Portable inflating pump

Abstract

The utility model discloses a portable inflating pump which comprises a cylinder barrel, a cylinder barrel fixing frame, an American inflating valve connecting piece and a French inflating valve adapter. An air outlet hole is formed in the cylinder barrel fixing frame, the cylinder barrel is embedded in one end of the cylinder barrel fixing frame, and the American inflating valve connecting piece is connected to the side, back on to the cylinder barrel, of the cylinder barrel fixing frame in an embedded mode; an ejector pin is integrally arranged in the American inflating valve connecting piece; the French inflating valve adapter is in threaded connection with the American inflating valve connecting piece; when the French valve needs to be matched, the French valve adapter is directly matched with the French valve, when the French valve needs to be matched with the American valve, only the French valve adapter needs to be detached from the American valve, the number of structural parts of the whole valve part is small, connection is simple, the functional requirements for being matched with different valves can be met, and the valve part is convenient to assemble and disassemble. And the device is portable.

Description

Technical Field

[0001] This application relates to the field of air pump technology, and more particularly to a portable air pump. Background Technology

[0002] Currently, the most commonly used valves include American valves, French valves, and British valves. Among them, American valves are the most widely used. American valves have a flexible core rod inside, and pressing the core rod can inflate or deflate the object.

[0003] Air pumps typically feature independent structures or conversion structures to accommodate both American and French valve stems, meeting the matching requirements of different valve stems. For example, patent document TWM612353U uses a switching component to match American and French valve stems, while patent document CN112944065A uses a first connecting end and a second connecting end to correspond to French and American valve stems respectively. The structures disclosed in these two patent documents can fully accommodate both French and American valve stems, which is of certain positive significance. However, the overall structure has many components to ensure functional integrity, which makes the production, assembly, and maintenance processes relatively troublesome. This is especially true for mini (small portable) air pumps, where a simple and compact valve stem structure makes the overall product structure more coordinated and compact, and easier to carry. Therefore, providing a valve stem structure that differs from those in the aforementioned documents is relatively important.

[0004] In addition, traditional air pumps usually have a protective casing, both to protect the internal structure and for ease of handling and carrying. Currently, the most common casing connections are screw connections and flexible rib clip connections. The latter is favored because it is a one-piece design and eliminates the need for additional connecting structures. Figure 1 As shown, the top of the protective housing needs to have pre-drilled screw holes to secure the internal cylinder structure of the air pump. To avoid exposing the screw holes and screw structure and to maintain the integrity of the entire device, a protective cover is specially designed to snap onto the top of the protective housing, thus covering the screw holes and screws and providing some protection. Specifically, a snap-fit ​​hole is provided on the top of the protective housing, and a hook-shaped snap-fit ​​rib is correspondingly provided on the protective cover. Under certain conditions, the two are pressed against each other, and the hook-shaped snap-fit ​​rib engages with the snap-fit ​​hole after undergoing slight recoverable elastic deformation, thus achieving the connection. This has certain positive aspects. However, a drawback of this type of snap-fit ​​structure is that it is relatively difficult to remove, and the hook-shaped snap-fit ​​rib is prone to breakage or failure, causing damage to the entire protective cover structure. Utility Model Content

[0005] The application aims to provide a portable inflator pump to solve the above problems.

[0006] To achieve the above-mentioned purpose, the technical scheme of the application is as follows:

[0007] The portable inflator pump comprises a cylinder, a cylinder fixing frame, an American valve connector, and a French valve connector.

[0008] Preferably, the American valve connector is provided with a first internal threaded hole for matching the American valve, the French valve connector is provided with an external threaded head and a second internal threaded hole for matching the French valve at two ends respectively, and the first internal threaded hole is threadedly matched with the external threaded head.

[0009] Preferably, the portable inflator pump further comprises a shell and a cover, the cylinder fixing frame is located in the interior of the shell, the top of the shell is provided with a clamping interface, the side of the cover facing the shell is provided with a clamping rib plate, the shell is provided with a rotating shaft corresponding to the clamping interface, one end of the rotating shaft is located in the interior of the shell, the other end extends out of the exterior of the shell towards the cover, and the extending end of the rotating shaft is provided with a variable-diameter abutting portion for abutting against the clamping rib plate.

[0010] Preferably, the top of the shell is provided with a top plate, and the clamping interface is arranged through the top plate.

[0011] Preferably, the variable-diameter abutting portion is a semicircular plate, the center of the semicircular plate is located at the edge of the end surface of the rotating shaft, and the radius of the semicircular plate is the same as the diameter of the rotating shaft.

[0012] Preferably, the clamping rib plate is radially extended inwardly with a clamping hook at the insertion end, and the outer peripheral wall of the semicircular plate is used for abutting against the clamping hook.

