Gas filling device for food
By introducing buffer components and spring structures into the gas filling device for food, the problems of food breakage and difficulty in controlling the gas volume caused by gas filling are solved, achieving precise control and safety of gas filling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-17
AI Technical Summary
Existing food filling devices are prone to causing food to break during the inflation process, and the amount of air is difficult to control, leading to overfilling.
A gas filling device for food has been designed, comprising a buffer, a fixing groove, a sealing block and a spring structure. The buffer groove disperses the airflow to avoid excessive gas pressure, and the spring seals the vent when the airflow weakens to control the gas volume.
It effectively prevents food breakage, ensures precise control of gas volume, prevents overfilling, and improves the taste of food and work efficiency.
Smart Images
Figure CN224131362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing technology, and more specifically, to a gas filling device for food. Background Technology
[0002] In the processing of puffed foods, nitrogen is typically injected into the packaging bags to slow down oxidation, prevent moisture absorption, and maintain their crisp texture. Nitrogen is chemically stable at room temperature and does not readily react with other substances, making it widely used in food packaging. Injecting nitrogen into food bags also reduces the risk of food breakage due to collisions or vibrations within the packaging. Current food filling devices typically inject nitrogen directly into the food bags through a filling head. However, these filling heads lack a buffer structure, and due to the high filling pressure, the strong airflow during nitrogen injection can easily cause puffed foods to break, affecting their texture and taste. Furthermore, even when the gas supply stops, the remaining gas in the delivery pipe continues to fill, potentially leading to excessive filling volume. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this invention provides a gas filling device for food, which has the advantages of buffering effect and easy control of filling gas volume, and solves the problems of food breakage and difficulty in controlling filling gas volume in existing devices during the filling process.
[0005] (II) Technical Solution
[0006] To achieve the aforementioned objectives of facilitating control of the filling gas volume and preventing food breakage during gas filling, this utility model provides the following technical solution: a gas filling device for food, comprising a filling head, a fixing member on one side of the filling head, a buffer member on the fixing member, a plurality of buffer grooves evenly distributed in a circle on the buffer member, a fixing groove on one side of the fixing member, a fixing rod in the fixing groove, a sleeve rod on the fixing rod, a top plate at one end of the sleeve rod, a sealing block on one side of the top plate, a spring on the outside of the sleeve rod, a plurality of limiting blocks on the outer periphery of the top plate, and a plurality of limiting grooves on the fixing member, the number of limiting grooves being the same as the number of limiting blocks.
[0007] In an embodiment of this utility model, an air supply pipe is provided on one side of the filling head, a connector is provided on the measuring side of the filling head, a connecting pipe is provided at the bottom of the connector, and a vent hole is provided at the bottom of the connecting pipe.
[0008] In an embodiment of this utility model, the fixing member is disposed at the bottom end of the connecting pipe, the sealing block is hemispherical, the diameter of the sealing block is larger than the diameter of the vent hole, and the limiting block is slidably connected to the limiting groove.
[0009] In an embodiment of this utility model, a buffer cavity is provided inside the fixing member, the buffer member is disposed in the buffer cavity, the sleeve is sleeved on the outside of the fixing rod, the sleeve is slidably connected to the fixing rod, and the buffer member is designed as a frustum.
[0010] In an embodiment of this utility model, the spring is sleeved on the outside of the sleeve rod, and the two ends of the spring abut against the top plate and the fixing groove respectively. The diameter of the top plate is smaller than the diameter of the fixing groove.
[0011] In an embodiment of this utility model, the bottom of the fixing member is provided with multiple partition cavities, the bottom of each partition cavity is provided with an air outlet, a guide block is provided inside the partition cavity, a filling tube is provided at the bottom of the partition cavity, and a filling nozzle is provided at one end of the filling tube.
[0012] In an embodiment of this utility model, the guide block is designed in a ring shape, and the bottom end of the guide block is aligned with the air outlet.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This utility model is equipped with a buffer component, a fixing groove, a buffer groove, a sealing block, and a spring. During the gas filling process, the strong air pressure pushes the sealing block to move into the fixing groove. At this time, the airflow is dispersed and flows out from the buffer groove into the partition cavity. The airflow is dispersed, thus preventing the strong airflow from causing the food to break during filling. In addition, when the gas filling stops and the air pressure drops, the sealing block blocks the vent under the action of the spring, which can prevent the remaining gas in the gas delivery pipe from continuing to fill and can avoid the problem of excessive filling volume.
