An inflator

Abstract

The utility model belongs to the technical field of inflating equipment, especially a kind of inflator, including front cover, protective shell and electric pump.The utility model controls the operation mode of electric pump and air flow path by the rotation direction of knob.When knob rotates left, knob drives inner shell to move left by the rotation of driving disc and eccentric column, and when inner shell moves left, sealing plug is jolted by triangular support and limit ring, and when sealing plug is ejected from protective shell side end, the side air keeps flowing, and electric pump is pumping air out at this time.The same is true in reverse, if knob rotates right, then protective shell right side air flows, and left side keeps unchanged by the stretching of spring, still keeps closed state, and electric pump inflates air cushion at this time.When knob rotates to middle position, both sides sealing plug keep against protective shell side end, and both sides are blocked at the same time.Battery as the power supply of electric pump can be charged after being pulled out by pulling buckle.

Description

Technical Field

[0001] This utility model relates to the field of inflation equipment technology, specifically an inflation device. Background Technology

[0002] Inflatable devices are convenient and practical tools in modern life, mainly used to provide quick inflation or deflation functions for foldable items such as air mattresses and swimming pools.

[0003] Existing technologies have the following shortcomings: Currently, air inflators on the market are mainly divided into two mainstream types: plug-in and portable power supply. Air inflators using portable power supply typically integrate a rechargeable battery as their power source. While this design eliminates reliance on a fixed power source, it presents some inconveniences in practical use. Because these air inflators often need to be used with air mattresses, and the battery is fixedly installed internally, the mobility of the entire system is limited. Specifically, when the built-in battery needs to be charged, the user must connect the charging cable to the air inflator fixed to the mattress. This design not only increases the cumbersomeness of the charging process but also affects the overall portability of the product. Utility Model Content

[0004] To address the inconvenience of charging in existing technologies, this invention provides an inflation device that solves the problem of poor overall portability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inflation device, including a front cover and a protective shell, the protective shell being disposed on one side of the front cover, the front cover having multiple through holes for gas to enter and exit, the protective shell having through holes at both ends for gas to enter and exit, an electric pump for inflation and deflation being disposed inside the protective shell, an inner shell being disposed outside the electric pump, a valve being disposed at one of the through holes at both ends of the protective shell, the valve being controlled by the left and right movement of the inner shell, and a knob for controlling the left and right movement of the inner shell being disposed on the side end of the front cover;

[0006] A removable battery is also provided on the inside of the front cover.

[0007] As a preferred technical solution of this utility model, a spring is sleeved on the top rod, and a detachable limiting ring is sleeved at the end of the top rod. The other end of the spring abuts against the inner wall of the protective shell. A slide bar is provided on the outer wall of the inner shell along the length direction, and two slide bars are arranged symmetrically on the outer wall of the inner shell.

[0008] As a preferred technical solution of this utility model, a sealing ring is provided on the side of the valve. When the valve is closed, the sealing ring is tightly attached to the through hole three. A push rod is provided on one side of the valve. One end of the push rod passes through the through hole three and extends to the end of the inner shell.

[0009] As a preferred technical solution of this utility model, triangular supports are provided at both ends of the inner shell. When the inner shell moves left and right, the center point of the triangular support touches one end of the top rod and pushes the top rod to one end, thereby opening the valve.

[0010] As a preferred embodiment of this utility model, the valve switch structures on the three through holes at both ends of the protective shell are identical.

[0011] As a preferred technical solution of this utility model, the support frame has an opening structure on its side and a hollow docking end with a waist hole structure is provided on the inner shell, with one end of the docking end moving through the opening structure on the support frame.

[0012] As a preferred technical solution of this utility model, a drive disk is rotatably arranged on the inner side of the front cover via a bracket. The drive disk and the knob are coaxially connected via a shaft. An eccentric column is eccentrically arranged on the side of the drive disk, and the eccentric column is inserted into the mating end during assembly.

[0013] As a preferred technical solution of this utility model, a sliding cover is provided at three through holes at both ends of the protective shell. The sliding cover has a hollow structure and is detachably assembled with the protective shell.

