Nitrogen pressurizing device

Abstract

The utility model discloses a nitrogen pressurizing device, and relates to the field of nitrogen inflating equipment, the nitrogen pressurizing device comprises an inflator main body, the top of the inflator main body is provided with a gas delivery pipe orifice, one end of the inflator main body is provided with an inflating pipe orifice, and the surface of the inflating pipe orifice is fixedly connected with an inflating hose; one end of the inflation hose is fixedly connected with an inflation connector, the inner wall of the inflation connector is fixedly connected with a partition plate, and a through hole is formed in the surface of the partition plate. When the gas charging connector is in butt joint with collecting equipment, the pipe opening pushes the pushing disc to drive the sealing plug to automatically open the through hole, so that nitrogen smoothly flows in, when the pushing disc is separated from the collecting equipment, the reset spring drives the sealing plug to quickly plug the through hole, gas leakage is eradicated, and meanwhile the elastic rubber sealing soft cushion on the pushing disc can seal the through hole under the action of the reset spring. The device can be adaptively attached to the surfaces of different equipment pipe orifices to form dynamic sealing, the problem of air leakage caused by poor connector adaptability of a traditional air inflation device is solved, and it is guaranteed that the nitrogen inflation process is accurate and efficient.

Description

Technical Field

[0001] This utility model relates to the technical field of nitrogen gas filling equipment, and in particular to a nitrogen gas pressurization device. Background Technology

[0002] In modern industrial production and civilian applications, nitrogen pressurization devices are indispensable key equipment due to nitrogen's stable chemical properties and non-flammability. In the tire manufacturing industry, filling with high-purity nitrogen can effectively reduce the coefficient of thermal expansion of gases inside tires, improving driving safety and tire lifespan. In pipeline airtightness testing, nitrogen, being colorless, odorless, and non-corrosive, can accurately detect pipeline leaks without contaminating the system. Furthermore, nitrogen pressurization devices also play a crucial role in high-end fields such as electronic chip manufacturing and aerospace component production, with their performance directly impacting product quality and production efficiency.

[0003] Existing nitrogen pressurization devices have many problems in actual use: First, in terms of sealing performance, traditional pressurization joints mostly adopt a planar sealing structure. Under high-pressure nitrogen pressurization environment, the sealing surface is prone to gaps due to uneven stress, resulting in nitrogen leakage. This not only wastes resources but may also cause safety hazards. Second, the pressurization control mechanism is not intelligent enough. Some devices require manual opening and closing of valves to control the start and stop of pressurization. The operation process is cumbersome and prone to human negligence, which may cause pressurization to start before the connection is completed, resulting in nitrogen waste. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a nitrogen pressurization device.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen pressurization device, comprising a pressurizer body, a gas inlet at the top of the pressurizer body, and an inflation inlet at one end of the pressurizer body. An inflation hose is fixedly connected to the surface of the inflation inlet, and an inflation connector is fixedly connected to one end of the inflation hose. A partition is fixedly connected to the inner wall of the inflation connector, and a through hole is formed on the surface of the partition. A sealing plug is slidably connected to the inner wall of the through hole. A sliding rod is formed at one end of the sealing plug, and a fixing frame is slidably connected to the surface of the sliding rod. The fixing frame is fixedly connected to the inner wall of the inflation connector, and a pusher plate is fixedly connected to the end of the sliding rod away from the sealing plug. A vent hole is formed on the surface of the pusher plate.

[0008] In a preferred embodiment of the nitrogen pressurization device of this utility model, a return spring is sleeved on the surface of the sliding rod, and the two ends of the return spring are fixedly connected to the surfaces of the fixed frame and the push plate, respectively.

[0009] In a preferred embodiment of the nitrogen pressurization device of this utility model, a sealing pad is provided on the side of the push plate away from the sliding rod, and the sealing pad is made of elastic rubber.

[0010] In a preferred embodiment of the nitrogen pressurization device of this utility model, a rotating groove is provided on the outer side of the inflation connector, and a rotating rail is rotatably connected to the inner wall of the rotating groove.

[0011] In a preferred embodiment of the nitrogen pressurization device of this utility model, a fixing sleeve is fixedly connected to the outer side of the rotating rail, and a threaded groove is formed on the inner wall of the fixing sleeve.

[0012] In a preferred embodiment of the nitrogen pressurization device of this utility model, the through hole and the sealing plug are in the shape of a conical cylinder, and the cross-section of the rotating groove and the rotating rail is "T" shaped.

