Quantitative filling valve

Abstract

The utility model provides a quantitative filling valve. The quantitative filling valve solves the problem that the filling precision of electronic and pneumatic quantitative filling valves cannot be guaranteed. The second liquid inlet hole is formed in the side edge of the valve element, and the second liquid inlet hole communicates with the liquid outlet hole; the pressing plate is arranged at the bottom of the valve element; the first elastic reset piece is arranged between the pressing plate and the valve body; the exhaust pipe is arranged at the top of the valve element, an exhaust hole is formed in the bottom of the exhaust pipe, and an exhaust port of the exhaust pipe is located above the liquid level; and the sealing gasket is arranged on the exhaust pipe. When filling is needed, the valve body descends, the pressing plate makes contact with the tank body or the baffle, the spring is compressed, then the pressing plate drives the valve element and the exhaust pipe to move upwards, the sealing gasket on the exhaust pipe blocks the first liquid inlet hole, and liquid in the liquid storage cavity flows out of the liquid outlet hole through the second liquid inlet hole. And after filling is completed, the valve element is reset, the sealing gasket descends, the first liquid inlet hole is opened, the exhaust hole is used for exhausting air in the liquid storage cavity, and then the filling precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filling equipment, in particular to a quantitative filling valve. Background Art

[0002] In the field of beverage filling machinery and equipment, quantitative filling valves are used for quantitative filling of liquids. At present, electronic quantitative filling valves or pneumatic quantitative filling valves are generally used in the field of liquid filling. Electronic quantitative filling valves generally control the volume of the beverage bottle by time, but in the actual working process, the speed of equipment start and stop and the speed of liquid flow rate will affect the liquid level, resulting in large fluctuations in the liquid level, making it impossible to accurately guarantee the height of the liquid level in the beverage bottle after filling; the other pneumatic quantitative filling valve has the disadvantage of relying on compressed air. Once the air source is unstable, the filling accuracy cannot be guaranteed. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the utility model provides a quantitative filling valve, which solves the problem that the filling accuracy of electronic and pneumatic quantitative filling valves cannot be guaranteed.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A quantitative filling valve, comprising a valve body and a valve core located below a liquid surface, wherein the valve body is provided with a liquid storage cavity, a No. 1 liquid inlet hole is provided at the top of the liquid storage cavity, a liquid outlet hole is provided at the center of the valve core, and further comprising:

[0006] A second liquid inlet hole is arranged on the side of the valve core, and the second liquid inlet hole is connected with the liquid outlet hole;

[0007] A pressure plate, arranged at the bottom of the valve core;

[0008] A first elastic return member is arranged between the pressure plate and the valve body;

[0009] An exhaust pipe is arranged on the top of the valve core, an exhaust hole is arranged at the bottom of the exhaust pipe, and the exhaust port of the exhaust pipe is located above the liquid surface;

[0010] The sealing gasket is arranged on the exhaust pipe, and the sealing gasket has a first position for blocking the first liquid inlet hole and a second position for opening the first liquid inlet hole.

[0011] The exhaust pipe is also provided with an upper baffle, a lower baffle and a sealing seat for fixing a sealing gasket, the top of the sealing seat is in contact with the upper baffle, and a second elastic reset member is provided between the bottom of the sealing seat and the lower baffle.

[0012] A regulating cavity is also provided on one side of the liquid storage cavity. A piston is provided in the regulating cavity. A threaded rod for cooperating with the valve body is provided on one side of the piston.

[0013] The top surface of the sealing gasket is in a conical structure, and the bottom surface of the No. 1 liquid inlet hole is provided with an inclined surface for matching with the top surface of the sealing gasket.

[0014] A sealing ring is installed around the valve core to cooperate with the bottom of the liquid storage cavity.

[0015] The valve body is provided with a valve sleeve for cooperating with the valve core, and the material of the valve sleeve is food-grade polytetrafluoroethylene.

[0016] The four No. 2 liquid inlet holes are evenly distributed in the circumference of the valve core.

[0017] A threaded portion is provided at the bottom of the exhaust pipe, and the exhaust pipe is threadedly connected to the valve core.

[0018] A shaft sleeve for matching with the exhaust pipe and a retaining spring located above the shaft sleeve are installed in the sealing seat.

