Filling device and filling method thereof

Abstract

The invention relates to the technical field of liquid filling, in particular to a filling device and a filling method.The filling device comprises a fixing part, a driving part, a filling part, a first sealing part, a stopping part and a second sealing part, the driving part is connected with the fixing part, the driving end of the driving part is connected with the filling part, and the stopping part is connected with the second sealing part; the first sealing part is located at the outlet end of the filling part, the distance between the side, close to the outlet end of the filling part, of the blocking part and the outlet end of the filling part is d, and the second sealing part is connected with the filling part and located at the outlet end of the fixing part. The first sealing part and the second sealing part are matched with each other to achieve opening and closing of the whole filling device, in the filling process, the filling container abuts against the outlet end of the fixing part, liquid splashing can be effectively blocked, after filling is completed, due to double sealing of the first sealing part and the second sealing part, the sealing effect is good, and the sealing effect is good. Therefore, no liquid remains at the outlet end of the fixing part, and waste of filling liquid is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid filling, in particular to a filling device and a filling method thereof. BACKGROUND

[0002] Liquid filling refers to a process of filling liquid products (such as beverages, medicines, cosmetics, edible oils, chemicals, etc.) into containers (such as bottles, cans, bags, barrels, etc.) in a quantitative manner. It is a key link in the packaging industry and is widely used in food, pharmaceutical, daily chemical, chemical and other industries. Therefore, there is an urgent need for a filling device and a filling method thereof.

[0003] At present, during liquid filling, the following problems may exist: 1. After each filling is completed, the filling nozzle often has residual liquid. This part of liquid, which has not been filled into the container, may drip onto the surface of the filling container or the ground. This part of dripping liquid increases the production cost and may also dirty the filling container, increasing the workload of the packaging personnel. 2. Since the filling nozzle (i.e. the filling pipe) has a certain distance from the filling container and the liquid pressure of the filling nozzle is relatively large, the impact force generated when the liquid enters the filling container during filling may cause the liquid to splash, which may easily cause waste of the liquid. 3. The filling device is relatively complex, which may affect the liquid filling efficiency. SUMMARY

[0004] In view of the above-mentioned shortcomings in the prior production technology, the present application provides a filling device and a filling method thereof. Through improvement of the liquid filling method, it is ensured that the liquid does not splash during filling and that the filling outlet end does not have residual liquid after filling is completed, so as to avoid waste of the filling liquid.

[0005] The technical solution adopted by the present application is as follows: A filling device, comprising: a fixed part, a driving part, a filling part, a first sealing part, a blocking part and a second sealing part, the fixed part being a hollow structure, the driving part being connected with the fixed part, the driving end of the driving part being connected with the filling part, the driving part being used to drive the filling part to move towards or away from the filling container, the first sealing part being located at the position of the outlet end of the filling part, the distance between the side close to the outlet end of the filling part of the blocking part and the outlet end of the filling part being d, the blocking part being used to drive the first sealing part to move towards or away from the filling container, so as to realize opening and closing of the outlet end of the filling part, the second sealing part being connected with the filling part and located at the position of the outlet end of the fixed part, the filling part being used to drive the second sealing part to move towards or away from the filling container, so as to realize opening and closing of the outlet end of the fixed part.

[0006] Thus, through the mutual cooperation of the double sealing of the first sealing part and the second sealing part, the opening and closing of the entire filling device is realized. Compared with the existing filling mode, the structure is simple and convenient to operate. During the filling process, the filling container abuts against the outlet end of the fixing part, which can effectively block the splashing of the liquid. After filling is completed, the double sealing of the first sealing part and the second sealing part can prevent the outlet end of the fixing part from remaining liquid, thereby avoiding waste of the filling liquid. In addition, the accommodation space between the first sealing part and the second sealing part can temporarily store residual liquid, thereby further preventing liquid dripping from the outlet end of the fixing part and further avoiding waste of the filling liquid. At the same time, the temporarily stored residual liquid can be shaken out under the movement of the second sealing part during the next filling of the liquid, thereby preventing the residual liquid from causing liquid accumulation. At the same time, the distance between the side of the blocking part close to the outlet end of the filling part and the outlet end of the filling part is d, so that the opening and closing of the first sealing part and the second sealing part are not simultaneous (i.e., during filling, the second sealing part is opened first and the first sealing part is opened later, and during sealing, the first sealing part is closed first and the second sealing part is closed later). The purpose of this is to utilize the time difference between the opening and closing of the first sealing part and the second sealing part to reduce residual liquid.

[0007] As a further improvement of the above technical solution: the side wall of the fixing part is provided with a first through hole, and the filling part penetrates through the first through hole and is in sliding connection with the fixing part.

