CN214092446U

CN214092446U - Noise reduction pump head

Info

Publication number: CN214092446U
Application number: CN202023081958.8U
Authority: CN
Inventors: 钟廷生
Original assignee: Taizhou Degee Pump Technology Co ltd
Current assignee: Taizhou Degee Pump Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-31
Anticipated expiration: 2030-12-18

Abstract

The utility model provides a pump head of making an uproar falls. The utility model comprises a pump head main body, a water flow channel and an impeller chamber are arranged in the pump head main body, a baffle plate is arranged in the pump head main body, the baffle plate is positioned in the water flow channel and is used for separating the water flow channel into a water inlet channel and a water outlet channel, the water inlet channel, the impeller chamber and the water outlet channel are communicated in sequence, the end part of the baffle plate extends to the impeller chamber, and the end surface of the baffle plate close to the impeller chamber is a noise reduction surface; an impeller mounting seat is arranged in the impeller chamber, a fixing section is connected between the impeller mounting seat and the baffle plate, a shaft sheath is arranged on the impeller mounting seat, an extending piece is arranged on the shaft sheath, and the extending piece covers the fixing section; the end part of the extension piece extending to one side of the noise reduction surface is a noise reduction end, a leakage gap is reserved between the noise reduction end and the noise reduction surface, and the water inlet channel and the water outlet channel are communicated through the leakage gap. The whole internal operation noise is lower.

Description

Noise reduction pump head

Technical Field

The utility model relates to a pump head, in particular to a pump head of making an uproar falls.

Background

The traditional pump head internal structure comprises a pump body, a water inlet channel and a water outlet channel are arranged in the pump body, an impeller chamber is arranged between the water inlet channel and the water outlet channel, a water pump impeller is arranged in the impeller chamber and used for mounting a water pump impeller, the water pump impeller rotates, and the water pump impeller is used for pumping water in the water inlet channel to the water outlet channel.

In the working process of the traditional water pump, when water is squeezed into the water outlet channel by the water pump impeller, the high-pressure water of the part can directly impact the boundary edge between the water outlet channel and the impeller chamber, so that the operation noise of the pump body is high.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a pump head of making an uproar falls, and it reduces inside operating noise through setting up the earial drainage clearance.

In order to solve the technical problem, the technical scheme of the utility model is that:

a noise reduction pump head comprises a pump head main body, wherein a water flow channel and an impeller chamber are arranged in the pump head main body, a blocking plate is arranged in the pump head main body, the blocking plate is located in the water flow channel and used for dividing the water flow channel into a water inlet channel and a water outlet channel, the water inlet channel, the impeller chamber and the water outlet channel are communicated in sequence, the end part of the blocking plate extends to the impeller chamber, and the end face, close to the impeller chamber, of the blocking plate is a noise reduction face;

an impeller mounting seat is arranged in the impeller chamber, a fixing section is connected between the impeller mounting seat and the blocking plate, a shaft sheath is mounted on the impeller mounting seat, an extending piece is arranged on the shaft sheath, and the extending piece covers the fixing section;

the end part of the extension piece extending to one side of the noise reduction surface is a noise reduction end, a leakage gap is reserved between the noise reduction end and the noise reduction surface, and the leakage gap communicates the water inlet channel and the water outlet channel.

Through the technical scheme, the impeller rotates in the impeller chamber, water flow enters the impeller chamber from the water inlet channel, then the impeller pumps the water flow to the water outlet channel from the impeller chamber, and at the moment, a small part of water flow between the water inlet channel and the impeller chamber flows into a space between the water inlet channel and the impeller chamber from the drainage gap, so that the drainage purpose is achieved; similarly, when part of the air between the water inlet channel and the impeller chamber enters into the space between the water inlet channel and the impeller chamber from the leakage gap; so that the whole internal operation noise is low.

Preferably, the impeller mounting seat is provided with a first mounting hole, the middle of the shaft sheath is provided with a second mounting hole, the shaft sheath is provided with an annular protrusion, the annular protrusion and the second mounting hole are concentrically arranged, and the annular protrusion is correspondingly mounted in the first mounting hole.

