A tent pump

Abstract

The utility model discloses a tent pump, including by main casing and secondary casing sealed connection constitution's casing. Be provided with the independent inflation device and exhaust device in the casing. The inflation device includes the inflation port, air pump, charging battery and inflation button switch. The exhaust device includes the exhaust port, suction port, set up the exhaust fan and be used for the screw cap of sealed exhaust port between. The utility model integrates the inflation and the active exhaust function in an organic whole, and through the exhaust device can forcibly, fastly exhaust the air in the inflation element for constituting the tent forming, thoroughly solved the traditional natural deflation slow, gas residual many problem, exhaust process can be the core component forced heat dissipation, and the screw cap structure has guaranteed the leakproofness under the non -use state. The product has the advantages of compact structure, perfect function, exhaust efficient and reliable use.

Description

Technical Field

[0001] This utility model relates to the field of air pump technology, and in particular to a tent pump. Background Technology

[0002] An air pump is a common device that uses the rotation of a motor to create a pressure difference, inflating the item to be inflated. With the increasing popularity of outdoor activities, air pumps are increasingly used in camping equipment such as tents and air mattresses, helping users quickly and conveniently inflate items in the wild. Traditional air pumps are mostly external, requiring users to carry them and connect them to the inflation port of the item when needed. This external design is not only inconvenient to carry but also prone to being forgotten or lost, affecting the user experience.

[0003] To address the aforementioned issues, existing technologies have introduced structural designs that integrate the air pump within the device to be inflated. For example, utility model patent CN222950021U discloses an integrated air pump structure, in which an inner and outer air film are fitted around the outside of the air pump, with the battery holder extending from the air film opening and secured by a pressure cap to maintain airtightness. While this structure achieves some degree of integration of the air pump, it still suffers from the following shortcomings: First, the assembly structure of the air film and the air pump is complex, making installation and replacement of the air pump difficult; second, the sealing reliability at the air film interface depends on the tightness of the pressure cap, and after long-term use, loosening can easily lead to gas leakage, affecting inflation efficiency; furthermore, this structure focuses solely on the inflation function and lacks an active venting device, requiring natural venting or manual opening of the vent port for deflation, resulting in extremely slow deflation speed. This leads to a large amount of residual air inside the tent, making it inconvenient to fold up and affecting storage and portability.

[0004] Another invention patent application, CN118843732A, discloses an inflatable camping component in which a pump module is embedded in the inflation element and arranged in a straight line with the inflatable device to simplify the inflation process. Although this design integrates the pump module with the support structure, the pump module itself only has an inflation function and lacks an effective active deflation mechanism. During deflation, users still need to rely on passive deflation methods, such as opening the vent to release air naturally. This method is inefficient and cannot quickly remove air from the tent, especially for large tents. Incomplete deflation will occupy a lot of storage space and increase the difficulty of subsequent maintenance. In summary, the existing built-in air pump structures still need improvement in terms of heat dissipation performance, structural rationality, and ease of installation. In particular, they generally lack integrated active deflation functions, resulting in low deflation efficiency and a poor user experience. Therefore, there is an urgent need for a new type of tent pump that can integrate a high-efficiency deflation device while achieving built-in inflation functionality, significantly improving deflation speed, and possessing good heat dissipation, a simple and stable structure, and easy installation and maintenance, thereby improving its operational stability and service life. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of existing built-in air pumps, such as single function, low exhaust efficiency and poor heat dissipation performance, and to provide a tent pump that has both high-efficiency inflation and active exhaust functions, compact structure and easy maintenance.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a tent pump, including a housing, wherein an independent inflation device and an exhaust device are provided inside the housing; the inflation device includes: an inflation port provided on the main housing; an air pump provided inside the main housing, wherein the air outlet of the air pump is connected to the inflation port; a rechargeable battery provided inside the main housing; and an inflation button switch connected between the rechargeable battery and the air pump. The exhaust device includes: an exhaust port disposed on one side surface of the housing; an intake port disposed on the opposite side surface of the housing; and an exhaust fan assembly disposed between the exhaust port and the intake port for forced exhaust of air from the inflation element (21); And a detachable cap disposed on the exhaust port for sealing the exhaust port when not in the exhaust state.