[0014] The inner wall of the sliding cover is provided with a locking block, and slide rails adapted to the locking block are provided at both ends of the protective shell. That is, the locking block and the slide rail are slidably installed. A pressable stop structure is also provided at the end of the protective shell.

[0015] As a preferred technical solution of this utility model, a battery compartment is also provided on one side of the front cover. One end of the battery compartment is an open structure to facilitate the installation and removal of the battery. The inner wall of the battery compartment is provided with a locking structure, and the outer shell of the battery is provided with a slot that matches the locking.

[0016] The battery is also equipped with a foldable buckle. The buckle is rotatably mounted to the battery housing via a shaft. When folded, the buckle can be parallel to the end face of the battery housing. A circuit board is provided at the bottom of the battery compartment. The circuit board is powered by the battery and also powers the electric pump.

[0017] A baffle structure is provided on the side of the front cover at the location corresponding to the through hole.

[0018] As a preferred embodiment of this utility model, the edge of the front cover is provided with a protruding portion, and the protruding portion has several through holes.

[0019] Compared with the prior art, the present invention provides an inflation device with the following advantages:

[0020] An inflation device controls the operation of an electric pump and the airflow path by rotating a knob. When the knob is rotated to the left, the knob drives the inner shell to move to the left via the rotation of the drive disc and eccentric column. As the inner shell moves to the left, it pushes the sealing plug through the triangular bracket and limiting ring. When the sealing plug is pushed out of the protective shell's side, air remains flowing on that side, and the electric pump draws air outwards. Conversely, if the knob is rotated to the right, air flows on the right side of the protective shell, while the left side remains closed due to spring tension, and the electric pump inflates the inflation pad. When the knob is rotated to the middle position, both sealing plugs remain pressed against the sides of the protective shell, sealing both sides simultaneously. The battery, which powers the electric pump, can be pulled out via a pull tab for charging and can be flexibly installed using a locking mechanism.

[0021] Through the aforementioned setup and processes, and by adopting a split battery design, the power module can be independently disassembled, significantly improving the device's portability. Simultaneously, a spring-linked mechanism combined with a triangular support structure enables precise control of airflow on both sides. Regarding airflow optimization, the system upgrades the original bidirectional airflow channel to a three-way split design, significantly improving airflow efficiency. The through-hole structure added to the outer edge of the front cover effectively enhances the overall installation stability by increasing the contact area with the adhesive. Particularly noteworthy is the right-angle baffle in the first through-hole of the front cover, which employs a dual-function design: it both improves airflow through optimized channel shape and forms a physical barrier to prevent foreign objects from entering and clogging the vents. This integrated design ensures efficient inflation while extending the device's lifespan. The entire system, through a modular design approach, organically integrates energy management, airflow control, and anti-clogging protection functions, enhancing both user experience and market competitiveness. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the disassembled side sliding cover of this utility model.

[0025] Figure 4 This is a schematic diagram of the internal structure of the protective shell of this utility model;

[0026] Figure 5 This is a schematic diagram of the sealing plug and the outer side structure of the inner shell of this utility model;

[0027] Figure 6 This is a schematic diagram of the connection position of the sealing plug, push rod, and spring of this utility model;

[0028] Figure 7This is a schematic diagram showing the location and structure of the through hole in this utility model;

[0029] Figure 8 This is a schematic diagram of the inner structure of the through hole of this utility model;

[0030] Figure 9 This is a schematic diagram of the overall structure of the valve of this utility model;

[0031] Figure 10 This is a schematic diagram of the three opening positions of the through hole in this utility model.

[0032] In the diagram: 1. Front cover; 2. Protective shell; 3. Battery; 4. Pull buckle; 5. Charging port; 6. Knob; 7. Through hole one; 8. Through hole two; 9. Battery compartment; 10. Lock; 11. Circuit board; 12. Sliding cover; 13. Locking block; 14. Slide rail; 15. Stop block; 16. Drive plate; 17. Eccentric column; 18. Inner shell; 19. Triangular bracket; 20. Limiting ring; 21. Top rod; 22. Spring; 23. Sealing ring; 24. Support bracket; 25. Electric pump; 26. Valve; 27. Through hole three; 28. Sliding strip; 29. ​​Connecting end. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1 to 9 In this embodiment: an inflation device includes a front cover 1 and a protective shell 2. The protective shell 2 is disposed on one side of the front cover 1. The front cover 1 has multiple through holes 7 for gas to enter and exit. The protective shell 2 has through holes 27 at both ends for gas to enter and exit. An electric pump 25 for inflation and deflation is disposed inside the protective shell 2. In an inflation pad or air bed, the protective shell 2 and the electric pump 25 are located in the inflation pad or air bed. The side of the front cover 1 is sealed to the mounting position of the inflation pad or air bed. During the inflation and deflation process, the through holes 7 on the front cover 1 can form independent gas channels with the through holes 27 of the protective shell 2.

