A noise-reducing air pump movement

Abstract

The utility model provides a kind of noise reduction air pump core, comprising: motor, cylinder, piston rod, the motor drives piston rod reciprocating motion on cylinder, further include the transmission part being rotatably connected with piston rod, the motor drives piston rod reciprocating motion by transmission part, the transmission part includes transmission gear disc and the connecting rod being rotatably connected on transmission gear disc, the connecting rod both ends are connected piston rod and transmission gear disc respectively by bearing one, bearing two, by increasing the connecting rod of active connection between piston rod and transmission gear disc, it can avoid piston rod to produce deviation with transmission gear disc in the movement process, reduce the possibility of air leakage, reduce vibration and reduce noise simultaneously.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of air pump cores, specifically a noise-reducing air pump core. Background Technology

[0002] Currently, electric air pumps used for inflating tires, balls, and other objects typically consist of an electric motor mounted at the bottom of a base, a cylinder tube mounted on one side of the base, and a piston rod installed within the cylinder tube. The motor's spindle extends to the top of the base and is connected to the rear end of the piston rod via a gear set. An inflation connector with a one-way valve is installed at the end of the cylinder tube. In use, the air pump connects to the object to be inflated via the inflation conduit connected to the inflation connector. The electric motor drives the gear set, causing the piston rod to reciprocate within the cylinder tube, generating pressurized air, which is then introduced into the object through the inflation connector. However, in existing air pump mechanisms, while the piston rod reciprocates under the drive of the transmission mechanism, its end also undergoes non-reciprocating motion, leading to misalignment and potential air leakage. Furthermore, this process generates more vibration and noise. Summary of the Invention

[0003] The purpose of this invention is to provide a pump core to solve the problem of piston rod displacement mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a noise-reducing air pump core is provided, including: a motor, a cylinder, and a piston rod. The motor drives the piston rod to reciprocate on the cylinder. The core also includes a transmission part rotatably connected to the piston rod. The motor drives the piston rod to reciprocate through the transmission part. The transmission part includes a transmission gear plate and a connecting rod rotatably connected to the transmission gear plate. The two ends of the connecting rod are respectively connected to the piston rod and the transmission gear plate through bearing one and bearing two. By adding a movable connecting rod between the piston rod and the transmission gear plate, the piston rod can be prevented from shifting with the transmission gear plate during movement, reducing the possibility of air leakage, and at the same time reducing vibration and noise.

[0005] Furthermore, it also includes a main support frame, with its two ends connected to a motor and a cylinder respectively, and the transmission unit movably connected to the main support frame.

[0006] Furthermore, a bottom bearing is connected to the main support, and a connecting shaft is provided at the bottom of the transmission gear plate. The transmission gear plate is rotatably connected to the main support through the bottom bearing.

[0007] Furthermore, the main support is provided with a stroke groove that cooperates with the piston rod. The piston rod reciprocates within the stroke groove, which serves to limit movement and prevent the piston rod from deviating.

[0008] Furthermore, a gear is connected to the output end of the motor, and the gear meshes with a transmission gear plate.

[0009] Furthermore, a pump head is provided at the other end of the piston rod, and a sealing ring is fitted on the pump head. The sealing ring slides in a sealing manner with the inner wall of the pump chamber of the cylinder, thereby improving airtightness.

[0010] Unlike related technologies, the noise-reducing air pump mechanism of this application adds a movable connecting rod between the piston rod and the transmission gear plate, and sets a stroke groove for limiting the movement. This can prevent the piston rod from shifting with the rotation of the transmission gear plate during the movement, reduce the possibility of air leakage, and at the same time reduce vibration and noise.

[0011] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 3 This is an exploded view of the present invention;

[0015] Figure 4 This is a partial structural diagram of the present invention.

[0016] In the diagram: 1. Motor; 11. Gear; 2. Cylinder; 21. Piston rod; 22. Pump head; 23. Sealing ring; 3. Transmission unit; 31. Transmission gear plate; 311. Connecting shaft; 32. Connecting rod; 33. Bearing 1; 34. Bearing 2; 4. Main support; 41. Bottom bearing; 42. Stroke groove. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] This application provides a noise-reducing air pump mechanism, such as... Figure 1-3 As shown, it includes: a motor 1, a cylinder 2, and a piston rod 21. The motor 1 drives the piston rod 21 to reciprocate on the cylinder 2. It also includes a transmission part 3 rotatably connected to the piston rod 21. The motor 1 drives the piston rod 21 to reciprocate through the transmission part 3. The transmission part 3 includes a transmission gear plate 31 and a connecting rod 32 rotatably connected to the transmission gear plate 31. The two ends of the connecting rod 32 are respectively connected to the piston rod 21 and the transmission gear plate 31 through bearing 33 and bearing 34.

