A tent or air mattress inflation valve having a pressure relief structure

Abstract

The utility model discloses a tent or air cushion inflation nozzle with pressure relief structure, including inflation pipe and the pressure relief structure of being located inside inflation pipe, the installation base of inflation pipe lower extreme outside is connected on tent or air cushion, the inflation pipe upper extreme outside is connected with the inflation nozzle cover, the inflation pipe inside is equipped with the long hole, the pressure relief structure can move up and down in the long hole, the upper and lower end one side of inflation pipe is equipped with respectively with the long hole intercommunication's first pressure relief port and second pressure relief port, the pressure relief mechanism blocks up the mouth of second pressure relief port and long hole intercommunication when inflating stage, when inflating to certain pressure, air enters the pressure relief mechanism rising by second pressure relief port, the pressure relief structure includes screw, spring and plug, the screw is connected on the long hole upper end, the plug is located long hole bottom, and the spring one end is covered in the plug top, and the other end abuts on the screw bottom.

Description

Technical Field

[0001] This utility model relates to the technical field of inflatable equipment, specifically to an inflator for a tent or air cushion with a pressure relief structure. Background Technology

[0002] Existing air nozzles require the main air tube to be unscrewed before air can be released; when depressurization is needed, a special pressure relief valve is required. This process is time-consuming, labor-intensive, costly, cumbersome, and prone to wear on the interfaces. Over time, the sealing performance deteriorates, affecting inflation efficiency and lifespan. Furthermore, traditional air nozzles lack automatic pressure relief, failing to release excessive pressure during inflation, hindering efficient and safe inflation operations.

[0003] Therefore, there is an urgent need for an inflation nozzle structure that integrates inflation, depressurization, and deflation functions, is easy to operate, and has a reliable seal. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a tent or air cushion inflation nozzle with a pressure relief structure, in view of the above-mentioned shortcomings of the prior art.

[0005] To achieve its purpose, this utility model adopts the following technical solution: An air nozzle for a tent or air cushion with a pressure relief structure includes an inflation tube and a pressure relief structure located inside the inflation tube. The lower end of the inflation tube is externally threaded to a mounting base on the tent or air cushion, and the upper end of the inflation tube is externally threaded to an air nozzle cap. The inflation tube has an elongated hole inside, and the pressure relief structure can move up and down inside the elongated hole. The upper and lower ends of the inflation tube are respectively provided with a first pressure relief port and a second pressure relief port that communicate with the elongated hole. During the inflation stage, the pressure relief mechanism blocks the port that communicates with the elongated hole from the second pressure relief port. When the inflation reaches a certain pressure, the air enters the pressure relief mechanism from the second pressure relief port and rises.

[0006] Preferably, the pressure relief structure includes a screw, a spring, and a plug. The screw is threaded to the upper end of the elongated hole, the plug is located at the bottom of the elongated hole, one end of the spring is sleeved on the top of the plug, and the other end abuts against the bottom of the screw.

[0007] Preferably, the bottom of the inflation tube is provided with an inwardly protruding arc-shaped plate, the arc-shaped plate is provided with air holes, the middle of the arc-shaped plate is provided with an insertion port, a connecting rod is inserted into the insertion port, and a flexible plug is fixed to one end of the connecting rod extending outward from the arc-shaped plate, the flexible plug being able to fit against the bottom end port of the inflation tube.

[0008] Preferably, the inflation nozzle further includes a base shell with an outer edge, on which a locking sleeve is threadedly connected.

[0009] The beneficial effects of this utility model are: (1) Automatic pressure relief protection for higher safety: This utility model uses the pressure relief structure (screw, spring, plug) in conjunction with the elongated hole, the first pressure relief port and the second pressure relief port. When the inflation pressure reaches the preset value, the gas can push the plug to compress the spring and rise, and then automatically discharge the excess gas through the first pressure relief port to achieve overpressure protection. This can not only prevent the equipment from being damaged by overpressure, but also prevent over-inflation from affecting the safety of use, and ensure that the inflation process is efficient and safe.

