CN215256982U

CN215256982U - Fluid director for pump

Info

Publication number: CN215256982U
Application number: CN202121450709.3U
Authority: CN
Inventors: 叶龙; 王家敏; 薛灵豪
Original assignee: Zhejiang Shimge Pump Co Ltd
Current assignee: Zhejiang Shimge Pump Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-21
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to a divertor for pump solves the problem that current divertor leaked, the technical scheme of adoption: the guide cylinder bottom plate is provided with a plurality of guide cylinder inner concave points, the guide cylinder inner concave points face the concave of the inner cavity direction of the guide cylinder, the guide vane is provided with a first outer convex point, the first outer convex point and the guide cylinder inner concave points are arranged in parallel, and the first outer convex point is inserted into the guide cylinder inner concave points and welded. The method has the following effects: the concave points of the guide cylinder and the concave points of the circular cover plate are formed on the bottom plate and the circular cover plate of the guide cylinder respectively, the concave points of the guide cylinder and the concave points of the circular cover plate are concave blind holes with one open end and the other closed end, the guide blades are provided with corresponding bulges, the bulges are inserted into the corresponding concave parts and concave parts one by one and then welded, and the leakage of the fluid director is avoided.

Description

Fluid director for pump

Technical Field

The utility model relates to a divertor for pump especially relates to a avoid divertor for pump of leaking.

Background

The existing fluid director for the pump is generally that a plurality of small holes which are uniformly distributed are arranged on a bottom plate and a circular cover plate of a guide cylinder, corresponding bulges are arranged on a guide vane, and the bulges are inserted into the small holes one by one and are welded. Due to the fact that the situations of insufficient soldering, missing soldering and the like easily exist during welding, the problem that the fluid director is prone to leakage is solved.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned problem that prior art exists and provide a divertor for pump, form the draft tube indent point of concave yield and the dome board concave point of concave play respectively on the bottom plate of draft tube and dome board (towards draft tube inner chamber direction for interior, otherwise for outer, interior is corresponding to advancing, the outer play that corresponds), the draft tube indent point of concave yield and the dome board concave point of concave play are the other one end confined blind hole of one end opening, set up the arch of correspondence on the water conservancy diversion blade, protruding one-to-one inserts the concave yield and the concave play of corresponding, the rewelding, avoid setting up the aperture that runs through and the problem that takes place to leak appears on the bottom plate of draft tube and dome board.

The above technical purpose of the present invention is mainly solved by the following technical solutions: deflector for pump, including the draft tube, with the dome board that draft tube bottom plate interval set up, press from both sides and establish and fix the guide vane between draft tube bottom plate and dome board, the center of draft tube bottom plate sets up the shaft hole, the draft tube bottom plate correspond to shaft hole department cooperation floating seal circle, the draft tube bottom plate is right the sealing washer forms the outer end spacing, set up interior spacing subassembly on the draft tube bottom plate, interior spacing subassembly is right the sealing washer forms inner spacing, its characterized in that set up a plurality of draft tube indent points on the draft tube bottom plate, draft tube indent point orientation the concave yield of the inner chamber direction of draft tube, set up first outer bump on the guide vane, first evagination with draft tube indent point is to setting up, first evagination point inserts draft tube indent point and welding.

As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure: the round cover plate is provided with a round cover plate concave point, the round cover plate concave point deviates from the direction of the inner cavity of the guide cylinder and is concave, the guide blade is provided with a corresponding second outer convex point, and the second outer convex point is inserted into the round cover plate concave point and is welded.

Form the draft tube indent point of concave yield and the dome board concave point of concave-out respectively on the bottom plate of draft tube and dome board (towards draft tube inner chamber direction for interior, vice versa outside, interior corresponding to advance, outer corresponding play), the draft tube indent point of concave yield and the dome board concave point of concave-out are the blind hole that one end opening other one end was sealed, set up the arch that corresponds on the guide vane, protruding one-by-one inserts corresponding concave yield and concave-out, the rewelding, avoid setting up the aperture that runs through and the problem that takes place to leak appears on the bottom plate of draft tube and dome board.