[0007] Furthermore, the exhaust fan assembly includes: a mounting base consisting of an upper motor mounting base and a lower motor mounting base; a motor disposed within the mounting base; and a fan blade connected to the motor shaft, the motor shaft passing through the bottom surface of the lower motor mounting base and connected to the fan blade.

[0008] Furthermore, the upper mounting base of the motor is equipped with an external connecting base, and the bottom surface of the external connecting base is provided with a fastening block. The fastening block passes through the inner bottom surface of the lower mounting base of the motor and is fitted with a decorative cover.

[0009] Furthermore, the decorative cover has a snap opening on its surface, and the side wall of the snap opening has a recess, and the snap block is snapped onto the snap opening.

[0010] Furthermore, the upper end of the motor mounting base is provided with an external thread, and the inner wall of the cap is provided with an internal thread. The cap is connected to the motor mounting base by the thread.

[0011] Furthermore, the upper end of the motor mounting base is also provided with a switch for controlling the exhaust fan, the switch is equipped with a switch positioning component, and the switch positioning component is placed on the motor mounting base.

[0012] Furthermore, the exhaust port is fitted with a first seat, and the screw cap is located within the first seat.

[0013] Furthermore, the inner wall of the exhaust port is provided with a locking block to restrict the downward position of the cap.

[0014] Furthermore, the housing is divided into a main housing and a secondary housing, which are welded together by ultrasonic welding; the main housing is also provided with a third base for installing a rechargeable battery, and the rechargeable battery is also provided with a USB interface.

[0015] Furthermore, the bottom surface of the main housing and the bottom surface of the secondary housing are respectively provided with support columns for enhancing the exhaust device to discharge air from the inflation element.

[0016] The beneficial effects of this utility model are as follows: I. This structure integrates the inflation device and the deflation device into the same housing, which not only enables rapid inflation, but also allows for the forced expulsion of air from the inflation element by activating the deflation device, greatly improving the deflation efficiency and solving the problems of slow natural deflation speed and excessive gas residue in traditional systems.

[0017] 2. The screw cap is connected to the mounting base on the motor via a threaded structure, which can reliably seal the exhaust port when not in the exhaust state, preventing dust and moisture from entering.

[0018] 3. The inflation and deflation functions are equipped with independent control switches, and users can select the working mode according to their needs. The operation is simple and intuitive. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings.

[0020] Figure 1This is a schematic diagram of the structure of the first embodiment of the present invention.

[0021] Figure 2 for Figure 1 A schematic diagram of its decomposed structure.

[0022] Figure 3 for Figure 1 A schematic diagram of the bottom structure.

[0023] Figure 4 for Figure 1 A schematic diagram of its decomposed structure.

[0024] Figure 5 This is a cross-sectional structural diagram of the first embodiment of the present invention.

[0025] Figure 6 A schematic diagram showing the connection structure of the rechargeable battery, motor, air pump, switch, and inflation push-button switch.

[0026] Figure 7 This is the second embodiment of the present invention.

[0027] Figure 8 This is a schematic diagram of the assembly structure of the present invention and the inflatable element.

[0028] Explanation of reference numerals in the attached drawings: Main housing 1, inflation port 101, secondary housing 2, exhaust port 201, locking block 202, air intake port 203, first seat 3, screw cap 4, internal thread 401, second seat 5, air intake gap 6, upper motor mounting base 7, external thread 701, switch 8, switch positioning part 9, decorative cover 10, recess 1001, fan blade 11, external connecting seat 12, fastener block 1201, lower motor mounting base 13, rechargeable battery 14, motor 15, air pump 16, inflation button switch 17, USB interface 18, third seat 19, support column 20, inflation element 21, partial welding 22. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] Example 1 is as follows: (See below) Figures 1 to 6 This embodiment provides a tent pump that integrates inflation and active deflation functions.

