Conical self-locking drip-proof filling valve

Abstract

The utility model relates to the technical fields of filling valve discloses a conical self -locking anti -drip filling valve, design includes tubular valve body, joint part and drive cylinder part, tubular valve body, joint part and drive cylinder part set from below to above in proper order, tubular valve body includes valve pipe and conical head, the conical sealing head is slidably arranged in tubular valve body, the conical sealing head is connected and fixed through valve stem between drive cylinder part, the valve stem is opened in and is equipped with accommodating cavity, the accommodating cavity is equipped with spring and impact pin, through the taper design of conical cavity surface and conical sealing head can effectively reduce the hanging liquid amount, again through the design impact pin in valve stem, utilize the impact activity seat of impact pin, again through activity seat the vibration of impact is transmitted from the thread rod of round head screw to round head at round head screw, and the hanging liquid vibration on round head falls off.

Description

Technical Field

[0001] This utility model relates to the technical field of filling valves, and in particular to a conical self-locking anti-drip filling valve. Background Technology

[0002] Filling valves are key equipment components used in the filling process of fluid materials, especially in the food industry, where they are commonly used for packaging and dispensing various fluids. While traditional filling valves (such as ball valves, butterfly valves, needle valves, and solenoid valves) can meet basic filling requirements to some extent, they have many problems in practical use. When closed, these valves are prone to leakage due to insufficient sealing performance. In the filling of some fruit juices, liquid residue often occurs. This leakage from the filling valve not only wastes liquid but can also contaminate packaging and the production line, affecting product quality and hygiene standards. Summary of the Invention

[0003] The purpose of this invention is to provide a conical self-locking anti-drip filling valve to solve the problem of easy liquid dripping from existing filling valves.

[0004] This utility model is achieved through the following technical solution:

[0005] A conical self-locking anti-drip filling valve includes a tubular valve body, a connector, and a drive cylinder. The tubular valve body, the connector, and the drive cylinder are arranged sequentially from bottom to top. The tubular valve body includes a valve tube and a conical head. A conical sealing head is slidably disposed within the tubular valve body. The conical sealing head is connected and fixed to the drive cylinder via a valve stem. A receiving cavity is formed within the valve stem. An impact pin and a spring are disposed within the receiving cavity. The spring is located above the impact pin.

[0006] In one possible embodiment, the drive cylinder portion is threadedly connected to the connector portion, and the connector portion is threadedly connected to the tubular valve body.

[0007] In one possible embodiment, the drive cylinder includes a cylinder body and a piston, the piston is slidably disposed in the cylinder body, two air pipe joints are provided at both ends of the cylinder body, the valve stem extends into the cylinder body and is fixedly connected to the piston, and a sealing ring is provided at the contact position between the valve stem and the joint.

[0008] In one possible embodiment, the conical sealing head includes a movable seat, a conical sealing body, and a round-headed screw. The movable seat includes a threaded rod head that is threadedly connected to the valve stem. The round-headed screw includes a threaded rod and a round head. The threaded rod is threadedly connected to the movable seat through a threaded hole located at the axial position of the movable seat. The conical sealing body has a through hole through which the threaded rod of the round-headed screw passes, thereby fixing the conical sealing body and the round-headed screw together on the movable seat.

[0009] In one possible embodiment, a liquid outlet is provided below the conical head, and the inner surface of the liquid outlet is a conical cavity surface with a taper range of 25-45°. The taper of the conical sealing body is 0.5-2° smaller than the taper of the conical cavity surface.

[0010] In one possible embodiment, the minimum circular cross-sectional diameter of the conical seal is greater than the diameter of the liquid outlet hole at the conical head.

[0011] In one possible embodiment, the drive cylinder section further includes a solenoid valve mounted at the air inlet above the cylinder.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] The tapered design of the conical cavity and the conical sealing head effectively reduces the amount of liquid dripping. Furthermore, the design of an impact pin inside the valve stem allows the impact pin to strike the movable seat, which then transmits the vibration from the threaded rod of the round-head screw to the round head, causing the liquid dripping from the round head to fall off. The liquid that falls off the round head falls into the bottle or packaging bag during filling. If the liquid does not fall off, it indicates that the drop of liquid will not easily fall off, greatly reducing the risk of the liquid dripping outside the bottle or packaging bag. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 for Figure 2 Sectional view at point AA;

