Double-cylinder inflator pump

Abstract

The utility model discloses a double-cylinder inflator pump which comprises a support, an air cylinder body with two independent air cylinder cavities is fixedly installed at one end of the support, a piston connecting rod assembly capable of moving horizontally is arranged in each air cylinder cavity, and an air outlet end of the air cylinder body is provided with an air cylinder cover with two independent air outlet cavities. The two air outlet cavities in the air cylinder cover are correspondingly communicated with the two air cylinder cavities one by one, a motor is fixedly installed at the other end of the support, the eccentric wheel and the driven gear disc are installed at the two ends of the connecting main shaft respectively, and the eccentric wheel and the driven gear disc are driven by the single motor through gear transmission to rotate at the same time. The piston connecting rod assemblies connected to the eccentric wheel and the driven gear disc are started at the same time, the double air cylinders work at the same time, and the inflation efficiency is improved. And the whole structure is driven only through a single motor, and it is guaranteed that the whole structure of the inflator pump is more compact, the size is smaller, and carrying and placing are convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of inflator pump, specifically relates to a double cylinder inflator pump. BACKGROUND

[0002] The inflator pump is also called the air compressor, air pump, and is widely used in the fields of automobile, motorcycle and bicycle. The inflator pump works through the operation of the motor. When pumping, the check valve of the piston is opened by the atmospheric pressure, and the gas enters the cylinder. When inflating, the check valve is closed by the air pressure in the cylinder, and the gas enters the tire.

[0003] The existing inflator pump is generally driven by a single motor to drive a single connecting piston to realize inflation. The single use of the inflator pump can only inflate one individual, and the inflation efficiency is low. If a double-motor double-cylinder inflator pump is used, the structure of the whole pump body is large in size, and is inconvenient to carry and place. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a double cylinder inflator pump to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a double cylinder inflator pump, comprising a support, one end of the support is fixedly installed with a cylinder main body with two independent cylinder cavities, and each cylinder cavity is provided with a piston connecting rod assembly capable of moving horizontally, the air outlet end of the cylinder main body is provided with a cylinder cover with two independent air outlet cavities, the two air outlet cavities on the cylinder cover are communicated with the two cylinder cavities one by one, and a group of check valve assemblies are arranged at the corresponding communication positions, the other end of the support is fixedly installed with a motor, the output end of the motor is installed with a driving gear capable of rotating synchronously, the support is rotatably provided with a connecting main shaft through a bearing, one end of the connecting main shaft is rotatably provided with an eccentric wheel, the other end of the connecting main shaft is rotatably provided with a driven gear disc, the driving gear is meshed and transmitted with the driven gear disc, the eccentric wheel drives a group of piston connecting rod assemblies on the corresponding side to reciprocate, and the driven gear disc drives another group of piston connecting rod assemblies on the corresponding side to reciprocate horizontally.

[0006] Preferably, the piston connecting rod assembly comprises a piston head movably located in the cylinder cavity, a connecting rod located at one end of the piston head, and a connecting rod connecting shaft eccentrically installed on the eccentric wheel and the driven gear disc, and the end of the connecting rod is sleeved on the corresponding connecting rod connecting shaft.

[0007] Preferably, a snap spring for preventing the connecting rod from being separated is arranged on the connecting rod connecting shaft, and bearings are arranged at the connecting positions of the connecting rod connecting shaft and the corresponding connecting rod.

[0008] Preferably, each group of said check valve assembly comprises a check valve and a reset spring for the elastic reset of the check valve, said check valve is sealed and fitted at the position where the corresponding cylinder cavity is communicated with the outlet cavity, and said reset spring is connected between the check valve and the cylinder cover.

[0009] Preferably, both ends of said cylinder cover are respectively provided with an outlet interface communicated with the corresponding outlet cavity, one of the outlet interfaces is connected with an outlet pipe A through a bend joint A, and the other outlet interface is connected with an outlet pipe B through a bend joint B.

[0010] Preferably, the output end of the other end of said motor is provided with a synchronous rotating fan blade, and the edge clamping sleeve of said piston head is provided with a rubber ring matched with the cylinder cavity.

[0011] Preferably, the connection positions of said bend joint A and outlet pipe A and the connection positions of said bend joint B and outlet pipe B are both provided with a fastening ring.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] By installing the eccentric wheel and the driven gear disc at the two ends of the connecting main shaft respectively, the eccentric wheel and the driven gear disc are simultaneously rotated by using a single motor through gear transmission, the connecting piston connecting rod assembly on the eccentric wheel and the driven gear disc is simultaneously started, the double cylinders are simultaneously worked, and the inflation efficiency is improved; and the overall structure only needs to be driven by a single motor, so that the structure of the inflation pump as a whole is more compact, the volume is smaller, and the inflation pump is convenient to carry and place. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a sectional structure schematic view of the utility model;

[0016] Figure 3 It is an explosion structure schematic view of the utility model;