[0019] The beneficial effects of the utility model are:

[0020] The No. 1 elastic reset member is a spring. When filling is required, the valve body drops. When the pressure plate contacts the tank body or the baffle, the spring is compressed, and then the pressure plate drives the valve core and the exhaust pipe to move upward. The sealing gasket on the exhaust pipe blocks the No. 1 liquid inlet hole, and the liquid in the liquid storage chamber flows out from the liquid outlet hole through the No. 2 liquid inlet hole. When the filling is completed, the valve core is reset, the sealing gasket drops, the No. 1 liquid inlet hole is opened, and the exhaust hole is used to discharge the air in the liquid storage chamber, thereby ensuring the filling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the utility model.

[0022] Figure 2 This utility model Figure 1 A magnified schematic diagram of center A.

[0023] Valve body 1, valve core 2, liquid storage chamber 3, liquid inlet hole No. 1 5, liquid outlet hole 6, liquid inlet hole No. 2 7, pressure plate 8, elastic reset part No. 1 9, exhaust pipe 10, exhaust hole 11, sealing gasket 12, upper baffle plate 13, lower baffle plate 14, sealing seat 15, elastic reset part No. 2 16, adjusting chamber 17, piston 18, threaded rod 19, sealing ring 20, valve sleeve 21, threaded part 22, shaft sleeve 23, retaining spring 24. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] In the embodiment, Figure 1 , Figure 2As shown, a quantitative filling valve comprises a valve body 1 and a valve core 2 located below the liquid surface, the valve body 1 is provided with a liquid storage cavity 3, the top of the liquid storage cavity 3 is provided with a first liquid inlet hole 5, the center of the valve core 2 is provided with a liquid outlet hole 6, and further comprises:

[0026] A second liquid inlet hole 7 is provided on the side of the valve core 2, and the second liquid inlet hole 7 is connected to the liquid outlet hole 6;

[0027] A pressure plate 8 is arranged at the bottom of the valve core 2;

[0028] A first elastic return member 9 is arranged between the pressure plate 8 and the valve body 1;

[0029] An exhaust pipe 10 is arranged on the top of the valve core 2, and an exhaust hole 11 is arranged at the bottom of the exhaust pipe 10. The exhaust port of the exhaust pipe 10 is located above the liquid surface;

[0030] The sealing gasket 12 is disposed on the exhaust pipe 10 , and the sealing gasket 12 has a first position for blocking the first liquid inlet hole 5 and a second position for opening the first liquid inlet hole 5 .

[0031] The No. 1 elastic reset member 9 is a spring. When filling is required, the valve body drops. When the pressure plate 8 contacts the tank body or the baffle, the spring is compressed, and then the pressure plate 8 drives the valve core and the exhaust pipe to move upward. The sealing gasket on the exhaust pipe blocks the No. 1 liquid inlet hole 5, and the liquid in the liquid storage chamber 3 flows out from the liquid outlet hole 6 through the No. 2 liquid inlet hole 7; when the filling is completed, the valve core is reset, the sealing gasket 12 drops, the No. 1 liquid inlet hole 5 is opened, and the exhaust hole 11 is used to discharge the air in the liquid storage chamber 3, thereby ensuring the filling accuracy.

[0032] In the embodiment, Figure 1 , Figure 2 As shown, the exhaust pipe 10 is further provided with an upper baffle 13, a lower baffle 14 and a sealing seat 15 for fixing a sealing gasket, the top of the sealing seat 15 is in contact with the upper baffle 13, and a second elastic reset member 16 is provided between the bottom of the sealing seat 15 and the lower baffle 14. The second elastic reset member 16 is a spring, and the compression force of the spring gradually increases through the movement of the sealing seat 15 relative to the exhaust pipe 10, thereby ensuring that the sealing gasket 12 effectively seals the first liquid inlet hole 5.

[0033] In the embodiment, Figure 1 As shown, a regulating chamber 17 is further provided on one side of the liquid storage chamber 3, a piston 18 is provided in the regulating chamber 17, and a threaded rod 19 is provided on one side of the piston 18 for cooperating with the valve body 1. The piston 18 is moved in the regulating chamber by rotating the threaded rod 19, thereby adjusting the filling capacity of the valve body 1.

[0034] In the embodiment, Figure 1 , Figure 2As shown, the top surface of the sealing gasket 12 is a conical structure, and the bottom surface of the No. 1 liquid inlet hole 5 is provided with an inclined surface for matching with the top surface of the sealing gasket 12. Good sealing between the sealing gasket 12 and the bottom of the No. 1 liquid inlet hole 5 is ensured.