[0010] (2) Multifunctional integration, convenient and efficient operation: This utility model integrates inflation, automatic depressurization and convenient deflation functions into one, and all operations can be completed without disassembling the inflation nozzle, greatly simplifying the operation steps, improving the user experience, and avoiding the interface wear problem caused by frequent disassembly. Attached Figure Description

[0011] For ease of explanation, this utility model is described in detail below with reference to the specific embodiments and accompanying drawings.

[0012] Figure 1 This is a perspective view of the overall structure of this embodiment; Figure 2 This is a top view of the overall structure of this embodiment; Figure 3 for Figure 2 Sectional view at point AA.

[0013] In the picture: 1-Inflation tube; 101-Elongated hole; 102-First pressure relief port; 103-Second pressure relief port; 104-Arc-shaped plate; 1041-Air hole; 105-Insert port; 2-Air nozzle cover; 3-Screw; 4-Spring; 5-Plug; 6-Connecting rod; 7-Flexible plug; 8-Base shell; 9-Locking sleeve. Detailed Implementation

[0014] The following are specific embodiments of the present invention described in conjunction with the accompanying drawings, further illustrating the technical solution of the present invention. However, the present invention is not limited to these embodiments. Specific details such as particular configurations and components are provided in the following description merely to aid in a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0016] like Figure 1-3The image shown is an inflator nozzle for a tent or air cushion with a pressure relief structure provided in this embodiment. It mainly consists of an inflation tube 1, a pressure relief structure, a nozzle cover 2, an arc-shaped plate 104, a flexible plug 7, a base shell 8, and a locking sleeve 9. The assembly relationship of each component is as follows: The inflation tube 1 is a hollow tubular structure with an axially extending elongated hole 101 inside, which serves as a moving channel for the pressure relief structure. The lower end of the inflation tube 1 is detachably connected to the mounting base (not shown in the figure) on the tent or air mattress via threads, thus fixing the inflation nozzle to the inflatable product. The upper end of the inflation tube 1 is connected to the air nozzle cover 2 via threads. When not in use, the air nozzle cover 2 can seal the opening at the upper end of the inflation tube 1 to prevent dust and impurities from entering.

[0017] The inflation tube 1 has an elongated hole 101 inside, and the pressure relief structure can move up and down inside the elongated hole 101. The upper and lower ends of the inflation tube 1 are respectively provided with a first pressure relief port 102 and a second pressure relief port 103 communicating with the elongated hole 101. The pressure relief structure includes a screw 3, a spring 4 and a plug 5. The screw 3 has an external thread on its outer circumference, which is adapted to the internal thread at the upper end of the elongated hole 101, so that the top of the pressure relief structure is fixed inside the elongated hole 101. The plug 5 is a cylindrical structure that can slide up and down along the elongated hole 101 and is located at the bottom of the elongated hole 101. The spring 4 is sleeved on the protruding structure at the top of the plug 5. The upper end of the spring 4 abuts against the bottom of the screw 3 and the lower end abuts against the top of the plug 5. Through the elastic force of the spring 4, the plug 5 can be driven to return to the bottom of the elongated hole 101.

[0018] The inner wall of the bottom of the inflation tube 1 is integrally formed with an inwardly protruding arc plate 104, and multiple air holes 1041 are evenly distributed on the arc plate 104; a circular insertion port 105 is opened in the center of the arc plate 104, and a connecting rod 6 is inserted into the insertion port 105. One end of the connecting rod 6 is located inside the inflation tube 1, and the other end extends out of the arc plate 104 and is fixedly connected to the flexible plug 7. Specifically, the flexible plug 7 is made of rubber and its diameter is slightly larger than the diameter of the bottom end of the inflation tube 1, so that it can completely fit and seal the bottom end of the inflation tube 1.

