CN220522820U - Improved electric air pump - Google Patents

Abstract

The utility model discloses an improved electric air pump, which comprises a shell, a lower cover, an upper cover, a motor, an impeller, a screw for connecting the shell, the lower cover and the upper cover, wherein the upper end of the shell is opened; the motor is arranged on the inner side of the shell and is fixed at the lower end of the lower cover through bolts, the output end of the motor upwards penetrates through the lower cover in a movable mode, and the impeller is arranged in a cavity surrounded by the upper cover and the lower cover and is fixed at the output end of the motor. According to the utility model, through the buckle structure formed by the lower lock frame and the first lock block, the buckle cover, the second lock block and the third lock block are used for preliminarily connecting and fixing the shell, the lower cover body and the upper cover body, so that the shell, the lower cover body and the upper cover body can be assembled and fixed by only one screw, the assembly is more convenient, the air pressure of the air outlet can be improved on the premise of not increasing energy consumption, and the practical effect is better.

Description

Improved electric air pump

Technical Field

The utility model relates to the technical field of air pumps, in particular to an improved electric air pump.

Background

The electric air pump belongs to a centrifugal-inflatable and inhalable dual-function air pump, and realizes high-speed transportation and transmission of air in an internal air channel of the air pump by high-speed rotation of centrifugal fan blades, and pressure difference between an air inlet and an air outlet is manufactured, so that the functions of inflation and inhalation can be realized. The existing electric air pump is generally installed and fixed in a multi-screw fixing mode during assembly, so that certain inconvenience exists in assembly; meanwhile, when the wind pressure of the air outlet needs to be improved, the wind pressure of the air inlet needs to be improved firstly, namely the rotating speed of the air pump needs to be improved, so that the air pump needs to be higher in working power to realize higher wind pressure of the air outlet, and energy consumption needs to be increased when the wind pressure of the air outlet is increased. Therefore, we propose an improved electric air pump.

Disclosure of Invention

The utility model mainly aims to provide an improved electric air pump which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

an improved electric air pump comprises a shell, a lower cover, an upper cover, a motor, an impeller, a screw for connecting the shell, the lower cover and the upper cover, wherein the upper end of the shell is opened, the lower cover is arranged at the upper end of the shell, the upper cover is arranged at the upper end of the lower cover, the upper end of the upper cover is provided with an air outlet, and the upper cover and the lower cover enclose an air inlet together; the motor is arranged on the inner side of the shell and is fixed at the lower end of the lower cover through a bolt, the output end of the motor upwards penetrates through the lower cover movably, and the impeller is arranged in a cavity enclosed by the upper cover and the lower cover and is fixed at the output end of the motor; a first locking block, a second locking block and a first connecting seat are arranged on the peripheral side surface of the shell at intervals along the circumference; the lower cover comprises a disc-shaped lower cover body, the lower cover body is arranged at the upper end of the shell in a covering manner, the upper end of the lower cover body is opened, the middle part of the lower inner wall of the lower cover body is sunken downwards to form a lower movable groove, and a lower air duct surrounding the lower movable groove is arranged in the lower cover body; the lower lock frame, the third lock block and the lower half pipe are arranged on the peripheral side surface of the lower cover body at intervals along the circumference, and the inner cavity of the lower half pipe is communicated with the inlet of the lower air duct; the upper cover comprises an upper cover body which is covered at the upper end of the lower cover body, the lower end of the upper cover body is opened, the middle part of the upper inner wall of the upper cover body is recessed upwards to form an upper movable groove, and an upper air duct surrounding the upper movable groove is arranged in the upper cover body; the periphery of the upper cover body is provided with a buckle cover and an upper half pipe at intervals along the circumference, and the inner cavity of the upper half pipe is communicated with the inlet of the upper air duct; the impeller is movably arranged in the lower movable groove and the upper movable groove; the lower air channel and the upper air channel jointly form an air channel through which air flows, and the contour line of the air channel is formed by fusing a worm line and an arc line; the lower half pipe and the upper half pipe enclose a tubular air inlet together; the lower lock frame is buckled on the first locking piece, and the buckle cover is buckled on the third locking piece and the second locking piece.

