CN209839680U

CN209839680U - Air inlet assembly of pressure tank

Info

Publication number: CN209839680U
Application number: CN201920702888.1U
Authority: CN
Inventors: 陈辉
Original assignee: Zhejiang Yuanhua Machinery Co Ltd
Current assignee: Zhejiang Yuanhua Machinery Co Ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2019-12-24
Anticipated expiration: 2029-05-15

Abstract

The utility model provides a subassembly that admits air of overhead tank belongs to the pressure vessel field. The utility model discloses in, the overhead tank includes the jar body and locates the gasbag in the jar body, form the air cavity between gasbag and the jar body, run through on the jar side wall and be equipped with the air inlet with the air cavity intercommunication, the air inlet subassembly is including locating the air cock outside the jar body, the air cock includes the tubulose end of giving vent to anger, the end inner of giving vent to anger passes the air inlet, it has annular turn-ups to give vent to anger to hold integrative shaping on the end inner, be equipped with the cushion ring that rubber made in the air cavity, be equipped with the ring channel on the cushion ring inner wall, the ring channel comprises two cell walls and the diapire that lies in between two cell walls, annular turn-ups lies in the ring channel, annular turn-ups both ends face pastes closely with two; the outer end of the air outlet end is sleeved with a press ring and a press cap which enables the press ring to be tightly pressed on the outer wall of the tank body is connected in a threaded mode. The air inlet assembly of the pressure tank is convenient to assemble.

Description

Air inlet assembly of pressure tank

Technical Field

The utility model belongs to the pressure vessel field relates to a pressure tank, especially a subassembly that admits air of 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 general cooperation water pump of current overhead tank uses, and the structure of this overhead tank generally includes a jar body, leather bag and blind flange, and the blind flange aligns the leather bag mouth and fixes the leather bag in jar internally, and the other end of jar body is equipped with the air cock hole of installation air cock, and the air cock is fixed and is penetrated jar body by helicitic texture. The flange is covered with the decompression water inlet, and when the water pressure of pipeline was in the peak period, water can be by the water inlet entering leather bag in, played the effect of buffering the water under high pressure, reduced the impact of water under high pressure to the water pump, also the effectual frequent pneumatics number of times that reduces the water pump can improve the life of water pump.

The existing leather bag can touch the air faucet extending into the tank body when being filled with water, and the caliber of the air faucet is small, so that the leather bag is damaged due to the fact that the leather bag repeatedly touches the leather bag for a long time, the effect of buffering high-pressure water is lost due to water leakage of the leather bag, and the pressure tank is caused to lose efficacy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a simple structure, equipment convenient overhead tank's subassembly that admits air.

The purpose of the utility model can be realized by the following technical proposal: the air inlet assembly of the pressure tank comprises a tank body and an air bag arranged in the tank body, wherein a closed air cavity is formed between the outer wall of the air bag and the inner wall of the tank body, an air inlet communicated with the air cavity is arranged on the side wall of the tank body in a penetrating manner, the air inlet assembly comprises an air faucet arranged outside the tank body, the air faucet comprises a tubular air outlet end, the inner end of the air outlet end penetrates through the air inlet and is positioned in the air cavity, the air inlet assembly is characterized in that an annular flanging is integrally formed on the outer side wall of the inner end of the air outlet end, a buffer ring made of rubber material is arranged in the air cavity, and the annular flanging, the air outlet; the inner side wall of the buffer ring is provided with an annular groove, the annular groove consists of two groove walls which are arranged oppositely and a bottom wall which is arranged between the two groove walls, the annular flanging is arranged in the annular groove, two end faces of the annular flanging are respectively and tightly attached to the two groove walls, one end face of the buffer ring is tightly pressed on the inner wall of the tank body to form sealing, and the other end face of the buffer ring is arranged between the air bag and the annular flanging; the outer end of the air outlet end is sleeved with a pressure ring and a pressure cap which enables the pressure ring to be tightly pressed on the outer wall of the tank body is connected in a threaded mode.

