A double-cylinder electric air pump

Abstract

The utility model relates to the technical field of electric air pumps, and proposes a double-cylinder electric air pump, including a housing with a housing, an air outlet and an air inlet are arranged on the housing; a one-way valve is arranged at the air inlet; a cylinder body is arranged in the housing, there are two cylinder bodies and both are connected with the air inlet and the air outlet; there are two pistons and they are slidably arranged in the cylinder body; a driving assembly includes a power piece, a transmission rod and an eccentric block, the power piece is arranged in the housing and has two output shafts, there are two eccentric blocks and they are arranged on the output shaft, there are two transmission rods and they are arranged on the output shaft, the other end of the transmission rod is connected to the piston, and the two eccentric blocks are arranged symmetrically on the circumference; an electric assembly is arranged in the housing and electrically connected to the power piece, and the electric assembly is used to provide power to the power piece and control it. Through the above technical scheme, the problem that the inflation efficiency of the existing electric air pump is difficult to further improve due to the simple internal structure is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric charging treasure L, and specifically to a double-cylinder electric air pump. Background Art

[0002] As a commonly used inflation tool in modern life, electric air pumps are popular among users for their convenient and efficient inflation method. Not only can they quickly inflate car and bicycle tires and other inflatable products in a short time, but also, with the continuous improvement of intelligence, they also bring more convenience and safety to users. Its working principle is to drive the piston inside the air pump to reciprocate through the electric motor, thereby compressing the air and introducing it into the inflated object through the air pipe. This process not only saves manpower, but also completes the inflation task in a relatively short time, greatly improving work efficiency.

[0003] Although the inflation efficiency of electric air pumps has been greatly improved compared to manual inflation, the inflation efficiency cannot be further improved due to the limitations of the existing electric air pumps due to their own structure. In addition, due to the small capacity of existing batteries, charging is required when the number of uses is not large. These problems have led to poor customer experience.

[0004] Therefore, a new electric air pump is needed badly. Utility Model Content

[0005] The utility model provides a double-cylinder electric air pump, which solves the problem that the air charging efficiency of the existing electric air pump is difficult to be further improved due to the simple internal structure.

[0006] The technical solution of the utility model is as follows: a double-cylinder electric air pump, comprising:

[0007] A shell body having a containing cavity, wherein an air outlet and an air inlet are arranged on the shell body;

[0008] a one-way valve, arranged in the air inlet and the air outlet;

[0009] A cylinder body, arranged in the accommodating cavity, wherein there are two cylinder bodies and both of them are connected with the air inlet and the air outlet;

[0010] Two pistons are slidably arranged in the cylinder body in a one-to-one manner;

[0011] A driving assembly, comprising a power member, a transmission rod and an eccentric block, wherein the power member is arranged in the accommodating chamber and has two output shafts, the eccentric blocks are two and are arranged one-to-one on the output shafts, the transmission rods are two and are arranged one-to-one on the output shafts, the other ends of the transmission rods are connected one-to-one to the pistons, and the two eccentric blocks are arranged symmetrically around the center of gravity of the power member;

[0012] The electric component is arranged in the accommodating cavity and electrically connected to the power piece, and the electric component is used to provide power to the power piece and perform control.

[0013] As a further technical solution, it also includes a transition gas seat, which is arranged in the accommodating cavity, and an air channel is arranged in the transition gas seat. The air outlet is connected to the air channel by a pipeline, and the air channel is connected to the cylinder body.

[0014] As a further technical solution, there are two air outlets and both are connected to the cylinder body.

[0015] As a further technical solution, it also includes a bracket, which is arranged in the accommodating cavity, the power member is arranged at the top end of the bracket, and the cylinder body is arranged at the bottom end of the bracket.

[0016] As a further technical solution, the two cylinder bodies are arranged side by side and at the same height.

[0017] As a further technical solution, a handle strap is also included, and the handle strap is arranged on the outside of the shell.

