Filling valve and filling equipment

Abstract

The utility model relates to a filling valve and filling equipment. The filling valve comprises a main valve body and an exhaust pipe. The main valve body is provided with a liquid injection channel and an air flow channel. The exhaust pipe comprises a pipe body and a sleeve, an exhaust channel is arranged in the pipe body, the pipe body penetrates through the liquid injection channel and is connected with the main valve body, and the exhaust channel is communicated with the airflow channel. A plurality of exhaust holes are formed in the pipe body, the sleeve is arranged on the periphery of the pipe body in a sleeving mode, the exhaust channel is communicated with the outside through one exhaust hole, and the sleeve is used for blocking the other exhaust holes. When the liquid injection level needs to be changed, the liquid level can be adjusted by directly adjusting the plugging position of the sleeve and opening the exhaust hole corresponding to the liquid level of the bottle, and the liquid level adjusting device has the advantages of being convenient to adjust the liquid level and beneficial to improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of filling production line technology, and in particular to a filling valve and filling equipment. Background Technology

[0002] The bottling production line is used for filling bottled water and bottled beverages. In related technologies, the filling valves used for filling bottled water and bottled beverages are mechanical filling valves, which utilize the relative movement between the bottle and the valve to control its opening and closing, eliminating the need for complex control circuits. The filling valve mainly consists of a main valve body and an exhaust pipe. The main valve body is used to introduce water or beverage into the bottle, while the exhaust pipe is used to expel air from the bottle. Simultaneously, the exhaust pipe also controls the liquid level in the bottle; when the water or beverage in the bottle submerges the air inlet of the exhaust pipe, air cannot escape, and filling stops. Since a bottling production line needs to fill bottles of various sizes, and different sizes correspond to different liquid levels, when changing bottle sizes, the length of the exhaust pipes on all filling valves needs to be adjusted to meet the corresponding liquid level requirements. Therefore, changing bottle sizes requires cutting the bottom of the exhaust pipe or replacing it with a longer exhaust pipe, which is time-consuming and detrimental to improving production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a filling valve and filling equipment that facilitates liquid level adjustment and improves production efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A filling valve is provided, comprising:

[0006] The main valve body is provided with a liquid injection channel for injecting liquid into the bottle and an airflow channel for discharging air from the bottle.

[0007] An exhaust pipe includes a pipe body and a sleeve. The pipe body has an exhaust channel extending through both ends. One end of the pipe body passes through the injection channel and is connected to the main valve body. The exhaust channel communicates with the airflow channel. The other end of the pipe body has multiple exhaust holes communicating with the exhaust channel. The multiple exhaust holes are spaced apart along the axial direction of the pipe body and are located outside the injection channel. The sleeve is fitted around the periphery of the pipe body. The exhaust channel communicates with the outside through one of the exhaust holes. The sleeve is used to block the other exhaust holes.

[0008] Furthermore, two exhaust holes are spaced apart on the pipe body, and the sleeve is used to selectively block one of the exhaust holes.

[0009] Furthermore, the inner wall of the sleeve is embedded with an elastic ring, and the periphery of the tube body is provided with an annular groove that mates with the elastic ring. The sleeve and the tube body are locked together by the elastic ring and the annular groove.

[0010] Furthermore, one end of the pipe body is provided with an external thread, and the pipe body is detachably connected to the main valve body through the external thread.

[0011] Furthermore, a limiting part is provided on the periphery of the pipe body, the limiting part being used to abut against the main valve body, and the limiting part being located near the external thread.

[0012] Furthermore, a buffer portion is provided around the periphery of the pipe body, the free end of the buffer portion extends in a direction away from the pipe body, the buffer portion is located near the vent hole, and the vent hole is located below the buffer portion.

[0013] Furthermore, a buffer surface is provided on the side of the buffer portion opposite to the vent hole, and the buffer surface is an arc surface.

[0014] Furthermore, the main valve body includes a first valve body, a second valve body, and a third valve body. The airflow channel includes a first airflow channel disposed on the first valve body and a second airflow channel disposed on the second valve body. One end of the second valve body is inserted into the first valve body, and the first airflow channel is connected to and communicates with the second airflow channel. One end of the third valve body is inserted into the first valve body, and the third valve body is located between the first valve body and the second valve body. The liquid injection channel includes a first liquid injection channel located between the first valve body and the second valve body and a second liquid injection channel located between the second valve body and the third valve body. The first liquid injection channel is connected to the second liquid injection channel. The exhaust pipe is connected to the second valve body, and the exhaust channel is connected to and communicates with the second airflow channel.