[0013] Preferably, the number of the clamping interface and the clamping rib plate is three.

[0014] Preferably, the side of the cover away from the shell is rotationally provided with a rotating ring, the inner wall of the rotating ring is provided with a first clamping tooth, the outer peripheral wall of the rotating shaft located in the section of the cover away from the shell is provided with a second clamping tooth, and the first clamping tooth and the second clamping tooth are mutually clamped.

[0015] Preferably, the side of the top plate facing the cover is provided with a limiting column, a return spring is arranged between the limiting column and the inner wall of the rotating ring, and the limiting column is located in the area surrounded by the rotating ring.

[0016] Preferably, the side of the rotating ring away from the top plate is provided with a sealing cover, the sealing cover is integrally arranged with the rotating ring; and the sealing cover is provided with a positioning hole for allowing the French valve core conversion head to pass through.

[0017] The portable inflator disclosed in the application has the needle integrally arranged in the inside of the American valve core connecting piece, and the French valve core conversion head is screwed with the American valve core connecting piece. When the French valve core needs to be adapted, the French valve core conversion head is directly adapted with the French valve core. When the American valve core needs to be adapted, the French valve core conversion head is only needed to be detached from the American valve core. The whole valve core part has less structural components and simple connection, can meet the needs of adapting different valve cores, and is light and portable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the inflator shell structure in the prior art;

[0019] Figure 2 It is an internal structure explosion diagram of the inflator;

[0020] Figure 3 It is a schematic diagram of the cover body outside structure in the application;

[0021] Figure 4 It is a schematic diagram of the cover body inside structure in the application;

[0022] Figure 5 It is a schematic diagram of the shell outside structure in the application;

[0023] Figure 6 It is a schematic diagram of the shell inside structure in the application;

[0024] Figure 7 It is a sectional view of the shell and the cover body in the application.

[0025] In the drawings:

[0026] 100, protective shell; 101, clamping hole; 200, protective cover body; 201, hook-shaped clamping rib plate; 3, cover body; 30, clamping rib plate; 31, clamping hook; 32, hole; 33, positioning hole; 330, sealing cover; 34, rotating ring; 35, limiting column; 36, reset spring; 37, first clamping tooth; 4, shell; 40, clamping port; 400, top plate; 41, rotating shaft; 42, second clamping tooth; 43, variable-diameter abutting portion; 5, cylinder barrel; 50, cylinder barrel fixing frame; 51, American valve core connecting piece; 510, needle; 511, first internal thread hole; 512, external thread head; 52, French valve core conversion head; 520, second internal thread hole; 53, protective sleeve. DETAILED DESCRIPTION

[0027] The application will be further described in detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams and only schematically show the basic structure of the application, and thus only show the components related to the application.

[0028] As shown in the drawings, Figure 2 The portable inflator pump comprises a cylinder 5, a cylinder fixing frame 50, an American valve connector 51, and a French valve adapter 52. The cylinder fixing frame 50 is provided with an air outlet hole, and the cylinder 5 is nested at one end of the cylinder fixing frame 50. The American valve connector 51 is nested and connected to the side of the cylinder fixing frame 50 away from the cylinder 5. The American valve connector 51 is integrally provided with a thimble 510 inside. The French valve adapter 52 is screwed with the American valve connector 51.

[0029] The thimble 510 is integrally provided inside the American valve connector 51, and the French valve adapter 52 is screwed with the American valve connector 51. When the French valve is needed to be adapted, the French valve adapter 52 is directly adapted with the French valve. When the American valve is needed to be adapted, the French valve adapter 52 is only needed to be detached from the American valve. The whole valve part has a small number of structural components and simple connection, which can meet the needs of adapting different valves and is portable.

[0030] The French valve is nested with a protective sleeve 53 outside.

[0031] In some further embodiments, the American valve connector 51 is provided with a first internal threaded hole 511 for matching the American valve. The French valve adapter 52 is provided with an external threaded head 512 and a second internal threaded hole 520 for matching the French valve at both ends, respectively. The first internal threaded hole 511 is threadedly matched with the external threaded head 512.

[0032] Specifically, when the French valve is adapted, the first internal threaded hole 511 is screwed with the threaded head of the French valve, and the second internal threaded hole 520 is screwed with the French valve. When the American valve is adapted, the first internal threaded hole 511 is directly screwed with the American valve.

[0033] As shown in the drawings, Figure 1 The protective shell 100 is provided with a clamping hole 101, and the protective cover 200 is provided with a hook-shaped clamping rib plate 201.

