A kind of inflator for steel cylinder airtightness detection

Abstract

The utility model relates to cylinder inflation technical field especially relates to a kind of inflation device for steel bottle air tightness detection, including rack, steel bottle conveying device is arranged below the rack, adaptive bottle body positioning device is arranged around the conveying device, the adaptive bottle body positioning device includes valve positioning device, bottle body positioning device and direction adjusting device, the direction adjusting device and bottle body positioning device are oppositely arranged at the both sides of conveying device, automatic inflation device is arranged below the valve positioning device, the inflation device includes automatic inflation head and adaptive bottle body positioning device, can guarantee that inflation head can be accurately inserted steel bottle valve after steel bottle reaches specified position and carries out inflation operation, and automatic inflation can be carried out to inflation head before and after each inflation, ensure the purity of inflation process, reduce the influence of impurity on air tightness detection result.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder filling technology, and in particular to a filling device for testing the air tightness of steel cylinders. Background Technology

[0002] Gas cylinders are mainly used to store high-pressure media such as oxygen and liquefied petroleum gas. Air tightness testing is one of the core links in their production process. The most commonly used air tightness testing method in practice is the water immersion method. Inert gas is filled into the gas cylinder, pressurized and sealed, and then the gas cylinder is placed in a water pool to observe whether bubbles are generated. This serves as a direct criterion for judging whether its sealing performance is qualified.

[0003] The patent application with publication number CN209893108U discloses a multi-cylinder filling device suitable for forest fire fighting, which can meet the need for simultaneous filling of multiple cylinders. However, the device cannot be used to fill cylinders of different specifications. Furthermore, if impurities adhere to the filling pipe during filling, these impurities will be filled into the cylinder, affecting its performance.

[0004] Based on the above-mentioned technical problems, this utility model proposes an inflation device for testing the air tightness of steel cylinders. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an inflation device for testing the air tightness of steel cylinders, so as to solve the above-mentioned technical problems.

[0006] This utility model is achieved through the following technical solution: a gas cylinder air tightness testing inflation device, including a frame, a gas cylinder conveying device arranged below the frame, an adaptive bottle positioning device arranged around the conveying device, the adaptive bottle positioning device including a valve positioning device, a bottle positioning device and an adjustment device, the adjustment device and the bottle positioning device being arranged opposite to each other on both sides of the conveying device, and an automatic inflation device arranged below the valve positioning device.

[0007] Furthermore, the bottle positioning device is slidably connected to the frame on one side of the conveying device. The bottle positioning device includes a sliding drive device and a limiting wheel. The limiting wheel is horizontally arranged, and two sets of limiting wheels are symmetrically arranged relative to the central axis of the cylinder.

[0008] Furthermore, the directional adjustment device is mounted on the frame on the other side of the conveying device, and a vertical sliding frame is provided between the directional adjustment device and the frame for adjusting cylinders of different heights. The directional adjustment device includes a directional adjustment drive device and a directional adjustment wheel, and the directional adjustment wheel is horizontally mounted and at the same height as the limit wheel.

[0009] Furthermore, the valve positioning device is positioned directly above the conveying device. The valve positioning device includes a height limiting cylinder, a top sliding plate, and a positioning block. The positioning block is equipped with a contact sensor to determine the valve position. The top sliding plate is positioned below the height limiting cylinder. The fixed end of the height limiting cylinder is fixedly connected to the frame, and the working end is fixedly connected to the top sliding plate. The positioning block is positioned below the top sliding plate.

[0010] Furthermore, a directional sensor is provided above the directional device, and the directional sensor is located on the left side of the valve positioning device. The directional sensor is fixedly connected to the top slide plate.

[0011] Furthermore, the automatic inflation device is fixedly connected to the top slide plate, and the automatic inflation device is located above the steering device. The automatic inflation device includes a mounting frame and an inflation assembly. The mounting frame is fixedly mounted on the frame, and the inflation assembly is mounted on the mounting frame.

[0012] Furthermore, the inflation assembly includes an inflation guide device and an inflation pipe. The inflation guide device is fixedly connected to the mounting frame, the inflation pipe is fixedly installed at the front end of the inflation guide device, and a pressure sensor is installed at the rear end of the inflation pipe.