[0035] In the embodiment, Figure 1 As shown, a sealing ring 20 for cooperating with the bottom of the liquid storage chamber 3 is installed around the valve core 2. When the valve core 2 is in a reset state, the sealing ring 20 ensures the sealing between the valve core 2 and the bottom of the liquid storage chamber 3 to prevent leakage of liquid.

[0036] In the embodiment, Figure 1 As shown, a valve sleeve 21 for cooperating with the valve core 2 is provided in the valve body 1, and the material of the valve sleeve 21 is food-grade polytetrafluoroethylene. The valve sleeve 21 will not pollute the liquid, and has good lubricity, and will not get the valve core 2 stuck.

[0037] In the embodiment, Figure 1 As shown, the four second liquid inlet holes 7 are evenly distributed in the circumference of the valve core 2. Liquid enters the liquid outlet hole 6 from the circumference, and can be quickly filled.

[0038] In the embodiment, Figure 1 As shown, a threaded portion 22 is provided at the bottom of the exhaust pipe 10, and the exhaust pipe 10 is threadedly connected to the valve core 2. The exhaust pipe 10 and the valve core 2 are easy to disassemble and assemble, and are convenient for maintenance.

[0039] In the embodiment, Figure 1 , Figure 2 As shown, the sealing seat 15 is provided with a sleeve 23 for cooperating with the exhaust pipe 10 and a retaining spring 24 located above the sleeve 23. The retaining spring 24 prevents the sleeve 23 and the sealing seat 15 from moving relative to each other, so that the sleeve 23 and the sealing seat 15 are integrated, and the sealing seat 15 is convenient for moving up and down relative to the exhaust pipe 10.

[0040] Obviously, the above embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to provide all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. A quantitative filling valve, comprising a valve body (1) and a valve core (2) located below a liquid surface, the valve body (1) being provided with a liquid storage cavity (3), a first liquid inlet hole (5) being provided at the top of the liquid storage cavity (3), and a liquid outlet hole (6) being provided at the center of the valve core (2), characterized in that: Also includes: A second liquid inlet hole (7) is arranged on the side of the valve core (2), and the second liquid inlet hole (7) is connected to the liquid outlet hole (6); A pressure plate (8) is arranged at the bottom of the valve core (2); A first elastic return member (9), arranged between the pressure plate (8) and the valve body (1); An exhaust pipe (10) is arranged on the top of the valve core (2), an exhaust hole (11) is arranged at the bottom of the exhaust pipe (10), and the exhaust port of the exhaust pipe (10) is located above the liquid surface; A sealing gasket (12) is arranged on the exhaust pipe (10), wherein the sealing gasket (12) has a first position for blocking the first liquid inlet hole (5) and a second position for opening the first liquid inlet hole (5).

2. A quantitative filling valve according to claim 1, characterized in that: The exhaust pipe (10) is further provided with an upper baffle (13), a lower baffle (14), and a sealing seat (15) for fixing the sealing gasket (12); the top of the sealing seat (15) is in contact with the upper baffle (13), and a second elastic reset member (16) is provided between the bottom of the sealing seat (15) and the lower baffle (14).

3. A quantitative filling valve according to claim 1, characterized in that: A regulating chamber (17) is further provided on one side of the liquid storage chamber (3), a piston (18) is provided in the regulating chamber (17), and a threaded rod (19) for cooperating with the valve body (1) is provided on one side of the piston (18).

4. A quantitative filling valve according to claim 1, characterized in that: The top surface of the sealing gasket (12) is in a conical structure, and the bottom surface of the No. 1 liquid inlet hole (5) is provided with an inclined surface for matching with the top surface of the sealing gasket (12).

5. A quantitative filling valve according to claim 1, characterized in that: A sealing ring (20) is installed around the valve core (2) to cooperate with the bottom of the liquid storage chamber (3).

6. A quantitative filling valve according to claim 1, characterized in that: A valve sleeve (21) for cooperating with the valve core (2) is provided in the valve body (1); the material of the valve sleeve (21) is food-grade polytetrafluoroethylene.

7. A quantitative filling valve according to claim 1, characterized in that: The four No. 2 liquid inlet holes (7) are evenly distributed around the circumference of the valve core (2).

8. A quantitative filling valve according to claim 1, characterized in that: A threaded portion (22) is provided at the bottom of the exhaust pipe (10), and the exhaust pipe (10) is threadably connected to the valve core (2).

9. A quantitative filling valve as claimed in claim 2, characterized in that: A shaft sleeve (23) for cooperating with the exhaust pipe (10) and a retaining spring (24) located above the shaft sleeve (23) are installed in the sealing seat (15).

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