A leak-tight welded sealed cavity

Abstract

The utility model discloses a kind of anti-leakage welding sealing cavities, it is related to welding sealing cavity technical field, including sealing cavity main body, the front end of sealing cavity main body is fixedly installed with connector, the outer circular face front side of connector is fixedly connected with welding plate, the front end of connector is close to outer circular face part and is equipped with first ring groove.The anti-leakage welding sealing cavity, compared with the existing ordinary welding sealing cavity, first sealing ring and second sealing ring, in the position of first ring groove and second ring groove, form two layers of inner and outer closely adhered sealing layer, so that it can effectively avoid the leakage situation of welding point after sealing cavity welding, welding point is not directly acting in connector part, that is, after firm welding, connector can still ensure its form, prevent the situation of welding damage or connector corrosion after welding, that is, it can ensure the stability of connector surface sealing element, to improve the sealing practical stability of first sealing ring and second sealing ring.

Description

Technical Field

[0001] This utility model relates to the field of welded sealing cavity technology, specifically a leak-proof welded sealing cavity. Background Technology

[0002] The sealing cavity is a stationary shell component that directly encloses the sealing cavity in a mechanical seal system. Its main function is to provide a space for the sealing medium and support the operation of the sealing element. Its structural forms are divided into integral and split types, and it needs to meet different pressure levels and operating conditions.

[0003] In existing welded sealing cavities, the joint of the sealing cavity is directly welded to the welded part during welding. The sealing method relies entirely on the weld point. However, the different welding strengths lead to variations in the compressive strength of the weld points throughout the cavity. As a result, the weld point will break directly from the weakest point under pressure. Even if the weld point can seal, it is more prone to damage after rusting and corrosion. Once damaged, the weld point can no longer provide an effective seal, causing the sealing cavity to fail to seal and affecting its use.

[0004] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings and proposed a leak-proof welded sealing cavity. Utility Model Content

[0005] The purpose of this invention is to provide a leak-proof welded sealing cavity to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof welded sealing cavity, comprising a sealing cavity body, a connector fixedly installed at the front end of the sealing cavity body, a welding plate fixedly connected to the front side of the outer circular surface of the connector, a first annular groove formed near the outer circular surface of the front end of the connector, a second annular groove formed near the inner circular surface of the front end of the connector, a first sealing ring fixedly connected to the front side of the inner surface of the first annular groove, a second sealing ring fixedly connected to the front side of the inner surface of the second annular groove, and spring pieces fixedly connected to the rear sides of the inner surfaces of both the first and second annular grooves.

[0007] Preferably, the welding plate is configured as an annular shape, and the thickness of the welding plate is between 30mm and 80mm.

[0008] Preferably, both the first sealing ring and the second sealing ring are made of rubber, and both the first sealing ring and the second sealing ring are expanded rubber rings, and the front surfaces of both the first sealing ring and the second sealing ring protrude from the groove.

[0009] Preferably, the spring is shaped like a ring, the same as the groove, and the spring is a circumferential "V" shape with a forward bulge in the middle.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model, through the arrangement of a connector, welding plate, first annular groove, second annular groove, first sealing ring, second sealing ring, and spring piece, utilizes the connection of the connector and welding point. The welded connection portion fits snugly against the front end of the connector. At this time, the welded connection portion pushes the first and second sealing rings into the first and second annular grooves, causing them to contract. Furthermore, the first and second sealing rings also compress the raised portion of the spring piece, causing it to indent rearward. The elastic expansion force of the first and second sealing rings causes them to fill the entire groove, while the compressed raised portion of the spring piece generates a forward thrust, allowing the front surfaces of the first and second sealing rings to... The surface of the welded joint is tightly fitted, so that the first and second sealing rings form two tightly fitted sealing layers at the positions of the first and second annular grooves. This effectively prevents leakage at the weld point after the sealing cavity is welded. Furthermore, during welding, the entire connector is welded to the workpiece through the welding plate, and the weld point does not directly act on the connector. That is, after a firm weld, the connector can still maintain its shape, preventing weld damage or corrosion. This ensures the stability of the surface seal of the connector, thereby improving the sealing stability of the first and second sealing rings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0013] Figure 2 This is a schematic diagram showing the disassembled structure of the connector and sealing ring of this utility model;

[0014] Figure 3 This is a cross-sectional view of the connector of this utility model.

[0015] In the figure: 1. Sealing cavity body; 2. Connector; 3. Welding plate; 4. First annular groove; 5. Second annular groove; 6. First sealing ring; 7. Second sealing ring; 8. Spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-3As shown, a leak-proof welded sealing cavity includes a sealing cavity body 1. A connector 2 is fixedly installed at the front end of the sealing cavity body 1. A welding plate 3 is fixedly connected to the front side of the outer circular face of the connector 2. A first annular groove 4 is formed at the front end of the connector 2 near the outer circular face. A second annular groove 5 is formed at the front end of the connector 2 near the inner circular face. A first sealing ring 6 is fixedly connected to the front side of the inner surface of the first annular groove 4. A second sealing ring 7 is fixedly connected to the front side of the inner surface of the second annular groove 5. Spring pieces 8 are fixedly connected to the rear sides of the inner surfaces of both the first annular groove 4 and the second annular groove 5.

