Set up the through-hole and make netted being equivalent to with water supply connector's inner, the part between two adjacent through-holes can support the second and support to lean on the portion, make the second support to lean on that the portion can be better to support and lean on the pot cover, the second supports to lean on a non-deformable, prevents that the gasbag from being pressed into water supply connector and damaging, and the gasbag is not fragile to improve the life of overhead tank.

In the pressure tank, the inner side wall of the tank cover is also provided with a plurality of reinforcing ribs radiating from the middle to the periphery, the inner ends of the reinforcing ribs are positioned at the edge of the circular arrangement area of the through hole, and the second abutting part can be positioned between the inner ends of the reinforcing ribs. The strengthening rib is firstly played the effect of reinforcing cover intensity, and the strengthening rib is secondly to leaning on the effect that the portion played the location to the second, prevents that the second from leaning on the portion and deviating from the settlement position when shutoff water supply connector, prevents that the gasbag from being pressed into water supply connector and damaging, and the gasbag is not fragile to improve the life of overhead tank.

In the pressure tank, the tank cover is provided with a recessed annular fixing groove, the tank body is provided with a protruding annular compression ring, the fixed sealing part is embedded in the fixing groove, the fixed sealing part is provided with an annular compression groove, and the compression ring is embedded in the compression groove. The structure improves the fixing firmness degree of the air bag, prevents the air bag from falling off and improves the sealing property.

In an above-mentioned overhead tank, the border in fixed sealing outside has the sand grip that a plurality of interval set up and the arch sets up, the sand grip is embedded into jar body. The setting of sand grip improves the sealing area of fixed sealing portion, can improve the fixed firm degree of gasbag, makes the gasbag can not drop, and this kind of structure of sand grip cooperatees with the jar body simultaneously, can not disturbed when the installation, can not blocked.

In the pressure tank of the above-mentioned type, the groove bottom of the fixing groove has a protruding sealing strip, which can be inserted into the fixing seal. The sealing performance is improved by the arrangement of the sealing strip.

In the above pressure tank, the first abutting portion is cylindrical or frustum-shaped, the air tap portion is located in the air cavity, and a surface of the air tap portion facing the first abutting portion is a plane. Improve first support portion and lean on the stability when leaning on, prevent that the gasbag from being pressed into the air cock and damaging to improve pressure tank's life.

Compared with the prior art, the pressure tank provided by the invention has the following advantages:

1. this overhead tank supports and leans on the portion through setting up first support and the second, prevents that the gasbag from being pressed air inlet cock and water inlet joint, and the gasbag is not fragile to improve overhead tank's life.

2. This overhead tank's first support portion and second support and support the setting of portion symmetry at the tow sides of gasbag, make first support portion and second support and support the more even of pressure when portion pressurized, first support portion and second support and support the portion and can not deviate the settlement position, make the gasbag can not enter into air cock and water supply connector, the gasbag is not fragile to improve overhead tank's life.

3. The tank body and the tank cover of the pressure tank are made of plastic materials, the joint of the tank body and the tank cover does not need to be welded, and the service life of the pressure tank cannot be influenced by damage to the air bag caused by welding.

Drawings

Fig. 1 is a sectional view of the entire structure of the pressure tank.

Fig. 2 is a schematic view of the overall structure of the present pressure tank bladder.

Fig. 3 is a schematic view of the whole structure of the pressure tank cover.

In the figure, 1, a housing; 11. a tank body; 12. a can lid; 13. a through hole; 14. reinforcing ribs; 15. fixing grooves; 16. a compression ring; 17. a sealing strip; 2. an air bag; 21. a fixed seal portion; 22. a compaction groove; 23. a convex strip; 3. an air cavity; 4. a water chamber; 5. an air tap; 6. a water inlet joint; 7. a first abutting portion; 8. a second abutting portion; 9. an accommodating chamber; 10. a fastener.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the pressure tank comprises a housing 1, an air bag 2, an air tap 5 and a water inlet connector 6, wherein the housing 1 comprises a tank body 11 and a tank cover 12 which are both made of plastic materials.

