Filling system

Abstract

The present invention relates to a filling system and a filling process wherein a filling valve is used for filling a product into a container. The filling valve comprises a valve body having a valve chamber, a feeding port and a discharge port that communicate with the valve chamber. A valve rod is mounted in the valve chamber and movable relative to the valve body in the vertical direction. The valve body is movable in the vertical direction relative to a mounting plate. The filling valve further comprises a first isolation member being provided inside the valve chamber and isolating the valve chamber into a first and second portion, the feeding and discharge port being located in the second portion. A second isolation member is provided outside the valve body and isolates the valve body into a first and second portion, the discharge port is located in the second portion.

Description

[0001] Title: FILLING SYSTEM

[0002] The invention relates to the field of filling of containers using a filling system including a filling valve.

[0003] At present, there are frequent trade exchanges between countries and regions. In order to facilitate storage, transportation and sale, it is usually necessary to package all kinds of products. For example, foods such as milk, beverages, vegetable puree, etc. need to be packaged and sealed in various forms of containers such as spouted pouches, packaging boxes and packaging bags, e.g. bag in box containers. A filling machine is usually used in the process of packaging the products, and the filling machine is responsible for filling the products into the containers.

[0004] The filling machine must be stable, efficient and clean. Specifically, in the field of food packaging, the filling machine must ensure that the amount of food filled into the container can reach a preset amount each time, and the filling machine must also ensure that the food is not contaminated during the filling process, e.g. to achieve aseptic filling.

[0005] According to the invention, a system is provided according to claim 1.

[0006] In embodiments, the filling valve passes through the mounting plate, the filling system further comprising a guide plate having a strip-shaped opening located below the discharge port of the filling valve, wherein containers are movable along the strip-shaped opening, the mounting plate and the guide plate being constructed as a top wall and a bottom wall of an aseptic chamber respectively, wherein a sterile gas guide tube is configured to continuously feed a sterile gas into the aseptic chamber, wherein the second isolation member is located in the aseptic chamber.

[0007] For example, the first isolation member is a sterilization gas barrier, and the valve body has a gas inlet and a gas outlet that communicate with the valve chamber. A sterilization gas enters the valve chamber from the gas inlet and leaves the valve chamber from the gas outlet to form the sterilization gas barrier in the valve chamber. The gas inlet and the gas outlet are both located above the feeding port relative to the vertical direction, and the valve rod is movable downward by a stroke not greater than a size (in the direction of the stroke) of the sterilization gas barrier in the vertical direction. For example, the sterilization gas is a high-temperature steam. And the gas inlet is located above the gas outlet relative to the vertical direction.

[0008] For example, the first isolation member is a first telescopic sleeve, which is sleeved on the valve rod and is extendable and retractable in the vertical direction. The first telescopic sleeve includes an upper end and a lower end in the vertical direction, wherein the upper end is fixed to a wall of the valve chamber, and the lower end is fixed to the valve rod, and the upper end is located above the feeding port relative to the vertical direction.

[0009] For example, the first isolation member includes a first sterilization gas barrier and a second sterilization gas barrier. The valve body has a first gas inlet and a first gas outlet that communicate with the valve chamber, and a first sterilization gas enters the valve chamber from the first gas inlet and leaves the valve chamber from the first gas outlet to form the first sterilization gas barrier in the valve chamber. The valve body has a second gas inlet and a second gas outlet that communicate with the valve chamber, and a second sterilization gas enters the valve chamber from the second gas inlet and leaves the valve chamber from the second gas outlet to form the second sterilization gas barrier in the valve chamber. The first gas inlet, the first gas outlet, the second gas inlet and the second gas outlet are all located above the feeding port relative to the vertical direction, and the valve rod is movable downward by a stroke not greater than a sum of a size of the first sterilization gas barrier and a size of the second sterilization gas barrier in the vertical direction.

[0010] For example, the filling valve further includes a mounting plate, wherein the second isolation member is a second telescopic sleeve, which is sleeved on the valve body and is extendable and retractable relative to the vertical direction. And the second telescopic sleeve includes an upper end and a lower end relative to the vertical direction, the upper end is fixed to the mounting plate, and the lower end is fixed to the lower end of the valve body.

[0011] For example, the filling valve further includes a double-shell connection member that includes an inner shell sleeved on the valve body and an outer shell sleeved on the inner shell, wherein the double-shell connection member includes an upper end and a lower end relative to the vertical direction, the upper end of the double-shell connection member is fixed to the mounting plate, and the upper end of the second telescopic sleeve is clamped and fixed between the inner shell and the outer shell at the lower end of the double-shell connection member. For example, the filling valve further includes a mounting plate and a gas chamber housing that is provided below the mounting plate in the vertical direction and fixed to the mounting plate, wherein the second isolation member is a further sterilization gas barrier, the gas chamber housing is sleeved on the valve body and defines a gas chamber together with the valve body. The gas chamber housing has a further gas inlet and a further gas outlet, and a sterilization gas enters the gas chamber from the further gas inlet and leaves the gas chamber from the further gas outlet to form the further sterilization gas barrier in the gas chamber. The valve body is movable relative to the gas chamber housing in the vertical direction, and the valve body is movable downward by a stroke not greater than a size of the further sterilization gas barrier in the vertical direction.

[0012] For example, the first isolation member is a sterilization gas barrier. The valve body has a gas inlet and a gas outlet that communicate with the valve chamber, and a sterilization gas enters the valve chamber from the gas inlet and leaves the valve chamber through the gas outlet to form the sterilization gas barrier in the valve chamber. The gas inlet and the gas outlet are both located above the feeding port relative to the vertical direction, and the valve rod is movable downward by a stroke not greater than a size of the sterilization gas barrier in the vertical direction. The filling valve further includes a mounting plate, and the second isolation member is a second telescopic sleeve, which is sleeved on the valve body and is extendable and retractable in the vertical direction. The second telescopic sleeve includes an upper end and a lower end in the vertical direction, wherein the upper end is fixed to the mounting plate, and the lower end is fixed to the lower end of the valve body.

[0013] For example, the first isolation member is a first telescopic sleeve, which is sleeved on the valve rod and is extendable and retractable in the vertical direction. The first telescopic sleeve includes an upper end and a lower end relative to the vertical direction, wherein the upper end is fixed to a wall of the valve chamber, the lower end is fixed to the valve rod, and the upper end is located above the feeding port relative to the vertical direction. The filling valve further includes a mounting plate, and the second isolation member is a second telescopic sleeve, which is sleeved on the valve body and is extendable and retractable in the vertical direction. The second telescopic sleeve includes an upper end and a lower end relative to the vertical direction, wherein the upper end is fixed to the mounting plate and the lower end is fixed to the lower end of the valve body.

[0014] For example, the first isolation member is a sterilization gas barrier, the valve body has a gas inlet and a gas outlet that communicate with the valve chamber, and a sterilization gas enters the valve chamber from the gas inlet and leaves the valve chamber through the gas outlet to form the sterilization gas barrier in the valve chamber. The gas inlet and the gas outlet are both located above the feeding port relative to the vertical direction, and the valve rod is movable downward by a stroke not greater than a size of the sterilization gas barrier in the vertical direction. The filling valve further includes a mounting plate and a gas chamber housing that is provided below the mounting plate relative to the vertical direction and fixed to the mounting plate, and the second isolation member is a further sterilization gas barrier. The gas chamber housing is sleeved on the valve body and defines a gas chamber together with the valve body. The gas chamber housing has a further gas inlet and a further gas outlet, and a sterilization gas enters the gas chamber from the further gas inlet and leaves the gas chamber through the further gas outlet to form the further sterilization gas barrier in the gas chamber. The valve body is movable relative to the gas chamber housing in the vertical direction, and the valve body is movable downward by a stroke not greater than a size of the further sterilization gas barrier in the vertical direction.

[0015] For example, a lower end of the valve rod has a first tapered surface, and the discharge port has a second tapered surface, and the discharge port is closed when the first tapered surface abuts against the second tapered surface. The valve body includes a main body portion and a bottom cover portion that are detachable, wherein the bottom cover portion is fixed to the main body portion so as to clamp and fix the lower end of the second telescopic sleeve between the main body portion and the bottom cover portion, and a seam between the main body portion and the bottom cover portion extends so as to intersect with the second tapered surface. The filling valve has a first sealing ring embedded in the second tapered surface, and the first sealing ring is provided at a position where the seam intersects with the second tapered surface.

[0016] For example, a lower end of the valve rod has a first tapered surface, and the discharge port has a second tapered surface, and the discharge port is closed when the first tapered surface abuts against the second tapered surface. The valve body includes a main body portion and a bottom cover portion that are detachable, the bottom cover portion is fixed to the main body portion so as to clamp and fix the lower end of the second telescopic sleeve between the main body portion and the bottom cover portion, and a seam between the main body portion and the bottom cover portion extends so as not to intersect with the second tapered surface. The filling valve has a second sealing ring, and the second sealing ring is provided at an end of the seam far away from the second isolation member. The filling valve further has a third sealing ring embedded in the first tapered surface. For example, a lower end of the valve rod has a first tapered surface, and the discharge port has a second tapered surface, and the discharge port is closed when the first tapered surface abuts against the second tapered surface. The valve body includes a main body portion and a bottom cover portion that are detachable, the bottom cover portion is fixed to the main body portion so as to clamp and fix the lower end of the second telescopic sleeve between the main body portion and the bottom cover portion, and a seam between the main body portion and the bottom cover portion extends so as not to intersect with the second tapered surface. The filling valve has a second sealing ring, and the second sealing ring is provided at an end of the seam far away from the second isolation member. The valve rod includes a metal main body portion and a polymer ring sleeved at a lower end of the metal main body portion, and a lower end face of the polymer ring forms the first tapered surface. The filling valve further has a fourth sealing ring, and the fourth sealing ring is provided between the polymer ring and the metal main body portion relative to the vertical direction.

[0017] For example, the filling valve further includes a fifth sealing ring, wherein a surface of the bottom cover portion facing the main body portion has a groove, and the lower end of the second telescopic sleeve is embedded in the groove. In the vertical direction, the fifth sealing ring is provided between a surface of the main body portion facing the bottom cover portion and the lower end of the second telescopic sleeve, and the fifth sealing ring is clamped and fixed between the main body portion and the bottom cover portion together with the lower end of the second telescopic sleeve.

