Gas nozzle valve for tank

Abstract

The present invention relates to a gas nozzle valve for a tank body, wherein a front pressure plate is arranged on the top of a nozzle valve body, an air outlet is arranged on the front pressure plate, a threaded through hole is arranged on the side wall of the nozzle valve body, and an air inlet is arranged on the threaded through hole; a connecting rod is provided between the nozzle valve body and an outer cover, a sealing head is provided at the top of the connecting rod, and the sealing head is provided below the air outlet; a cylinder connecting rod is provided between the cylinder and the outer cover, the top of the cylinder connecting rod is connected to the output end of the cylinder, the connecting rod and the cylinder connecting rod are parallel in direction, and the bottom end of the connecting rod and the bottom end of the cylinder connecting rod are connected together through a connecting rod. The gas nozzle valve has a simple structure and is easy to manufacture. The sealing head is made of food-grade silicone rubber, will not contaminate the material, and has a good sealing effect; when ventilation is stopped, the sealing head can isolate the powder from the gas channel, effectively avoiding the problem of secondary contamination of the material in the tank body, and can apply the airflow mixing process to aseptic production.

Description

Technical Field

[0001] The invention relates to the technical field of biomedicine and food equipment, and in particular to a gas nozzle valve for a tank. Background Art

[0002] Pneumatic pulse mixing equipment is widely used in the production process of medicines and foods because of its low energy consumption and simple structure. The airflow pulse mixing equipment in the prior art uses an inflatable flange to open holes to blow compressed air into the mixing equipment. When storing materials in powder material tanks, bridging occurs for materials with poor fluidity, and compressed air is blown into the tank body to break the bridges. In the prior art, material tanks use flow-aiding discs or directly open holes to blow compressed air into the tank body. However, regardless of whether it is a flange hole or a flow-aiding disc, there is a tubular channel with a very thin diameter between the gas valve and the material. When the gas valve is closed, the material will immediately enter the channel in the opposite direction. Because this section of the channel has a complex structure and a small diameter, it is difficult to completely clean it, which can easily cause cross-contamination of the material in the tank. Because of this problem, the airflow mixing process is also difficult to use in aseptic production.

[0003] Therefore, it is necessary to provide a gas nozzle valve for a tank body, which can effectively solve the problem that when ventilation is stopped, the material flows back into a small space and is difficult to clean, thereby avoiding secondary contamination of the material. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a gas nozzle valve for a tank body, comprising a connecting rod and a sealing head fixed to the top end of the connecting rod, the sealing head forms a seal with the air outlet of the front pressure plate, and gas supply and closing are achieved through the up and down movement of the sealing head.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A gas nozzle valve for a tank body comprises a front pressure plate, a nozzle valve body, an outer cover and a cylinder, wherein the front pressure plate is arranged on the top of the nozzle valve body, an air outlet is arranged on the front pressure plate, a threaded through-hole is arranged on the side wall of the nozzle valve body, and an air inlet is arranged on the threaded through-hole; a connecting rod is passed through between the nozzle valve body and the outer cover, a sealing head is arranged at the top end of the connecting rod, and the sealing head is arranged below the air outlet; a cylinder connecting rod is passed through between the cylinder and the outer cover, the top end of the cylinder connecting rod is connected to the output end of the cylinder, the directions of the connecting rod and the cylinder connecting rod are parallel, and the bottom end of the connecting rod and the bottom end of the cylinder connecting rod are connected together by a connecting rod.

[0007] The gas nozzle valve is directly installed on the side wall of the tank body, and the air outlet is sealed by a sealing head. When ventilation is performed, the sealing head is opened, and compressed air is blown into the tank body through the air outlet. Due to the pressure, the powder in the tank body will not enter the nozzle valve; when ventilation is not performed, the sealing head first presses the air outlet, and then closes the compressed air. The compressed sealing head is basically located in the same plane as the side wall of the tank body, so no dead angle is formed between the sealing head and the tank body wall, which effectively solves the above-mentioned problem that when the compressed air is turned off, the powder flows back into a small space and is difficult to clean, thereby avoiding secondary contamination of the powder.

