Central air supply device for printing workshop

Abstract

The utility model discloses a central air supply device for a printing workshop, which comprises a water ring vacuum pump, an air inlet end of the water ring vacuum pump is connected with an air storage tank through an air pipe I; the circulating water tank is arranged on one side of the water ring vacuum pump, a water inlet pipe is arranged on one side of the circulating water tank, a valve is arranged in the middle of the water inlet pipe, a water level limiting assembly is arranged in the circulating water tank, and the water level limiting assembly comprises a liftable floating ball and a plugging ball used for plugging the water inlet pipe. The water level limiting assembly has the advantages that the water level limiting assembly can automatically adjust the water level under the action of the floating ball and the connecting rod, and damage to equipment caused by too low or too high water level is avoided; the overflow box and the floating block system provide multiple protection mechanisms, it is ensured that when the water level is not adjusted in time, water can flow into the overflow box through an overflow pipe, the buoyancy effect of a floating block can push a driving rod to close a water inlet pipe, overflow is prevented, and the stability and safety of equipment are further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of printing workshops, in particular to a centralized air supply device for a printing workshop. Background Art

[0002] In a printing workshop, some equipment requires a negative pressure air source. This negative pressure air source is connected to the ink filtration system. This negative pressure technology removes impurities and particles from the ink, ensuring ink purity and improving the quality of printed products. Other equipment, such as vacuum suction cups, requires a negative pressure air source to generate suction force, enabling precise grasping, handling, and positioning of thin and lightweight items such as paper and printed materials.

[0003] In the process of generating negative pressure, each device is usually equipped with a vacuum pump. When in use, it will generate a lot of noise, and its air pressure is unstable. There is a lack of corresponding processing settings to balance the air pressure. Unstable air pressure will affect the ink filtration effect and the adsorption force of the vacuum suction cup, thereby affecting the quality of printed products and production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a centralized air supply device for a printing workshop to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a centralized air supply device for a printing workshop, comprising:

[0006] Water ring vacuum pump, the air inlet end of the water ring vacuum pump is connected to the air storage tank through the air pipe;

[0007] A circulating water tank is placed on one side of the water ring vacuum pump. A water inlet pipe is provided on one side of the circulating water tank. A valve is provided in the middle of the water inlet pipe. A water level limiting component is provided inside the circulating water tank. The water level limiting component includes a liftable float and a sealing ball for sealing the water inlet pipe.

[0008] The emergency part is placed on the outside of the circulating water tank. The emergency part includes an overflow box and an overflow pipe for connecting the overflow box and the circulating water tank. The overflow box is internally lifted and lowered with a driving rod for closing the valve.

[0009] Preferably, a second air pipe is fixedly connected to one side of the gas storage tank for connection with a negative pressure device.

[0010] Preferably, the water outlet of the water ring vacuum pump is connected to the circulating water tank through a drain pipe, and an electrical cabinet is fixedly connected to one side of the circulating water tank for controlling the operation of the water ring vacuum pump.

[0011] Preferably, the water level limiting assembly further comprises a bracket fixedly connected to the inside of the circulating water tank, one end of the bracket is rotatably connected to a connecting rod with an L-shaped structure, and the float and the connecting rod are respectively fixedly connected to both ends of the connecting rod.

[0012] Preferably, a partition plate is fixedly connected to the inner middle of the overflow box, and the partition plate divides the overflow box into a buoyancy chamber and a water inlet chamber. A drainage hole connecting the buoyancy chamber and the water inlet chamber is provided at the bottom of the partition plate.

[0013] Preferably, a floating block is slidably connected to the interior of the buoyancy chamber, the driving rod is fixed to the top of the floating block, and the top of the driving rod is provided with a slot for placing a valve handle.

[0014] Preferably, a support rod is fixed to the bottom of the floating block to prevent the floating block from blocking the drainage hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the water level limiting component can automatically adjust the water level through the action of the float and the connecting rod, avoiding damage to the equipment caused by too low or too high water level; the overflow box and the float block system provide multiple protection mechanisms to ensure that when the water level fails to be adjusted in time, water can flow into the overflow box through the overflow pipe, and the buoyancy of the float block can push the drive rod to close the water inlet pipe to prevent overflow, thereby further ensuring the stability and safety of the equipment; the water ring vacuum pump adopts a water circulation system, which can circulate the used water into the circulating water tank through the drain pipe, and then be sucked in by the water ring vacuum pump to form a closed water circulation system, reducing water waste and ensuring the efficient operation of the system; the gas storage tank can be connected to the water ring vacuum pump to draw the gas in the gas storage tank into negative pressure, ensuring the stability of the air pressure, thereby reducing the noise generated during system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a structural diagram of the float of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the drive rod of the utility model;

[0019] Figure 4 This is a structural diagram of the support rod of the utility model.