[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This utility model provides an overall structural schematic diagram of its embodiments;
[0018] Figure 2 A cross-sectional structural diagram of the fastener provided for an embodiment of this utility model;
[0019] Figure 3 A schematic diagram of the structure of the buffer provided in the embodiment of this utility model;
[0020] Figure 4 A cross-sectional structural diagram of the buffer provided for an embodiment of this utility model.
[0021] In the diagram: 10, filling head; 20, air supply pipe; 30, connector; 3001, connecting pipe; 3002, vent hole; 40, fixing component; 4001, buffer chamber; 4002, buffer component; 4003, buffer groove; 4004, fixing groove; 4005, fixing rod; 4006, sleeve rod; 4007, top plate; 4008, sealing block; 4009, limiting block; 4010, spring; 4011, limiting groove; 50, partition chamber; 5001, air outlet; 5002, guide block; 5003, filling pipe; 5004, filling nozzle. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a gas filling device for food, including a filling head 10, a fixing member 40 on one side of the filling head 10, a buffer member 4002 on the fixing member 40, a plurality of buffer grooves 4003 distributed circumferentially on the buffer member 4002, a fixing groove 4004 on one side of the fixing member 40, a fixing rod 4005 in the fixing groove 4004, a sleeve rod 4006 on the fixing rod 4005, a top plate 4007 at one end of the sleeve rod 4006, a sealing block 4008 on one side of the top plate 4007, a spring 4010 on the outside of the sleeve rod 4006, a plurality of limiting blocks 4009 on the outer periphery of the top plate 4007, a plurality of limiting grooves 4011 on the fixing member 40, the number of limiting grooves 4011 being the same as the number of limiting blocks 4009, and the limiting blocks 4009 being slidably connected to the limiting grooves 4011.
[0025] It should be noted that during the filling of gas, the strong airflow will squeeze the sealing block 4008 and move it downward into the fixing groove 4004. At this time, the gas is dispersed from the top of the sealing block 4008 and flows out into the fixing member 40 through the buffer groove 4003. During this process, the airflow is buffered. When the gas supply stops, the airflow becomes smaller. At this time, the impact of the airflow is less than the elastic potential energy of the spring 4010. Therefore, the sealing block 4008 moves upward under the action of the elastic potential energy of the spring 4010.
[0026] Preferably, a gas supply pipe 20 is provided on one side of the filling head 10, and the other end of the gas supply pipe 20 is connected to the gas delivery device. Since the gas delivery device is existing technology, it will not be described in detail in this solution. A connector 30 is provided on the filling head 10, and a connecting pipe 3001 is provided at the bottom of the connector 30. A vent hole 3002 is provided at the bottom of the connecting pipe 3001. When the gas delivery stops, the airflow decreases. At this time, the sealing block 4008 blocks the vent hole 3002 under the action of the spring 4010, which can prevent the remaining gas in the gas supply pipe 20 from continuing to fill, resulting in excessive gas filling in the food packaging bag.
[0027] Preferably, the fixing member 40 is set at the bottom end of the connecting pipe 3001, the sealing block 4008 is hemispherical, the diameter of the sealing block 4008 is larger than the diameter of the vent 3002, the sealing block 4008 is made of rubber, and the rubber has a certain elasticity, which can improve the sealing effect on the vent 3002.
[0028] Preferably, the fixing member 40 has a buffer cavity 4001 inside, the buffer member 4002 is disposed in the buffer cavity 4001, the sleeve rod 4006 is sleeved on the outside of the fixing rod 4005, the sleeve rod 4006 is slidably connected to the fixing rod 4005, the buffer member 4002 is designed as a frustum, and the setting of the fixing rod 4005 and the sleeve rod 4006 can provide a support effect for the top plate 4007, so that it can move up and down stably.
[0029] Preferably, the spring 4010 is sleeved on the outside of the sleeve rod 4006, and the two ends of the spring 4010 abut against the top plate 4007 and the fixing groove 4004 respectively. The diameter of the top plate 4007 is smaller than the diameter of the fixing groove 4004, so that the top plate 4007 can move into the fixing groove 4004. When the gas is conveyed, the top plate 4007 moves into the fixing groove 4004, and the sealing block 4008 releases the sealing effect on the vent 3002, so as to facilitate the filling of gas.
[0030] Preferably, the bottom of the fixing member 40 is provided with multiple partition cavities 50, which divide the bottom of the fixing member 40 into multiple equal parts, allowing multiple food bags to be filled at the same time, which helps to improve work efficiency. The bottom of the partition cavity 50 is provided with an air outlet 5001, and a guide block 5002 is provided inside the partition cavity 50. The bottom of the partition cavity 50 is provided with a filling tube 5003, and one end of the filling tube 5003 is provided with a filling nozzle 5004. The gas entering the partition cavity 50 enters the filling tube 5003 through the air outlet 5001. At this time, the guide block 5002 can help the gas quickly enter the filling tube 5003.