[0008] Preferably, a ventilation channel is provided between the air inlet of the nozzle valve body and the air outlet of the front pressure plate, a connecting rod channel is provided between the bottom end of the ventilation channel in the nozzle valve body and the outer cover, a sealing ring is provided on the inner side wall of the connecting rod channel, and the inner diameter of the connecting rod channel is the same as the outer diameter of the connecting rod. During the ventilation and air-closing process, the connecting rod moves up and down in the connecting rod channel, and the function of the sealing ring is to seal the connecting rod with the inner side wall of the connecting rod channel, thereby ensuring the air tightness of the ventilation channel and ensuring that the compressed air entering the air inlet enters the tank body through the air outlet.

[0009] Preferably, a support rod is provided between the connecting rod and the cylinder connecting rod, the top end of the support rod is fixedly arranged on the top wall of the outer cover, the bottom end of the support rod is connected to the middle part of the connecting rod, and the support rod is parallel to the connecting rod and the cylinder connecting rod. The support rod is connected to the middle part of the connecting rod to ensure that the connecting rod rotates with the connection point between the support rod and the connecting rod as the center during the rotation process, thereby ensuring the effectiveness of the connecting rod transmission.

[0010] Preferably, the connecting rod, the cylinder connecting rod and the supporting rod are connected to the connecting rod through a pin respectively. The pin connection can ensure that the connecting rod and the connecting rod, the cylinder connecting rod and the supporting rod can rotate relative to each other, and ensure that the kinetic energy output by the piston rod of the cylinder is transmitted to the connecting rod through the connecting rod to drive the sealing head to move up and down.

[0011] Preferably, an L-shaped threaded through hole is provided on the side wall of the cylinder, and the L-shaped threaded through hole is connected to compressed air as the power source of the cylinder, and the cylinder connecting rod connected to the output end of the cylinder can be pushed to move up and down.

[0012] Preferably, the nozzle valve body and the outer cover, as well as the cylinder and the outer cover, are fixedly connected via a connecting plate. The connecting plate serves as a connecting piece between the nozzle valve body and the outer cover, as well as between the cylinder and the outer cover, to ensure the stability of the connection.

[0013] Preferably, the front pressure plate is made of food-grade stainless steel, and the sealing head is made of food-grade silicone rubber. All parts of the gas nozzle valve that can contact the material are made of food-grade stainless steel, and the sealing head is made of food-grade silicone rubber, which is soft, will not contaminate the material, and has a good sealing effect.

[0014] As an application mode of the gas nozzle valve for a tank body of the present invention, the gas nozzle valve is arranged on the side wall of the tank body, and the gas outlet of the front pressure plate is arranged in the side wall of the tank body. It is used as a cut-off valve for introducing compressed air into the tank body. When the compressed air enters the tank body, the material in the tank body is fluidized and circulates under the action of pressure to achieve the purpose of mixing.

[0015] As another application mode of the gas nozzle valve for a tank body of the present invention, the gas nozzle valve is arranged on the side wall of the discharge valve, and the gas outlet of the front pressure plate is arranged in the side wall of the discharge valve. It is used as a cut-off valve for introducing compressed air into the discharge valve, and the compressed air enters the discharge valve to fluidize the material in the discharge valve, which helps the material to fall.

[0016] The invented gas nozzle valve for tank body can also be applied to liquid tanks, such as air flow mixers in pharmaceutical, food processing or chemical production, tank bodies requiring bridging and unloading valves.

[0017] The method of using a gas nozzle valve for a tank of the present invention is as follows:

[0018] First, compressed air enters the cylinder and the nozzle valve body through the L-shaped threaded straight through port and the air inlet respectively. When it is necessary to ventilate the tank body, the piston rod of the cylinder drives the cylinder connecting rod to move upward and retract, driving the right end of the connecting rod to move upward, and the other end of the connecting rod drives the connecting rod and the sealing head to move downward and extend. The sealing head is separated from the air outlet of the front pressure plate, and compressed air enters the tank body through the air outlet; when it is not necessary to ventilate the tank body, the piston of the cylinder drives the cylinder connecting rod to move downward and extend, driving the right end of the connecting rod to move downward, and the other end of the connecting rod drives the connecting rod and the sealing head to move upward and retract, and the air outlet of the sealing head and the front pressure plate is closed to prevent powder in the tank body from flowing into the nozzle valve.