[0018] For example, the filling valve further includes a gas flow passage, which is provided inside the valve rod and runs through the valve rod in the vertical direction.

[0019] For example, the filling valve further includes a gas delivery pipeline and a connection member; the connection member has a first end and a second end that are opposite to each other, and has a channel that runs through the connection member from the first end to the second end, and a cross section of the first end perpendicular to the vertical direction is smaller than that of the second end perpendicular to the vertical direction. The gas delivery pipeline is hermetically connected to the first end of the connection member, the channel of the connection member is aligned with the gas flow passage, and the second end of the connection member is hermetically connected to the valve rod.

[0020] For example, the valve body and the valve rod are both made of a metal material. Alternatively, the valve body is made of a metal material, and the valve rod is made of a polymer material. According to an embodiment, the system comprises a filling apparatus, the filling apparatus includes a plurality of filling valves as described above and a movable plate, wherein each of the plurality of filling valves passes through the movable plate and is detachably fixed to the movable plate. The movable plate is movable in the vertical direction to drive the plurality of filling valves as a whole to be movable in the vertical direction.

[0021] For example, the filling apparatus further includes a mounting plate, a perforated plate and a sterile gas guide tube, wherein in the vertical direction, the mounting plate is provided below the movable plate, the perforated plate is provided below the mounting plate, and the sterile gas guide tube is provided between the mounting plate and the perforated plate. Each of the plurality of filling valves passes through the mounting plate, and each of the plurality of filling valves passes through the perforated plate, and the perforated plate has a plurality of through holes penetrating through the perforated plate in the vertical direction. The sterile gas guide tube extends in the vertical direction and is provided with a plurality of sterile gas guide ports in its side wall.

[0022] For example, a bottom wall of the sterile gas guide tube close to the perforated plate is a substantially closed structure with only one opening.

[0023] For example, the filling apparatus further includes a sterile gas conveying tube, and the sterile gas conveying tube is hermetically connected to an end of the sterile gas guide tube close to the mounting plate, and the diameter of the sterile gas guide tube is larger than that of the sterile gas conveying tube.

[0024] For example, the filling apparatus further includes a guide plate, wherein the guide plate is provided below the perforated plate relative to the vertical direction, the mounting plate and the guide plate are constructed as a top wall and a bottom wall of an aseptic chamber respectively, and the sterile gas guide tube continuously guides a sterile gas into the aseptic chamber.

[0025] The guide plate has a strip-shaped opening, which is located just below the discharge port of the filling valve relative to the vertical direction, the container is movable along the stripshaped opening, and the sterile gas leaves the aseptic chamber via the strip-shaped opening.

[0026] For example, the plurality of filling valves are divided into at least one group, and the filling valves included in each group are arranged in two adjacent rows of filling valves, and the sterile gas guide tube is located between the two rows of filling valves. At least a portion of the perforated plate has a cross-section substantially in a V-shape in the vertical direction, and a lower vertex of the V-shape is located between the two rows of filling valves. The guide plate includes two strip-shaped openings corresponding to the two rows of filling valves respectively, at least a portion of the guide plate has a cross-section substantially in a W- shape in the vertical direction, two lower vertices of the W-shape correspond to the two stripshaped openings respectively, and an upper vertex of the W-shape is located between the two rows of filling valves.

[0027] For example, the included angle at the lower vertex of the V-shape is 170°-175°, and each of the included angles at the lower vertices and the upper vertex of the W-shape is 170°-175°.

[0028] For example, the second isolation member is located in the aseptic chamber.

[0029] According to an embodiment, the filling system includes the filling apparatus as described above, and a preheating apparatus, a sterilizing apparatus and a drying apparatus, wherein each of the preheating apparatus, the sterilizing apparatus and the drying apparatus includes an ejection valve and a mounting plate. The ejection valve includes an ejection valve body and an ejection valve rod, wherein the ejection valve body has a valve chamber and an outlet communicated with the valve chamber, the valve chamber extends in the vertical direction, and the outlet is located at a lower end of the ejection valve body in the vertical direction; the ejection valve rod is mounted in the ejection valve chamber and has a channel running through the ejection valve rod in the vertical direction, wherein the ejection valve rod is movable relative to the ejection valve body in the vertical direction, and the ejection valve body is movable in the vertical direction. And the ejection valve further includes a third isolation member and / or a fourth isolation member, wherein the third isolation member is provided inside the ejection valve chamber and isolates the ejection valve chamber into a first portion and a second portion, and the outlet is located in the second portion; the fourth isolation member is provided outside the ejection valve body and isolates the ejection valve body into a first portion and a second portion, and the outlet is located in the second portion.

[0030] For example, the third isolation member is a sterilization gas barrier, and the ejection valve body has an ejection valve gas inlet and an ejection valve gas outlet that communicate with the ejection valve chamber. A sterilization gas enters the ejection valve chamber from the ejection valve gas inlet and leaves the ejection valve chamber from the ejection valve gas outlet to form the sterilization gas barrier in the ejection valve chamber. And the ejection valve rod is movable downward by a stroke not greater than the size of the sterilization gas barrier in the vertical direction. The fourth isolation member is a third telescopic sleeve, which is sleeved on the ejection valve body and is extendable and retractable in the vertical direction. And the third telescopic sleeve includes an upper end and a lower end in the vertical direction, wherein the upper end is fixed to the mounting plate of the preheating apparatus, sterilizing apparatus and / or drying apparatus and the lower end is fixed to the lower end of the ejection valve body.

[0031] For example, the filling system includes a plurality of mounting plates, which are independent of one another and provided in series in the filling apparatus, the preheating apparatus, the sterilizing apparatus and the drying apparatus respectively. Alternatively, the mounting plates form a single body mounting plate. Preferably, the filling system includes a plurality of perforated plates, which are provided in series in the filling apparatus, the preheating apparatus, the sterilizing apparatus and the drying apparatus respectively. The filling system includes a plurality of guide plates, which are provided in series in the filling apparatus, the preheating apparatus, the sterilizing apparatus and the drying apparatus respectively. And in the vertical direction, the movable plate, the mounting plate, the perforated plate and the guide plate are sequentially provided from top to bottom in each of the filling apparatus, the preheating apparatus, the sterilizing apparatus and the drying apparatus.

[0032] In order to more clearly illustrate the technical solutions of the invention, the drawings of the embodiments will be briefly described below. Obviously, the drawings in the following description relate only to some embodiments and are not a limitation of the present invention.

[0033] The present invention also relates to a filling valve as described herein, and a filling apparatus as described herein.

[0034] The present invention further relates to a filling process wherein use is made of a filling system as described above. In embodiments, containers are moved along the strip-shaped opening of the guide plate and wherein filling valves pass through the mounting plate to fill product into the containers, wherein the first isolation member isolates the second portion of the valve chamber from the first portion of the valve chamber, and wherein the second isolation member isolates the second portion of the valve body from the first portion of the valve body.

[0035] Fig. 1 A is a first structural schematic view of a filling valve;

[0036] Fig. 1 B is a simplified schematic view of a portion A1 of the filling valve in Fig. 1 A; Fig. 1C is a simplified schematic view of a portion A2 of the filling valve in Fig. 1A; Fig. 2A is a second structural schematic view of a filling valve; Fig. 2B is a simplified schematic view of a portion A3 of the filling valve in Fig. 2A;

[0037] Fig. 3A is a third structural schematic view of a filling valve;

[0038] Fig. 3B is a simplified schematic view of a portion A4 of the filling valve in Fig. 3A;

[0039] Fig. 4 is a schematic sectional view of a double-shell connection member in a filling valve; Fig. 5A is a fourth structural schematic view of a filling valve;

[0040] Fig. 5B is a simplified schematic view of a portion A5 of the filling valve in Fig. 5A; Fig. 6A is a first partial structural schematic view of a discharge port of a filling valve; Fig. 6B is a second partial structural schematic view of a discharge port of a filling valve; Fig. 6C is a third partial structural schematic view of a discharge port of a filling valve; Fig. 7 is a structural schematic view of a gas delivery pipeline and a connection member in a filling valve;

[0041] Fig. 8A is a structural schematic view of a filling apparatus;

[0042] Fig. 8B is a simplified schematic view of the bottom wall of a sterile gas guide tube in a filling apparatus;

[0043] Fig. 9 is a structural schematic view of a filling system;

[0044] Fig. 10A is a first structural schematic view of an ejection valve in a filling system; and Fig. 10B is a second structural schematic view of the ejection valve in the filling system.

[0045] According to an embodiment, there is provided a filling valve for filling a product into a container. The product is, for example, food such as milk, beverages, vegetable puree and the like. Fig. 1A is a first structural schematic view of a filling valve according to an embodiment, Fig. 2A is a second structural schematic view of a filling valve according to an embodiment, Fig. 3A is a third structural schematic view of a filling valve according to an embodiment, and Fig. 5A is a fourth structural schematic view of a filling valve according to an embodiment. Referring to Fig. 1A, Fig. 2A, Fig. 3A and Fig. 5A, a filling valve according to an embodiment includes a valve body 100 and a valve rod 120, the valve body 100 has a valve chamber 110, a feeding port 111 and a discharge port 112 that communicate with the valve chamber 110, the valve chamber 110 extends in a vertical direction D, and the discharge port 112 is located at a lower end of the valve body 100 relative to the vertical direction D; the valve rod 120 is mounted in the valve chamber 110; wherein the valve rod 120 is movable relative to the valve body 100 in the vertical direction D, and the valve body 100 is movable in the vertical direction D. And the filling valve further includes a first isolation member 130 and, optionally, a second isolation member 140, wherein the first isolation member 130 is provided inside the valve chamber 110 and isolates the valve chamber 110 into a first portion 110-1 and a second portion 110-2, and the feeding port 111 and the discharge port 112 are located in the second portion 110-2; the second isolation member 140 is provided outside the valve body 100 and isolates the valve body 100 into a first portion 100-1 and a second portion 100-2, and the discharge port 112 is located in the second portion 100-2.