During installation, the air tap is positioned in a mode of clamping the tank wall of the tank body through the compression ring and the buffer ring. During the use, can contact with the buffering ring of being made by rubber materials during gasbag inflation, because buffering ring texture is softer and possess better elasticity, alright prevent effectively like this that the gasbag is damaged, prolong the overhead tank life-span.

The buffer ring is used for sealing the connection between the air outlet end and the tank body, and an elastic protection layer is formed between the air outlet end and the air bag to protect the air bag from being damaged.

In the air inlet assembly of the pressure tank, the inner hole of one end of the buffer ring close to the air bag is a taper hole, and the aperture of the taper hole is gradually increased from the air nozzle to the air bag. By adopting the design, the gas is discharged into the gas cavity more smoothly, and the whole inflation process is carried out smoothly.

In the subassembly of admitting air of foretell pressure tank, the air cock still including being pipy inlet end, and the inlet end is located the jar external, jar external still be equipped with the dust cover, and the air cock is in the dust cover, the dust cover pass through the screw and can dismantle with the inlet end and link to each other, and this dust cover seals the port of inlet end.

In the subassembly that admits air of foretell pressure tank, the dust cover constitute by the cover body with locate the internal shield of cover, the shield link to each other through screw thread and inlet end, the inner wall of the cover body on integrated into one piece have the connecting portion that are the tube-shape, the shape and the size of connecting portion all with the shield phase-match, the shield inlay card is in connecting portion.

In the air inlet assembly of the pressure tank, the dustproof cover is internally provided with an annular sealing gasket, the annular sealing gasket and the air inlet end are coaxially arranged, the end face of the annular sealing gasket is pressed on the end face of the air inlet end, and the outer side wall of the annular sealing gasket is abutted to the inner side wall of the dustproof cover. Under the effect of the annular sealing gasket, the effect of sealing the port of the air inlet end can be effectively enhanced.

In the air inlet assembly of the pressure tank, the middle part of the bottom wall of the air bag is integrally formed with the lug, the lug and the buffer ring are arranged in parallel along the axial direction of the tank body, the lug is positioned in the air bag, and the length of the lug is distributed along the radial direction of the tank body. Through setting up the lug to increase gasbag and the thickness of buffer ring contact site, further reduce the damaged probability of gasbag, thereby further improve the life-span.

Compared with the prior art, the air inlet assembly of the pressure tank has the following advantages:

1. set up the buffering ring of being made by rubber materials between the end at the gasbag and giving vent to anger, and can contact with the buffering ring when the gasbag inflation, because buffering ring texture is softer and possess better elasticity, alright prevent effectively that the gasbag is damaged like this, prolong the pressure tank life-span.

2. The buffer ring is used for sealing the connection between the air outlet end and the tank body, and an elastic protection layer is formed between the air outlet end and the air bag to protect the air bag from being damaged.

Drawings

Fig. 1 is a schematic structural view of the intake assembly of the present pressure tank.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is a schematic diagram of a buffer ring structure.

In the figure, 1, a tank body; 2. an air bag; 2a, a bump; 3. an air cavity; 4. an air tap; 4a, an air outlet end; 4b, annular flanging; 4c, an air inlet end; 5. a buffer ring; 5a, an annular groove; 5a1, slot walls; 5a2, bottom wall; 5b, taper holes; 6. pressing a ring; 7. pressing the cap; 8. a dust cover; 8a, a cover body; 8a1, a connection; 8b, a dustproof cover; 9. an annular seal.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, in the air intake assembly of the pressure tank, the pressure tank comprises a tank body 1 and an air bag 2 arranged in the tank body 1, and a closed air chamber 3 is formed between the outer wall of the air bag 2 and the inner wall of the tank body 1. An air inlet is arranged on the side wall of the tank body 1 in a penetrating way and is communicated with the air cavity 3.

