CN210509712U - Fluoroplastic pump impeller reversal-preventing device - Google Patents

Abstract

The utility model discloses a fluoroplastics pump prevents impeller reversal device, including the impeller, the impeller pass through the left end of fix with screw at the pump shaft, the impeller right-hand member be provided with a plurality of recess, the impeller right-hand member be provided with and prevent the anti-scotch ring, the anti-scotch ring pass through the fix with screw in the tool withdrawal groove of pump shaft, the anti-scotch ring left end of preventing be provided with a plurality of lug, the recess of lug and impeller right-hand member cooperate. The beneficial effects of the utility model, the impeller drops when adopting this anti-reverse device can effectively prevent that the pump shaft from taking place the reversal, reduces the emergence of incident, has improved the life of fluoroplastic pump.

Description

Fluoroplastic pump impeller reversal-preventing device

Technical Field

The utility model relates to a pump valve technical field, concretely relates to fluoroplastics pump prevents impeller reversal device.

Background

The fluoroplastic lined chemical centrifugal pump is designed and produced according to international standard and combined with the processing technology of a non-metal pump. The pump body of the existing fluoroplastic-lined chemical centrifugal pump adopts a metal shell with a lining of fluorinated ethylene propylene (F46), the pump cover, the impeller and the shaft sleeve are integrally sintered and pressed and formed by wrapping fluoroplastics outside a metal insert, the shaft seal adopts a tetrafluoro filling material, and an inlet and an outlet are reinforced by cast steel bodies.

Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell.

The impeller of the fluoroplastic pump in the prior art often rotates reversely, so that the impeller screw of the pump falls off, and accidents are caused.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing an impeller reversal device is prevented to fluoroplastics pump.

In order to realize the technical purpose, the utility model discloses a scheme is:

preferably, a fluoroplastics pump impeller reversal device of preventing, includes the impeller, its characterized in that: the impeller is fixed at the left end of the pump shaft through screws, a plurality of grooves are formed in the right end of the impeller, an anti-reverse retaining ring is arranged at the right end of the impeller, the anti-reverse retaining ring is fixed in a tool withdrawal groove of the pump shaft through screws, a plurality of convex blocks are arranged at the left end of the anti-reverse retaining ring, and the convex blocks are matched with the grooves at the right end of the impeller.

Preferably, the number of the screws is two, and the angle between the two screws is set to be 90 °.

Preferably, the material of the anti-reverse stop ring is rigid plastic.

Preferably, a gap exists between the convex block and the groove.

The beneficial effects of the utility model, the impeller drops when adopting this anti-reverse device can effectively prevent that the pump shaft from taking place the reversal, reduces the emergence of incident, has improved the life of fluoroplastic pump.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the impeller.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1, the embodiment of the present invention is

The utility model provides a fluoroplastics pump prevents impeller reversal device, includes impeller 1, its characterized in that: the impeller 1 is fixed at the left end of the pump shaft through a screw, a plurality of grooves 7 are formed in the right end of the impeller 1, an anti-reverse retaining ring 3 is arranged at the right end of the impeller 1, the anti-reverse retaining ring 3 is fixed in a tool withdrawal groove 5 of the pump shaft through a screw 4, a plurality of convex blocks 6 are arranged at the left end of the anti-reverse retaining ring 3, and the convex blocks 6 are matched with the grooves 7 in the right end of the impeller 1; the number of the screws 4 is two, and the angle between the two screws 4 is 90 degrees; the material of the anti-reverse retaining ring 3 is rigid plastic; a gap exists between the convex block 6 and the groove 7.

In the specific implementation:

the utility model discloses during the installation, will prevent the lug 6 embedding impeller 1's of anti-reverse retaining ring 3 recess 7, pass screw 4 and prevent that anti-reverse retaining ring 3 screws into the tool withdrawal groove 5 of pump shaft 2, adopt this anti-reverse device can effectively prevent that the pump shaft from taking place the impeller when reversing and droing, reduce the emergence of incident, improved the life of fluoroplastic pump.

The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.

Claims (4)

1. The utility model provides a fluoroplastics pump prevents impeller reversal device, includes the impeller, its characterized in that: the impeller is fixed at the left end of the pump shaft through screws, a plurality of grooves are formed in the right end of the impeller, an anti-reverse retaining ring is arranged at the right end of the impeller, the anti-reverse retaining ring is fixed in a tool withdrawal groove of the pump shaft through screws, a plurality of convex blocks are arranged at the left end of the anti-reverse retaining ring, and the convex blocks are matched with the grooves at the right end of the impeller.

2. A fluoroplastic pump impeller reversal prevention device as claimed in claim 1 wherein: the number of the screws is two, and the angle between the two screws is 90 degrees.

3. A fluoroplastic pump impeller reversal prevention device as claimed in claim 1 wherein: the material of the anti-reverse retaining ring is rigid plastic.

4. A fluoroplastic pump impeller reversal prevention device as claimed in claim 1 wherein: and a gap is reserved between the convex block and the groove.

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