V-shaped double-cylinder high-pressure air pump machine

Abstract

A V-shaped double-cylinder high-pressure air pump machine belongs to the technical field of air pumps and comprises a motor, an air cylinder support, a bevel gear, a driving gear and an air cylinder assembly. The motor, the bevel gear, the driving gear, the air cylinder assemblies and the air cylinder support are fixedly installed together, each air cylinder assembly comprises an air cylinder cover, a check valve spring, a check valve rubber plug, an air cylinder cover sealing ring, an air cylinder and a connecting rod piston mechanism, an exhaust pipe is arranged at the upper end of one side of an air cylinder cover, and a guide groove and an installation groove are formed in the upper end and the lower end in the air cylinder cover respectively. And the left side end and the right side end of the cylinder bracket are respectively provided with a limiting barrel. Two gears are adopted to drive a connecting rod piston mechanism and the like to move through a motor, the whole structure of the device is relatively simple and compact, the failure rate is low, compressed air is circularly provided through the two air cylinder assemblies, a check valve rubber plug and a spring can prevent the compressed air from flowing back, the pressure of output air is increased, and the service life of the device is prolonged. And the air output speed is increased, and the air supply device is suitable for air supply of various air utilization devices.

Description

Technical Field

[0001] This utility model relates to the field of air pump equipment technology, and in particular to a V-type double-cylinder high-pressure air pump. Background Technology

[0002] A high-pressure air pump is a device that compresses air to provide compressed air to related equipment. Its main structure includes an electric motor or internal combustion engine (hereinafter collectively referred to as power equipment), cylinder, piston, connecting rod, crankshaft, etc. When working, the power equipment outputs power to drive the crankshaft to rotate. The crankshaft drives the piston to move up or down in the cylinder through the connecting rod, thereby compressing the air and then outputting it to the air-using equipment (such as storing air in an air tank, inflating vehicle tires, providing power to a painting machine, etc.).

[0003] Existing portable, small, dual-cylinder high-pressure air pumps used in vehicles employ two main methods: one uses a motor to drive the crankshaft and pistons via a pulley and belt reduction mechanism to increase torque; the other uses a multi-stage gear reduction mechanism to drive the crankshaft and pistons, thus achieving air compression. Compared to the pulley-driven method, the multi-stage gear reduction method offers advantages such as compact structure, small size, and stable operation. However, existing high-pressure air pumps driven by multi-stage gear reduction mechanisms have multiple driven gears in addition to the main gear on the motor shaft, resulting in higher costs and a higher failure rate (the increased number of gears leads to a greater likelihood of malfunctions). In conclusion, existing high-pressure air pumps driven by multi-stage gear reduction mechanisms have significant room for improvement. Utility Model Content

[0004] In order to overcome the shortcomings of existing high-pressure air pumps driven by multi-stage gear reduction mechanisms, which are limited by their structure as described in the background art, this utility model provides a V-type double-cylinder high-pressure air pump that can drive the connecting rod piston mechanism and other movements with two gears. The overall structure of the equipment is relatively simple and compact, with a low failure rate. Furthermore, by synchronously providing compressed air to related equipment through two sets of cylinder assemblies, the pressure and speed of the output air are increased.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A V-type dual-cylinder high-pressure air pump includes a motor, a cylinder bracket, a bevel gear, a drive gear, and a cylinder assembly. The motor is fixedly mounted on the lower end of the cylinder bracket, and the drive gear is fixedly mounted on the upper end of the motor shaft. The cylinder bracket has a mounting base at its rear end, on which a bearing is fixedly mounted. The bevel gear has a fixed rod fixedly mounted on its rear end and a shaft mounted on its front end; the fixed rod of the bevel gear is fixedly mounted inside the inner ring of the bearing. There are at least two cylinder assemblies, each comprising: a cylinder head, a check valve spring, a check valve rubber plug, a cylinder head sealing ring, a cylinder, and a connecting rod piston mechanism. An exhaust pipe is fixedly mounted on the upper side of one side of the cylinder head. The cylinder head has guide grooves and mounting grooves at its upper and lower ends, respectively. The upper end of the cylinder has an exhaust port and is fixedly installed in the mounting groove. The cylinder head sealing ring is located between the lower end of the mounting groove and the upper end of the cylinder. The lower end of the spring is fixedly installed on the upper end of the check valve rubber plug, and the upper end of the spring is movably sleeved in the guide groove. The upper piston of the connecting rod piston mechanism is movably sealed inside the cylinder. The left and right ends of the cylinder bracket are respectively fitted with limiting sleeves, and the lower ends of the cylinders of the two sets of cylinder assemblies are respectively fixedly installed in the two limiting sleeves. The connecting rod shaft holes of the connecting rod piston mechanisms of the two sets of cylinder assemblies are rotatably sleeved on the outside of the bevel gear shaft, and a retaining ring is fixedly installed on the front side of the shaft.

