Electric inflating device

Abstract

The utility model relates to the technical field of electric inflation, in particular to an electric inflation device. The electric inflation device comprises a machine shell, an inner main body installation frame, an inflation mechanism and a battery assembly. The inner main body mounting frame is mounted in the machine shell, and an inflation mounting cavity and a battery mounting cavity are formed in the inner main body mounting frame; the inflation mechanism is installed in the inflation installation cavity, and the battery assembly is installed in the battery installation cavity. The battery assembly supplies power to the electric inflation device, and the inflation mechanism is used for inflation. According to the electric inflating device, the inner main body mounting frame is arranged in the machine shell, the inflating mounting cavity and the battery mounting cavity are formed in the inner main body mounting frame, and the inflating mechanism and the battery assembly are mounted in the inflating mounting cavity and the battery mounting cavity respectively, have independent mounting positions and spaces, and are not directly mounted in the machine shell; and the inflation mechanism and the battery assembly are firmly mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of electric inflation, in particular to an electric inflation device. Background Art

[0002] An electric inflator, also known as an air pump, is a device used to inflate an object. It is usually filled with air or other gases, and is widely used in the inflation process of objects such as pneumatic tires, inflatable mattresses, inflatable swimming pools, inflatable toys, etc. There are many types of electric inflators depending on the usage scenarios and needs. Common types include handheld electric inflators, vehicle-mounted inflators, home electric inflators, etc. Whether outdoors or indoors, electric inflators provide a convenient and fast inflation solution, making the inflation task simpler and more efficient.

[0003] The electric inflatable device uses a motor as a power device and is equipped with a battery as a power supply. The current electric inflatable device usually directly installs the motor and the battery in the casing, which is not firmly installed and is not convenient for assembly or maintenance and disassembly. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide an electric inflation device to solve the problem that the electric inflation device in the prior art usually directly installs the motor and the battery in the casing, which is not firmly installed and is not convenient for assembly or maintenance and disassembly.

[0005] The utility model discloses an electric inflatable device, comprising a casing, an inner main body mounting frame, an inflatable mechanism and a battery assembly; the inner main body mounting frame is mounted in the casing, and an inflatable mounting cavity and a battery mounting cavity are provided on the inner main body mounting frame; the inflatable mechanism is mounted in the inflatable mounting cavity, and the battery assembly is mounted in the battery mounting cavity; the battery assembly supplies power to the electric inflatable device, and the inflatable mechanism is used for inflating.

[0006] Optionally, the electric inflation device also includes an inflation tube and a power cord, the inflation tube is connected to the inflation mechanism, and the power cord is electrically connected to the inflation mechanism and / or the battery assembly; a storage cavity with an opening is provided on the inner main body mounting frame, the inflation tube and the power cord are led out through the storage cavity, and the inflation tube and the power cord can be stored in the storage cavity.

[0007] Optionally, the electric inflatable device further comprises an inner bottom plate, and the inner bottom plate cover is arranged on the inflatable mounting cavity.

[0008] Optionally, two first mounting columns are arranged on the inner bottom plate, and the inflation tube and the power cord are respectively mounted on the corresponding first mounting columns.

[0009] Optionally, a first mounting socket is provided on the two first mounting columns, and the inflation tube and the power cord are respectively clamped on the first mounting socket; a first limiting ring is installed on the inflation tube, and a positioning groove is provided at the first mounting socket of the first mounting column for installing the inflation tube, and the first limiting ring is installed in the positioning groove; a first clamping connector is provided on the power cord, and the first clamping connector is clamped on the first mounting socket of the first mounting column for installing the power cord.

[0010] Optionally, the inflation mechanism includes a shell, a motor, a piston and a piston bracket; the motor and the piston bracket are installed in the shell, the piston is telescopically installed in the piston bracket and is transmission-connected to the motor, and the motor can drive the piston to reciprocate and telescope in the piston bracket.

[0011] Optionally, the inflation mechanism further comprises a piston outlet seat and a pipe connector, wherein the piston outlet seat is mounted on an end of the piston bracket away from the piston and is connected to the piston bracket, and the piston outlet seat is connected to the inflation pipe through the pipe connector;

[0012] The piston air outlet seat is provided with two oppositely arranged hook parts, and the pipe connecting head is provided with two oppositely arranged hook grooves, and the two hook parts are respectively hooked in the two hook grooves.