[0008] As a further improvement of the above technical solution: the filling part is provided with a first support rod, the first support rod penetrates through the first through hole and is connected with the second sealing part, and the cross-sectional shape of the outlet end of the filling part is conical. Thus, through the first support rod, the entire filling device can realize the simultaneous movement (i.e., simultaneously in the opened state or simultaneously in the closed state) of the first sealing part and the second sealing part by only one driving part. On the one hand, this can improve the filling efficiency of the entire filling device, reduce the volume of the entire filling device, enhance the integration of the entire filling device, improve the space utilization, and on the other hand, it can also improve the coordination of the filling action and the sealing action of the two sealing parts of the entire filling device. Thus, the anti-splashing effect and the anti-dripping effect of the liquid in the entire filling device are improved, and the sealing effect of the entire filling device is further improved. The cross-sectional shape of the outlet end of the filling part is conical, which can guide and position the movement of the first sealing part, so as to facilitate the sealing between the conical outlet end of the filling part and the first sealing part (i.e., to facilitate the close cooperation between the conical outlet end of the filling part and the first sealing part).

[0009] As a further improvement of the above technical solution: the first support rod is connected with the second sealing part through a transmission mechanism; the transmission mechanism comprises a first transmission rod and a second transmission rod, one end of the first transmission rod is rotatably connected with the fixed part, the other end of the first transmission rod is connected with one end of the second transmission rod, the other end of the second transmission rod is connected with the second sealing part, the first transmission rod is provided with a sliding groove, the first support rod is inserted into the sliding groove and is slidably connected with the first transmission rod. Thus, since one end of the first transmission rod is rotatably connected with the fixed part and the first support rod is slidably connected with the first transmission rod, the linear motion generated by the driving part can be converted into the arc motion of the second sealing part (i.e. the driving part drives the first support rod to move towards or away from the side of the filling container, and the second sealing part rotates around one end of the first transmission rod and the rotation direction is away from or towards the side of the fixed part), so that during filling, the second sealing part is located obliquely below the outlet end of the fixed part rather than directly below the outlet end, and the liquid to be filled is directly filled into the filling container from the outlet end of the fixed part without being blocked by the second sealing part, on the one hand, it can further avoid splashing during liquid filling, and on the other hand, it can avoid waste of liquid.

[0010] As a further improvement of the above technical solution: the resistance part comprises a resistance block and a support block, the distance between the side of the resistance block close to the outlet end of the filling part and the outlet end of the filling part is d, the cross-sectional shape of the upper end of the resistance block is conical, the resistance block is connected with the support block through a second support rod, and the support block is connected with the fixed part. Thus, the cross-sectional shape of the upper end of the resistance block is conical, which can guide the flow of the filled liquid to further improve the filling efficiency of the liquid.

[0011] As a further improvement of the above technical solution: the sealing seat is provided with a second through hole and a third through hole on the side away from the fixed part, the second through hole is provided at the position of the sealing seat relative to the outlet end of the filling part, the cross-sectional shape of the second through hole is conical, the third through hole is located on one side of the second through hole, the first transmission rod penetrates through the third through hole, one end of the first transmission rod is rotatably connected with the sealing seat, and the second sealing part abuts against the sealing seat. Therefore, the purpose of designing the second through hole with a conical cross-sectional shape is to further store the remaining liquid to reduce the amount of liquid overflow when the second sealing part is sealed; by designing the third through hole, on the one hand, the third through hole provides a movement space for the movement of the transmission mechanism and the first support rod to ensure that the movement of the transmission mechanism and the first support rod does not interfere with the sealing seat, on the other hand, the third through hole serves as a communication medium between the filling container and the external environment, which can discharge the gas in the filling container during filling (i.e. if the third through hole is not provided, the gas in the filling container can only enter the fixed part through the second through hole when filling starts, thus forming bubbles in the fixed part, which affects the filling of the liquid).

[0012] As a further improvement of the above technical solution: the sealing seat is provided with a second through hole and a third through hole on the side away from the fixed part, the second through hole is provided at the position of the sealing seat relative to the outlet end of the filling part, the cross-sectional shape of the second through hole is conical, the third through hole is located on one side of the second through hole, the first transmission rod penetrates through the third through hole, one end of the first transmission rod is rotatably connected with the sealing seat, and the second sealing part abuts against the sealing seat. Therefore, the purpose of designing the second through hole with a conical cross-sectional shape is to further store the remaining liquid to reduce the amount of liquid overflow when the second sealing part is sealed; by designing the third through hole, on the one hand, the third through hole provides a movement space for the movement of the transmission mechanism and the first support rod to ensure that the movement of the transmission mechanism and the first support rod does not interfere with the sealing seat, on the other hand, the third through hole serves as a communication medium between the filling container and the external environment, which can discharge the gas in the filling container during filling (i.e. if the third through hole is not provided, the gas in the filling container can only enter the fixed part through the second through hole when filling starts, thus forming bubbles in the fixed part, which affects the filling of the liquid).

[0013] It should be noted that a second sealing ring (i.e. an O-shaped sealing ring) is provided between the sealing seat and the support block.

