CN218293901U

CN218293901U - Fan blade and vacuum pump

Info

Publication number: CN218293901U
Application number: CN202222770878.6U
Authority: CN
Inventors: 宋尧军
Original assignee: Ningbo Shigao Mutual Creation Technology Co ltd
Current assignee: Ningbo Shigao Mutual Creation Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-13
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a flabellum and vacuum pump, including being discoid main part, wear to be equipped with the shaft hole in the main part, be equipped with a plurality of blades that set up around the shaft hole along the circumference interval in the main part to separate into a plurality of water conservancy diversion surfaces that have a slope with the main part surface, the inner upper surface of blade is equipped with the depressed part that extends to the lateral wall. It is through setting up the depressed part on the blade to reduce the resistance that produces with the blade contact when the air gets into, noise abatement and improvement flabellum rotational speed, and make wind leading-in fast under the slope effect of water conservancy diversion face, increase the air input in order to synthesize, improve bleed efficiency.

Description

Fan blade and vacuum pump

Technical Field

The utility model belongs to the technical field of air exhaust device technique and specifically relates to a flabellum and vacuum pump.

Background

A vacuum pump is a device or apparatus that uses mechanical, physical, chemical or physicochemical methods to pump a container to obtain a vacuum. Vacuum pump on the market usually contains the casing and is located motor, motor cabinet and impeller etc. in the casing, is equipped with air inlet and gas vent on the casing, and the output shaft of motor is connected to the impeller, is driven the impeller rotation by the motor for gas is from the air inlet in to the casing, then from the gas vent discharge, thereby realizes the operation of bleeding. However, the upper surfaces of the blades of the existing impeller are generally flush, so that the air flow is in contact with the upper surfaces of the blades when entering the air inlet, and the impeller rotates at a low speed, generates high noise and affects the air extraction efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical defects and designing a fan blade and a vacuum pump, which have the following specific structure.

The utility model discloses a flabellum, including being discoid main part, wear to be equipped with the shaft hole in the main part, be equipped with a plurality of blades that set up around the shaft hole along the circumference interval in the main part to separate into a plurality of water conservancy diversion surfaces that have the slope with the main part surface, the inner upper surface of blade is equipped with the depressed part that extends to the lateral wall.

Preferably, the flow guide surface is an arc surface or an inclined surface.

Preferably, the main body is provided with a convex column, the shaft hole penetrates through the convex column, the inner end of the blade is connected with the outer side wall of the convex column, and the concave part is matched with the outer side wall of the convex column to form a notch.

The utility model also provides a vacuum pump, including the pump case, be equipped with the pump chamber on the pump case, install the motor in the pump chamber, and the flabellum, the output shaft of motor is installed in the shaft hole = of flabellum and goes up, install the control switch who is connected with the motor on the pump case, be equipped with inlet port and the venthole with the pump chamber intercommunication respectively on the pump case, depressed part and at least part water conservancy diversion face set up towards the inlet port.

As preferred, the pump case is equipped with the mount that is located between inlet port and the venthole to separate into first cavity and second cavity with the pump chamber, the flabellum is located first cavity, the inlet port sets up on the outer wall of first cavity, the motor is installed on the mount and is located the second cavity, the output shaft of motor is worn to locate on the mount, be equipped with a plurality of slides that have the slope on the mount, slide intercommunication water conservancy diversion face and venthole.

Preferably, the top of slide is equipped with the opening that is located water conservancy diversion face below, the bottom of slide is equipped with the hole of airing exhaust that sets up towards adjacent slide bottom.

Preferably, the pump casing comprises a first casing and a second casing which are detachably connected to form a pump cavity in a split mode, and the fixing frame is sleeved on the second casing and abuts against the first casing.

Preferably, a control panel connected with the motor is further installed in the pump shell, the control switch comprises a key switch and a control button, the key switch is installed on the control panel, and the control button is slidably installed on the pump shell and abuts against the key switch.

Preferably, the air outlet and the air inlet are oppositely arranged on the pump shell, and the air outlet is arranged on the outer wall of the second cavity.

Preferably, the pump shell is recessed into the pump cavity to form a groove, and an air outlet communicated with the pump cavity is formed in the side wall of the groove.

The utility model discloses a flabellum and vacuum pump, through set up the depressed part on the blade to reduce the resistance that produces with the blade contact when the air gets into, noise abatement and improvement flabellum rotational speed, and make wind leading-in fast under the slope effect of water conservancy diversion face, with comprehensive increase air input, improve the efficiency of bleeding.