The first abutting portion 7 with the protruding setting is arranged on the outer side wall of the air bag 2, the second abutting portion 8 with the protruding setting is arranged on the inner side wall of the air bag 2, and the first abutting portion 7, the second abutting portion 8 and the air bag 2 are of an integrated structure. As shown in FIG. 2, the airbag 2 is partially recessed inward to form a receiving cavity 9, the first abutting portion 7 is located in the receiving cavity 9, the first abutting portion 7 and the second abutting portion 8 are coaxially arranged, and the connecting point of the first abutting portion 7 and the airbag 2 is the same as the connecting point of the second abutting portion 8 and the airbag 2, i.e. the first abutting portion 7 and the second abutting portion 8 are located on the front and back sides of the airbag 2 and symmetrically arranged.

Gasbag 2 is fixed to be set up in shell 1, gasbag 2 separates into air cavity 3 and water cavity 4 that each other does not communicate with the inside cavity of shell 1, be equipped with air cock 5 and water supply connector 6 in the shell 1, air cock 5 is linked together with air cavity 3, water supply connector 6 is linked together with water cavity 4, first support portion 7 corresponds the setting with air cock 5, the second supports portion 8 and water supply connector 6 and corresponds the setting, air cock 5 part is arranged in air cavity 3, and the first face of supporting portion 7 that supports of air cock 5 this part orientation is the plane. In this embodiment, the first abutting portion 7 is cylindrical, the second abutting portion 8 is frustum-shaped, and in actual production, the first abutting portion 7 is frustum-shaped and the second abutting portion 8 is cylindrical.

Specifically, the edge of the opening of the airbag 2 has an annular fixed sealing portion 21, the fixed sealing portion 21 has an annular pressing groove 22, and the edge outside the fixed sealing portion 21 has raised ribs 23 arranged at intervals, in this embodiment, the number of the raised ribs 23 is sixteen, and in actual production, the number of the raised ribs 23 may be ten or twenty. The can lid 12 has a recessed annular fixing groove 15, the groove bottom of the fixing groove 15 has a protruding sealing strip 17, the can body 11 has a protruding annular clamp ring 16, a fixing seal portion 21 is embedded in the fixing groove 15, the clamp ring 16 is embedded in the clamp groove 22, the convex strip 23 is embedded in the can body 11, the fixing seal portion 21 is embedded and fixed between the can body 11 and the can lid 12 by a fastening member 10 such as a combination of a bolt and a nut or a rivet passing through the can body 11 and the can lid 12 and locking, and the sealing strip 17 can be embedded in the fixing seal portion 21.

In the present embodiment, as shown in fig. 3, seven through holes 13 are formed in the can cover 12, and eight reinforcing ribs 14 radiating from the middle to the periphery are formed on the inner side wall of the can cover 12, in actual production, the number of the through holes 13 may be five or ten, and the number of the reinforcing ribs 14 may be five or twelve. The internal diameter of through-hole 13 is less than the internal diameter of water supply connector 6, and all through-holes 13 are circular arrangement, and all through-holes 13 all are located the regional of enclosing of water supply connector 6, and the inner of strengthening rib 14 is located through-hole 13 and is the border department that circular arrangement is regional, and second support portion 8 can be located between the inner of strengthening rib 14.