[0046] For example, the product enters the valve chamber 110 from the feeding port 111 and leaves the valve chamber 110 through the discharge port 112 to be filled into a container (for example, the spouted pouch 520 shown in Fig. 8A). In Fig. 1A, Fig. 2A, Fig. 3A and Fig. 5A, the pipeline 111a connected to the feeding port 111 is a pipeline for conveying the product.

[0047] The valve rod 120 is movable by an actuator 125 relative to the valve body 100 in the vertical direction D. For example, the valve rod 120 is movable downward relative to the valve body 100 in the vertical direction D, and the valve rod 120 is adapted to close the discharge port 112, so that the product cannot leave the valve chamber 110 through the discharge port 112 such that the filling stops. For example, the valve rod 120 is moved upward relative to the valve body 100 in the vertical direction D, and the valve rod 120 no longer closes the discharge port 112, so that the product leaves the valve chamber 110 through the discharge port 112 and enters the container, and the filling is carried out. During an upward and downward movement of the valve rod 120 in the vertical direction D, bacteria may be brought into the product that has entered the valve chamber 110 (for example, when the valve rod 120 moves upward, an upper end of the valve rod 120 moves out of the valve chamber 110 and carries or may collect bacteria, and then the bacteria can enter the valve chamber 110 with the upper end of the valve rod 120 when the valve rod 120 moves downward), resulting in contamination of the product. In order to avoid such a situation, the filling valve according to an embodiment includes a first isolation member 130 that is provided in the valve chamber 110 and isolates the valve chamber 110 into a first portion 110-1 and a second portion 110-2, and the feeding port 111 and the discharge port 112 are located in the second portion 110-2. Since the feeding port 111 and the discharge port 112 are located in the second portion 110- 2, the product entering the valve chamber 110 will be located in the second portion 110-2 of the valve chamber 110. By providing the first isolation member 130, it is possible to isolate the first portion 110-1 of the valve chamber 110 from the product located in the second portion 110-2 of the valve chamber, thereby ensuring that the bacteria in the first portion 110- 1 of the valve chamber 110 will not reach the product in the second portion 110-2 of the valve chamber 110. The first isolation member 130 ensures the sterility of the second portion 110-2 of the valve chamber 110, so that even if the valve rod 120 is moved up and down, there is no contamination of the product entering the valve chamber 110. For example, in the vertical direction, the first portion 110-1 is at least partially located above the second portion 110-2. For example, the first isolation member 130 isolates the feeding port 111 and the discharge port 112 from the upper region of the valve chamber 110, thereby isolating all product from what has entered the valve chamber 100 from the upper region of the valve chamber 110. By providing the first isolation member 130, the upper region of the valve chamber 110 is isolated from the lower region of the valve chamber 110 including the feeding port 111 and the discharge port 112, thereby ensuring the sterility of the lower region of the valve chamber 110 including the feeding port 111 and the discharge port 112, so that even if the valve rod 120 is movable up and down, there is no contamination of the product entering the valve chamber 110.

[0048] It should be noted that in the embodiments, the first isolation member 130 “isolates” the valve chamber 110 into a first portion 110-1 and a second portion 110-2, which means that the bacteria reaching the first portion 110-1 are isolated to the extent that they cannot enter the second portion 110-2. Therefore, the bacteria in the first portion 110-1 will not contaminate the product in the second portion 110-2, thereby ensuring the implementation of aseptic filling.

[0049] According to the embodiments, the valve body 100 is moveable in the vertical direction D; in this way, the distance between the discharge port 112 of the filling valve and the container can be adjusted to the most suitable distance for the product to enter the container according to the actual filling situation, and thus the flexibility and controllability of the filling valve according to the embodiments are improved. During the upward and downward movement of the valve body 100 in the vertical direction, bacteria may be brought to the discharge port 112, which causes contamination of the product. In order to avoid this situation, the filling valve according to an embodiment includes a second isolation member 140, the second isolation member 140 is provided outside the valve body 100 and isolates the valve body 100 into a first portion 100-1 and a second portion 100-2, and the discharge port 112 is located in the second portion 100-2. Since the discharge port 112 is located in the second portion 100- 2, by providing the second isolation member 140, the first portion 100-1 of the valve body 100 can be isolated from the discharge port 112, thereby ensuring that bacteria in the first portion 100-1 of the valve body 100 will not reach the discharge port 112. The second isolation member 140 ensures sterility at the position of the discharge port 112, so that even if the valve body 100 is movable up and down, there is no contamination of the product to be filled into the container. For example, in the vertical direction, the first portion 100-1 is at least partially located above the second portion 100-2. For example, the second isolation member 140 isolates the region of the valve body 100 other than the discharge port 112 from the external environment. The “external environment” here refers to the aseptic chamber described below with reference to Fig. 8A. By providing the second isolation member 140, the discharge port 112 is exposed to the aseptic chamber, and the region of the valve body 100 other than the discharge port 112 is isolated from the aseptic chamber, thereby ensuring the sterility at the position of the discharge port 112, so that even if the valve body 100 is movable up and down, there is no contamination of the product to be filled into the container.

[0050] It should be noted that in an embodiment, the second isolation member 140 “isolates” the valve body 100 into a first portion 100-1 and a second portion 100-2, which means that bacteria reaching the first portion 100-1 are isolated to the extent that they cannot enter the second portion 100-2. Therefore, the bacteria in the first portion 100-1 will not contaminate the product at the position of the discharge port 112, thereby ensuring the implementation of aseptic filling.

[0051] According to the embodiments, the valve rod 120 is movable relative to the valve body 100 in the vertical direction D, and the valve body 100 is movable in the vertical direction D, that is, the filling valve according to the embodiments has two independently controllable strokes, so that the filling valve according to the embodiments is more flexible and appliable to various scenarios, and it can be used for filling different types of products into containers of different specifications to meet the diverse requirements of users. Further, considering that two independent strokes may have the risk of introducing bacteria and thus contaminating the product, the filling valve according to the embodiments further includes the first isolation member 130 and the second isolation member 140, thereby ensuring that the filling valve according to the embodiments can still achieve aseptic filling in the case of having two strokes.

[0052] The embodiments do not limit the specific structures of the first isolation member 130 and the second isolation member 140, as long as they can meet the isolation requirements mentioned above.

[0053] Fig. 1 B is a simplified schematic view of a portion A1 of the filling valve in Fig. 1 A. It should be noted that for Fig. 1 B and subsequent simplified schematic views, i.e., Fig. 1C, Fig. 2B, Fig. 3B and Fig. 5B, the relevant components are depicted in a minimalist manner in order to help understanding the present invention, while the specific structures of the relevant components are ignored. Referring to Figs. 1A and 1 B, for example, the first isolation member 130 is a sterilization gas barrier, and the valve body 100 has a gas inlet 131 and a gas outlet 132 that communicate with the valve chamber 110. A sterilization gas enters the valve chamber 110 from the gas inlet 131 and leaves the valve chamber 110 from the gas outlet 132 to form the sterilization gas barrier in the valve chamber 110. The gas inlet 131 and the gas outlet 132 are both located above the feeding port 111 relative to the vertical direction D, and the valve rod 120 is movable downward by a stroke not greater than the size of the sterilization gas barrier in the vertical direction D. In this way, the second portion 110-2 of the valve chamber 110 is kept as a sterile region, and even if the valve rod 120 moves up and down, bacteria in the first portion 110-1 of the valve chamber 110 will not be brought into the second portion 110-2 of the valve chamber 110, thereby ensuring the sterility of the second portion 110-2 of the valve chamber 110 and of the product contained therein. In addition, the sterilization gas barrier is used as the first isolation member 130, so that the cost is low and the impact to the product is small. For example, the sterilization gas may be any gas with sterilization performance, and the embodiments do not limit the specific type of the sterilization gas. For example, the sterilization gas may be high-temperature steam, vaporized hydrogen peroxide, etc.

[0054] Further, according to an embodiment, the sterilization gas is high-temperature steam; and the gas inlet 131 is located above the gas outlet 132 relative the vertical direction D. The high- temperature steam is easy to obtain, environmentally friendly and low in cost. For example, the temperature of the high-temperature steam is higher than or equal to 130 degrees Celsius. In the case where the sterilization gas is high-temperature steam, the gas inlet 131 is provided above the gas outlet 132 in the vertical direction D, and the gas outlet 132 can also be used as a condensed water outlet, so that the condensed water generated during the circulation of the high-temperature steam (for example, the condensed water formed when the high-temperature steam comes into contact with the wall of the valve chamber 110) can be conveniently discharged out of the valve chamber 110, and the condensed water is prevented from falling down and dropping into the product inside the valve chamber 110.

[0055] Fig. 2B is a simplified schematic view of a portion A3 of the filling valve in Fig. 2A. Referring to Figs. 2A and 2B, for example, the first isolation member 130 is a first telescopic sleeve, which is sleeved on the valve rod 120 and is extendable and retractable in the vertical direction D. The first telescopic sleeve includes an upper end 13011 and a lower end 130L relative to the vertical direction D, wherein the upper end 13011 is fixed to the wall of the valve chamber 110 and the lower end 130L is fixed to the valve rod 120, and the upper end 13011 is located above the feeding port 111 in the vertical direction D. Referring to Fig. 2B, the first telescopic sleeve retracts as the valve rod 120 moves upward in the vertical direction D, and the first telescopic sleeve extends as the valve rod 120 moves downward relative to the vertical direction D. Thus, the first portion 110-1 and the second portion 110-2 of the valve chamber 110 are always isolated from each other by the first isolation member 130, thereby ensuring the sterility of the second portion 110-2 of the valve chamber 110. For example, the lower end 130L is also located above the feeding port 111 in the vertical direction D, so that the first telescopic sleeve can be prevented from catching part of the product (for example, particles in the product) during its extension and retraction.

