Gas filling device

Abstract

The utility model discloses a gas filling device which comprises a linear section gas curtain assembly, an arc section gas curtain assembly, a plug pressing gas needle assembly, a lifting assembly and a gas supply seat assembly. The linear section gas curtain assembly, the arc section gas curtain assembly and the plug pressing gas needle assembly are sequentially arranged on the lifting assembly. The gas supply seat assembly is arranged on one side of the lifting assembly; and the gas supply seat assembly is communicated with the linear section gas curtain assembly, the arc section gas curtain assembly and the plug pressing gas needle assembly through guide pipes. The device can stably and effectively control the headspace residual oxygen amount of injection in the penicillin bottle within 2%.

Description

TECHNICAL FIELD

[0001] The utility model relates to pharmaceutical equipment technical field, in particular to a gas filling device. BACKGROUND

[0002] The stability of injection is closely related to residual oxygen content in the package, oxygen is a strong oxidant, when the oxygen content in the medicine package is too high, the drug molecules are easy to react with oxygen, thereby leading to degradation and deterioration of the drug, therefore, the control of residual oxygen content in the medicine package is very important. The existing filling equipment can stably control the residual oxygen content in the headspace of the penicillin bottle injection within 3-5%, and better one can stably control the residual oxygen content within 2%-3%. However, with the successful development and wide application of various biological agents and vaccines in recent years, the control standard of the residual oxygen content in the headspace of the injection is also rising, and more stringent requirements are put forward. At present, there is no excellent residual oxygen content control system that can stably and effectively control the residual oxygen content in the headspace of the penicillin bottle injection within 2%, which has undoubtedly become one of the key problems to be solved in the field of injection packaging technology. SUMMARY

[0003] The utility model discloses a gas filling device can stably and effectively control the residual oxygen content in the headspace of the penicillin bottle injection within 2%.

[0004] To solve the above technical problems, the utility model provides a gas filling device, including straight line section gas curtain subassembly, arc line section gas curtain subassembly, press plug gas needle subassembly, lifting assembly and gas supply seat subassembly;

[0005] The straight line section gas curtain subassembly, the arc line section gas curtain subassembly and the press plug gas needle subassembly are sequentially arranged on the lifting assembly;

[0006] The gas supply seat subassembly is arranged on one side of the lifting assembly, and the gas supply seat subassembly is communicated with the straight line section gas curtain subassembly, the arc line section gas curtain subassembly and the press plug gas needle subassembly through a pipe.

[0007] Further, the straight line section gas curtain subassembly includes a straight line section air filling groove, a straight line section partition plate, a straight line section sealing plate, a straight line section shield and a straight line section gas needle.

[0008] The linear segment air slot is provided with a first air inlet pipe at the top; the linear segment sealing plate is installed at the bottom of the linear segment air slot and forms a closed first chamber with the linear segment air slot; the linear segment partition plate is arranged in the first chamber; the linear segment sealing plate is located between the linear segment air slot and the linear segment cover; one end of the linear segment air needle is installed on the linear segment sealing plate, and the other end extends into the interior of the linear segment cover; the first air inlet pipe, the first chamber and the linear segment air needle are in communication.

[0009] Further, the arc segment gas curtain assembly comprises an arc segment air slot, an arc segment partition plate, an arc segment sealing plate, an arc segment cover and an arc segment air needle.

[0010] The arc segment air slot is provided with a second air inlet pipe at the top; the arc segment sealing plate is installed at the bottom of the arc segment air slot and forms a closed second chamber with the arc segment air slot; the arc segment partition plate is arranged in the second chamber; the arc segment sealing plate is located between the arc segment air slot and the arc segment cover; one end of the arc segment air needle is installed on the arc segment sealing plate, and the other end extends into the interior of the arc segment cover; the second air inlet pipe, the second chamber and the arc segment air needle are in communication.

[0011] Further, the plug gas needle assembly comprises a plug air slot, a plug partition plate, a plug sealing plate and a plug air needle.