[0020] In the figure: 1. Circulating water tank; 2. Electrical cabinet; 3. Gas storage tank; 4. Gas pipe 1; 5. Gas pipe 2; 6. Drain pipe; 7. Water ring vacuum pump; 8. Overflow box; 9. Water inlet pipe; 10. Float; 11. Connecting rod; 12. Sealing ball; 13. Overflow pipe; 14. Valve; 15. Drive rod; 16. Float block; 17. Partition plate; 18. Support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1 、 2 , 3, and 4, the utility model provides a technical solution: a centralized air supply device for a printing workshop, comprising: a water ring vacuum pump 7, the air inlet end of the water ring vacuum pump 7 is connected to an air storage tank 3 through an air pipe 4, and a pressure gauge is provided on the outside of the air storage tank 3; a circulating water tank 1 is placed on one side of the water ring vacuum pump 7, the bottom of the circulating water tank 1 is connected to the water inlet end of the water ring vacuum pump 7 through a water pipe, a water inlet pipe 9 is fixedly connected to one side of the circulating water tank 1, a valve 14 is fixedly connected to the middle of the water inlet pipe 9, and the valve 14 is Ball valve, a water level limiting component is provided inside the circulating water tank 1, and the water level limiting component includes a liftable float 10 and a sealing ball 12 for sealing the water inlet pipe 9; the emergency part is placed on the outside of the circulating water tank 1, and the emergency part includes an overflow box 8 fixed to one side of the circulating water tank 1 and an overflow pipe 13 for connecting the overflow box 8 and the circulating water tank 1, and the two ends of the overflow pipe 13 are respectively placed in the circulating water tank 1 and the overflow box 8, and the internal lifting of the overflow box 8 is provided with a driving rod 15 for closing the valve 14.

[0023] It should be noted that when the water ring vacuum pump 7 of the present invention is working, the interior of the air storage tank 3 is evacuated into a negative pressure state, and the air storage tank 3 is connected to the negative pressure equipment to ensure the stability of the air pressure and reduce the noise of the equipment. The water ring vacuum pump 7 discharges the used water into the circulating water tank 1, and the water inlet pipe 9 adds water to the inside of the circulating water tank 1. Under the action of the water level limiting component, when the water level is low, the sealing ball 12 is separated from the water inlet pipe 9, and the water inlet pipe 9 replenishes water to the inside of the circulating water tank 1. When the water level is high, under the buoyancy of the float 10, the float 10 blocks the sealing ball 12 on the outside of the water inlet pipe 9 through the connecting rod 11 to control the water level. When the water level limiting component is damaged, water enters the overflow box 8 from the overflow pipe 13. Under the buoyancy of water, the driving rod 15 of the float 16 pushes the handle on one side of the valve 14 upward, thereby closing the water inlet pipe 9 through the valve 14.

[0024] See also Figure 1 As shown, one side of the gas storage tank 3 is fixedly connected to an air pipe 5 for connecting to a negative pressure device. The water outlet of the water ring vacuum pump 7 is connected to the circulating water tank 1 through a drain pipe 6. One side of the circulating water tank 1 is fixedly connected to an electrical cabinet 2 for controlling the operation of the water ring vacuum pump 7.

[0025] It should be noted that, in the present invention, the gas in the gas storage tank is used to supply negative pressure equipment, which itself is a negative pressure source. The water ring vacuum pump 7 discharges the water circulation into the circulating water tank 1 through the drain pipe 6. The bottom of the circulating water tank 1 is connected to the water inlet end of the water ring vacuum pump 7 through a water pipe to realize water circulation. The interior of the electrical cabinet 2 is provided with a controller and a power switch of the water ring vacuum pump 7. A buzzer is fixedly connected to the top of the electrical cabinet 2, which can transfer negative pressure to the connected system when needed. A water level switch is provided inside the overflow box 8, and the water level switch is connected to the buzzer. When there is water inside the overflow box 8, the float 16 and the drive rod 15 close the valve 14, and the buzzer alarms, which is handled by the staff.

[0026] See also Figure 2 、 3 As shown, the water level limiting assembly also includes a bracket fixedly connected to the inside of the circulating water tank 1, one end of the bracket is rotatably connected to an L-shaped connecting rod 11, and the float 10 and the connecting rod 11 are respectively fixedly connected to the two ends of the connecting rod 11.