[0018] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0019] The reference numerals in the attached drawings represent: 1-tubular valve body, 101-valve pipe, 102-conical head, 2-connector, 201-raw material pipe connector, 3-drive cylinder, 31-cylinder, 32-piston, 4-valve stem, 401-receiving cavity, 5-moving seat, 6-conical seal, 7-round head screw, 8-spring, 9-impact pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0021] Examples, such as Figures 1 to 4 As shown, a conical self-locking anti-drip filling valve includes a tubular valve body 1, a connector 2, and a drive cylinder 3. The tubular valve body 1, connector 2, and drive cylinder 3 are arranged sequentially from bottom to top. The tubular valve body 1 includes a valve tube 101 and a conical head 102. A conical sealing head is slidably disposed within the tubular valve body 1. This conical sealing head is connected and fixed to the drive cylinder 3 via a valve stem 4. A receiving cavity 401 is formed within the valve stem 401, and an impact pin 9 and a spring 8 are disposed within the receiving cavity 401. The spring 8 is located above the impact pin 9. During the closing and shut-off process of the filling valve, the drive cylinder 3 controls the conical sealing head to descend via the valve stem 4 to seal the conical head 102. During the descent of the head, the conical sealing head descends directly towards the conical head 102 under the push of the valve stem 4. The impact pin 9 remains fixed due to inertia, while the spring 8 is compressed by the obstruction of the impact pin 9 and the push of the valve stem 4. After the conical sealing head contacts and seals with the conical head 102, it stops moving downward. The impact pin 9 continues to descend under the elastic force of the spring 8 and its own gravity until it hits the conical sealing head. This impact will generate vibration, thereby knocking down any liquid that may be present below the conical sealing head. The knocked-down liquid falls into the bottle or packaging bag for filling. If it is not knocked down, it also indicates that the liquid will not fall easily, greatly reducing the risk of the liquid falling outside the bottle or packaging bag.

[0022] In this embodiment, the drive cylinder 3 is threadedly connected to the connector 2, and the connector 2 is threadedly connected to the tubular valve body 1, which facilitates the overall installation and disassembly operation. At the same time, it also facilitates the replacement of tubular valve bodies 1 of different lengths to adapt to different filling requirements.

[0023] In this embodiment, the driving cylinder 3 includes a cylinder body 31 and a piston 32. The piston 32 is slidably disposed inside the cylinder body 31. Two air pipe connectors are provided at both ends of the cylinder body 31. The valve stem 4 extends into the cylinder body 31 and is fixedly connected to the piston 32. A sealing ring is provided at the contact position between the valve stem 4 and the connector 2 to ensure that the gas in the cylinder body 31 does not enter the connector 2. The connector 2 is provided with a raw material pipe connector 201, through which a raw material pipe is connected to the outside, thereby filling the raw material.

[0024] In this embodiment, the conical sealing head includes a movable seat 5, a conical sealing body 6, and a round-headed screw 7. The movable seat 5 includes a threaded rod head, which is threadedly connected to the valve stem 4, thereby fixing the movable seat 5 to the valve stem 4. The round-headed screw 7 includes a threaded rod and a round head. The threaded rod is threadedly connected to the movable seat 5 through a threaded hole located at the axial position of the movable seat 5. The conical sealing body 6 has a through hole, through which the threaded rod of the round-headed screw 7 passes, thereby fixing the conical sealing body 6 and the round-headed screw 7 together on the movable seat 5. The round head of the round-headed screw 7 is the position most prone to liquid residue. The impact pin 9 impacts the movable seat 5, and the movable seat 5 transmits the impact vibration from the threaded rod of the round-headed screw 7 to the round head, causing the liquid residue on the round head to fall off.

[0025] Advantageously, the conical seal 6 is preferably made of food-grade silicone to ensure hygiene and safety.

[0026] In this embodiment, a liquid outlet is provided below the conical head 102. The inner surface of the liquid outlet is a conical cavity surface with a taper range of 25-45°. The taper of the conical sealing body 6 is 0.5-2° smaller than the taper of the conical cavity surface. When the conical sealing body 6 descends to seal, the position of the conical head 102 near the liquid outlet is sealed first. Then, under the push of the driving cylinder 3, the conical sealing body 6 is further compressed and deformed to completely fit the conical cavity surface of the conical head 102. This effectively ensures the sealing effect of the filling valve. Sealing the liquid outlet position of the conical head 102 first prevents the liquid between the conical surface of the entire conical sealing head and the conical cavity surface of the conical head 102 from being squeezed to the liquid outlet position, effectively reducing the amount of liquid hanging at the liquid outlet position.