[0012] The plug air slot is provided with a third air inlet pipe at the top; the plug sealing plate is installed at the bottom of the plug air slot and forms a closed third chamber with the plug air slot; the plug partition plate is arranged in the third chamber; the plug sealing plate is provided with a through hole for air inlet of the plug air needle at the center line, and the through hole is provided with threaded holes on both sides for fixing the plug air needle; the plug air needle is at a predetermined angle with the plug sealing plate; the third air inlet pipe, the third chamber and the plug air needle are in communication.

[0013] Further, the linear segment partition plate, the arc segment partition plate and the plug partition plate are all multi-layer partition plates, and the through holes between adjacent two layers of the partition plates are staggered to make the gas flow multiple times.

[0014] Further, the linear segment air needle, the arc segment air needle and the plug air needle are all multiple, and are arranged at equal intervals along the length direction and / or width direction of the linear segment sealing plate, the arc segment sealing plate and the plug sealing plate respectively.

[0015] Further, the first air inlet pipe comprises a first air inlet and a first air outlet; the second air inlet pipe comprises a second air inlet and a second air outlet; and the third air inlet pipe comprises a third air inlet and a third air outlet.

[0016] Further, the lifting assembly comprises a base, a guide seat, a limiting rod, a sliding screw rod, a nut, an inflation assembly positioning plate, a digital positioning plate, a display, a digital connecting rod, an adjusting knob, a flat knob and a guardrail knob;

[0017] The guide seat is fixed on the base; the limiting rod and the sliding screw rod are vertically arranged on the guide seat; the top end of the sliding screw rod is fixedly connected with the adjusting knob; the nut is threadedly connected with the sliding screw rod; the inflation assembly positioning plate is fixedly connected with the nut, and the inflation assembly positioning plate is provided with a through hole through which the limiting rod passes to prevent the inflation assembly positioning plate from rotating; the digital positioning plate is fixedly connected with the inflation assembly positioning plate through the digital connecting rod; the display is arranged on the digital positioning plate; and the flat knob and the guardrail knob are arranged on the inflation assembly positioning plate.

[0018] Further, the gas supply seat assembly comprises a gas seat and a filter; the filter is arranged at the gas outlet end of the gas seat; and the filter is communicated with the linear-section gas curtain assembly, the arc-section gas curtain assembly and the plug gas needle assembly through the conduit.

[0019] Further, the linear-section gas curtain assembly, the arc-section gas curtain assembly and the plug gas needle assembly are installed on the lifting assembly through threaded connection.

[0020] Through the above technical scheme, the utility model has the following beneficial effects:

[0021] By arranging the combination structure of the linear-section gas curtain assembly, the arc-section gas curtain assembly and the plug gas needle assembly, different shapes of packaging containers can be adapted, and omnidirectional gas filling protection is realized; the design of the lifting assembly enables the gas filling device to accurately adjust the height position, thereby improving the operation convenience; the filter of the gas supply seat assembly ensures the purity of the filled gas, thereby ensuring the protection effect of the product. In addition, through the collaborative nitrogen filling of the three stations, the headspace residual oxygen content of the penicillin bottle injection can be stably controlled within 2%, thereby significantly improving the product quality.

[0022] In addition, by arranging the baffles in multiple layers in a staggered mode, the gas is turned multiple times during the flow process, thereby ensuring the uniformity of the gas distribution; the equidistant arrangement of the multiple gas needles improves the gas filling efficiency; and the modular design of the gas needle assembly facilitates installation and maintenance, thereby improving the practicability and reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a schematic structural view of the overall structure of the gas filling device in one direction according to an embodiment of the utility model;

[0024] Figure 2 Overall structure schematic view of the gas filling device in another direction according to an embodiment of the present utility model;

[0025] Figure 3 Overall structure schematic view of the straight line section gas curtain assembly according to an embodiment of the present utility model;

[0026] Figure 4 Figure 3 Sectional view in A-A direction;

[0027] Figure 5 Sectional view of the arc line section gas curtain assembly according to an embodiment of the present utility model;

[0028] Figure 6 Figure 5 Sectional view in B-B direction;

[0029] Figure 7 Sectional view of the plug gas needle assembly according to an embodiment of the present utility model;

[0030] Figure 8 Figure 7 Sectional view in C-C direction;

[0031] Figure 9 Structure schematic view of the lifting assembly according to an embodiment of the present utility model;

[0032] Figure 10 Figure 9 Sectional view in G-G direction;

[0033] Figure 11 Structure schematic view of the straight line section partition plate in the gas filling device according to an embodiment of the present utility model.

