A nitrogen purging device

Abstract

The utility model relates to a gas cylinder treatment equipment technical field, concretely relates to a nitrogen purging device, including outer cleaning lever, the lever body outside surface top of outer cleaning lever is hinged with a plurality of connecting rods, the free end of a plurality of connecting rods all fixedly installed have soft hair brush, the lever body bottom of outer cleaning lever is provided with the drive motor for driving outer cleaning lever rotation and carries out the drive motor of cleaning operation, the lever body bottom of outer cleaning lever is provided with the drive motor for driving outer cleaning lever rotation and carries out the drive motor of cleaning operation, the lever body bottom of outer cleaning lever is provided with the drive motor for driving outer cleaning lever rotation and carries out the drive motor of cleaning operation, outer cleaning lever is hollow structure, and the inside of outer cleaning lever is provided with nitrogen blowing pipe, and outer cleaning lever is rotatably connected with nitrogen blowing pipe, and the top end pipe body of nitrogen blowing pipe is worn from the top end of outer cleaning lever, and the top end pipe body of nitrogen blowing pipe is screw thread connection has tip end shower nozzle, and the top end pipe body of nitrogen blowing pipe still fixedly installed has arc air disc, and the annular outside surface of arc air disc is fixedly installed with a plurality of side edge nozzles. The utility model can combine cleaning and purging through the cooperation of outer cleaning lever and nitrogen blowing pipe, and improve purging effect.

Description

Technical Field

[0001] This utility model relates to the technical field of gas cylinder processing equipment, and more specifically, to a nitrogen purging device. Background Technology

[0002] During the production, maintenance, and reuse of gas cylinders, it is necessary to purge the inside of the cylinders to remove residual gas, impurities, and moisture, ensuring the safe use of the cylinders. Nitrogen is often used as a purging medium because of its stable chemical properties and its resistance to reaction with other substances. When performing nitrogen purging operations on gas cylinders, a corresponding nitrogen purging device is usually used.

[0003] The invention patent with announcement number CN112692012A discloses an empty bottle nitrogen purging device, including a support rod and a motor. The support rod and the motor are fixedly connected. A bearing mechanism is set on the support rod, and a dust suction mechanism and an internal cleaning mechanism are set on the motor. The internal cleaning mechanism includes a vertical shaft II, an exhaust port, a corrugated pipe, a horizontal plate I, a baffle plate, and a vertical hole I. By placing the vertical shaft II into the opening of the nitrogen bottle, the circular plate III moves upward and pushes the connecting rod I and connecting rod III to rotate around the rotating shaft I. The connecting rod I and connecting rod III rotate and spread out to form a V-shape, providing vertical support force to the circular plate I. The connecting rod IV and connecting rod II push the rotating shaft II to move horizontally so that the baffle plate on the horizontal plate I is in contact with the inner wall of the nitrogen bottle. The rotation of the vertical shaft II drives the baffle plate to scrape the inner wall of the nitrogen bottle, removing impurities and rust from the inner wall of the nitrogen bottle, ensuring that the baffle plate is always in contact with the inner wall of the nitrogen bottle, thus improving the cleaning effect of the inner wall.

[0004] While this technical solution has its advantages, most current nitrogen purging devices still have some shortcomings in use. For example, most nitrogen purging devices can only deliver nitrogen through pipelines for purging and cannot perform proper purging operations. When the impurities on the inner wall are firmly bonded, conventional purging methods are insufficient to ensure thorough removal, affecting the purging effect. Therefore, we propose a nitrogen purging device. Utility Model Content

[0005] The purpose of this invention is to provide a nitrogen purging device to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A nitrogen purging device includes an outer cleaning rod. Multiple connecting rods are hinged to the top of the outer side of the outer cleaning rod. Soft brushes are fixedly installed at the free ends of each connecting rod. A drive motor for rotating the outer cleaning rod to perform a cleaning operation is provided at the bottom end of the outer cleaning rod. The outer cleaning rod has a hollow structure, and a nitrogen inlet pipe is installed inside the outer cleaning rod. The outer cleaning rod and the nitrogen inlet pipe are rotatably connected, and the top end of the nitrogen inlet pipe extends from the top end of the outer cleaning rod.

[0007] Preferably, a sealed bearing is provided between the inner wall of the top end of the outer cleaning rod and the outer wall of the nitrogen inlet pipe, and the nitrogen inlet pipe passes through the inner ring of the sealed bearing and is rotatably connected to the inner ring of the sealed bearing. This feature prevents dust and debris from entering the interior of the outer cleaning bar.