[0014] A filling method of a filling device, comprising the following steps: S1, abutting the filling container on the side of the fixed part away from the driving part, and connecting the outlet end of the liquid storage tank to be filled with the inlet end of the filling part; S2, when filling the liquid, the driving part drives the filling part to move towards the side close to the filling container, sequentially opening the outlet end of the fixed part and the outlet end of the filling part, the liquid to be filled flows out from the storage tank, sequentially passes through the filling part and the fixed part, and then is filled into the filling container through the outlet end of the fixed part; S3, when the liquid filling is completed, the driving part drives the filling part to move away from the filling container, and sequentially closes the outlet end of the fixed part and the outlet end of the filling part.

[0015] As a further improvement of the above technical solution, the S2 comprises the following steps: S2-1, the driving part drives the filling part to move towards the filling container, so that the outlet end of the filling part moves towards the side of the blocking block, and under the cooperation of the transmission mechanism, the second sealing part moves away from the outlet end of the fixed part; S2-2, to open the outlet end of the fixed part; S2-3, after the outlet end of the fixed part is opened, the first sealing part abuts against the blocking block and the first sealing part is separated from the outlet end of the filling part, so as to open the outlet end of the filling part; S2-4, the liquid to be filled flows out from the storage tank, passes through the filling part and the fixed part in sequence, and is filled into the filling container through the outlet end of the fixed part.

[0016] As a further improvement of the above technical solution, the S3 comprises the following steps: S3-1, the driving part drives the filling part to move away from the filling container, so that the outlet end of the filling part moves away from the side of the blocking block, and under the cooperation of the transmission mechanism, the second sealing part moves towards the outlet end of the fixed part; S3-2, to close the outlet end of the fixed part; S3-3, after the outlet end of the fixed part is closed, the first sealing part is separated from the blocking block and the first sealing part abuts against the outlet end of the filling part, so as to close the outlet end of the filling part.

[0017] The beneficial effects of the present application are as follows: The application realizes the opening and closing of the whole filling device through the cooperation of the first sealing part and the second sealing part, compared with the existing filling mode, the mode has simple structure and is convenient to operate, in the filling process, the filling container abuts against the outlet end of the fixing part, which can effectively block the splashing of liquid, after filling is completed, the double sealing of the first sealing part and the second sealing part can prevent the outlet end of the fixing part from remaining liquid, so as to avoid waste of filling liquid; in addition, the accommodation space between the first sealing part and the second sealing part can temporarily store residual liquid, so as to further avoid liquid dripping from the outlet end of the fixing part, thereby further avoiding waste of filling liquid, at the same time, the part of the residual liquid temporarily stored can be shaken out under the movement of the second sealing part when filling liquid next time, which can prevent the part of the residual liquid from causing liquid accumulation; at the same time, the distance between the side of the resisting part close to the outlet end of the filling part and the outlet end of the filling part is d, so that the opening and closing of the first sealing part and the second sealing part are not performed at the same time (i.e. the second sealing part is opened first and the first sealing part is opened later during filling, and the first sealing part is closed first and the second sealing part is closed later during sealing), the purpose of this is to utilize the time difference between the opening and closing of the first sealing part and the second sealing part to reduce residual liquid.

[0018] The application also includes the following advantages: 1. The purpose of the first sealing part sealing from the inside of the filling part is to utilize the gravity of the first sealing part itself to realize sealing, so as to reduce the risk of liquid leakage; the purpose of the second sealing part sealing from the outside of the fixing part is to utilize the external transmission mechanism to seal the outlet end of the fixing part (i.e. the second sealing part closely cooperates with the fixing part), so as to reduce the risk of liquid leakage, at the same time, reduce the contact area between the second sealing part and the liquid, thereby reducing the amount of liquid adhered to the second sealing part, so as to avoid waste of filling liquid.

[0019] 2. The first supporting rod is used to realize the simultaneous movement (i.e. simultaneously in the opened state and simultaneously in the closed state) of the first sealing part and the second sealing part through one driving part of the whole filling device, on the one hand, this can improve the filling efficiency of the whole filling device, reduce the volume of the whole filling device, enhance the integration of the whole filling device, so as to improve the space utilization, on the other hand, this can also improve the cooperativity of the filling action of the two sealing parts of the whole filling device and the cooperativity of the sealing action, so as to improve the anti-splashing effect and anti-dripping effect of the liquid of the whole filling device, thereby further improving the sealing effect of the whole filling device; the cross-sectional shape of the outlet end of the filling part is conical, which is used to guide and position the movement of the first sealing part, so as to facilitate the sealing between the conical outlet end of the filling part and the first sealing part (i.e. facilitate the close cooperation between the conical outlet end of the filling part and the first sealing part).

