Tank cover of novel pressure tank

Abstract

The utility model provides a novel tank cover of a pressure tank, and belongs to the technical field of machinery. The pressure tank cover solves the problems that a tank cover of an existing pressure tank is not prone to exhausting, poor in bearing capacity, poor in anti-pressure capacity and short in service life. The tank cover of the novel pressure tank comprises a disc-shaped body, a cylindrical connecting end is arranged in the middle of the body, the connecting end and the body are coaxially arranged, a connecting joint made of metal materials is embedded in the outer end of the connecting end, and the connecting joint and the connecting end are coaxially arranged. The middle of the body is an arc-shaped part which is concave inwards, the arc-shaped part and the body are coaxially arranged, a plurality of air guide grooves are formed in the inner side wall of the body and are arranged in the radial direction of the body, the inner ends of the air guide grooves are communicated with the inner side wall of the connecting end, and the air guide grooves are evenly arranged with the axis of the body as the center. The tank cover of the novel pressure tank has the advantages of being good in exhaust effect, good in bearing capacity, good in anti-pressure capacity and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a pressure tank, in particular to a tank cover of a new type of pressure tank. Background Technique

[0002] The pressure tank is used in a closed water circulation system, which plays a role in balancing water volume and pressure, avoiding frequent opening of the safety valve and frequent water replenishment of the automatic water replenishing valve. Besides playing the role of accommodating the expansion water, the pressure tank can also play the role of a water replenishing tank. The pressure tank generally consists of four parts: a tank body, an air bag, an inlet / outlet and an air charging port. The tank body is generally made of carbon steel, with an anti-rust baking paint layer on the outside. The air bag is an integral air bag. When working, water only enters the air bag and does not contact the shell. The wall of the carbon steel tank body is relatively thin. After the cover is added, welding is carried out for sealing. Due to the high air pressure inside the tank body, it is easy to cause air leakage at the welding part between the tank body and the cover, resulting in a decrease in the pressure inside the pressure tank, a decrease in the function of balancing water volume and pressure, and frequent start and stop of the water pump, which interferes with the operation of the water pump and seriously affects the service life of the water pump in severe cases.

[0003] As disclosed in a new type of pressure tank (application number: 202111553919.X) in Chinese patent literature, it includes a tank body and a tank cover fixedly arranged at the opening of the tank body. A leather bag is arranged inside the tank body, and the leather bag divides the inside of the tank body into an air chamber and a liquid chamber. A water connection port is arranged on the tank cover, and the water connection port penetrates through the outside and the liquid chamber. An air inlet is arranged on the tank body, and the air inlet penetrates through the outside and the air chamber. The edge of the opening of the leather bag is clamped between the tank body and the tank cover, and a limit sealing ring is arranged between the edge of the opening of the leather bag and the tank cover, and the limit sealing ring presses the edge of the opening of the leather bag against the opening of the tank body. However, the end face of the tank cover of this pressure tank is flat, so it is not easy to exhaust air during work, and at the same time, it has poor load-bearing capacity, poor compressive capacity and short service life. Summary of the Invention

[0004] The purpose of the utility model is to provide a tank cover of a new type of pressure tank with good exhaust effect, good load-bearing capacity, good compressive capacity and long service life in view of the above problems existing in the prior art.

[0005] The object of the present utility model can be achieved by the following technical solutions: The lid of the new pressure tank includes a disc-shaped body. The middle part of the body has a cylindrical connecting end, and the connecting end is coaxially arranged with the body. It is characterized in that a connecting joint made of a metal material is embedded at the outer end of the connecting end, and the connecting joint is coaxially arranged with the connecting end. The middle part of the body is an arc-shaped part that is recessed inward, and the arc-shaped part is coaxially arranged with the body. A plurality of air guide grooves are provided on the inner side wall of the body, and the air guide grooves are arranged along the radial direction of the body. The inner end of the air guide groove is communicated with the inner side wall of the connecting end, and the air guide grooves are evenly arranged around the axis of the body.

[0006] When connecting, the body is fixedly connected to the tank body of the pressure tank. Since the above-mentioned air guide grooves are provided on the inner side wall of the body, the air guide grooves are arranged along the radial direction of the body and are communicated with the inner side wall of the connecting end, which is convenient for the gas to be discharged along the air guide grooves through the connecting end, enabling the pressure tank to have a better buffering effect. Since the middle part of the body is an arc-shaped surface that is recessed inward, the bearing capacity and compressive resistance of the body can be improved, and the service life of the lid body is increased. Since a connecting joint made of a metal material is embedded in the connecting end, it has the advantages of reliable connection and long service life.