[0056] Fig. 3B is a simplified schematic view of a portion A4 of the filling valve in Fig. 3A. Referring to Figs. 3A and 3B, for example, the first isolation member 130 includes a first sterilization gas barrier 130a and a second sterilization gas barrier 130b, and the valve body 100 has a first gas inlet 131a and a first gas outlet 132a that communicate with the valve chamber 110. A first sterilization gas enters the valve chamber 110 from the first gas inlet 131a and leaves the valve chamber 110 through the first gas outlet 132a to form the first sterilization gas barrier 130a in the valve chamber 110. The valve body 100 has a second gas inlet 131b and a second gas outlet 132b that communicate with the valve chamber 110, and a second sterilization gas enters the valve chamber 110 from the second gas inlet 131b and leaves the valve chamber 110 through the second gas outlet 132b to form the second sterilization gas barrier 130b in the valve chamber 110. The first gas inlet 131a, the first gas outlet 132a, the second gas inlet 131b and the second gas outlet 132b are all located above the feeding port 111 relative to the vertical direction D, and the valve rod 120 is movable downward by a stroke that is not greater than the sum of the sizes of the first sterilization gas barrier 130a and the second sterilization gas barrier 130b in the vertical direction D. In this way, the second portion 110-2 of the valve chamber 110 is kept as a sterile region, and even if the valve rod 120 moves up and down, bacteria in the region (i.e., the first portion 110-1) of the valve chamber 110 above the first isolation member 130 will not be brought into the region (i.e., the second portion 110-2) of the valve chamber 110 below the first isolation member 130, thereby ensuring sterility of the product in the valve chamber 110. For example, the first sterilization gas is different from the second sterilization gas, and the combination of the first sterilization gas and the second sterilization gas can stably and effectively kill various bacteria, thereby improving the overall sterilization performance of the first sterilization gas barrier 130a and the second sterilization gas barrier 130b. For example, in the vertical direction D, the first sterilization gas of the upper first sterilization gas barrier 130a is vaporized hydrogen peroxide, and the second sterilization gas of the lower second sterilization gas barrier 130b is high-temperature steam.

[0057] Compared with the case where the first isolation member 130 in Fig. 2B is the first telescopic sleeve, the sterilization gas barrier is used as the first isolation member 130 in Figs. 1B and 3B, the following beneficial effects can be achieved: (1) when the product to be filled into the container contains particles, the first telescopic sleeve is prone to entrain particles during its extension and retraction, thereby affecting the stroke of the subsequent extension and retraction movement, and the extension and retraction movement of the first telescopic sleeve may cause particles to be broken, thereby affecting the quality and uniformity of the product to be filled into the container, whereas by adopting the sterilization gas barrier as the first isolating member 130, the above problem does not exist; (2) by adopting the sterilization gas barrier as the first isolation member 130, more space will be saved, thereby facilitating the provision of other components, and contributing to a more compact overall structure of the filling valve; (3) adopting the sterilization gas barrier as the first isolation member 130 can be achieved more easily, whereas adopting the first telescopic sleeve as the first isolation member 130 may increase the assembly complexity.

[0058] Fig. 1C is a simplified schematic view of a portion A2 of the filling valve in Fig. 1A. Referring to Figs. 1A and 1 C, for example, the filling valve according to an embodiment further includes a mounting plate 300, wherein the second isolation member 140 is a second telescopic sleeve, which is sleeved on the valve body 100 and is extendable and retractable in the vertical direction D. The second telescopic sleeve includes an upper end 14011 and a lower end 140L relative to the vertical direction D, wherein the upper end 14011 is fixed to the mounting plate 300 and the lower end 140L is fixed to a lower end of the valve body 100. Referring to Fig. 1 C, the second telescopic sleeve retracts as the valve body 100 moves upward in the vertical direction D, and the second telescopic sleeve extends as the valve body 100 moves downward in the vertical direction D. Therefore, the first portion 100-1 and the second portion 100-2 of the valve body 100 are always isolated from each other by the second isolation member 140, thereby ensuring the sterility at the discharge port 112. As described below, the mounting plate 300 and a guide plate 500 are constructed as a top wall and a bottom wall of the aseptic chamber SC respectively. In this case, the second isolation member 140 is located in the aseptic chamber SC, thereby ensuring the sterility at the discharge port 112 and ensuring that the second isolation member 140 is able to fulfill its function without occupying too much space.

[0059] Fig. 4 is a schematic cross-sectional view of a double-shell connection member in a filling valve according to an embodiment. Referring to Fig. 1A, Fig. 2A, Fig. 3A and Fig. 4, for example, the filling valve according to the embodiment further includes a double-shell connection member 160, the double-shell connection member 160 includes an inner shell 161 sleeved on the valve body 100 and an outer shell 162 sleeved on the inner shell 161, wherein the double-shell connection member 160 includes an upper end and a lower end relative to the vertical direction D; the upper end of the double-shell connection member 160 is fixed to the mounting plate 300, and the upper end 14011 of the second telescopic sleeve is clamped and fixed between the inner shell 161 and the outer shell 162 at the lower end of the doubleshell connection member 160. Compared with the case where the upper end 14011 of the second telescopic sleeve is directly fixed to the mounting plate 300, in the case of providing the double-shell connection member 160, the double-shell connection member 160 is fixed to the mounting plate 300, and then the upper end 14011 of the second telescopic sleeve is connected to the double-shell connection member 160, so that the assembly difficulty of the second telescopic sleeve can be reduced, thus the second telescopic sleeve may be fixed more stably, and thus the implementation of the second isolation member 140 is simpler and more stable.

[0060] Fig. 5B is a simplified schematic view of a portion A5 of the filling valve in Fig. 5A. Referring to Figs. 5A and 5B, the filling valve according to an embodiment further includes a mounting plate 300 and a gas chamber housing 150 that is provided below the mounting plate 300 relative to the vertical direction D and fixed to the mounting plate 300, wherein the second isolation member 140 is a further sterilization gas barrier. The gas chamber housing 150 is sleeved on the valve body 100 and defines a gas chamber together with the valve body 100. The gas chamber housing 150 has a further gas inlet 151 and a further gas outlet 152, and a sterilization gas enters the gas chamber from the further gas inlet 151 and leaves the gas chamber through the further gas outlet 152 to form said further sterilization gas barrier in the gas chamber. The valve body 100 is movable relative to the gas chamber housing 150 in the vertical direction D, and the valve body 100 is movable downward by a stroke not greater than the size of said further sterilization gas barrier in the vertical direction D. In this way, the second portion 100-2 of the valve body 100 is kept as a sterile region, and even if the valve body 100 moves up and down, bacteria located in the first portion 100-1 of the valve body 100 will not be brought into the second portion 100-2 of the valve body 100, thereby ensuring the sterility at the discharge port 112. In addition, by adopting the sterilization gas barrier as the second isolation member 140, the space is saved, the implementation is easy and the cost is low. For example, the sterilization gas may be any gas with sterilization performance, and the embodiments do not limit the specific type of the sterilization gas. For example, the sterilization gas may be high-temperature steam, vaporized hydrogen peroxide, etc.

[0061] For example, the first isolation member 130 shown in Fig. 1B, Fig. 2B and Fig. 3B may be used in the filling valve according to the embodiments in cooperation with the second isolation member 140 shown in Fig. 1C.

[0062] For example, referring to Fig. 1A, in the filling valve according to the embodiment, the first isolation member 130 is a sterilization gas barrier, the valve body 100 has a gas inlet 131 and a gas outlet 132 that communicate with the valve chamber 110. A sterilization gas enters the valve chamber 110 from the gas inlet 131 and leaves the valve chamber 110 through the gas outlet 132 to form a sterilization gas barrier in the valve chamber 110. The gas inlet 131 and the gas outlet 132 are both located above the feeding port 111 relative to the vertical direction D, and the valve rod 120 is movable downward by a stroke not greater than the size of the sterilization gas barrier in the vertical direction D. Still referring to Fig. 1A, the filling valve further includes a mounting plate 300, and the second isolation member 140 is a second telescopic sleeve, which is sleeved on the valve body 100 and is extendable and retractable in the vertical direction D. The second telescopic sleeve includes an upper end 14011 and a lower end 140L relative to the vertical direction D, wherein the upper end 14011 is fixed to the mounting plate 300 and the lower end 140L is fixed to the lower end of the valve body 100.

[0063] For example, referring to Fig. 2A, in the filling valve according to the embodiment, the first isolation member 130 is a first telescopic sleeve, which is sleeved on the valve rod 120 and is extendable and retractable in the vertical direction D. The first telescopic sleeve includes an upper end 13011 and a lower end 130L relative to the vertical direction D, wherein the upper end 130U is fixed to the wall of the valve chamber 110, and the lower end 130L is fixed to the valve rod 120, and the upper end 13011 is located above the feeding port 111 relative to the vertical direction D. Still referring to Fig. 2A, the filling valve further includes a mounting plate 300, and the second isolation member 140 is a second telescopic sleeve, which is sleeved on the valve body 100 and is extendable and retractable in the vertical direction D. The second telescopic sleeve includes an upper end 14011 and a lower end 140L relative to the vertical direction D, wherein the upper end 14011 is fixed to the mounting plate 300 and the lower end 140L is fixed to the lower end of the valve body 100.

[0064] For example, referring to Fig. 3A, in the filling valve according to the embodiment, the first isolation member 130 includes a first sterilization gas barrier 130a and a second sterilization gas barrier 130b, and the valve body 100 has a first gas inlet 131a and a first gas outlet 132a that communicate with the valve chamber 110. A first sterilization gas enters the valve chamber 110 from the first gas inlet 131a and leaves the valve chamber 110 through the first gas outlet 132a to form a first sterilization gas barrier 130a in the valve chamber 110. The valve body 100 has a second gas inlet 131b and a second gas outlet 132b that communicate with the valve chamber 110, and a second sterilization gas enters the valve chamber 110 from the second gas inlet 131b and leaves the valve chamber 110 through the second gas outlet 132b to form the second sterilization gas barrier 130b in the valve chamber 110. The first gas inlet 131a, the first gas outlet 132a, the second gas inlet 131b and the second gas outlet 132b are all located above the feeding port 111 relative to the vertical direction D, and the valve rod 120 is movable downward in the vertical direction D by a stroke that is not greater than the sum of the sizes of the first sterilization gas barrier 130a and the second sterilization gas barrier 130b. Still referring to Fig. 3A, the filling valve further includes a mounting plate 300, and the second isolation member 140 is a second telescopic sleeve, which is sleeved on the valve body 100 and is extendable and retractable in the vertical direction D. The second telescopic sleeve includes an upper end 14011 and a lower end 140L relative to the vertical direction D, wherein the upper end 14011 is fixed to the mounting plate 300 and the lower end 140L is fixed to the lower end of the valve body 100.

