CN211368880U

CN211368880U - Expansion tank for water supply system

Info

Publication number: CN211368880U
Application number: CN201922133716.XU
Authority: CN
Inventors: 杨海滢
Original assignee: Foshan Puhe Metal Products Co ltd
Current assignee: Foshan Puhe Pump Co.,Ltd.
Priority date: 2019-12-01
Filing date: 2019-12-01
Publication date: 2020-08-28
Anticipated expiration: 2029-12-01

Abstract

The utility model discloses an expansion tank for water supply system, including aerifing hole, hole cap, folding water pipe and expansion tank body, the upper end of expansion tank body is provided with gasbag fixation nut, the outside of expansion tank body is provided with aerifys the hole, the upper end of aerifing the hole is fixed with the hole cap, gasbag fixation nut's lower extreme is provided with the support, the lower extreme of expansion tank body is provided with the water inlet. The utility model discloses a flexible folding principle of folding water pipe is connected through pulling interface screwed pipe, makes the installation no longer receive the strict requirement of position, has reduced the installation degree of difficulty of expansion tank, and the operation is got up also more swiftly, increases the hole cap of a double thread simultaneously, carries out double-deck screw thread to inflating the downthehole inside and outside, and the rubber pad is sealed, and intraductal gaseous rethread inflation hole is revealed, has reduced the number of times of make-up gas, and it is long when having improved the use of filling a gas expansion tank greatly.

Description

Expansion tank for water supply system

Technical Field

The utility model belongs to the technical field of water supply equipment, concretely relates to expansion tank for water supply system.

Background

The expansion tank is mainly used for a water system to play a role in balancing water pressure fluctuation and partial water supply, when the water loss pressure is reduced, the gas pressure in the expansion tank is greater than the water pressure, at the moment, the gas expansion extrudes the water in the tank to supplement the water to the system, the expansion tank is widely used at present and comprises four parts, namely a tank body, a gas bag, a water inlet/outlet and a gas supplementing port. The tank body is generally made of carbon steel, an antirust baking paint layer is arranged outside the tank body, the air bag is made of EPDM environment-friendly rubber, and pre-charging gas between the air bag and the tank body is filled when the tank body leaves a factory.

The expansion tank that water supply system used is great relatively, and for the inconvenient frequent removal of safety, the installing port sets up in jar body bottom, consequently installs more difficultly, and gasbag formula expansion tank generally is equipped with the hole of aerifing, but when water pressure was too big in the gasbag, gaseous quilt extrudeed can spill from the hole of aerifing, needs often inflate the jar body.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an expansion tank for water supply system has more convenient, more durable characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: an expansion tank for a water supply system comprises an inflation hole, a hole cap, a folding water pipe and an expansion tank body, wherein an air bag fixing nut is arranged at the upper end of the expansion tank body, the inflation hole is formed in the outer side of the expansion tank body, the hole cap is fixed at the upper end of the inflation hole, a support is arranged at the lower end of the air bag fixing nut, a water inlet is formed in the lower end of the expansion tank body, an air bag is fixed between the water inlet and the air bag fixing nut, an air chamber is arranged in the outer side of the air bag, a flange gasket is arranged at the upper end of the water inlet, the folding water pipe is arranged at the lower end of the water inlet, an interface screwed pipe is arranged at the lower end of the folding water pipe, a nut is fixed on the outer side of;

the hole cap comprises a rubber pad, a hole cap shell and a hole cap inner screw tube, wherein the rubber pad is arranged on the outer side of the hole cap inner screw tube, and the hole cap shell is arranged on the outer side of the rubber pad.

Preferably, the flange gasket and the water inlet are fixed through screws.

Preferably, the two ends of the folding water pipe are made of PPR materials, the plasticity is good, and the folding water pipe and the water inlet are fixedly connected through hot melting.

Preferably, the support legs and the expansion tank body are fixed through arc welding.

Preferably, the hole cap shell and the screw tube in the hole cap are of an integrated structure, threads are arranged on the inner side of the hole cap shell and the outer side of the screw tube in the hole cap, and the hole cap and the inflation hole are fixed through double-layer threads.

Preferably, when the folding water pipe is folded, the water inlet and the interface solenoid are fixed through a screw cap.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a flexible folding principle of folding water pipe is connected through pulling interface screwed pipe, makes the installation no longer receive the strict requirement of position, has reduced the installation degree of difficulty of expansion tank, and the operation is got up also more swiftly, increases the hole cap of a double thread simultaneously, carries out double-deck screw thread to inflating the downthehole inside and outside, and the rubber pad is sealed, and intraductal gaseous rethread inflation hole is revealed, has reduced the number of times of make-up gas, and it is long when having improved the use of filling a gas expansion tank greatly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the structure of the hole cap of the present invention.