[0031] Shell Structure: The shell of the tent pump adopts a split design, including a main shell 1 and a secondary shell 2. The joint edges of the main shell 1 and the secondary shell 2 are fused together by ultrasonic welding to form a complete and sealed accommodating space. This connection method ensures the overall structural strength and excellent sealing performance of the shell, effectively preventing the intrusion of external moisture and dust, and adapting to the complex outdoor environment. The entire tent pump is placed inside the film used to form the tent. Specifically, the tent pump is placed inside the inflatable element 21 that supports the tent formation. In this embodiment, the inflatable element 21 is a tubular support member sealed at both ends, and its manufacturing material is TPU film. The inflatable element 21 is fixed to the tent pump by ultrasonic welding. Figure 8 As shown, the inflatable element 21 is provided with through holes corresponding to the first seat 3, the second seat 5, and the third seat 19, which can be passed through and extended to the outside. The purpose is to allow the first seat 3, the second seat 5, and the third seat 19 to protrude out of the inflatable element 21 for corresponding operations. Specifically, the TPU film around the first seat 3, the second seat 5, and the third seat 19 is partially welded to the tent pump 22 to fix the tent pump to the inflatable element 21.

[0032] The inflation device is integrated within the main housing 1 and is primarily used to inflate the inflatable elements 21 that form the tent. Its core components include: Inflation port 101: Located on one side wall of the main housing 1, it typically uses a standard universal air nozzle interface for connection to various devices to be inflated. A one-way valve (not shown in the figure) may be installed inside the inflation port to prevent backflow of gas.

[0033] Air pump 16: As the power source for inflation, the air pump 16 is fixedly installed inside the main housing 1 by means of shock-absorbing pads, slot structures, or welding. The air inlet of the air pump 16 is connected to the air inside the housing, and its outlet is sealed to the inflation port 101 through a flexible air pipe or a directly designed channel.

[0034] Rechargeable battery 14: It adopts a rechargeable lithium battery pack and is installed in a specially designed battery compartment inside the main housing 1, such as patent number 2024217398405. This should be clear to those skilled in the art and will not be described again in this specification.

[0035] Inflation button switch 17: This is a waterproof button switch, located on the outer wall of the main housing 1 in an easily accessible position. It is connected via internal wires between the output terminal of the rechargeable battery 14 and the power input terminal of the air pump 16 or the power input terminal of the motor 15. When the user needs to inflate the inflation element 21, pressing the inflation button switch 17 connects the circuit and starts the air pump 16 for inflation. Air enters through the air inlet gap 6 between the second housing 5 and the inflation button switch 17, reaching the air pump 16's inlet. The air pump 16 outputs a strong flow of gas, which is then discharged from the air outlet 101 into the inflation element 21. The second housing 5 extends beyond the inflation element 21. After inflation is complete, pressing the inflation button switch 17 again cuts off the power to the air pump 16, stopping its operation. The exhaust device is as follows: The exhaust device is mainly used for actively drawing out air (e.g., quickly expelling air from the inflation element 21), and also for forced heat dissipation during operation. This device is mainly located within the cavity formed by the secondary housing 2, and includes: an airflow channel: a straight air duct is formed by an exhaust port 201 on one side of the secondary housing 2 and an intake port 203 on the opposite side. The cap 4 is a sealing mechanism: an annular first seat 3 is embedded at the exhaust port 201, serving to reinforce the structure and guide the cap 4. The inner wall of the cap 4 is machined with internal threads 401. At the center of the exhaust port 201, a motor mounting seat 7 is provided, with external threads 701 that match the cap 4.

[0036] When the venting function is not needed, screw the cap 4 onto the motor mounting base 7 until the end face of the cap 4 is tightly fitted with the end face of the first base 3 or the edge of the vent 201, thereby achieving a reliable seal of the vent 201 and preventing foreign objects from entering.

[0037] To further prevent the cap 4 from accidentally falling off, a retaining block 202 is provided on the inner wall of the vent 201. When the cap 4 is screwed open to a certain position, its edge will be blocked by the retaining block 202, preventing it from falling off further.

[0038] Exhaust fan assembly: The exhaust fan assembly is the core of active exhaust, and its assembly structure is as follows: Mounting bracket: The upper motor mounting bracket 7 and the lower motor mounting bracket 13 are connected by snaps or screws to form a sturdy chamber for fixing the motor 15.