Preferably, the upper end face of the first locking block and the upper end face of the second locking block are arranged in a downward inclined mode, and the lower end face of the first locking block and the lower end face of the second locking block are arranged horizontally; the lower lock frame is a U-shaped frame, and the first lock block is clamped on the inner side of the lower lock frame and is abutted with the lower inner wall of the lower lock frame; the upper end of the buckle cover is opened to form a buckle groove, and the buckle groove penetrates through one end of the buckle cover connected with the upper cover body; the third locking piece and the second locking piece are both clamped in the buckling groove, and the second locking piece is abutted with the lower inner wall of the buckling groove.

Preferably, the lower cover body is provided with a first through hole which penetrates up and down, and the first through hole corresponds to the first connecting seat; the upper inner wall of the upper cover body is provided with a second connecting seat, the second connecting seat is provided with a second perforation, the second perforation penetrates through the lower end of the second connecting seat and the upper end of the upper cover body, and the second perforation corresponds to the first perforation in position; the screw is perforated from top to bottom, is perforated in the second number and is connected to the first connecting seat through threads.

Preferably, the upper end of the upper cover body is fixedly connected with a connecting pipe and an air guide pipe, the air guide pipe is arranged on the inner side of the connecting pipe, and the inner cavity of the air guide pipe is communicated with the upper movable groove.

Preferably, the motor is fixed at the lower end of the lower cover body, and the output end of the motor movably penetrates through the lower cover body and is fixedly connected with the lower end of the impeller.

Preferably, the upper end of the impeller is open.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the first locking piece, the second locking piece, the third locking piece, the lower locking frame and the buckle closure, when the lower cover body is fixed at the upper end of the shell and the upper cover body is fixed at the upper end of the lower cover body, the lower cover body is firstly covered at the upper end of the shell and the lower locking frame is buckled on the first locking piece, at the moment, the second locking piece is aligned with the third locking piece, then the upper cover body is covered on the lower cover body, and the buckle closure is buckled on the second locking piece and the third locking piece, so that the primary installation limit of the shell, the lower cover body and the upper cover body is realized, and then a screw penetrates through the second through hole, the first through hole and is connected to the first connecting seat in a threaded manner, so that the shell, the lower cover body and the upper cover body are completely fixed; through the above, through the buckle structure that lower lock frame and a latch segment formed, buckle closure and No. two latch segments, no. three latch segment formed buckle structure, carry out preliminary connection to casing, lower lid and last lid and fix for only need a screw can accomplish the equipment of casing, lower lid and last lid fixed, it is more convenient to assemble.

2. In the utility model, the air duct and the upper air duct jointly form the air duct through which air flows, and the contour line of the air duct is formed by fusing a spiral line and an arc line. The upper end of the impeller is arranged in an open mode; the lower movable groove is attached to the wind cutting surface on the side surface of the impeller, and forms a closed space with the semi-open impeller to form a closed impeller on the structure, so that the working efficiency of the air pump is improved. Simultaneously, set up the impeller in the lower movable groove of indent and the last movable groove of epirelief for in the impeller sinks to the lower lid, form the structure of sinking, make the upper lid cover establish on the impeller, form floating structure, thereby when compressing the volume of the flowing gas in whole wind channel, guaranteed the air-out height at impeller border and wholly be effective air-out height, thereby promoted the export wind pressure, make and promote the air outlet wind pressure under the prerequisite that need not to increase the power consumption, on the use, the effect is better, more energy-conserving.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an improved electric air pump according to the present utility model;

FIG. 2 is a schematic view showing the internal structure of an improved electric air pump according to the present utility model;

FIG. 3 is a schematic structural view of the housing;

FIG. 4 is a schematic view of the overall structure of the lower cover;

FIG. 5 is a schematic view of the overall structure of the upper cover;

FIG. 6 is a cross-sectional view of the upper cover;

fig. 7 is a schematic connection diagram of the buckle cover, the second locking piece and the third locking piece.