In the figure: 1. an airbag fixing nut; 2. an inflation hole; 3. a hole cap; 31. a rubber pad; 32. a port cap housing; 33. a screw pipe in the hole cap; 4. an air bag; 5. a flange gasket; 6. folding the water pipe; 7. an interface solenoid; 8. a nut; 9. a water inlet; 10. a support leg; 11. an air chamber; 12. a support; 13. an expansion tank body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: an expansion tank for a water supply system comprises an inflation hole 2, a hole cap 3, a folding water pipe 6 and an expansion tank body 13, wherein an air bag fixing nut 1 is arranged at the upper end of the expansion tank body 13, the inflation hole 2 is arranged on the outer side of the expansion tank body 13, the hole cap 3 is fixed at the upper end of the inflation hole 2, a support 12 is arranged at the lower end of the air bag fixing nut 1, a water inlet 9 is arranged at the lower end of the expansion tank body 13, an air bag 4 is fixed between the water inlet 9 and the air bag fixing nut 1, an air chamber 11 is arranged on the outer side of the air bag 4, a flange gasket 5 is arranged at the upper end of the water inlet 9, the folding water pipe 6 is arranged at the lower end of the folding water pipe 6, an interface screwed pipe 7 is arranged at the lower end of the folding water pipe 6;

the hole cap 3 comprises a rubber pad 31, a hole cap shell 32 and a hole cap inner screw pipe 33, wherein the rubber pad 31 is arranged on the outer side of the hole cap inner screw pipe 33, and the hole cap shell 32 is arranged on the outer side of the rubber pad 31.

In order to make the water inlet 9 watertight, in the embodiment, the flange gasket 5 and the water inlet 9 are preferably fixed by screws.

In order to connect the folding water pipe 6 and the water inlet 9, in this embodiment, preferably, both ends of the folding water pipe 6 are made of PPR material, and the folding water pipe 6 and the water inlet 9 are connected and fixed through hot melting.

In order to enable the expansion tank body 13 to be placed stably, in the present embodiment, the legs 10 and the expansion tank body 13 are preferably fixed by arc welding.

In order to reduce air leakage of the inflation hole 2, in this embodiment, preferably, the port cap housing 32 and the port cap internal threaded tube 33 are of an integrated structure, the inner side of the port cap housing 32 and the outer side of the port cap internal threaded tube 33 are both provided with threads, and the port cap 3 and the inflation hole 2 are fixed by double-layer threads.

In order to connect the water inlet 9 with the interface solenoid 7, in this embodiment, it is preferable that the water inlet 9 and the interface solenoid 7 are fixed by a nut 8 when the folding water pipe 6 is folded.

The utility model discloses a theory of operation and use flow: firstly, put expansion tank body 13 in the suitable position that water supply system needs to be connected, twist nut 8 and make folding water pipe 6 can stretch, then utilize folding water pipe 6's tensile effect to draw interface screwed pipe 7 to the position that water supply system needs to be connected, be connected interface screwed pipe 7 and water supply system, through folding water pipe 6's tensile effect, it becomes more convenient to make the installation, then screw up stabilizer blade 10 with the hole that ground was reserved with the screw, guarantee expansion tank body 13's stability, twist the cap 3 at last, the double-deck screwed pipe in the cap 3 all is fixed with inflation hole 2, thereby make inflation hole 2 and rubber pad 31 hug closely and form inclosed space, reduce gaseous the revealing in the jar.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an expansion tank for water supply system, is including aerifing hole (2), hole cap (3), folding water pipe (6) and expansion tank body (13), its characterized in that: an air bag fixing nut (1) is arranged at the upper end of the expansion tank body (13), an inflation hole (2) is arranged at the outer side of the expansion tank body (13), a hole cap (3) is fixed at the upper end of the inflation hole (2), a bracket (12) is arranged at the lower end of the air bag fixing nut (1), a water inlet (9) is arranged at the lower end of the expansion tank body (13), an air bag (4) is fixed between the water inlet (9) and the air bag fixing nut (1), an air chamber (11) is arranged at the outer side of the air bag (4), a flange gasket (5) is arranged at the upper end of the water inlet (9), a folding water pipe (6) is arranged at the lower end of the water inlet (9), a connector solenoid (7) is arranged at the lower end of the folding water pipe (6), a nut (8) is fixed on the outer side of the interface solenoid (7), and three support legs (10) are fixed below the expansion tank body (13);

the hole cap (3) comprises a rubber pad (31), a hole cap shell (32) and a hole cap inner screw tube (33), wherein the rubber pad (31) is arranged on the outer side of the hole cap inner screw tube (33), and the hole cap shell (32) is arranged on the outer side of the rubber pad (31).

2. An expansion tank for a water supply system according to claim 1, characterized in that: the flange gasket (5) and the water inlet (9) are fixed through screws.

3. An expansion tank for a water supply system according to claim 1, characterized in that: the two ends of the folding water pipe (6) are made of PPR materials, the plasticity is good, and the folding water pipe (6) and the water inlet (9) are fixedly connected through hot melting.

4. An expansion tank for a water supply system according to claim 1, characterized in that: the support leg (10) and the expansion tank body (13) are fixed through arc welding.

5. An expansion tank for a water supply system according to claim 1, characterized in that: the hole cap shell (32) and the hole cap inner screwed pipe (33) are of an integrated structure, threads are arranged on the inner side of the hole cap shell (32) and the outer side of the hole cap inner screwed pipe (33), and the hole cap (3) and the inflation hole (2) are fixed through double-layer threads.

6. An expansion tank for a water supply system according to claim 1, characterized in that: when the folding water pipe (6) is folded, the water inlet (9) and the interface solenoid (7) are fixed through a screw cap (8).