[0019] The base shell 8 is fitted on the outside of the inflation tube 1. The outer periphery of the base shell 8 has an outwardly extending edge, which can enhance the fit stability between the inflation nozzle and the mounting base. The outer side of the base shell 8 has an external thread that matches the internal thread of the locking sleeve 9. Tightening the locking sleeve 9 can further fix the connection between the inflation tube 1 and the mounting base, and improve the overall sealing performance.

[0020] Automatic pressure relief working principle: As the inflation process progresses, the air pressure inside the tent or air mattress gradually increases. When the air pressure reaches a preset threshold, the gas inside the tent / air mattress enters the bottom of the elongated hole 101 through the second pressure relief port 103, generating upward pressure on the plug 5. When this upward pressure is greater than the elastic force of the spring 4, the gas pushes the plug 5 to slide upward along the elongated hole 101, while compressing the spring 4. After the plug 5 rises, its side wall is misaligned with the connection point of the second pressure relief port 103, and the elongated hole 101 is connected to the outside through the second pressure relief port 103. Excess gas is discharged to the outside through the first pressure relief port 102 located on one side of the upper end of the inflation tube 1. When the air pressure inside the tent / air mattress drops to a safe value, the elastic force of the spring 4 is greater than the upward pressure of the gas on the plug 5. The spring 4 resets and pushes the plug 5 down to the bottom of the elongated hole 101, re-sealing the second pressure relief port 103, stopping the pressure relief, and achieving automatic pressure stabilization.

[0021] When it is necessary to deflate the tent or air mattress, there is no need to disassemble the inflation tube 1. Simply follow these steps: unscrew the valve cap 2, insert a tool or finger into the upper opening of the inflation tube 1, and press down on the connecting rod 6; as the connecting rod 6 moves downward, it causes the flexible plug 7 at its lower end to separate from the bottom end of the inflation tube 1, and the bottom opening of the inflation tube 1 connects to the outside; under its own pressure, the gas inside the tent / air mattress is discharged to the outside through the air hole 1041 of the arc plate 104 and the upper opening of the inflation tube 1, achieving rapid deflation.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A tent or air cushion inflator with a pressure relief structure, characterized in that, It includes an inflation tube (1) and a pressure relief structure located inside the inflation tube (1). The lower end of the inflation tube (1) is externally threaded to a mounting base on a tent or air cushion, and the upper end of the inflation tube (1) is externally threaded to an air nozzle cap (2). The inflation tube (1) has an elongated hole (101) inside. The pressure relief structure can move up and down inside the elongated hole (101). The upper and lower ends of the inflation tube (1) are respectively provided with a first pressure relief port (102) and a second pressure relief port (103) communicating with the elongated hole (101). During the inflation stage, the pressure relief structure blocks the opening where the second pressure relief port (103) communicates with the elongated hole (101). When the inflation reaches a certain pressure, the air enters the pressure relief mechanism through the second pressure relief port (103) and rises.

2. The tent or air cushion inflator with a pressure relief structure according to claim 1, characterized in that, The pressure relief structure includes a screw (3), a spring (4) and a plug (5). The screw (3) is threaded to the upper end of the elongated hole (101), the plug (5) is located at the bottom of the elongated hole (101), one end of the spring (4) is sleeved on the top of the plug (5), and the other end abuts against the bottom of the screw (3).

3. The tent or air cushion inflator with a pressure relief structure according to claim 1, characterized in that, The bottom of the inflation tube (1) is provided with an inwardly protruding arc plate (104), and air holes (1041) are distributed on the arc plate (104). The middle part of the arc plate (104) is provided with an insertion port (105), and a connecting rod (6) is inserted into the insertion port (105). A flexible plug (7) is fixed to one end of the connecting rod (6) extending out of the arc plate (104). The flexible plug (7) can fit against the bottom port of the inflation tube (1).

4. The tent or air cushion inflator with a pressure relief structure according to claim 2, characterized in that, The inflation nozzle also includes a base shell (8) with an outer edge, on which a locking sleeve (9) is threadedly connected.

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