CN214465038U

CN214465038U - Novel air pump

Info

Publication number: CN214465038U
Application number: CN202120590784.3U
Authority: CN
Inventors: 陈明斌; 老嘉铭; 麦良
Original assignee: Zhongshan Jixin Machine & Electric Industry Co ltd
Current assignee: Zhongshan Jixin Machine & Electric Industry Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-10-22
Anticipated expiration: 2031-03-18

Abstract

The utility model relates to the technical field of air pumps, and discloses a novel air pump, which comprises a front volute, a rear volute assembled with the front volute and forming a cavity together, and a rotary pressing sheet, a wind wheel and a motor arranged in the cavity; the motor is fixedly arranged on the rear volute and provided with a rotating shaft, and the wind wheel and the rotating pressing sheet are sequentially locked and fixed on the rotating shaft; the rotating shaft and the rotating pressing sheet and the wind wheel are in transmission connection, and the motor drives the wind wheel to rotate through the rotating pressing sheet. The novel air pump is more reasonable in structural design and can effectively reduce vibration and noise in the working process of the air pump.

Description

Novel air pump

Technical Field

The utility model relates to an air pump technical field especially relates to a novel air pump.

Background

At present, air pumps are often adopted by air pressurization and pressure stabilization machines of children trampolines or various air bags to add air. In the prior art, a wind wheel of an air pump is directly in transmission connection with a cylindrical rotating shaft of a motor; for example, the outer wall of the rotating shaft of the motor is provided with a flat mounting position, similarly, the inner wall of the through hole of the wind wheel is provided with a flat structure which is matched and mounted with the flat mounting position, and the rotating torque of the rotating shaft of the motor is transmitted to the wind wheel through the matching of the flat structure and the flat mounting position, so that the wind wheel is connected with the rotating shaft in a transmission manner, and then the wind wheel is driven to rotate, and the wind pump works normally.

However, in the working process of the wind pump, the flat structure of the direct transmission connection between the wind wheel and the rotating shaft easily loosens the wind wheel and the rotating shaft, and the radial direction of the wind wheel is not completely perpendicular to the axial direction of the rotating shaft of the motor, so that the rotating torque of the rotating shaft is transmitted to the wind wheel and then deflects, and thus, the wind pump generates excessive noise and vibration.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art, provide a novel air pump, this novel air pump design is more reasonable, and can effectively reduce vibration and noise in the air pump working process.

Based on the structure, the utility model discloses a novel air pump, which comprises a front volute, a rear volute assembled with the front volute and forming a cavity together, and a rotary pressing sheet, a wind wheel and a motor arranged in the cavity; the motor is fixedly arranged on the rear volute and provided with a rotating shaft, and the wind wheel and the rotating pressing sheet are sequentially locked and fixed on the rotating shaft; the rotating shaft and the rotating pressing sheet and the wind wheel are in transmission connection, and the motor drives the wind wheel to rotate through the rotating pressing sheet.

Preferably, the wind wheel structure comprises a locking nut, a gasket and a shaft clamp spring, wherein the rotating shaft is fixedly installed, the gasket, the wind wheel and the rotating pressing sheet are sequentially installed behind the shaft clamp spring, and the front end part of the rotating shaft is locked and fixed by the locking nut, so that the gasket, the wind wheel and the rotating pressing sheet are locked and fixed on the rotating shaft between the shaft clamp spring and the locking nut.

Preferably, the gasket, the wind wheel and the rotating pressing sheet are all provided with through holes through which the rotating shaft passes, so that the gasket, the wind wheel and the rotating pressing sheet are sequentially arranged on the rotating shaft through the through holes.

Preferably, the through hole of the wind wheel is circular, and the shaft section of the rotating shaft for mounting the wind wheel is a circular shaft section; the diameter and the axial length of the round shaft section are matched with the inner diameter and the length of the round through hole of the wind wheel.