[0008] Preferably, a pointed nozzle is threadedly connected to the top end of the nitrogen inlet pipe, and an arc-shaped ventilation disc is fixedly installed on the top end of the nitrogen inlet pipe. Multiple side nozzles are fixedly installed on the annular outer surface of the arc-shaped ventilation disc. This setting improves the blowing effect, making the air blown more evenly.

[0009] Preferably, the plurality of side nozzles are arranged in a ring at equal intervals, and the outer diameter of the arc-shaped ventilation plate is smaller than the inner diameter of the gas cylinder opening; This setting allows the nitrogen inlet tube to be properly inserted into the gas cylinder.

[0010] Preferably, a bottom crossbeam plate is provided below the outer sweeping rod, and a fixing rod for supporting the outer sweeping rod is provided on the bottom crossbeam plate.

[0011] Preferably, a fixed base is fixedly installed at the bottom end of the fixed rod, and the fixed base is detachably installed on the bottom crossbeam plate. The top end of the fixed rod is rotatably sleeved on the outer wall of the bottom end of the outer cleaning rod. This setting allows the fixed base to be fixed in place, thus securing the fixed rod.

[0012] Preferably, a bearing seat is fixedly installed at the top of the fixed rod, and the bottom end of the outer cleaning rod passes through the inner ring of the bearing seat and is rotatably connected to the inner ring of the bearing seat. This feature provides support for the external cleaning bar without affecting its rotation.

[0013] Preferably, a driven gear is fixedly installed on the bottom end of the outer sweeping rod, the drive motor is fixedly installed on the bottom crossbeam plate, a fixed disk is fixedly installed on the output shaft of the drive motor, and a drive gear is detachably installed on the top surface of the fixed disk, and the drive gear and the driven gear mesh with each other; This feature facilitates the rotation of the outer sweeping arm for cleaning operations.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a connecting rod and a soft brush on the outer cleaning rod, combined with a drive motor to rotate the outer cleaning rod, which in turn rotates the connecting rod and the soft brush, thus cleaning the inner wall of the gas cylinder. At the same time, nitrogen is delivered through the nitrogen blowing pipe and sprayed out from the tip nozzle and side nozzle. The combination of cleaning and blowing can remove impurities and gases with strong solidification, solving the problem that conventional blowing is difficult to completely remove impurities and achieving the effect of improving the thoroughness of blowing.

[0015] 2. This utility model sets multiple annularly arranged side nozzles on the arc-shaped ventilation plate of the nitrogen inlet pipe, in conjunction with a pointed nozzle, so that nitrogen can be blown evenly from multiple angles into the inside of the gas cylinder, increasing the contact area between nitrogen and impurities, achieving comprehensive blowing, and thus enhancing the blowing effect.

[0016] 3. This utility model utilizes the external cleaning rod and the nitrogen blowing pipe to be rotatably connected through a sealed bearing, which not only ensures the normal rotation and cleaning of the external cleaning rod, but also prevents dust from entering the interior of the external cleaning rod. The fixed rod and bearing seat support the external cleaning rod, making its rotation stable. The transmission between the driving gear and the driven gear is reliable, making the device operate more stably and achieving the effect of ensuring the reliable operation of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This utility model Figure 1 Enlarged view of point B in the middle; The meanings of the labels in the diagram are as follows: 1. External sweeping bar; 10. Sealed bearing; 11. Connecting rod; 12. Soft brush; 13. Driven gear; 14. Bearing housing; 15. Fixed rod; 151. Fixed base; 16. Drive motor; 161. Fixed disc; 17. Drive gear; 18. Bottom crossbeam plate; 2. Nitrogen inlet pipe; 20. Tip nozzle; 21. Arc-shaped venting disc; 22. Side nozzle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3 This utility model provides a technical solution: a nitrogen purging device, including an outer cleaning rod 1, with multiple connecting rods 11 hinged to the top of the outer side of the outer cleaning rod 1, and soft brushes 12 fixedly installed at the free ends of the multiple connecting rods 11. A drive motor 16 for driving the outer cleaning rod 1 to rotate and perform cleaning operations is provided at the bottom end of the outer cleaning rod 1. The outer cleaning rod 1 is a hollow structure, and a nitrogen inlet pipe 2 is provided inside the outer cleaning rod 1. The outer cleaning rod 1 and the nitrogen inlet pipe 2 are rotatably connected, and the top end of the nitrogen inlet pipe 2 extends out from the top end of the outer cleaning rod 1.

