Air pump structure of handheld vacuum machine

Abstract

A rotating shaft extends out of a motor, a cavity is installed on the motor, an eccentric block is installed on the rotating shaft, an inclined hole is formed in the eccentric block, a rod body is arranged at the bottom of a swing disc, the rod body is inserted into the inclined hole, a piston is installed on a first connecting cover, and a second connecting cover is installed on the piston. The end of the piston is fixedly connected with the swing disc, a second air inlet and a second air outlet are formed in the second connecting cover, the piston covers the second air inlet and the second air outlet, a valve plate is arranged between the second air inlet and the second air outlet, the first air inlet and the first air outlet are formed in the end cover, and the second air inlet and the second air outlet are formed in the end cover. The end cover is fixed on the second connecting cover, the first air inlet is communicated with the second air inlet, the first air outlet is communicated with the second air outlet, extracted water is discharged out of the first air outlet through pressure applied by the piston and does not make contact with the motor, and therefore short circuit, motor burning and service life shortening caused by short circuit can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vacuum pump, especially to a hand-held vacuum pump structure. BACKGROUND

[0002] With the rise of vacuum storage, vacuum storage devices and supporting hand-held vacuum pumps for vacuumizing gradually become popular.

[0003] The hand-held vacuum pump on the market is easy to suck the moisture in the container into the vacuum pump when extracting the air in the container, which can cause the motor in the vacuum pump to be short-circuited and burned out, reducing the service life. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a hand-held vacuum pump structure, which solves the problem of short circuit and burning out of the motor in the vacuum pump caused by sucking the moisture into the motor.

[0005] The utility model aims at providing a hand-held vacuum pump structure, which solves the problem of short circuit and burning out of the motor in the vacuum pump caused by sucking the moisture into the motor.

[0006] The utility model discloses a hand-held vacuum pump structure, including the shell, the shell is fixedly arranged with the air pump, the end position of the shell is provided with the bottom cover, the middle position of the bottom cover is provided with the recess, install the connecting ring in the recess, be provided with the first air hole on the connecting ring, be provided with the second air hole in the recess, wherein, the air pump extends the first air inlet and the first air outlet, the edge position of the bottom cover is provided with the exhaust hole, the first air inlet of the air pump is connected with the second air hole of the bottom cover, the first air outlet is connected with the exhaust hole of the bottom cover, the air pump includes motor, cavity, swing disc, first connecting cover, second connecting cover and end cover, the motor extends the pivot shaft, the cavity is installed on the motor, the pivot shaft passes through the cavity and is located in the cavity, the pivot shaft is installed with eccentric block, the eccentric block is provided with inclined hole, the bottom of swing disc is provided with the stem, the stem is inserted into the inclined hole, install the piston on the first connecting cover, the end of piston is fixedly connected with swing disc, be provided with the second air inlet and the second air outlet on the second connecting cover, the piston cover is closed the second air inlet and the second air outlet, be provided with the valve sheet between the second air inlet and the second air outlet, the valve sheet can open or close the second air inlet, the first air inlet and the first air outlet are set up on the end cover, the end cover is fixed on the second connecting cover, the first air inlet is communicated with the second air inlet, the first air outlet and the second air outlet are communicated.

[0007] The first plastic sheet is arranged between the end cover and the second connecting cover.

[0008] The second plastic sheet is arranged between the first connecting cover and the second connecting cover.

[0009] The second plastic sheet is integrally formed with the piston.

[0010] Three pistons are arranged around the axis position, and each piston corresponds to a second air inlet, a second air outlet and a valve plate.

[0011] The shell further comprises a battery and a control circuit board, the battery is electrically connected with the control circuit board, and the control circuit board is electrically connected with the motor.

[0012] The filter cotton is arranged between the bottom cover and the connecting ring.

[0013] The top of the shell is provided with an upper cover, the upper cover covers the control circuit board, the control circuit board is provided with a control switch, the upper cover is provided with a button through hole, and the control switch is located in the button through hole.

[0014] The control circuit board is provided with an electric input end, the upper cover is provided with an electric input port corresponding to the electric input end, and the electric input end is used for charging the battery.

