CN113582113A

CN113582113A - Filling valve

Info

Publication number: CN113582113A
Application number: CN202110868888.0A
Authority: CN
Inventors: 史中伟; 史正; 吉永林; 王立忱
Original assignee: Hangzhou Zhongya Machinery Co Ltd
Current assignee: Hangzhou Zhongya Machinery Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-02

Abstract

The invention discloses a filling valve, wherein a valve body of the filling valve comprises a main body part and a mounting seat, the main body part is provided with a material conveying cavity, the mounting seat is provided with a switch cavity, a comprehensive cavity and a conveying channel, the comprehensive cavity is communicated with the switch cavity, the size of the comprehensive cavity is larger than the minimum size of the switch cavity, only one conveying channel is positioned on one side of the comprehensive cavity, the conveying channel is communicated with the comprehensive cavity, the mounting seat is provided with a tubular guide part, the guide part is positioned on the side of the mounting seat where the comprehensive cavity is arranged and extends along the central line of the comprehensive cavity, the guide cavity is arranged in the guide part and is communicated with the comprehensive cavity, and the size of the guide cavity is smaller than that of the comprehensive cavity. The filling valve greatly reduces the size of a discharge surface when the material is output by optimizing the structure required by gas transmission control, thereby providing technical support for filling gas-containing materials in small bottle mouth containers, and simultaneously, the structure of the filling valve is simplified, the assembly is convenient and fast, and the sealing performance is improved.

Description

Filling valve

Technical Field

The invention relates to a filling valve.

Background

The operation characteristics in the field of gas-containing beverage filling are very obvious, and the material filling is completed and the air pressure condition is balanced. Usually, the balance air pressure strip is a prerequisite for filling operation, so a gas transmission structure aiming at balance air pressure is designed inside the filling valve. The gas transmission structure is arranged on the blocking rod of the filling valve, so that the space can be saved to the greatest extent, and the shortest conveying path can be conveniently established with the material storage component. This forces the end structure of the plugging rod and the working environment to be favorable for the gas transmission mode of gas discharging from the middle of the plugging rod. However, the blocking rod structure can promote the material to flow around the blocking rod after being matched with the air transmission control, the material is sprayed out in a scattered mode in a large area in the filling process, and the filling structure cannot be used for containers with small bottle mouth sizes. Therefore, the filling valve suitable for gas-containing filling valves in the prior art has the defect of large discharge surface.

Disclosure of Invention

The invention aims to solve the technical problem of reducing the discharge surface of a filling valve for filling gas-containing materials.

In order to solve the technical problems, the invention adopts the following technical scheme: the filling valve comprises a valve body and a blocking rod, wherein the blocking rod is positioned inside the valve body, the valve body comprises a main body part and a mounting seat, the main body part is fixedly connected with the mounting seat, the main body part is provided with a material conveying cavity with a circular cross section, the mounting seat is provided with a switch cavity corresponding to the blocking rod, the width of the switch cavity is gradually reduced along the direction of the central line of the switch cavity and in the direction away from the main body part, the material conveying cavity is communicated with the switch cavity to form a valve cavity, the blocking rod is positioned in the valve cavity, the mounting seat is further provided with a comprehensive cavity and a conveying channel, the comprehensive cavity is communicated with the switch cavity, the size of the comprehensive cavity is larger than the minimum size of the switch cavity, only one conveying channel is positioned at one side of the comprehensive cavity, the conveying channel is communicated with the comprehensive cavity, and the mounting seat is provided with a tubular guide part, the guide position is located on the side of the installation seat where the comprehensive cavity is arranged and extends along the central line of the comprehensive cavity, the guide cavity is arranged inside the guide position and is communicated with the comprehensive cavity, the size of the guide cavity is smaller than that of the comprehensive cavity, the installation seat is provided with a fixed sleeve and a sealing gasket, the fixed sleeve and the sealing gasket are both of annular structures on the whole, the installation seat is provided with an annular installation bulge, the fixed sleeve is embedded into the installation bulge, the end part of the guide position and the end part of the fixed sleeve are arranged on the central line of the guide cavity in a staggered manner, the sealing gasket is embedded inside the fixed sleeve, the sealing gasket is provided with a first sealing operation position and a second sealing operation position, the first sealing operation position is provided with a circular ring surface, the circular ring surface is located on the outer side of the guide position and is located between the fixed sleeve and the guide position, the second sealing operation part protrudes from the end of the fixing sleeve, and the distance from the first sealing operation part to the central line of the guide cavity is smaller than the distance from the second sealing operation part to the central line of the guide cavity.