[0039] Motor 15: Typically a small DC motor, it is tightly fixed in the cavity formed by the upper motor mounting base 7 and the lower motor mounting base 13. The shaft of the motor 15 passes through the bottom surface of the lower motor mounting base 13.

[0040] Fan blade 11: This is a centrifugal or axial flow fan blade, whose hub is interference-fitted with the shaft of motor 15 or fixed by fixing screws. Fan blade 11 is located below the motor mounting base 13, i.e., on the side facing the air intake 203. When motor 15 starts, it drives fan blade 11 to rotate at high speed, drawing in air from exhaust port 201 and forming a forced airflow to be discharged from air intake port 203.

[0041] Fixing and Decorative Structure: Above the motor mounting base 7, an external connecting base 12 is installed. At least two latches 1201 extend downwards from the bottom surface of this external connecting base 12. These latches 1201 pass through corresponding through holes on the lower motor mounting base 13 and engage with latching openings on a decorative cover 10. The sidewalls of the latching openings have recesses 1001 that match the shape of the latches 1201, achieving a reliable snap-fit ​​fixation. This structure not only makes the appearance cleaner but, more importantly, locks the entire exhaust fan assembly from below, preventing it from loosening upwards and facilitating disassembly and maintenance.

[0042] The exhaust control switch is as follows: A switch 8 is installed on the upper side of the motor mounting base 7 to control the start and stop of the exhaust fan. The switch 8 is precisely positioned and fixed by a switch positioning piece 9.

[0043] The circuit system is as follows: (See attached image) Figure 6 The rechargeable battery 14 serves as the main power source. One of its outputs is connected to the air pump 16 via the inflation button switch 17, forming an inflation circuit. The other output is connected to the motor 15 via switch 8, forming an deflation circuit. The two circuits are independent of each other, allowing the user to control the inflation and deflation functions separately without interference.

[0044] The working principle and usage process of this utility model are as follows: The inflation procedure is as follows: Confirm that the cap 4 is tightened and the exhaust port 201 is sealed. Press the inflation button switch 17 to start the air pump 16. External air enters from the air inlet gap 6 and is pressurized by the air pump 16 before being filled into the inflation element 21 through the inflation port 101 until the required air pressure is reached.

[0045] The deflation process is as follows: to quickly deflate the inflatable element 21 used to support the tent's formation: when the cap 4 is turned off counterclockwise and the switch 8 is pressed, the motor 15 is powered on. The motor 15 drives the fan blade 11 to rotate at high speed. The air inside the inflatable element 21 is forcefully drawn in from the air intake 203, accelerated through the air duct, and then concentratedly discharged from the exhaust port 201, thus achieving rapid and active deflation of the inflatable element 21 and solving the problem of slow natural deflation speed.

[0046] For heat dissipation of the equipment itself: After a long period of inflation operation, the screw cap 4 can be unscrewed and the exhaust fan can be turned on to force airflow through the inside of the housing, which can effectively remove the heat accumulated in the air pump 16 and the housing, prevent overheating protection or performance degradation, and extend the service life of the equipment.

[0047] Example 2 is as follows: In another embodiment of this utility model, the sealing method between the screw cap 4 and the exhaust port 201 can be replaced by a snap-on seal. That is, a sealing ring is provided at the edge of the exhaust port 201, and a hook is provided at the corresponding position on the inner side of the screw cap 4, so that sealing and opening are achieved by pressing. Other structures are the same as in Example 1. For the purposes of this application, in order to facilitate the replacement of the rechargeable battery 14, such as Figure 7 As shown, a third housing 19 is provided inside the main housing 1, serving as a battery compartment for the rechargeable battery 14. The battery compartment has positive and negative contacts that make contact with the electrodes of the rechargeable battery 14. This embodiment is advantageous for outdoor use, where if the tent pump runs out of power, it can be reused by replacing the rechargeable battery 14. Furthermore, the rechargeable battery 14 is also provided with a USB interface 18, which can reverse-power electrical devices.