[0015] The shell is provided with a fixing frame, and the air pump and the battery are fixed on the fixing frame.

[0016] Compared with the prior art, the utility model has the following effects:

[0017] 1)The utility model discloses a hand -held vacuum machine air pump structure, including the shell, the shell is fixedly arranged with air pump, the end position of shell is provided with bottom cover, the middle position of bottom cover is provided with recess, install the connecting ring in recess, be provided with first air hole on the connecting ring, be provided with second air hole in recess, wherein, the air pump extends first air inlet and first air outlet, the edge position of bottom cover is provided with exhaust hole, the first air inlet of air pump is connected with the second air hole of bottom cover, the first air outlet is connected with the exhaust hole of bottom cover, the air pump includes motor, cavity, swing disc, first connecting cover, second connecting cover and end cover, the motor extends the pivot shaft, the cavity is installed on motor, the pivot shaft passes through the cavity and is located in the cavity, install eccentric block on the pivot shaft, the eccentric block is provided with inclined hole, the bottom of swing disc is provided with the rod, the rod is inserted into inclined hole, install the piston on first connecting cover, the end of piston is fixedly connected with swing disc, be provided with second air inlet and second air outlet on second connecting cover, the piston cover is closed second air inlet and second air outlet, be provided with valve sheet between second air inlet and second air outlet, the valve sheet can open or close second air inlet, first air inlet and first air outlet are set up on end cover, the end cover is fixed on second connecting cover, first air inlet communicates with second air inlet, first air outlet and second air outlet communicate, and the water of extraction is discharged first air outlet by the pressure of piston, will not contact motor, like this can avoid the short circuit, cause motor burnout, and reduce the life.

[0018] 2)The other advantages of the utility model are described in detail in the embodiment part of the specification. DRAWINGS:

[0019] Figure 1 It is the perspective view of hand -held vacuum machine air pump structure provided by the utility model embodiment;

[0020] Figure 2 It is the exploded view of hand -held vacuum machine air pump structure provided by the utility model embodiment;

[0021] Figure 3 It is the exploded view of hand -held vacuum machine air pump structure provided by the utility model embodiment;

[0022] Figure 4 It is the exploded view of hand -held vacuum machine air pump structure provided by the utility model embodiment;

[0023] Figure 5 It is the perspective view of air pump provided by the utility model embodiment;

[0024] Figure 6 It is the exploded view of air pump provided by the utility model embodiment;

[0025] Figure 7 is an exploded view of the air pump provided by the embodiment of the present application;

[0026] Figure 8 is a sectional view of the air pump provided by the embodiment of the present application. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily mean a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] As Figures 1 to 8As shown, the embodiment provides a handheld vacuum cleaner pump structure, comprising a shell 1, the shell 1 is fixedly provided with a pump 2, the pump 2 is used for extracting air, the end position of the shell 1 is provided with a bottom cover 3, the middle position of the bottom cover 3 is provided with a groove 31, the connecting ring 4 is installed in the groove 31, the first air hole 41 is arranged on the connecting ring 4, the second air hole 311 is arranged in the groove 31, wherein the pump 2 extends out of the first air inlet 201 and the first air outlet 202, the first air inlet 201 is used for extracting the air in the container, the first air outlet 202 discharges the air outside, the edge position of the bottom cover 3 is provided with the air exhaust hole 32, the first air inlet 201 of the pump 2 is connected with the second air hole 311 of the bottom cover 3, the first air outlet 202 is connected with the air exhaust hole 32 of the bottom cover 3, the pump 2 comprises a motor 21, a cavity 22, a swing plate 23, a first connecting cover 24, a second connecting cover 25 and an end cover 26, the motor 21 extends out of the rotating shaft 211, the cavity 22 is installed on the motor 21, the rotating shaft 211 penetrates through and is located in the cavity 22, the eccentric block 27 is installed on the rotating shaft 211, the eccentric block 27 is provided with the inclined hole 271, the bottom of the swing plate 23 is provided with the rod body 231, the rod body 231 is inserted into the inclined hole 271, the piston 28 is installed on the first connecting cover 24, the end of the piston 28 is fixedly connected with the swing plate 23, in the rotating process of the eccentric block 27, the swing plate 23 sequentially compresses the piston 28, the piston is in the shape of a cup, the material is soft glue, after compression, the gas is discharged from the first air outlet 202, when the piston is pulled away, the air enters from the first air inlet 201 in the original shape, the second air inlet 251 and the second air outlet 252 are arranged on the second connecting cover 25, the piston 28 covers the second air inlet 251 and the second air outlet 252, the valve piece 29 is arranged between the second air inlet 251 and the second air outlet 252, the valve piece 29 is in the shape of an umbrella, the piston 28 is opened when air is extracted, the airflow pushes the valve piece 29, when the piston 28 is compressed, the valve piece 29 closes the second air inlet 251, the air is discharged from the second air outlet 252, the valve piece 29 can open or close the second air inlet 251, the first air inlet 201 and the first air outlet 202 are arranged on the end cover 26, the end cover 26 is fixed on the second connecting cover 25, the first air inlet 201 communicates with the second air inlet 251, the first air outlet 202 and the second air outlet 252 communicate, the extracted water is discharged from the first air outlet by the pressure of the piston, without contacting the motor, so that short circuit can be avoided, the motor is not burned, and the service life is shortened.