[0013] Optionally, the electric inflatable device further includes a circuit board, a circuit board mounting cavity is formed between the housing and the inner body mounting frame, and the circuit board is mounted in the circuit board mounting cavity.

[0014] Optionally, the electric inflatable device also includes an inner mounting seat and a display screen, the inner mounting seat is installed in the circuit board mounting cavity; the inner mounting seat has a first inclined surface facing obliquely upward, the circuit board is installed on the first inclined surface, the display screen is installed on the circuit board, and the casing is provided with a second inclined surface facing obliquely upward, a docking opening is opened on the second inclined surface, and the display screen docks with the docking opening.

[0015] Optionally, the casing includes a front panel, and the electric inflation device also includes an inner shielding plate, the front panel is provided with a plurality of long strip air inlets, and the inner shielding plate is provided with a plurality of air vents; the inner shielding plate is installed on the inner side surface of the front panel and blocks the air inlets.

[0016] Compared with the prior art, the electric inflatable device provided by the embodiment of the utility model has the following beneficial effects: the electric inflatable device of the utility model is provided with an inner main body mounting frame inside the casing, and an inflatable mounting cavity and a battery mounting cavity are provided on the inner main body mounting frame, and the inflatable mechanism and the battery assembly are respectively installed in the inflatable mounting cavity and the battery mounting cavity, and have their own independent installation positions and spaces, instead of being directly installed in the casing. After the inner main body mounting frame is installed in the casing, the casing protects the inner main body mounting frame, the inflatable mechanism and the battery assembly as a component further isolated from the outside world, and because the inflatable mechanism and the battery assembly are not directly installed on the casing, when the electric inflatable device is subjected to external collisions and impacts, it is not easy to affect the inflatable mechanism and the battery assembly, and the inflatable mechanism and the battery assembly are firmly installed. During assembly, the inflatable mechanism and the battery assembly can be first installed on the inner main body mounting frame and then assembled into the casing, so as to realize modular installation, and assembly is more convenient, and it is also easy to disassemble and assemble during maintenance and disassembly due to modularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 is a schematic diagram of an electric inflator according to an embodiment of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of the electric inflator of an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the main body mounting frame in the embodiment of the utility model;

[0021] Figure 4 is another schematic diagram of the main body mounting frame in the embodiment of the utility model;

[0022] Figure 5 It is an exploded schematic diagram of the inflation mechanism and the inner bottom plate of the embodiment of the utility model;

[0023] Figure 6 is another schematic diagram of the electric inflator of an embodiment of the utility model;

[0024] Figure 7 is another schematic diagram of the electric inflator of an embodiment of the utility model;

[0025] Figure 8 is another schematic diagram of the main body mounting frame in the embodiment of the utility model;

[0026] Fig. 9 It is an exploded schematic diagram of the inflation mechanism of the embodiment of the utility model;

[0027] Fig.10It is a schematic diagram of the bottom plate in an embodiment of the utility model;

[0028] Fig.11 It is another exploded schematic diagram of the inflation mechanism of the embodiment of the utility model.

[0029] The reference numerals in the figures are:

[0030] 1. Casing; 11. Front plate; 111. Second inclined surface; 111a. Docking opening; 112. Air inlet; 2. Inner main body mounting frame; 21. Inflatable mounting cavity; 22. Battery mounting cavity; 23. Storage cavity; 24. Circuit board mounting cavity; 3. Inflatable mechanism; 31. Shell; 32. Motor; 33. Piston; 34. Piston bracket; 35. Piston outlet seat; 351. Hook portion; 36. Pipe connector; 361. Hook groove; 37. Gear set; 4. Battery assembly; 5. Inflatable tube; 51. First limit ring; 6. Power cord; 61. First clamping joint; 7. Inner bottom plate; 71. First mounting column; 711. First mounting bayonet; 712. Positioning groove; 8. Circuit board; 9. Inner mounting seat; 10. Display screen; 20. Inner baffle plate; 201. Air vent; 30. Cover plate. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0032] The utility model embodiment provides an electric inflatable device, such as Figures 1 to 5 As shown, the electric inflatable device includes a casing 1, an inner main body mounting frame 2, an inflating mechanism 3 and a battery assembly 4; the inner main body mounting frame 2 is installed in the casing 1, and an inflating mounting cavity 21 and a battery mounting cavity 22 are provided on the inner main body mounting frame 2; the inflating mechanism 3 is installed in the inflating mounting cavity 21, and the battery assembly 4 is installed in the battery mounting cavity 22; the battery assembly 4 supplies power to the electric inflatable device, and the inflating mechanism 3 is used for inflation.