[0020] 3. Because one end of the first transmission rod is rotatably connected to the fixed part and the first support rod is slidably connected to the first transmission rod, the present invention can convert the linear motion generated by the driving part into the arcuate motion of the second sealing part (that is, the driving part drives the first support rod to move closer to or away from the filling container, and the second sealing part rotates around one end of the first transmission rod in the direction of moving away from or closer to the fixed part). Thus, during filling, the second sealing part is located diagonally below rather than directly below the outlet end of the fixed part, and the liquid to be filled is directly filled into the filling container from the outlet end of the fixed part without being blocked by the second sealing part. On the one hand, this can further avoid splashing during the liquid filling process, and on the other hand, it can avoid liquid waste.

[0021] 4. The purpose of designing the second through-hole of the present invention as a conical cross-section is to further store residual liquid, thereby reducing the amount of liquid overflowing when the second sealing part seals. By designing the third through-hole, on the one hand, the third through-hole provides movement space for the transmission mechanism and the first support rod, ensuring that the movement of the transmission mechanism, the first support rod, and the sealing seat do not interfere with each other; on the other hand, the third through-hole serves as a communication medium between the filling container and the external environment, allowing gas inside the filling container to be discharged during liquid filling (i.e., if the third through-hole is not provided, at the start of filling, the gas inside the filling container can only enter the solid through the second through-hole). (If air bubbles form in the fixed part, it will affect the filling of the liquid.) By designing a limiting groove, the filling container is placed in the limiting groove during filling and abuts against the sealing seat. The limiting groove restricts the movement of the filling container, so that the second and third through holes are always connected to the filling container. The second through hole ensures that the liquid to be filled only flows into the filling container and does not drip to the outside of the filling container, thereby avoiding liquid waste. The third through hole ensures that the filling container is always connected to the external environment and can expel the gas in the filling container during liquid filling. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of the filling device of the present invention; Figure 2 This is a structural schematic diagram of the filling device of the present invention from a second perspective; Figure 3 This is a cross-sectional view of the filling device of the present invention in a sealed state; Figure 4 This is a cross-sectional view of the filling device of the present invention in the filling state; Figure 5 This is a structural schematic diagram of the filling part, the first support rod, the transmission mechanism, and the sealing seat from a first-view perspective of the present invention. Figure 6Structure diagram of the filling part, the first supporting rod, the transmission mechanism and the sealing seat from the second perspective of the application; Figure 7 Structure diagram of the resisting part from the first perspective of the application; Figure 8 Structure diagram of the resisting part from the second perspective of the application; Figure 9 Structure diagram of the sealing seat from the first perspective of the application; Figure 10 Structure diagram of the sealing seat from the second perspective of the application; Figure 11 Flow chart of the filling method of the filling device of the application; Figure 12 Flow chart of S2 of the application; Figure 13 Flow chart of S3 of the application.

[0023] 1, fixed part; 101, first through hole; 102, first sealing ring; 2, driving part; 3, filling part; 301, first supporting rod; 4, first sealing part; 5, resisting part; 501, resisting block; 502, supporting block; 503, second supporting rod; 504, second sealing ring; 6, second sealing part; 7, transmission mechanism; 701, first transmission rod; 702, second transmission rod; 703, sliding groove; 8, sealing seat; 801, second through hole; 802, third through hole; 803, limiting groove. DETAILED DESCRIPTION

[0024] The specific embodiments of the application will be described below in conjunction with the accompanying drawings.

[0025] As Figures 1 to 10As shown, a filling device comprises a fixed part 1, a driving part 2, a filling part 3, a first sealing part 4, a blocking part 5 and a second sealing part 6. The fixed part 1 is a hollow structure. The driving part 2 is connected with the fixed part 1. The driving end of the driving part 2 is connected with the filling part 3. The driving part 2 is used to drive the filling part 3 to move towards or away from the filling container. The first sealing part 4 is located at the position of the outlet end of the filling part 3. The distance between the side of the blocking part 5 close to the outlet end of the filling part 3 and the outlet end of the filling part 3 is d. The blocking part 5 is used to drive the first sealing part 4 to move towards or away from the filling container, so as to open and close the outlet end of the filling part 3. The second sealing part 6 is connected with the filling part 3 and located at the position of the outlet end of the fixed part 1. The filling part 3 is used to drive the second sealing part 6 to move towards or away from the filling container, so as to open and close the outlet end of the fixed part 1. Thus, through the cooperation of the first sealing part 4 and the second sealing part 6, the opening and closing of the whole filling device is realized. Compared with the existing filling method, the structure is simple and convenient to operate. During the filling process, the filling container abuts against the outlet end of the fixed part 1, which can effectively prevent the liquid from splashing. After the filling is completed, the double sealing of the first sealing part 4 and the second sealing part 6 can prevent the outlet end of the fixed part 1 from remaining liquid, so as to avoid wasting the filling liquid. In addition, the containing space between the first sealing part 4 and the second sealing part 6 can temporarily store residual liquid, so as to further avoid the liquid dripping from the outlet end of the fixed part 1, thereby further avoiding the waste of the filling liquid. At the same time, the temporarily stored residual liquid can be shaken out under the movement of the second sealing part 6 during the next filling, which can prevent the residual liquid from causing liquid accumulation. At the same time, since the distance between the side of the blocking part 5 close to the outlet end of the filling part 3 and the outlet end of the filling part 3 is d, the opening and closing of the first sealing part 4 and the second sealing part 6 are not performed at the same time (i.e. during filling, the second sealing part 6 is opened first and the first sealing part 4 is opened later; during sealing, the first sealing part 4 is closed first and the second sealing part 6 is closed later). The purpose of this is to utilize the time difference between the opening and closing of the first sealing part 4 and the second sealing part 6 to reduce the residual liquid.

