CN218780451U - Star type drive structure and multi-cylinder air pump - Google Patents
Star type drive structure and multi-cylinder air pump Download PDFInfo
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- CN218780451U CN218780451U CN202223177001.2U CN202223177001U CN218780451U CN 218780451 U CN218780451 U CN 218780451U CN 202223177001 U CN202223177001 U CN 202223177001U CN 218780451 U CN218780451 U CN 218780451U
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- supporting arm
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- eccentric wheel
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- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Abstract
The utility model relates to a star type drive structure and multi-cylinder air pump, this star type drive structure includes power component and flexible subassembly, and power component includes power shaft, eccentric wheel and adjustable shelf, and the eccentric wheel is worn to establish by the power shaft, and the power shaft is used for driving the eccentric wheel and rotates, and the adjustable shelf cover establishes the eccentric wheel; the telescopic assembly comprises a connecting rod and a fastener, one end of the connecting rod is pivoted to the movable frame, and the fastener is used for fixing the movable frame and the connecting rod; the connecting rods and the fasteners are all multiple and are in one-to-one correspondence; each connecting rod is arranged along the periphery of the movable frame and is positioned on the same plane. The star-shaped driving structure reduces the axial space by respectively pivoting the connecting rods on the periphery of the movable frame, and the connecting rods are positioned on the same plane; the star-shaped driving structure can make full use of axial space and has a compact structure.
Description
Technical Field
The utility model relates to an air pump technical field especially relates to a star type drive structure and multi-cylinder air 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 inflator is used for inflation by using the principle of atmospheric pressure, and is widely applied to the fields of automobiles, motorcycles, bicycles, rubber balls, rubber boats and the like. In the existing air pump mechanism, the piston is pulled or compressed by a traditional right-angle gear and motor driving connecting rod mechanism or a linear driving mode of a screw rod. In order to improve the air flow, a multi-cylinder air pump appears on the market, and is realized by sleeving a plurality of pistons on a connecting rod mechanism, but the air pump has more mechanical parts, larger volume and complex structure and cannot meet the development trend of miniaturization.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a star-shaped driving structure and an air pump having a compact structure.
A star-shaped driving structure comprises a power assembly and a telescopic assembly, wherein the power assembly comprises a power shaft, an eccentric wheel and a movable frame, the power shaft penetrates through the eccentric wheel, the power shaft is used for driving the eccentric wheel to rotate, and the eccentric wheel is sleeved with the movable frame; the telescopic assembly comprises a connecting rod and a fastener, one end of the connecting rod is pivoted to the movable frame, and the fastener is used for fixing the movable frame and the connecting rod; the connecting rods and the fasteners are all multiple and are in one-to-one correspondence; each connecting rod is arranged along the periphery of the movable frame, and each connecting rod is positioned in the same plane.
In one embodiment, the movable frame comprises a fixed seat, a first supporting arm, a second supporting arm and a mounting seat, the first supporting arm and the second supporting arm respectively extend along the horizontal direction of the fixed seat, the first supporting arm and the second supporting arm are arranged at an interval to form an accommodating cavity, and the accommodating cavity is used for accommodating one end of the connecting rod; the mounting seat is arranged on one side, far away from the second supporting arm, of the first supporting arm, and is used for containing the fastening piece.
In one embodiment, the telescopic assembly further comprises a second bearing and a bolt, the second bearing is accommodated at one end of the connecting rod, and the bolt sequentially penetrates through the first supporting arm, the second bearing and the second supporting arm; one end of the fastener is abutted against one end of the bolt.
In one embodiment, the fastener is threadably coupled to the mount.
In one embodiment, the first supporting arm, the second supporting arm and the mounting seat are all multiple and are in one-to-one correspondence; each first supporting arm and the second supporting arm are arranged along the periphery of the fixed seat respectively.