[0007] Furthermore, the driving gear meshes with the bevel gear, and the number of teeth on the driving gear is less than the number of teeth on the bevel gear.

[0008] Furthermore, the lower outer side of the check valve rubber plug has a tapered structure, the outer diameter of the lower end of the check valve rubber plug is smaller than the inner diameter of the guide groove, and the outer diameter of the spring is smaller than the inner diameter of the guide groove.

[0009] Furthermore, when the check valve rubber plug is at the bottom dead center, its lower part is in sealed contact with the exhaust port at the upper end of the cylinder.

[0010] Furthermore, the limiting cylinders distributed on the left and right sides of the cylinder bracket are misaligned, and the lower ends of the connecting rods of the connecting rod piston mechanisms of the two sets of cylinder assemblies are misaligned.

[0011] Furthermore, the cylinder head exhaust pipe of the two sets of cylinder assemblies is connected to a three-way pipe at both ends, the third end of the three-way pipe is connected to the air-using equipment via a pipeline, and the lower end of the motor is mounted on the base platform.

[0012] Furthermore, a sealing ring is fixedly installed on the upper end of the piston of the connecting rod piston mechanism of the cylinder assembly. The lower end of the sealing ring is conical, with its lower outer diameter being smaller than its upper outer diameter. The upper outer diameter is larger than the cylinder inner diameter, and the lower outer diameter is smaller than the cylinder inner diameter.

[0013] Compared with existing technologies, the advantages of this invention are: This invention uses only two gears to drive the linkage piston mechanism via a motor, resulting in a relatively simple and compact overall structure with a low failure rate. Furthermore, it provides compressed air to related equipment synchronously through two sets of cylinder assemblies. The check valve rubber plug and spring prevent backflow of compressed air, increasing the output air pressure and velocity, making it suitable for supplying air to various gas-consuming devices. In summary, this invention has promising application prospects. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the split structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the present invention with the components combined.

[0017] Figure 3 This is a partial structural schematic diagram of the present invention.

[0018] Figure 4 This is a cross-sectional structural diagram of the present invention. Detailed Implementation

[0019] Figure 1 , 2As shown in Figures 3 and 4, a V-type double-cylinder high-pressure air pump includes a motor 1, a cylinder bracket 2, a bevel gear 3, a drive bevel gear 4, and a cylinder assembly 5. The motor 1 is bolted to the lower end of the cylinder bracket 2. The cylinder bracket 2 has an opening in the middle, and the shaft of the motor 1 is located outside the upper end of the opening (the outer diameter of the opening is larger than the outer diameter of the motor 1 shaft). The drive gear 4 is fixedly installed on the upper end of the shaft of the motor 1. The cylinder bracket 2 has a fixing seat 21 at its rear end, and a fixing hole in the middle of the fixing seat 21. A bearing 22 is fixedly installed in the fixing hole. A fixing rod (not shown in the figure) is horizontally fixedly installed at the middle of the rear end of the bevel gear 3. A shaft 31 is horizontally installed at the lower front end of the bevel gear 3. The fixing rod of the bevel gear 3 is fixedly installed in the inner ring of the bearing 22. There are two identical sets of cylinder assemblies 5. Each set of cylinder assemblies includes: cylinder head 51, check valve spring 52, check valve rubber plug 53, cylinder head sealing ring 54 (rubber material), cylinder 55, connecting rod piston mechanism 56. An exhaust pipe 511 communicating with the inside of the cylinder head is fixedly installed at the upper right side of the cylinder head 51. The upper middle part of the inside of the cylinder head 51 is... The cylinder 55 has a cylindrical guide groove 512 and a mounting groove 513 at its lower end, which are connected to the exhaust pipe. The cylinder has an exhaust port 551 at the middle of its upper end, and the lower end is an open structure. The upper end of the cylinder 55 is fixedly installed in the mounting groove 513. An annular cylinder head sealing rubber ring 54 is located between the lower end of the mounting groove 513 and the upper outer end of the cylinder 55. The upper outer diameter of the check valve rubber plug 53 (hollow structure) is smaller than the lower outer diameter. The lower end of the spring 52 is tightly fitted onto the upper end of the check valve rubber plug 53, and the outer side of the upper end of the spring 52 is tightly fitted into the guide groove 512. The connecting rod piston mechanism 56... The upper piston is movable and sealed inside the cylinder 55. The lower end of the cylinder 55 has external threads. The left and right sides of the cylinder bracket 2 each have an integrally formed limiting cylinder 23. The lower inner end of the limiting cylinder 23 has internal threads. The lower ends of the cylinders 55 of the two sets of cylinder assemblies are fixedly installed in the two limiting cylinders 23 by threads. The lower connecting rod shaft holes of the connecting rod piston mechanism 56 of the two sets of cylinder assemblies are rotatably sleeved on the outside of the lower shaft 31 at the front end of the bevel gear. There is a limiting groove on the front side of the shaft 31. A retaining ring 32 with an outer diameter larger than the inner diameter of the shaft and the connecting rod shaft hole is inserted into the limiting groove.