The valve body structure of filling valve adopts integrated configuration among this technical scheme, and each part can independently process, is convenient for form comparatively responsible structure on the valve body of filling valve from this. The main function of the valve body is consistent with that of the filling valve in the prior art, and the difference lies in that the mounting seat of the valve body in the technical scheme can obtain the structure of a comprehensive cavity, a conveying channel and a guide cavity and is assembled with a fixing sleeve and a sealing gasket. Compared with the valve body structure in the prior art, the valve body structure after the implementation of the technical scheme is obviously simplified, and convenience is provided for production and assembly. The space required by gas transmission control is provided by the comprehensive cavity and the conveying channel, and the blocking rod structure no longer needs to meet the requirement of gas transmission control, so that the blocking rod structure can be minimized, the material flows through the end part of the blocking rod and is not blocked and scattered, and the size of the discharge surface after the material is output is reduced thoroughly. On the other hand, the cross section of the material after flowing, namely the discharge surface, under the combined action of the comprehensive cavity and the guide cavity can be further restrained to become smaller. The guide part is used as a lower edge structure of the mounting seat and can directly extend into a bottleneck of the container in the filling operation, so that the size of the discharge surface is reduced, a higher distribution effect can be obtained, splashing and overflowing are prevented, structural gaps at the tail end of the material conveying path can be reduced, and the fewer the gaps are, the better the sanitation level is. Moreover, thanks to the structural design of the guide part, a mounting structure can be provided for the gasket, so that the gasket in the technical scheme adopts the gasket with an integrated structure, and one gasket provides sealing effects at two parts. The sealing gasket structure can provide a wrapping type sealing effect for the bottle mouth part after being optimized, namely, the sealing effect is obtained at the end part of the bottle mouth and the side part of the bottle mouth, and even if material overflow occurs, the fault severity can be reduced.

The closer the combination degree of the main body part and the installation seat is, the more the structural stability of the valve body can be ensured, and the optimal design idea that the main body part and the installation seat can be combined at the combination part through the maximum contact surface is. Just need be for required structure consideration of transfer passage and outside gas transmission pipeline intercommunication in this design, main part position is equipped with auxiliary passage among this technical scheme, auxiliary passage and transfer passage intercommunication, main part position externally mounted has the conveyer pipe, the one end of conveyer pipe is fixed on main part position, the inside and auxiliary passage intercommunication of conveyer pipe. Therefore, a stable valve body connecting structure can be obtained under the condition of meeting the gas transmission control requirement.

The mounting seat adopts an integral structure, threads can be applied to the inside of the mounting protrusion by processing the structure with the mounting protrusion, and the fixing sleeve is fixedly connected with the mounting protrusion through thread matching. This connection is advantageous for controlling the initial compression state of the gasket, so that the gasket can obtain an optimal working state.

The sealing gasket provides sealing effects at two positions, specifically, a first sealing operation position provides a sealing effect for a bottle opening, and a second sealing operation position provides a baffle plate required for establishing a cleaning loop and a valve body to establish a sealing effect when cleaning operation is carried out. Because the filling valve working space is small, the valve outer part and the filling valve can move in a narrow space when combined, the baffle plate moves to the second sealing working position of the sealing gasket through an inclined motion path, and therefore the sealing gasket is stressed in the inclined direction, and the deformation trends of all the positions of the sealing gasket are inconsistent. In the technical scheme, the cross section of the second sealing operation part is of a pointed structure, and the tip of the second sealing operation part faces to the central line of the guide cavity, so that the sealing gasket can play a consistent deformation effect on each part under the condition that the second sealing operation part is obliquely stressed, and a stable sealing effect is achieved.