[0019] The beneficial effects of the present invention are as follows: Due to the adoption of the above technical solution, the gas nozzle valve has a simple structure and is easy to manufacture. The sealing head is made of food-grade silicone rubber, which will not pollute the material and has a good sealing effect; when the ventilation is stopped, the sealing head can isolate the powder from the gas channel, effectively avoiding the secondary contamination of the material in the tank, significantly reducing the tank cleaning time, realizing online cleaning of the material tank, and applying the airflow mixing process to aseptic production.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, and to make the above and other purposes, technical features and advantages of the present invention easier to understand, one or more preferred embodiments are listed below and described in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A three-dimensional structural schematic diagram of a gas nozzle valve for a tank according to the present invention is shown.

[0023] Figure 2 A schematic cross-sectional structure diagram of a gas nozzle valve for a tank according to the present invention is shown.

[0024] Description of main reference numerals:

[0025] 1-sealing head, 2-front pressure plate, 3-nozzle valve body, 4-threaded straight-through, 5-connecting rod, 6-sealing ring, 7-connecting plate, 8-pin shaft, 9-support rod, 10-connecting rod, 11-cylinder connecting rod, 12-outer cover, 13-cylinder, 14-L-type threaded straight-through, 15-air inlet, 16-air outlet. DETAILED DESCRIPTION

[0026] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0027] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0028] In this document, for the convenience of description, spatial relative terms such as "below", "below", "down", "above", "above", "upper", etc. may be used to describe the relationship between one element or feature and another element or feature in the accompanying drawings. It should be understood that the spatial relative terms are intended to include different orientations of the object in use or operation in addition to the orientation depicted in the figure. For example, if the object in the figure is turned over, the element described as being "below" or "below" other elements or features will be oriented "above" the element or feature. Therefore, the exemplary term "below" can include both below and above. Objects may also have other orientations (rotated 90 degrees or other orientations) and the spatial relative terms used in this document should be interpreted accordingly.

[0029] like Figure 1-Figure 2As shown, a gas nozzle valve for a tank body includes a front pressure plate 2, a nozzle valve body 3, an outer cover 12 and a cylinder 13, wherein the front pressure plate 2 is arranged on the top of the nozzle valve body 3, and an air outlet 16 is provided on the front pressure plate 2, and a threaded straight through 4 is provided on the side wall of the nozzle valve body 3, and an air inlet 15 is provided on the threaded straight through 4.

[0030] A connecting rod 5 is provided between the nozzle valve body 3 and the outer cover 12, and a sealing head 1 is provided at the top of the connecting rod 5, and the sealing head 1 is arranged below the air outlet 16. A ventilation channel is provided between the air inlet 15 of the nozzle valve body 3 and the air outlet 16 of the front pressure plate 2, and a connecting rod channel is provided between the bottom end of the ventilation channel in the nozzle valve body 3 and the outer cover, and a sealing ring 6 is provided on the inner side wall of the connecting rod channel, and the inner diameter of the connecting rod channel is the same as the outer diameter of the connecting rod 5. During the ventilation and air-closing process, the connecting rod 5 moves up and down in the connecting rod channel, and the function of the sealing ring 6 is to seal the connecting rod 5 with the inner side wall of the connecting rod channel, to ensure the air tightness of the ventilation channel, and to ensure that the compressed air entering the air inlet 15 enters the tank body through the air outlet 16.

