Expansion tank with automatic exhaust function

Abstract

The utility model relates to the field of water system accessories, and discloses an expansion tank with an automatic exhaust function, which comprises a tank body, an air bag is fixedly connected in the tank body, an exhaust mechanism is fixedly connected on one side of the tank body far away from the air bag, and the other end of the exhaust mechanism is fixedly connected with a fastening ring. The other end of the fastening ring is fixedly connected with a shell, the other end of the shell is fixedly connected with a connector, the bottom end of the connector is in threaded connection with a connecting nut, and the bottom end of the connecting nut is in threaded connection with a connecting rod. According to the transfer trolley, when other equipment needs to use an expansion tank and the tank body needs to move, the first locking rod and the second locking rod are clamped and locked by pulling the handle, and the connecting rod is connected with the tank body, so that the tank body can be transferred by using the transfer trolley without being transferred by hoisting, the tank body is prevented from being damaged due to collision, and the transfer trolley is convenient to use. And meanwhile, the occurrence of injury accidents is also avoided.

Description

Technical Field

[0001] The utility model relates to the field of water system accessories, in particular to an expansion tank with an automatic exhaust function. Background Art

[0002] HVAC systems such as air conditioners, solar energy, boilers, as well as water supply and fire-fighting equipment will produce system pressure fluctuations during operation. When the system pressure rises or drops too sharply, it will affect the operation of the entire equipment.

[0003] In order to solve the problem of system pressure fluctuation, an expansion tank is needed.

[0004] Expansion tanks are divided into two types: airbag type and diaphragm type. The diaphragm type expansion tank completely separates air and water, with water on one side of the rubber diaphragm and pre-filled air on the other side. In the airbag type expansion tank, water is inside the rubber bladder, and the gap between the outside and the tank body is pre-filled with air.

[0005] Most of the expansion tanks in the prior art are too heavy and inconvenient to move, and can only be transported by hoisting during transportation. During transportation, collisions may occur, causing damage to the tank body, and the tank body may fall, causing casualties. This increases the cost of tank transportation and cannot ensure safe production. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides an expansion tank with an automatic exhaust function, aiming to improve the problem of increased production costs and waste of resources caused by the fixed setting of the expansion tank that cannot be moved.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an expansion tank with automatic exhaust function, comprising a tank body, wherein an air bag is fixedly connected to the inside of the tank body, an end of the air bag close to the tank body is fixedly connected to a water inlet pipe, the top of the tank body is fixedly connected to the air inlet pipe, one side of the tank body is fixedly connected to a manhole, the side of the tank body away from the air bag is fixedly connected to an exhaust mechanism, the other end of the exhaust mechanism is fixedly connected to a fastening ring, the other end of the fastening ring is fixedly connected to an outer shell, the other end of the outer shell is fixedly connected to a connecting head, the bottom end of the connecting head is threadedly connected to a connecting nut, the bottom end of the connecting nut is threadedly connected to a connecting rod, the side of the connecting head close to the outer shell is fixedly connected to a locking rod 2, a locking rod 1 is rotatably connected to the inside of the outer shell, the middle part of the locking rod 1 is threadedly connected to a locking nut, and the locking rod 1 is engaged with the locking rod 2.

[0008] As a further description of the above technical solution:

[0009] The exhaust mechanism includes a mounting shell, one end of the mounting shell away from the fastening ring is fixedly connected to the outside of the tank body, a spring is fixedly connected to the inside of the mounting shell, one end of the spring close to the tank body is fixedly connected to a limiting plate, and an exhaust hole is opened on the side of the mounting shell away from the limiting plate.

[0010] As a further description of the above technical solution:

[0011] The end of the locking rod away from the shell is fixedly connected with a handle, the top of the tank body is fixedly connected with four hanging ears, and the bottom of the tank body is fixedly connected with four supporting legs.

[0012] As a further description of the above technical solution:

[0013] The limiting plate is slidably connected to the interior of the mounting shell, and an exhaust pipe is fixedly connected to a side of the exhaust hole away from the mounting shell.

[0014] As a further description of the above technical solution:

[0015] A water inlet flange is fixedly connected to a side of the water inlet pipe away from the tank body, and an air inlet flange is fixedly connected to a side of the air inlet pipe away from the tank body.

[0016] As a further description of the above technical solution:

[0017] A pull ring is fixedly connected to the outside of the manhole, and the locking nut is fixedly connected to the outside of the shell.

[0018] As a further description of the above technical solution:

[0019] A plug is provided at one end of the exhaust pipe away from the mounting shell.