[0027] Furthermore, the minimum circular cross-sectional diameter of the conical sealing body 6 is larger than the diameter of the liquid outlet hole at the conical head 102, so as to ensure that the conical sealing body 6 first cooperates with the liquid outlet hole to complete the seal.

[0028] In this embodiment, the drive cylinder 3 further includes a solenoid valve, which is installed at the air inlet above the cylinder. When the filling valve is closed, the solenoid valve closes to ensure the air pressure above the piston 32. This air pressure allows the piston 32 to continuously push the conical sealing head to maintain a tight fit with the conical cavity surface, effectively ensuring the sealing performance during self-locking.

[0029] Working principle;

[0030] Install the conical self-locking anti-drip filling valve on the filling equipment;

[0031] During filling, the piston 32 is pushed to the lower position to control the piston 32 to move upward. The piston 32 drives the conical sealing head to move upward through the valve stem 4, so that the liquid in the tubular valve body 1 is squeezed out from the liquid outlet of the conical head 102 and injected into the packaging bag or packaging bottle.

[0032] After filling is completed, the drive cylinder 3 controls the valve stem 4 to move downward. The valve stem 4 drives the conical sealing head to come into contact with the conical head 102. The lowest position of the conical sealing body 6 on the conical sealing head first comes into contact with the liquid outlet position of the conical head 102. The conical sealing body 6 then undergoes a slight deformation under the push of the valve stem 4, and comes into complete contact with the conical cavity surface of the conical head 102. During the downward movement of the valve stem 4, the impact pin 9 initially remains stationary due to inertia. The obstruction of the impact pin 9 compresses the spring 8, so that the impact pin 9 completes the downward movement process after the conical sealing head. After the impact pin 9 moves downward, it impacts the conical sealing head and generates vibration, which can effectively knock off the liquid hanging on the conical sealing head and effectively prevent liquid from hanging.

[0033] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A conical self-locking drip-proof filling valve comprising a tubular valve body (1), a joint portion (2) and a drive cylinder portion (3), characterized in that, The tubular valve body (1), the connector (2), and the drive cylinder (3) are arranged sequentially from bottom to top. The tubular valve body (1) includes a valve tube (101) and a conical head (102). A conical sealing head is slidably provided inside the tubular valve body (1). The conical sealing head is connected and fixed to the drive cylinder (3) through a valve stem (4). A receiving cavity (401) is provided inside the valve stem (4). An impact pin (9) and a spring (8) are provided inside the receiving cavity (401). The spring (8) is located above the impact pin (9).

2. A conical self-locking anti-dripping fill valve according to claim 1, characterized in that The drive cylinder part (3) is threadedly connected to the connector part (2), and the connector part (2) is threadedly connected to the tubular valve body (1).

3. A conical self-locking anti-dripping fill valve according to claim 1, characterized in that, The drive cylinder (3) includes a cylinder body (31) and a piston (32). The piston (32) is slidably disposed inside the cylinder body (31). Two air pipe joints are provided at both ends of the cylinder body (31). The valve stem (4) extends into the cylinder body (31) and is fixedly connected to the piston (32). A sealing ring is provided at the contact position between the rod of the valve stem (4) and the joint (2).

4. A conical self-locking anti-dripping fill valve according to claim 1, characterized in that, The conical sealing head includes a movable seat (5), a conical sealing body (6), and a round head screw (7). The movable seat (5) includes a threaded rod head, which is threadedly connected to the valve stem (4). The round head screw (7) includes a threaded rod and a round head. The threaded rod is threadedly connected to the movable seat (5) through a threaded hole located at the axial position of the movable seat (5). The conical sealing body (6) is provided with a through hole, through which the threaded rod of the round head screw (7) passes, thereby fixing the conical sealing body (6) and the round head screw (7) together on the movable seat (5).

5. A conical self-locking anti-dripping fill valve according to claim 4, characterized in that The conical head (102) has a liquid outlet hole below it. The inner surface of the liquid outlet hole is a conical cavity surface with a taper range of 25-45°. The taper of the conical sealing body (6) is 0.5-2° smaller than the taper of the conical cavity surface.

6. A conical self-locking anti-dripping fill valve according to claim 5, characterized in that The minimum circular cross-sectional diameter of the conical seal (6) is greater than the diameter of the liquid outlet hole at the conical head (102).

7. A conical self-locking anti-dripping fill valve according to claim 1, wherein The drive cylinder section (3) also includes a solenoid valve, which is installed at the air inlet above the cylinder.

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