Through the technical scheme, the annular bulge can be matched with the first mounting hole, so that the connection firmness between the shaft sheath and the impeller mounting seat is improved; in addition, the impeller can be correspondingly arranged on the annular bulge, so that the rotation stability of the impeller is improved.

Preferably, the noise reduction surface comprises an arc-shaped surface, and the circle center of the arc-shaped surface is concentric with the center of the impeller chamber.

Through above-mentioned technical scheme, when the impeller was rotatory, the rivers were thrown away from the outer circumference of impeller, and at this moment, the outer arc face of impeller and the cambered surface of arcwall face mutually supported, helped promoting the efficiency of drawing water of whole pump head.

Preferably, the noise reduction end is an arc end, and the radian of the noise reduction end is consistent with that of the arc surface.

Through above-mentioned technical scheme, fall the end of making an uproar and mutually support with the arcwall face, it is stable to form a width size, and whole clearance presents for the arc, and the noise reduction effect is better.

Preferably, the noise reduction surface further comprises a flat section, the arc-shaped surface is located on one side close to the water inlet channel, and the flat section is located on one side of the water outlet channel.

Through above-mentioned technical scheme, the impeller takes place to rotate in the impeller chamber, and rivers enter into the impeller chamber from the inhalant canal, then take out rivers to the exhalant canal from the impeller chamber by the impeller, and at this moment, rivers can produce the striking with the edge that the baffler is close to exhalant canal, owing to be provided with the tangent plane here, this tangent plane can effectively guide rivers and reduce the impact sound that rivers produced, and whole inside running noise is lower.

Preferably, the shaft sheath is made of stainless steel.

Through above-mentioned technical scheme, stainless steel has higher rust-resistant ability, promotes life.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural view of the embodiment in which the shaft sheath is separated from the pump head main body.

Reference numerals: 1. a pump head main body; 2. a water flow channel; 3. a water inlet channel; 4. a water outlet channel; 5. an impeller chamber; 6. a barrier plate; 7. a noise reduction surface; 71. an arc-shaped surface; 72. cutting into a plain noodles; 8. an impeller mounting seat; 9. a first mounting hole; 10. a shaft sheath; 11. a second mounting hole; 12. an annular projection; 13. a fixed section; 14. an extension piece; 15. a noise reduction end; 16. a bleed gap.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

A noise reduction pump head, see figure 1, comprises a pump head main body 1, a water flow channel 2 and an impeller chamber 5 are arranged in the pump head main body 1.

Referring to fig. 1, a blocking plate 6 is arranged in a pump head main body 1, the blocking plate 6 is located in a water flow channel 2 and is used for dividing the water flow channel 2 into a water inlet channel 3 and a water outlet channel 4, and the water inlet channel 3, an impeller chamber 5 and the water outlet channel 4 are communicated in sequence. An impeller installed in the impeller chamber 5 can pump water in the water inlet passage 3 toward the water outlet passage 4.

Referring to fig. 1, the baffle 6 ends up to the impeller chamber 5. The length direction of the baffle plate 6 passes through the center of the impeller chamber 5, and the length direction of the baffle plate 6 is perpendicular to the plane of the plane cutting surface 72.

Referring to fig. 1 and 2, the end surface of the blocking plate 6 close to the impeller chamber 5 is a noise reduction surface 7, the noise reduction surface 7 comprises an arc-shaped surface 71 and a flat tangent surface 72, the arc-shaped surface 71 is located at the side close to the water inlet channel 3, the flat tangent surface 72 is located at the side of the water outlet channel 4, and the flat tangent surface 72 is a plane.

Referring to fig. 2 and 3, the center of the arc surface 71 is concentric with the center of the impeller chamber 5.