This air inlet assembly is including locating jar external air cock 4 of body 1, and air cock 4 is including being the tubulose end 4a of giving vent to anger, and the port of the end 4a of giving vent to anger is the gas outlet of air cock 4. The inner end of the air outlet end 4a penetrates through the air inlet and is positioned in the air cavity 3, an annular flanging 4b is integrally formed on the outer side wall of the inner end of the air outlet end 4a, a buffer ring 5 made of rubber materials is arranged in the air cavity 3, and the annular flanging 4b, the air outlet end 4a and the buffer ring 5 are coaxially arranged. As shown in fig. 1 and 3, the inner side wall of the cushion ring 5 is provided with an annular groove 5a, and the annular groove 5a and the cushion ring 5 are coaxially arranged. The annular groove 5a is composed of two groove walls 5a1 which are arranged oppositely and a bottom wall 5a2 which is arranged between the two groove walls 5a1, the annular flanging 4b is arranged in the annular groove 5a, and two end faces of the annular flanging 4b are respectively tightly attached to the two groove walls 5a 1. Further, it is preferable that the outer side wall of the ring flange abuts closely against the bottom wall 5a2 of the annular groove 5a to increase the connection stability of the annular flange 4b and the cushion ring 5.

As shown in fig. 1 and 2, one end face of the cushion ring 5 is pressed against the inner wall of the can body 1 to form a seal, and the other end face of the cushion ring 5 is located between the airbag 2 and the annular flange 4 b. The outer end of the air outlet end 4a is externally sleeved with a press ring 6 and a press cap 7 which enables the press ring 6 to be tightly pressed on the outer wall of the tank body 1 is in threaded connection. Further, an inner hole of the cushion ring 5 near one end of the airbag 2 is a taper hole 5b, and the diameter of the taper hole 5b gradually increases from the air nozzle 4 to the airbag 2. A lug 2a is integrally formed on the middle part of the bottom wall 5a2 of the air bag 2, and the lug 2a and the buffer ring 5 are arranged in parallel along the axial direction of the tank body 1. The projection 2a is positioned in the air bag 2, and the length of the projection 2a is distributed along the radial direction of the tank body 1. By providing the projection 2a, the thickness of the contact portion between the airbag 2 and the cushion ring 5 is increased, so that the probability of breakage of the airbag 2 is further reduced, and the service life is further prolonged.

Further, the air faucet 4 further includes an air inlet end 4c having a tubular shape, and a port of the air inlet end 4c is an air inlet of the air faucet 4. The air inlet end 4c is positioned outside the tank body 1, a dust cover 8 is also arranged outside the tank body 1, and the air tap 4 is positioned in the dust cover 8. The dust cover 8 is detachably attached to the inlet end 4c by a screw, and the dust cover 8 closes the port of the inlet end 4 c. In the present embodiment, the dust cover 8 is composed of a cover body 8a and a dust cover 8b provided inside the cover body 8 a. The dust cap 8b is connected with the air inlet end 4c through threads, the inner wall of the cover body 8a is integrally formed with a cylindrical connecting part 8a1, the shape and the size of the connecting part 8a1 are matched with those of the dust cap 8b, and the dust cap 8b is embedded in the connecting part 8a1 in a clamping mode. Further, an annular sealing gasket 9 is arranged in the dust cover 8b, the annular sealing gasket 9 and the air inlet end 4c are coaxially arranged, the end face of the annular sealing gasket 9 is pressed against the end face of the air inlet end 4c, and the outer side wall of the annular sealing gasket 9 is abutted against the inner side wall of the dust cover 8 b. Under the action of the annular sealing gasket 9, the effect of sealing the port of the air inlet end 4c can be effectively enhanced.

