Flat welding type pressure-resistant barrel

Abstract

The utility model discloses a flat welding type pressure-resistant barrel, which belongs to the technical field of water pumps, comprises a barrel body and a gland fixedly arranged on one side of the barrel body, and is characterized in that a water inlet pipe is fixedly arranged at the central position of the gland, a water outlet pipe is fixedly arranged at the upper part of the barrel body, and an inner cover is arranged between the gland and the barrel body; the end, close to the pressing cover, of the inner cover is attached to the pressing cover, the end, close to the can body, of the inner cover is provided with an outer folding part, the end, close to the inner cover, of the can body is provided with an inner folding part, the outer circle face of the inner folding part is attached to the inner circle face of the outer folding part, and the outer circle face of the outer folding part is flush with the outer circle face of the can body. According to the utility model, the welding stability and flatness of the inner cover and the barrel body of the pressure-resistant barrel are effectively ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump technical field, concretely is a kind of flat welding type pressure barrel. BACKGROUND

[0002] Water pump is the common equipment in industrial and agricultural activities, and the pressure barrel is an important part of the water pump, which ensures the integrity of the water pump structure while bearing the pressure from the inside of the water pump. The traditional pressure barrel mainly includes a cover, an inner cover, a barrel body, a welding structure and other basic parts. The welding structure is welded at the connection position of the inner cover and the barrel body. The inner cover is connected with the cover and the barrel body, and the welding structure effectively ensures the sealing of the pressure barrel. However, the traditional pressure barrel has a problem: the edge of the inner cover near the barrel body is retracted and then extends towards the barrel body. The inner circular surface of the barrel body near the inner cover is attached to the outer circular surface of the retracted and extended part of the inner cover. The attachment position is prepared for welding. The retracted position of the inner cover is mostly curved. To ensure the attachment, the position where the barrel body is attached to the inner cover also has a certain curvature. This not only easily leads to insufficient stability of the welding position, but also easily leads to exposed and uneven metal after welding. In summary, the welding of the inner cover and the barrel body of the traditional pressure barrel is unstable and uneven. Based on this situation, how to ensure the stable and even welding of the inner cover and the barrel body of the pressure barrel has become an urgent problem for relevant technical personnel to solve. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of flat welding type pressure barrel.

[0004] A kind of flat welding type pressure barrel, including barrel body, the barrel body one side fixed setting gland, it is characterized in that: the center position of the gland fixed setting water inlet pipe, the barrel body upper part fixed setting water outlet pipe, the gland with the barrel body between setting inner cover, the inner cover is close to the gland one end and is attached to the gland, the inner cover is close to the barrel body one end and is set outer folding part, the barrel body is close to the inner cover one end and is set inner folding part, the outer circular surface of the inner folding part is attached to the inner circular surface of the outer folding part, the outer circular surface of the outer folding part is flush with the outer circular surface of the barrel body.

[0005] Further, the inner folding part is perpendicular to the ladder shape.

[0006] Further, the water inlet pipe is close to the gland one end, and the water outlet pipe is close to the barrel body one end, and the water inlet pipe is set to be clamped, and the outer circular surface of the clamping part of the water inlet pipe is attached to the inner circular surface of the inner cover, and the outer circular surface of the clamping part of the water outlet pipe is attached to the barrel body.

[0007] Further, the screw hole is set through the four corners of the gland.

[0008] Further, the lower part of the barrel body is provided with a first exhaust screw, the first exhaust screw is threadedly connected with the barrel body, the upper part of the gland is provided with a second exhaust screw, the second exhaust screw is threadedly connected with the inner cover, and the inner cover of the barrel body is provided with a sealing ring at the position corresponding to the first exhaust screw.

[0009] The flat welding type pressure-resistant barrel has the advantages that:

[0010] 1. The inner folding part is in a vertical ladder shape, and the outer circular surface of the outer folding part is flush with the outer circular surface of the barrel body, which effectively ensures the flat and close fit of the inner cover and the barrel body.

[0011] 2. The screw holes in the four corners of the gland only need to be matched with the matched long bolts, so as to ensure the close connection between the pressure-resistant barrel and the water pump body, thereby effectively ensuring the convenience of installation of the pressure-resistant barrel, and effectively ensuring the close fit of the pressure-resistant barrel and the water pump body. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, but it is not a limitation on the protection scope of the present application.

[0013] Figure 1 It is a front structure schematic view of the present application;

[0014] Figure 2 It is a back structure schematic view of the present application;

[0015] Figure 3 It is an internal structure schematic view of the present application;

[0016] Figure 4 It is a cross-sectional structure schematic view of the present application;

[0017] Figure 5 It is Figure 4 It is a local enlarged view of A in the middle.

[0018] 1-barrel body, 2-first exhaust screw, 3-gland, 4-water inlet pipe, 5-second exhaust screw, 6-sealing ring, 7-water outlet pipe, 8-inner cover, 9-outer folding part, 10-clamping part, 11-inner folding part. DETAILED DESCRIPTION

[0019] For the purpose of making the explanation clearer, the flat welding type pressure-resistant bucket of the utility model is further described in connection with the drawings of the specification.