[0013] The beneficial effects of this utility model are as follows: A gas filling device for testing the air tightness of steel cylinders includes a frame, a steel cylinder conveying device is arranged below the frame, and an adaptive cylinder positioning device is arranged around the conveying device. The adaptive cylinder positioning device includes a valve positioning device, a cylinder positioning device, and an adjusting device. The adjusting device and the cylinder positioning device are arranged opposite to each other on both sides of the conveying device. An automatic filling device is arranged below the valve positioning device. Through the adaptive cylinder positioning device, the device can be applied to steel cylinders of different specifications, realizing automatic clamping and positioning of steel cylinders of different specifications. Through the automatic filling device, the filling pipeline can be automatically filled before and after filling the steel cylinder. During the filling process, the gas pressure of the steel cylinder is automatically detected, thereby ensuring the accuracy of the gas tightness test and improving the overall quality and reliability of the gas tightness test. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall appearance of the equipment; Figure 2 This is a schematic diagram of the overall structure of the equipment; Figure 3 This is a schematic diagram of the internal structure of the inflation device.

[0015] In the diagram: 1. Frame; 2. Conveying device; 3. Control panel; 4. Mounting plate; 41. Cylinder 1; 42. Slide rod; 43. Sliding plate; 44. Positioning wheel; 5. Fixing frame; 51. Sprocket; 52. Directional wheel; 6. Top frame; 61. Top sliding plate; 62. Cylinder 2; 63. Guide plate; 64. Position sensor; 7. Mounting frame; 71. Positioning block; 8. Cylinder 3; 81. Inflation pipe. Detailed Implementation

[0016] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0018] Example 1 like Figure 1-3 As shown, this embodiment discloses an inflation device for testing the air tightness of a gas cylinder, including a frame 1, a conveying device 2 installed below the frame 1, a gas cylinder inlet at the front of the frame 1, a gas cylinder outlet at the rear of the frame 1, and an adaptive bottle positioning device installed around the conveying device 2. The adaptive bottle positioning device includes a valve positioning device, a bottle positioning device, and an adjustment device.

[0019] like Figure 2 and 3As shown, the bottle positioning device is installed on the right frame 1 of the conveying device. The bottle positioning device includes a mounting plate 4, which is mounted on the frame 1 via a vertical sliding frame. A sliding drive device, which is a cylinder 41, is installed on the mounting frame 4. The fixed end of the cylinder 41 is fixedly mounted on the mounting plate 4, and the working end of the cylinder 41 is fixedly connected to a sliding plate 43. A sliding rod 42 is also installed between the sliding plate 43 and the mounting plate 4 to limit and guide the sliding plate 43. A positioning wheel 44 is rotatably installed on the side of the sliding plate 43 that is close to the conveying device. The positioning wheel 44 is divided into two groups along the central axis of the cylinder and is horizontally installed on one side of the sliding plate 43. An adjustment device is installed on the other side of the conveying device corresponding to the bottle positioning device.

[0020] The directional adjustment device is installed on the frame 1 on the left side of the conveying device. The directional adjustment device includes a fixed frame 5, which is connected to the frame 1 through a vertical sliding frame. A directional adjustment wheel 52 is rotatably installed on the inner side of the fixed frame 5. The directional adjustment wheel 52 is also divided into two groups and horizontally installed on one side of the fixed frame 5. The height of the directional adjustment wheel 52 is the same as that of the positioning wheel. The same sprocket is installed on the connecting shaft of the two groups of directional adjustment wheels 52. A double row sprocket 51 is installed above the fixed frame 5. A transmission chain is installed between the double row sprocket and the sprocket of the directional adjustment wheel 52. A directional adjustment motor is installed below the double row sprocket 51. The directional adjustment motor drives the directional adjustment wheel 52 to rotate to adjust the direction of the gas cylinder filling pipe.

[0021] A valve positioning device is installed directly above the conveying device. The valve positioning device includes a top frame 6 and a height limiting cylinder. The top frame 6 is fixedly connected to the frame 1. The height limiting cylinder is cylinder 62. The cylinder body of cylinder 62 is fixedly connected to the top frame 6. The push rod of cylinder 62 is fixedly connected to the top slide plate 61. A guide plate 63 is slidably installed between the top slide plate 61 and cylinder 62. The guide plate 63 is fixedly installed on the frame 1 and is used to guide the top slide plate 61. A positioning block 71 is installed below the top slide plate 61. A contact sensor is installed inside the positioning block 71, which can accurately position the valve of the gas cylinder.

[0022] An orientation sensor, or position sensor 64, is installed below the top slide plate. The position sensor 64 is used to detect the angle of the gas cylinder.