[0018] As a further technical solution, the electric assembly includes:

[0019] A battery, disposed in the accommodating cavity and electrically connected to the power member;

[0020] A circuit board, disposed in the accommodating cavity and electrically connected to the battery;

[0021] A control panel is arranged on the housing and electrically connected to the circuit board.

[0022] As a further technical solution, the electric component also includes a charging interface, which is arranged on the housing and electrically connected to the circuit board.

[0023] The working principle and beneficial effects of the utility model are as follows: the double-cylinder electric air pump includes a housing, a one-way valve, a cylinder, a piston, a driving assembly and an electric assembly. Among them, the housing has a containing cavity inside, and an air inlet and an air outlet are opened on the housing, and a one-way valve is arranged in the air inlet and the air outlet to prevent the backflow of gas; the cylinder is arranged in the containing cavity, and the piston is slidably arranged in the cylinder, and the number of the piston and the cylinder is two and one-to-one; the driving assembly includes a power piece, a transmission rod and an eccentric block, the power piece is arranged in the containing cavity, and the power piece has two output shafts, one end of the transmission rod is connected to the output shaft and the other end is connected to the piston, and the transmission rod and the eccentric block are both two, and the eccentric block is arranged in a circularly symmetrical form, that is, in normal operation, one cylinder is exhausting and the other cylinder is taking in air, and the efficiency of inflation is improved by this way of air inlet and outlet. The electric assembly is arranged in the containing cavity and electrically connected to the power piece, and the electric assembly is used to provide power for the movement of the power piece, and the output power of the power piece can be adjusted, thereby adjusting the inflation speed of the entire device.

[0024] The double-cylinder electric air pump provided by the utility model can improve the efficiency of inflation due to the two cylinder bodies arranged inside, and the inflation mode and inflation speed can also be adjusted through the control panel, thereby improving the user experience and facilitating the promotion and application of the product in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Figure 1 A schematic diagram of the structure of a double-cylinder electric air pump provided by the utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure at another angle;

[0028] Figure 3 for Figure 1 Schematic diagram of the structure after the shell is hidden;

[0029] Figure 4 for Figure 3 A schematic diagram of the structure at another angle;

[0030] Figure 5 for Figure 4 Schematic diagram of the mechanism from another angle.

[0031] In the figure: 1. Shell; 2. Cylinder; 3. Piston; 4. Power part; 5. Transmission rod; 6. Eccentric block; 7. Transition air seat; 8. Bracket; 9. Battery; 10. Circuit board; 11. Control panel; 12. Charging interface; 13. Hand strap; 14. Air inlet; 15. Air outlet. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1

[0034] like Figures 1 to 5 As shown, the utility model provides a double-cylinder electric air pump, comprising:

[0035] The housing 1 has a containing cavity, and the housing 1 is provided with an air outlet 15 and an air inlet 14;

[0036] A one-way valve is arranged in the air inlet 14 and the air outlet 15;

[0037] A cylinder body 2 is disposed in the accommodating cavity, and there are two cylinder bodies 2, both of which are connected to the air inlet 14 and the air outlet 15;

[0038] Two pistons 3 are slidably arranged in the cylinder body 2 in a one-to-one manner;

[0039] A driving assembly, comprising a power member 4, a transmission rod 5 and an eccentric block 6, wherein the power member 4 is arranged in the accommodating chamber and has two output shafts, two eccentric blocks 6 are arranged one-to-one on the output shafts, two transmission rods 5 are arranged one-to-one on the output shafts, the other ends of the transmission rods 5 are connected one-to-one to the piston 3, and the two eccentric blocks 6 are arranged symmetrically around the center of gravity of the power member 4;

[0040] The electric component is disposed in the accommodating cavity and electrically connected to the power member 4 , and the electric component is used to provide power to the power member 4 and perform control.