[0033] The electric inflatable device of the utility model is provided with an inner main body mounting frame 2 inside the housing 1, and an inflatable mounting cavity 21 and a battery mounting cavity 22 are provided on the inner main body mounting frame 2, and the inflatable mechanism 3 and the battery assembly 4 are respectively installed in the inflatable mounting cavity 21 and the battery mounting cavity 22, and have their own independent installation positions and spaces, instead of being directly installed in the housing 1. After the inner main body mounting frame 2 is installed in the housing 1, the housing 1 is used as a component to further isolate from the outside to protect the inner main body mounting frame 2, the inflatable mechanism 3 and the battery assembly 4, and because the inflatable mechanism 3 and the battery assembly 4 are not directly installed on the housing 1, when the electric inflatable device is subjected to external collisions and impacts, it is not easy to affect the inflatable mechanism 3 and the battery assembly 4, and the inflatable mechanism 3 and the battery assembly 4 are firmly installed. During assembly, the inflatable mechanism 3 and the battery assembly 4 can be first installed on the inner main body mounting frame 2 and then assembled into the housing 1, so as to realize modular installation, and assembly is more convenient, and it is also easy to disassemble and assemble during maintenance and disassembly due to modularization.

[0034] Specifically, the inner body mounting frame 2 can be installed in the housing 1 by fasteners such as screws, and the inflation mechanism 3 and the battery assembly 4 can also be installed in the inflation installation cavity 21 and the battery installation cavity 22 by fasteners such as screws. The battery assembly 4 may include multiple battery cells and a power management circuit board, etc., which are not specifically limited in the present utility model.

[0035] Combination Figures 6 to 8 As shown, the electric inflatable device also includes an inflatable tube 5 and a power cord 6, the inflatable tube 5 is connected to the inflatable mechanism 3, and the power cord 6 is electrically connected to the inflatable mechanism 3 and / or the battery assembly 4; the inner body mounting frame 2 is provided with a storage cavity 23 with an opening, and the inflatable tube 5 and the power cord 6 are led out through the storage cavity 23, and the inflatable tube 5 and the power cord 6 can be stored in the storage cavity 23. The inner body mounting frame 2 is provided with a storage cavity 23 with an opening, and the inflatable tube 5 and the power cord 6 are led out through this storage cavity 23. With such a design, when not in use, the inflatable tube 5 and the power cord 6 can be conveniently stored in the storage cavity 23, avoiding the confusion and entanglement of the wires when stored or carried for a long time, so that the electric inflatable device is more compact, easy to carry and store, and can also store other commonly used tools. When in use, since the inflation tube 5 and the power cord 6 are stored in the storage chamber 23 and can be led out through the storage chamber 23, they can be directly taken out from the storage chamber 23 when in use, saving construction time and operation steps. The storage chamber 23 provides protection for the inflation tube 5 and the power cord 6, reducing the risk of damage from the outside or tripping others, thereby extending the life of the electric inflation device. Specifically, a cover plate 30 can be further provided on the housing 1 to cover and seal the storage chamber 23.

[0036] The power cord 6 can charge the battery assembly 4, directly supply power to the inflation mechanism 3 and other energy-demanding components of the electric inflation device, or simultaneously charge the battery assembly 4 and supply power to the inflation mechanism 3 and other energy-demanding components of the electric inflation device, so that the battery assembly 4 can supply power when an external power source cannot be connected. The power cord 6 can be electrically connected to the inflation mechanism 3 and the battery assembly 4 through the power distribution of the circuit board 8 described below.