[0034] In the figure, 1, straight line section gas curtain assembly; 11, straight line section air filling groove; 110, first air inlet pipe; 1101, first air inlet; 1102, first air outlet; 111, first chamber; 12, straight line section partition plate; 13, straight line section sealing plate; 14, straight line section shield; 15, straight line section gas needle;

[0035] 2, arc line section gas curtain assembly; 21, arc line section air filling groove; 210, second air inlet pipe; 2101, second air inlet; 2102, second air outlet; 211, second chamber; 22, arc line section partition plate; 23, arc line section sealing plate; 24, arc line section shield; 25, arc line section gas needle;

[0036] 3, plug gas needle assembly; 31, plug air filling groove; 310, third air inlet pipe; 3101, third air inlet; 3102, third air outlet; 311, third chamber; 32, plug partition plate; 33, plug sealing plate; 34, plug gas needle; ​​​​

[0037] 4, lifting assembly; 401, base; 402, guide seat; 403, limiting rod; 404, sliding screw; 405, nut; 406, inflatable assembly positioning plate; 407, digital positioning plate; 408, display; 409, digital connecting rod; 410, adjusting knob; 411, flat knob; 412, guardrail knob;

[0038] 5, gas supply seat assembly; 51, gas seat; 52, filter. DETAILED DESCRIPTION

[0039] A gas filling device according to the present application will be described in more detail below with reference to the drawings, in which preferred embodiments of the present application are shown, it being understood that a person skilled in the art can modify the present application described herein while still achieving the advantageous effects of the present application. Therefore, the following description should be understood as a broad knowledge for a person skilled in the art, and not as a limitation of the present application.

[0040] The present application will be described in more detail in the following paragraphs with reference to the drawings. The advantages and features of the present application will be more apparent according to the following description. It should be noted that the drawings are very simplified and use non-precise proportions, only to facilitate, clarify the purpose of assisting the description of the embodiments of the present application.

[0041] As shown in Figure 1 and Figure 2 The present application proposes a convenient and practical gas filling device, comprising a straight line segment gas curtain assembly 1, an arc line segment gas curtain assembly 2, a plug gas needle assembly 3, a lifting assembly 4 and a gas supply seat assembly 5.

[0042] Specifically, the straight line segment gas curtain assembly 1, the arc line segment gas curtain assembly 2 and the plug gas needle assembly 3 are sequentially arranged on the lifting assembly 4; the gas supply seat assembly 5 is arranged on one side of the lifting assembly 4; the gas supply seat assembly 5 is communicated with the straight line segment gas curtain assembly 1, the arc line segment gas curtain assembly 2 and the plug gas needle assembly 3 through a conduit. This three-segment gas filling structure improves the adaptability to different shaped packaging containers.

[0043] In this embodiment, a three-stage gas filling system is formed by combining the straight-segment gas curtain assembly 1, the arc-segment gas curtain assembly 2, and the stopper gas needle assembly 3: the straight-segment gas curtain assembly 1 is suitable for the straight edge of the packaging container, the arc-segment gas curtain assembly 2 is suitable for the arc-shaped area of ​​the packaging container, and the stopper gas needle assembly 3 extends into the interior of the packaging container for directional filling. The three work together to achieve all-round coverage of packaging containers of different shapes. The lifting assembly 4 adopts a double-rod structure of sliding screw 404 and limiting rod 403, and with the digital display system, it can accurately control the filling height to adapt to packaging containers of different specifications. The filter 52 of the gas supply seat assembly 5 ensures the purity of the filling gas and guarantees the protective effect of the product.