[0020] In use, the gas cylinder is fitted onto the outer cleaning rod 1 and the nitrogen inlet pipe 2. The drive motor 16 drives the outer cleaning rod 1 to rotate, and at the same time, the top of the outer cleaning rod 1 and the nitrogen inlet pipe 2 moves towards the opening of the gas cylinder. This causes the connecting rod 11 and the soft brush 12 to unfold under the action of centrifugal force and adhere to the inner wall of the gas cylinder for cleaning. At the same time, the nitrogen inlet pipe 2 delivers nitrogen for cleaning, so that cleaning and blowing are carried out simultaneously. This can remove stubborn impurities and gases, thereby improving the cleaning effect.

[0021] like Figure 3 As shown, a sealed bearing 10 is provided between the inner wall of the top end of the outer cleaning rod 1 and the outer wall of the nitrogen inlet pipe 2. The nitrogen inlet pipe 2 passes through the inner ring of the sealed bearing 10 and is rotatably connected to the inner ring of the sealed bearing 10, so that the rotation between the outer cleaning rod 1 and the nitrogen inlet pipe 2 does not interfere with each other, while preventing dust from entering the interior of the outer cleaning rod 1, keeping the interior clean, and achieving the effect of ensuring the cleanliness of the device interior.

[0022] like Figure 3 As shown, a pointed nozzle 20 is threadedly connected to the top of the nitrogen inlet pipe 2. An arc-shaped venting disc 21 is also fixedly installed on the top of the nitrogen inlet pipe 2. Multiple side nozzles 22 are fixedly installed on the annular outer surface of the arc-shaped venting disc 21. The pointed nozzle 20 penetrates deep into the gas cylinder to purge the bottom, and the side nozzles 22 are arranged in a ring to purge the inner wall of the gas cylinder, so that nitrogen covers all areas inside the gas cylinder, achieving a uniform purging effect.

[0023] In this embodiment, multiple side nozzles 22 are arranged in a ring with equal spacing, and the outer diameter of the arc-shaped ventilation plate 21 is smaller than the inner diameter of the gas cylinder opening, ensuring that the top of the nitrogen blowing pipe 2 can be smoothly inserted into the gas cylinder, while the nitrogen can fully act on the inner wall, achieving the effect of balancing device compatibility and purging comprehensiveness.

[0024] Specifically, a bottom crossbeam plate 18 is provided below the outer sweeping rod 1, and a fixing rod 15 is provided on the bottom crossbeam plate 18 to support the outer sweeping rod 1. The top end of the fixing rod 15 is rotatably sleeved on the outer wall of the bottom end of the outer sweeping rod 1, so that the outer sweeping rod 1 is not easy to shake when it rotates, ensuring that sweeping and blowing are carried out stably, thereby enhancing the stability of the device.

[0025] like Figure 2 As shown, a fixed base 151 is fixedly installed at the bottom end of the fixed rod 15. The fixed base 151 can be detachably installed on the bottom crossbeam plate 18 to fix the fixed base 151 and thus fix the fixed rod 15.

[0026] like Figure 2 As shown, a bearing seat 14 is fixedly installed at the top of the fixed rod 15. The bottom end of the outer cleaning rod 1 passes through the inner ring of the bearing seat 14 and is rotatably connected to the inner ring of the bearing seat 14. This not only does not hinder the rotation of the outer cleaning rod 1, but also disperses the force on it, making the rotation of the outer cleaning rod 1 smoother and achieving the effect of ensuring smooth rotation.

[0027] like Figure 2 As shown, a driven gear 13 is fixedly installed on the bottom end of the outer sweeping rod 1. The driven gear 13 is located below the bearing seat 14. The drive motor 16 is fixedly installed on the bottom crossbeam plate 18. A fixed disk 161 is fixedly installed on the output shaft of the drive motor 16. A drive gear 17 is detachably installed on the top surface of the fixed disk 161. The drive gear 17 and the driven gear 13 mesh with each other. The drive motor 16 drives the outer sweeping rod 1 to rotate through gear transmission. The transmission is stable and the power is sufficient, making the sweeping operation more efficient and achieving the effect of improving sweeping efficiency.