In order to limit the compression state and the deformation direction of the sealing gasket, a limiting groove I is formed in the outer portion of the guiding portion, and the end portion of the first sealing operation portion is embedded into the limiting groove I. The design can fully ensure that the first sealing operation part can participate in the sealing operation in a plane posture all the time.

In order to limit the deformation direction of the sealing gasket and fix the sealing gasket, the inner side of the fixing sleeve is provided with a limiting protrusion, the sealing gasket is provided with a limiting groove II, and the limiting protrusion is embedded into the limiting groove II. This controls the deformation direction of the second sealing work site in the direction parallel to the center line of the guide cavity to the maximum extent; in addition, the connecting structure of the fixed sleeve embedded in the sealing gasket also tends to increase the connecting degree of the fixed sleeve and the sealing gasket.

In order to enable the deformation direction of the sealing gasket to be limited and guided at the same time, the limiting protrusion is provided with a guide surface, the guide surface is inclined to the central line of the guide cavity, the limiting groove II is divided into deformation buffer areas after the limiting protrusion is embedded into the limiting groove II, and the sizes of the deformation buffer areas are gradually increased in the extending direction of the central line of the guide cavity. The buffer area can contain the deformed sealing gasket, the deformation of the sealing gasket is released, the second sealing operation part can be urged to be close to the position of the central line of the guide cavity, and even if the bottle mouth of the container is just butted with the first sealing operation part or a baffle plate required by establishing a cleaning loop is butted with the second sealing operation part, the sealing effect is improved.

The invention adopts the technical scheme that: the filling valve greatly reduces the size of a discharge surface when the material is output by optimizing the structure required by gas transmission control, thereby providing technical support for filling gas-containing materials in small bottle mouth containers, and simultaneously, the structure of the filling valve is simplified, the assembly is convenient and fast, and the sealing performance is improved.

Drawings

The present invention will be described in more detail with reference to the accompanying drawings and embodiments.

FIG. 1 is a schematic view of a filling valve according to the present invention;

fig. 2 is a partially enlarged view of fig. 1.

Detailed Description

As shown in fig. 1 and 2, the filling valve mainly comprises a valve body and a blocking rod 1. The valve body comprises a main body part 2, a mounting seat 3, a feeding pipe 4, a supporting seat 5 and a cylinder 6.

The main body part 2 and the feeding pipe 4 are both of tubular structures. The main body part 2 is provided with a material conveying cavity 7 with a circular cross section, the feeding pipe 4 is fixedly connected with the main body part 2, a cavity is arranged in the feeding pipe 4, and the cavity is jointly divided by the diaphragm and the blocking rod 1 to form a region with one part communicated with the material conveying cavity 7 and a region with the other part isolated from the material conveying cavity 7. Supporting seat 5 is fixed on inlet pipe 4, and 6 fixed mounting of cylinder are on supporting seat 5, and the piston rod and the stifled pole 1 of cylinder 6 are connected. The main part 2 is fixedly connected with the mounting seat 3, the mounting seat 3 is provided with a switch cavity 8 corresponding to the blocking rod 1, and the width of the switch cavity 8 is gradually reduced along the direction of the central line of the switch cavity 8 and in the direction far away from the main part 2. The material conveying cavity 7 is communicated with the switch cavity 8 to form a valve cavity of the valve body, the blocking rod 1 is positioned in the valve cavity, and the valve cavity is a working area of the blocking rod 1.