Preferably, the outer wall of the front end of the circular shaft section is provided with a flat mounting position, and the inner wall of the through hole of the rotating pressing sheet is provided with a flat structure matched with the flat mounting position, so that the rotating pressing sheet does not circumferentially rotate relative to the rotating shaft, and the rotating torque of the rotating shaft of the motor is ensured to be transmitted to the rotating pressing sheet.

Preferably, the peripheral wall of the rotation pressing piece is provided with a plurality of opening grooves sunken towards the inner side of the rotation pressing piece, the front surface of the wind wheel is correspondingly provided with a plurality of column heads protruding outwards, the peripheral wall of the column heads is matched and combined with the inner side wall of the opening grooves, and the column heads are clamped in the opening grooves, so that the rotation torque force of the rotating shaft of the motor is transmitted to the wind wheel through the rotation pressing piece.

Preferably, the rotary pressing sheet is circular; the opening groove is semicircular, and the column head is cylindrical; a plurality of the opening grooves are arranged on the peripheral wall of the rotary pressing sheet at equal intervals, and the column heads are arranged on the wind wheel at equal intervals.

Preferably, the lock nut is made of metal; and the front end part of the rotating shaft is provided with an external thread locked and fixed with the locking nut.

Preferably, a support seat is fixedly connected below the rear volute.

Preferably, the corresponding assembly positions of the front volute and the rear volute are respectively provided with a screw hole for an external screw to pass through and be assembled in a spiral manner; and the corresponding mounting positions of the motor and the rear volute are provided with screw holes for external screws to pass through and to be mounted in a spiral manner.

Compared with the prior art, the utility model discloses at least, including following beneficial effect:

in the novel air pump of the utility model, the rotating shaft and the rotating pressing sheet and the wind wheel are in transmission connection, so that the rotating torque of the rotating shaft of the motor can be transmitted to the rotating pressing sheet and then transmitted to the wind wheel through the rotating pressing sheet to drive the wind wheel to rotate, thereby ensuring the normal work of the novel air pump and realizing the indirect transmission of the rotating shaft of the motor and the wind wheel; in addition, the wind wheel and the rotating pressing sheet are sequentially locked and fixed on the rotating shaft, and the wind wheel and the rotating pressing sheet can be firmly arranged on the rotating shaft. So, can reduce not hard up of wind wheel and pivot to can effectively guarantee the radial and the axial straightness that hangs down of pivot of motor of the wind wheel in the novel air pump, take place to deflect when the rotatory torsion of pivot transmits the wind wheel for, and then effectively reduce the vibration and the noise in this novel air pump working process, structural design is more reasonable.

Drawings

Fig. 1 is an exploded view of the novel air pump of the present invention.

Fig. 2 is a schematic view of a partial structure of the middle rotating shaft of the novel air pump of the present invention.

Fig. 3 is a front view of the wind wheel in the novel wind pump of the present invention.

Fig. 4 is a front view of the rotary pressing sheet in the novel air pump of the present invention.

The reference numbers illustrate: 1, a front volute; 2, locking a nut; 3, rotating and tabletting; 31 a flat configuration; 32 open grooves; 4, a wind wheel; 41 column cap; 5, a gasket; 6, a motor; 61 a rotating shaft; 611 a circular shaft section; 612 a flat mounting location; 613 external threads; 7, a rear volute; 71 a supporting seat; 8, a clamp spring is used for the shaft; 9, a screw hole; 10 through holes.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model discloses a novel air pump, refer to fig. 1-3, include: the device comprises a front volute 1, a locking nut 2, a rotary pressing sheet 3, a wind wheel 4, a gasket 5, a motor 6, a rear volute 7, a supporting seat 71 and a shaft clamp spring 8; the support base 71 is fixed below the rear scroll 7.

Wherein, the corresponding mounting positions of the motor 6 and the rear volute 7 and the corresponding assembly positions of the front volute 1 and the rear volute 7 are provided with screw holes 9; the motor 6 is provided with a rotating shaft 61; the central positions of the gasket 5, the wind wheel 4 and the rotary pressing sheet 3 are all provided with through holes 10 for the rotating shaft 61 to penetrate. The front end of the rotating shaft 61 is provided with an external thread 613 screwed to the lock nut 2.