[0007] In the above-mentioned lid of the new pressure tank, a plurality of anti-rotation convex bodies are evenly provided on the outer side wall of the inner end of the connecting joint. The number of the anti-rotation convex bodies is 2-8, and they are evenly arranged around the axis of the connecting joint. By providing the above-mentioned anti-rotation convex bodies, the connection firmness between the connecting joint and the body is improved, thereby increasing the service life.

[0008] In the above-mentioned lid of the new pressure tank, an annular convex body is provided on the inner side wall of the body, and the annular convex body is coaxially arranged with the body. The outer end of the air guide groove is connected to the inner side wall of the annular convex body.

[0009] In the above-mentioned lid of the new pressure tank, the connecting joint is made of stainless steel material, and the connecting joint and the body are injection-molded into an integral structure. The connecting joint made of stainless steel material is not easily corroded, increasing the service life.

[0010] In the above-mentioned lid of the new pressure tank, a plurality of strip-shaped reinforcing ribs are provided on the outer end surface of the body, and the reinforcing ribs are evenly arranged around the axis of the connecting end. By providing the above-mentioned reinforcing ribs, the strength of the body is increased, thereby improving the compressive resistance of the body.

[0011] In the lid of the above-mentioned new pressure tank, an annular groove is provided on the outer side wall of the connection end, and the annular groove is coaxially arranged with the connection end, and a sealing ring is provided in the annular groove. By providing the above-mentioned sealing ring, it has the advantage of good sealing effect.

[0012] In the lid of the above-mentioned new pressure tank, the outer side wall of the body is a conical surface. The outer side wall of the body is a conical surface, and when the body is connected to the shell, it has the advantage of good sealing performance.

[0013] Compared with the prior art, the lid of the new pressure tank has the following advantages:

[0014] 1. When connected, the body is fixedly connected to the tank body of the pressure tank. Since the air guide groove is provided on the inner side wall of the body, the air guide groove is arranged along the radial direction of the body and is communicated with the inner side wall of the connection end, which is convenient for gas to be discharged along the air guide groove through the connection end, and can make the pressure tank play a better buffering effect;

[0015] 2. The middle part of the body is an arc surface recessed inward, which can improve the bearing capacity and compressive resistance of the body, improve the service life of the lid body, and the connection end is embedded with a connection joint made of metal material, which has the advantages of reliable connection and long service life;

[0016] 3. By providing the above-mentioned anti-rotation convex body, the connection firmness between the connection joint and the body is improved, thereby improving the service life;

[0017] 4. The connection joint is made of stainless steel material, which is not easy to corrode and improves the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of a pressure tank equipped with this lid.

[0019] Figure 2 is a three-dimensional schematic diagram of the lid of the new pressure tank.

[0020] Figure 3 is a three-dimensional schematic diagram of the lid of the new pressure tank from another angle.

[0021] Figure 4 is a front view schematic diagram of the lid of the new pressure tank.

[0022] Figure 5 is Figure 4 the A-A cross-sectional schematic diagram of.

[0023] In the figure, 1. Body; 2. Connection end; 3. Connection joint; 4. Arc part; 5. Air guide groove; 6. Anti-rotation convex body; 7. Annular convex body; 8. Reinforcing rib; 9. Annular groove; 10. Conical surface; 11. Sealing ring; 12. Tank body. Detailed implementation mode

[0024] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0025] As Figures 1 to 5 shown, the lid of the new pressure tank includes a disc-shaped body 1. The middle part of the body 1 has a cylindrical connecting end 2. The connecting end 2 is coaxially arranged with the body 1. The outer end of the connecting end 2 is embedded with a connecting joint 3 made of metal material. The connecting joint 3 is coaxially arranged with the connecting end 2. The middle part of the body 1 is an arc-shaped part 4 that is recessed inward and the arc-shaped part 4 is coaxially arranged with the body 1. A plurality of air guide grooves 5 are arranged on the inner side wall of the body 1 and the air guide grooves 5 are arranged along the radial direction of the body 1. The inner end of the air guide groove 5 is communicated with the inner side wall of the connecting end 2. The air guide grooves 5 are evenly arranged around the axis of the body 1. A ring-shaped convex body 7 is arranged on the inner side wall of the body 1 and the ring-shaped convex body 7 is coaxially arranged with the body 1. The outer end of the air guide groove 5 is connected to the inner side wall of the ring-shaped convex body 7.