This overhead tank mainly uses on the water pump, and the overhead tank is connected to electronic pressure controller, aerifys in the air cavity 3 of overhead tank through air cock 5, is full of gas in the air cavity 3, and gasbag 2 can compress to cover 12 on, the second supports and leans on all through-holes 13 of 8 shutoff of portion. When the water pump starts, be full of water pressure in the electronic pressure controller, during rivers entered into the water cavity 4 of overhead tank through water supply connector 6, made the gas pressure in air cavity 3 and the pressure of the water in water cavity 4 equal, when the pressure of the water in water cavity 4 was greater than the gas pressure in air cavity 3, first portion 7 of supporting can support and lean on air cock 5 and shutoff air cock 5. When the water pump is stopped, the water pressure in the electronic pressure controller is reduced, the air in the air cavity 3 of the pressure tank extrudes the air bag 2, and the water in the water cavity 4 is supplemented into the electronic pressure controller, so that the required water pressure can be kept in the electronic pressure controller, the water pump is prevented from being frequently started until the water pressure in the electronic pressure controller is less than the starting pressure of the water pump, and the water pump is started and then is recycled in the next period.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the housing 1, the can body 11, the can cover 12, the through hole 13, the reinforcing rib 14, the fixing groove 15, the pressing ring 16, the sealing strip 17, the airbag 2, the fixing seal portion 21, the pressing groove 22, the protruding strip 23, the air chamber 3, the water chamber 4, the air tap 5, the water inlet joint 6, the first abutting portion 7, the second abutting portion 8, the accommodating chamber 9, the fastening member 10, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a pressure tank, includes shell (1) and gasbag (2) of setting in shell (1), gasbag (2) are separated into air chamber (3) and water cavity (4) that do not communicate with each other with the inside cavity of shell (1), be equipped with air cock (5) and water supply connector (6) in shell (1), air cock (5) are linked together with air chamber (3), water supply connector (6) are linked together with water cavity (4), its characterized in that, the first portion (7) of supporting that leans on that has the protrusion setting on the lateral wall of gasbag (2), first portion (7) of supporting corresponds the setting with air cock (5), the second that has the protrusion setting on the inside wall of gasbag (2) supports portion (8), the second supports portion (8) and corresponds the setting with water supply connector (6).

2. A pressure tank, according to claim 1, characterized in that said first (7) and second (8) abutment portions are coaxially arranged, the connection point of said first abutment portion (7) and the air bag (2) being the same as the connection point of said second abutment portion (8) and the air bag (2), said first (7), second (8) abutment portions and air bag (2) being of one-piece construction.

3. A pressure tank according to claim 1, characterized in that the bladder (2) is partly recessed inwards forming a receiving chamber (9), the first abutment (7) being located in the receiving chamber (9).

4. A pressure tank, according to claim 1 or 2 or 3, characterized in that said outer shell (1) comprises a tank body (11) and a tank cover (12) both made of plastic material, said gas bag (2) having a fixed sealing portion (21) in the form of a ring at the edge of the opening, said fixed sealing portion (21) being embedded between said tank body (11) and tank cover (12), said gas bag (2) being fixedly arranged in said outer shell (1) by means of a fastening member (10) passing through said tank body (11) and tank cover (12) and being locked.

5. A pressure tank according to claim 4, characterized in that the tank cover (12) has a number of through holes (13), the inner diameter of the through holes (13) is smaller than the inner diameter of the water inlet connector (6), all the through holes (13) are located in the area enclosed by the water inlet connector (6), the second abutting part (8) is cylindrical or frustum-shaped, and the second abutting part (8) can block all the through holes (13).

6. A pressure tank according to claim 5, characterized in that the tank cover (12) is provided on its inner side wall with a plurality of ribs (14) radiating from the middle to the periphery, the inner ends of the ribs (14) are located at the edge of the circular arrangement area of the through holes (13), and the second abutting portion (8) can be located between the inner ends of the ribs (14).

7. A pressure tank, according to claim 4, characterized in that said tank cover (12) is provided with a recessed annular retaining groove (15), said tank body (11) is provided with a protruding annular compression ring (16), said retaining seal (21) is embedded in said retaining groove (15), and said retaining seal (21) is provided with an annular compression groove (22), said compression ring (16) being embedded in said compression groove (22).

8. A pressure tank, according to claim 7, characterized in that the edge of the outside of said fixed seal (21) has a plurality of spaced and protruding ribs (23), said ribs (23) being embedded in the tank (11).

9. Pressure tank, according to claim 7, characterized in that the groove bottom of the fixing groove (15) has a protruding sealing strip (17), which sealing strip (17) can be inserted into the fixing seal (21).

10. A pressure tank according to claim 1, 2 or 3, characterized in that the first abutment (7) is cylindrical or frustoconical, that the gas nozzle (5) is partly located in the gas chamber (3), and that the face of the gas nozzle (5) facing the first abutment (7) is plane.