[0018] By adopting the above technical solution, after the connector 2 is connected to the welding point, the welding connection part is in contact with the front end of the connector 2. The welding connection part will push the first sealing ring 6 and the second sealing ring 7 into the first annular groove 4 and the second annular groove 5 to shrink. The welding part can then be in contact with the first sealing ring 6 and the second sealing ring 7, thereby forming a double seal at the contact surface.

[0019] Furthermore, when the first sealing ring 6 and the second sealing ring 7 contract, they will also compress the spring sheet 8. The spring sheet 8 provides the first sealing ring 6 and the second sealing ring 7 with a force to move forward, thereby improving the tightness of the first sealing ring 6 and the second sealing ring 7 in contact with the welding surface.

[0020] The entire connector 2 is welded to the welding part through the welding plate 3. The welding point does not directly act on the connector 2. That is, after the welding is firm, the connector 2 can still maintain its shape and prevent welding damage or corrosion of the connector 2 after welding.

[0021] Furthermore, the welding plate 3 is set in a circular shape, and the thickness of the welding plate 3 is between 30mm and 80mm.

[0022] By adopting the above technical solution, the welding plate 3 has a large thickness and the welding thickness of the welding point is higher, which can withstand greater impact and thus prevent the welding point from breaking.

[0023] Furthermore, both the first sealing ring 6 and the second sealing ring 7 are made of rubber, and both the first sealing ring 6 and the second sealing ring 7 are expanded rubber rings, and the front surfaces of both the first sealing ring 6 and the second sealing ring 7 protrude from the groove.

[0024] By adopting the above technical solution, after the first sealing ring 6 and the second sealing ring 7 are compressed, their own elastic expansion force will cause them to fill the entire groove, thereby sealing the groove part as well.

[0025] Furthermore, the shape of the spring piece 8 is set to be the same as that of the groove, and the spring piece 8 is a circumferential "V" shape with the center protruding forward.

[0026] By adopting the above technical solution, the spring 8 generates a forward thrust after being compressed by its central bulge, thereby pushing the first sealing ring 6 and the second sealing ring 7.

[0027] Working principle: When using this leak-proof welded sealing cavity, firstly, after the sealing cavity body 1 is connected to the welding point using the connector 2, the welded connection part fits against the front end of the connector 2. At this time, the welded connection part will push the first sealing ring 6 and the second sealing ring 7 into the first annular groove 4 and the second annular groove 5, and the first sealing ring 6 and the second sealing ring 7 will also squeeze the raised part in the middle of the spring piece 8 to the rearward side. At this time, the elastic expansion force of the first sealing ring 6 and the second sealing ring 7 will make themselves fill the entire groove, and the raised part in the middle of the spring piece 8 will generate a forward thrust after compression, so that the front surface of the first sealing ring 6 and the second sealing ring 7 can fit tightly against the surface of the welded connection part, that is... This design creates a tight-fitting sealing layer between the first sealing ring 6 and the second sealing ring 7 at the positions of the first annular groove 4 and the second annular groove 5. This effectively prevents leakage at the weld point after the sealing cavity is welded. Furthermore, during welding, the entire connector 2 is welded to the workpiece via the welding plate 3, and the weld point does not directly act on the connector 2. This ensures that the connector 2 maintains its shape after a firm weld, preventing weld damage or corrosion. This ensures the stability of the sealing element on the surface of the connector 2, thereby improving the sealing stability of the first sealing ring 6 and the second sealing ring 7. This is the working principle of the leak-proof welded sealing cavity.

Claims

1. A leak-proof welded sealing cavity, comprising a sealing cavity body (1), characterized in that, A connector (2) is fixedly installed at the front end of the sealing cavity body (1). A welding plate (3) is fixedly connected to the front side of the outer circular face of the connector (2). A first annular groove (4) is opened at the front end of the connector (2) near the outer circular face. A second annular groove (5) is opened at the front end of the connector (2) near the inner circular face. A first sealing ring (6) is fixedly connected to the front side of the inner surface of the first annular groove (4). A second sealing ring (7) is fixedly connected to the front side of the inner surface of the second annular groove (5). A spring piece (8) is fixedly connected to the rear side of the inner surface of both the first annular groove (4) and the second annular groove (5).

2. The leak-proof welded sealing cavity according to claim 1, characterized in that, The welding plate (3) is configured as an annular shape, and the thickness of the welding plate (3) is between 30mm and 80mm.

3. The leak-proof welded sealing cavity according to claim 1, characterized in that, The first sealing ring (6) and the second sealing ring (7) are both made of rubber material, and the first sealing ring (6) and the second sealing ring (7) are expanded rubber rings, and the front surfaces of the first sealing ring (6) and the second sealing ring (7) protrude from the groove.

4. The leak-proof welded sealing cavity according to claim 1, characterized in that, The shape of the spring piece (8) is set to be the same as that of the groove, and the spring piece (8) is a circumferential "V" shape with the center protruding forward.

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