[0034] As shown in the drawings, Figures 3-7As shown, the shell 4 and the cover 3 are also included; the cylinder 5 fixing frame is located inside the shell 4; the top of the shell 4 is provided with a clamping interface 40, and the side of the cover 3 facing the shell 4 is provided with a clamping rib plate 30; the shell 4 is provided with a rotating shaft 41 corresponding to the clamping interface 40, one end of the rotating shaft 41 is located inside the shell 4, and the other end extends out of the shell 4, and the extending end of the rotating shaft 41 is provided with a variable-diameter abutting portion 43 for abutting the clamping rib plate 30.

[0035] The shell 4 is cylindrical and has a hollow structure inside to accommodate hardware structures such as motors and circuit boards.

[0036] The top of the shell 4 is provided with a top plate 400, and the clamping interface 40 is arranged through the top plate 400; when the cover 3 is installed, the cover 3 will be directly clamped on the top plate 400 through the clamping interface 40 and the clamping rib plate 30.

[0037] The rotating shaft 41 is rotatably arranged on the top plate 400 of the shell 4 and extends through the top plate 400, and the cover 3 is also provided with a hole 32 for the rotating shaft 41 to pass through; when the rotating shaft 41 is rotated outside, the rotating shaft 41 rotates, and the variable-diameter abutting portion 43 on the end of the rotating shaft 41 inside the shell 4 will gradually abut the end of the clamping rib plate 30 inserted into the clamping interface 40 along the radial direction of the top plate 400, and as the rotating shaft 41 continues to rotate, the abutting effect of the variable-diameter abutting portion 43 on the clamping rib plate 30 gradually increases, eventually making the clamping rib plate 30 more easily separated from the clamping interface 40.

[0038] By arranging the rotating shaft 41 and the variable-diameter abutting portion 43, when it is necessary to disassemble the cover 3 and the shell 4, the variable-diameter abutting portion 43 can be abutted on the clamping rib plate 30 by rotating the rotating shaft 41, so that the clamping rib plate 30 is easily separated from the clamping interface 40, facilitating the separation of the shell 4 and the cover 3; and since the variable-diameter abutting portion 43 directly abuts the end of the clamping rib plate 30, the risk of breaking the clamping rib plate 30 caused by directly using mechanical force to hard disassemble the cover 3 and the shell 4 can be avoided.

[0039] In some further embodiments, the variable-diameter abutting portion 43 is a semicircular plate, and the center of the semicircular plate is located on the edge of the end face of the rotating shaft 41, and the radius of the semicircular plate is the same as the diameter of the rotating shaft 41.

[0040] The variable-diameter abutting portion can be a semicircular plate, and the center of the semicircular plate is arranged on the edge of the rotating end face; when the rotating shaft 41 is rotated, the distance between the edge of the variable-diameter abutting portion on the rotating shaft 41 and the center of the end face of the rotating shaft 41 will gradually increase, thereby gradually abutting the edge of the clamping rib plate 30, so that the clamping rib plate 30 gradually separates from the clamping interface 40.

[0041] In some further embodiments, the insertion end of the clamping rib plate 30 extends radially inwardly with a clamping hook 31; the outer peripheral wall of the semicircular plate is used to abut against the clamping hook 31.

[0042] In actual cases, the part of the outer peripheral wall of the semicircular plate that substantially abuts against is the clamping hook 31; when the clamping rib plate 30 and the clamping interface 40 are clamped with each other, the clamping hook 31 is directly clamped on the side of the top plate 400 that faces away from the cover 3, and forms a clamping with the top plate 400 on the shell 4 on the side of the cover 3 where the clamping rib plate 30 is arranged, thereby achieving the clamping with the clamping interface 40; the outer peripheral wall of the semicircular plate continuously abuts against the clamping hook 31 during the rotation, so that the clamping hook 31 gradually slides into the area of the clamping interface 40 and is separated from the state of clamping the top plate 400 together with the cover 3.

[0043] In some further embodiments, the number of the clamping interface 40 and the clamping rib plate 30 is three.

[0044] The clamping interface 40 and the clamping rib plate 30 are correspondingly arranged with three groups, so as to ensure the stability of the connection between the clamping interface 40 and the clamping rib plate 30.

[0045] In some further embodiments, the side of the cover 3 that faces away from the shell 4 is arranged with a rotating ring 34, the inner wall of the rotating ring 34 is arranged with a first clamping tooth 37; the outer peripheral wall of the rotating shaft 41 located on the side of the cover 3 that faces away from the shell 4 is arranged with a second clamping tooth 42, and the first clamping tooth 37 and the second clamping tooth 42 are clamped with each other.