In one embodiment, the power assembly further includes a first bearing and a cam, the first bearing is installed in the fixing seat, the eccentric wheel is sleeved with the first bearing, the cam is connected with one end of the eccentric wheel, and the cam is convexly installed on one side of the fixing seat close to the mounting seat.
In one embodiment, the telescopic assembly further comprises a diaphragm and a pressure plate, and the pressure plate and the connecting rod are respectively used for fixing two sides of the diaphragm.
In one embodiment, the connecting rod comprises a supporting rod part and a vertical plate part, one end of the supporting rod part is pivoted to the movable frame, and the vertical plate part is connected with one end of the supporting rod part, which is far away from the movable frame; the pressing plate comprises a panel part and a positioning part connected with the panel part, and the positioning part is used for inserting the vertical plate part.
In one embodiment, the diaphragm is provided with a limit strip; the riser portion is equipped with first recess, the panel portion is equipped with the correspondence the second recess of first recess, first recess with the cooperation of second recess is in order to hold spacing.
A multi-cylinder air pump comprises the star-shaped driving structure.
The star-shaped driving structure reduces the axial space by respectively pivoting the connecting rods on the periphery of the movable frame, and the connecting rods are positioned on the same plane; the star-shaped driving structure can make full use of axial space and has a compact structure.
Drawings
Fig. 1 is a schematic view of an assembly structure of a star-shaped driving structure according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of the star drive configuration shown in FIG. 1;
FIG. 3 is an exploded view of the movable frame and the telescoping assembly in the star-drive configuration shown in FIG. 1.
The reference numbers in the drawings have the meanings given below:
100. a star-shaped driving structure;
10. a power assembly; 11. a power shaft; 12. an eccentric wheel; 13. a movable frame; 131. a fixed seat; 132. a first support arm; 133. a second support arm; 1331. an accommodating chamber; 1332. a slot; 134. a mounting seat; 14. a first bearing; 15. a cam; 20. a telescopic assembly; 21. a connecting rod; 211. a support rod part; 212. a vertical plate part; 2120. a first groove; 22. a fastener; 23. a second bearing; 24. a bolt; 25. a membrane; 251. a limiting strip; 26. pressing a plate; 261. a panel portion; 2610. a second groove; 262. a positioning part.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 to 3, a multi-cylinder air pump according to an embodiment of the present invention includes a star-shaped driving structure 100, the star-shaped driving structure 100 includes a power assembly 10 and a telescopic assembly 20, the power assembly 10 includes a power shaft 11, an eccentric wheel 12 and a movable frame 13, the telescopic assembly 20 includes a connecting rod 21 and a fastening member 22, the star-shaped driving structure 100 is formed by pivotally connecting a plurality of connecting rods 21 to a periphery of the movable frame 13, and the connecting rods 21 are located on the same plane, so as to reduce an axial space.
As shown in fig. 1 to 3, in the present embodiment, the power assembly 10 includes a power shaft 11, an eccentric wheel 12 and a movable frame 13, the power shaft 11 penetrates through the eccentric wheel 12, the power shaft 11 is used for driving the eccentric wheel 12 to rotate, and the movable frame 13 is sleeved on the eccentric wheel 12; optionally, the movable frame 13 includes a fixed seat 131, a first supporting arm 132, a second supporting arm 133 and a mounting seat 134, the first supporting arm 132 and the second supporting arm 133 extend along a horizontal direction of the fixed seat 131, and the first supporting arm 132 and the second supporting arm 133 are disposed at an interval to form an accommodating cavity 1331; the mounting seat 134 is mounted on a side of the first support arm 132 away from the second support arm 133; further, the second support arm 133 is provided with a slot 1332. In one embodiment, the first supporting arm 132, the second supporting arm 133 and the mounting seat 134 are multiple and are in one-to-one correspondence; each of the first supporting arm 132 and the second supporting arm 133 is disposed along the periphery of the fixing base 131. In an embodiment, the power assembly 10 further includes a first bearing 14 and a cam 15, the first bearing 14 is installed in the fixing base 131, the first bearing 14 is sleeved on the eccentric 12, the cam 15 is connected to one end of the eccentric 12, and the cam 15 is protruded on one side of the fixing base 131 close to the mounting base 134, so as to reduce the axial occupied space.