[0031] As an optional embodiment, the first plastic sheet 203 is arranged between the end cover 26 and the second connecting cover 25, and the first plastic sheet 203 can play a sealing role.

[0032] As an optional embodiment, the first connecting cover 24 and the second connecting cover 25 are provided with a second plastic sheet 204, which plays a role of sealing.

[0033] As an optional embodiment, the second plastic sheet 204 is integrally formed with the piston 28, which can prevent air leakage and make the air outlet more concentrated.

[0034] As an optional embodiment, the piston 28 is provided with three, which are arranged around the axial position, each of the piston 28 corresponds to the second air inlet 251, the second air outlet 252 and the valve plate 29, and the swing disc 23 will press the piston 28 in turn, so that the air outlet is more smooth and the continuity is better.

[0035] As an optional embodiment, the shell 1 is further provided with a battery 5 and a control circuit board 6, the battery 5 and the control circuit board 6 are electrically connected, the battery 5 is used for power supply and power storage, and the control circuit board 6 is electrically connected with the motor 21, and the control circuit board 6 is used for starting or closing the motor 21.

[0036] As an optional embodiment, the bottom cover 3 and the connecting ring 4 are provided with filter cotton 7, and the installation of the filter cotton 7 can avoid the blockage caused by the suction of objects into the vacuum machine.

[0037] As an optional embodiment, the top of the shell 1 is provided with an upper cover 8, the upper cover 8 covers the control circuit board 6, the control circuit board 6 is provided with a control switch 61, the upper cover 8 is provided with a button through hole 81, the control switch 61 is located in the button through hole 81, and the control switch 61 is located at the top of the vacuum machine, so that the operation is convenient.

[0038] As an optional embodiment, the control circuit board 6 is provided with an electric input end 62, the upper cover 8 is provided with an electric input port 82 corresponding to the electric input end 62, and the electric input end 62 is used for charging the battery 5.

[0039] As an optional embodiment, the shell 1 is provided with a fixing frame 9, the air pump 2 and the battery 5 are fixed on the fixing frame 9, and the fixing frame 9 can be used as a component fixing function.

[0040] In use, the connecting ring 4 at the bottom of the vacuum pump is correspondingly matched with the connecting part on the carrier, the control switch 61 is pressed to start the air pump 2, the air in the carrier is extracted into the first air hole 41 of the connecting ring 4, the second air hole 311 is extracted into the first air inlet 201 of the air pump 2, the motor 21 drives the eccentric block 27 to rotate, the swing disc 23 applies pressure to each piston 28 alternately, the cavity enters from the second air inlet 251 of the second connecting cover 25 and is pressed by the piston 28 and then is discharged from the second air outlet 252, the moisture is also discharged, does not contact the motor 21, avoids short circuit, causes the motor to burn out, and shortens the service life.