[0031] A cylinder connecting rod 11 is provided between the cylinder 13 and the outer cover 12, the top end of the cylinder connecting rod 11 is connected to the output end of the cylinder 13, the connecting rod 5 and the cylinder connecting rod 11 are in parallel, and the bottom end of the connecting rod 5 and the bottom end of the cylinder connecting rod 11 are connected together through a connecting rod 10. A supporting rod 9 is provided between the connecting rod 5 and the cylinder connecting rod 11, the top end of the supporting rod 9 is fixedly arranged on the top wall of the outer cover 12, the bottom end of the supporting rod 9 is connected to the middle part of the connecting rod 10, and the supporting rod 9 is in parallel with the connecting rod 5 and the cylinder connecting rod 11. The supporting rod 9 is connected to the middle part of the connecting rod 10, so as to ensure that the connecting rod 10 rotates with the connection point between the supporting rod 9 and the connecting rod 10 as the center during the rotation process, thereby ensuring the effectiveness of the connecting rod transmission.

[0032] The gas nozzle valve is directly mounted on the side wall of the tank body, and the air outlet 16 is sealed by the sealing head 1. When ventilation is required, the sealing head 1 is opened, and compressed air is blown into the tank body through the air outlet 16. Due to the pressure, the powder in the tank body will not enter the nozzle valve; when ventilation is not required, the sealing head 1 first presses the air outlet 16, and then closes the compressed air. The compressed sealing head 1 is basically located in the same plane as the side wall of the tank body, so no dead angle is formed between the sealing head 1 and the tank body wall, effectively solving the above-mentioned problem that when the compressed air is closed, the powder flows back into a small space and is difficult to clean, thereby avoiding secondary contamination of the powder.

[0033] The connecting rod 5, the cylinder connecting rod 11 and the supporting rod 9 are respectively connected to the connecting rod 10 through the pin 8. The connection of the pin 8 can ensure that the connecting rod 10 and the connecting rod 5, the cylinder connecting rod 11 and the supporting rod 9 can rotate relative to each other, and ensure that the kinetic energy output by the piston rod of the cylinder 13 is transmitted to the connecting rod 5 through the connecting rod 10, so as to drive the sealing head 1 to move up and down.

[0034] The side wall of the cylinder 13 is provided with an L-shaped threaded through hole 14. The L-shaped threaded through hole 14 is connected with compressed air as the power source of the cylinder 13, and pushes the cylinder connecting rod 11 connected to the output end of the cylinder 13 to move up and down.

[0035] The nozzle valve body 3 and the outer cover 12, as well as the cylinder 13 and the outer cover 12, are fixedly connected via a connecting plate 7. The connecting plate 7 serves as a connecting piece between the nozzle valve body 3 and the outer cover 12, as well as between the cylinder 13 and the outer cover 12, to ensure the stability of the connection.

[0036] The material of the front pressure plate 2 is food grade stainless steel, and the material of the sealing head 1 is food grade silicone rubber. The parts of the gas nozzle valve that can contact the material are all made of food grade stainless steel, and the sealing head 1 is made of food grade silicone rubber, which is soft, will not pollute the material, and has a good sealing effect.

[0037] Example 1

[0038] As an application mode of the gas nozzle valve for a tank body of the present invention, the gas nozzle valve is arranged on the side wall of the tank body, and the gas outlet 16 of the front pressure plate 2 is arranged in the side wall of the tank body. It is used as a cut-off valve for introducing compressed air into the tank body. When the compressed air enters the tank body, the material in the tank body is fluidized and circulates under the action of pressure to achieve the purpose of mixing.

[0039] Example 2

[0040] As another application mode of the gas nozzle valve for a tank body of the present invention, the gas nozzle valve is arranged on the side wall of the discharge valve, and the gas outlet 16 of the front pressure plate 2 is arranged in the side wall of the discharge valve. It is used as a cut-off valve for introducing compressed air into the discharge valve, and the compressed air enters the discharge valve to fluidize the material in the discharge valve, which helps the material to fall.

[0041] The invented gas nozzle valve for tank body can also be applied to liquid tanks, such as air flow mixers in pharmaceutical, food processing or chemical production, tank bodies requiring bridging and unloading valves.