[0020] As a further description of the above technical solution:

[0021] A protective cover is arranged outside the lifting ear, and an anti-skid pad is arranged at the bottom of the supporting leg.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, when other equipment needs to use the expansion tank and the tank body needs to be moved, the handle is pulled to engage and lock the locking rod one and the locking rod two, and the connecting rod is connected to the tank body. The tank body can be transported by a transfer vehicle, thereby achieving the effect of safe transportation of the tank body. There is no need to transport it by lifting, which avoids damage to the tank body due to collision and also avoids the occurrence of injuries.

[0024] In the utility model, automatic exhaust can be achieved by pushing the limit plate through the exhaust hole position through the gas in the tank, thereby avoiding damage and deformation of the tank body due to excessive internal pressure, realizing the sustainable use of the expansion tank, and avoiding dangerous accidents due to excessive internal pressure in the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the expansion tank with automatic exhaust function proposed by the utility model;

[0026] Figure 2 This is a cross-sectional view of the expansion tank with automatic exhaust function proposed by the utility model;

[0027] Figure 3 A cross-sectional view of the exhaust mechanism of the expansion tank with automatic exhaust function proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the connector of the expansion tank with automatic exhaust function proposed by the utility model;

[0029] Figure 5 This is a schematic diagram of the locking rod of the expansion tank with automatic exhaust function proposed by the utility model.

[0030] Legend:

[0031] 1. Tank body; 2. Air bag; 3. Water inlet pipe; 4. Water inlet flange; 5. Air inlet pipe; 6. Air inlet flange; 7. Manhole; 8. Exhaust mechanism; 801. Mounting shell; 802. Limit plate; 803. Spring; 804. Exhaust hole; 805. Exhaust pipe; 9. Fastening ring; 10. Connector; 11. Outer shell; 12. Locking rod one; 13. Locking rod two; 14. Locking nut; 15. Handle; 16. Connecting nut; 17. Connecting rod; 18. Lifting ear; 19. Support leg. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-Figure 3The utility model provides an embodiment: an expansion tank with automatic exhaust function, comprising a tank body 1, an air bag 2 is fixedly connected inside the tank body 1, and plays the role of water storage. The end of the air bag 2 close to the tank body 1 is fixedly connected to the water inlet pipe 3, the top of the tank body 1 is fixedly connected to the air inlet pipe 5, and one side of the tank body 1 is fixedly connected to a manhole 7, which plays the role of personnel entering the pipe to replace the air bag 2. The side of the tank body 1 away from the air bag 2 is fixedly connected to the exhaust mechanism 8, which plays the role of automatic exhaust. The other end of the exhaust mechanism 8 is fixedly connected to a fastening ring 9, which plays the role of connecting the connecting rod 17 and the tank body 1. The other end of the fastening ring 9 is fixedly connected to a shell 11, which plays the role of fixing the internal structure. The other end of the shell 11 is fixedly connected to a connector 10, the bottom end of the connector 10 is threadedly connected to a connecting nut 16, and the bottom end of the connecting nut 16 is threadedly connected to a connecting rod 17, which plays the role of dragging the tank body 1. The side of the connector 10 close to the shell 11 is fixedly connected to a locking rod 2 13, which plays the role of clamping the locking rod 1 12. A locking rod 12 is rotatably connected inside the housing 11, and a locking nut 14 is threadedly connected to the middle of the locking rod 12 to rotate the locking rod 12. The locking rod 12 is engaged with the locking rod 2 13.

[0034] Reference Figure 3-Figure 5 The exhaust mechanism 8 includes a mounting shell 801, which plays a role in fixing the internal structure. The end of the mounting shell 801 away from the fastening ring 9 is fixedly connected to the outside of the tank body 1, and the inside of the mounting shell 801 is fixedly connected with a spring 803 to provide elastic force. The end of the spring 803 close to the tank body 1 is fixedly connected with a limit plate 802 to prevent the spring 803 from falling off. The side of the mounting shell 801 away from the limit plate 802 is provided with an exhaust hole 804 to exhaust. The end of the locking rod 12 away from the shell 11 is fixedly connected with a handle 15, and the top of the tank body 1 is fixedly connected with four lifting ears 18 to play the role of lifting the tank body 1. The bottom of the tank body 1 is fixedly connected with four legs 19. The limit plate 802 is slidably connected to the inside of the mounting shell 801, and the exhaust hole 804 is fixedly connected with an exhaust pipe 805 on the side away from the mounting shell 801. The side of the water inlet pipe 3 away from the tank body 1 is fixedly connected with a water inlet flange 4 to fasten the water inlet pipe 3. The side of the air inlet pipe 5 away from the tank body 1 is fixedly connected with the air inlet flange 6, which plays the role of fastening the air inlet pipe 5. The outside of the manhole 7 is fixedly connected with a pull ring, and the locking nut 14 is fixedly connected to the outside of the shell 11. A plug is provided at one end of the exhaust pipe 805 away from the mounting shell 801. A protective sleeve is provided on the outside of the lifting ear 18, and an anti-slip pad is provided at the bottom of the leg 19.

