Compact inflator pump

Abstract

The utility model relates to a compact inflator pump which comprises a shell, a power assembly and an air supply assembly, the power assembly comprises a PCB, a power supply connector and a power element, the PCB is installed in the shell, and the power supply connector and the power element are both electrically connected with the PCB; the air supply assembly comprises a piston, a mounting plate, a fixing plate, an air valve and a cover plate. The power element is used for driving the piston to stretch. The mounting plate and the fixing plate are connected with the two sides of the piston respectively, the fixing plate is provided with a plurality of air holes, and the air valve is inserted into the fixing plate and used for closing or opening the air holes; the cover plate covers the fixing plate. The compact inflator pump is electrically connected with the PCB through the power supply connector and the power element, a built-in battery is not needed for power supply, the size is small, and the weight is light; the power element drives the piston to stretch out and draw back, generated gas drives the gas valve to open or close the gas hole, and inflation is achieved. The compact inflator pump is compact in structure and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of air pumps, in particular to a compact air pump. Background Art

[0002] An air pump, also called an air compressor or a gas pump, works by the operation of a motor. When pumping air, the valve of the communicating vessel is pushed open by the air pressure of the atmosphere, and the gas enters the air cylinder, which is used for inflating tires, basketballs, outdoor tents, etc. For example, the air inflation device disclosed in the publication number CN205268951U has a storage battery installed at the rear end inside the housing. The charging end of the storage battery is connected to one end of the charging circuit board, and the other end of the charging circuit board is connected to the connector. A switch is installed on the outer surface of the housing. The air pump is installed inside the housing through a shock-absorbing leaf spring. The power supply end of the storage battery is connected to one end of the switch, and the other end of the switch is connected to the power supply end of the air pump. The air inflation port of the air pump is connected to one end of the air release valve through a pipeline. However, this air inflation device contains a storage battery, which is large in volume and heavy in weight and is not convenient to carry. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a compact air pump that is convenient to carry in view of the above problems.

[0004] A compact air pump includes a housing, a power component and a gas supply component. The power component includes a PCB board, a power supply connector and a power element. The PCB board is installed inside the housing, and both the power supply connector and the power element are electrically connected to the PCB board. The gas supply component includes a piston, a mounting plate, a fixing plate, a gas valve and a cover plate. The power element is used to drive the piston to expand and contract. The mounting plate and the fixing plate are respectively connected to both sides of the piston. The fixing plate is provided with a plurality of air holes, and the gas valve is inserted into the fixing plate. The gas valve is used to close or open the air holes. The cover plate covers the fixing plate.

[0005] In one embodiment, the piston includes a panel part, a sleeve part and a connecting rod part. One end of the sleeve part is connected to the panel part, and the other end is connected to the connecting rod part. Both the sleeve part and the connecting rod part are multiple and correspond to each other one by one.

[0006] In one embodiment, the gas supply component further includes a linkage. The power element is used to drive the linkage to swing. Each of the connecting rod parts is installed on the linkage.

[0007] In one embodiment, the mounting plate includes a base part and a limiting part. The limiting part is installed on the base part. The panel part is provided with a limiting groove to accommodate the limiting part.

[0008] In one embodiment, the fixing plate includes a substrate portion and a guiding portion. The air valve is inserted into the substrate portion, and the air hole is provided in the substrate portion. The guiding portion is installed at the bottom of the substrate portion and is received in the limiting groove.

[0009] In one embodiment, the air valve includes a baffle portion and a positioning portion. The positioning portion is inserted into the fixing plate, and the baffle portion is used to close or open the air hole.

[0010] In one embodiment, the cover plate includes a cover body portion, a plug portion, and an air pipe portion. The cover body portion covers the fixing plate. The plug portion is installed at the bottom of the cover body portion and is inserted into the fixing plate. The air pipe portion communicates with the cover body portion.

[0011] In one embodiment, the cover body portion is provided with a through hole. The air supply assembly further includes a sensor and a fastener. The sensor covers the through hole, and the fastener is used to fix the sensor and the cover body portion.

[0012] In one embodiment, the air supply assembly further includes a backing plate and a bolt. One end of the backing plate is installed on the power element, and the other end is installed on the mounting plate. The bolt is used to fix the cover plate, the fixing plate, the mounting plate, and the backing plate.

[0013] In one embodiment, the air supply assembly further includes a sealing ring, and the sealing ring is used to seal the fixing plate and the cover plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The compact inflator of the present utility model is electrically connected to the PCB board through both the power supply connector and the power element, without the need for an internal battery for power supply, and has a small volume and light weight. The piston is driven by the power element to expand and contract, and the generated gas drives the air valve to open or close the air hole to achieve inflation. The compact inflator has a compact structure and is convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic assembly structure diagram of the compact inflator shown in an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 a cross-sectional view of the compact inflator shown;

[0018] Figure 3 is Figure 1 an exploded view of the compact inflator shown, in which the housing, the PCB board, and the power supply connector are not shown.