[0041] In this embodiment, the double-cylinder electric air pump includes a housing 1, a one-way valve, a cylinder 2, a piston 3, a drive assembly and an electric assembly. Among them, the housing 1 has a containing cavity inside, and an air inlet 14 and an air outlet 15 are opened on the housing 1, and a one-way valve is arranged in the air inlet 14 and the air outlet 15 to prevent the backflow of gas; the cylinder 2 is arranged in the containing cavity, and the piston 3 is slidably arranged in the cylinder 2, and the number of the piston 3 and the cylinder 2 are both two and one-to-one; the drive assembly includes a power member 4, a transmission rod 5 and an eccentric block 6, the power member 4 is arranged in the containing cavity, and the power member 4 has two output shafts, one end of the transmission rod 5 is connected to the output shaft and the other end is connected to the piston 3, the transmission rod 5 and the eccentric block 6 are both two, and the eccentric block 6 is arranged in a circularly symmetrical form, that is, in normal operation, one cylinder 2 is exhausting and the other cylinder 2 is taking in air, and the efficiency of inflation is improved by this way of air inlet and outlet. The electric component is arranged in the accommodating cavity and electrically connected to the power member 4. The electric component is used to provide power for the movement of the power member 4, and can adjust the output power of the power member 4, thereby adjusting the inflation speed of the entire device.

[0042] like Figure 5 As shown, this embodiment proposes to further include a transition gas seat 7, the transition gas seat 7 is arranged in the accommodating cavity, an air passage is arranged in the transition gas seat 7, the air outlet 15 is connected to the air passage by means of a pipeline, and the air passage is connected to the cylinder body 2

[0043] In this embodiment, in order to make the gas flow smoother, the double-cylinder electric air pump is also provided with a transition gas seat 7, which is arranged at the bottom of the housing 1, and the air inlet end of the cylinder 2 is connected to the transition gas seat 7, and an air passage is arranged on the transition gas seat 7, and the air inlet 14 on the housing 1 is connected to the air passage. External gas first flows into the transition gas seat 7 from the air inlet 14, and then enters the cylinder 2, and as the piston 3 in the cylinder 2 is pressed downward, the gas enters and goes out from the air outlet 15.

[0044] Further, if Figure 1 to Figure 4 As shown, this embodiment proposes that there are two gas outlets 15 and both are connected to the cylinder body 2. Since the pipes connected to the gas outlets 15 have two specifications, two gas outlets 15 are provided, and the two gas outlets 15 correspond to different specifications, which is conducive to improving the market share of the product. The gas outlet 15 is connected to the transition gas seat 7 through the air pipe, and then connected to the cylinder body 2.

[0045] Further, if Figure 4 As shown, this embodiment further includes a bracket 8 , wherein the bracket 8 is disposed in the accommodating cavity, the power member 4 is disposed at the top end of the bracket 8 , and the cylinder body 2 is disposed at the bottom end of the bracket 8 .

[0046] In this embodiment, in order to enable the driving component to work normally and to allow the cylinder body 2 to have appropriate heat dissipation space during operation, a bracket 8 is also provided in the accommodating cavity, the power component 4 is located at the top end of the bracket 8, and the cylinder body 2 is located at the bottom end of the bracket 8. There is a certain space between the power component 4 and the cylinder body 2, which is beneficial to the heat dissipation of the cylinder body 2 in the working state, and can also prevent excessive heat from affecting the power component 4 and reducing the efficiency of the power component 4.

[0047] like Figure 3 and Figure 4 As shown, when the two cylinder bodies 2 are arranged side by side and at the same height, the space for the components in the accommodating cavity can be more effectively laid out and planned.

[0048] like Figure 1 As shown, this embodiment further proposes that a handle strap 13 is provided on the outer side of the housing 1, and the handle strap 13 is detachably connected to the housing 1. The handle strap 13 facilitates the use of the user and improves the customer's experience.