[0042] The method of using a gas nozzle valve for a tank of the present invention is as follows:

[0043] First, compressed air enters the cylinder 13 and the nozzle valve body 3 through the L-shaped threaded straight through 14 and the air inlet 15 respectively. When it is necessary to ventilate the tank body, the piston rod of the cylinder 13 drives the cylinder connecting rod 11 to move upward and retract, driving the right end of the connecting rod 10 to move upward, and the other end of the connecting rod 10 drives the connecting rod 5 and the sealing head 1 to move downward and extend, and the sealing head 1 is separated from the air outlet 16 of the front pressure plate 2, and the compressed air enters the tank body through the air outlet 16; when it is not necessary to ventilate the tank body, the piston of the cylinder 13 drives the cylinder connecting rod 11 to move downward and extend, driving the right end of the connecting rod 10 to move downward, and the other end of the connecting rod 10 drives the connecting rod 5 and the sealing head 1 to move upward and retract, and the air outlet 16 of the sealing head 1 and the front pressure plate 2 is closed to prevent the powder in the tank body from flowing into the nozzle valve.

[0044] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments should fall within the scope of protection of the present invention.

Claims

1. A gas nozzle valve for a tank, characterized in that: It comprises a front pressure plate (2), a nozzle valve body (3), an outer cover (12) and a cylinder (13), wherein the front pressure plate (2) is arranged on the top of the nozzle valve body (3), an air outlet (16) is provided on the front pressure plate (2), a threaded through hole (4) is provided on the side wall of the nozzle valve body (3), an air inlet (15) is provided on the threaded through hole (4), and an L-shaped threaded through hole (14) is provided on the side wall of the cylinder (13); A connecting rod (5) is provided between the nozzle valve body (3) and the outer cover (12), a sealing head (1) is provided at the top end of the connecting rod (5), and the sealing head (1) is arranged below the air outlet (16); a cylinder connecting rod (11) is provided between the cylinder (13) and the outer cover (12), the top end of the cylinder connecting rod (11) is connected to the output end of the cylinder (13), the connecting rod (5) and the cylinder connecting rod (11) are parallel in direction, and the bottom end of the connecting rod (5) and the bottom end of the cylinder connecting rod (11) are connected together via a connecting rod (10); A support rod (9) is provided between the connecting rod (5) and the cylinder connecting rod (11); the top end of the support rod (9) is fixedly arranged on the top wall of the outer cover (12); the bottom end of the support rod (9) is connected to the middle part of the connecting rod (10); and the support rod (9) is parallel to the connecting rod (5) and the cylinder connecting rod (11); The kinetic energy output by the piston rod of the cylinder (13) is transmitted to the connecting rod (5) through the connecting rod (10), so as to drive the sealing head (1) to move up and down, and the air outlet (16) is sealed by the sealing head (1); A ventilation channel is provided between the air inlet (15) of the nozzle valve body (3) and the air outlet (16) of the front pressure plate (2); a connecting rod channel is provided between the bottom end of the ventilation channel in the nozzle valve body (3) and the outer cover; a sealing ring (6) is provided on the inner side wall of the connecting rod channel; and the inner diameter of the connecting rod channel is the same as the outer diameter of the connecting rod (5); The material of the front pressure plate (2) is food-grade stainless steel, and the material of the sealing head (1) is food-grade silicone rubber.

2. A gas nozzle valve for a tank according to claim 1, characterized in that: The connecting rod (5), the cylinder connecting rod (11) and the supporting rod (9) are respectively connected to the connecting rod (10) via a pin shaft (8).

3. A gas nozzle valve for a tank according to claim 1, characterized in that: The nozzle valve body (3) and the outer cover (12) as well as the cylinder (13) and the outer cover (12) are fixedly connected via a connecting plate (7).

4. A gas nozzle valve for a tank according to claim 2, characterized in that: The gas nozzle valve is arranged on the side wall of the tank body, and the gas outlet (16) of the front pressure plate (2) is arranged inside the side wall of the tank body.

5. A gas nozzle valve for a tank according to claim 2, characterized in that: The gas nozzle valve is arranged on the side wall of the discharge valve, and the gas outlet (16) of the front pressure plate (2) is arranged in the side wall of the discharge valve.

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