[0017] In the drawing: 1, support; 2, motor; 3, fan blade; 4, cylinder main body; 5, cylinder cover; 6, bend joint A; 7, outlet pipe A; 8, bend joint B; 9, outlet pipe B; 10, driving gear; 11, driven gear disc; 12, eccentric wheel; 13, connecting rod; 14, check valve; 15, piston head; 16, connecting rod connecting shaft; 17, reset spring; 18, connecting main shaft; 19, clamping spring. DETAILED DESCRIPTION

[0018] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figure 1 and Figure 3The utility model provides a technical scheme: a double cylinder air pump, including support 1, support 1 one end fixedly installed with the cylinder main part 4 of two independent cylinder cavities, and every cylinder cavity all is provided with the piston connecting rod subassembly of horizontal motion, the gas outlet end of cylinder main part 4 is provided with the cylinder cover 5 of two independent gas outlet cavities, two gas outlet cavities on cylinder cover 5 are communicated with two cylinder cavities respectively one by one correspondence, and a group of check valve assemblies are all provided in the corresponding intercommunication, the other end fixedly installed with motor 2 of support 1, the output of motor 2 is installed with the driving gear 10 of synchronous rotation, support 1 is provided with the connecting main shaft 18 through bearing rotation, the one end synchronous rotation of connecting main shaft 18 is provided with eccentric wheel 12, the other end synchronous rotation of connecting main shaft 18 is provided with driven gear disc 11, driving gear 10 and driven gear disc 11 mesh transmission, eccentric wheel 12 drive corresponding one side's a group of piston connecting rod subassembly reciprocating motion, driven gear disc 11 drive corresponding one side's another group of piston connecting rod subassembly horizontal reciprocating motion.

[0020] Although the embodiments of the present application have been shown and described, it is to be understood that the above detailed description is considered to be illustrative, and not restrictive, and that the scope of the present application is indicated by the appended claims and their equivalents.

Claims

1. A dual-cylinder air pump, comprising a bracket (1), wherein a cylinder body (4) with two independent cylinder chambers is fixedly mounted on one end of the bracket (1), and a horizontally movable piston connecting rod assembly is provided in each cylinder chamber; a cylinder cover (5) with two independent air outlet chambers is provided at the air outlet end of the cylinder body (4); the two air outlet chambers on the cylinder cover (5) are respectively connected to the two cylinder chambers one by one, and a set of check valve assemblies is provided at each corresponding connection point; characterized in that: The other end of the bracket (1) is fixedly provided with a motor (2), the output end of the motor (2) is provided with a driving gear (10) rotating synchronously, the bracket (1) is provided with a connecting main shaft (18) rotating through a bearing, one end of the connecting main shaft (18) is provided with an eccentric wheel (12) rotating synchronously, the other end of the connecting main shaft (18) is provided with a driven gear disc (11) rotating synchronously, the driving gear (10) is in meshing transmission with the driven gear disc (11), the eccentric wheel (12) drives a group of piston connecting rod assemblies on the corresponding side to reciprocate, and the driven gear disc (11) drives another group of piston connecting rod assemblies on the corresponding side to reciprocate horizontally.

2. A twin cylinder air pump as claimed in claim 1, wherein: The piston connecting rod assembly comprises a piston head (15) horizontally movably arranged in a cylinder cavity, a connecting rod (13) arranged at one end of the piston head (15), and a connecting rod connecting shaft (16) eccentrically arranged on the eccentric wheel (12) and the driven gear disc (11), and the end of the connecting rod (13) is sleeved on the corresponding connecting rod connecting shaft (16).

3. A twin cylinder air pump as claimed in claim 2, wherein: A clamping spring (19) for preventing the connecting rod (13) from being separated is clamped on the connecting rod connecting shaft (16), and bearings are arranged at the connecting positions of the connecting rod connecting shaft (16) and the corresponding connecting rod (13).

4. A dual cylinder air pump according to claim 1, wherein: Each group of the check valve assemblies comprises a check valve (14) and a reset spring (17) for elastically resetting the check valve (14), the check valve (14) is sealingly attached at a position where the corresponding cylinder cavity is communicated with the gas outlet cavity, and the reset spring (17) is connected between the check valve (14) and the cylinder cover (5).

5. A twin cylinder air pump as claimed in claim 4, wherein: The cylinder cover (5) is provided with gas outlet interfaces communicated with the corresponding gas outlet cavities at two ends, one of the gas outlet interfaces is connected with a gas outlet pipe A (7) through an elbow A (6), and the other gas outlet interface is connected with a gas outlet pipe B (9) through an elbow B (8).

6. A twin cylinder air pump as claimed in claim 2, wherein: The other end of the motor (2) is provided with a fan blade (3) rotating synchronously, and the edge of the piston head (15) is clamped and sleeved with a rubber ring matched with the cylinder cavity.

7. A twin cylinder air pump as claimed in claim 5 wherein: The connecting positions of the elbow A (6) and the gas outlet pipe A (7) and the connecting positions of the elbow B (8) and the gas outlet pipe B (9) are all provided with fastening rings.

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