[0044] For preferred options, please refer to the following: Figure 1 and Figure 2 As shown, the gas supply assembly 5 includes a gas seat 51 and a filter 52. Specifically, the filter 52 is disposed at the gas outlet end of the gas seat 51; the filter 52 is connected to the straight segment gas curtain assembly 1, the curved segment gas curtain assembly 2, and the plug gas needle assembly 3 via the conduit. This structure improves the purity of the filling gas.

[0045] Preferred, such as Figure 3 and Figure 4 As shown, the straight section gas curtain assembly 1 includes a straight section air inlet 11, a straight section partition 12, a straight section sealing plate 13, a straight section protective cover 14, and a straight section air needle 15.

[0046] Specifically, the top of the straight section inflation groove 11 is provided with a first air inlet pipe 110; the straight section sealing plate 13 is installed at the bottom of the straight section inflation groove 11, forming a closed first chamber 111 with the straight section inflation groove 11; the straight section partition 12 is disposed in the first chamber 111; the straight section sealing plate 13 is located between the straight section inflation groove 11 and the straight section protective cover 14; one end of the straight section air needle 15 is installed on the straight section sealing plate 13, and the other end extends into the inside of the straight section protective cover 14; the first air inlet pipe 110, the first chamber 111 and the straight section air needle 15 are connected. This structure allows the gas to be evenly distributed in the first chamber 111 and form a stable airflow through the straight section air needle 15, while the straight section protective cover 14 can effectively prevent external airflow interference and improve the inflation effect.

[0047] One end of the straight section cover 14 is fixedly connected to the straight section sealing plate 13, and the other end is disposed away from the straight section sealing plate 13. The straight section cover 14 has a hollow structure to accommodate the straight section air needle 15.

[0048] In a specific example, the inert gas enters from the first gas inlet pipe 110, is evenly distributed in the first chamber 111 by the multi-layer straight section baffle 12, and then forms a directional and stable gas flow through the straight section gas needle 15. The straight section shroud 14 can effectively prevent external interference and improve the utilization efficiency of the gas. Through this structural design, the air in the vial can be effectively replaced before filling, creating a good inert gas environment for the subsequent filling process.

[0049] In an embodiment, as shown in Figure 5 and Figure 6 , the arc section gas curtain assembly 2 includes an arc section air supply groove 21, an arc section baffle 22, an arc section sealing plate 23, an arc section shroud 24, and an arc section gas needle 25.

[0050] Specifically, the arc section air supply groove 21 is provided with a second gas inlet pipe 210 at the top; the arc section sealing plate 23 is installed at the bottom of the arc section air supply groove 21 and forms a closed second chamber 211 with the arc section air supply groove 21; the arc section baffle 22 is arranged in the second chamber 211; the arc section sealing plate 23 is located between the arc section air supply groove 21 and the arc section shroud 24; one end of the arc section gas needle 25 is installed on the arc section sealing plate 23, and the other end extends into the arc section shroud 24; the second gas inlet pipe 210, the second chamber 211, and the arc section gas needle 25 are in communication. This structure enhances the gas filling effect in the arc region.

[0051] The arc section shroud 24 is arranged in an arc shape, one end of which is fixedly connected to the arc section sealing plate 23, and the other end is away from the arc section sealing plate 23, and the front surface is provided with an arc-shaped opening for avoiding interference with the transmission guardrail; the arc section gas needle 25 is arranged in an arc array along the arc contour of the arc section sealing plate 23.

[0052] In a specific example, after the inert gas enters from the second gas inlet pipe 210, it is evenly distributed in the second chamber 211 by the arc section baffle 22, and then forms a continuous arc-shaped gas curtain through the arc-shaped arrangement of the arc section gas needle 25. This structural design has the following technical effects: first, the arc-shaped structure design matches the transfer trajectory of the vial, increasing the coverage area of the gas filling protection; second, the cooperation of the arc-shaped shroud and the arc-shaped gas needle ensures that the filled vial is always in a stable inert gas environment during the entire arc-shaped transfer process; finally, this structure can effectively supplement the inert gas lost during the filling process, providing a good gas environment for the subsequent plug process.