[0020] Figure 1 , 2As shown in Figures 3 and 4, the drive gear 4 meshes with the bevel gear 3, and the number of teeth on the drive gear 4 is less than the number of teeth on the bevel gear 3 (1:5). The lower outer side of the check valve rubber plug 53 (the lower middle outer diameter is slightly larger than the inner diameter of the guide groove) is a conical structure (when the piston moves upward, compressed air enters the exhaust pipe 511 upward through the conical surface of the check valve rubber plug 53; when the piston moves downward, under negative pressure, the check valve rubber plug 53 moves downward to seal the exhaust port 551 at the upper end of the cylinder, preventing the air entering the exhaust pipe from flowing back into the cylinder). The lower outer diameter of the check valve rubber plug 53 is smaller than the inner diameter of the guide groove 512, and the outer diameter of the spring 52 is smaller than the inner diameter of the guide groove 512. When the check valve rubber plug 53 is at the bottom dead center, its lower part is in sealed contact with the exhaust port 551 at the upper end of the cylinder. The limiting cylinders 23 distributed on the left and right sides of the cylinder bracket are misaligned, and the lower ends of the connecting rods of the connecting rod piston mechanism 56 of the two sets of cylinder assemblies are misaligned. The cylinder bracket has two limiting cylinders 23 on the front middle side, and the cylinder assembly has a positioning hole 57 on the lower front side of the cylinder (the positioning hole of the cylinder is on the outside of the cylinder and does not communicate with the inside of the cylinder). On the left end, a limiting cylinder and a positioning hole 57 of the cylinder are fixedly installed with a locking pin 6. The cylinder head exhaust pipe 511 of the two sets of cylinder assemblies is connected to a three-way pipe (not shown in the figure) on the outside, with both ends connected by pipes (not shown in the figure). A gas pipe (not shown in the figure) with a valve is fixedly installed at the third end of the three-way pipe. The other end of the valve is connected to the gas-using equipment (not shown in the figure) by a pipe. The lower end of the motor 1 is mounted on a base platform (not shown in the figure). A sealing ring 561 is fixedly installed on the upper end of the piston (hollow structure) of the connecting rod piston mechanism of the cylinder assembly. The lower end of the sealing ring 561 is conical, with its lower outer diameter smaller than its upper outer diameter, and its upper outer diameter slightly larger than the inner diameter of the cylinder 55 (when the piston moves downward, external air enters the cylinder through the conical surface of the sealing ring 561; when the piston moves upward, the piston compresses the air through the sealing ring). The motor 1, cylinder bracket 2, bevel gear 3, drive bevel gear 4, cylinder assembly 5, and all other components are installed in a housing (not shown in the figure), with only the air pipe located on the outside. One side of the housing has multiple vent holes to facilitate the entry of external air into the housing.