[0015] Furthermore, the first valve body and the third valve body are connected by a spring so that the third valve body can move elastically along the axial direction of the first valve body. The outer wall of the second valve body has a first inclined surface, and the inner wall of the third valve body has a second inclined surface. The second injection channel is located between the first inclined surface and the second inclined surface. The first inclined surface and the second inclined surface selectively abut against each other to control the opening and closing of the second injection channel.

[0016] A filling device is also provided, including an infusion device, a bottle conveying device, and a filling valve. The infusion device is connected to the main valve body of the filling valve and communicates with the injection channel of the main valve body. The bottle conveying device is used to transport the bottle to the bottom of the main valve body and connect the bottle mouth to the injection channel and airflow channel of the main valve body.

[0017] The advantages of this utility model compared to the prior art are:

[0018] This utility model discloses a filling valve and filling equipment, which features multiple vent holes on the vent pipe, each corresponding to a different liquid level. During production, when the liquid level needs to be changed, the sealing position of the sleeve is simply adjusted to open the vent hole corresponding to the liquid level on the bottle, thus achieving liquid level adjustment. Compared to existing technologies that require adjusting the length of the vent pipe or replacing the vent pipe, this method offers convenient liquid level adjustment and improves production efficiency. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a cross-sectional view of the filling valve in the closed state according to an embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional view of the filling valve in the open state according to an embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional view of the exhaust pipe according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Main valve body; 11. First valve body; 111. First airflow channel; 12. Second valve body; 121. Second airflow channel; 122. First inclined surface; 13. Third valve body; 131. Second inclined surface; 132. Dispensing nozzle; 14. Spring; 15. First injection channel; 16. Second injection channel; 17. Sealing ring; 2. Exhaust pipe; 21. Pipe body; 211. First exhaust hole; 212. Second exhaust hole; 213. Exhaust channel; 214. External thread; 215. Annular groove; 216. Limiting part; 217. Buffer part; 22. Sleeve; 23. Elastic ring; 3. Bottle mouth. Detailed Implementation

[0025] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 3As shown, this utility model provides a filling valve for filling bottles with liquids such as water and beverages. The filling valve includes a main valve body 1 and an exhaust pipe 2. The main valve body 1 is provided with an injection channel and an airflow channel. Liquid is injected into the bottle through the injection channel, and air is discharged from the bottle through the airflow channel. The exhaust pipe 2 is installed on the main valve body 1 and is used to connect the main valve body 1 to the bottle, so that air in the bottle can flow into the airflow channel of the main valve body 1 through the exhaust pipe 2. The exhaust pipe 2 includes a pipe body 21 and a sleeve 22. The pipe body 21 has a circular tube structure, and an exhaust channel 213 is provided inside the pipe body 21, which passes through both ends of the pipe body 21 axially. One end of the pipe body 21 passes through the injection channel and is connected and fixed to the main valve body 1 to install the pipe body 21 in the injection channel of the main valve body 1. The other end of the pipe body 21 extends to the outside of the injection channel, and the other end of the pipe body 21 can be inserted into the bottle. The upper end of the exhaust channel 213 is connected to the airflow channel in the main valve body 1. Multiple exhaust holes are provided at the end of the pipe body 21 opposite to the airflow channel (i.e., the lower end). These exhaust holes are located on the side wall of the pipe body 21 and are spaced apart along the axial direction of the pipe body 21. The exhaust channel 213 communicates with the outside of the pipe body 21 through the exhaust holes. The exhaust holes are located on the pipe body 21 outside the injection channel to prevent liquid from blocking the exhaust holes during injection. A sleeve 22 is fitted around the periphery of the pipe body 21 and is used to seal the exhaust holes. During injection, one exhaust hole remains open to the outside, meaning the exhaust channel 213 communicates with the outside through one exhaust hole, while the sleeve 22 seals the remaining exhaust holes.