[0053] Preferably, as shown in Figure 7 and Figure 8As shown, the plugging gas needle assembly 3 comprises a plugging inflation groove 31, a plugging partition plate 32, a plugging sealing plate 33 and a plugging gas needle 34.

[0054] Specifically, the plugging inflation groove 31 is provided with a third air inlet pipe 310 at the top; the plugging sealing plate 33 is installed at the bottom of the plugging inflation groove 31, forming a closed third chamber 311 with the plugging inflation groove 31; the plugging partition plate 32 is arranged in the third chamber 311; the plugging sealing plate 33 is provided with a through hole for the plugging gas needle 34 to enter the gas at the center line, and the through hole is provided with threaded holes on both sides for fixing the plugging gas needle 34; the plugging gas needle 34 is at a predetermined angle with the plugging sealing plate 33. Those skilled in the art can know that the predetermined angle can be set according to actual needs, preferably 15-45 degrees, and also includes other angles except this embodiment. The third air inlet pipe 310, the third chamber 311 and the plugging gas needle 34 are in communication. This structure improves the effect of gas replacement in the deep layer of the packaging container.

[0055] Among them, the plugging gas needle 34 is at a predetermined angle with the plugging sealing plate 33 and is arranged at equal intervals along the center line of the plugging sealing plate 33, so that the gas outlet end of the plugging gas needle 34 faces the bottle opening position of the Westlin bottle.

[0056] In a specific example, after the inert gas enters the third chamber 311 from the third air inlet pipe 310, the gas pressure is uniformized by the shunt effect of the plugging partition plate 32, and then enters the plugging gas needle 34 through the through hole on the plugging sealing plate 33. Because the plugging gas needle 34 is arranged at an angle, the gas flow can be obliquely injected into the Westlin bottle, forming a spiral inflation path during the plugging process. This structure design has the following advantages: first, the setting of the inclination angle makes the gas flow enter the bottle space more deeply, improving the gas replacement efficiency; second, the spiral inflation path increases the contact area between the gas and the air in the bottle, accelerating the oxygen replacement process; finally, the continuous filling of inert gas during the entire plugging process can effectively prevent the backflow of external air, ensuring the stability of the inert gas environment in the Westlin bottle.

[0057] Preferably, the straight line section gas needle 15, the arc line section gas needle 25 and the plugging gas needle 34 are all multiple, and are arranged at equal intervals along the length direction and / or width direction of the straight line section sealing plate 13, the arc line section sealing plate 23 and the plugging sealing plate 33 respectively. This equal interval arrangement of the gas needle structure makes the inert gas form a continuous and uniform gas curtain, and the optimization design of the gas needle interval can not only ensure sufficient gas coverage, but also avoid mutual interference between adjacent gas flows, thereby improving the gas filling efficiency and utilization rate.

[0058] In the embodiment, the first air inlet pipe 110 comprises a first air inlet 1101 and a first air outlet 1102; the second air inlet pipe 210 comprises a second air inlet 2101 and a second air outlet 2102; and the third air inlet pipe 310 comprises a third air inlet 3101 and a third air outlet 3102. The design enhances the controllability of the gas flow. Those skilled in the art can know that the number of each air inlet and air outlet can be set according to actual conditions.

[0059] In an embodiment, as shown in Figure 9 and Figure 10 The lifting assembly 4 comprises a base 401, a guide seat 402, a limiting rod 403, a sliding screw rod 404, a nut 405, an inflatable assembly positioning plate 406, a digital display positioning plate 407, a display 408, a digital display connecting rod 409, an adjusting knob 410, a flat head knob 411 and a guardrail knob 412.