[0019] The meanings of the reference numerals in the drawings are:

[0020] 100. Compact inflator;

[0021] 10. Housing; 11. Outer shell; 12. Sealing plate; 20. Power assembly; 21. PCB board; 22. Power supply connector; 23. Power element; 30. Air supply assembly; 31. Piston; 311. Panel part; 312. Sleeve part; 313. Connecting rod part; 314. Limiting groove; 32. Mounting plate; 321. Base part; 322. Limiting part; 33. Fixed plate; 330. Air hole; 331. Substrate part; 332. Guide part; 34. Air valve; 341. Baffle part; 342. Positioning part; 35. Cover plate; 351. Cover body part; 352. Plug part; 353. Air pipe part; 36. Linkage; 37. Cushion plate; 38. Sealing ring; 39. Sensor. Detailed implementation manners

[0022] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In the present utility model, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0028] Please refer to Figures 1 to 3 , a compact inflator 100 according to an embodiment of the utility model, includes a housing 10, a power assembly 20 and a gas supply assembly 30. The power assembly 20 includes a PCB board, a power supply connector 22 and a power element 23. The PCB board 21 is installed in the housing 10, and both the power supply connector 22 and the power element 23 are electrically connected to the PCB board 21; the gas supply assembly 30 includes a piston 31, a mounting plate 32, a fixing plate 33, a gas valve 34 and a cover plate 35. The power element 23 is used to drive the piston 31 to expand and contract; the mounting plate 32 and the fixing plate 33 are respectively connected to both sides of the piston 31. The fixing plate 33 is provided with a plurality of air holes 330, and the gas valve 34 is inserted into the fixing plate 33. The gas valve 34 is used to close or open the air holes 330; the cover plate 35 is covered on the fixing plate 33. This compact inflator 100 has the PCB board 21 electrically connected to both the power supply connector 22 and the power element 23, eliminating the need for an internal battery for power supply, with a small volume and light weight; the power element 23 drives the piston 31 to expand and contract, and the generated gas drives the gas valve 34 to open or close the air holes 330 to achieve inflation.

[0029] As Figure 1 shown in Figure 2 FIGs. and

[0029] , in this embodiment, the housing 10 includes an outer shell 11 and a sealing plate 12 covering one end of the outer shell 11.

[0030] As Figures 1 to 3 shown in

[0031] Please refer to Figure 2 FIGs. Figures 1 to 3 and Figure 3 together. The air supply assembly 30 includes a piston 31, a mounting plate 32, a fixing plate 33, a valve 34 and a cover plate 35. The power element 23 is used to drive the piston 31 to expand and contract. The mounting plate 32 and the fixing plate 33 are respectively connected to both sides of the piston 31. The fixing plate 33 is provided with a plurality of air holes 330. The valve 34 is inserted into the fixing plate 33, and the valve 34 is used to close or open the air holes 330. The cover plate 35 covers the fixing plate 33 to form an air cavity.

[0032] Optionally, the piston 31 includes a panel portion 311, a sleeve portion 312 and a connecting rod portion 313. One end of the sleeve portion 312 is connected to the panel portion 311, and the other end is connected to the connecting rod portion 313. Both the sleeve portion 312 and the connecting rod portion 313 are multiple and correspond to each other one by one. Further, the panel portion 311 is provided with a limiting groove 314. The piston 31 is made of a soft rubber material to facilitate deformation.

[0033] As Figure 2 shown in Figure 3As shown, the mounting plate 32 includes a base portion 321 and a limiting portion 322, and the limiting portion 322 is mounted on the base portion 321; the limiting portion 322 is received in the limiting groove 314. Optionally, the fixing plate 33 includes a substrate portion 331 and a guiding portion 332, the air valve 34 is inserted into the substrate portion 331, and the air hole 330 is provided in the substrate portion 331; the guiding portion 332 is mounted at the bottom of the substrate portion 331, and the guiding portion 332 is received in the limiting groove 314. In one embodiment, the air valve 34 includes a baffle portion 341 and a positioning portion 342, the positioning portion 342 is inserted into the fixing plate 33, and the baffle portion 341 is used to close or open the air hole 330; optionally, the air valve 34 is made of a soft rubber material so that the baffle portion 341 can be deformed. Further, the cover plate 35 includes a cover body portion 351, a plug portion 352 and a tracheal portion 353, the cover body portion 351 covers the fixing plate 33, the plug portion 352 is mounted at the bottom of the cover body portion 351, and the plug portion 352 is inserted into the fixing plate 33; the tracheal portion 353 communicates with the cover body portion 351, the connecting head is mounted on the tracheal portion 353, and the tracheal portion 353 penetrates through the housing 10; optionally, the cover body portion 351 is provided with a through hole (not labeled in the figure).