The mounting seat 3 is also provided with a comprehensive cavity 9 and a conveying channel 10, the comprehensive cavity 9 is communicated with the switch cavity 8, and the size of the comprehensive cavity 9 is larger than the minimum size of the switch cavity 8. The mounting base 3 is provided with a conveying channel 10, only one conveying channel 10 is positioned at one side of the comprehensive cavity 9, and the conveying channel 10 is communicated with the comprehensive cavity 9. The main body part 2 is provided with an auxiliary channel 11, the auxiliary channel 11 being located in the extension direction of the conveying channel 10 and the auxiliary channel 11 communicating with the conveying channel 10. The main body part 2 is externally provided with a delivery pipe 12, one end of the delivery pipe 12 is fixed on the main body part 2, the interior of the delivery pipe 12 is communicated with the auxiliary channel 11, and the delivery pipe 12 is communicated with a gas delivery air pipeline and other pipelines for delivering liquid when in use. The mounting socket 3 is provided with a tubular guide portion 13, the guide portion 13 being located on the side of the mounting socket 3 where the comprehensive cavity 9 is provided and the guide portion 13 extending along the centre line of the comprehensive cavity 9. A guide cavity 14 is arranged in the guide part 13, the guide cavity 14 is communicated with the comprehensive cavity 9, and the size of the guide cavity 14 is smaller than that of the comprehensive cavity 9.

The mounting seat 3 is provided with a fixing sleeve 15 and a sealing gasket 16. The fixing sleeve 15 and the sealing gasket 16 are both in an annular structure on the whole, an annular mounting protrusion 17 is arranged on the mounting base 3, the fixing sleeve 15 is fixedly connected with the mounting protrusion 17 through thread fit, and the fixing sleeve 15 is embedded in the mounting protrusion 17. The ends of the guide portion 13 and the end of the fixing sleeve 15 are arranged offset on the center line of the guide cavity 14. The sealing gasket 16 is embedded inside the fixing sleeve 15; the gasket 16 is provided with a first sealing operation site 18 and a second sealing operation site 20, the first sealing operation site 18 is provided with a circular ring surface 19, the circular ring surface 19 is positioned outside the guide site 13 and the circular ring surface 19 is positioned between the fixed sleeve 15 and the guide site 13; the second sealing operation 20 projects at the end of the fixing sleeve 15, the first sealing operation 18 being at a smaller distance from the centre line of the guide cavity 14 than the second sealing operation 20. The second sealing operation site 20 has a pointed cross-section, and the tip of the second sealing operation site 20 faces the center line of the guide cavity 14.

The guide portion 13 is provided with a stopper groove i 21 at the outside thereof, and the end of the first sealing operation portion 18 is fitted into the stopper groove i 21. The inner side of the fixed sleeve 15 is provided with a limiting protrusion 22, the sealing gasket 16 is provided with a limiting groove II 23, and the limiting protrusion 22 is embedded into the limiting groove II 23. The limiting bulge 22 is provided with a guide surface 24, the guide surface 24 is inclined to the central line of the guide cavity 14, the limiting groove II 23 is divided into deformation buffer areas 25 after the limiting bulge 22 is embedded into the limiting groove II 23, and the sizes of the deformation buffer areas 25 are gradually increased in the extending direction of the central line of the guide cavity 14 and in the direction away from the main body part 2.

In the initial state, the stopper rod 1 protrudes into the switching cavity 8 and is tightly connected to the mounting seat 3, so that the entire filling valve is in the closed state. When in work, materials enter the valve cavity from the feeding pipe 4; the delivery pipe 12 is communicated with a gas delivery control pipeline and other pipelines for delivering liquid; the container is arranged at the position of the sealing gasket 16, the guide part 13 extends into the container, the bottleneck position of the container and the annular surface 19 of the first sealing operation part 18 of the sealing gasket 16 are planes, the annular surface 19 is in tight connection with the container when the sealing gasket 16 is positioned on the annular surface 19, and the second sealing operation part 20 is gathered to the side surface of the bottleneck of the container after the extruded sealing gasket 16 is subjected to guiding deformation, so that a further sealing effect is obtained. After the blocking rod 1 and the mounting base 3 are separated, materials firstly enter the comprehensive cavity 9 to be collected, so that the cross section of the materials in a material conveying state is small, namely, a discharging surface is small, then the materials are output into the container through the guide cavity 14, and in the process, gas is introduced into the conveying pipe 12 to maintain the balance of filling pressure.