[0060] Specifically, the guide seat 402 is fixed on the base 401; the limiting rod 403 and the sliding screw rod 404 are vertically arranged on the guide seat 402; the top end of the sliding screw rod 404 is fixedly connected with the adjusting knob 410; the nut 405 is threadedly matched with the sliding screw rod 404; the inflatable assembly positioning plate 406 is fixedly connected with the nut 405, and the inflatable assembly positioning plate 406 is provided with a through hole through which the limiting rod 403 passes, so that the limiting rod 403 prevents the inflatable assembly positioning plate 406 from rotating.

[0061] The limiting rod 403 not only prevents the positioning plate from rotating, but also plays a guiding role, thereby improving the stability and smoothness of the lifting process.

[0062] Further, the digital display positioning plate 407 is fixedly connected with the inflatable assembly positioning plate 406 through the digital display connecting rod 409; the display 408 is arranged on the digital display positioning plate 407; and the flat head knob 411 and the guardrail knob 412 are arranged on the inflatable assembly positioning plate 406. The flat head knob 411 and the guardrail knob 412 are respectively used for fixing the positions of the inflatable assembly and the guardrail.

[0063] In a specific example, rotating the adjusting knob 410 drives the sliding screw rod 404 to rotate, and the threaded matching between the nut 405 and the sliding screw rod 404 converts the rotary motion into the lifting motion of the inflatable assembly positioning plate 406.

[0064] In an embodiment, as shown in Figure 11As shown, the straight-line segment partition plate 12, the arc-line segment partition plate 22 and the pressure plug partition plate 32 are all provided as multi-layer partition plates, and the through holes between adjacent two layers of the partition plates are staggered to make the gas flow multiple times. Figure 11 Taking the plurality of straight-line segment partition plates 12 as an example, the distribution of the arc-line segment partition plate 22 and the pressure plug partition plate 32 can refer to that of the straight-line segment partition plate 12. The multi-layer staggered arrangement makes the gas flow multiple times when flowing through each layer of the partition plate, significantly reduces the gas flow speed, increases the gas diffusion area, effectively improves the gas distribution uniformity, and avoids local gas flow impact being too strong. As known by those skilled in the art, the number of layers of the partition plate can be set according to actual needs, and is preferably 3-5 layers. The structure enhances the gas distribution uniformity.

[0065] In the embodiment, the straight-line segment gas curtain assembly 1, the arc-line segment gas curtain assembly 2 and the pressure plug gas needle assembly 3 are installed on the lifting assembly 4 through threaded connection. The connection mode improves the convenience of component replacement and maintenance.

[0066] In the embodiment, the vials continuously move on the production line and sequentially pass through three nitrogen filling stations, i.e., a pre-filling nitrogen filling station, a post-filling nitrogen filling station and a pressure plug nitrogen filling station. First, an operator adjusts the overall height of the three gas assemblies according to the specifications of the vials to be filled by rotating the adjusting knob 410 to drive the sliding lead screw 404 to rotate, so that the nut 405 drives the gas assembly positioning plate 406 to move up and down, thereby adjusting the overall height of the three gas assemblies. In this process, the limiting rod 403 prevents the gas assembly positioning plate 406 from rotating by passing through the perforations of the gas assembly positioning plate 406, thereby keeping the direction of the gas assembly stable, and the display 408 on the digital positioning plate 407 displays the height value in real time.

[0067] At the pre-filling nitrogen filling station, when the empty vial enters below the straight-line segment gas curtain assembly 1, the gas enters the first chamber 111 through the first gas inlet 1101 of the first gas inlet pipe 110, is distributed by the multi-layer straight-line segment partition plate 12 to make the gas flow speed and pressure tend to be uniform, is then sprayed out from the plurality of straight-line segment gas needles 15, and is discharged through the first gas outlet 1102, thereby performing pre-nitrogen filling treatment on the empty vial to replace the air in the vial.