Referring to fig. 1 to 3 again, the telescopic assembly 20 includes a connecting rod 21 and a fastening member 22, one end of the connecting rod 21 is pivotally connected to the movable frame 13, and the fastening member 22 is used for fixing the movable frame 13 and the connecting rod 21; the connecting rods 21 and the fasteners 22 are multiple and are in one-to-one correspondence; each link 21 is disposed along the periphery of the movable frame 13, and each link 21 is in the same plane, so as to reduce the axial space occupied. Optionally, the mount 134 is for receiving the fastener 22; the accommodating cavity 1331 is used for accommodating one end of the connecting rod 21; further, the connecting rod 21 includes a supporting rod portion 211 and a vertical plate portion 212, one end of the supporting rod portion 211 is pivoted to the movable frame 13, and the vertical plate portion 212 is connected to one end of the supporting rod portion 211 away from the movable frame 13; preferably, the upright plate portion 212 is provided with a first recess 2120. Fastener 22 is threadably connected to mount 134; preferably, the fasteners 22 are screws.
In one embodiment, the telescopic assembly 20 further includes a second bearing 23 and a plug 24, the second bearing 23 is accommodated in one end of the connecting rod 21, and the plug 24 sequentially penetrates through the first supporting arm 132, the second bearing 23 and the second supporting arm 133; one end of the plug 24 is inserted into the slot 1332 and the other end abuts against one end of the fastener 22, thereby fixing the plug 24. The telescopic assembly 20 further comprises a diaphragm 25 and a pressure plate 26, wherein the pressure plate 26 and the connecting rod 21 are respectively used for fixing two sides of the diaphragm 25; optionally, the membrane 25 is provided with a stopper 251; the platen 26 includes a panel portion 261 and a positioning portion 262 connecting the panel portion 261, the positioning portion 262 being used for inserting the riser portion 212; further, the panel portion 261 is provided with a second groove 2610 corresponding to the first groove 2120, and the first groove 2120 and the second groove 2610 cooperate to accommodate the position limiting strip 251, so that the position limiting strip 251 is prevented from being pulled out and separated from the pressure plate 26.
In one embodiment, each telescopic assembly 20 is radially arranged in a star shape with the movable frame 13 as the center; in this embodiment, the number of the telescopic assemblies 20 is six, and the six telescopic assemblies 20 are uniformly distributed along the circumference of the movable frame 13; in other embodiments, telescoping assemblies 20 can be two, three, four, etc.
When in use, the second bearing 23 is arranged in the strut part 211, and the connecting rod 21 is inserted into the accommodating cavity 1331; then, the plug pin 24 is inserted into the slot 1332, the second bearing 23 and the first support arm 132 in sequence, and then the mounting seat 134 is connected by the fastener 22 through screw threads, so that one end of the plug pin 24 is abutted against the second support arm 133, and the other end is abutted against one end of the fastener 22, and the assembly is convenient; moreover, since the accommodating cavity 1331 is formed between the first supporting arm 132 and the second supporting arm 133, the supporting force is small, and if the fastening member 22 is directly inserted into the second supporting arm 133 and the first supporting arm 132, the first supporting arm 132 is easily crushed. Then, the position-limiting strip 251 is accommodated in the first groove 2120, the positioning portion 262 is inserted in the vertical plate portion 212, and at this time, the position-limiting strip 251 is accommodated in the second groove 2610, and the panel portion 261 and the vertical plate portion 212 are fixed by screws, so that the assembly is convenient.