When the motor is installed, external screws sequentially penetrate through the motor 6 and the screw holes 9 of the rear volute 7 to fix the motor 6 on the rear volute 7; then, after the shaft clamp spring 8 for mounting the shaft is fixed on the rotating shaft 61 of the motor 6, the shaft clamp spring penetrates through the gasket 5, the wind wheel 4 and the through hole 10 of the rotating pressing sheet 3 in sequence, so that the gasket 5, the wind wheel 4 and the rotating pressing sheet 3 are sequentially mounted on the rotating shaft 61; after the rotary pressing sheet 3 is installed, the front end part of the rotary shaft 61 is screwed into the locking nut 2 and locked and fixed; then, external screws sequentially penetrate through screw holes 9 of the front volute 1 and the rear volute 7 and are screwed tightly so as to assemble the front volute 1 and the rear volute 7; therefore, the installation work of the novel air pump can be completed.

Specifically, the gasket 5 and the rotary pressing sheet 3 are both circular; the lock nut 2 is made of metal. Wherein, the gasket 5 and the through hole 10 of the wind wheel 4 are circular; the shaft section of the rotating shaft 61 where the wind wheel 4 is installed is a circular shaft section 611, and the diameter and the axial length of the circular shaft section 611 are matched with the inner diameter and the length of the circular through hole 10 of the wind wheel 4; thus, the wind wheel 4 can be well assembled on the circular shaft section 611 of the rotating shaft 61 through the circular through hole 10, and the circular through hole 10 of the wind wheel 4 and the circular shaft section 611 are completely and circularly assembled, so that the wind wheel 4 can be well assembled on the rotating shaft 61 of the motor 6 and can rotate in a circular manner.

Further, the outer wall of the rotating shaft 61 between the external thread 613 and the circular shaft section 611 is provided with a flat mounting position 612, and correspondingly, referring to fig. 4, the inner wall of the through hole 10 of the rotating pressing sheet 3 is also provided with a flat structure 31 matched with the flat mounting position 612; thus, the flat mounting position 612 and the flat structure 31 are arranged, the rotating pressing sheet 3 can be assembled on the rotating shaft 61 in a limiting mode, the rotating pressing sheet 3 is prevented from rotating circumferentially relative to the rotating shaft 61, and therefore the rotating torsion of the rotating shaft 61 of the motor 6 can be effectively transmitted to the rotating pressing sheet 3.

Furthermore, as shown in fig. 4, the outer peripheral wall of the rotary pressing sheet 3 is provided with a plurality of semicircular open grooves 32 at equal intervals, correspondingly, as shown in fig. 3, the front surface of the wind wheel 4 is also provided with a plurality of column heads 41 protruding outwards at equal intervals, the outer peripheral wall of the column heads 41 is matched and combined with the inner peripheral wall of the open grooves 32, so that the column heads 41 are clamped in the open grooves 32, and thus, the open grooves 32 and the column heads 41 are provided, the rotary torsion of the rotary shaft 61 of the motor 6 can be transmitted to the wind wheel 4 through the rotary pressing sheet 3, and the wind wheel 4 is driven to rotate, so that the novel wind pump works normally, and the rotary torsion transmitted to the wind wheel 4 through the rotary pressing sheet 3 can be uniformly distributed along the circumference perpendicular to the axial direction of the rotary shaft 61, so that the rotary shaft 61 of the motor 6 and the wind wheel 4 can perform indirect accurate transmission. In addition, the thread rotating direction of the external thread 613 in the novel air pump is opposite to the rotating direction of the rotating shaft 61, so that the screw connection between the external thread 613 and the locking nut 2 is firmer and firmer in the process that the rotating shaft 61 drives the wind wheel 4 to rotate; and the circlip 8 for the shaft fixedly arranged on the rotating shaft 61 can effectively prevent the gasket 5 from moving to the rear end of the rotating shaft 61, so that the gasket 5, the wind wheel 4 and the rotating pressing sheet 3 can be firmly arranged on the rotating shaft 61. So, can reduce the not hard up of wind wheel 4 and pivot 61 to can effectively guarantee the radial of wind wheel 4 in the novel air pump and the axial straightness that hangs down of pivot 61 of motor 6, take place to deflect when the rotatory torsion of pivot 61 transmits for wind wheel 4, and then effectively reduce vibration and noise in this novel air pump working process, structural design is more reasonable.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.