In order to stably fix the guide vane, each guide vane is provided with a first outer salient point and a second outer salient point.

The limiting assembly comprises an outer blocking cover ring and an outer blocking cover seat ring, the section of the outer blocking cover ring is L-shaped, the section of the outer blocking cover seat ring is Z-shaped, the head of the outer blocking cover seat ring is fixed on the inner wall of the guide shell bottom plate, the foot of the outer blocking cover seat ring is pressed on the outer annular wall of the floating sealing ring in a Z shape, the section of the outer blocking cover ring is L-shaped, the foot of the L-shaped outer blocking cover ring is buckled and pressed on the bent part of the outer blocking cover seat ring in an interference fit mode, and the inner end of the floating sealing ring is pressed on the shoulder annular surface of the outer blocking cover ring in an L shape.

The outer end of the floating sealing ring is pressed against the inner wall of the guide cylinder bottom plate, and the shaft hole of the floating sealing ring and the shaft hole in the guide cylinder bottom plate are arranged coaxially.

The diameter of the shaft hole on the floating seal ring is smaller than that of the shaft hole on the guide shell bottom plate.

The utility model discloses beneficial effect who has: the concave points of the guide cylinder and the concave points of the circular cover plate are formed on the bottom plate and the circular cover plate of the guide cylinder respectively, the concave points of the guide cylinder and the concave points of the circular cover plate are concave blind holes with one open end and the other closed end, the guide blades are provided with corresponding bulges, the bulges are inserted into the corresponding concave parts and concave parts one by one and then welded, and the leakage of the fluid director is avoided.

Drawings

Fig. 1 is a schematic diagram of an explosive structure of the present invention.

Fig. 2 is another schematic diagram of the explosion structure of the present invention.

Fig. 3 is a schematic view of the structure of fig. 2 from another perspective.

Fig. 4 is a schematic sectional structure diagram of the present invention.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1-4, the fluid director for pump, including draft tube 1, with the dome board 2 that draft tube bottom plate interval set up, press from both sides and establish and fix the guide vane 3 between draft tube bottom plate and dome board, the center of draft tube bottom plate sets up shaft hole 11, the draft tube bottom plate corresponds to shaft hole department cooperation one floating seal 4, draft tube bottom plate 12 is right it is spacing that the sealing washer forms the outer end, set up interior spacing subassembly on the draft tube bottom plate, interior spacing subassembly is right the sealing washer forms inner spacing. The guide shell bottom plate 12 is provided with a plurality of guide shell inner concave points 13, the guide shell inner concave points face the concave of the inner cavity direction of the guide shell, the guide vane is provided with a first outer convex point 31, the first outer convex point and the guide shell inner concave point are arranged in parallel, and the first outer convex point 31 is inserted into the guide shell inner concave points 13 and welded.

As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure: set up the dome board concave point on the dome board, the dome board concave point deviates from the inner chamber direction of draft tube is concave out, set up corresponding second outer bump 32 on the guide vane, the outer bump of second inserts dome board concave point and welding.

In order to stably fix the guide vane, a first outer salient point 31 and a second outer salient point 32 are arranged on each guide vane.

The limiting assembly comprises an outer cover blocking ring 5 and an outer cover blocking seat ring 6, the cross section of the outer cover blocking ring is L-shaped, the cross section of the outer cover blocking seat ring is Z-shaped, the head 61 of the outer cover blocking seat ring is fixed on the inner wall of the guide shell bottom plate, the foot 62 of the outer cover blocking seat ring is pressed on the outer annular wall of the floating sealing ring in a Z-shaped mode, the cross section of the outer cover blocking ring 5 is L-shaped, the foot 51 of the L-shaped outer cover blocking ring is buckled on the bent portion 63 of the outer cover blocking seat ring in an interference fit mode, and the inner end of the floating sealing ring is pressed on the annular surface of the shoulder 52 of the L-shaped outer cover blocking ring.