[0026] On the outer side wall of the inner end of the connecting joint 3, a plurality of anti-rotation convex bodies 6 are evenly arranged. The number of anti-rotation convex bodies 6 is 2-8 and they are evenly arranged around the axis of the connecting joint 3. The connecting joint 3 is made of stainless steel material and the connecting joint 3 and the body 1 are injection-molded into an integral structure, which is not easy to corrode and improves the service life.

[0027] A plurality of strip-shaped reinforcing ribs 8 are arranged on the outer end face of the body 1. The reinforcing ribs 8 are evenly arranged around the axis of the connecting end 2, which improves the strength of the body 1 and thus improves the compressive capacity of the body 1. The outer side wall of the body 1 is a conical surface 10, which has the advantage of good sealing when the body 1 is connected to the shell.

[0028] A ring-shaped groove 9 is arranged on the outer side wall of the connecting end 2 and the ring-shaped groove 9 is coaxially arranged with the connecting end 2. A sealing ring 11 is arranged in the ring-shaped groove 9, which has the advantage of good sealing effect.

[0029] When connecting, the body 1 is fixedly connected to the tank body 12 of the pressure tank. Since the air guide grooves 5 are arranged on the inner side wall of the body 1, the air guide grooves 5 are arranged along the radial direction of the body 1 and are communicated with the inner side wall of the connecting end 2, it is convenient for gas to be discharged along the air guide grooves 5 through the connecting end 2, which can make the pressure tank play a better buffering effect. Since the middle part of the body 1 is an arc-shaped surface recessed inward, it can improve the bearing capacity and compressive capacity of the body 1, and improve the service life of the cover body. Since the connecting end 2 is embedded with a connecting joint 3 made of metal material, it has the advantages of reliable connection and long service life. By setting the above-mentioned anti-rotation convex bodies 6, the connection firmness between the connecting joint 3 and the body 1 is improved, thereby improving the service life.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar ways of substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0031] Although terms such as body 1, connecting end 2, connecting joint 3, arc portion 4, air guide groove 5, anti-rotation convex body 6, annular convex body 7, reinforcing rib 8, annular groove 9, tapered surface 10, sealing ring 11, and tank body 12 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for more conveniently describing and explaining the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. The lid of a new type of pressure tank, comprising a disc-shaped body (1), the middle of the body (1) having a cylindrical connecting end (2), the connecting end (2) being coaxially arranged with the body (1), characterized in that, The outer end of the connection end (2) is embedded with a connection joint (3) made of a metal material. The connection joint (3) is coaxially arranged with the connection end (2). The middle part of the body (1) is an arc-shaped part (4) sunken inward, and the arc-shaped part (4) is coaxially arranged with the body (1). A plurality of air guide grooves (5) are provided on the inner side wall of the body (1), and the air guide grooves (5) are arranged along the radial direction of the body (1). The inner ends of the air guide grooves (5) are communicated with the inner side wall of the connection end (2), and the air guide grooves (5) are evenly arranged around the axis of the body (1).

2. The lid of the novel pressure tank according to claim 1, characterized in that, A plurality of anti-rotation convex bodies (6) are evenly provided on the outer side wall of the inner end of the connection joint (3). The number of the anti-rotation convex bodies (6) is 2-8, and they are evenly arranged around the axis of the connection joint (3).

3. The lid of the novel pressure tank according to claim 1, characterized in that, A ring-shaped convex body (7) is provided on the inner side wall of the body (1), and the ring-shaped convex body (7) is coaxially arranged with the body (1). The outer ends of the air guide grooves (5) are connected to the inner side wall of the ring-shaped convex body (7).

4. The lid of the novel pressure tank according to claim 1 or 2 or 3, characterized in that, The connection joint (3) is made of stainless steel material, and the connection joint (3) and the body (1) are an injection-molded integral structure.

5. The lid of the novel pressure tank according to claim 1 or 2 or 3, characterized in that, A plurality of strip-shaped reinforcing ribs (8) are provided on the outer end face of the body (1), and the reinforcing ribs (8) are evenly arranged around the axis of the connection end (2).

6. The lid of the novel pressure tank according to claim 1 or 2 or 3, characterized in that, A ring-shaped groove (9) is provided on the outer side wall of the connection end (2), and the ring-shaped groove (9) is coaxially arranged with the connection end (2). A sealing ring (11) is provided in the ring-shaped groove (9).

7. The tank lid of the new pressure tank according to claim 1 or 2 or 3, characterized in that The outer side wall of the body (1) is a conical surface (10).

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