[0035] like Figure 4 As shown, a support frame 24 is provided inside the protective shell 2, and an inner shell 18 is provided outside the electric pump 25. Slide strips 28 are provided along the length of the outer wall of the inner shell 18. Two slide strips 28 are symmetrically arranged on the outer wall of the inner shell 18. The slide strips 28 contact the two side edges of the support frame 24, and their function is to allow the inner shell 18 to slide left and right along the support frame 24 (left and right directions are referenced). Figure 4 (as shown in the image).

[0036] A valve 26 is installed at the through holes 27 at both ends of the protective shell 2. The valve 26 can be controlled by the left and right movement of the inner shell 18. The specific structure is as follows: a push rod 21 is installed on one side of the valve 26. One end of the push rod 21 passes through the through hole 27 and extends to the end of the inner shell 18. A spring 22 is sleeved on the push rod 21, and a detachable limiting ring 20 is sleeved at the end of the push rod 21 for limiting and removing the spring 22. The other end of the spring 22 abuts against the inner wall of the protective shell 2. The specific structure is as follows: the diameter of the spring 22 is larger than the diameter of the through hole 27. The valve 26 covers the outside of the through hole 27. When the push rod 21 is squeezed, the spring 22 is compressed, and the valve 26 exits the closure of the through hole 27. Gas enters from the through hole 27 to complete the inflation. After inflation is completed, the pressure on the push rod 21 is released, and the force of the spring 22 causes the push rod 21 and the valve 26 to return to their original positions.

[0037] To ensure the airtightness of valve 26 and through hole 3 27, a sealing ring 23 is fitted on the side of valve 26. When valve 26 is closed, the sealing ring 23 is tightly attached to through hole 3 27 to achieve a sealing effect.

[0038] To ensure that the left and right movement of the inner shell 18 can drive the push rod 21, triangular brackets 19 are set at both ends of the inner shell 18. When the inner shell 18 moves left and right, the center point of the triangular bracket 19 touches one end of the push rod 21 and pushes the push rod 21 to one end, thereby opening the valve 26.

[0039] The valves 26 on the through holes 27 at both ends of the protective shell 2 have the same switching structure. When the inner shell 18 moves to one end, the triangular bracket 19 at the other end withdraws from contact with the top rod 21. That is, only one set of valves 26 remains open during inflation and deflation.

[0040] To control the left and right movement of the inner shell 18, a knob 6 is installed on the front cover 1 via a shaft. The movement of the inner shell 18 is achieved by rotating the knob 6. Specifically, a through-hole structure is opened on the side of the support frame 24, and a hollow docking end 29 with a waist hole structure is provided on the inner shell 18. One end of the docking end 29 moves through the through-hole structure on the support frame 24.

[0041] A drive disk 16 is rotatably mounted on the inside of the front cover 1 via a bracket. The drive disk 16 is coaxially connected to the knob 6 via a shaft. An eccentric post 17 is eccentrically mounted on the side of the drive disk 16. The eccentric post 17 is inserted into the mating end 29 during assembly.

[0042] When the knob 6 is rotated, the drive disk 16 drives the docking end 29 and the inner shell 18 to move left and right through the eccentric column 17.

[0043] In the inflation device of this application, the knob 6 has a three-position structure: left and right are for inflation and deflation. When the indicator end of the knob 6 is in the center, the valves 26 at both ends are closed, and gas cannot enter or exit. When the knob 6 drives the eccentric column 17 to rotate 90 degrees left and right, it drives the inner shell 18 to move left and right. In this state, the eccentric column 17 and the docking end 29 remain at a dead point position, and the inner shell 18 will not be reset by the spring 22 when the knob 6 is released.

