Liquid dispensing device capable of eliminating water hammer effect

Abstract

The present invention discloses a liquid dispensing device capable of eliminating water hammer effect, wherein a liquid supply pipeline is connected with a reversing valve body, a reversing valve rod is inserted in the reversing valve body, two ends of the reversing valve rod are respectively hinged with a lever, one end of the lever is hinged on the reversing valve body; the reversing valve body is respectively connected with two ends of a hydraulic cylinder through a pipeline, a piston is arranged in the hydraulic cylinder, a toggle rod is inserted in the piston, and adjustable bumpers are arranged on the toggle rods at both ends of the piston; two stop valves are respectively connected with two ends of the hydraulic cylinder through a pipeline, a valve core is inserted in the stop valve, a connecting rod is connected between the two valve cores, a fixing rod is fixed on the connecting rod, a spring fixing seat is arranged on the left side of the connecting rod, and a compression spring is arranged between the spring fixing seat and the connecting rod; the stop valve is connected with a liquid dispensing cylinder through a pipeline, and the liquid dispensing cylinder is connected with a liquid injection pipe. The beneficial effect of the present invention is that the equipment damage caused by the water hammer effect generated by the closing of the valve body is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of liquid dispensing devices, and more particularly to a liquid dispensing device capable of eliminating water hammer effect. Background Art

[0002] The water hammer effect refers to the situation where the inner wall of a water pipe is smooth and water flows freely. When an open valve is suddenly closed, the water flow will exert pressure on the valve and the pipe wall, mainly the valve. Since the pipe wall is smooth, the subsequent water flow will quickly reach its maximum under the action of inertia and produce a destructive effect. This is the "water hammer effect" in hydraulics, also known as positive water hammer. This factor must be considered in the construction of hydraulic pipelines. On the contrary, a closed valve will also produce water hammer after it is suddenly opened, which is called negative water hammer. It also has a certain destructive power, but not as great as the former.

[0003] In some factories, liquid packaging is an indispensable link. Liquid packaging requires the use of a liquid packaging device, but the existing liquid packaging device cannot eliminate the water hammer effect, resulting in a shortened service life of the equipment; therefore, in view of the above aspects, inventing a liquid packaging device that can eliminate the water hammer effect is a problem that technical personnel in this field need to solve. Summary of the invention

[0004] In order to overcome the above technical disadvantages, the present invention provides a liquid dispensing device capable of eliminating the water hammer effect.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A liquid dispensing device capable of eliminating water hammer effect comprises a liquid supply pipeline, wherein the liquid supply pipeline is connected with a reversing valve body, a reversing valve rod is inserted in the reversing valve body, both ends of the reversing valve rod are respectively hinged with a shifting rod, one end of the shifting rod is hinged on the reversing valve body; the reversing valve body is respectively connected with both ends of a hydraulic cylinder through a pipeline, a piston is arranged in the hydraulic cylinder, a shifting rod is inserted in the piston, adjustable bumpers are arranged on the shifting rods at both ends of the piston, wherein the right end of the shifting rod is inserted in a guide sleeve; both ends of the hydraulic cylinder are respectively connected with two stop valves through a pipeline, a valve core is inserted in the stop valve, a connecting rod is connected between the two valve cores, a fixing rod is fixed on the connecting rod A spring fixing seat is arranged on the left side of the connecting rod, and a compression spring is arranged between the spring fixing seat and the connecting rod; the stop valve is connected to the liquid separation cylinder through a pipeline, the liquid separation cylinder is connected to a liquid injection pipe, a liquid separation cylinder valve core is inserted in the liquid separation cylinder, a plunger is also arranged in the liquid separation cylinder, and the two plungers are connected by a connecting rod 2; a fixing plate is fixed on the plunger, a rack is arranged on the fixing plate, a gear is meshed with the rack, the gear is connected to the transmission shaft through a ratchet, a pulley is arranged on the transmission shaft, the pulley is connected to the pulley arranged on the gearbox through a belt, the transmission pulley arranged on the gearbox is connected to the transmission pulley through a conveyor belt, and a transmission belt is arranged between the transmission pulleys.

[0007] Furthermore, the adjustable collision block is wrapped with soft rubber.

[0008] Furthermore, a spherical structure is provided at the front end of the fixing rod.