Drawings

FIG. 1 is a schematic view (one) of a vacuum pump;

FIG. 2 is a schematic view (II) of a vacuum pump;

FIG. 3 is a cross-sectional view of a vacuum pump;

FIG. 4 is an exploded schematic view of a vacuum pump;

fig. 5 is a schematic structural view of the fixing frame.

The reference numbers are as follows:

1. the air-conditioner comprises a main body 1a, a shaft hole 1b, a flow guide surface 2, blades 2a, a concave part 3, a convex column 4, a pump shell 4a, a pump cavity 4b, an air inlet 4c, an air outlet 4d, a groove 41, a first shell 42, a second shell 43, a convex ring 5, a motor 6, a fixing frame 6a, a slide 6b, an opening 6c, an exhaust hole 7, a control board 8, a key switch 9, a control button 10 and a power line

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 3-4, the fan blade described in this embodiment includes a disk-shaped main body 1, a shaft hole 1a is formed in the main body 1, a plurality of blades 2 are arranged on the main body 1 at intervals along the circumferential direction and around the shaft hole 1a to divide the surface of the main body 1 into a plurality of flow guiding surfaces 1b with slopes, and the upper surfaces of the inner ends of the blades 2 are provided with recessed portions 2a extending to the side walls.

In this embodiment, blade 2 is along vertical setting, and a plurality of blade evenly distributed is on the upper surface of main part 1. The upper surface of the main body 1 is convexly arranged, and the flow guide surface 1b is an arc surface.

In further embodiments, the flow guide surface 1b may be provided as an inclined surface.

Preferably, the main body 1 is provided with a convex column 3, the shaft hole 1a penetrates through the convex column 3, the inner end of the blade 2 is connected with the outer side wall of the convex column 3, and the concave part 2a is matched with the outer side wall of the convex column 3 to form a notch.

In this embodiment, the upper and lower ends of the protruding pillar 3 protrude from the upper and lower surfaces of the main body 1, the lower surface of the main body 1 is recessed, and the protruding pillar 3 and the main body 1 are integrally formed.

As shown in fig. 1-4, the utility model also provides a vacuum pump, including pump case 4, be equipped with pump chamber 4a on the pump case 4, install motor 5 in the pump chamber 4a to and foretell flabellum, the output shaft of motor 5 is installed on the shaft hole 1a of flabellum, installs the control switch who is connected with motor 5 on the pump case 4, be equipped with inlet port 4b and venthole 4c with pump chamber 4a intercommunication respectively on the pump case 4, depressed part 2a and at least partial water conservancy diversion face 1b set up towards inlet port 4 b.

In this embodiment, the pump case 4 is provided with a convex ring 43, the air inlet hole 4b is located in the convex ring 43, and the air inlet hole 4b is provided with a grille.

As shown in fig. 3-5, preferably, the pump case 4 is provided with a fixing frame 6 located between the air inlet 4b and the air outlet 4c to divide the pump chamber 4a into a first cavity and a second cavity, the fan blade is located in the first cavity, the air inlet 4b is disposed on the outer wall of the first cavity, the motor 5 is mounted on the fixing frame 6 and located in the second cavity, the output shaft of the motor 5 penetrates through the fixing frame 6, the fixing frame 6 is provided with a plurality of ramps 6a, and the ramps 6a communicate the flow guide surface 1b with the air outlet 4c. The motor 5 is stably assembled through the fixing frame 6, and air flow is rapidly guided into the second cavity from the first cavity through the gradient of the slide 6 a.

Wind enters the first cavity from the air inlet hole 4b, enters the slideway 6a from the flow guide surface 1b through the concave part 2a, and is discharged from the air outlet hole 4c through the second cavity.

Preferably, the top of the slide way 6a is provided with an opening 6b below the flow guide surface 1b, and the bottom of the slide way 6a is provided with an air exhaust hole 6c facing the bottom of the adjacent slide way 6 a.

In this embodiment, the slide ways 6a are recessed into the second cavity, the bottoms of the slide ways 6a are inclined, and the slide ways 6a are arranged at intervals along the circumferential direction. The outer edge of main part 1 is located the inboard of opening 6b outer edge, and the lower limb of main part 1 keeps the interval setting with the upper surface of mount 6, and the air current of being convenient for enters into slide 6a from water conservancy diversion face 1 b.

Preferably, a control panel 7 connected with the motor 5 is further installed in the pump housing 4, the control switch comprises a key switch 8 and a control button 9, the key switch 8 is installed on the control panel 7, and the control button 9 is slidably installed on the pump housing 4 and abuts against the key switch 8. The start-stop state of the motor 5 is adjusted through the control button 9.

In this embodiment, the pump case 4 is provided with a power cord 10 or a power socket electrically connected to the control board 7, and the air outlet 4c is located below the control board 7.