Referring to fig. 3, an impeller mounting seat 8 is arranged in the impeller chamber 5, the impeller mounting seat 8 protrudes out of the inner side wall of the impeller chamber 5, a first mounting hole 9 is formed in the impeller mounting seat 8, the first mounting hole 9 is concentric with the center of the impeller chamber 5, and the first mounting hole 9 is used for mounting an impeller.

Referring to fig. 3, a shaft sheath 10 is further provided in the impeller chamber 5, and the material of the shaft sheath 10 is preferably stainless steel. The middle of the shaft sheath 10 is provided with a second mounting hole 11, the shaft sheath 10 is provided with an annular bulge 12, the annular bulge 12 and the second mounting hole 11 are concentrically arranged, and the annular bulge 12 is in interference fit with the first mounting hole 9, so that the shaft sheath 10 is stably mounted in the impeller chamber 5.

Referring to fig. 1 and 3, a fixed section 13 is connected between the impeller mounting seat 8 and the barrier plate 6, and the fixed section 13, the pump head main body 1, and the impeller mounting seat 8 are formed by integral casting.

Referring to fig. 3, an extension piece 14 is provided on the shaft sheath 10, and the extension piece 14 covers the fixing section 13.

Referring to fig. 2 and 3, the end of the extension piece 14 extending to the noise reduction surface 7 is a noise reduction end 15, a leakage gap 16 is left between the noise reduction end 15 and the noise reduction surface 7, and the leakage gap 16 communicates the water inlet channel 3 and the water outlet channel 4.

Wherein, referring to fig. 2, the noise reduction end 15 is an arc-shaped end, and the radian of the noise reduction end 15 is consistent with the radian of the arc-shaped surface 71.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a pump head of making an uproar falls, includes pump head main part (1), be equipped with rivers passageway (2), impeller chamber (5) in pump head main part (1), characterized by: a blocking plate (6) is arranged in the pump head main body (1), the blocking plate (6) is located in the water flow channel (2) and used for dividing the water flow channel (2) into a water inlet channel (3) and a water outlet channel (4), the water inlet channel (3), the impeller chamber (5) and the water outlet channel (4) are communicated in sequence, the end part of the blocking plate (6) extends to the impeller chamber (5), and the end face, close to the impeller chamber (5), of the blocking plate (6) is a noise reduction face (7);

an impeller mounting seat (8) is arranged in the impeller chamber (5), a fixing section (13) is connected between the impeller mounting seat (8) and the barrier plate (6), a shaft sheath (10) is mounted on the impeller mounting seat (8), an extending piece (14) is arranged on the shaft sheath (10), and the extending piece (14) covers the fixing section (13);

the extension piece (14) extend to fall the tip of making an uproar face (7) one side for fall end (15) of making an uproar, fall end (15) of making an uproar with fall and leave leakage flow clearance (16) between the face (7) of making an uproar, leakage flow clearance (16) communicate inhalant canal (3), inhalant canal (4) two.

2. A noise reducing pump head according to claim 1, wherein: be equipped with first mounting hole (9) on impeller mount pad (8), axle sheath (10) middle part is equipped with second mounting hole (11), be equipped with annular arch (12) on axle sheath (10), be concentric setting between annular arch (12) and second mounting hole (11), annular arch (12) correspond and install in first mounting hole (9).

3. A noise reducing pump head according to claim 1, wherein: the noise reduction surface (7) comprises an arc-shaped surface (71), and the circle center of the arc-shaped surface (71) is concentric with the center of the impeller chamber (5).

4. A noise reducing pump head according to claim 3, wherein: the noise reduction end (15) is an arc-shaped end, and the radian of the noise reduction end (15) is consistent with that of the arc-shaped surface (71).

5. A noise reduction pump head as claimed in claim 3 or 4, wherein: the noise reduction surface (7) further comprises a flat tangent plane (72), the arc-shaped surface (71) is located on one side close to the water inlet channel (3), and the flat tangent plane (72) is located on one side of the water outlet channel (4).

6. A noise reducing pump head according to claim 1, wherein: the shaft sheath (10) is made of stainless steel.