[0065] For example, the first isolation member 130 shown in Fig. 1B, Fig. 2B and Fig. 3B may be used in the filling valve according to the embodiments in cooperation with the second isolation member 140 shown in Fig. 5B. As an example, the filling valve in Fig. 5A combines the first isolation member 130 of Fig. 1 B and the second isolation member 140 of Fig. 5B. Referring to Fig. 5A, in the filling valve according to the embodiment, the first isolation member 130 is a sterilization gas barrier, the valve body 100 has a gas inlet 131 and a gas outlet 132 that communicate with the valve chamber 110. A sterilization gas enters the valve chamber 110 from the gas inlet 131 and leaves the valve chamber 110 through the gas outlet 132 to form a sterilization gas barrier in the valve chamber 110. The gas inlet 131 and the gas outlet 132 are both located above the feeding port 111 relative to the vertical direction D, and the valve rod 120 is movable downward by a stroke not greater than the size of the sterilization gas barrier in the vertical direction D. Still referring to Fig. 5B, the filling valve according to the embodiment further includes a mounting plate 300 and a gas chamber housing 150 that is provided below the mounting plate 300 relative to the vertical direction D and fixed to the mounting plate 300, wherein the second isolation member 140 is a further sterilization gas barrier. The gas chamber housing 150 is sleeved on the valve body 100 and defines a gas chamber together with the valve body 100. The gas chamber housing 150 has a further gas inlet 151 and a further gas outlet 152, and a sterilization gas enters the gas chamber from the further gas inlet 151 and leaves the gas chamber through the further gas outlet 152 to form said further sterilization gas barrier in the gas chamber. The valve body 100 is movable relative to the gas chamber housing 150 in the vertical direction D, and the valve body 100 is movable downward by a stroke not greater than the size of said further sterilization gas barrier in the vertical direction D. By adopting a sterilization gas barrier as the first isolation member 130 and adopting a further sterilization gas barrier as the second isolation member 140, the advantages of the sterilization gas barriers are fully utilized, the space is saved, the implementation is easy and the cost is low.

[0066] Fig. 6A is a first partial structural schematic view at a discharge port of the filling valve according to an embodiment. Referring to Fig. 6A, in the filling valve according to the embodiment, the lower end of the valve rod 120 has a first tapered surface 120S, and the discharge port 112 has a second tapered surface 112S, and the discharge port 112 is closed when the first tapered surface 120S s against the second tapered surface 112S. The valve body 100 includes a main body portion 101 and a bottom cover portion 102 that are detachable, the bottom cover portion 102 is fixed to the main body portion 101 so as to clamp and fix the lower end 140L of the second telescopic sleeve between the main body portion 101 and the bottom cover portion 102, and a seam S1 between the main body portion 101 and the bottom cover portion 102 extends so as to intersect with the second tapered surface 112S. The filling valve has a first sealing ring R1 embedded in the second tapered surface 112S, and the first sealing ring R1 is provided at a position where the seam S1 intersects with the second tapered surface 112S. In order to stably fix the lower end 140L of the second telescopic sleeve to the valve body 100, the valve body 100 according to the embodiment includes a main body portion 101 and a bottom cover portion 102 that are detachable, and the lower end 140L of the second telescopic sleeve may be stably clamped and fixed between the main body portion 101 and the bottom cover portion 102 after the bottom cover portion 102 is fixed to the main body portion 101. In the embodiment, the management of various gaps of the valve body 100 should also be very strict to prevent that bacteria enter the valve chamber 110 via gaps such to contaminate product. Still referring to Fig. 6A, the first sealing ring R1 is provided at a position where the seam S1 intersects with the second tapered surface 112S, so that the seam S1 can be sealed, and bacteria are prevented from entering the valve chamber 110 via the seam S1, thereby ensuring the implementation of aseptic filling. Further, referring to Fig. 6A, the first sealing ring R1 is embedded in the second tapered surface 112S and is made of polymer material. In this case, since the first sealing ring R1 is embedded in the second tapered surface 112S, it is possible to improve the sealing performance between the first tapered surface 120S and the second tapered surface 112S by means of the flexibility of the polymer material, so that the discharge port 112 can be sealed more stably in the event that it is necessary to seal the discharge port 112. For example, the first sealing ring R1 may be embedded in the first tapered surface 120S, thus, in comparison, it is simple to assemble and convenient for maintenance by embedding the first sealing ring R1 in the second tapered surface 112S.

[0067] Fig. 6B is a second partial structural schematic view at a discharge port of the filling valve according to an embodiment. Referring to Fig. 6B, in the filling valve according to the embodiment, the lower end of the valve rod 120 has a first tapered surface 120S, and the discharge port 112 has a second tapered surface 112S, and the discharge port 112 is closed when the first tapered surface 120S abuts against the second tapered surface 112S. The valve body 100 includes a main body portion 101 and a bottom cover portion 102 that are detachable, the bottom cover portion 102 is fixed to the main body portion 101 so as to clamp and fix the lower end 140L of the second telescopic sleeve between the main body portion 101 and the bottom cover portion 102, and a seam S1 between the main body portion 101 and the bottom cover portion 102 extends so as not to intersect with the second tapered surface 112S. The filling valve has a second sealing ring R2, which is provided at an end of the seam S1 far away from the second isolation member 140. The filling valve further has a third sealing ring R3 embedded in the first tapered surface 120S. In Fig. 6B, the lower end 140L of the second telescopic sleeve may be stably clamped and fixed between the main body portion 101 and the bottom cover portion 102 after the bottom cover portion 102 is fixed to the main body portion 101. In Fig. 6B, the seam S1 between the main body portion 101 and the bottom cover portion 102 extends so as not to intersect with the second tapered surface 112S; compared with Fig. 6A, it is impossible for the seam S1 in the structure of Fig. 6B to extend into the valve chamber 110, thereby better preventing bacteria from entering the valve chamber 110 via the seam S1. The second sealing ring R2 is provided at the end of the seam S1 far away from the second isolation member 140 in order to seal the seam S1, thereby preventing bacteria from breeding in the seam S1. In addition, in Fig. 6B, compared with the case where the third sealing ring R3 is embedded in the second tapered surface 112S, it is easier to realize that the third sealing ring R3 is embedded in the first tapered surface 120S.

[0068] Fig. 6C is a third partial structural schematic view at a discharge port of the filling valve according to an embodiment. Referring to Fig. 6C, in the filling valve according to the embodiment, the lower end of the valve rod 120 has a first tapered surface 120S, and the discharge port 112 has a second tapered surface 112S, and the discharge port 112 is closed when the first tapered surface 120S abuts against the second tapered surface 112S. The valve body 100 includes a main body portion 101 and a bottom cover portion 102 that are detachable, the bottom cover portion 102 is fixed to the main body portion 101 so as to clamp and fix the lower end 140L of the second telescopic sleeve between the main body portion 101 and the bottom cover portion 102, and a seam S1 between the main body portion 101 and the bottom cover portion 102 extends so as not to intersect with the second tapered surface 112S. The filling valve has a second sealing ring R2, which is provided at an end of the seam S1 far away from the second isolation member 140. The valve rod 120 includes a metal main body portion 121 and a polymer ring 122 sleeved at a lower end of the metal main body portion 121, and a lower end face of the polymer ring 122 forms a first tapered surface 120S. The filling valve further has a fourth sealing ring R4 that is provided between the polymer ring 122 and the metal main body portion 121 relative to the vertical direction D. Same as Fig. 6B, in Fig. 6C, the lower end 140L of the second telescopic sleeve may be stably clamped and fixed between the main body portion 101 and the bottom cover portion 102 after the bottom cover portion 102 is fixed to the main body portion 101, and it is impossible for the seam S1 to extend into the valve chamber 110 so as to better prevent bacteria from entering the valve chamber 110 via the seam S1 , and the second sealing ring R2 seals the seam S1 to prevent bacteria from breeding in the seam S1. In addition, in Fig. 6C, the valve rod 120 includes a metal main body portion 121 and a polymer ring 122 sleeved at a lower end of the metal main body portion 121 , and a lower end face of the polymer ring 122 forms a first tapered surface 120S. In this way, it is possible to improve the sealing performance between the first tapered surface 120S and the second tapered surface 112S by means of the flexibility of the polymer material used to make the polymer rings, so that the discharge port 112 may be sealed more stably in the event that it is necessary to seal the discharge port 112. For example, the polymer rings are made of polyether ether ketone. In addition, in Fig. 6C, the filling valve further has a fourth sealing ring R4 that is provided between the polymer ring 122 and the metal main body portion 121 in the vertical direction D. By providing the fourth sealing ring R4, it is possible to assemble the polymer ring 122 and the metal main body portion 121 together more tightly.

[0069] Further, for example, referring to Fig. 6A, Fig. 6B and Fig. 6C, the filling valve according to the embodiment further includes a fifth sealing ring R5, wherein a surface of the bottom cover portion 102 facing the main body portion 101 has a groove 102G, and the lower end 140L of the second telescopic sleeve is embedded in the groove 102G. In the vertical direction D, the fifth sealing ring R5 is provided between the surface of the main body portion 101 facing the bottom cover portion 102 and the lower end 140L of the second telescopic sleeve, and is clamped and fixed between the main body portion 101 and the bottom cover portion 102 together with the lower end 140L of the second telescopic sleeve. By providing the groove 102G, it is convenient to fix the lower end 140L of the second telescopic sleeve more stably. By providing the fifth sealing ring R5, it is possible to assemble the main body portion 101 and the bottom cover portion 102 together more tightly, and seal the end of the seam S1 so as to prevent bacteria from breeding in the seam S1.

[0070] For example, referring to Fig. 6A, Fig. 6B and Fig. 6C, the filling valve according to the embodiment further includes a gas flow passage 123, the gas flow passage 123 is provided within the valve rod 120 and runs through the valve rod 120 in the vertical direction D. In the process of filling product into a container, there may be a situation in which the container is not fully opened (for example, for the container 520 shown in Fig. 8A, which is a sheetshaped plastic container, the two opposite inner surfaces of the container are very prone to being adsorbed together), resulting in that the filling cannot be carried out smoothly. In order to prevent a situation in which the container is not fully opened, the filling valve according to the embodiment is provided with a gas flow passage 123 that runs through the valve rod 120, and a gas is blown from a gas supply via gas supply pipeline 123a into the container via the gas flow passage 123 before or during filling, so as to fully open the container, thereby ensuring that the filling can be carried out smoothly. For example, the gas blown into the container via the gas flow passage 123 is a food-grade safety gas, such as nitrogen.