[0068] At the post-filling nitrogen filling station, the vial immediately enters below the arc-line segment gas curtain assembly 2 after completing filling, the gas enters the second chamber 211 through the second gas inlet 2101 of the second gas inlet pipe 210, is distributed by the arc-line segment partition plate 22, is then sprayed out from the arc-line segment gas needles 25 arranged in an arc-line shape, and is discharged through the second gas outlet 2102, thereby supplementing the nitrogen lost during the filling process.

[0069] At the press plug nitrogen filling station, the vial enters below the press plug gas needle assembly 3, the gas enters the third cavity 311 through the third gas inlet 3101 of the third gas inlet pipe 310, is divided after the press plug baffle 32, is sprayed from the press plug gas needle 34 arranged at a predetermined angle, and is discharged through the third gas outlet 3102, and nitrogen is continuously filled into the bottle during the press plug process, so that the final nitrogen protection is realized.

[0070] The whole nitrogen filling process is quickly completed in three stations, and the headspace residual oxygen content of the vial injection can be stably controlled within 2%. The gas supply seat assembly 5 supplies gas through the gas seat 51, purifies the gas through the filter 52, and then supplies the three gas assemblies through the conduit. When replacement or maintenance is required, each assembly can be quickly disassembled and assembled through the threaded connection structure.

[0071] In summary, the gas filling device has the following advantages:

[0072] By setting the combination structure of the linear segment gas curtain assembly, the arc segment gas curtain assembly and the press plug gas needle assembly, different shapes of packaging containers can be adapted, and omnidirectional gas filling protection can be realized. The design of the lifting assembly enables the gas filling device to accurately adjust the height position, improving the operation convenience. The filter of the gas supply seat assembly ensures the purity of the filling gas, and guarantees the protection effect of the product. In addition, through the cooperative nitrogen filling of the three stations, the headspace residual oxygen content of the vial injection can be stably controlled within 2%, which significantly improves the product quality.

[0073] In addition, through the multi-layer staggered baffle structure, the gas is turned multiple times during the flow process, ensuring the uniformity of the gas distribution; the equidistant arrangement of multiple gas needles improves the gas filling efficiency; the modular design of the gas needle assembly facilitates installation and maintenance, improving the practicality and reliability of the equipment.

[0074] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A gas filling device, characterized in that, include: A straight section gas curtain assembly (1), an arc section gas curtain assembly (2), a plug gas needle assembly (3), a lifting assembly (4), and a gas supply seat assembly (5); The straight segment gas curtain assembly (1), the arc segment gas curtain assembly (2), and the plug gas needle assembly (3) are sequentially arranged on the lifting assembly (4); The gas supply seat assembly (5) is located on one side of the lifting assembly (4); the gas supply seat assembly (5) is connected to the straight section gas curtain assembly (1), the arc section gas curtain assembly (2) and the plug gas needle assembly (3) through a conduit.

2. The gas filling device as described in claim 1, characterized in that, The straight section gas curtain assembly (1) includes: a straight section air inlet (11), a straight section partition (12), a straight section sealing plate (13), a straight section protective cover (14), and a straight section air needle (15); The top of the straight section inflation groove (11) is provided with a first air inlet pipe (110); the straight section sealing plate (13) is installed at the bottom of the straight section inflation groove (11) and forms a closed first chamber (111) with the straight section inflation groove (11); the straight section partition (12) is disposed in the first chamber (111); the straight section sealing plate (13) is located between the straight section inflation groove (11) and the straight section protective cover (14); one end of the straight section air needle (15) is installed on the straight section sealing plate (13), and the other end extends into the straight section protective cover (14); the first air inlet pipe (110), the first chamber (111) and the straight section air needle (15) are connected.