[0009] The beneficial effects of the present invention are as follows: the device can realize continuous and rapid reversal, complete the switching pressure relief of the pipeline while reversing, and avoid equipment damage caused by water hammer effect caused by valve body closure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a liquid dispensing device capable of eliminating water hammer effect according to the present invention;

[0011] Figure 2 yes Figure 1 A partial enlarged view of point A;

[0012] Figure 3 yes Figure 2 A partial enlarged view of point B;

[0013] Figure 4 yes Figure 2 A partial enlarged view of point C;

[0014] Figure 5 yes Figure 4 A local enlarged view of point D;

[0015] Figure 6 yes Figure 1 A local enlarged view of point E;

[0016] Figure 7 yes Figure 1 A partial enlarged view of point F;

[0017] Figure 8 yes Figure 7 A local enlarged view of point H;

[0018] In the figure, 1. liquid supply pipeline; 2. reversing valve body; 3. reversing valve stem; 4. lever; 5. hydraulic cylinder; 6. piston; 7. lever; 8. adjustable bumper; 9. guide sleeve; 10. stop valve; 11. valve core; 12. connecting rod; 13. fixing rod; 14. compression spring; 15. spring fixing seat; 16. liquid distributing cylinder; 17. liquid distributing cylinder valve core; 18. plunger; 19. fixing plate; 20. rack; 21. gear; 22. transmission shaft; 23. ratchet; 24. pulley; 25. belt; 26. gearbox; 27. conveyor belt; 28. transmission pulley; 29. ​​transmission belt; 30. injection pipe; 31. connecting rod II. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-8 As shown, a liquid filling device capable of eliminating water hammer effect comprises a liquid supply pipeline 1, the liquid supply pipeline 1 is connected with a reversing valve body 2, a reversing valve rod 3 is inserted in the reversing valve body 2, both ends of the reversing valve rod 3 are respectively hinged with a shifting rod 4, one end of the shifting rod 4 is hinged on the reversing valve body 2; the reversing valve body 2 is respectively connected with both ends of a hydraulic cylinder 5 through a pipeline, a piston 6 is provided in the hydraulic cylinder 5, a shifting rod 7 is inserted in the piston 6, and adjustable impact blocks 8 are provided on the shifting rod 7 at both ends of the piston 6, and the adjustable impact blocks 8 are fixed to the shifting rod 7 by bolts, wherein the right end of the shifting rod 7 is inserted in a guide sleeve 9; the two ends of the hydraulic cylinder 5 are respectively connected with two stop valves 10 through a pipeline, a valve core 11 is inserted in the stop valve 10, a connecting rod 12 is connected between the two valve cores 11, a fixing rod 13 is fixed on the connecting rod 12, and the left end of the connecting rod 12 A spring fixing seat 15 is arranged on the side, and a compression spring 14 is arranged between the spring fixing seat 15 and the connecting rod 12; the stop valve 10 is connected to the liquid separation cylinder 16 through a pipeline, the liquid separation cylinder 16 is connected to the injection pipe 30, the liquid separation cylinder 16 is inserted with a liquid separation cylinder valve core 17, and the liquid separation cylinder 16 is also provided with a plunger 18, and the two plungers 18 are connected by a connecting rod 21; a fixing plate 19 is fixed on the plunger 18, a rack 20 is arranged on the fixing plate 19, the rack 20 is meshed with a gear 21, the gear 21 is connected to the transmission shaft 22 through a ratchet 23, a pulley 24 is arranged on the transmission shaft 22, the pulley 24 is connected to the pulley arranged on the gearbox 26 through a belt 25, the transmission pulley arranged on the gearbox 26 is connected to the transmission pulley 28 through a transmission belt 27, and a transmission belt 29 is arranged between the transmission pulleys 28;

[0020] The adjustable bumper 8 is wrapped with soft rubber;

[0021] The front end of the fixing rod 13 is provided with a spherical structure.