During installation, the air tap 4 is positioned in a mode of clamping the tank wall of the tank body 1 through the pressure ring 6 and the buffer ring 5. When the pressure tank is used, the air bag 2 can be in contact with the buffer ring 5 made of rubber materials when being expanded, and the buffer ring 5 is soft in texture and has good elasticity, so that the air bag 2 can be effectively prevented from being damaged, and the service life of the pressure tank is prolonged.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The air inlet assembly of the pressure tank comprises a tank body (1) and an air bag (2) arranged in the tank body (1), a closed air cavity (3) is formed between the outer wall of the air bag (2) and the inner wall of the tank body (1), an air inlet communicated with the air cavity (3) is arranged on the side wall of the tank body (1) in a penetrating manner, the air inlet assembly comprises an air nozzle (4) arranged outside the tank body (1), the air nozzle (4) comprises a tubular air outlet end (4a), and the inner end of the air outlet end (4a) penetrates through the air inlet and is positioned in the air cavity (3), and the air inlet assembly is characterized in that an annular flanging (4b) is integrally formed on the outer side wall of the inner end of the air outlet end (4a), a buffer ring (5) made of rubber material is arranged in the air cavity (3), and the annular flanging (4b), the air outlet end (4a) and; an annular groove (5a) is formed in the inner side wall of the buffer ring (5), the annular groove (5a) is composed of two groove walls (5a1) which are arranged oppositely and a bottom wall (5a2) which is arranged between the two groove walls (5a1), the annular flanging (4b) is arranged in the annular groove (5a), two end faces of the annular flanging (4b) are respectively and tightly attached to the two groove walls (5a1), one end face of the buffer ring (5) is tightly pressed on the inner wall of the tank body (1) to form sealing, and the other end face of the buffer ring (5) is arranged between the air bag (2) and the annular flanging (4 b); the outer end of the air outlet end (4a) is externally sleeved with a pressure ring (6) and a pressure cap (7) which enables the pressure ring (6) to be tightly pressed on the outer wall of the tank body (1) is screwed.

2. The air inlet assembly of the pressure tank is characterized in that the inner hole of one end, close to the air bag (2), of the buffer ring (5) is a taper hole (5b), and the diameter of the taper hole (5b) is gradually increased from the air nozzle (4) to the air bag (2).

3. The air inlet assembly of the pressure tank, as recited in claim 1 or 2, characterized in that the air tap (4) further comprises a tubular air inlet end (4c), the air inlet end (4c) is located outside the tank body (1), a dust cover (8) is further disposed outside the tank body (1), the air tap (4) is located in the dust cover (8), the dust cover (8) is detachably connected with the air inlet end (4c) through a thread, and the dust cover (8) closes the port of the air inlet end (4 c).

4. The intake assembly of the pressure tank, according to claim 3, characterized in that the dust cover (8) is composed of a cover body (8a) and a dust cover (8b) arranged in the cover body (8a), the dust cover (8b) is connected with the intake end (4c) through a screw thread, a cylindrical connecting part (8a1) is integrally formed on the inner wall of the cover body (8a), the shape and the size of the connecting part (8a1) are matched with those of the dust cover (8b), and the dust cover (8b) is embedded in the connecting part (8a 1).

5. The intake assembly of a pressure tank according to claim 4, wherein an annular sealing gasket (9) is arranged in the dust cover (8b), the annular sealing gasket (9) and the intake end (4c) are coaxially arranged, the end surface of the annular sealing gasket (9) is pressed against the end surface of the intake end (4c), and the outer side wall of the annular sealing gasket (9) is pressed against the inner side wall of the dust cover (8 b).

6. The intake assembly of a pressure tank according to claim 1, characterized in that the central portion of the bottom wall (5a2) of the airbag (2) is integrally formed with a projection (2a), the projection (2a) and the cushion ring (5) are arranged in parallel along the axial direction of the tank body (1), the projection (2a) is located in the airbag (2), and the length of the projection (2a) is distributed along the radial direction of the tank body (1).