[0013] (III) Beneficial Effects

[0014] This invention provides a nitrogen pressurization device. It has the following beneficial effects:

[0015] 1. When the inflation connector is connected to the collection device, the pipe port pushes the push plate to automatically open the through hole of the sealing plug, allowing nitrogen to flow in smoothly. When disconnected, the return spring drives the sealing plug to quickly seal the through hole, preventing gas leakage. At the same time, the elastic rubber sealing pad on the push plate can adaptively fit the surface of different equipment pipe ports under the action of the return spring, forming a dynamic seal. This solves the problem of gas leakage caused by poor interface compatibility of traditional inflation devices, ensuring that the nitrogen filling process is accurate and efficient.

[0016] 2. The T-shaped rotating rail on the outside of the inflation connector, combined with the threaded fixing sleeve design, combines flexibility and stability. The T-shaped structure allows the fixing sleeve to rotate freely 360°, making it easy to adjust the angle of the inflation connector in complex spaces and adapt to various equipment interfaces. The threaded connection provides reliable fastening force, and the anti-drop design of the rotating rail prevents the interface from loosening under high pressure inflation or vibration environments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the inflatable hose of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the air inflator in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the push plate in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the fixing sleeve in this utility model.

[0023] In the diagram, 1. Inflator body; 2. Inflation port; 3. Air supply port; 4. Inflation hose; 5. Inflation connector; 6. Fixing sleeve; 7. Through hole; 8. Sealing plug; 9. Slide rod; 10. Fixing frame; 11. Push plate; 12. Return spring; 13. Vent hole; 14. Sealing pad; 15. Rotary groove; 16. Rotary rail; 17. Threaded groove; 18. Partition plate. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Reference Figures 1 to 5As shown, this utility model provides a technical solution: a nitrogen pressurization device, including a pressurizer body 1, a gas inlet 3 at the top of the pressurizer body 1, and a gas inlet 2 at one end of the pressurizer body 1. A gas inlet hose 4 is fixedly connected to the surface of the gas inlet 2, and a gas inlet connector 5 is fixedly connected to one end of the gas inlet hose 4. A partition 18 is fixedly connected to the inner wall of the gas inlet connector 5. A through hole 7 is opened on the surface of the partition 18, and a sealing plug 8 is slidably connected to the inner wall of the through hole 7. A sliding rod 9 is slidably connected to one end of the sealing plug 8, and a fixing frame 10 is slidably connected to the surface of the sliding rod 9. The fixing frame 10 is fixedly connected to the inner wall of the gas inlet connector 5, and a pusher plate 11 is fixedly connected to the end of the sliding rod away from the sealing plug 8. A vent hole 13 is opened on the surface of the pusher plate 11. When nitrogen pressurization is required, first connect the nitrogen-filled storage device to the gas inlet 3, and then turn on the pressurizer body 1. (The model of this pressurizer body is FLT-) 3500) The main body 1 of the inflation machine delivers nitrogen to the inflation connector 5 through the air guide hose. Then, the inflation connector 5 is inserted into the nitrogen collection device. The tube head of the collection device pushes the push plate 11, which drives the sliding rod to move. This causes the push rod to open the through hole 7 of the density plug, allowing the nitrogen in the inflation hose 4 to flow into the collection device through the vent hole 13. This avoids nitrogen leakage from the inflation connector 5 before the connection is completed, thus reducing resource waste.

[0026] Reference Figure 4 As shown in this embodiment: a return spring 12 is sleeved on the surface of the sliding rod. The two ends of the return spring 12 are fixedly connected to the surfaces of the fixed frame 10 and the push plate 11, respectively. A sealing pad 14 is provided on the side of the push plate 11 away from the sliding rod. The sealing pad 14 is made of elastic rubber. When the interface of the collection device pushes the push plate 11 to move, the push plate back squeezes the return spring 12 and deforms. At the same time, the reaction force generated by the deformation of the return spring 12 can make the sealing pad 14 stick tightly to the interface surface of the collection device, thereby sealing the tiny gap between the interface of the collection device and the push plate 11 and reducing gas leakage.

[0027] Reference Figure 3 and Figure 5 As shown, specifically, the outer side of the inflation connector 5 is provided with a rotating groove 15, the inner wall of the rotating groove 15 is rotatably connected to a rotating rail 16, the outer side of the rotating rail 16 is fixedly connected to a fixing sleeve 6, the inner wall of the fixing sleeve 6 is provided with a threaded groove 17, the through hole 7 and the sealing plug 8 are shaped like a conical cylinder, the cross section of the rotating groove 15 and the rotating rail 16 is "T" shaped, through the T-shaped fit between the inner wall of the rotating groove 15 and the rotating rail 16, the rotating rail 16 is restricted in the groove and cannot fall off when rotating, and then the fixing sleeve 6 is rotated, and through the threaded groove 17 provided in the inner wall of the fixing sleeve 6, it is threadedly connected to the pipe opening of the collection device, which can drive the inflation connector 5 to be inserted into the pipe opening of the collection device.