[0071] Fig. 7 is a schematic structural view of a gas delivery pipeline and a connection member in the filling valve according to the embodiment. Referring to Fig. 7, the filling valve according to the embodiment further includes a gas delivery pipeline 170 and a connection member 180. The connection member 180 has a first end 18011 and a second end 180L that are opposite to each other, and has a channel 180C that runs through the connection member 180 from the first end 18011 to the second end 180L, and the cross section of the first end 18011 perpendicular to the vertical direction D is smaller than that of the second end 180L perpendicular to the vertical direction D. The gas delivery pipeline 170 is hermetically connected to the first end 180U of the connection member 180, the channel 180C of the connection member 180 is aligned with the gas flow passage 123, and the second end 180L of the connection member 180 is hermetically connected to the valve rod 120. By providing the connection member 180 shown in Fig. 7, it is very convenient to hermetically communicate the gas delivery pipeline 170 with the gas flow passage 123 so as to deliver gas to the gas flow passage 123. The cross section of the first end 18011 perpendicular to the vertical direction D is smaller than that of the second end 180L perpendicular to the vertical direction D, thereby providing a convenience for connecting the gas delivery pipeline 170 to the valve rod 120 or detaching the gas delivery pipeline 170 from the valve rod 120 as required. For example, the second end 180L of the connection member 180 is connected to the valve rod 120 by rivets. For example, a sealing ring is provided at the position where the second end 180L of the connection member 180 is connected to the valve rod 120 in order to ensure that the two are hermetically connected.

[0072] For example, in the filling valve according to an embodiment, both the valve body 100 and the valve rod 120 are made of a metal material. For example, the metal material is stainless steel. Mechanical components such as the valve body 100 and the valve rod 120 are made of the metal material, and the processing technology is mature, the processing difficulty is low and the cost is low.

[0073] For example, the valve body 100 is made of a metal material, and the valve rod 120 is made of a polymer material. For example, the metal material is stainless steel. For example, the polymer material is polyether ether ketone. In this case, the first tapered surface 120S can abut against the second tapered surface 112S more closely, thereby improving the sealing performance of the valve rod 120 to the discharge port 112.

[0074] According to an embodiment, there is also provided a filling apparatus. Fig. 8A is a schematic structural view of a filling apparatus according to an embodiment. Referring to Fig. 8A, a filling apparatus 1000 according to an embodiment includes a plurality of filling valves as described above and a movable plate 200, wherein each of the plurality of filling valves passes through the movable plate 200 and is detachably fixed to the movable plate 200, the movable plate 200 is movable in the vertical direction D to drive the plurality of filling valves as a whole to be movable in the vertical direction D. In Fig. 8A, a valve body 100 of a filling valve is indicated, and two rows of filling valves are shown as an example. By providing the movable plate 200 which is movable in the vertical direction D, the movement of the movable plate 200 can drive the plurality of filling valves as a whole to move in the vertical direction D, thereby ensuring the consistency of the movement of the plurality of filling valves and contributing to mass filling. In addition, the movement of one movable plate 200 can drive a plurality of filling valves, so that the structure is simpler, more concise and space-saving compared with the case of providing a separate drive mechanism for each filling valve.

[0075] For example, still referring to Fig. 8A, the filling apparatus 1000 according to the embodiment further includes a mounting plate 300, a perforated plate 400 and a sterile gas guide tube 610, wherein in the vertical direction D, the mounting plate 300 is provided below the movable plate 200, the perforated plate 400 is provided below the mounting plate 300, and the sterile gas guide tube 610 is provided between the mounting plate 300 and the perforated plate 400. Each of the plurality of filling valves passes through the mounting plate 300 and through the perforated plate 400, and the perforated plate 400 has a plurality of through holes penetrating through the perforated plate 400 in the vertical direction D. The sterile gas guide tube 610 extends in the vertical direction D and is provided with a plurality of sterile gas guide ports in its side wall. As described above, the upper end 14011 of the second telescopic sleeve is connected to the mounting plate 300. As described above, the gas chamber housing 150 is connected to the mounting plate 300. The perforated plate 400 has a plurality of through holes penetrating through the perforated plate 400 in the vertical direction D, and in Fig. 8A, small black dots on the perforated plate 400 represent the through holes. The sidewall of the sterile gas guide tube 610 is provided with a plurality of sterile gas guide ports, and in Fig. 8A, small black dots on the sidewall of the sterile gas guide tube 610 represent the sterile gas guide ports. A sterile gas is delivered from the sterile gas guide tube 610 into the aseptic chamber as described below and spread out, and then is dispersed under the guide function of the plurality of through holes of the perforated plate and reaches the discharge ports 112 of the plurality of filling valves, thereby maintaining the sterility of the aseptic chamber as well as the sterility at the discharge port 112, and thus aseptic filling is ensured.

[0076] Fig. 8B is a simplified schematic view of a bottom wall of the sterile gas guide tube in the filling apparatus according to the embodiment. For example, referring to Fig. 8B, the bottom wall 61 OL of the sterile gas guide tube 610 close to the perforated plate 400 is a substantially closed structure with only one opening 610H. For example, the opening 610H is used to guide condensed water that may be formed. In order to ensure the sterile gas to spread over a wider range, a plurality of sterile gas guide ports are provided in the side wall of the sterile gas guide tube 610 as mentioned above. If the bottom wall 61 OL of the sterile gas guide tube 610 close to the perforated plate 400 is also provided with a plurality of sterile gas guide ports, the spreading range of the sterile gas flowing out from the bottom wall 610L is very limited. Therefore, in order to make the sterile gas concentratedly flow out from the plurality of sterile gas guide ports in the side wall of the sterile gas guide tube 610 and spread over a wide range, the bottom wall 610L of the sterile gas guide tube 610 is not provided with a sterile gas guide port in the embodiment, and only one opening 61 OH is provided in the bottom wall 610L to guide condensed water that may be formed, such that the bottom wall 610L of the sterile gas guide tube 610 is substantially closed. For example, in order to better guide condensed water that may be formed, the opening 61 OH is provided at the central position of the bottom wall 610L.

[0077] Further, still referring to Fig. 8A, the filling apparatus according to the embodiment further includes a sterile gas conveying tube 620 that is hermetically connected to an end of the sterile gas guide tube 610 close to the mounting plate 300, and the diameter of the sterile gas guide tube 610 is larger than that of the sterile gas conveying tube 620. The sterile gas guide tube 610 is located in the aseptic chamber as described below, and the sterile gas guide tube 610 is configured to have a larger diameter, which is very helpful for the sterile gas to spread to various locations in the aseptic chamber so as to ensure the sterility of the aseptic chamber.

[0078] Further, still referring to Fig. 8A, the filling apparatus according to the embodiment further includes a guide plate 500, wherein the guide plate 500 is provided below the perforated plate 400 in the vertical direction D, the mounting plate 300 and the guide plate 500 are configured as a top wall and a bottom wall of the aseptic chamber SC respectively, and the sterile gas guide tube 610 continuously guides the sterile gas into the aseptic chamber SC. The guide plate 500 has a strip-shaped opening 510 that is located just below the discharge port 112 of the filling valve relative to the vertical direction D. The container 520 is movable along the strip-shaped opening 510, and the sterile gas leaves the aseptic chamber SC via the stripshaped opening 510. The mounting plate 300 and the guide plate 500 are respectively constructed as the top wall and the bottom wall of the aseptic chamber SC, and the filling is carried out in the aseptic chamber SC. The sterile gas guide tube 610 continuously guides sterile gas into the aseptic chamber SC to ensure the sterility of the aseptic chamber SC, and the sterile gas leaves the aseptic chamber SC via the strip-shaped opening 510 to realize the circulation of the sterile gas. The container 520 is movable along the strip-shaped opening 510, and it can be understood that the strip-shaped opening 510 defines the movement trajectory of the container 520. The container 520 is moved along the strip-shaped opening 510 to reach just below the discharge port 112, and the product in the valve chamber 110 enters into the container 520 from the discharge port 112 to realize filling. Further, the guide plate 500, in addition to serving as the bottom wall of the aseptic chamber SC, also has a guide function, it guides condensed water that may occur in the aseptic chamber SC to the strip-shaped opening 510, and the condensed water flows out via the strip-shaped opening 510.

[0079] For example, still referring to Fig. 8A, in the filling apparatus according to the embodiment, the plurality of filling valves are divided into at least one group, and the filling valves included in each group are arranged in two adjacent rows of filling valves, and the sterile gas guide tube 610 is located between the two rows of filling valves. At least a portion of the perforated plate 400 has a cross-section substantially in a V-shape in the vertical direction D, and a lower vertex of the V-shape is located between the two rows of filling valves. The guide plate 500 includes two strip-shaped openings 510 corresponding to the two rows of filling valves respectively, at least a portion of the guide plate 500 has a cross-section substantially in a W- shape in the vertical direction D, two lower vertices of the W-shape correspond to the two strip-shaped openings 510 respectively, and an upper vertex of the W-shape is located between the two rows of filling valves. The sterile gas guide tube 610 is located between the two rows of filling valves, and at least a portion of the perforated plate 400 has a crosssection substantially in a V-shape in the vertical direction D, and a lower vertex of the V- shape is also located between the two rows of filling valves. In this way, the V-shaped structure of the perforated plate 400 may reflect or refract the sterile gas flowing out from the plurality of sterile gas guide ports in the side wall of the sterile gas guide tube 610, so that the sterile gas forms a chaotic turbulent flow, and thus the sterile gas can spread more widely and is evenly distributed. Under the guidance of the plurality of through holes of the perforated plate 400, the widely distributed sterile gas then uniformly flows downward and forms laminar wind to reach the vicinity of the discharge port 112 of each filling valve, thereby ensuring both the sterility in the vicinity of the discharge port 112 of each filling valve and minimal disturbance of the laminar wind to the product flow flowing from the discharge port 112 to the container. For example, if the sterile gas guide tube 610 is located in an intermediate position between the two rows of filling valves and the lower vertex of the V- shape is also located at an intermediate position between the two rows of filling valves, the above effects can be better achieved. At least a portion of the guide plate 500 has a crosssection substantially in a W-shape in the vertical direction D, two lower vertices of the W- shape correspond to the two strip-shaped openings 510 respectively, and the upper vertex of the W-shape is located between the two rows of filling valves, so that condensed water that may occur can be guided to the two strip-shaped openings 510 very effectively. For example, the upper vertex of the W-shape is located at an intermediate position between the two rows of filling valves.