Claims

1. The utility model provides a filling valve, this filling valve includes valve body, stifled pole (1) is located inside the valve body, its characterized in that: the valve body comprises a main body part (2) and a mounting seat (3), the main body part (2) is fixedly connected with the mounting seat (3), the main body part (2) is provided with a material conveying cavity (7) with a circular cross section, the mounting seat (3) is provided with a switch cavity (8) corresponding to the blocking rod (1), the width of the switch cavity (8) is gradually reduced along the central line direction of the switch cavity and in the direction far away from the main body part (2), the material conveying cavity (7) is communicated with the switch cavity (8) to form a valve cavity, the blocking rod (1) is positioned in the valve cavity, the mounting seat (3) is further provided with a comprehensive cavity (9) and a conveying channel (10), the comprehensive cavity (9) is communicated with the switch cavity (8), the size of the comprehensive cavity (9) is larger than the minimum size of the switch cavity (8), only one conveying channel (10) is positioned on one side of the comprehensive cavity (9), conveying passageway (10) and synthesis cavity (9) intercommunication, be equipped with pipy guide position (13) on mount pad (3), guide position (13) are located this side that mount pad (3) were equipped with synthesis cavity (9) and guide position (13) extend along the central line of synthesis cavity (9), guide position (13) inside is equipped with guide cavity (14), guide cavity (14) and synthesis cavity (9) intercommunication, the size of guide cavity (14) is less than the size of synthesis cavity (9), install fixed cover (15) and sealed pad (16) on mount pad (3), fixed cover (15) and sealed pad (16) all are annular structure on the whole, be equipped with annular installation arch (17) on mount pad (3), fixed cover (15) embedding is in installation arch (17), the tip of guide position (13) and the tip of fixed cover (15) are at the central line of guide cavity (14) Go up the staggered arrangement, sealed pad (16) embedding is inside fixed cover (15), sealed pad (16) are equipped with first sealed operation position (18) and the sealed operation position of second (20), first sealed operation position (18) are equipped with torus (19), torus (19) are located the outside of guide position (13) and torus (19) are located between fixed cover (15) and guide position (13), the sealed operation position of second (20) protrusion is at the tip of fixed cover (15), the distance of the central line of first sealed operation position (18) to guide cavity (14) is less than the distance of the central line of second sealed operation position (20) to guide cavity (14).

2. The filling valve of claim 1, wherein: the main part (2) is equipped with auxiliary passage (11), auxiliary passage (11) and transfer passage (10) intercommunication, main part (2) externally mounted has conveyer pipe (12), the one end of conveyer pipe (12) is fixed on main part (2), conveyer pipe (12) inside and auxiliary passage (11) intercommunication.

3. The filling valve of claim 1, wherein: the fixed sleeve (15) is fixedly connected with the mounting protrusion (17) through thread fit.

4. The filling valve of claim 1, wherein: the cross section of the second sealing operation part (20) is in a pointed structure, and the tip of the second sealing operation part (20) faces to the central line of the guide cavity (14).

5. The filling valve of claim 1, wherein: the guide part (13) is externally provided with a limiting groove I (21), and the end part of the first sealing operation part (18) is embedded into the limiting groove I (21).

6. The filling valve of claim 1, wherein: fixed cover (15) inboard is equipped with spacing arch (22), be equipped with spacing groove II (23) on sealed pad (16), spacing arch (22) are embedded into in spacing groove II (23).

7. The filling valve of claim 6, wherein: the limiting structure is characterized in that a guide surface (24) is arranged on the limiting protrusion (22), the guide surface (24) is inclined to the central line of the guide cavity (14), the limiting groove II (23) is divided into deformation buffer areas (25) after the limiting protrusion (22) is embedded into the limiting groove II (23), and the sizes of the deformation buffer areas (25) are gradually increased in the extending direction of the central line of the guide cavity (14) and in the direction away from the main body part (2).