[0049] Embodiment 2

[0050] like Figures 1 to 5 As shown, the utility model provides a double-cylinder electric air pump, including a housing 1, a one-way valve, a cylinder 2, a piston 3, a drive assembly and an electric assembly. Among them, the electric assembly for providing power and control to the power part 4 includes a battery 9, a circuit board 10 and a control panel 11. The battery 9 is a storage battery 9, which can usually be charged and discharged multiple times. The battery 9 is located in the accommodating cavity, the circuit board 10 is located in the accommodating cavity, and the circuit board 10 is electrically connected to the battery 9. The control panel 11 is arranged on the housing 1, and the control panel 11 is electrically connected to the circuit board 10. The user can make the electric air pump work in different states by operating on the control panel 11. Since the battery 9 can be charged and discharged multiple times, the double-cylinder electric air pump provided by the utility model can be effectively reused and is suitable for most places.

[0051] Further, if Figure 4 As shown, this embodiment proposes that the electric component further includes a charging interface 12 , and the charging interface 12 is disposed on the housing 1 and electrically connected to the circuit board 10 .

[0052] In this embodiment, in order to further facilitate the use of customers, a charging interface 12 is also provided. The charging structure is arranged on the housing 1, and the charging interface 12 is electrically connected to the circuit board 10. This arrangement allows customers to complete the charging operation by directly connecting the line to a power source without having to remove the battery 9 for charging.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-cylinder electric air pump, characterized in that: include: A shell (1) having a containing cavity, wherein the shell (1) is provided with an air outlet and an air inlet; a one-way valve, arranged in the air inlet and the air outlet; A cylinder body (2) is arranged in the accommodating cavity, and the cylinder bodies (2) are two and both are connected to the air inlet and the air outlet; Two pistons (3) are slidably arranged in a one-to-one relationship in the cylinder body (2); A driving assembly, comprising a power member (4), a transmission rod (5) and an eccentric block (6), wherein the power member (4) is arranged in the accommodating chamber and has two output shafts, the eccentric blocks (6) are two and are arranged one-to-one on the output shafts, the transmission rods (5) are two and are arranged one-to-one on the output shafts, the other ends of the transmission rods (5) are connected one-to-one to the piston (3), and the two eccentric blocks (6) are arranged symmetrically around the center of gravity of the power member (4) as the center point; An electric component is arranged in the accommodating cavity and electrically connected to the power component (4), and the electric component is used to provide power to the power component (4) and perform control.

2. A double-cylinder electric air pump according to claim 1, characterized in that: It also comprises a transition gas seat (7), wherein the transition gas seat (7) is arranged in the accommodating cavity, an air passage is arranged in the transition gas seat (7), the air outlet is connected to the air passage via a pipeline, and the air passage is connected to the cylinder body (2).

3. A double-cylinder electric air pump according to claim 1, characterized in that: There are two air outlets, both of which are connected to the cylinder body (2).

4. A double-cylinder electric air pump according to claim 1, characterized in that: It also includes a bracket (8), wherein the bracket (8) is arranged in the accommodating cavity, the power member (4) is arranged at the top end of the bracket (8), and the cylinder body (2) is arranged at the bottom end of the bracket (8).

5. A double-cylinder electric air pump according to claim 1, characterized in that: The two cylinder bodies (2) are arranged side by side and are located at the same height.

6. A double-cylinder electric air pump according to claim 1, characterized in that: It also comprises a handle strap (13), wherein the handle strap (13) is arranged on the outer side of the shell.

7. A double-cylinder electric air pump according to any one of claims 1 to 6, characterized in that: The electric component comprises: A battery (9) is disposed in the accommodating cavity and is electrically connected to the power component (4); A circuit board (10) is disposed in the accommodating cavity and is electrically connected to the battery (9); A control panel (11) is arranged on the housing (1) and is electrically connected to the circuit board (10).

8. A double-cylinder electric air pump according to claim 7, characterized in that: The electric component further comprises a charging interface (12), wherein the charging interface (12) is arranged on the housing (1) and is electrically connected to the circuit board (10).

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