[0080] For example, according to an embodiment, the included angle at the lower vertex of the V- shape as described above is 170°-175°. On the one hand, this angle range should not be too large, otherwise much space will be occupied, which will not be beneficial for the arrangement of other components; on the other hand, the angle range should not be too small, otherwise the function of reflecting or refracting the sterile gas will not be performed.

[0081] For example, according to an embodiment, each angle range at the lower vertices and the upper vertex of the W-shape as described above is 170°-175°. The angle range at these positions should not be too large, otherwise much space will be occupied, which will not be beneficial for the arrangement of other components. The angle range at these positions should not be too small, otherwise the guiding function will not be performed.

[0082] For example, according to an embodiment, referring to Fig. 8A, the second isolation member 140 described above is located in the aseptic chamber SC. Together with the aseptic chamber SC, the second isolation member 140 ensures the sterility of the second portion 100-2 of the valve body 100, and thus ensures the sterility at the discharge port 112, and ensures the implementation of aseptic filling.

[0083] A filling system is also provided according to an embodiment. Fig. 9 is a structural schematic view of a filling system according to an embodiment, Fig. 10A is a first structural schematic view of an ejection valve in the filling system according to the embodiment, and Fig. 10B is a second structural schematic view of the ejection valve in the filling system according to the embodiment. Referring to Fig. 9, Fig. 10A and Fig. 10B, a filling system according to an embodiment includes a filling apparatus 1000 as described above, and a preheating apparatus 2000, a sterilizing apparatus 3000 and a drying apparatus 4000, wherein each of the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 includes an ejection valve. The ejection valve includes: an ejection valve body 700 and an ejection valve rod 720. The ejection valve body 700 has a valve chamber 710 and an outlet 711 that communicates with the valve chamber 710, wherein the valve chamber 710 extends in the vertical direction D, and the outlet 711 is located at a lower end of the ejection valve body 700 in the vertical direction D. The ejection valve rod 720 is mounted in the ejection valve chamber 710 and has a channel 721 running through the ejection valve rod 720 in the vertical direction D, wherein the ejection valve rod 720 is movable relative to the ejection valve body 700 in the vertical direction D, and the ejection valve body 700 is movable in the vertical direction D. And the ejection valve further includes a third isolation member 730 and / or a fourth isolation member 740, the third isolation member 730 is provided inside the ejection valve chamber 710 and isolates the ejection valve chamber 710 into a first portion and a second portion, and the outlet 711 is located in the second portion; the fourth isolation member 740 is provided outside the ejection valve body 700 and isolates the ejection valve body 700 into a first portion and a second portion, and the outlet 711 is located in the second portion. For example, for the preheating apparatus 2000, a preheating gas (for example, hot air) is ejected into a container located at the preheating apparatus 2000 via the channel 721 running through the ejection valve rod 720 to preheat a target portion of the container. For example, for the sterilizing apparatus 3000, a sterilizing medium (for example, hydrogen peroxide) is ejected into a container located at the sterilizing apparatus 3000 via the channel 721 running through the ejection valve rod 720 to sterilize the container. For example, for the drying apparatus 4000, a drying gas (for example, nitrogen) is ejected into a container located at the drying apparatus 4000 via the channel 721 running through the ejection valve rod 720 to dry the container and make it ready to be filled. For example, the ejection valve rod 720 may get in and come out of the valve chamber 710 via the outlet 711 , so as to adjust the distance between an ejection port of the ejection valve rod 720 (that is, an opening of the channel 721 close to the container) and the container, such that the corresponding ejection valve rod 720 in each of the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 may treat the container accordingly at the most appropriate distance. For example, the ejection valve rod 720 is movable relative to the ejection valve body 700 in the vertical direction D, and the ejection valve body 700 is movable in the vertical direction D. In this way, in each of the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000, the ejection valve has two independently controllable strokes, so that the ejection valve is more flexible and applied to various scenarios, and it may be adapted to containers of different specifications to meet diverse requirements of users. For example, in order to ensure that aseptic ejection is achieved in each of the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000, the ejection valve in each of the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 further includes a third isolation member 730 or a fourth isolation member 740. For example, the third isolation member 730 is provided inside the ejection valve chamber 710 and isolates the ejection valve chamber 710 into a first portion and a second portion, and the outlet 711 is located in the second portion, in this way, it is possible to ensure the sterility of the second portion of the ejection valve chamber 710, thereby ensuring the implementation of aseptic ejection. For example, the fourth isolation member 740 is provided outside the ejection valve body 700 and isolates the ejection valve body 700 into a first portion and a second portion, and the outlet 711 is located in the second portion, in this way, it is possible to ensure the sterility in the vicinity of the outlet 711, thereby ensuring the implementation of aseptic ejection.

[0084] For example, referring to Fig. 10A, the third isolation member 730 is a sterilization gas barrier, and the ejection valve body 700 has an ejection valve gas inlet 731 and an ejection valve gas outlet 732 that communicate with the ejection valve chamber 710. A sterilization gas enters the ejection valve chamber 710 from the ejection valve gas inlet 731 and leaves the ejection valve chamber 710 through the ejection valve gas outlet 732 to form the sterilization gas barrier in the ejection valve chamber 710. And the ejection valve rod 720 is movable downward by a stroke not greater than the size of the sterilization gas barrier in the vertical direction D. For example, in Fig. 10A, in the vertical direction D, the first portion of the ejection valve chamber 710 is located above the third isolation member 730, and the second portion of the ejection valve chamber 710 is located below the third isolation member 730. In the case where the third isolation member 730 is a sterilization gas barrier, its working principle is substantially similar to that of the first isolation member 130 shown in Fig. 1 B, and the details are not repeated here. Adopting a sterilization gas barrier as the third isolation member 730 is easy to implement and low in cost. The sterilization gas can be any gas with sterilization performance, such as high-temperature steam, vaporized hydrogen peroxide and the like.

[0085] For example, referring to Fig. 10B, the ejection valve further includes a mounting plate 750, and the fourth isolation member 740 is a third telescopic sleeve, which is sleeved on the ejection valve body 700 and is extendable and retractable in the vertical direction D. The third telescopic sleeve includes an upper end and a lower end in the vertical direction D, the upper end is fixed to the mounting plate 750, and the lower end is fixed to the lower end of the ejection valve body 700. For example, for the fourth isolation member 740, its working principle is similar to that of the second isolation member 140 shown in Fig. 1 C, and the first portion and the second portion of the ejection valve body 700 are also similar to the first portion 100-1 and the second portion 100-2 of the valve body 100. For example, the filling system includes a plurality of movable plates, which are independent of one another and provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively. The movable plate in each of the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 may be provided with reference to the movable plate 200 shown in Fig. 8A, and the details are not repeated here. The plurality of movable plates are provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively and are independent of one another, so that the position of the valve body may be flexibly adjusted according to the specific condition at each apparatus.

[0086] For example, the filling system includes a plurality of mounting plates, which are independent of one another and provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively. The mounting plate in each of the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 may be provided with reference to the mounting plate 300 shown in Fig. 8A, and the details are not repeated here. The plurality of mounting plates are provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively and are independent of one another, so that the valve body may be flexibly mounted according to the specific condition at each apparatus.

[0087] For example, the filling system includes a plurality of perforated plates, which are independent of one another and provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively. The perforated plate in each of the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 may be provided with reference to the perforated plate 400 shown in Fig. 8A, and the details are not repeated here. The plurality of perforated plates are provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively and are independent of one another, so that it is convenient to flexibly guide the sterilization gas according to the specific condition at each apparatus.

[0088] For example, the filling system includes a plurality of guide plates, which are independent of one another and provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively. The guide plate in each of the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 may be provided with reference to the guide plate 500 shown in Fig. 8A, and the details are not repeated here. The plurality of guide plates are provided in correspondence to the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000 respectively and are independent of one another, so that it is convenient to flexibly guide condensed water in each aseptic chamber according to the specific condition at each apparatus.

[0089] For example, in the vertical direction D, the movable plate, the mounting plate, the perforated plate and the guide plate are sequentially provided from top to bottom in each of the filling apparatus 1000, the preheating apparatus 2000, the sterilizing apparatus 3000 and the drying apparatus 4000, reference may be made to Fig. 8A for this arrangement mode.

[0090] The above are only exemplary embodiments, and are not intended to limit the protection scope of the present invention, which is determined by the appended claims.

[0091] In order to make the objects, technical solutions and advantages of the invention clearer, the technical solutions of embodiments are clearly and completely described in conjunction with the drawings of the embodiments. It is apparent that the described embodiments are only some embodiments rather than all embodiments. Based on the described embodiments, all the other embodiments obtained by those of ordinary skill in the art without creative work will fall within the protection scope of the present invention.

[0092] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning understood by a person of ordinary skill in the art to which the present invention belongs. The words “first”, “second” and similar words used in the specification of the patent application and the claims of the present invention do not indicate any order, number or importance, but are used only to distinguish different components. Words such as “including” or “comprising” or the like mean that the element or object preceded by the word encompasses the element or object listed after the word and its equivalents, without excluding other elements or objects. The words “inside”, “outside”, “above”, “below”, etc. are used only to indicate relative positional relationships. When the absolute position of the depicted object is changed, the relative positional relationship may be changed accordingly.