[0027] Understandably, during liquid injection, the bottle neck 3 is inserted into the bottom of the main valve body 1, connecting the injection channel on the main valve body 1 with the inside of the bottle, and the lower end of the tube body 21 is inserted into the bottle. As liquid enters the bottle through the injection channel, air inside the bottle flows through the tube body 21 into the airflow channel of the main valve body 1, and is finally discharged to the outside through the airflow channel to maintain pressure balance inside the bottle. By providing an vent at the lower end of the tube body 21, during liquid injection, when the liquid level is lower than the vent pipe 2, air can be discharged through the lower end of the vent channel 213 and the unsealed vent. When the liquid level is higher than the vent pipe 2, air can be discharged through the unsealed vent until the liquid level submerges the vent. Therefore, multiple vents on the tube body 21 correspond to multiple liquid levels. During production, when it is necessary to change the injection liquid level, the sealing position of the sleeve 22 is directly adjusted, and the vent corresponding to the bottle's liquid level is opened to achieve liquid level adjustment. Compared to existing technologies that involve adjusting the length of the exhaust pipe or replacing the exhaust pipe, this method offers the advantages of convenient liquid level adjustment and improved production efficiency.

[0028] Specifically, refer to Figure 3As shown, the pipe body 21 has two vent holes, corresponding to two liquid levels. The two vent holes are a first vent hole 211 and a second vent hole 212, spaced apart along the axial direction of the pipe body 21. A sleeve 22 is fitted onto the lower end of the pipe body 21, selectively sealing either the first vent hole 211 or the second vent hole 212. The sleeve 22 has a cylindrical structure, fitting onto the pipe body 21 and sliding along its axial direction. An elastic ring 23 is embedded in the inner wall of the sleeve 22, and an annular groove 215, which mates with the elastic ring 23, is provided around the periphery of the pipe body 21. The sleeve 22 and the pipe body 21 are secured together by the elastic ring 23 and the annular groove 215. The elastic force of the elastic ring 23 is used to fix the sleeve 22 onto the pipe body 21. Correspondingly, there are two annular grooves 215, each corresponding to one of the two vent holes. For example, sliding the sleeve 22 upwards causes the elastic ring 23 to engage in the upper annular groove 215. At this time, the sleeve 22 covers the first vent 211, and the second vent 212 is open, meaning the liquid level in the bottle is at the second vent 212. Conversely, sliding the sleeve 22 downwards causes the elastic ring 23 to engage in the lower annular groove 215. At this time, the sleeve 22 covers the second vent 212, and the first vent 211 is open, meaning the liquid level in the bottle is at the first vent 211.

[0029] The upper end of the pipe body 21 is used to connect and fix it to the main valve body 1, and the upper end of the pipe body 21 is provided with an external thread 214. Correspondingly, the main valve body 1 is provided with a corresponding internal thread so that the pipe body 21 can be detachably connected to the main valve body 1 through the external thread 214. Since it is necessary to ensure that the exhaust channel 213 is connected and connected to the airflow channel of the main valve body 1 after the pipe body 21 is connected to the main valve body 1, positioning is required when installing the pipe body 21 and the main valve body 1. In this embodiment, a limiting part 216 is provided around the periphery of the pipe body 21. The limiting part 216 is annularly arranged around the periphery of the pipe body 21 and is integrally formed with the pipe body 21. The limiting part 216 is located near the external thread 214. Correspondingly, the main valve body 1 is provided with a positioning surface that cooperates with the limiting part 216. During installation, the pipe body 21 is screwed into the internal thread on the main valve body 1. When the limiting part 216 abuts against the positioning surface of the main valve body 1, it indicates that the pipe body 21 is installed in place. At this time, the exhaust channel 213 is connected to the airflow channel in the main valve body 1.

[0030] A buffer section 217 is also provided around the periphery of the pipe body 21, and the buffer section 217 is integrally formed with the pipe body 21. The buffer section 217 is annular, with one end of the outer ring of the buffer section 217 being a free end, which extends in a direction away from the pipe body 21. The buffer section 217 is located near the vent holes, and all vent holes are located below the buffer section 217. A buffer surface is provided on the side of the buffer section 217 away from the vent holes, and the buffer surface is an arc surface. This structure makes the buffer section 217 umbrella-shaped. The buffer surface of the buffer section 217 is used to guide the liquid to flow in the direction of the outer periphery of the pipe body 21, and the buffer section 217 can block the vent holes in the vertical direction to prevent the liquid from blocking the vent holes and affecting the venting when flowing down.