[0044] A sliding cover 12 is provided at the through holes 27 at both ends of the protective shell 2. The sliding cover 12 has a hollow structure and is detachably assembled with the protective shell 2. Specifically, a locking block 13 is provided on the inner wall of the sliding cover 12, and slide rails 14 adapted to the locking block 13 are provided at both ends of the protective shell 2. That is, the sliding cover 12 is slidably installed by the locking block 13 and the slide rail 14. In order to prevent the sliding cover 12 from accidentally falling off, a pressable stop block 15 is also provided at the end of the protective shell 2. After the sliding cover 12 is assembled, the stop block 15 protrudes from the end face of the protective shell 2 to block and limit the sliding cover 12. The sliding cover 12 can be removed by pressing the stop block 15.

[0045] The sliding cover 12 serves to prevent foreign objects from blocking the air inlet and outlet of the through hole 3 27, and also to prevent the fabric of the air mattress or air pad from sticking to the through hole 3 27 and causing inability to inflate or deflate.

[0046] A battery compartment 9 is also provided on one side of the front cover 1. The battery compartment 9 contains the battery 3. One end of the battery compartment 9 is open to facilitate the installation and removal of the battery 3. The inner wall of the battery compartment 9 is provided with a latch 10 structure. The outer shell of the battery 3 is provided with a slot that matches the latch 10. After the battery 3 is inserted, it is fixed by the latch 10 to prevent the battery 3 from falling out easily.

[0047] like Figure 1 As shown, a foldable latch 4 is also provided on the battery 3. The latch 4 is rotatably mounted to the outer shell of the battery 3 via a shaft. When folded, the latch 4 can be parallel to the end face of the outer shell of the battery 3. The battery 3 can be pulled out through the latch 4. Compared with the existing technology that fixes the battery to the charging device, the detachable battery 3 is convenient to remove and charge. In addition, the battery 3 also has an external discharge charging port 5, which can be used as a battery for electrical devices such as mobile phones when necessary.

[0048] like Figure 8 As shown, a circuit board 11 is provided at the bottom of the battery compartment 9. The circuit board 11 is powered by the battery 3 and also powers the electric pump 25. When the knob 6 is rotated, it triggers an electrical signal, and the valve 26 is opened while the electric pump 25 is working.

[0049] like Figure 8 As shown, a baffle structure is provided on the side of the front cover 1 corresponding to the through hole 7. This baffle structure can prevent foreign objects from being sucked into the interior of the inflation device during inflation without affecting the gas flow.

[0050] like Figure 7 As shown, a protruding portion is provided around the edge of the front cover 1. This portion is used for installation with the mounting position of the inflatable mat or air mattress. Compared with the prior art, this protruding portion has several through holes 8. The function of these through holes 8 is to allow the adhesive used for bonding after the protruding portion is attached to the mounting position of the mattress or air mattress to be injected into the through holes 8. The structure of the through holes 8 effectively increases the bonding space between the adhesive and the protruding portion, thereby preventing the adhesive from detaching from the protruding edge of the front cover 1. Compared with the prior art, the drilling method greatly improves the situation where the front cover 1 of the inflatable device detaches from the mounting position of the mattress or air mattress after a period of use, resulting in gaps.

[0051] In this embodiment, the operation mode of the electric pump 25 and the airflow path are controlled by the rotation direction of the knob 6. When the knob 6 is rotated to the left, the knob 6 drives the inner shell 18 to move to the left through the rotation of the drive disc 16 and the eccentric column 17. When the inner shell 18 moves to the left, the sealing plug 23 is pushed by the triangular bracket 19 and the limiting ring 20. When the sealing plug 23 is pushed out of the side end of the protective shell 2, the air on that side remains open, and the electric pump 25 draws air outward. Conversely, if the knob 6 is rotated to the right, the air on the right side of the protective shell 2 is open, while the left side remains closed due to the tension of the spring 22. At this time, the electric pump 25 inflates the air pad. When the knob 6 is rotated to the middle position, both sealing plugs 23 remain pressed against the side end of the protective shell 2, sealing both sides simultaneously.