Claims

CLAIMS1. Filling system comprising a filling valve for filling a product, such as milk, beverages, vegetable puree and the like, into a container, the filling valve comprising a valve body (100) having a valve chamber (110), a feeding port (111) and a discharge port (112) that communicate with the valve chamber, wherein the valve chamber extends in a vertical direction (D), and the discharge port is located at a lower end of the valve body in the vertical direction, the filling valve further comprising a valve rod (120) mounted in the valve chamber, wherein the valve rod is movable relative to the valve body in the vertical direction; and the valve body is movable in the vertical direction relative to a mounting plate (300); the filling valve further comprising: a first isolation member (130) that is provided inside the valve chamber and isolates the valve chamber into a first portion (110-1) and a second portion (110-2), wherein the feeding port (111) and the discharge port (112) are located in the second portion; a second isolation member (140) that is provided outside the valve body and mounted between the valve body and the mounting plate to isolate the valve body into a first portion (100-1) and a second portion (100-2), wherein the discharge port (112) is located in the second portion.

2. Filling system according to claim 1 , wherein the filling valve passes through the mounting plate, the filling system further comprising a guide plate (500) having a strip-shaped opening (510) located below the discharge port of the filling valve, wherein containers are movable along the strip-shaped opening, the mounting plate (300) and the guide plate (500) being constructed as a top wall and a bottom wall of an aseptic chamber (SC) respectively, wherein a sterile gas guide tube (610) is configured to continuously feed a sterile gas into the aseptic chamber, wherein the second isolation member (140) is located in the aseptic chamber (SC).

3. Filling system with a filling valve according to claim 1 or 2, wherein the first isolation member (130) is a sterilization gas barrier and wherein the valve body (100) has a gas inlet (131) and a gas outlet (132) that communicate with the valve chamber (110), a sterilization gas enters the valve chamber from the gas inlet and leaves the valve chamber through the gas outlet to form the sterilization gas barrier in the valve chamber, the gas inlet and the gas outlet both being located above the feeding port relative to the vertical direction; and wherein the valve rod (120) is movable downward by a stroke not greater than a size of the sterilization gas barrier in the vertical direction.

4. Filling system according to any of the preceding claims, wherein the sterilization gas is high-temperature steam; and, optionally, the gas inlet is located above the gas outlet relative to the vertical direction.

5. Filling system with a filling valve according to any of the preceding claims, wherein the first isolation member is a first telescopic sleeve (130), which is sleeved on the valve rod (120) and is extendable and retractable in the vertical direction; the first telescopic sleeve comprises an upper end (13011) and a lower end (130L) relative to the vertical direction, the upper end is fixed to a wall of the valve chamber (110), and the lower end is fixed to the valve rod (120); the upper end is located above the feeding port (111) relative to the vertical direction.

6. Filling system with a filling valve according to any of the preceding claims, wherein the first isolation member comprises a first sterilization gas barrier (130a) and a second sterilization gas barrier (130b); the valve body (100) has a first gas inlet (131a) and a first gas outlet (132a) that communicate with the valve chamber (110), and a first sterilization gas enters the valve chamber from the first gas inlet and leaves the valve chamber through the first gas outlet to form the first sterilization gas barrier in the valve chamber; the valve body has a second gas inlet (131b) and a second gas outlet (132b) that communicate with the valve chamber (110), and a second sterilization gas enters the valve chamber from the second gas inlet and leaves the valve chamber through the second gas outlet to form the second sterilization gas barrier in the valve chamber; the first gas inlet, the first gas outlet, the second gas inlet and the second gas outlet are all located above the feeding port (111) in the vertical direction, wherein the valve rod (120) is movable downward by a stroke not greater than a sum of a size of the first sterilization gas barrier and a size of the second sterilization gas barrier in the vertical direction.

7. Filling system with a filling valve according to any of the preceding claims, wherein the second isolation member is a second telescopic sleeve (140), which is sleeved on the valve body (100) and is extendable and retractable in the vertical direction; and the second telescopic sleeve comprises an upper end (14011) and a lower end (140L) relative to the vertical direction, the upper end is fixed to the mounting plate, and the lower end is fixed to the lower end of the valve body.

8. Filling system according to claim 7, further comprising a double-shell connection member (160) that comprises an inner shell (161) sleeved on the valve body and an outer shell (162) sleeved on the inner shell, wherein the double-shell connection member comprises an upperend and a lower end relative to the vertical direction, wherein the upper end of the doubleshell connection member is fixed to the mounting plate, and the upper end of the second telescopic sleeve (14011) is clamped and fixed between the inner shell and the outer shell at the lower end of the double-shell connection member.

9. Filling system according to any of the preceding claims 1-6, wherein the second isolation member is a further sterilization gas barrier, comprising a gas chamber housing (150) that is provided below the mounting plate in the vertical direction and fixed to the mounting plate, and wherein the gas chamber housing is sleeved on the valve body (100) and defines a gas chamber together with the valve body, the gas chamber housing has a further gas inlet (151 ) and a further gas outlet (152), and a sterilization gas enters the gas chamber from the further gas inlet and leaves the gas chamber through the further gas outlet to form the further sterilization gas barrier in the gas chamber; wherein the valve body (100) is movable relative to the gas chamber housing in the vertical direction and wherein the valve body is movable downward by a stroke not greater than a size of the further sterilization gas barrier in the vertical direction.

10. Filling system according to any one of claims 1-9, further comprising a gas flow passage (123) that is provided inside the valve rod (120) and runs through the valve rod in the vertical direction.

11. Filling system according to claim 10, further comprising a gas delivery pipeline (170) and a connection member (180); wherein the connection member has a first end (18011) and a second end (180L) that are opposite to each other, and a channel (180C) that runs through the connection member from the first end to the second end, and a cross section of the first end perpendicular to the vertical direction is smaller than that of the second end perpendicular to the vertical direction; wherein the gas delivery pipeline is hermetically connected to the first end of the connection member, and wherein the channel of the connection member is aligned with the gas flow passage (123), and the second end of the connection member is hermetically connected to the valve rod (120).

12. Filling system according to one or more of the preceding claims, comprising a filling apparatus (1000) which comprises a plurality of filling valves according to any one of claims 1-11; preferably further comprising a movable plate (200), wherein each of the plurality of filling valves passes through the movable plate and is detachably fixed to the movable plate, wherein the movable plate is movable in the vertical direction to drive the plurality of filling valves as a whole to be movable in the vertical direction.

13. Filling system according to claim 12, further comprising a perforated plate (400) and a sterile gas guide tube (610), wherein in the vertical direction, the mounting plate (300) is provided below the movable plate (200), wherein the perforated plate is provided below the mounting plate, and the sterile gas guide tube is provided between the mounting plate and the perforated plate; each of the plurality of filling valves passes through the mounting plate; each of the plurality of filling valves passes through the perforated plate, and the perforated plate has a plurality of through holes penetrating through the perforated plate in the vertical direction; the sterile gas guide tube extends in the vertical direction and is provided with a plurality of sterile gas guide ports in its side wall.

14. Filling system according to claim 12, wherein a bottom wall (610L) of the sterile gas guide tube close to the perforated plate is a substantially closed structure with only one opening.

15. Filling system according to claim 12, further comprising a sterile gas conveying tube (620), the sterile gas conveying tube is hermetically connected to an end of the sterile gas guide tube (610) close to the mounting plate; the diameter of the sterile gas guide tube is larger than that of the sterile gas conveying tube.

16. Filling system according to claim 12, further comprising a guide plate (500), wherein the guide plate is provided below the perforated plate (400) in the vertical direction, the mounting plate (300) and the guide plate (500) are constructed as a top wall and a bottom wall of an aseptic chamber respectively, and the sterile gas guide tube (610) continuously guides a sterile gas into the aseptic chamber; the guide plate having a strip-shaped opening (510), which is located just below the discharge port of the filling valve in the vertical direction, containers being movable along the strip-shaped opening, the sterile gas leaving the aseptic chamber via the strip-shaped opening.

17. Filling system according to claim 16, wherein the second isolation member is located in the aseptic chamber.

18. Filling system, comprising the filling apparatus (1000) according to any one of claims 12- 17 and a preheating apparatus (2000) and / or a sterilizing apparatus (3000) and / or a drying apparatus (4000) upstream of the filling apparatus, wherein at least one of the preheating apparatus, the sterilizing apparatus and the drying apparatus comprises an ejection valve, the ejection valve comprises an ejection valve body (700) that has a valve chamber (710) and an outlet (711) that communicates with the valve chamber, wherein the valve chamber extends in the vertical direction, and the outlet is located at a lower end of the ejection valve bodyrelative to the vertical direction, the ejection valve further comprising an ejection valve rod (720) that is mounted in the ejection valve chamber and has a channel (721) running through the ejection valve rod in the vertical direction, wherein the ejection valve rod is movable relative to the ejection valve body in the vertical direction, and the ejection valve body is movable in the vertical direction relative to a mounting plate (750); and the ejection valve further comprises a third isolation member (730) that is provided inside the ejection valve chamber and isolates the ejection valve chamber into a first portion and a second portion, wherein the outlet is located in said second portion; or a fourth isolation member (740) that is provided outside the ejection valve body and isolates the ejection valve body into a first portion and a second portion, wherein the outlet is located in said second portion.

19. Filling system according to claim 18, wherein the third isolation member (730) is a sterilization gas barrier, the ejection valve body having an ejection valve gas inlet (731) and an ejection valve gas outlet (732) that communicate with the ejection valve chamber, a sterilization gas enters the ejection valve chamber from the ejection valve gas inlet and leaves the ejection valve chamber through the ejection valve gas outlet to form the sterilization gas barrier in the ejection valve chamber; and the ejection valve rod is movable downward by a stroke not greater than a size of the sterilization gas barrier in the vertical direction.

20. Filling system according to claim 18, wherein the fourth isolation member (740) is a third telescopic sleeve, which is sleeved on the ejection valve body (700) and is extendable and retractable in the vertical direction; and the third telescopic sleeve comprises an upper end and a lower end in the vertical direction, the upper end is fixed to the mounting plate, and the lower end is fixed to the lower end of the ejection valve body.

21. Filling process wherein use is made of a filling system according to any of the preceding claims.

22. Filling process according to claim 21 , wherein containers are moved along the stripshaped opening of the guide plate and wherein filling valves pass through the mounting plate to fill product into the containers, wherein the first isolation member isolates the second portion (110-2) of the valve chamber from the first portion (110-1) of the valve chamber, and wherein the second isolation member isolates the second portion (100-2) of the valve body from the first portion (100-1) of the valve body.

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