[0048] It should be noted that during the initial venting process, due to the high air pressure and large amount of air inside the inflation element 21, the TPU film on the inflation element 21 corresponding to the air intake 203 will not adhere to the air intake 203. However, when the air inside the inflation element 21 is almost completely vented, the air volume inside the inflation element 21 becomes very small, and the pressure inside the inflation element 21 becomes low. At this point, the TPU film on the inflation element 21 corresponding to the air intake 203 may adhere to the air intake 203, resulting in incomplete venting of the air inside the inflation element 21. Figure 8 As shown, in order to prevent the TPU film of the inflation element 21 from adhering to the air inlet 203 when the exhaust device forces air out of the inflatable element 21, multiple support columns 20 are respectively provided on the bottom surface of the main housing 1 and the bottom surface of the secondary housing 2 to enhance the exhaust of air from the inflation element 21 by the exhaust device. When the exhaust device is working, due to the action of the support columns 20, the TPU film corresponding to the bottom surface of the main housing 1 will not adhere to the bottom surface of the main housing 1. Because of the action of the support columns 20, the air in the inflation element 21 can more easily flow smoothly through the gap between the support columns 20. Similarly, the support columns 20 provided around the air inlet 203 effectively prevent the TPU film corresponding to the air inlet 203 from adhering to the air inlet 203 during the exhaust process, thereby preventing the air in the inflation element 21 from being completely exhausted.

Claims

1. A tent pump comprising a housing, characterised in that: The housing is equipped with independent inflation and deflation devices. The inflation device includes: an inflation port (101) disposed on the main housing (1); an air pump (16) disposed inside the main housing (1), the air outlet of the air pump (16) being connected to the inflation port (101); a rechargeable battery (14) disposed inside the main housing (1); and an inflation button switch (17) connected between the rechargeable battery (14) and the air pump (16). The exhaust device includes: an exhaust port (201) disposed on one side surface of the housing; an air intake port (203) disposed on the opposite side surface of the housing; and an exhaust fan assembly disposed between the exhaust port (201) and the air intake port (203) for forced exhaust of air from the air filling element (21); And a detachable cap (4) is provided on the exhaust port (201) for sealing the exhaust port (201) in the non-exhaust state.

2. The tent pump of claim 1, wherein: The exhaust fan assembly includes: a mounting base consisting of an upper motor mounting base (7) and a lower motor mounting base (13); a motor (15) disposed in the mounting base; and a fan blade (11) connected to the motor shaft, wherein the motor shaft (15) passes through the bottom surface of the lower motor mounting base (13) and is connected to the fan blade (11).

3. The tent pump of claim 2, wherein: The upper mounting base (7) of the motor is equipped with an external connecting base (12). The bottom surface of the external connecting base (12) is provided with a fastener (1201). The fastener (1201) passes through the inner bottom surface of the lower mounting base (13) of the motor and is fastened with a decorative cover (10).

4. The tent pump of claim 3, wherein: The decorative cover (10) has a snap opening on its surface, and the side wall of the snap opening has a recess (1001). The snap block (1201) is snapped onto the snap opening.

5. The tent pump of claim 2, wherein: The upper end of the motor mounting base (7) is provided with an external thread (701), and the inner wall of the cap (4) is provided with an internal thread (401). The cap (4) is connected to the motor mounting base (7) by the thread.

6. The tent pump of claim 2, wherein: The upper end of the motor mounting base (7) is also provided with a switch (8) for controlling the exhaust fan. The switch (8) is equipped with a switch positioning component (9), which is placed on the motor mounting base (7).

7. The tent pump of claim 1, wherein: The exhaust port (201) is fitted with a first seat (3), and the screw cap (4) is located inside the first seat (3).

8. The tent pump of claim 1, wherein: The inner wall of the exhaust port (201) is provided with a locking block (202) to restrict the downward position of the cap (4).

9. The tent pump of claim 1, wherein: The shell is divided into a main shell (1) and a secondary shell (2), which are welded together by ultrasonic welding. The main housing (1) is also provided with a third seat (19) for installing a rechargeable battery (14), and the rechargeable battery (14) is also provided with a USB interface (18).

10. The tent pump of claim 9, wherein: The bottom surface of the main housing (1) and the bottom surface of the secondary housing (2) are respectively provided with support columns (20) for strengthening the exhaust device to discharge air from the inflation element (21).

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