In the figure: 1. a housing; 11. a first locking piece; 12. a second locking piece; 13. a first connecting seat; 2. a lower cover; 21. a lower cover; 22. a lower half pipe; 23. a lower movable groove; 24. a lower air duct; 25. a third locking piece; 26. a locking frame is arranged; 27. perforating the first hole; 3. an upper cover; 31. an upper cover; 32. an upper half pipe; 33. an upper movable groove; 34. an upper air duct; 35. a buckle cover; 351. a buckling groove; 36. an air guide pipe; 37. a second connecting seat; 4. a motor; 5. an impeller; 6. and (5) connecting pipes.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-7, an improved electric air pump comprises a shell 1, a lower cover 2, an upper cover 3, a motor 4, an impeller 5, screws for connecting the shell 1, the lower cover 2 and the upper cover 3, wherein the upper end of the shell 1 is opened, the lower cover 2 is arranged at the upper end of the shell 1, the upper cover 3 is covered at the upper end of the lower cover 2, an air outlet is arranged at the upper end of the upper cover 3, and an air inlet is formed by the upper cover 3 and the lower cover 2 in a surrounding manner; the motor 4 is arranged at the inner side of the shell 1 and is fixed at the lower end of the lower cover 2 through bolts, the output end of the motor 4 upwards penetrates through the lower cover 2 movably, and the impeller 5 is arranged in a cavity enclosed by the upper cover 3 and the lower cover 2 and is fixed at the output end of the motor 4; a first locking block 11, a second locking block 12 and a first connecting seat 13 are arranged on the peripheral side surface of the shell 1 at intervals along the circumference; the lower cover 2 comprises a disc-shaped lower cover body 21, the lower cover body 21 is covered on the upper end of the shell 1, the upper end of the lower cover body 21 is opened, the middle part of the lower inner wall of the lower cover body 21 is sunken downwards to form a lower movable groove 23, and a lower air duct 24 surrounding the lower movable groove 23 is arranged in the lower cover body 21; a lower lock frame 26, a third lock block 25 and a lower half pipe 22 are arranged on the peripheral side surface of the lower cover body 21 at intervals along the circumference, and the inner cavity of the lower half pipe 22 is communicated with the inlet of the lower air duct 24; the upper cover 3 comprises an upper cover body 31 which is covered on the upper end of the lower cover body 21, the lower end of the upper cover body 31 is opened, the middle part of the upper inner wall of the upper cover body 31 is recessed upwards to form an upper movable groove 33, and an upper air duct 34 which surrounds the upper movable groove 33 is arranged in the upper cover body 31; the periphery of the upper cover 31 is provided with a buckle cover 35 and an upper half pipe 32 at intervals along the circumference, and the inner cavity of the upper half pipe 32 is communicated with the inlet of the upper air duct 34; the impeller 5 is movably arranged in the lower movable groove 23 and the upper movable groove 33; the lower lock frame 26 is buckled on the first lock block 11, and the buckle cover 35 is buckled on the third lock block 25 and the second lock block 12.

The lower cover body 21 is provided with a first through hole 27 which is penetrated up and down, and the first through hole 27 corresponds to the first connecting seat 13 in position; the upper inner wall of the upper cover body 31 is provided with a second connecting seat 37, the second connecting seat 37 is provided with a second perforation, the second perforation penetrates through the lower end of the second connecting seat 37 and the upper end of the upper cover body 31, and the second perforation corresponds to the first perforation 27 in position; the screw is perforated from top to bottom to form a second through hole, a first through hole 27 and screwed on the first connecting seat 13.