[0026] It should be noted that: I. As Figure 3 shown, when the whole filling device is in a sealed state, the distance between the side of the blocking part 5 close to the outlet end of the filling part 3 and the outlet end of the filling part 3 is d. This distance d makes the opening and closing of the first sealing part 4 and the second sealing part 6 not performed at the same time (i.e. during filling, the second sealing part 6 is opened first and the first sealing part 4 is opened later; during sealing, the first sealing part 4 is closed first and the second sealing part 6 is closed later). II. As Figure 3As shown, the entire filling device in a sealed state refers to: the driving part 2 is in a retracted state, the first sealing part 4 is in abutment with the outlet end of the filling part 3, and the second sealing part 6 is in abutment with the outlet end (i.e. the second through hole 801) of the fixed part 1. III. As Figure 4 As shown, the entire filling device in a filling state refers to: the driving part 2 is in an elongated state, the first sealing part 4 is in abutment with the blocking part 5 (i.e. the blocking block 501) and is lifted away from the outlet end of the filling part, and the second sealing part 6 is located below the outlet end (i.e. the second through hole 801) of the fixed part 1.

[0027] For example: the driving part 2 is a gas cylinder; the first sealing part 4 is a sphere, and the second sealing part 6 is a sphere; both the first sealing part 4 and the second sealing part 6 are made of silicone or rubber.

[0028] It should be noted that when sealing, the first sealing part 4 is always in contact with the inner wall of the outlet end of the filling part 3 under the action of gravity, so that the sealing effect of the first sealing part 4 can be achieved.

[0029] In this embodiment, the sidewall of the fixed part 1 is provided with a first through hole 101, and the filling part 3 penetrates through the first through hole 101 and is in sliding connection with the fixed part 1; the filling part 3 is provided with a first supporting rod 301, the first supporting rod 301 penetrates through the first through hole 101 and is connected with the second sealing part 6, and the cross-sectional shape of the outlet end of the filling part 3 is conical. Thus, through the first supporting rod 301, the entire filling device can realize the simultaneous movement (i.e. simultaneously in the open state, simultaneously in the closed state) of the first sealing part 4 and the second sealing part 6 by only one driving part 2, so that on the one hand, the filling efficiency of the entire filling device can be improved, the volume of the entire filling device can be reduced, the integration of the entire filling device can be enhanced, the space utilization can be improved, and on the other hand, the coordination of the filling action of the two sealing parts of the entire filling device and the coordination of the sealing action can be improved, so that the anti-splashing effect and the anti-dripping effect of the liquid of the entire filling device can be improved, and the sealing effect of the entire filling device can be further improved; the cross-sectional shape of the outlet end of the filling part 3 is conical, which is to guide and position the movement of the first sealing part 4, so that the conical outlet end of the filling part 3 and the first sealing part 4 can be sealed (i.e. the conical outlet end of the filling part 3 and the first sealing part 4 can be tightly fitted).

[0030] In the embodiment, the first supporting rod 301 is connected with the second sealing part 6 through the transmission mechanism 7; the transmission mechanism 7 comprises a first transmission rod 701 and a second transmission rod 702, one end of the first transmission rod 701 is rotatably connected with the fixed part 1, the other end of the first transmission rod 701 is connected with one end of the second transmission rod 702, the other end of the second transmission rod 702 is connected with the second sealing part 6, the first transmission rod 701 is provided with a sliding groove 703, the first supporting rod 301 is inserted into the sliding groove 703 and is slidably connected with the first transmission rod 701. Thus, since one end of the first transmission rod 701 is rotatably connected with the fixed part 1 and the first supporting rod 301 is slidably connected with the first transmission rod 701, the linear motion of the driving part 2 can be converted into the arc motion of the second sealing part 6 (i.e. the driving part 2 drives the first supporting rod 301 to move towards or away from the filling container, and the second sealing part 6 rotates around one end of the first transmission rod 701 and the rotation direction is away from or towards the fixed part 1), so that during filling, the second sealing part 6 is located below the outlet end of the fixed part 1, rather than directly below the outlet end, the liquid to be filled is directly filled into the filling container from the outlet end of the fixed part 1 and is not blocked by the second sealing part 6, on the one hand, the splashing of the liquid during filling can be further avoided, and on the other hand, the waste of the liquid can be avoided.