[0028] Working principle: When nitrogen filling is required, first connect the nitrogen storage device to the gas inlet 3 on the top of the filling machine body 1. After turning on the filling machine body 1, nitrogen enters the filling machine body 1 through the gas inlet 3 and is delivered to the filling hose 4 fixedly connected to it through the filling port 2, finally reaching the filling connector 5. At this time, the filling connector 5 is in an initial sealed state, that is, the sealing plug 8 is tightly attached to the through hole 7 on the surface of the partition 18 under the action of the return spring 12, preventing nitrogen leakage. When filling, align the filling connector 5 with the nitrogen collection device port. Rotate the fixed sleeve 6 rotatably connected in the outer groove 15 of the filling connector 5. The threaded groove 17 on the inner wall of the fixed sleeve 6 engages with the external thread of the collection device port. Since the cross section of the groove 15 and the rotating rail 16 is "T" shaped, the rotating rail 16 is restricted in the groove 15 during rotation and cannot fall off axially, ensuring that the fixed sleeve 6 remains connected to the filling connector 5 during rotation. Next, as the fixed sleeve 6 rotates and advances, the inflation connector 5 is gradually inserted into the collection device's pipe opening. The pipe opening end face pushes the pusher plate 11 inside the inflation connector 5 to move inward. The movement of the pusher plate 11 causes the slide rod 9, which is fixedly connected to it, to slide along the fixed frame 10. The sealing plug 8 at the other end of the slide rod 9 then disengages from the through hole 7, opening the through hole 7. At the same time, the pusher plate 11 squeezes the return spring 12, causing it to undergo elastic deformation. The reaction force generated by the return spring 12 causes the sealing pad 14 on the pusher plate 11 to tightly adhere to the end face of the collection device's pipe opening, sealing the tiny gap between them. At this time, nitrogen gas passes through the through hole 7 of the partition plate 18 and the vent hole 13 on the surface of the pusher plate 11 in sequence, entering the collection device to complete the pressurization process. When the inflation operation is completed, the fixed sleeve 6 is loosened to disengage the inflation connector 5 from the collection device's pipe opening. The elastic restoring force of the return spring 12 pushes the pusher plate 11 to return to its original position, causing the sealing plug 8 to re-block the through hole 7, restoring the sealing state of the inflation connector 5 and preventing nitrogen leakage.

[0029] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A nitrogen pressurization device, comprising a pressurizer body (1), characterized in that: The top of the inflator body (1) is provided with an air inlet (3), and one end of the inflator body (1) is provided with an air inlet (2). An air inlet hose (4) is fixedly connected to the surface of the air inlet (2). An air inlet connector (5) is fixedly connected to one end of the air inlet hose (4). A partition (18) is fixedly connected to the inner wall of the air inlet connector (5). A through hole (7) is opened on the surface of the partition (18). A sealing plug (8) is slidably connected to the inner wall of the through hole (7). A sliding rod (9) is slidably connected to one end of the sealing plug (8). A fixing frame (10) is slidably connected to the surface of the sliding rod (9). The fixing frame (10) is fixedly connected to the inner wall of the air inlet connector (5). A pusher plate (11) is fixedly connected to the end of the sliding rod away from the sealing plug (8). A vent hole (13) is opened on the surface of the pusher plate (11).

2. The nitrogen pressurization device according to claim 1, characterized in that: A return spring (12) is sleeved on the surface of the sliding rod, and the two ends of the return spring (12) are fixedly connected to the surfaces of the fixed frame (10) and the push plate (11), respectively.

3. The nitrogen pressurization device according to claim 1, characterized in that: A sealing pad (14) is provided on the side of the push plate (11) away from the sliding rod. The sealing pad (14) is made of elastic rubber.

4. A nitrogen pressurization device according to claim 1, characterized in that: The outer side of the inflation connector (5) is provided with a rotating groove (15), and the inner wall of the rotating groove (15) is rotatably connected with a rotating rail (16).

5. A nitrogen pressurization device according to claim 4, characterized in that: The outer side of the rotating rail (16) is fixedly connected to a fixing sleeve (6), and the inner wall of the fixing sleeve (6) is provided with a threaded groove (17).

6. A nitrogen pressurization device according to claim 4, characterized in that: The through hole (7) and the sealing plug (8) are in the shape of a conical cylinder, and the cross-section of the rotating groove (15) and the rotating rail (16) is "T" shaped.

Images