[0022] In this embodiment, liquid holding devices are evenly arranged on the conveyor belt 29, and the gear 21, the transmission shaft 22 and the ratchet 23 are two groups, and the installation directions of the two groups of ratchet 23 are opposite. When the liquid needs to be packaged, the liquid is first provided to the reversing valve body 2 through the liquid supply pipe 1. At this time, the liquid flows into the upper end of the hydraulic cylinder 5 after passing through the reversing valve body 2, and then flows into the stop valve 10 below. At this time, the stop valve 10 below is in a closed state. The liquid can only squeeze the piston 6 in the hydraulic cylinder 5, and the piston 6 drives the toggle rod 7 to move downward. During the movement, the adjustable collision block 8 on the toggle rod 7 will collide with the toggle rod 4 and the fixed rod 13 for the first time at the same time. At this time, the toggle rod 4 will drive the reversing valve stem 3 to change direction so that the liquid flows into the liquid after passing through the reversing valve body 2. At the same time, the fixed rod 13 drives the valve core 11 through the connecting rod 12 to close the upper stop valve 10 and open the lower stop valve 10; at this time, the liquid squeezes the piston 6 and drives the toggle rod 7 to move upward through the piston 6. At this time, the liquid at the upper end of the hydraulic cylinder 5 enters the liquid separation cylinder 16 below; when the adjustable collision block 8 on the toggle rod 7 collides with the toggle rod 4 and the fixed rod 13 for the second time, the liquid squeezes the piston 6 and drives the toggle rod 7 to move downward through the piston 6. At this time, the liquid enters the upper liquid separation cylinder 16 and enters the upper separation cylinder 16. The liquid in the liquid cylinder 16 will squeeze the lower liquid-distributing cylinder 16 through the lower plunger 18, so that the liquid in the lower liquid-distributing cylinder 16 flows into the liquid-containing device evenly arranged on the lower conveying belt 29; at this time, during the downward movement of the plunger 18, the lower plunger 18 will drive the gear 21 to rotate through the rack 20 arranged on the fixing plate 19, and the gear 21 will not drive the transmission shaft 22 to rotate through the ratchet 23, and the lower conveying belt 29 will not move, and there will be no situation where the lower conveying belt 29 moves while filling. However, when the lower liquid-distributing cylinder 16 When the plunger 18 squeezes the upper liquid separation cylinder 16 to make the liquid in the upper liquid separation cylinder 16 flow into the liquid containing device evenly arranged on the upper conveyor belt 29, the lower plunger 18 will drive the gear 21 to rotate through the rack 20 arranged on the fixed plate 19, and the gear 21 will drive the transmission shaft 22 to rotate through the ratchet 23, thereby driving the lower conveyor belt 29 to move, so that the empty liquid containing device reaches the bottom of the lower filling pipe 30, waiting for the next filling; the principle is the same, and the situation where the upper conveyor belt 29 moves while filling will not occur.

[0023] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A liquid dispensing device capable of eliminating water hammer effect, characterized in that: The invention comprises a liquid supply pipeline (1), wherein the liquid supply pipeline (1) is connected to a reversing valve body (2), a reversing valve rod (3) is inserted in the reversing valve body (2), and the two ends of the reversing valve rod (3) are respectively hinged with a shifting rod (4), and one end of the shifting rod (4) is hinged on the reversing valve body (2); the reversing valve body (2) is respectively connected to the two ends of a hydraulic cylinder (5) through a pipeline, a piston (6) is provided in the hydraulic cylinder (5), a shifting rod (7) is inserted in the piston (6), and the two ends of the piston (6) are respectively connected to the two ends of the hydraulic cylinder (5). An adjustable bumper (8) is provided on the toggle rod (7), wherein the right end of the toggle rod (7) is inserted into the guide sleeve (9); the two ends of the hydraulic cylinder (5) are respectively connected to two stop valves (10) through pipelines, a valve core (11) is inserted in the stop valve (10), a connecting rod (12) is connected between the two valve cores (11), a fixing rod (13) is fixed on the connecting rod (12), a spring fixing seat (15) is provided on the left side of the connecting rod (12), and the spring fixing seat (15) ) and a compression spring (14) is arranged between the connecting rod (12); the stop valve (10) is connected to the liquid separation cylinder (16) through a pipeline, the liquid separation cylinder (16) is connected to a liquid injection pipe (30), a liquid separation cylinder valve core (17) is inserted into the liquid separation cylinder (16), a plunger (18) is also arranged in the liquid separation cylinder (16), and the two plungers (18) are connected by a connecting rod (31); a fixing plate (19) is fixed on the plunger (18), and a fixing plate (19) is arranged on the fixing plate (19) A rack (20), the rack (20) is meshed with a gear (21), the gear (21) is connected to a transmission shaft (22) via a ratchet (23), a pulley (24) is provided on the transmission shaft (22), the pulley (24) is connected to a pulley provided on a gearbox (26) via a belt (25), a transmission pulley provided on the gearbox (26) is connected to a transmission pulley (28) via a transmission belt (27), and a transmission belt (29) is provided between the transmission pulleys (28); The adjustable bumper (8) is wrapped with soft rubber; A spherical structure is provided at the front end of the fixing rod (13).

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