[0031] In the embodiment, the resisting part 5 comprises a resisting block 501 and a supporting block 502, the distance between the side of the resisting block 501 close to the outlet end of the filling part 3 and the outlet end of the filling part 3 is d, the cross-sectional shape of the upper end of the resisting block 501 is conical, the resisting block 501 is connected with the supporting block 502 through a second supporting rod 503, and the supporting block 502 is connected with the fixed part 1. Thus, the cross-sectional shape of the upper end of the resisting block 501 is conical, which can guide the flow of the filling liquid to further improve the filling efficiency of the liquid.

[0032] Specifically, the contact surface between the resisting block 501 and the first sealing part 4 is a circular arc surface, which can reduce the impact on the first sealing part 4 during jacking, has a small contact surface, and promotes the flow of the filling liquid.

[0033] It should be noted that during sealing, the contact area between the first sealing part 4 and the outlet end of the filling part 3 gradually increases, the flow of the liquid gradually decreases, and the first sealing part 4 is completely separated from the resisting block 501, so that the first sealing part 4 is sealed with the outlet end of the filling part, and then the second sealing part 6 is sealed with the outlet end of the fixed part 1. During the entire sealing process, the liquid between the filling part 3 and the fixed part 1 continuously flows out, and since the first sealing ring 102 (i.e. O-shaped sealing ring) is arranged between the filling part 3 and the fixed part 1, the flow of the liquid between the filling part 3 and the fixed part 1 can be alleviated (i.e. the dripping of the liquid is alleviated) due to the internal absorption of the gas during the sealing process.

[0034] In the embodiment, the sealing seat 8 is arranged on the side of the fixing part 1 away from the driving part 2, the sealing seat 8 is provided with a second through hole 801 and a third through hole 802, the second through hole 801 is arranged at the position of the sealing seat 8 relative to the outlet end of the filling part 3, the cross-sectional shape of the second through hole 801 is conical, the third through hole 802 is located on one side of the second through hole 801, the first transmission rod 701 penetrates through the third through hole 802, one end of the first transmission rod 701 is rotationally connected with the sealing seat 8, the second sealing part 6 abuts against the sealing seat 8, the sealing seat 8 is provided with a limiting groove 803 on the side away from the fixing part 1, and the second through hole 801 and the third through hole 802 are both in communication with the limiting groove 803. Therefore, the cross-sectional shape of the second through hole 801 is designed to be conical, so as to further store the residual liquid, thereby reducing the overflow amount of the liquid when the second sealing part 6 is sealed; by designing the third through hole 802, on one hand, the third through hole 802 provides a movement space for the movement of the transmission mechanism 7 and the first supporting rod 301, so as to ensure that the movement of the transmission mechanism 7 and the first supporting rod 301 does not interfere with the sealing seat 8, on the other hand, the third through hole 802 serves as a communication medium between the filling container and the external environment, when the liquid is filled, the gas in the filling container can be discharged (that is, if the third through hole 802 is not arranged, when the filling is started, the gas in the filling container can only enter into the fixing part 1 through the second through hole 801, thus, the bubbles are formed in the fixing part 1, which affects the filling of the liquid); by designing the limiting groove 803, when the filling is performed, the filling container is placed in the limiting groove 803 and abuts against the sealing seat 8, the movement of the filling container is limited by the limiting groove 803, so that the second through hole 801 and the third through hole 802 are always in communication with the filling container, the liquid to be filled can only flow into the filling container through the second through hole 801, and will not drip to the outside of the filling container, thereby avoiding the waste of the liquid, and the filling container is always in communication with the external environment through the third through hole 802, when the liquid is filled, the gas in the filling container can be discharged.

[0035] It should be noted that the second sealing ring 504 (i.e., the O-shaped sealing ring) is arranged between the sealing seat 8 and the supporting block 502.

[0036] The liquid filling process of the filling device of the present invention is as follows: First, the storage tank of the liquid to be filled is connected to the inlet end of the filling part 3, and the filling container is installed in the limiting groove 803 and abuts against the sealing seat 8; then, the driving component is activated, and the filling part 3 is driven to move closer to the filling container by the driving part 2, and with the cooperation of the first support rod 301 and the transmission mechanism 7, the second sealing part 6 is disengaged from the sealing seat 8 and located below the second through hole 801; finally, as the filling part 3 continues to move closer to the filling container, the stop block 501 is inserted into the outlet end of the filling part 3 and the first sealing part 4 is lifted up, so that the first sealing part 4 is disengaged from the outlet end of the filling part 3, and the liquid to be filled flows out from the storage tank, and flows through the filling part 3 and the fixing part 1 in sequence, and then flows into the filling container through the second through hole 801, thus realizing the liquid filling operation.