[0020] A flat welding type pressure-resistant bucket, comprising a barrel body 1, the barrel body 1 one side fixedly arranged gland 3, it is characterized in that: the water inlet pipe 4 is fixedly arranged in the center position of the gland 3, the water outlet pipe 7 is fixedly arranged on the upper portion of the barrel body 1, the inner cover 8 is arranged between the gland 3 and the barrel body 1, the inner cover 8 is close to the gland 3 one end and is attached to the gland 3, the outer folding part 9 is arranged on the inner cover 8 close to the barrel body 1 one end, the barrel body 1 close to the inner cover 8 one end is provided with the inner folding part 11, the outer circle surface of the inner folding part 11 is attached to the inner circle surface of the outer folding part 9, and the outer circle surface of the outer folding part 9 is flush with the outer circle surface of the barrel body 1.

[0021] Further, the inner folding part 11 is vertically stepped.

[0022] Further, the water inlet pipe 4 close to the gland 3 one end, the water outlet pipe 7 close to the barrel body 1 one end are all provided with clamping parts 10, the outer circle surface of the clamping part 10 of the water inlet pipe 4 is attached to the inner circle surface of the inner cover 8, and the outer circle surface of the clamping part 10 of the water outlet pipe 7 is attached to the barrel body 1.

[0023] Further, the four corners of the gland 3 are all provided with threaded holes.

[0024] Further, the first exhaust screw 2 is arranged on the lower portion of the barrel body 1, the first exhaust screw 2 is threadedly connected with the barrel body 1, the second exhaust screw 5 is arranged on the upper portion of the gland 3, the second exhaust screw 5 is threadedly connected with the inner cover 8, and the sealing ring 6 is arranged on the corresponding position of the first exhaust screw 2 in the barrel body 1 and the corresponding position of the second exhaust screw 5 in the inner cover 8.

[0025] The working principle of the flat welding type pressure-resistant bucket of the utility model is as follows: the water inlet pipe 4 is welded with the gland 3 and the water outlet pipe 7 is welded with the barrel body 1 at the position of the clamping part 10, the inner folding part 11 is vertically stepped, the outer circle surface of the inner folding part 11 is attached to the inner circle surface of the outer folding part 9, and the outer circle surface of the outer folding part 9 is flush with the outer circle surface of the barrel body 1, so that the inner cover 8 is attached to the barrel body 1, the position of the outer folding part 9 and the inner folding part 11 is welded, the attachment of the inner cover 8 and the barrel body 1 makes the welding also tend to be flat, the long bolt is screwed into the threaded hole of the four corners of the gland 3, until the long bolt tail is completely threadedly connected with the water pump body, thus the installation of the pressure-resistant bucket is completed, at this time, the barrel body 1 is tightly connected with the water pump body, the water pump is started, the inner shaft of the water pump drives the impeller to rotate, the water in the water inlet pipe 4 is discharged by the water outlet pipe 7 after being centrifugally pressurized by the impeller, in this process, the pressure in the water pump is high, the pressure-resistant bucket stably bears the pressure, and the flat welding makes the pressure-resistant bucket stable even when bearing the pressure.

[0026] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A flat-welded pressure-resistant bucket comprising a bucket body, a gland being fixedly arranged on one side of the bucket body, characterized in that: The water inlet pipe is fixedly arranged at the center of the cover, the water outlet pipe is fixedly arranged at the upper part of the barrel body, the inner cover is arranged between the cover and the barrel body, the inner cover is attached to the cover at one end close to the cover, the outer folded part is arranged at one end of the inner cover close to the barrel body, the inner folded part is arranged at one end of the barrel body close to the inner cover, the outer circular surface of the inner folded part is attached to the inner circular surface of the outer folded part, and the outer circular surface of the outer folded part is flush with the outer circular surface of the barrel body.

2. The flat-welded pressure tank according to claim 1, wherein The inner folded part is in vertical ladder shape.

3. The flat-welded pressure vessel according to claim 1, wherein The water inlet pipe is fixedly arranged at the center of the cover, the water outlet pipe is fixedly arranged at the upper part of the barrel body, the inner cover is arranged between the cover and the barrel body, the inner cover is attached to the cover at one end close to the cover, the outer folded part is arranged at one end of the inner cover close to the barrel body, the inner folded part is arranged at one end of the barrel body close to the inner cover, the outer circular surface of the inner folded part is attached to the inner circular surface of the outer folded part, and the outer circular surface of the outer folded part is flush with the outer circular surface of the barrel body.

4. The flat-welded pressure tank according to claim 1, wherein Screw holes are arranged at the four corners of the cover.

5. The flat-welded pressure vessel according to claim 1, wherein The first exhaust screw is arranged at the lower part of the barrel body, the second exhaust screw is arranged at the upper part of the cover, and the sealing ring is arranged at the corresponding position of the first exhaust screw inside the barrel body and the corresponding position of the second exhaust screw inside the inner cover.

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