[0037] like Figures 3 to 5 As shown, the electric inflatable device also includes an inner bottom plate 7, which is covered on the inflatable installation cavity 21. The inner bottom plate 7 can play a role in sealing and dustproofing, and can effectively prevent dust, dirt and other impurities from directly entering the inflatable installation cavity 21, which helps to keep the inside of the inflatable installation cavity 21 clean. The inner bottom plate 7 also serves as a structural support, and can also effectively reduce the noise and vibration during the use of the inflatable mechanism 3, and can absorb and slow down the spread of noise and vibration to a certain extent, thereby improving the comfort of the user and the working stability of the electric inflatable device.

[0038] like Fig. 9 and Fig.10 As shown, two first mounting columns 71 are provided on the inner bottom plate 7, and the air tube 5 and the power cord 6 are respectively mounted on the corresponding first mounting columns 71. By mounting the air tube 5 and the power cord 6 on the first mounting columns 71, it is possible to ensure that the positions of the air tube 5 and the power cord 6 are fixed and stable, which helps to prevent the air tube 5 and the power cord 6 from moving or loosening during use, and ensures that they are correctly connected and function normally. At the same time, by mounting the air tube 5 and the power cord 6 on the first mounting columns 71, the air tube 5 and the power cord 6 can be effectively organized and stored, which helps to reduce the confusion and entanglement of the wires and improve the neatness and maintainability of the overall wiring. In addition, by using the first mounting columns 71, the installation positions of the air tube 5 and the power cord 6 can be reasonably allocated on the inner bottom plate 7, which helps to optimize space utilization, avoid pipeline crossing and interference, and ensure that the internal layout of the equipment is compact and effective.

[0039] Specifically, a first mounting socket 711 is provided on the two first mounting columns 71, and the inflation tube 5 and the power cord 6 are respectively clamped on the first mounting socket 711; a first limiting ring 51 is installed on the inflation tube 5, and a positioning groove 712 is provided at the first mounting socket 711 of the first mounting column 71 for installing the inflation tube 5, and the first limiting ring 51 is installed in the positioning groove 712; a first clamping connector 61 is provided on the power cord 6, and the first clamping connector 61 is clamped on the first mounting socket 711 of the first mounting column 71 for installing the power cord 6.

[0040] The first limiting ring 51 plays a role of fixing the position in the positioning groove 712, ensuring that the air tube 5 is installed in the correct position and preventing it from being offset or loosened. Through the first mounting bayonet 711 and the first clamping joint 61, the power cord 6 can be firmly connected to the first mounting column 71. Such a fixing and connecting method can ensure the stability and safety of the air tube 5 and the power cord 6, prevent them from accidentally falling off or disconnecting during use, and prevent the air tube 5 and the power cord 6 from unnecessary movement during the pulling process. When the air tube 5 and the power cord 6 need to be disassembled or repaired, the connection between the first limiting ring 51, the first clamping joint 61 and the first mounting bayonet 711 can be easily released, making the maintenance and replacement process more convenient and efficient without complicated disassembly.

[0041] Specifically, the two first mounting columns 71 may be located at both sides of the inflation mechanism 3 , that is, the inflation tube 5 and the power cord 6 are respectively led out from both sides of the inflation mechanism 3 , thereby reasonably utilizing the internal space.

[0042] like Fig. 9 and Fig.11 As shown, the inflation mechanism 3 includes a housing 31, a motor 32, a piston 33 and a piston bracket 34. The motor 32 and the piston bracket 34 are installed in the housing 31, and the piston 33 can be telescopically installed in the piston bracket 34, and is connected to the motor 32 by transmission, and the motor 32 can drive the piston 33 to reciprocate in the piston bracket 34. The motor 32 is connected to the piston 33 by a transmission connection, and can drive the reciprocating motion of the piston 33. Such a design can effectively transmit the power provided by the motor 32 to the piston 33, thereby achieving the purpose of inflation. The piston bracket 34 provides stable support and guidance, so that the piston 33 can smoothly perform telescopic motion in the piston bracket 34 and output inflation, which helps to reduce friction and vibration, thereby improving the stability and working efficiency of the inflation mechanism 3. The housing 31, as the outer shell of the inflation mechanism 3, accommodates key components such as the motor 32, the piston 33 and the piston bracket 34. By combining them together, the modularization of the inflation mechanism 3 as a whole is realized, which is convenient for assembly and disassembly, realizes the compact layout of the overall structure, and improves the space utilization efficiency of the inflation mechanism 3. At the same time, the housing 31 can also isolate and absorb, to a certain extent, the vibration and noise generated by the motor 32 , the piston 33 and the piston support 34 during operation.

