CN210290046U

CN210290046U - Air pump

Info

Publication number: CN210290046U
Application number: CN201921028813.6U
Authority: CN
Inventors: 沈华燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-10
Anticipated expiration: 2029-07-03

Abstract

The utility model provides an inflator pump, includes cylinder body, cylinder cap, piston part and motor, its characterized in that: the cylinder body comprises a support and a cylinder sleeve, the motor and the cylinder sleeve are basically installed on the same side of the support in parallel, a transmission mechanism connected with the motor is arranged in the support, one end of the piston assembly is arranged in the cylinder sleeve, the other end of the piston assembly is connected with the transmission mechanism, and the motor and the cylinder body form an N-type machine core in N-type arrangement. The utility model discloses compact structure is reasonable, and is not only small, and occupation space is little, and the installation of being convenient for still reduces axis of rotation or bearing load simultaneously, has improved the life of product.

Description

Air pump

Technical Field

The utility model relates to an inflation equipment technical field, concretely relates to can carry out gas filled pump to tire etc..

Background

The inflating pump is also called an inflating machine, an inflating pump and an inflating machine, works through the operation of a motor, and is an inflating tool. The working principle of the inflator pump is as follows: when the motor is running and air is pumped out, the valve of the communicating vessel is opened by the atmospheric pressure, the air enters the air cylinder, and when the tire is pumped out, the valve is closed by the atmospheric pressure in the air cylinder, and the air enters the tire. The application field of the inflator pump is wide, and relates to automobiles, motorcycles, bicycles, rubber balls, rubber boats and the like.

The traditional inflator pump cylinder body generally adopts an L-shaped movement (as shown in fig. 5) formed by arranging a motor 20 and a cylinder body 10 at a right angle or an I-shaped movement (as shown in fig. 6) formed by arranging the motor 20 and the cylinder body 10 in a straight line, wherein the L-shaped movement has large volume and more space waste; the I-shaped core is also large in size and long in length. In addition, the load force F and the rotating shaft or bearing load force F1 of the L-type movement and the I-type movement are both on the same side of the rotating shaft or bearing 30, so that the rotating shaft or bearing 30 is overloaded, and the requirement on the rotating shaft or bearing 30 is high.

It is therefore desirable to improve upon the conventional inflator structure so that the movement is small while reducing the load on the rotating shaft or the bearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to foretell technical current situation and provide a compact structure reasonable inflator pump, not only small still reduces axis of rotation or bearing load simultaneously.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an inflator pump, includes cylinder body, cylinder cap, piston part and motor, its characterized in that: the cylinder body comprises a support and a cylinder sleeve, the motor and the cylinder sleeve are basically installed on the same side of the support in parallel, a transmission mechanism connected with the motor is arranged in the support, one end of the piston assembly is arranged in the cylinder sleeve, and the other end of the piston assembly is connected with the transmission mechanism.

As an improvement, the left side of the support is provided with a mounting seat for mounting a cylinder sleeve and a motor, the cylinder sleeve and the motor are vertically and parallelly mounted on the left side of the support, the piston assembly is a connecting rod piston, the piston part of the connecting rod piston is movably arranged in the cylinder sleeve, and the connecting rod part of the connecting rod piston extends out of the cylinder sleeve and is connected with a transmission mechanism mounted in the support.

The transmission mechanism comprises a rotating shaft, a transmission gear and a cam, wherein the transmission gear and the cam are installed on the rotating shaft, an upper cavity and a lower cavity corresponding to the cylinder sleeve and the motor are formed in the support, the transmission gear is arranged in the lower cavity and is meshed with a driving gear installed on an output shaft of the motor, the cam is arranged in the upper cavity, and an eccentric shaft is arranged on the cam and is rotationally connected with a connecting rod part of the connecting rod piston.

Preferably, the transmission gear is a gear with annular teeth distributed on the side surface or an umbrella-shaped gear, is fixed on the rotating shaft, and is arranged in the containing cavity below and meshed with a driving gear arranged on an output shaft of the motor.

And when the motor rotates, the transmission gear is driven to rotate, so that the rotating shaft and the cam are driven to rotate, the connecting rod piston is driven to move back and forth through the eccentric shaft of the cam, and the piston part moves back and forth in the cylinder sleeve.

Further, the cylinder cover is sealed and involuted at the left end of the cylinder sleeve, the left end of the cylinder sleeve is a reducing portion involutively connected with the cylinder cover, and an air outlet hole is formed in the center of the upper end of the reducing portion.

Furthermore, the air outlet is in a Y-shaped structure with a wide outer part and a narrow inner part, an air outlet valve is arranged at the air outlet, an air inlet and an air outlet are arranged on the cylinder cover, and an air valve structure matched with the air outlet valve is concavely arranged on the lower end surface of the cylinder cover.

Still further, the air inlet is arranged in the middle of the end of the cylinder cover and is in the same straight line with the air outlet, the air outlet is transversely arranged on the side of the cylinder cover and is connected with the air storage tank.

And finally, the bracket is formed by closing an upper bracket cover and a lower bracket cover, connecting columns are respectively formed in the middle and two sides of the lower bracket cover, corresponding connecting holes are formed in the upper bracket cover, and the upper bracket cover and the lower bracket cover are connected and fixed through screws after being closed.

Compared with the prior art, the utility model has the advantages of: the cylinder body adopts the N-shaped machine core with the motor and the cylinder sleeve arranged in parallel, so that the volume is greatly reduced, the space occupation is reduced, and the installation is convenient; the load force and the rotating shaft or bearing load force are respectively arranged on two sides of the rotating shaft or bearing, so that the load of the rotating shaft or bearing is smaller, and the requirement on the rotating shaft or bearing is greatly reduced. The utility model discloses compact structure is reasonable, and is not only small, still reduces axis of rotation or bearing load simultaneously, has improved the life of product.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a perspective view of FIG. 1;

FIG. 3 is a schematic structural view of the embodiment of the present invention after the rod piston moves forward in place;

FIG. 4 is an exploded view of FIG. 2;

FIG. 5 is a schematic structural view of a conventional L-shaped inflator core before modification;

fig. 6 is a schematic structural view of a conventional inflator type I movement before modification.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, an inflator pump comprises a cylinder body, a cylinder cover 3, a piston assembly and a motor 5, wherein the piston assembly and the motor 5 are installed in the cylinder body, the cylinder body comprises a bracket 1 and a cylinder sleeve 2, the bracket 1 is formed by combining a bracket upper cover 11 and a bracket lower cover 12, a mounting seat for installing the cylinder sleeve 2 and the motor 5 is formed on the left side after the bracket upper cover 11 and the bracket lower cover 12 are combined, the cylinder sleeve 2 and the motor 5 are installed on the left side of the bracket 1 in a vertical and substantially parallel manner, certainly, the higher the parallelism is, the better the parallelism is, the included angle between the axes is required to be within 10 degrees, the transmission mechanism 6 connected with the motor 5 is arranged in the support 1, the piston component is a connecting rod piston 4, the piston part 41 of the connecting rod piston 4 is movably arranged in the cylinder sleeve 2, the connecting rod part 42 of the connecting rod piston 4 extends out of the cylinder sleeve 2 to be connected with the transmission mechanism 6 arranged in the support 1, and the motor 5 and the cylinder body form an N-type movement in N-type arrangement. The transmission mechanism 6 comprises a rotating shaft 61, a transmission gear 62 and a cam 63 which are arranged on the rotating shaft 61, an upper cavity and a lower cavity which correspond to the cylinder sleeve 2 and the motor 5 are formed in the bracket 1, the transmission gear 62 adopts a gear with annular teeth distributed on the side surface or an umbrella-shaped gear and is fixed on the rotating shaft 61, the cavity arranged below is meshed with a driving gear 64 arranged on an output shaft of the motor 5, and when the transmission gear 62 adopts the umbrella-shaped gear, the driving gear 64 also adopts a matched umbrella-shaped gear. The cam 63 is disposed in the upper cavity, and the cam 63 is provided with an eccentric shaft 631 rotatably connected to the connecting rod portion 42 of the connecting rod piston 4. The middle parts of the two cavities in the bracket 1 and the inner walls of the bottom parts of the lower cavities are respectively provided with a bearing mounting seat, the lower end of the rotating shaft 61 is mounted on the lower bearing 65, the upper end of the rotating shaft 61 passes through the upper bearing 65 and is fixed with the cam 63, thus when the motor 5 works and rotates, the driving gear 64 rotates, the transmission gear 62 meshed with the driving gear 64 rotates, the rotating shaft 61 and the cam 63 are further driven to rotate, the eccentric shaft 631 of the cam 63 drives the connecting rod piston 4 to move back and forth, and therefore the piston part 41 moves back and forth in the cylinder sleeve 2, and air inlet and air outlet.

The cylinder cover 3 is sealed and involuted at the left end of the cylinder sleeve 2, the left end of the cylinder sleeve 2 is a reducing part involutively connected with the cylinder cover 3, and the central position of the upper end of the reducing part is provided with an air outlet 21; the air outlet 21 is in a Y-shaped structure with a wide outer part and a narrow inner part, the air outlet 21 is provided with an air outlet valve 7, the cylinder cover 3 is provided with an air inlet 31 and an air outlet 32, and the lower end surface of the cylinder cover 3 is concavely provided with an air valve structure matched with the air outlet valve 7. The air inlet 31 is arranged in the middle of the end part of the cylinder cover 3 and is on the same straight line with the air outlet 21, the air outlet 32 is transversely arranged on the side part of the cylinder cover 3, and the air outlet 32 is connected with the air storage tank.

Connecting columns 121 are respectively formed in the middle and two sides of the bracket lower cover 12, corresponding connecting holes 111 are formed in the bracket upper cover 11, and the bracket upper cover 11 and the bracket lower cover 12 are connected and fixed through screws after being closed.

The working principle refers to the following steps: when the motor 5 is started, the transmission gear 62 and the rotating shaft 61 rotate when the motor 5 rotates, the cam 63 rotates along with the rotation, the connecting rod piston 4 is driven to move by the rotation of the eccentric shaft 631 of the cam 63, when the eccentric shaft 631 of the cam 63 is positioned at the right side of the rotating shaft 61, as shown in fig. 1 and 2, the piston part 41 moves to the right, gas enters the cylinder body, when the eccentric shaft 631 of the cam 63 is positioned at the left side of the rotating shaft 61, as shown in fig. 1 and 2, the piston part 41 moves to the left, as shown in fig. 3, gas is discharged out of the cylinder body 1 from the gas outlet hole 21, enters the outer gas storage tank through the gas outlet 32 of the cylinder cover 3.

Because the motor 5 and the cylinder sleeve 2 are arranged on the same side of the bracket 1 in parallel, the cylinder body of the inflator pump is an N-shaped movement, the structure is compact, the volume is greatly reduced, and the load force F and the rotating shaft or bearing load force F1 are respectively arranged on two sides of the rotating shaft 61 or the bearing 65, as shown in fig. 1, the load of the rotating shaft 61 or the bearing 65 is smaller, and the requirement on the rotating shaft 61 or the bearing 65 is greatly reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an inflator pump, includes cylinder body, cylinder cap, piston part and motor, its characterized in that: the cylinder body comprises a support and a cylinder sleeve, the motor and the cylinder sleeve are basically installed on the same side of the support in parallel, a transmission mechanism connected with the motor is arranged in the support, one end of the piston assembly is arranged in the cylinder sleeve, and the other end of the piston assembly is connected with the transmission mechanism.

2. The inflator of claim 1, wherein: the left side of support is equipped with the mount pad that supplies cylinder liner and motor installation, and parallel mount is in the left side of support from top to bottom in cylinder liner and motor, and the piston subassembly is a connecting rod piston, and the piston portion movably of connecting rod piston sets up in the cylinder liner, and the connecting rod portion of connecting rod piston stretches out the cylinder liner and is connected with the drive mechanism who installs in the support.

3. The inflator of claim 2, wherein: the transmission mechanism comprises a rotating shaft, a transmission gear and a cam, the transmission gear and the cam are installed on the rotating shaft, an upper cavity and a lower cavity corresponding to the cylinder sleeve and the motor are formed in the support, the transmission gear is arranged in the lower cavity and is meshed with a driving gear installed on an output shaft of the motor, the cam is arranged in the upper cavity, and an eccentric shaft is arranged on the cam and is rotationally connected with a connecting rod part of the connecting rod piston.

4. The inflator of claim 3, wherein: the transmission gear is a gear with annular teeth distributed on the side surface or an umbrella-shaped gear, is fixed on the rotating shaft, and is arranged in the containing cavity below and meshed with a driving gear arranged on an output shaft of the motor.

5. The inflator of claim 4, wherein: the middle parts of the two cavities in the support and the inner walls of the bottoms of the lower cavities are respectively provided with a bearing mounting seat, the lower end of the rotating shaft is mounted on a lower bearing, the upper end of the rotating shaft penetrates through the upper bearing and is fixed with the cam, when the motor works and rotates, the driving gear is driven to rotate, the rotating shaft and the cam are driven to rotate, the eccentric shaft of the cam drives the connecting rod piston to move back and forth, and therefore the piston part can move back and forth in the cylinder sleeve.

6. The inflator of any one of claims 1 to 5, wherein: the cylinder cover is sealed and involuted at the left end of the cylinder sleeve, the left end of the cylinder sleeve is a reducing part involutively connected with the cylinder cover, and an air outlet hole is formed in the center of the upper end of the reducing part.

7. The inflator of claim 6, wherein: the air outlet is of a Y-shaped structure with a wide outer part and a narrow inner part, an air outlet valve is arranged at the air outlet, an air inlet and an air outlet are arranged on the cylinder cover, and an air valve structure matched with the air outlet valve is concavely arranged on the lower end face of the cylinder cover.

8. The inflator of claim 7, wherein: the air inlet is arranged in the middle of the end of the cylinder cover and is on the same straight line with the air outlet, the air outlet is transversely arranged on the side of the cylinder cover and is connected with the air storage tank.

9. The inflator of any one of claims 1 to 5, wherein: the support is formed by closing an upper support cover and a lower support cover, connecting columns are formed in the middle and on two sides of the lower support cover respectively, corresponding connecting holes are formed in the upper support cover, and the upper support cover and the lower support cover are fixedly connected through screws after being closed.