[0023] An adaptive inflation device is installed on the left side of the valve positioning device. The adaptive inflation device is installed directly above the directional device. The adaptive inflation device includes a mounting frame 7, which is fixedly connected to the top slide plate 63. The mounting frame 7 moves synchronously with the top slide plate 63 and can adapt to cylinders of different heights. An inflation guide device is installed on the mounting frame 7, wherein the inflation guide device is a cylinder 8.

[0024] The inflation assembly includes an inflation guide device, which is a cylinder 8. The cylinder 8 is fixedly mounted on the mounting bracket 7. An inflation pipe 81 is installed at the front end of the cylinder 8. The inflation pipe is fixedly connected to the push rod of the cylinder 8. The cylinder 8 drives the inflation pipe 81 to move. A pressure sensor is installed at the tail end of the inflation pipe 81 to detect the inflation pressure.

[0025] In use, first adjust the height of the cylinder positioning device and the orientation device according to the height of the cylinder. Then, the conveying device 2 transports multiple equally spaced cylinders to the cylinder positioning device and the orientation device at a fixed length. Cylinder 1 41 drives the sliding plate 43 to move forward, and the positioning wheel 44 pushes the cylinder forward to contact the orientation wheel 52. The positioning wheel 44 and the orientation wheel 52 limit the cylinder. After the limit is completed, the orientation motor is started to drive the orientation wheel 52 to rotate, thereby adjusting the angle of the cylinder. When the position sensor 64 detects the cylinder filling pipe, the orientation motor stops working, the angle adjustment is completed, cylinder 2 62 is started, pushes the positioning block to move downward, presses the cylinder, and limits the cylinder.

[0026] Then, cylinder 3 (8) starts working, driving the inflation pipe 81 to move back and forth, so that the inflation pipe 81 is inserted into the cylinder inflation tube, realizing automatic inflation. After inflation is completed, cylinder 3 (8) drives the inflation pipe 81 to reset. During the inflation process, the pressure sensor monitors the inflation pressure in real time and transmits the data to the control system. When the pressure reaches the preset value, the control system issues a command to stop inflation, ensuring the safety and accuracy of the inflation process.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas filling device for testing the airtightness of gas cylinders, comprising a frame, wherein a gas cylinder conveying device is disposed below the frame, characterized in that, An adaptive bottle positioning device is provided around the conveying device. The adaptive bottle positioning device includes a valve positioning device, a bottle positioning device, and an adjustment device. The adjustment device and the bottle positioning device are arranged opposite to each other on both sides of the conveying device. An automatic inflation device is provided below the valve positioning device.

2. The gas filling device for testing the air tightness of a gas cylinder according to claim 1, characterized in that, The bottle positioning device is slidably connected to the frame on one side of the conveying device. The bottle positioning device includes a sliding drive device and a limiting wheel. The limiting wheel is horizontally arranged and is symmetrically arranged in two sets with respect to the central axis of the cylinder.

3. A gas filling device for testing the air tightness of a gas cylinder according to claim 1 or 2, characterized in that, The directional device is mounted on the frame on the other side of the conveying device. A vertical sliding frame is provided between the directional device and the frame to adjust the cylinders at different heights. The directional device includes a directional drive device and a directional wheel. The directional wheel is horizontally positioned and at the same height as the limit wheel.

4. The gas filling device for testing the air tightness of a gas cylinder according to claim 1, characterized in that, The valve positioning device is located directly above the conveying device. The valve positioning device includes a height limiting cylinder, a top sliding plate, and a positioning block. The positioning block is equipped with a contact sensor to determine the valve position. The top sliding plate is located below the height limiting cylinder. The fixed end of the height limiting cylinder is fixedly connected to the frame, and the working end is fixedly connected to the top sliding plate. The positioning block is located below the top sliding plate.

5. The gas filling device for testing the airtightness of a gas cylinder according to claim 3, characterized in that, A directional sensor is installed above the directional device, and the directional sensor is located on the left side of the valve positioning device. The directional sensor is fixedly connected to the top slide plate.

6. The gas filling device for testing the airtightness of a gas cylinder according to claim 1, characterized in that, The automatic inflation device is fixedly connected to the top slide plate and is located above the steering device. The automatic inflation device includes a mounting frame and an inflation assembly. The mounting frame is fixedly mounted on the frame, and the inflation assembly is mounted on the mounting frame.

7. The gas filling device for testing the airtightness of a gas cylinder according to claim 6, characterized in that, The inflation assembly includes an inflation guide device and an inflation pipe. The inflation guide device is fixedly connected to the mounting frame, the inflation pipe is fixedly installed at the front end of the inflation guide device, and a pressure sensor is installed at the rear end of the inflation pipe.

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