[0043] Specifically, the piston 33 and the motor 32 are connected by a gear set 37, and one end of the piston 33 is eccentrically connected to the side of the gear of the gear set 37 to realize the reciprocating telescopic motion of the piston 33, thereby pumping air and filling the gas into the object to be inflated.

[0044] The inflatable mechanism 3 also includes a piston outlet seat 35 and a pipe connector 36. The piston outlet seat 35 is installed at one end of the piston bracket 34 away from the piston 33 and is connected to the piston bracket 34. The piston outlet seat 35 is connected to the inflatable tube 5 through the pipe connector 36. Two relatively arranged hook portions 351 are arranged on the piston outlet seat 35, and two relatively arranged hook grooves 361 are provided on the pipe connector 36. The two hook portions 351 are hooked in the two hook grooves 361 respectively. Through the design of the hook portions 351 and the hook grooves 361, the piston outlet seat 35 and the pipe connector 36 can be firmly connected together. The two hook portions 351 match the two hook grooves 361, which can ensure the stability and reliability of the connection and prevent the connection from accidentally loosening or falling off during use. When the inflatable tube 5 needs to be disassembled or replaced, the hook connection between the piston outlet seat 35 and the pipe connector 36 can be released. This design makes the disassembly and replacement process more convenient and efficient, without the need for complex disassembly of the entire inflatable mechanism 3. The connection between the piston air outlet seat 35 and the pipe connector 36 is achieved through the hook portion 351 and the hook groove 361, which can also provide good sealing performance, help prevent gas leakage, ensure the normal operation of the inflation mechanism 3 and achieve the expected inflation effect.

[0045] Replay Figures 2 to 4 The electric inflatable device further includes a circuit board 8, and a circuit board mounting cavity 24 is formed between the housing 1 and the inner body mounting frame 2, and the circuit board 8 is mounted in the circuit board mounting cavity 24. The circuit board mounting cavity 24 provides a dedicated space for mounting and protecting the circuit board 8, which can prevent the circuit board 8 from direct contact and physical damage from the external environment, or interference with other components, thereby improving the stability and reliability of the circuit board 8. At the same time, the circuit board mounting cavity 24 provides a fixed position for mounting the circuit board 8, which helps to organize and manage the circuit layout, reduce the confusion of cables and connectors, or interference with other components.

[0046] Further integration Figure 1As shown, specifically, the electric charging device also includes an inner mounting seat 9 and a display screen 10, and the inner mounting seat 9 is installed in the circuit board mounting cavity 24; the inner mounting seat 9 has a first inclined surface facing obliquely upward, the circuit board 8 is installed on the first inclined surface, and the display screen 10 is installed on the circuit board 8. The housing 1 is provided with a second inclined surface 111 facing obliquely upward, and a docking opening 111a is provided on the second inclined surface 111, and the display screen 10 docks with the docking opening 111a. The design of the first inclined surface of the inner mounting seat 9 makes the circuit board 8 and the display screen 10 face obliquely upward, and the second inclined surface 111 has a docking opening 111a, and the display screen 10 docks with the docking opening 111a, providing a better viewing angle, and the display screen 10 can be more easily observed and operated by the user, improving the user's experience and convenience. At the same time, the inner mounting seat 9 provides a mounting position for the circuit board 8, making the installation of the circuit board 8 more convenient and firm, and can keep the circuit board 8 and the display screen 10 at the desired angle at the same time. It should be noted that "facing obliquely upward" is the orientation of the electric charging device when it is normally placed and used.