Preferably, the pump casing 4 is recessed into the pump chamber 4a to form a recess 4d, and an air outlet hole 4c communicating with the pump chamber 4a is provided in a side wall of the recess 4 d. The air outlet hole 4c can not be over against the control plate 7, and the damage to the control plate 7 caused by the fact that foreign matters are mistakenly inserted into the pump cavity 4a from the air outlet hole 4c is avoided.

Preferably, the pump housing 4 includes a first housing 41 and a second housing 42 detachably connected to form the pump chamber 4a, and the fixing frame 6 is sleeved on the second housing 42 and abuts against the first housing 41. The second housing 42 is sleeved on the fixing frame 6. The first housing 41 and the second housing 42 are fixedly connected by screws. The fixing frame 6, the motor 5 and the fan blades are conveniently installed.

In this embodiment, the air outlet 4c and the air inlet 4b are disposed on the pump case 4, and the air outlet 4c is disposed on the outer wall of the second cavity. The air inlet holes 4b are provided on the top surface of the first housing 41, the air outlet holes 4c are provided on the bottom surface of the second housing 42, and a plurality of the air outlet holes 4c are circumferentially spaced.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. A fan blade, comprising: including being discoid main part (1), wear to be equipped with shaft hole (1 a) on main part (1), be equipped with a plurality of blade (2) that set up around shaft hole (1 a) along the circumference interval on main part (1) to separate into a plurality of water conservancy diversion surfaces (1 b) that have the slope with main part (1) surface, the inner upper surface of blade (2) is equipped with depressed part (2 a) that extend to the lateral wall.

2. The fan blade of claim 1, further comprising: the flow guide surface (1 b) is an arc surface or an inclined surface.

3. The fan blade of claim 1 or 2, further comprising: be equipped with projection (3) on main part (1), on projection (3) were worn to locate in shaft hole (1 a), the inner of blade (2) is connected with the lateral wall of projection (3), depressed part (2 a) cooperatees with the lateral wall of projection (3) and forms the breach.

4. A vacuum pump, characterized by: the fan blade comprises a pump shell (4), wherein a pump cavity (4 a) is arranged on the pump shell (4), a motor (5) and the fan blade as claimed in any one of claims 1 to 3 are installed in the pump cavity (4 a), an output shaft of the motor (5) is installed on a shaft hole (1 a) of the fan blade, a control switch connected with the motor (5) is installed on the pump shell (4), an air inlet hole (4 b) and an air outlet hole (4 c) which are respectively communicated with the pump cavity (4 a) are formed in the pump shell (4), and the recessed portion (2 a) and at least part of the flow guide surface (1 b) are arranged towards the air inlet hole (4 b).

5. A vacuum pump according to claim 4, wherein: pump case (4) are equipped with mount (6) that are located between inlet port (4 b) and venthole (4 c) to separate into first cavity and second cavity with pump chamber (4 a), the flabellum is located first cavity, inlet port (4 b) set up on the outer wall of first cavity, motor (5) are installed on mount (6) and are located the second cavity, the output shaft of motor (5) is worn to locate on mount (6), be equipped with a plurality of slide (6 a) that have the slope on mount (6), slide (6 a) intercommunication water conservancy diversion face (1 b) and venthole (4 c).

6. A vacuum pump according to claim 5, wherein: the top of slide (6 a) is equipped with opening (6 b) that are located water conservancy diversion face (1 b) below, the bottom of slide (6 a) is equipped with air exhausting hole (6 c) that set up towards adjacent slide (6 a) bottom.

7. A vacuum pump according to claim 5, wherein: the pump shell (4) comprises a first shell (41) and a second shell (42) which are detachably connected to form a pump cavity (4 a) in a splicing mode, and the fixed frame (6) is sleeved on the second shell (42) and abuts against the first shell (41).

8. A vacuum pump according to claim 4, wherein: the pump is characterized in that a control panel (7) connected with the motor (5) is further installed in the pump shell (4), the control switch comprises a key switch (8) and a control button (9), the key switch (8) is installed on the control panel (7), and the control button (9) is slidably installed on the pump shell (4) and abuts against the key switch (8).

9. A vacuum pump according to claim 4, wherein: the air outlet hole (4 c) and the air inlet hole (4 b) are oppositely arranged on the pump shell (4), and the air outlet hole (4 c) is arranged on the outer wall of the second cavity.

10. A vacuum pump according to any of claims 4, 5 and 8, wherein: the pump shell (4) is sunken towards the inside of the pump cavity (4 a) to form a groove (4 d), and an air outlet (4 c) communicated with the pump cavity (4 a) is formed in the side wall of the groove (4 d).