3. The gas filling device as described in claim 2, characterized in that, The arc segment gas curtain assembly (2) includes: an arc segment inflation groove (21), an arc segment partition (22), an arc segment sealing plate (23), an arc segment protective cover (24), and an arc segment air needle (25); The top of the arc-shaped inflation groove (21) is provided with a second air inlet pipe (210); the arc-shaped sealing plate (23) is installed at the bottom of the arc-shaped inflation groove (21) and forms a closed second chamber (211) with the arc-shaped inflation groove (21); the arc-shaped partition plate (22) is disposed in the second chamber (211); the arc-shaped sealing plate (23) is located between the arc-shaped inflation groove (21) and the arc-shaped protective cover (24); one end of the arc-shaped air needle (25) is installed on the arc-shaped sealing plate (23), and the other end extends into the interior of the arc-shaped protective cover (24); the second air inlet pipe (210), the second chamber (211) are connected to the arc-shaped air needle (25).

4. The gas filling device as described in claim 3, characterized in that, The gas needle assembly (3) includes a gas inlet groove (31), a gas inlet partition (32), a gas inlet sealing plate (33), and a gas needle (34); The top of the pressure plug inflation groove (31) is provided with a third air inlet pipe (310); the pressure plug sealing plate (33) is installed at the bottom of the pressure plug inflation groove (31) and forms a closed third chamber (311) with the pressure plug inflation groove (31); the pressure plug partition plate (32) is disposed in the third chamber (311); the pressure plug sealing plate (33) has a through hole for the pressure plug needle (34) to enter the air on the center line, and threaded holes for fixing the pressure plug needle (34) are provided on both sides of the through hole; the pressure plug needle (34) and the pressure plug sealing plate (33) form a predetermined angle; the third air inlet pipe (310), the third chamber (311) and the pressure plug needle (34) are connected.

5. The gas filling device as described in claim 4, characterized in that, The straight section partition (12), the arc section partition (22), and the pressure plug partition (32) are all multi-layered partitions, with through holes between adjacent layers of partitions staggered to allow the gas to flow in multiple directions.

6. The gas filling device as described in claim 4, characterized in that, There are multiple straight segment air needles (15), arc segment air needles (25) and pressure plug air needles (34), and they are arranged at equal intervals along the length and / or width directions of the straight segment sealing plate (13), the arc segment sealing plate (23) and the pressure plug sealing plate (33).

7. The gas filling device as described in claim 4, characterized in that, The first air intake pipe (110) includes a first air inlet (1101) and a first air outlet (1102); the second air intake pipe (210) includes a second air inlet (2101) and a second air outlet (2102); the third air intake pipe (310) includes a third air inlet (3101) and a third air outlet (3102).

8. The gas filling device as claimed in claim 1, characterized in that, The lifting assembly (4) includes: a base (401), a guide seat (402), a limiting rod (403), a sliding screw (404), a nut (405), an inflation assembly positioning plate (406), a digital display positioning plate (407), a display (408), a digital display connecting rod (409), an adjustment knob (410), a flat-head knob (411), and a guardrail knob (412); The guide seat (402) is fixed on the base (401); the limiting rod (403) and the sliding screw (404) are vertically arranged on the guide seat (402); the top end of the sliding screw (404) is fixedly connected to the adjusting knob (410); the nut (405) is threadedly engaged with the sliding screw (404); the inflation component positioning plate (406) is fixedly connected to the nut (405), and the inflation component positioning plate (406) is provided with A through hole through which the limiting rod (403) passes to prevent the inflatable component positioning plate (406) from rotating; a digital display positioning plate (407) is fixedly connected to the inflatable component positioning plate (406) via a digital display connecting rod (409); a display (408) is disposed on the digital display positioning plate (407); and a flat-head knob (411) and a guardrail knob (412) are disposed on the inflatable component positioning plate (406).

9. The gas filling device as claimed in claim 1, characterized in that, The gas supply seat assembly (5) includes a gas seat (51) and a filter (52); the filter (52) is disposed at the gas outlet end of the gas seat (51); the filter (52) is connected to the straight segment gas curtain assembly (1), the arc segment gas curtain assembly (2) and the plug gas needle assembly (3) through the conduit.

10. The gas filling device as claimed in claim 1, characterized in that, The straight segment gas curtain assembly (1), the arc segment gas curtain assembly (2), and the plug gas needle assembly (3) are installed on the lifting assembly (4) by threaded connection.

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