Through the above, when the lower cover 21 is fixed on the upper end of the housing 1 and the upper cover 31 is fixed on the upper end of the lower cover 21, the lower cover 21 is covered on the upper end of the housing 1 and the lower lock frame 26 is fastened on the first lock block 11, at this time, the second lock block 12 is aligned with the third lock block 25, then the upper cover 31 is covered on the lower cover 21, and the fastening cover 35 is fastened on the second lock block 12 and the third lock block 25, thereby realizing preliminary installation limitation of the housing 1, the lower cover 21 and the upper cover 31, and then the screw is threaded on the first connecting seat 13 after passing through the second through hole, the first through hole 27 from top to bottom, thereby completely fixing the housing 1, the lower cover 21 and the upper cover 31.

Further, the lower air duct 24 and the upper air duct 34 together form an air duct through which the air flow flows, and the contour line of the air duct is formed by fusing a spiral line and an arc line. The upper end of the impeller 5 is arranged in an open mode; the lower movable groove 23 is attached to the wind cutting surface on the side surface of the impeller 5, forms a closed space with the semi-open impeller 5, and synthesizes a closed impeller on the structure, thereby improving the working efficiency of the air pump. Meanwhile, the impeller 5 is arranged in the concave lower movable groove 23 and the concave upper movable groove 33, so that the impeller 5 is sunk into the lower cover body 21 to form a sunk structure, the upper cover body 31 is covered on the impeller 5 to form an upward floating structure, the volume of flowing gas in the whole air channel is compressed, the air outlet height at the edge of the impeller 5 is ensured to be the effective air outlet height, the air outlet pressure is improved on the premise of no energy consumption, and the air outlet air conditioner is better in effect and more energy-saving in use.

It should be further noted that, the upper end face of the first locking piece 11 and the upper end face of the second locking piece 12 are both inclined downward, and the lower end face of the first locking piece 11 and the lower end face of the second locking piece 12 are both arranged horizontally; the lower lock frame 26 is a U-shaped frame, and the first lock block 11 is clamped on the inner side of the lower lock frame 26 and is abutted against the lower inner wall of the lower lock frame 26; the upper end of the buckle cover 35 is opened and provided with a buckle groove 351, and the buckle groove 351 penetrates through one end of the buckle cover 35 connected with the upper cover body 31; the third locking piece 25 and the second locking piece 12 are both clamped in the buckling groove 351, and the second locking piece 12 is abutted against the lower inner wall of the buckling groove 351; through the above, the shell 1, the lower cover 21 and the upper cover 31 can be preliminarily fastened together, the use of screws is reduced, and the assembly is convenient.

It should be further noted that the lower half pipe 22 and the upper half pipe 32 together enclose a tubular air inlet; the upper end of the upper cover body 31 is fixedly connected with a connecting pipe 6 and an air guide pipe 36, the air guide pipe 36 is arranged on the inner side of the connecting pipe 6, the inner cavity of the air guide pipe 36 is communicated with the upper movable groove 33, and an opening at the upper end of the air guide pipe 36 is an air outlet. The motor 4 is fixed at the lower end of the lower cover body 21, and the output end of the motor 4 movably penetrates through the lower cover body 21 and is fixedly connected with the lower end of the impeller 5. The impeller 5 is driven to rotate by the motor 4, so that gas enters from the air inlet and is discharged from the air outlet, and the functions of air suction and air supply are realized.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an improved generation electronic air pump, includes casing (1), lower cover (2), upper cover (3), motor (4), impeller (5) and connects the screw of casing (1), lower cover (2) and upper cover (3), its characterized in that: the upper end of the shell (1) is opened, the lower cover (2) is arranged at the upper end of the shell (1), the upper cover (3) is covered at the upper end of the lower cover (2), an air outlet is formed in the upper end of the upper cover (3), and an air inlet is formed in the upper cover (3) and the lower cover (2) in a surrounding mode; the motor (4) is arranged at the inner side of the shell (1) and is fixed at the lower end of the lower cover (2) through bolts, the output end of the motor (4) upwards penetrates through the lower cover (2) in a movable mode, and the impeller (5) is arranged in a cavity formed by the upper cover (3) and the lower cover (2) in a surrounding mode and is fixed at the output end of the motor (4);