[0028] It is worth noting that the bottom of the nitrogen inlet pipe 2 is connected to an external nitrogen delivery pipeline. The gas cylinder to be cleaned is hoisted by external hoisting equipment. During the hoisting process, the gas cylinder opening faces downward. As the gas cylinder is placed on the outside of the outer cleaning rod 1 and the nitrogen inlet pipe 2, the external hoisting equipment gradually lifts the gas cylinder as the cleaning process proceeds, enabling the gas cylinder to be purged sequentially from the bottom to the opening.

[0029] Finally, it should be noted that the drive motor 16, the corresponding control system, and the external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0030] When using the nitrogen purging device of this utility model, the gas cylinder is suspended and placed on the outside of the outer cleaning rod 1 and the nitrogen inlet pipe 2, ensuring that the arc-shaped ventilation plate 21 enters the gas cylinder. The drive motor 16 is started, and the outer cleaning rod 1 is rotated through the meshing of the active gear 17 and the driven gear 13. The connecting rod 11 and the soft brush 12 unfold under the action of centrifugal force and clean the inner wall of the gas cylinder. At the same time, nitrogen is delivered through nitrogen blowing pipe 2 and sprayed out from tip nozzle 20 and side nozzle 22 to simultaneously sweep impurities from the inner wall of the gas cylinder. The outer cleaning rod 1 rotates stably under the support of bearing seat 14, and the sealed bearing 10 prevents dust from entering the interior of the outer cleaning rod 1. After purging is complete, turn off drive motor 16 and nitrogen supply, and remove the gas cylinder.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nitrogen purging device, characterized in that: The device includes an outer cleaning rod (1), on which multiple connecting rods (11) are hinged to the top of the outer side of the rod. Each of the free ends of the multiple connecting rods (11) is fixedly equipped with a soft brush (12). A drive motor (16) for driving the outer cleaning rod (1) to rotate and perform cleaning operations is provided at the bottom end of the rod body. The outer cleaning rod (1) is a hollow structure. A nitrogen inlet pipe (2) is provided inside the outer cleaning rod (1). The outer cleaning rod (1) and the nitrogen inlet pipe (2) are rotatably connected. The top end of the nitrogen inlet pipe (2) extends out from the top end of the outer cleaning rod (1).

2. The nitrogen purging device according to claim 1, characterized in that: A sealed bearing (10) is provided between the inner wall of the top end of the outer cleaning rod (1) and the outer wall of the nitrogen inlet pipe (2). The nitrogen inlet pipe (2) passes through the inner ring of the sealed bearing (10) and is rotatably connected to the inner ring of the sealed bearing (10).

3. The nitrogen purging device according to claim 1, characterized in that: The top tube of the nitrogen inlet pipe (2) is threaded with a tip nozzle (20), and an arc-shaped ventilation plate (21) is fixedly installed on the top tube of the nitrogen inlet pipe (2). Multiple side nozzles (22) are fixedly installed on the outer annular surface of the arc-shaped ventilation plate (21).

4. The nitrogen purging device according to claim 3, characterized in that: The multiple side nozzles (22) are arranged in a ring at equal intervals, and the outer diameter of the arc-shaped ventilation plate (21) is smaller than the inner diameter of the gas cylinder opening.

5. The nitrogen purging device according to claim 1, characterized in that: A bottom crossbeam plate (18) is provided below the outer cleaning rod (1), and a fixing rod (15) for supporting the outer cleaning rod (1) is provided on the bottom crossbeam plate (18). The top end of the fixing rod (15) is rotatably sleeved on the outer wall of the bottom end of the outer cleaning rod (1).

6. The nitrogen purging device according to claim 5, characterized in that: The bottom end of the fixing rod (15) is fixedly installed with a fixing base (151), and the fixing base (151) is detachably installed on the bottom crossbeam plate (18).

7. The nitrogen purging device according to claim 6, characterized in that: The top end of the fixed rod (15) is fixedly installed with a bearing seat (14), and the bottom end of the outer cleaning rod (1) passes through the inner ring of the bearing seat (14) and is rotatably connected to the inner ring of the bearing seat (14).

8. The nitrogen purging device according to claim 5, characterized in that: A driven gear (13) is fixedly installed on the bottom end of the outer cleaning rod (1). The drive motor (16) is fixedly installed on the bottom crossbeam plate (18). A fixed disk (161) is fixedly installed on the output shaft of the drive motor (16). A drive gear (17) is detachably installed on the top surface of the fixed disk (161). The drive gear (17) and the driven gear (13) mesh with each other.

Images