[0031] Specifically, refer to Figure 1 and Figure 2 As shown, the main valve body 1 includes a first valve body 11, a second valve body 12, and a third valve body 13. The first valve body 11 has a first airflow channel 111, one end of which communicates with the outside of the main valve body 1. One end of the second valve body 12 is inserted into the first valve body 11, and the other end extends to the outside of the first valve body 11. The second valve body 12 has a second airflow channel 121. One end of the second airflow channel 121 is connected to and communicates with one end of the first airflow channel 111. The exhaust pipe 2 is connected to the second valve body 12, and one end of the exhaust channel 213 is connected to and communicates with the end of the second airflow channel 121 that is away from the first airflow channel 111. During exhaust, the air inside the bottle is discharged to the outside sequentially through the exhaust channel 213, the second airflow channel 121, and the first airflow channel 111. In this embodiment, the first airflow channel 111 and the second airflow channel 121 constitute the airflow channels of the main valve body 1. One end of the third valve body 13 is inserted into the first valve body 11, and the third valve body 13 is located between the first valve body 11 and the second valve body 12. In this embodiment, the upper end of the second valve body 12 is located inside the first valve body 11, and the lower end is located inside the third valve body 13. The upper end of the exhaust pipe 2 passes through the third valve body 13 and is threadedly connected to the second valve body 12, and the lower end of the exhaust pipe 2 extends to the outside of the third valve body 13. A first injection channel 15 is formed between the first valve body 11 and the second valve body 12. The outer wall of the third valve body 13 is in contact with the inner wall of the first valve body 11, and a second injection channel 16 is formed between the inner wall of the third valve body 13 and the second valve body 12. The bottom end of the third valve body 13 has an outlet nozzle 132. The two ends of the second injection channel 16 are respectively connected to the first injection channel 15 and the outlet nozzle 132. In this embodiment, the channels inside the first injection channel 15, the second injection channel 16, and the outlet nozzle 132 together constitute the injection channel of the main valve body 1. During injection, the liquid enters the bottle sequentially through the first injection channel 15, the second injection channel 16, and the outlet 132.

[0032] This filling valve is a mechanical valve, meaning it uses its own mechanical structure to control the opening and closing of the valve, without the need for electrical control equipment. The first valve body 11 and the third valve body 13 are elastically connected by a spring 14. The outer wall of the second valve body 12 has a first inclined surface 122, and the inner wall of the third valve body 13 has a second inclined surface 131. Vertically, at least a portion of the projection of the second inclined surface 131 coincides with that of the first inclined surface 122. The second injection channel 16 is located between the first inclined surface 122 and the second inclined surface 131. The first inclined surface 122 and the second inclined surface 131 selectively abut against each other to control the opening and closing of the second injection channel 16. Specifically, when the spring 14 is in a free state, the first inclined surface 122 abuts against the second inclined surface 131, and the second injection channel 16 is in an open state. At this time, the entire filling valve is in a closed state. During injection, the bottle mouth 3 abuts against the third valve body 13 and pushes the third valve body 13 upwards, compressing the spring 14. Under the pushing action of the bottle, the first inclined surface 122 and the second inclined surface 131 are spaced apart, and the second liquid injection channel 16 is in a conductive state. At this time, the entire filling valve is in the open state. To ensure the sealing between the second valve body 12 and the third valve body 13, a sealing ring 17 is embedded on the first inclined surface 122, and the sealing ring 17 is located at the connection between the first inclined surface 122 and the second inclined surface 131.

[0033] like Figure 1 and Figure 2 As shown, this utility model also provides a filling device, including an infusion device, a bottle conveying device, a filling valve, and a frame. The infusion device and the bottle conveying device are mounted on the frame. The filling valve is installed at the outlet end of the infusion device, and the infusion device is connected to the filling valve through a pipe to deliver water or beverage to the filling valve. The infusion device is connected to the injection channel in the main valve body 1. The bottle conveying device is used to convey the bottle to the area below the filling valve. During injection, the filling valve descends so that the bottle mouth 3 connects to the injection channel and airflow channel of the main valve body 1.

[0034] In this embodiment, the filling process is as follows:

[0035] Step S1: Adjust the sleeve 22 in the vent pipe 2 to open the vent hole matching the liquid level. The bottle conveying device conveys the bottle to below the filling valve.

[0036] Step S2: The filling valve descends, the bottle mouth 3 abuts against the bottom of the second valve body 12, and the lower ends of the dispensing nozzle 132 and the vent pipe 2 are inserted into the bottle. Of course, there is relative movement between the bottle and the filling valve. In some embodiments, the bottle can also be driven to rise by a bottle conveying device to complete the docking between the bottle and the filling valve.