[0034] As Figure 2 shown Figure 3 As shown, the air supply assembly 30 further includes a linkage member 36, and the power element 23 is used to drive the linkage member 36 to swing; each connecting rod portion 313 is mounted on the linkage member 36. Optionally, the air supply assembly 30 further includes a backing plate 37 and a bolt (not labeled in the figure), one end of the backing plate 37 is mounted on the power element 23, and the other end is mounted on the mounting plate 32; the bolt is used to fix the cover plate 35, the fixing plate 33, the mounting plate 32 and the backing plate 37. Further, the air supply assembly 30 further includes a sealing ring 38, and the sealing ring 38 is used to seal the fixing plate 33 and the cover plate 35. In one embodiment, the air supply assembly 30 further includes a sensor 39 and a fastener (not labeled in the figure), the sensor 39 covers the through hole so as to detect the air pressure; the fastener is used to fix the sensor 39 and the cover body portion 351.

[0035] In use, the power supply connector 22 is electrically connected through an external connector, and then the PCB board 21 provides power for the power element 23; when inflating, the power element 23 drives the built-in eccentric block to rotate, thereby driving the linkage member 36 to swing, and the linkage member 36 drives each sleeve portion 312 to stretch and compress in sequence. Specifically, when one sleeve portion 312 is in a stretched state, the other sleeve portion 312 is in a compressed state, and the other sleeve portions 312 between these two sleeve portions 312 are in a transitional state; the high-pressure gas generated by the stretching and compression of the sleeve portion 312 pushes open the baffle portion 341, and the high-pressure gas enters the air cavity from the air hole 330 and then is discharged through the tracheal portion 353 to achieve inflation; when the sleeve portion 312 is in a stretched state, the baffle portion 341 closes the air hole 330; when the sleeve portion 312 is in a compressed state, the baffle portion 341 opens the air hole 330. This compact inflator 100 has a compact structure and is easy to carry.

[0036] The compact inflator 100 of the present utility model is electrically connected to the PCB board 21 through both the power supply connector 22 and the power element 23, without the need for an internal battery for power supply, and has a small volume and a light weight; the power element 23 drives the piston 31 to expand and contract, and the generated gas drives the air valve 34 to open or close the air hole 330 to achieve inflation; the compact inflator 100 has a compact structure and is convenient to carry.

[0037] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0038] The above-described embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A compact air pump, characterized in that: It includes a shell, a power assembly and an air supply assembly, the power assembly includes a PCB board, a power supply connector and a power element, the PCB board is installed in the shell, and the power supply connector and the power element are electrically connected to the PCB board; the air supply assembly includes a piston, a mounting plate, a fixing plate, an air valve and a cover plate, and the power element is used to drive the piston to extend and retract; the mounting plate and the fixing plate are respectively connected to two sides of the piston, the fixing plate is provided with a plurality of air holes, the air valve is inserted in the fixing plate, and the air valve is used to close or open the air holes; the cover plate is covered on the fixing plate.

2. The compact air pump according to claim 1, characterized in that: The piston comprises a panel portion, a sleeve portion and a connecting rod portion. One end of the sleeve portion is connected to the panel portion, and the other end is connected to the connecting rod portion. There are multiple sleeve portions and connecting rod portions, and they correspond one to one.

3. The compact air pump according to claim 2, characterized in that: The air supply assembly also includes a linkage member, and the power element is used to drive the linkage member to swing; each of the connecting rod parts is installed on the linkage member.

4. The compact air pump according to claim 2, characterized in that: The mounting plate comprises a base portion and a limiting portion, wherein the limiting portion is mounted on the base portion; and the panel portion is provided with a limiting groove to accommodate the limiting portion.

5. The compact air pump according to claim 4, characterized in that: The fixing plate includes a base plate portion and a guide portion, the air valve is inserted in the base plate portion, and the air hole is arranged in the base plate portion; the guide portion is installed at the bottom of the base plate portion, and the guide portion is accommodated in the limiting groove.

6. The compact air pump according to claim 1, characterized in that: The air valve comprises a baffle portion and a positioning portion, wherein the positioning portion is inserted into the fixing plate, and the baffle portion is used to close or open the air hole.

7. The compact air pump according to claim 1, characterized in that: The cover plate includes a cover body, a latch part and an air pipe part, the cover body part is covered on the fixing plate, the latch part is installed on the bottom of the cover body part, and the latch part is inserted into the fixing plate; the air pipe part is connected to the cover body part.

8. The compact air pump according to claim 7, characterized in that: The cover body is provided with a through hole; the air supply assembly further comprises a sensor and a fastener, the sensor cover is provided in the through hole, and the fastener is used to fix the sensor and the cover body.

9. The compact air pump according to claim 1, characterized in that: The air supply assembly also includes a pad and a bolt, one end of the pad is mounted on the power element, and the other end is mounted on the mounting plate; the bolt is used to fix the cover plate, the fixing plate, the mounting plate and the pad.

10. The compact air pump according to claim 1, characterized in that: The air supply assembly also includes a sealing ring, and the sealing ring is used to seal the fixing plate and the cover plate.

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