[0021] Figure 1 , 2As shown in Figures 3 and 4, this new type of device uses only two gears to drive the connecting rod piston mechanism and other movements via a motor. The overall structure of the equipment is relatively simple and compact, with a low failure rate. In specific operation, after the motor 1 is powered on, its shaft drives the drive gear 4 to rotate (reducing speed and increasing torque). The drive gear drives the bevel gear 3 to rotate clockwise. The bevel gear 3, via shaft 31, drives the piston of the connecting rod piston mechanism 56 of the left cylinder assembly to move upwards within the cylinder (compressed air pushes the check valve rubber plug 53 upwards; compressed air in the left cylinder is discharged through the exhaust pipe of the left cylinder head into the air-using equipment), and also drives the piston of the connecting rod piston mechanism 56 of the right cylinder assembly to move downwards within the cylinder (external air enters the cylinder). After the bevel gear 3 rotates clockwise to a certain angle, the piston of the connecting rod piston mechanism 56 of the right cylinder assembly... The piston of cylinder 6 moves upward along the cylinder (compressed air pushes the check valve rubber plug 53 upward, and the compressed air in the right cylinder is discharged into the air-using equipment through the exhaust pipe of the right cylinder head), and drives the piston of the connecting rod piston mechanism 56 of the left cylinder assembly to move downward along the cylinder (external air enters the cylinder); the above process is continuously repeated, which can continuously input compressed air into the air-using equipment. Since compressed air is supplied to the relevant equipment synchronously through two sets of cylinder assemblies, the check valve rubber plug and spring can prevent the compressed air from flowing back, increase the pressure of the output air, and improve the output air speed, which is suitable for supplying air to various air-using equipment.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0023] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A V-type dual-cylinder high-pressure air pump, comprising a motor, a cylinder bracket, a bevel gear, a drive gear, and a cylinder assembly; characterized in that, The motor is fixedly mounted on the lower end of the cylinder bracket, and the drive gear is fixedly mounted on the upper end of the motor shaft. The cylinder bracket has a mounting base at its rear end, on which a bearing is fixedly mounted. A fixing rod is fixedly mounted on the rear end of the bevel gear, and a shaft is mounted on its front side. The fixing rod of the bevel gear is fixedly mounted inside the inner ring of the bearing. There are at least two sets of cylinder assemblies. Each cylinder assembly includes: a cylinder head, a check valve spring, a check valve rubber plug, a cylinder head seal ring, a cylinder, and a connecting rod piston mechanism. An exhaust pipe is fixedly mounted on the upper side of one side of the cylinder head. The upper and lower ends of the cylinder head have guide grooves and mounting grooves, respectively. The cylinder has an exhaust port at its upper end, and the upper end of the cylinder is fixedly installed in the mounting groove. The cylinder head sealing ring is located between the lower end of the mounting groove and the upper end of the cylinder. The lower end of the spring is fixedly installed on the upper end of the check valve rubber plug, and the upper end of the spring is movably sleeved in the guide groove. The upper piston of the connecting rod piston mechanism is movably sealed and installed in the cylinder. The left and right ends of the cylinder bracket are respectively limited by the limiting cylinders. The lower ends of the cylinders of the two sets of cylinder assemblies are respectively fixedly installed in the two limiting cylinders. The connecting rod shaft holes of the connecting rod piston mechanisms of the two sets of cylinder assemblies are respectively rotatably sleeved on the outside of the shaft of the bevel gear. A retaining ring is fixedly installed on the front side of the shaft.

2. The V-type double-cylinder high-pressure air pump according to claim 1, characterized in that, The driving gear meshes with the bevel gear, and the number of teeth on the driving gear is less than the number of teeth on the bevel gear.

3. The V-type double-cylinder high-pressure air pump according to claim 1, characterized in that, The lower outer side of the check valve rubber plug has a tapered structure. The outer diameter of the lower end of the check valve rubber plug is smaller than the inner diameter of the guide groove, and the outer diameter of the spring is smaller than the inner diameter of the guide groove.

4. A V-type twin-cylinder high-pressure air pump according to claim 1, characterized in that, When the check valve rubber plug is at the bottom dead center, its lower part is in sealed contact with the exhaust port at the top of the cylinder.

5. A V-type double-cylinder high-pressure air pump according to claim 1, characterized in that, The limiting cylinders distributed on the left and right sides of the cylinder bracket are misaligned, and the lower ends of the connecting rods of the connecting rod piston mechanism of the two sets of cylinder assemblies are misaligned.

6. A V-type twin-cylinder high-pressure air pump according to claim 1, characterized in that, The cylinder heads of the two cylinder assemblies have exhaust pipes and a three-way pipe connected at both ends. The third end of the three-way pipe is connected to the air-using equipment via a pipe. The lower end of the motor is mounted on the base platform.

7. A V-type double-cylinder high-pressure air pump according to claim 1, characterized in that, A sealing ring is fixedly installed on the upper end of the piston of the connecting rod piston mechanism of the cylinder assembly. The lower end of the sealing ring is conical, with the outer diameter of the lower end being smaller than that of the upper end. The outer diameter of the upper end is larger than that of the cylinder inner diameter, and the outer diameter of the lower end is smaller than that of the cylinder inner diameter.

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