[0046] The first clamping tooth 37 arranged on the inner wall of the rotating ring 34 is clamped and engaged with the second clamping tooth 42 arranged on the three rotating shafts 41 respectively; when the rotating ring 34 is rotated, the three rotating shafts 41 are synchronously rotated, so that the variable-diameter abutting part 43 correspondingly abuts against the clamping hook 31, and further so that the three clamping rib plates 30 are simultaneously separated from the clamping with the clamping interface 40.

[0047] In some further embodiments, the side of the top plate 400 that faces the cover 3 is arranged with a limiting column 35, and the limiting column 35 and the inner wall of the rotating ring 34 are arranged with a return spring 36; the limiting column 35 is located in the area surrounded by the rotating ring 34.

[0048] In the initial state of the return spring 36, the length of the radius in the variable-diameter abutting part 43 that points to the direction of the corresponding clamping rib plate 30 is the smallest, and with the rotation of the rotating ring 34, i.e. the elongation of the return spring 36, the length of the radius in the variable-diameter abutting part 43 that points to the direction of the corresponding clamping rib plate 30 will gradually increase, until the clamping rib plate 30 is retracted due to the abutment of the clamping hook 31.

[0049] The function of the return spring 36 is to reset the rotating shaft, so as to avoid the continuous abutment of the variable-diameter abutting part 43 against the clamping hook 31 and affect the clamping between the clamping rib plate 30 and the clamping interface 40.

[0050] In some further embodiments, the side of the rotating ring 34 facing away from the top plate 400 is provided with a sealing cover 330, which is integrally arranged with the rotating ring 34; the sealing cover 330 is provided with a clearance hole 33 for allowing the air nozzle to pass through.

[0051] Obviously, the above embodiments are merely exemplary and are not intended to limit the implementation. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and impossible to exhaust all the implementations. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A portable air pump characterized by, The utility model provides a cylinder (5), cylinder fixed frame (50), american valve connecting piece (51), french valve conversion head (52), cylinder fixed frame (50) is equipped with the air hole, cylinder (5) nests one end of cylinder fixed frame (50), american valve connecting piece (51) is nested and connected in the side of cylinder fixed frame (50) away from cylinder (5), the inside integral of american valve connecting piece (51) is equipped with thimble (510), french valve conversion head (52) with american valve connecting piece (51) is screwed.

2. The portable pump according to claim 1, wherein, American valve connecting piece (51) is equipped with the first internal thread hole (511) for matching american valve, both ends of french valve conversion head (52) are equipped with external thread head (512) and the second internal thread hole (520) for matching french valve, the first internal thread hole (511) is screwed with external thread head (512) thread cooperation.

3. The portable pump according to claim 2, wherein, Still include shell (4) and cover (3), cylinder (5) fixed frame is located in the inside of shell (4), the top of shell (4) is equipped with the clamping interface (40), the side of cover (3) towards shell (4) is equipped with the clamping rib plate (30), the corresponding clamping interface (40) of shell (4) is equipped with pivot (41), one end of pivot (41) is located in the inside of shell (4), the other end extends out the outside of shell (4) towards cover (3), the extension end of pivot (41) is equipped with the variable diameter abutment (43) for abutting the clamping rib plate (30).

4. The portable pump according to claim 3, wherein, The top of shell (4) is equipped with top plate (400), the clamping interface (40) is set up through top plate (400).

5. The portable pump according to claim 4, wherein, The variable diameter abutment (43) is semicircular plate, the center of semicircular plate is located in the edge of pivot (41) end face, the radius of semicircular plate is same with the diameter of pivot (41).

6. The portable pump according to claim 5, wherein, The insertion end of clamping rib plate (30) extends radially inwardly with clamping hook (31), the outer peripheral wall of semicircular plate is used for abutting clamping hook (31).

7. The portable pump according to claim 6, wherein, The number of clamping interface (40) and clamping rib plate (30) is all equipped with three.

8. The portable pump according to claim 7, wherein, The side of cover (3) away from shell (4) is rotationally equipped with rotating ring (34), the inner wall of rotating ring (34) is equipped with first clamping tooth (37), the outer peripheral wall of pivot (41) in the section of cover (3) away from shell (4) is equipped with second clamping tooth (42), first clamping tooth (37) and second clamping tooth (42) are mutually clamped.

9. The portable pump according to claim 8, wherein, The side of top plate (400) towards cover (3) is equipped with limiting column (35), reset spring (36) is equipped between limiting column (35) and the inner wall of rotating ring (34), limiting column (35) is located in the area surrounded by rotating ring (34).

10. The portable pump according to claim 9, wherein, The side of the rotating ring (34) facing away from the top plate (400) is provided with a sealing cover (330), the sealing cover (330) is integrally arranged with the rotating ring (34); the sealing cover (330) is provided with a positioning hole (33) for allowing a French valve nozzle conversion head (52) to pass through.

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