[0047] The housing 1 includes a front panel 11, and the electric inflatable device also includes an inner baffle plate 20. The front panel 11 is provided with a plurality of long strip air inlets 112, and the inner baffle plate 20 is provided with a plurality of vents 201. The inner baffle plate 20 is installed on the inner side of the front panel 11 and blocks the air inlet 112. The air inlet 112 provides a passage for air to enter, and the vents 201 on the inner baffle plate 20 can disperse and guide the air flow. The inner baffle plate 20 blocks the air inlet 112 to prevent impurities and other foreign objects from entering the interior of the inflatable device, and can effectively prevent pollutants such as dust, debris, and insects from entering and affecting the normal operation of the electric inflatable device, thereby improving the reliability and service life of the device. By blocking the air inlet 112, the inner baffle plate 20 provides an extra layer of protection to prevent the user from contacting the air inlet 112 and internal mechanical components during operation, thereby increasing the safety of the user. At the same time, the inner shielding plate 20 can also shield the long strip air inlet 112 to prevent the internal structure from being exposed through the air inlet 112. Specifically, the inner shielding plate 20 can be installed on the inner side of the front plate 11 by means of a buckle or other structure.

[0048] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. An electric inflator, characterized in that: It includes a casing, an inner body mounting frame, an inflation mechanism and a battery assembly; the inner body mounting frame is installed in the casing, and an inflation mounting cavity and a battery mounting cavity are provided on the inner body mounting frame; the inflation mechanism is installed in the inflation mounting cavity, and the battery assembly is installed in the battery mounting cavity; the battery assembly supplies power to the electric inflation device, and the inflation mechanism is used for inflation.

2. The electric inflator according to claim 1, characterized in that: The electric inflation device also includes an inflation tube and a power cord, wherein the inflation tube is connected to the inflation mechanism, and the power cord is electrically connected to the inflation mechanism and / or the battery assembly; a storage cavity with an opening is provided on the inner main body mounting frame, and the inflation tube and the power cord are led out through the storage cavity, and the inflation tube and the power cord can be stored in the storage cavity.

3. The electric inflator according to claim 2, characterized in that: The electric inflator further comprises an inner bottom plate, and the inner bottom plate cover is arranged on the inflatable mounting cavity.

4. The electric inflator according to claim 3, characterized in that: The inner bottom plate is provided with two first mounting posts, and the inflation tube and the power line are respectively mounted on the corresponding first mounting posts.

5. The electric inflator according to claim 4, characterized in that: A first mounting socket is provided on the two first mounting columns, and the inflation tube and the power cord are respectively clamped on the first mounting socket; a first limiting ring is installed on the inflation tube, and a positioning groove is provided at the first mounting socket of the first mounting column on which the inflation tube is installed, and the first limiting ring is installed in the positioning groove; a first clamping connector is provided on the power cord, and the first clamping connector is clamped on the first mounting socket of the first mounting column on which the power cord is installed.

6. The electric inflator according to claim 2, characterized in that: The inflation mechanism includes a shell, a motor, a piston and a piston bracket; the motor and the piston bracket are installed in the shell, the piston is telescopically installed in the piston bracket and is transmission-connected to the motor, and the motor can drive the piston to reciprocate and telescope in the piston bracket.

7. The electric inflator according to claim 6, characterized in that: The inflation mechanism further comprises a piston outlet seat and a pipe connector, wherein the piston outlet seat is mounted on an end of the piston bracket away from the piston and is connected to the piston bracket, and the piston outlet seat is connected to the inflation pipe through the pipe connector; The piston outlet seat is provided with two oppositely disposed hook parts, and the pipe connector is provided with two oppositely disposed hook grooves, and the two hook parts are respectively hooked in the two hook grooves.

8. The electric inflator according to any one of claims 1 to 7, characterized in that: The electric inflatable device also includes a circuit board. A circuit board installation cavity is formed between the housing and the inner body mounting frame, and the circuit board is installed in the circuit board installation cavity.

9. The electric inflator according to claim 8, characterized in that: The electric inflatable device also includes an inner mounting seat and a display screen, wherein the inner mounting seat is mounted in the circuit board mounting cavity; the inner mounting seat has a first inclined surface facing obliquely upward, the circuit board is mounted on the first inclined surface, the display screen is mounted on the circuit board, and the casing is provided with a second inclined surface facing obliquely upward, a docking opening is provided on the second inclined surface, and the display screen docks with the docking opening.

10. The electric inflator according to any one of claims 1 to 7, characterized in that: The housing includes a front plate, and the electric inflation device also includes an inner shielding plate. The front plate is provided with a plurality of long air inlets, and the inner shielding plate is provided with a plurality of air vents. The inner shielding plate is installed on the inner side surface of the front plate and shields the air inlets.

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