a first locking block (11), a second locking block (12) and a first connecting seat (13) are arranged on the peripheral side surface of the shell (1) at intervals along the circumference; the lower cover (2) comprises a disc-shaped lower cover body (21), the lower cover body (21) is covered at the upper end of the shell (1), the upper end of the lower cover body (21) is opened, the middle part of the lower inner wall of the lower cover body (21) is sunken downwards to form a lower movable groove (23), and a lower air duct (24) surrounding the lower movable groove (23) is arranged in the lower cover body (21); a lower lock frame (26), a third lock block (25) and a lower half pipe (22) are arranged on the peripheral side surface of the lower cover body (21) at intervals along the circumference, and the inner cavity of the lower half pipe (22) is communicated with the inlet of the lower air duct (24);

the upper cover (3) comprises an upper cover body (31) which is covered at the upper end of the lower cover body (21), the lower end of the upper cover body (31) is opened, the middle part of the upper inner wall of the upper cover body (31) is upwards sunken into an upper movable groove (33), and an upper air channel (34) surrounding the upper movable groove (33) is arranged in the upper cover body (31); a buckling cover (35) and an upper half pipe (32) are arranged on the peripheral side surface of the upper cover body (31) at intervals along the circumference, and the inner cavity of the upper half pipe (32) is communicated with the inlet of the upper air duct (34);

the impeller (5) is movably arranged in the lower movable groove (23) and the upper movable groove (33); the lower air duct (24) and the upper air duct (34) jointly form an air duct for air flow to flow through, and the contour line of the air duct is formed by fusing a spiral line and an arc line; the lower half pipe (22) and the upper half pipe (32) jointly enclose a tubular air inlet; the lower lock frame (26) is buckled on the first lock block (11), and the buckle cover (35) is buckled on the third lock block (25) and the second lock block (12).

2. An improved electric air pump as set forth in claim 1, wherein: the upper end face of the first locking block (11) and the upper end face of the second locking block (12) are arranged in a downward inclined mode, and the lower end face of the first locking block (11) and the lower end face of the second locking block (12) are arranged horizontally; the lower lock frame (26) is a U-shaped frame, and the first lock block (11) is clamped on the inner side of the lower lock frame (26) and is abutted against the lower inner wall of the lower lock frame (26); the upper end of the buckle cover (35) is opened to form a buckle groove (351), and the buckle groove (351) penetrates through one end, connected with the upper cover body (31), of the buckle cover (35); the third locking block (25) and the second locking block (12) are both clamped in the buckling groove (351), and the second locking block (12) is abutted to the lower inner wall of the buckling groove (351).

3. An improved electric air pump as claimed in claim 2, wherein: a first through hole (27) which is vertically communicated is formed in the lower cover body (21), and the first through hole (27) corresponds to the first connecting seat (13); the upper inner wall of the upper cover body (31) is provided with a second connecting seat (37), the second connecting seat (37) is provided with a second perforation, the second perforation penetrates through the lower end of the second connecting seat (37) and the upper end of the upper cover body (31), and the second perforation corresponds to the first perforation (27); the screw is perforated from top to bottom, is perforated with a second perforation, is perforated with a first perforation (27) and is connected to the first connecting seat (13) in a threaded mode.

4. An improved electric air pump as claimed in claim 3, wherein: the upper cover body (31) upper end fixedly connected with connecting pipe (6) and guide duct (36), guide duct (36) set up in connecting pipe (6) inboard, the inner chamber of guide duct (36) is linked together with last movable groove (33).

5. An improved electric air pump as set forth in claim 4, wherein: the motor (4) is fixed at the lower end of the lower cover body (21), and the output end of the motor (4) movably penetrates through the lower cover body (21) and is fixedly connected with the lower end of the impeller (5).

6. An improved electric air pump as set forth in claim 5, wherein: the upper end of the impeller (5) is arranged in an open mode.