[0035] Working principle: When the tank body 1 needs to be moved, first rotate the connecting rod 17 and tighten it inside the connecting nut 16, insert the locking rod 13 into the outer shell 11, turn the handle 15 to make the locking rod 12 engage with the locking rod 2 13 through the locking nut 14, and then the transfer vehicle can be used to drag the tank body 1 through the connecting rod 17.

[0036] When the equipment is running, if the amount of water entering the airbag 2 is large, causing the gas pressure in the tank body 1 to be unbalanced, the gas in the tank body 1 will push the limit plate 802 through the pressure. When the gas pushes the limit plate 802 past the exhaust hole 804, the gas in the tank body 1 will be automatically discharged to reduce the pressure in the tank. When the gas pressure in the tank body 1 returns to a balanced state, the spring 803 inside the mounting shell 801 will rebound the limit plate 802 back to the top of the mounting shell 801 to seal the tank body 1.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An expansion tank with automatic exhaust function, comprising a tank body (1), characterized in that: The tank body (1) is fixedly connected to an air bag (2) inside, one end of the air bag (2) close to the tank body (1) is fixedly connected to a water inlet pipe (3), the top of the tank body (1) is fixedly connected to an air inlet pipe (5), one side of the tank body (1) is fixedly connected to a manhole (7), the side of the tank body (1) away from the air bag (2) is fixedly connected to an exhaust mechanism (8), the other end of the exhaust mechanism (8) is fixedly connected to a fastening ring (9), the other end of the fastening ring (9) is fixedly connected to an outer shell (11), the outer shell (11) ) is fixedly connected to the other end of the connector (10), the bottom end of the connector (10) is threadedly connected to a connecting nut (16), the bottom end of the connecting nut (16) is threadedly connected to a connecting rod (17), a locking rod 2 (13) is fixedly connected to the side of the connector (10) close to the housing (11), a locking rod 1 (12) is rotatably connected to the inside of the housing (11), a locking nut (14) is threadedly connected to the middle part of the locking rod 1 (12), and the locking rod 1 (12) is engaged with the locking rod 2 (13).

2. The expansion tank with automatic exhaust function according to claim 1, characterized in that: The exhaust mechanism (8) comprises a mounting shell (801), one end of the mounting shell (801) away from the fastening ring (9) is fixedly connected to the outside of the tank body (1), a spring (803) is fixedly connected to the inside of the mounting shell (801), one end of the spring (803) close to the tank body (1) is fixedly connected to a limit plate (802), and an exhaust hole (804) is provided on a side of the mounting shell (801) away from the limit plate (802).

3. The expansion tank with automatic exhaust function according to claim 1, characterized in that: A handle (15) is fixedly connected to one end of the locking rod 1 (12) away from the housing (11), four lifting ears (18) are fixedly connected to the top of the tank body (1), and four supporting legs (19) are fixedly connected to the bottom of the tank body (1).

4. The expansion tank with automatic exhaust function according to claim 2, characterized in that: The limiting plate (802) is slidably connected to the interior of the mounting shell (801), and an exhaust pipe (805) is fixedly connected to a side of the exhaust hole (804) away from the mounting shell (801).

5. The expansion tank with automatic exhaust function according to claim 1, characterized in that: A water inlet flange (4) is fixedly connected to the side of the water inlet pipe (3) away from the tank body (1), and an air inlet flange (6) is fixedly connected to the side of the air inlet pipe (5) away from the tank body (1).

6. The expansion tank with automatic exhaust function according to claim 1, characterized in that: A pull ring is fixedly connected to the outside of the manhole (7), and the locking nut (14) is fixedly connected to the outside of the outer shell (11).

7. The expansion tank with automatic exhaust function according to claim 4, characterized in that: A plug is provided at one end of the exhaust pipe (805) away from the mounting shell (801).

8. The expansion tank with automatic exhaust function according to claim 3, characterized in that: The outside of the lifting ear (18) is provided with a protective sleeve, and the bottom of the supporting leg (19) is provided with an anti-slip pad.

Images