[0031] Preferably, the guide block 5002 is designed in a ring shape, and the bottom end of the guide block 5002 is aligned with the air outlet 5001.
[0032] Specifically, the working principle of this food gas filling device is as follows:
[0033] When filling puffed food with gas, the gas supply pipe 20 is first connected to the gas conveying device. Then, the conveying device is started to convey gas. During gas conveying, the strong airflow will squeeze the sealing block 4008, causing it to move downward into the fixing groove 4004. At this time, the gas disperses from the top of the sealing block 4008 and flows out through the buffer groove 4003 into the fixing member 40. During this process, the airflow is buffered, which can prevent the puffed food from breaking due to excessive air pressure, thus affecting the taste of the food. The gas then flows out into the partition chamber 50 and through the vent 5001 into the filling tube 5003, and finally into the food packaging bag through the filling nozzle 5004. When the gas supply stops, the airflow decreases. At this time, the impact of the airflow is less than the elastic potential energy of the spring 4010. Therefore, the sealing block 4008 moves upward under the action of the elastic potential energy of the spring 4010 and blocks the vent 3002, which can prevent the remaining gas in the gas supply tube 20 from continuing to fill the bag, thus preventing excessive gas from being filled into the food packaging bag.
[0034] It should be noted that the specific models and specifications of the filling head 10, sealing block 4008, spring 4010, filling tube 5003, and filling nozzle 5004 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.
[0035] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 utility model.
[0036] Furthermore, the terms "first," "second," "third," and "fourth" 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," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A food product gas filling device comprising a filling head (10), characterised in that: A fixing member (40) is provided on one side of the filling head (10). A buffer member (4002) is provided on the fixing member (40). A plurality of buffer grooves (4003) are provided on the buffer member (4002) in a circumferentially equidistant manner. A fixing groove (4004) is opened on one side of the fixing member (4004). A fixing rod (4005) is provided in the fixing groove (4004). A sleeve rod (4006) is provided on the fixing rod (4005). A top plate (4007) is provided at one end of the rod (4006), a sealing block (4008) is provided on one side of the top plate (4007), a spring (4010) is provided on the outside of the sleeve rod (4006), a plurality of limiting blocks (4009) are provided on the outer periphery of the top plate (4007), and a plurality of limiting grooves (4011) are provided on the fixing member (40), the number of limiting grooves (4011) being the same as the number of limiting blocks (4009).
2. A gas filling device for food products according to claim 1, characterized in that An air supply pipe (20) is provided on one side of the filling head (10), and a connector (30) is provided on the other side of the filling head (10). A connecting pipe (3001) is provided at the bottom of the connector (30), and a vent hole (3002) is provided at the bottom of the connecting pipe (3001).
3. A gas filling device for food products according to claim 2, characterized in that The fixing member (40) is disposed at the bottom end of the connecting pipe (3001), the sealing block (4008) is hemispherical, the diameter of the sealing block (4008) is larger than the diameter of the vent (3002), and the limiting block (4009) is slidably connected to the limiting groove (4011).
4. A gas filling device for food products according to claim 1, characterized in that The fixing member (40) has a buffer cavity (4001) inside, the buffer member (4002) is disposed in the buffer cavity (4001), the sleeve rod (4006) is sleeved on the outside of the fixing rod (4005), the sleeve rod (4006) is slidably connected to the fixing rod (4005), and the buffer member (4002) is designed as a frustum.
5. A gas filling device for food products according to claim 4, characterized in that The spring (4010) is sleeved on the outside of the sleeve rod (4006), and the two ends of the spring (4010) respectively abut against the top plate (4007) and the fixing groove (4004). The diameter of the top plate (4007) is smaller than the diameter of the fixing groove (4004).
6. A gas filling device for food products according to claim 1, characterized in that The bottom of the fixing member (40) is provided with a plurality of partition chambers (50), the bottom of the partition chamber (50) is provided with an air outlet (5001), the interior of the partition chamber (50) is provided with a guide block (5002), the bottom of the partition chamber (50) is provided with a filling tube (5003), and one end of the filling tube (5003) is provided with a filling nozzle (5004).
7. A gas filling device for food according to claim 6, characterized in that, The guide block (5002) has a ring-shaped design, and the bottom end of the guide block (5002) is aligned with the air outlet (5001).