[0037] The sealing process of the filling device of the present invention is as follows: First, the drive unit 2 is activated, and the drive unit 2 drives the filling unit 3 to move away from the filling container. As the filling unit 3 continues to move away from the filling container, the first sealing part 4 gradually comes into contact with the outlet end of the filling unit 3, and the blocking block 501 gradually disengages from the outlet end of the filling unit 3 until the blocking part 501 completely disengages from the outlet end of the filling unit 3, at which point the first sealing part 4 seals the outlet end of the filling unit 3. Finally, as the filling unit 3 continues to move away from the filling container, the second sealing part 6 is located at the position of the second through hole 801 and comes into contact with the sealing seat 8, thereby achieving a double seal through the first sealing part 4 and the second sealing part 6.

[0038] like Figures 11 to 13 As shown, a filling method of a filling device includes the following steps: S1. Place the filling container against the side of the fixing part 1 away from the driving part 2, and connect the outlet end of the liquid storage tank to be filled to the inlet end of the filling part 3. S2. When filling liquid, the drive unit 2 drives the filling unit 3 to move closer to the filling container, and opens the outlet end of the fixing part 1 and the outlet end of the filling unit 3 in sequence. The liquid to be filled flows out from the storage tank, passes through the filling unit 3 and the fixing part 1 in sequence, and is then filled into the filling container through the outlet end of the fixing part 1. S3. After the liquid filling is completed, the drive unit 2 drives the filling unit 3 to move away from the filling container, and sequentially closes the outlet end of the fixing unit 1 and the outlet end of the filling unit 3.

[0039] In this embodiment, S2 includes the following steps: S2-1, the drive unit 2 drives the filling unit 3 to move towards the side closer to the filling container, so that the outlet end of the filling unit 3 moves towards the side closer to the stop block 501. With the cooperation of the transmission mechanism 7, the second sealing unit 6 moves away from the outlet end of the fixed unit 1. S2-2, Open the outlet end of the fixing part 1; S2-3. After the outlet end of the fixing part 1 is opened, the first sealing part 4 abuts against the stop block 501 and the first sealing part 4 disengages from the outlet end of the filling part 3, thereby opening the outlet end of the filling part 3. S2-4. The liquid to be filled flows out of the storage tank, passes through the filling section 3 and the fixing section 1 in sequence, and is then filled into the filling container through the outlet end of the fixing section 1.

[0040] In this embodiment, S3 includes the following steps: S3-1, the drive unit 2 drives the filling unit 3 to move away from the filling container, so that the outlet end of the filling unit 3 moves away from the stop block 501. With the cooperation of the transmission mechanism 7, the second sealing unit 6 moves towards the side closer to the outlet end of the fixing unit 1. S3-2, To close the outlet end of the fixing part 1; S3-3 After the outlet end of the fixing part 1 is closed, the first sealing part 4 disengages from the blocking block 501 and abuts against the outlet end of the filling part 3 to close the outlet end of the filling part 3.

[0041] In summary, the present application realizes the opening and closing of the whole filling device through the cooperation of the first sealing part 4 and the second sealing part 6, compared with the existing filling mode, the structure is simple, and the operation is convenient. In the filling process, the filling container abuts against the outlet end of the fixing part 1, which can effectively block the splashing of the liquid. After filling, the double sealing of the first sealing part 4 and the second sealing part 6 can prevent the outlet end of the fixing part 1 from remaining liquid, so as to avoid wasting the filling liquid. In addition, the containing space between the first sealing part 4 and the second sealing part 6 can temporarily store the residual liquid, so as to further avoid the dripping of the liquid at the outlet end of the fixing part 1, thereby further avoiding the waste of the filling liquid. At the same time, when filling the liquid next time, the temporarily stored residual liquid can be shaken out under the movement of the second sealing part 6, which can prevent the residual liquid from causing liquid accumulation. At the same time, the distance between the side of the resisting part 5 close to the outlet end of the filling part 3 and the outlet end of the filling part 3 is d, so that the opening and closing of the first sealing part 4 and the second sealing part 6 are not performed at the same time (i.e. during filling, the second sealing part 6 is opened first, and the first sealing part 4 is opened later; during sealing, the first sealing part 4 is closed first, and the second sealing part 6 is closed later). The purpose of this is to utilize the time difference between the opening and closing of the first sealing part 4 and the second sealing part 6 to reduce the residual liquid.

[0042] The above description is an explanation of the present application, not a limitation of the application. The scope of the present application is defined in the claims, and any modification within the protection scope of the present application can be made.

Claims

1. A filling device, characterized in that The utility model relates to a kind of filling device, including: Fixed part (1), the fixed part (1) is hollow structure; Driving part (2) and filling part (3), the driving part (2) is connected with the fixed part (1), the driving end of the driving part (2) is connected with the filling part (3), and the driving part (2) is used to drive the filling part (3) to the side close to or away from filling container moves; First sealing part (4) and resistance part (5), the first sealing part (4) is located at the position of the filling part (3) outlet end, the distance of the resistance part (5) close to the side of the filling part (3) outlet end from the filling part (3) outlet end is d, and the resistance part (5) is used to drive the first sealing part (4) to the side close to or away from filling container moves, to realize the opening and closing of the filling part (3) outlet end; Second sealing part (6), the second sealing part (6) is connected with the filling part (3), and is located at the position of the fixed part (1) outlet end, and the filling part (3) is used to drive the second sealing part (6) to the side close to or away from filling container moves, to realize the opening and closing of the fixed part (1) outlet end.