[0052] Battery 3, which serves as the power source for electric pump 25, can be pulled out and charged by pulling on buckle 4, and can be flexibly assembled via latch 10.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An inflation device, comprising a front cover (1) and a protective shell (2), the protective shell (2) being disposed on one side of the front cover (1), characterized in that: The front cover (1) has multiple through holes (7) for gas to enter and exit. The protective shell (2) has through holes (27) at both ends for gas to enter and exit. An electric pump (25) for charging and discharging gas is installed inside the protective shell (2). An inner shell (18) is provided outside the electric pump (25). A valve (26) is provided at the through holes (27) at both ends of the protective shell (2). The valve (26) can be controlled by moving the inner shell (18) left and right. A knob (6) for controlling the left and right movement of the inner shell (18) is provided on the side of the front cover (1). A removable battery (3) is also provided on the inside of the front cover (1).

2. The inflation device according to claim 1, characterized in that: A spring (22) is fitted on the top rod (21), and a detachable limiting ring (20) is fitted at the end of the top rod (21). The other end of the spring (22) abuts against the inner wall of the protective shell (2). A slide bar (28) is provided along the length direction on the outer wall of the inner shell (18). Two slide bars (28) are symmetrically arranged on the outer wall of the inner shell (18).

3. The inflation device according to claim 1, characterized in that: The valve (26) is fitted with a sealing ring (23) on its side. When the valve (26) is closed, the sealing ring (23) is tightly attached to the through hole three (27). A push rod (21) is provided on one side of the valve (26). One end of the push rod (21) passes through the through hole three (27) and extends to the end of the inner shell (18).

4. An inflation device according to claim 3, characterized in that: The inner shell (18) is provided with triangular brackets (19) at both ends. When the inner shell (18) moves left and right, the center point of the triangular bracket (19) touches one end of the top rod (21) and pushes the top rod (21) to one end, thereby opening the valve (26).

5. An inflation device according to claim 4, characterized in that: The valves (26) on the three through holes (27) at both ends of the protective shell (2) have the same switching structure.

6. An inflation device according to claim 5, characterized in that: The support frame (24) has an opening structure on its side, and a hollow docking end (29) with a waist hole structure is provided on the inner shell (18). One end of the docking end (29) moves through the opening structure on the support frame (24).

7. An inflation device according to claim 1, characterized in that: A drive disc (16) is rotatably mounted on the inner side of the front cover (1) via a bracket. The drive disc (16) and the knob (6) are coaxially connected via a shaft. An eccentric column (17) is eccentrically mounted on the side of the drive disc (16). The eccentric column (17) is inserted into the mating end (29) during assembly.

8. An inflation device according to claim 6, characterized in that: A sliding cover (12) is provided at the three through holes (27) at both ends of the protective shell (2). The sliding cover (12) has a hollow structure and is detachably assembled with the protective shell (2). The inner wall of the sliding cover (12) is provided with a locking block (13), and the protective shell (2) is provided with slide rails (14) that are compatible with the locking block (13) at both ends. That is, the locking block (13) and the slide rail (14) are slidably installed. The end of the protective shell (2) is also provided with a pressable stop block (15) structure.

9. An inflation device according to claim 7, characterized in that: A battery compartment (9) is also provided on one side of the front cover (1). One end of the battery compartment (9) is an open structure, which makes it easy to install and remove the battery (3). The inner wall of the battery compartment (9) is provided with a latch (10) structure, and the outer shell of the battery (3) is provided with a slot that matches the latch (10). The battery (3) is also provided with a foldable buckle (4). The buckle (4) is rotatably installed with the outer shell of the battery (3) via a shaft. After the buckle (4) is folded, it can be parallel to the end face of the outer shell of the battery (3). The bottom of the battery compartment (9) is provided with a circuit board (11). The circuit board (11) is powered by the battery (3) and also powers the electric pump (25). A baffle structure is provided on the side of the front cover (1) corresponding to the through hole (7).

10. An inflation device according to any one of claims 1-9, characterized in that: The edge of the front cover (1) is provided with a protruding part, which has several through holes (8).

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