[0037] Step S3: Driven by the bottle, the filling valve is in the open position. The infusion device inputs liquid into the filling valve. The liquid enters the bottle along the first injection channel 15, the second injection channel 16, and the outlet 132. Figure 2 The direction of the middle arrow indicates the direction of liquid flow. At the same time, the air inside the bottle is discharged to the outside through the vent, vent channel 213, second airflow channel 121 and first airflow channel 111. Figure 1 The direction of the middle arrow indicates the direction of airflow.

[0038] Step S4: When the liquid reaches the vent, the vent cannot release air, and the liquid cannot continue to be poured in, thus completing the filling process. At this time, the filling valve separates from the bottle, and the spring 14 drives the second valve body 12 to move downward, thereby closing the second filling channel 16.

[0039] In this embodiment, since the position of the sleeve 22 on the vent pipe 2 only needs to be adjusted before liquid injection to open the vent hole of the corresponding liquid level, the conversion of different liquid levels can be completed. The operation is convenient and helps to improve the production efficiency of the entire production line.

[0040] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A filling valve, characterized in that, include: The main valve body is provided with a liquid injection channel for injecting liquid into the bottle and an airflow channel for discharging air from the bottle. An exhaust pipe includes a pipe body and a sleeve. The pipe body has an exhaust channel extending through both ends. One end of the pipe body passes through the injection channel and is connected to the main valve body. The exhaust channel communicates with the airflow channel. The other end of the pipe body has multiple exhaust holes communicating with the exhaust channel. The multiple exhaust holes are spaced apart along the axial direction of the pipe body and are located outside the injection channel. The sleeve is fitted around the periphery of the pipe body. The exhaust channel communicates with the outside through one of the exhaust holes. The sleeve is used to block the other exhaust holes.

2. The filling valve according to claim 1, characterized in that, The pipe body is provided with two vent holes at intervals, and the sleeve is used to selectively block one of the vent holes.

3. The filling valve according to claim 2, characterized in that, The inner wall of the sleeve is fitted with an elastic ring, and the periphery of the tube body is provided with an annular groove that mates with the elastic ring. The sleeve and the tube body are locked together by the elastic ring and the annular groove.

4. The filling valve according to claim 1, characterized in that, One end of the pipe body is provided with an external thread, and the pipe body is detachably connected to the main valve body through the external thread.

5. The filling valve according to claim 4, characterized in that, A limiting part is provided on the periphery of the pipe body, the limiting part is used to abut against the main valve body, and the limiting part is located near the external thread.

6. The filling valve according to claim 1, characterized in that, A buffer section is provided around the periphery of the pipe body. The free end of the buffer section extends in a direction away from the pipe body. The buffer section is located near the vent hole, and the vent hole is located below the buffer section.

7. The filling valve according to claim 6, characterized in that, The buffer section has a buffer surface on the side opposite to the vent hole, and the buffer surface is an arc surface.

8. The filling valve according to any one of claims 1 to 7, characterized in that, The main valve body includes a first valve body, a second valve body, and a third valve body. The airflow channel includes a first airflow channel disposed on the first valve body and a second airflow channel disposed on the second valve body. One end of the second valve body is inserted into the first valve body, and the first airflow channel is connected to and communicates with the second airflow channel. One end of the third valve body is inserted into the first valve body, and the third valve body is located between the first valve body and the second valve body. The liquid injection channel includes a first liquid injection channel located between the first valve body and the second valve body and a second liquid injection channel located between the second valve body and the third valve body. The first liquid injection channel is connected to the second liquid injection channel. The exhaust pipe is connected to the second valve body, and the exhaust channel is connected to and communicates with the second airflow channel.

9. The filling valve according to claim 8, characterized in that, The first valve body and the third valve body are connected by a spring so that the third valve body can move elastically along the axial direction of the first valve body. The outer wall of the second valve body has a first inclined surface, and the inner wall of the third valve body has a second inclined surface. The second injection channel is located between the first inclined surface and the second inclined surface. The first inclined surface and the second inclined surface selectively abut against each other to control the opening and closing of the second injection channel.

10. A filling device, characterized in that, The device includes an infusion device, a bottle delivery device, and a filling valve as described in any one of claims 1 to 9. The infusion device is connected to the main valve body of the filling valve and communicates with the injection channel of the main valve body. The bottle delivery device is used to transport the bottle to the bottom of the main valve body and connect the bottle mouth to the injection channel and the airflow channel of the main valve body.

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