2. The filling apparatus of claim 1, wherein: The side wall of the fixed part (1) is provided with a first through hole (101), and the filling part (3) penetrates the first through hole (101) and is connected with the fixed part (1) in sliding mode.

3. The filling apparatus of claim 2, wherein: The filling part (3) is provided with a first support rod (301), the first support rod (301) penetrates the first through hole (101) and is connected with the second sealing part (6), and the cross-sectional shape of the outlet end of the filling part (3) is conical.

4. The filling apparatus of claim 3, wherein: The first support rod (301) is connected with the second sealing part (6) through a transmission mechanism (7). The transmission mechanism (7) comprises: A first transmission rod (701) and a second transmission rod (702), one end of the first transmission rod (701) is rotatably connected with the fixed part (1), the other end of the first transmission rod (701) is connected with one end of the second transmission rod (702), the other end of the second transmission rod (702) is connected with the second sealing part (6), the first transmission rod (701) is provided with a sliding groove (703), the first support rod (301) is inserted into the sliding groove (703) and is connected with the first transmission rod (701) in sliding mode.

5. The filling apparatus of claim 1, wherein: The resistance part (5) comprises: Resistance block (501) and support block (502), the distance of the resistance block (501) close to the side of the filling part (3) outlet end from the filling part (3) outlet end is d, the cross-sectional shape of the upper end of the resistance block (501) is conical, the resistance block (501) is connected with the support block (502) through a second support rod (503), and the support block (502) is connected with the fixed part (1).

6. The filling apparatus of claim 4, wherein: The fixed part (1) is provided with a sealing seat (8) on the side away from the driving part (2), the sealing seat (8) is provided with a second through hole (801) and a third through hole (802), the second through hole (801) is arranged at the position of the sealing seat (8) relative to the outlet end of the filling part (3), the cross-sectional shape of the second through hole (801) is conical, the third through hole (802) is located on one side of the second through hole (801), the first transmission rod (701) penetrates through the third through hole (802), one end of the first transmission rod (701) is rotationally connected with the sealing seat (8), and the second sealing part (6) abuts against the sealing seat (8).

7. The filling apparatus of claim 6, wherein: The sealing seat (8) is provided with a limiting groove (803) on the side away from the fixed part (1), and the second through hole (801) and the third through hole (802) are in communication with the limiting groove (803).

8. A method of filling a filling device as claimed in any of the claims 1-7, characterized in that: The method comprises the following steps: S1, abutting the filling container on the side away from the driving part (2) of the fixed part (1), and connecting the outlet end of the liquid storage tank to be filled with the inlet end of the filling part (3); S2, when filling the liquid, the driving part (2) drives the filling part (3) to move towards the side close to the filling container, and the outlet end of the fixed part (1) and the outlet end of the filling part (3) are opened in sequence, the liquid to be filled flows out from the storage tank, passes through the filling part (3) and the fixed part (1) in sequence, and is filled into the filling container through the outlet end of the fixed part (1); S3, when the liquid filling is completed, the driving part (2) drives the filling part (3) to move away from the side of the filling container, and the outlet end of the fixed part (1) and the outlet end of the filling part (3) are closed in sequence.

9. The filling method of the filling apparatus according to claim 8, characterized by: The S2 comprises the following steps: S2-1, the driving part (2) drives the filling part (3) to move towards the side close to the filling container, so that the outlet end of the filling part (3) moves towards the side close to the blocking block (501), and under the cooperation of the transmission mechanism (7), the second sealing part (6) moves away from the outlet end of the fixed part (1); S2-2, the outlet end of the fixed part (1) is opened; S2-3, after the outlet end of the fixed part (1) is opened, the first sealing part (4) abuts against the blocking block (501) and the first sealing part (4) is separated from the outlet end of the filling part (3), so that the outlet end of the filling part (3) is opened; S2-4, the liquid to be filled flows out from the storage tank, passes through the filling part (3) and the fixed part (1) in sequence, and is filled into the filling container through the outlet end of the fixed part (1).

10. The filling method of the filling apparatus according to claim 8, characterized by: The S3 comprises the following steps: S3-1, the driving part (2) drives the filling part (3) to move away from the filling container, so that the outlet end of the filling part (3) moves away from the blocking block (501), and under the cooperation of the transmission mechanism (7), the second sealing part (6) moves towards the outlet end of the fixed part (1); S3-2, closing the outlet end of the fixed part (1); S3-3, after the outlet end of the fixed part (1) is closed, the first sealing part (4) is separated from the blocking block (501), and after the first sealing part (4) abuts against the outlet end of the filling part (3), the outlet end of the filling part (3) is closed.

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