[0041] The above embodiment is a preferred embodiment of the utility model, but the embodiment of the utility model is not limited to this, any change, modification, replacement, combination, simplification, which is not deviated from the spirit and principle of the utility model, is an equivalent replacement mode, and all are included in the protection scope of the utility model.

Claims

1. A handheld vacuum cleaner pump structure, comprising a shell (1), a pump (2) is fixedly arranged in the shell (1), a bottom cover (3) is arranged at an end position of the shell (1), a recess (31) is arranged at a middle position of the bottom cover (3), a connecting ring (4) is installed in the recess (31), a first air hole (41) is arranged on the connecting ring (4), and a second air hole (311) is arranged in the recess (31), wherein, The air pump (2) extends the first air inlet (201) and the first air outlet (202), characterized in that: the edge position of the bottom cover (3) is provided with the exhaust hole (32), the first air inlet (201) of the air pump (2) is connected with the second air hole (311) of the bottom cover (3), the first air outlet (202) is connected with the exhaust hole (32) of the bottom cover (3), the air pump (2) comprises a motor (21), a cavity (22), a swing plate (23), a first connecting cover (24), a second connecting cover (25) and an end cover (26), the motor (21) extends the rotating shaft (211), the cavity (22) is installed on the motor (21), the rotating shaft (211) passes through the cavity (22) and is located in the cavity (22), the rotating shaft (211) is installed with the eccentric block (27), the eccentric block (27) is provided with the inclined hole (271), the bottom of the swing plate (23) is provided with the rod body (231), the rod body (231) is inserted into the inclined hole (271), the first connecting cover (24) is installed with the piston (28), the end of the piston (28) is fixedly connected with the swing plate (23), the second connecting cover (25) is provided with the second air inlet (251) and the second air outlet (252), the piston (28) covers the second air inlet (251) and the second air outlet (252), the second air inlet (251) and the second air outlet (252) are provided with the valve piece (29), the valve piece (29) can open or close the second air inlet (251), the first air inlet (201) and the first air outlet (202) are provided on the end cover (26), the end cover (26) is fixed on the second connecting cover (25), the first air inlet (201) communicates with the second air inlet (251), the first air outlet (202) and the second air outlet (252) communicate.

2. A hand vacuum pump structure according to claim 1, characterized in that: The first plastic sheet (203) is arranged between the end cover (26) and the second connecting cover (25).

3. The hand vacuum pump structure of claim 1, wherein: The second plastic sheet (204) is arranged between the first connecting cover (24) and the second connecting cover (25).

4. The hand vacuum pump structure of claim 3, wherein: The second plastic sheet (204) is integrally formed with the piston (28).

5. The hand vacuum pump structure of claim 1, wherein: The piston (28) is provided with three, the piston (28) is arranged around the axis position, each piston (28) corresponds to the second air inlet (251), the second air outlet (252) and the valve piece (29).

6. The hand vacuum pump structure of claim 1, wherein: The battery (5) and the control circuit board (6) are further arranged in the shell (1), the battery (5) is electrically connected with the control circuit board (6), and the control circuit board (6) is electrically connected with the motor (21).

7. The hand vacuum pump structure of claim 1, wherein: The filter cotton (7) is arranged between the bottom cover (3) and the connecting ring (4).

8. The hand vacuum pump structure of claim 6, wherein: The top position of the shell (1) is provided with the upper cover (8), the upper cover (8) covers the control circuit board (6), the control circuit board (6) is provided with the control switch (61), the upper cover (8) is provided with the button through hole (81), and the control switch (61) is located in the button through hole (81).

9. The hand vacuum pump structure of claim 8, wherein: The control circuit board (6) is provided with an electric input end (62), and the upper cover (8) is provided with an electric input port (82) corresponding to the electric input end (62), and the electric input end (62) is used for charging the battery (5).

10. The hand vacuum pump structure of claim 6, wherein: The shell (1) is provided with a fixing frame (9), and the air pump (2) and the battery (5) are fixed on the fixing frame (9).

Images