The outer wall of the floating seal ring is provided with a notch 41, the foot part 62 of the outer shield seat ring 6 is provided with a radial inner convex part 62-1, and the inner convex part 62-1 is matched with the notch 41 to form a circumferential rotation stopping effect on the floating seal ring.

The outer end of the floating sealing ring is pressed against the inner wall of the guide shell bottom plate 12, and the shaft hole 42 of the floating sealing ring and the shaft hole 11 on the guide shell bottom plate are coaxially arranged. The diameter of the shaft hole 42 on the floating sealing ring is smaller than that of the shaft hole 11 on the bottom plate of the guide shell.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. In the above embodiments, the present invention may be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Deflector for pump, including the draft tube, with the dome board that draft tube bottom plate interval set up, press from both sides and establish and fix the guide vane between draft tube bottom plate and dome board, the center of draft tube bottom plate sets up the shaft hole, the draft tube bottom plate correspond to shaft hole department cooperation floating seal circle, the draft tube bottom plate is right the sealing washer forms the outer end spacing, set up interior spacing subassembly on the draft tube bottom plate, interior spacing subassembly is right the sealing washer forms inner spacing, its characterized in that set up a plurality of draft tube indent points on the draft tube bottom plate, draft tube indent point orientation the concave yield of the inner chamber direction of draft tube, set up first outer bump on the guide vane, first evagination with draft tube indent point is to setting up, first evagination point inserts draft tube indent point and welding.

2. The fluid director for pump according to claim 1, characterized in that the dome plate is provided with dome plate concave points, the dome plate concave points are recessed away from the direction of the inner cavity of the guide cylinder, the guide vane is provided with corresponding second outer convex points, and the second outer convex points are inserted into the dome plate concave points and welded.

3. The fluid director for a pump according to claim 2, wherein each of said vanes is provided with a first outer protrusion and a second outer protrusion.

4. The fluid director for pump according to claim 1 or 2 or 3, characterized in that the limiting component comprises an outer cover ring and an outer cover seat ring, the outer cover ring has an L-shaped cross section, the outer cover seat ring has a Z-shaped cross section, the head of the Z-shaped outer cover seat ring is fixed on the inner wall of the bottom plate of the fluid director, the foot of the Z-shaped outer cover seat ring is pressed against the outer wall of the floating seal ring, the cross section of the outer cover ring is L-shaped, the foot of the L-shaped outer cover ring is pressed on the bending part of the outer cover seat ring in an interference fit manner, and the inner end of the floating seal ring is pressed on the shoulder ring surface of the L-shaped outer cover ring.

5. The fluid director for pump according to claim 1 or 2 or 3, characterized in that the outer end of the floating seal ring is pressed against the inner wall of the bottom plate of the fluid guide cylinder, and the shaft hole of the floating seal ring and the shaft hole of the bottom plate of the fluid guide cylinder are coaxially arranged.

6. The fluid director for pump according to claim 4, characterized in that the outer end of the floating seal ring is pressed against the inner wall of the bottom plate of the fluid guide cylinder, and the shaft hole of the floating seal ring and the shaft hole of the bottom plate of the fluid guide cylinder are coaxially arranged.

7. A deflector for a pump according to claim 1, 2 or 3, wherein the diameter of the axial hole in the floating seal ring is smaller than the diameter of the axial hole in the bottom plate of the deflector cylinder.

8. The deflector for pump according to claim 4, wherein the diameter of the shaft hole of the floating seal ring is smaller than the diameter of the shaft hole of the deflector cylinder base plate.

9. The deflector for a pump according to claim 5, wherein a diameter of an axial hole of the floating seal ring is smaller than a diameter of an axial hole of the deflector cylinder base plate.

10. The deflector for a pump according to claim 6, wherein a diameter of an axial hole of the floating seal ring is smaller than a diameter of an axial hole of the deflector cylinder base plate.