The technical solution provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A novel air pump is characterized by comprising a front volute, a rear volute assembled with the front volute and forming a cavity together, and a rotary pressing sheet, a wind wheel and a motor which are arranged in the cavity; the motor is fixedly arranged on the rear volute and provided with a rotating shaft, and the wind wheel and the rotating pressing sheet are sequentially locked and fixed on the rotating shaft; the rotating shaft and the rotating pressing sheet and the wind wheel are in transmission connection, and the motor drives the wind wheel to rotate through the rotating pressing sheet.

2. The novel air pump as claimed in claim 1, comprising a lock nut, a spacer and a shaft clamp spring, wherein the spacer, the wind wheel and the rotary pressing plate are sequentially installed behind the shaft clamp spring in a fixed installation manner, and the front end part of the rotary shaft is locked and fixed by the lock nut, so that the spacer, the wind wheel and the rotary pressing plate are locked and fixed on the rotary shaft between the shaft clamp spring and the lock nut.

3. The novel air pump as claimed in claim 2, wherein the spacer, the wind wheel and the rotary pressing sheet are provided with through holes at central positions thereof for the shaft to pass through, so that the spacer, the wind wheel and the rotary pressing sheet are sequentially mounted on the shaft through the through holes.

4. The novel air pump as claimed in claim 3, wherein the through hole of the wind wheel is circular, and the shaft section of the rotating shaft for mounting the wind wheel is a circular shaft section; the diameter and the axial length of the round shaft section are matched with the inner diameter and the length of the round through hole of the wind wheel.

5. The novel air pump as claimed in claim 4, wherein the outer wall of the front end of the circular shaft section is provided with a flat mounting position, and the inner wall of the through hole of the rotary pressing sheet is provided with a flat structure matched with the flat mounting position, so that the rotary pressing sheet does not circumferentially rotate relative to the rotary shaft, and the rotary torque of the rotary shaft of the motor is transmitted to the rotary pressing sheet.

6. The novel wind pump according to claim 1 or 5, wherein the peripheral wall of the rotary pressing sheet is provided with a plurality of open grooves recessed towards the inner side of the rotary pressing sheet, the front surface of the wind wheel is correspondingly provided with a plurality of column heads protruding outwards, the peripheral wall of the column heads is matched and combined with the inner side wall of the open grooves, and the column heads are clamped in the open grooves, so that the rotary torque of the rotating shaft of the motor is transmitted to the wind wheel through the rotary pressing sheet.

7. The new air pump as claimed in claim 6, wherein said rotary blade is circular; the opening groove is semicircular, and the column head is cylindrical; a plurality of the opening grooves are arranged on the peripheral wall of the rotary pressing sheet at equal intervals, and the column heads are arranged on the wind wheel at equal intervals.

8. The novel air pump as claimed in claim 2, wherein the lock nut is made of metal; and the front end part of the rotating shaft is provided with an external thread locked and fixed with the locking nut.

9. The new air pump as claimed in claim 1, wherein a support base is fixedly connected to a lower portion of the rear volute.

10. The novel air pump as claimed in claim 1, wherein the corresponding assembly positions of the front volute and the rear volute are respectively provided with a screw hole for an external screw to pass through and be assembled in a screw manner; and the corresponding mounting positions of the motor and the rear volute are provided with screw holes for external screws to pass through and to be mounted in a spiral manner.