In the star-shaped driving structure 100, the plurality of links 21 are pivotally connected to the periphery of the movable frame 13, and the links 21 are located on the same plane, thereby reducing the axial space; the star-shaped driving structure 100 can fully utilize the axial space and has a compact structure.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A star-shaped driving structure is characterized by comprising a power assembly and a telescopic assembly, wherein the power assembly comprises a power shaft, an eccentric wheel and a movable frame, the power shaft penetrates through the eccentric wheel, the power shaft is used for driving the eccentric wheel to rotate, and the eccentric wheel is sleeved with the movable frame; the telescopic assembly comprises a connecting rod and a fastener, one end of the connecting rod is pivoted to the movable frame, and the fastener is used for fixing the movable frame and the connecting rod; the connecting rods and the fasteners are all multiple and are in one-to-one correspondence; each connecting rod is arranged along the periphery of the movable frame, and each connecting rod is positioned in the same plane.
2. The star-shaped driving structure according to claim 1, wherein the movable frame comprises a fixed seat, a first supporting arm, a second supporting arm and a mounting seat, the first supporting arm and the second supporting arm respectively extend along the horizontal direction of the fixed seat, the first supporting arm and the second supporting arm are arranged at an interval to form a containing cavity, and the containing cavity is used for containing one end of the connecting rod; the mounting seat is arranged on one side, far away from the second supporting arm, of the first supporting arm, and is used for containing the fastening piece.
3. The star-shaped driving structure according to claim 2, wherein the telescopic assembly further comprises a second bearing and a bolt, the second bearing is accommodated at one end of the connecting rod, and the bolt sequentially penetrates through the first supporting arm, the second bearing and the second supporting arm; one end of the fastener is abutted against one end of the bolt.
4. The star drive configuration of claim 2, wherein the fastener is threadably connected to the mount.
5. The star drive configuration of claim 2 wherein the first support arm, the second support arm and the mounting base are all provided in plurality and in one-to-one correspondence; each first supporting arm and the second supporting arm are arranged along the periphery of the fixed seat respectively.
6. The star-shaped driving structure according to claim 2, wherein the power assembly further comprises a first bearing and a cam, the first bearing is installed in the fixing seat, the eccentric wheel is sleeved on the first bearing, the cam is connected with one end of the eccentric wheel, and the cam is convexly installed on one side of the fixing seat close to the mounting seat.
7. The star drive configuration of claim 1 wherein the telescoping assembly further comprises a diaphragm and a pressure plate, the pressure plate and the connecting rod securing both sides of the diaphragm, respectively.
8. The star drive configuration as claimed in claim 7, wherein the connecting rod comprises a supporting rod part and a vertical plate part, one end of the supporting rod part is pivoted to the movable frame, and the vertical plate part is connected to one end of the supporting rod part away from the movable frame; the pressing plate comprises a panel part and a positioning part connected with the panel part, and the positioning part is used for inserting the vertical plate part.
9. The star drive configuration of claim 8 wherein the diaphragm is provided with a stop bar; the riser portion is equipped with first recess, the panel portion is equipped with the correspondence the second recess of first recess, first recess with the cooperation of second recess is in order to hold spacing.
10. A multi-cylinder air pump characterized by comprising the star drive structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223177001.2U CN218780451U (en) | 2022-11-29 | 2022-11-29 | Star type drive structure and multi-cylinder air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223177001.2U CN218780451U (en) | 2022-11-29 | 2022-11-29 | Star type drive structure and multi-cylinder air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218780451U true CN218780451U (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223177001.2U Active CN218780451U (en) | 2022-11-29 | 2022-11-29 | Star type drive structure and multi-cylinder air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218780451U (en) |
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2022
- 2022-11-29 CN CN202223177001.2U patent/CN218780451U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 808, Building 1, No. 16 Keji Fourth Road, Songshanhu Park, Dongguan City, Guangdong Province, 523000 Patentee after: DONGGUAN RICHTEK ELECTRONICS Co.,Ltd. Country or region after: China Address before: No.525, Yirong building, high tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: DONGGUAN RICHTEK ELECTRONICS Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |