CN212337566U

CN212337566U - Double-cylinder inflator pump

Info

Publication number: CN212337566U
Application number: CN202020610863.1U
Authority: CN
Inventors: 沈华燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-01-12
Anticipated expiration: 2030-04-21

Abstract

The utility model provides a double-cylinder pump, includes first cylinder and second cylinder, its characterized in that: the first cylinder and the second cylinder are respectively installed on the left side and the right side of the same end of the motor, a cam is arranged on the output end of the motor, and the piston assemblies in the first cylinder and the second cylinder are respectively in rotating connection with the eccentric shaft of the cam and realize the left-right movement of the piston in the cylinder through the rotation of the cam. Two cylinders are horizontally arranged at the same end of the motor in an opposite mode, and piston assemblies in the cylinders are connected with the same cam. The utility model has the advantages of simple and reasonable structure, two cylinders only need a cam, and install at the homonymy of motor, great reduction the volume, solved complicated, the bulky problem of traditional double-cylinder pump structure, simple to operate is swift simultaneously, still the cost is reduced.

Description

Double-cylinder inflator pump

Technical Field

The utility model relates to an inflation equipment technical field, concretely relates to double-cylinder pump.

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 generally comprises a cylinder body, a valve seat with an inlet valve and an outlet valve and a cylinder cover, wherein when a piston moves upwards, the inlet valve is closed, the outlet valve is opened, and gas is discharged from an outlet through the outlet valve; when the piston moves downwards, the air inlet valve opens air to enter the cylinder body, and the air outlet valve closes. The traditional inflator pump is divided into a single cylinder and two double cylinders, the single cylinder inflator pump has the defects of insufficient air pressure, long inflation time and difficult inflation of vehicles with large sizes, and compared with the double cylinder inflator pump, the single cylinder inflator pump has the advantages of sufficient air pressure, quick inflation, stable operation and the like. The existing double-cylinder inflator pump adopts two cams and two cylinders which are respectively arranged at two ends of a motor to form a double cylinder for work, but has the advantages of large volume, complex structure and high installation cost.

Therefore, the structure of the traditional double-cylinder inflating pump needs to be improved, so that the volume is small, and the installation cost is low.

Disclosure of Invention

The utility model aims to solve the technical problem that a simple structure is reasonable, small, simple to operate's double-cylinder pump is provided to foretell technical situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a double-cylinder pump, includes first cylinder and second cylinder, its characterized in that: the first cylinder and the second cylinder are respectively installed on the left side and the right side of the same end of the motor, a cam is arranged on the output end of the motor, the piston assemblies in the first cylinder and the second cylinder are respectively in rotating connection with the eccentric shaft of the cam, and the piston moves left and right in the cylinder through the rotation of the cam.

Furthermore, the double-cylinder inflator pump further comprises a support, the motor is installed at the lower end of the outer side of the support, the cam is installed on the inner side of the support and connected with an output shaft of the motor, the first air cylinder and the second air cylinder are horizontally arranged at the left position and the right position of the support respectively, and piston assemblies of the first air cylinder and the second air cylinder are rotatably connected with eccentric shafts of the cam respectively.

Still further, the first cylinder and the second cylinder have the same structure and respectively comprise a cylinder body and a cylinder cover, wherein one end of the cylinder body is a reducing part connected with the cylinder cover in an involutory manner, the cylinder cover is sealed and involutory on the cylinder body, and the other end of the cylinder body is provided with a connecting part fixedly connected with the bracket.

Still further, the support is the upper end open-ended rectangle framework, the installing port that the main part is square, base area circular arc transition is seted up at the both ends about the support, the inner wall both sides of installing port vertically and the base are equipped with the protruding muscle of direction, the connecting portion of cylinder body are corresponding square structure, the vertical both sides of connecting portion vertically and the base shaping have with the protruding muscle matched with direction guide groove, the upper end both sides of installing port are equipped with the connecting hole, the upper end of connecting portion is equipped with the clamp plate that offsets with the upper end cooperation of installing port, seted up corresponding through-hole on the clamp plate, the cylinder body passes the through-hole of clamp plate through the guide groove of connecting portion and the protruding muscle of direction is fixed, the rethread screw passes the through-.

Furthermore, the piston assembly is a connecting rod piston consisting of a piston and a connecting rod, a piston ring is sleeved on the piston of the connecting rod piston, one end of the connecting rod is fixedly connected with the piston, and the other end of the connecting rod extends out of the cylinder body to be rotationally connected with an eccentric shaft of the cam.

Preferably, the joint surface of the connecting rod at the connecting position of the eccentric shaft is provided with a matched arc-shaped groove.

Further, the outer end central point of the undergauge portion of the cylinder body is provided with an air outlet, an air outlet sealing ball is arranged at the air outlet, the cylinder cover is provided with an air inlet and an air outlet, and the lower end face of the cylinder cover is concavely provided with an air valve structure matched with the air outlet sealing ball.

Still further, the air inlet is seted up in the upper end middle part position of cylinder cap, and on the collinear with the venthole of cylinder body, the lateral part at the cylinder cap is transversely seted up to the gas outlet, and the gas outlet is connected with the gas holder.

And finally, the cylinder cover is connected to the reducing part of the cylinder body in a rotating and clamping manner.

Compared with the prior art, the utility model has the advantages of: two cylinders are horizontally arranged at the same end of the motor in an opposite mode, and piston assemblies in the cylinders are rotatably connected with the same cam. The utility model has the advantages of simple and reasonable structure, two cylinders only need a cam, and install at the homonymy of motor, have reduced the volume greatly, have solved complicated, the bulky problem of traditional double-cylinder pump structure, and simple to operate is swift simultaneously, has still reduced the cost.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention;

fig. 2 is a structural sectional view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the cam of FIG. 2 after the cam has been rotated 90 degrees clockwise;

FIG. 4 is a cross-sectional view of the cam of FIG. 2 after the cam has been rotated 180 degrees clockwise;

fig. 5 is a structural section view of fig. 2 after the cam is rotated 270 degrees clockwise.

Detailed Description

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

As shown in fig. 1 to 5, a double-cylinder inflator pump comprises a first cylinder 10, a second cylinder 20, a motor 5 and a bracket 6, wherein the first cylinder 10 and the second cylinder 20 are respectively installed at the left side and the right side of the same end of the motor 5, a cam 7 is arranged at the output end of the motor 5, piston assemblies 3 in the first cylinder 10 and the second cylinder 20 are respectively connected with an eccentric shaft 71 of the cam 7 in a rotating manner, and the piston 31 moves left and right in the cylinders through the rotation of the cam 7.

The concrete structure is as follows: the support 6 is a rectangular frame body with an opening at the upper end, the motor 5 is arranged at the middle position of the outer side and the lower end of the support 6, the cam 7 is arranged at the inner side of the support 7, the cam 7 is connected with an output shaft 51 of the motor 5, the left end and the right end of the support 6 are provided with mounting ports 61, the first air cylinder 10 and the second air cylinder 20 are respectively horizontally arranged at the positions of the left mounting port 61 and the right mounting port 61 of the support 6, the first air cylinder 10 and the second air cylinder 20 have the same structure and respectively comprise a cylindrical cylinder body 1 and a cylinder cover 2, one end of the cylinder body 1 is a reducing part 11 connected with the cylinder cover 2 in an involutive way, the cylinder cover 2 is involutive and sealed on the cylinder body 1, the other end of the cylinder body 1 is provided with a connecting part 12 connected with the mounting ports 61 of the support 6 in a matching way, the mounting ports 61 are mounting ports with arc transition on the main, the two sides of the connecting portion 12 are longitudinally and the bottom edge is formed with guide grooves 121 matched with the guide convex ribs 62, the two sides of the upper end of the mounting opening 61 are provided with connecting holes 63, the upper end of the connecting portion 12 is provided with a pressing plate 122 matched and abutted with the upper end of the mounting opening 61, the pressing plate 122 is provided with corresponding through holes 123, the cylinder body 1 is positioned by matching the guide grooves 121 of the connecting portion 12 and the guide convex ribs 62, and then passes through the through holes 123 of the pressing plate 122 through screws and is screwed into the connecting holes 63 to be connected and fixed with the support 6. The piston assembly 3 is a connecting rod piston consisting of a piston 31 and a connecting rod 32, the piston 31 of the connecting rod piston is sleeved with a piston ring 30, one end of the connecting rod 32 is fixedly connected with the piston 31, and the other end of the connecting rod 32 extends out of the cylinder body 1 and is rotatably connected with an eccentric shaft 71 of the cam 7. The center position of the outer end of the reducing part 11 of the cylinder body 1 is provided with an air outlet, an air outlet sealing ball 4 is arranged at the air outlet, the cylinder cover 2 is provided with an air inlet 21 and an air outlet 22, and the lower end surface of the cylinder cover 2 is concavely provided with an air valve structure matched with the air outlet sealing ball 4. The air inlet 21 is arranged in the middle of the upper end of the cylinder cover 2 and is on the same straight line with the air outlet hole of the cylinder body 1, the air outlet 22 is transversely arranged on the side of the cylinder cover 2, and the air outlet 22 is connected with the air storage tank. The cylinder cover 2 is connected to the reduced diameter part 11 of the cylinder body 1 in a screwing and clamping manner.

The working principle refers to the following steps: when the motor 5 is started, the motor 5 rotates, the cam 7 rotates, the connecting rod 32 is driven to move up and down through the rotation of the cam 7, when the eccentric shaft 71 of the cam 7 is positioned on the left side, as shown in fig. 2, the pistons 31 of the first cylinder 10 and the second cylinder move to the left, the first cylinder 10 is exhausted, and the second cylinder 20 is exhausted; when the eccentric shaft 71 of the cam 7 is located at the right side, as shown in fig. 4, the pistons 31 of the first cylinder 10 and the second cylinder move to the right, the first cylinder 10 is charged with air, and the second cylinder 20 is discharged with air.

The problem that traditional double-cylinder pump structure is complicated, bulky has been solved to this embodiment, has reduced the volume greatly, and simple to operate is swift simultaneously, still the cost is 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 a double-cylinder pump, includes first cylinder and second cylinder, its characterized in that: the first cylinder and the second cylinder are respectively installed on the left side and the right side of the same end of the motor, a cam is arranged on the output end of the motor, the piston assemblies in the first cylinder and the second cylinder are respectively in rotating connection with the eccentric shaft of the cam, and the piston moves left and right in the cylinder through the rotation of the cam.

2. The dual cylinder inflator of claim 1, wherein: the double-cylinder inflator pump further comprises a support, the motor is installed at the lower end of the outer side of the support, the cam is installed on the inner side of the support and connected with an output shaft of the motor, the first air cylinder and the second air cylinder are horizontally arranged on the left and right of the support respectively, and piston assemblies of the first air cylinder and the second air cylinder are rotatably connected with an eccentric shaft of the cam respectively.

3. The dual cylinder inflator of claim 2, wherein: the structure of first cylinder and second cylinder is the same, includes cylinder body and cylinder cap respectively, and wherein the one end of cylinder body is for closing the undergauge portion of being connected with the cylinder cap, and the cylinder cap is sealed to closing on the cylinder body, and the other end of cylinder body is equipped with the connecting portion fixed with leg joint.

4. The dual cylinder inflator of claim 3, wherein: the support is upper end open-ended rectangle framework, the main part is square to both ends is seted up about the support, the base takes the installing port of circular arc transition, the inner wall both sides of installing port vertically and the base are equipped with the protruding muscle of direction, the connecting portion of cylinder body are corresponding square structure, the both sides of connecting portion vertically and the base shaping have with the protruding muscle matched with direction recess, the upper end both sides of installing port are equipped with the connecting hole, the upper end of connecting portion is equipped with the clamp plate that offsets with the upper end cooperation of installing port, seted up corresponding through-hole on the clamp plate, the cylinder body is fixed a position through the cooperation of the protruding muscle of direction recess and direction of connecting portion, the rethread screw passes the through-hole of clamp plate.

5. The dual cylinder inflator of claim 4, wherein: the piston assembly is a connecting rod piston consisting of a piston and a connecting rod, a piston ring is sleeved on the piston of the connecting rod piston, one end of the connecting rod is fixedly connected with the piston, and the other end of the connecting rod extends out of the cylinder body to be rotatably connected with an eccentric shaft of the cam.

6. The dual cylinder inflator of claim 5, wherein: and the binding surface of the connecting rod at the connecting part of the eccentric shaft is provided with a matched arc-shaped groove.

7. The dual cylinder inflator of any one of claims 3 to 6, wherein: the air outlet hole is formed in the center of the outer end of the diameter reducing portion of the cylinder body, the air outlet sealing ball is arranged at the air outlet hole, the cylinder cover is provided with an air inlet and an air outlet, and the lower end face of the cylinder cover is concavely provided with an air valve structure matched with the air outlet sealing ball.

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

9. The dual cylinder inflator of any one of claims 3 to 6, wherein: the cylinder cover is connected to the reducing part of the cylinder body in a rotating and clamping manner.