[0027] It should be noted that the connecting rod 11 of the present invention is an L-shaped structure and is composed of two rods of different lengths. The bending part of the connecting rod 11 rotates with the bracket. The longer end of the connecting rod 11 is located at the bottom and is fixed to the float 10, and the shorter end of the connecting rod 11 is located at the top and is fixed to the sealing ball 12. When the water level is high, the float 10 moves downward, and under the action of the lever principle, the sealing ball 12 moves toward the water outlet of the water inlet pipe 9, and the water inlet pipe 9 is blocked by the sealing ball 12. When the water level is low, the connecting rod 11 moves downward, so that the sealing ball 12 is separated from the water inlet pipe 9, thereby circulating to achieve water level control.

[0028] See also Figure 2 、 3 As shown in Figure 4, a partition plate 17 is fixedly connected to the middle part of the interior of the overflow box 8, and the partition plate 17 divides the overflow box 8 into a buoyancy chamber and a water inlet chamber. A drainage hole connecting the buoyancy chamber and the water inlet chamber is provided at the bottom of the partition plate 17. A float 16 is slidably connected to the inside of the buoyancy chamber. The drive rod 15 is fixed to the top of the float 16. The top of the drive rod 15 is provided with a slot for placing the handle of the valve 14. A support rod 18 is fixed to the bottom of the float 16 to prevent the float 16 from blocking the drainage hole.

[0029] It should be noted that, in the present invention, when the sealing ball 12 is unable to seal the water inlet pipe 9, the water level gradually rises and falls. When the water level reaches the overflow pipe 13, the water enters the overflow box 8 through the overflow pipe 13. The water inlet chamber inside the overflow box 8 is located on the side close to the circulating water tank 1. After the water enters the water inlet chamber, it enters the buoyancy chamber through the drainage hole at the bottom of the partition plate 17. Under the height support of the support rod 18, the water enters the bottom of the float 16. The float 16 is a vacuum plastic box. Under the buoyancy of the water, the float 16 pushes the handle of the valve 14 upward through the drive rod 15, thereby closing the water inlet pipe 9 through the valve 14.

[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0032] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centralized air supply device for a printing workshop, characterized by: include: A water ring vacuum pump (7), wherein the air inlet end of the water ring vacuum pump (7) is connected to an air storage tank (3) via an air pipe (4); A circulating water tank (1) is placed on one side of the water ring vacuum pump (7), a water inlet pipe (9) is provided on one side of the circulating water tank (1), a valve (14) is provided in the middle of the water inlet pipe (9), and a water level limiting component is provided inside the circulating water tank (1), the water level limiting component includes a floating ball (10) that can be raised and lowered and a blocking ball (12) for blocking the water inlet pipe (9); The emergency unit is placed outside the circulating water tank (1), and includes an overflow box (8) and an overflow pipe (13) for connecting the overflow box (8) and the circulating water tank (1). A driving rod (15) for closing a valve (14) is provided inside the overflow box (8).

2. The centralized air supply device for a printing workshop according to claim 1, characterized in that: One side of the gas storage tank (3) is fixedly connected to a second gas pipe (5) for connection with a negative pressure device.

3. The centralized air supply device for a printing workshop according to claim 1, characterized in that: The water outlet end of the water ring vacuum pump (7) is connected to the circulating water tank (1) through a drain pipe (6); an electrical cabinet (2) is fixedly connected to one side of the circulating water tank (1) for controlling the operation of the water ring vacuum pump (7).

4. The centralized air supply device for a printing workshop according to claim 1, characterized in that: The water level limiting assembly further comprises a bracket fixedly connected to the inside of the circulating water tank (1), one end of the bracket being rotatably connected to a connecting rod (11) of an L-shaped structure, and the float (10) and the connecting rod (11) being fixedly connected to both ends of the connecting rod (11), respectively.

5. The centralized air supply device for a printing workshop according to claim 1, characterized in that: A partition plate (17) is fixedly connected to the middle of the overflow box (8), and the partition plate (17) divides the overflow box (8) into a buoyancy chamber and a water inlet chamber. A drainage hole connecting the buoyancy chamber and the water inlet chamber is provided at the bottom of the partition plate (17).

6. The centralized air supply device for a printing workshop according to claim 5, characterized in that: The interior of the buoyancy chamber is slidably connected to a floating block (16), the driving rod (15) is fixed to the top of the floating block (16), and the top of the driving rod (15) is provided with a slot for placing a valve (14) handle.

7. The centralized air supply device for a printing workshop according to claim 6, characterized in that: A support rod (18) is fixed to the bottom of the floating block (16) to prevent the floating block (16) from blocking the drainage hole.

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