[0021] like Figure 1-2 As shown, it also includes a main support 4, with its two ends connected to a motor 1 and a cylinder 2 respectively. The transmission part 3 is movably connected to the main support 4, and the two ends of the main support 4 are connected to the motor 1 and the cylinder 2 respectively by screws.

[0022] like Figure 3-4 As shown, a bottom bearing 41 is fixedly connected to the main support 4, and a connecting shaft 311 is provided at the bottom of the transmission gear 31. The outer ring of the bottom bearing 41 is tightly fitted with the main support 4, and its inner ring is tightly fitted with the connecting shaft 311. The transmission gear 31 is rotatably connected to the main support 4 through the bottom bearing 41.

[0023] like Figure 3 As shown, the main support 4 is provided with a stroke groove 42 that cooperates with the piston rod 21. The piston rod 21 reciprocates within the stroke groove 42. A pump head 22 is provided at the other end of the piston rod 21. A sealing ring 23 is fitted on the pump head 22. The sealing ring 23 is in a sealing sliding fit with the inner wall of the pumping chamber of the cylinder 2. Under the action of the transmission part, the piston rod 21 drives the pump head 22 to reciprocate within the pumping chamber. The airtightness is improved by setting the sealing ring 23.

[0024] like Figure 3 As shown, the output end of the motor 1 is connected to a gear 11, which meshes with the transmission gear disk 31. The motor 1 drives the gear 11, and the gear 11 drives the transmission gear disk 31 to rotate.

[0025] Specific operating instructions:

[0026] When the mechanism is working, after starting the motor 1, the motor 1 drives the gear 11 connected to the output end to rotate. The gear 11 drives the transmission gear 31 that meshes with it to rotate. The transmission gear 31 drives the connecting rod 32 connected to the transmission gear 31 through the bearing 34. The connecting rod 32 is connected to the piston rod 21 through the bearing 33. The piston rod 21 reciprocates in the stroke groove 42 set on the main support 4 under the drive of the connecting rod 32. The pump head 22 reciprocates in the pumping chamber under the drive of the piston rod 21, thereby completing the pumping work.

[0027] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A noise-reducing air pump mechanism, comprising: The device includes a motor (1), a cylinder (2), and a piston rod (21). The motor (1) drives the piston rod (21) to reciprocate on the cylinder (2). The device also includes a transmission part (3) rotatably connected to the piston rod (21). The motor (1) drives the piston rod (21) to reciprocate through the transmission part (3). The transmission part (3) includes a transmission gear plate (31) and a connecting rod (32) rotatably connected to the transmission gear plate (31). The two ends of the connecting rod (32) are respectively connected to the piston rod (21) and the transmission gear plate (31) through bearing one (33) and bearing two (34).

2. The noise-reducing air pump core according to claim 1, characterized in that, It also includes a main support (4), the two ends of which are connected to a motor (1) and a cylinder (2) respectively, and the transmission part (3) is movably connected to the main support (4).

3. The noise-reducing air pump core according to claim 2, characterized in that, The main support (4) is connected to a bottom bearing (41), and the bottom of the transmission gear (31) is provided with a connecting shaft (311). The transmission gear (31) is rotatably connected to the main support (4) through the bottom bearing (41).

4. The noise-reducing air pump core according to claim 3, characterized in that, The main support (4) is provided with a stroke groove (42) that cooperates with the piston rod (21), and the piston rod (21) reciprocates within the stroke groove (42).

5. The noise-reducing air pump core according to claim 1, characterized in that, The output end of the motor (1) is connected to a gear (11), which meshes with the transmission gear disc (31).

6. The noise-reducing air pump core according to claim 4, characterized in that, The piston rod (21) is provided with a pump head (22) at the other end. A sealing ring (23) is fitted on the pump head (22). The sealing ring (23) is in a sealing sliding fit with the inner wall of the pump chamber of the cylinder (2).

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