Air tightness detection device for chain saw oil tank

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By designing an airtightness detection device for chain saw oil tanks, and using the console and air source to synchronize the plug and pressure holding device, the problems of low detection efficiency and large workload in the prior art are solved, and efficient and accurate airtightness detection is achieved.

CN223050800UActive Publication Date: 2025-07-01WUYI HUARUI TOOLS MFG CO LTD

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Patent Information

Application Number: CN202422171277.2
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-09-05
Publication Date: 2025-07-01
Estimated Expiration: 2034-09-05

AI Technical Summary

Technical Problem

The method used in the prior art to detect the airtightness of plastic oil tanks requires manual blocking of the oil tank port, which is inefficient and costly. At the same time, water is required to test the leak and wipe it clean, which increases the workload.

Method used

An airtightness detection device for chain saw oil tank is designed, including a console, a workbench, a limit block, a plug device, a pressure holding device and an air source. The plugging device and pressure holding device are synchronized through the console to block the oil tank hole and tighten the oil tank, and use the air source to detect the airtightness of the oil tank.

Benefits of technology

The device can save detection time, improve working efficiency, and judge the airtightness of the oil tank by detecting pressure values, with high accuracy and no after-care work after water leakage test.

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Abstract

The utility model relates to the technical field of air tightness detection, and provides an air tightness detection device for a chain saw oil tank, which comprises a console, a workbench, a first limiting block, a second limiting block, a plugging device, a pressure maintaining device and an air source, the first limiting block and the second limiting block are used for limiting the movement of the oil tank; the plugging device is used for plugging a hole, through which an oil pipe penetrates, in the oil tank; the pressure maintaining device is used for blocking an oil tank opening, feeding air into the oil tank and further limiting movement of the oil tank. The console is used for controlling the plugging device and the pressure maintaining device to work synchronously and controlling the air source to be pumped into the oil tank. The plugging device and the pressure maintaining device are connected with the air source through pipelines. In the detection process, the air tightness condition of the oil tank can be judged only by placing the oil tank in the oil tank placing position, starting the switch button and prompting through the indicator lamp, and the leakage test efficiency is high; according to the utility model, leakage detection is carried out only through ventilation, water wiping is not needed after leakage detection is finished, and good work after leakage detection is avoided.

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Description

Technical Field

[0001] The utility model relates to the technical field of airtightness detection, and particularly relates to an airtightness detection device for a chainsaw fuel tank. Background Technique

[0002] The airtightness test is mainly to check whether there is any leakage at the connection parts of the container. Since gasoline is contained in the fuel tank, if the fuel tank leaks gasoline, it will cause economic losses and possible fires, so the airtightness test must be carried out.

[0003] However, in the prior art, the airtightness detection of a plastic fuel tank is carried out by blocking the fuel tank opening with the fuel tank mouth cover and then blowing air from the fuel pipe inlet for water leakage detection. But during this detection, it is necessary to manually block the fuel tank opening, which has a high labor cost and low efficiency. In addition, water leakage detection is required, and after the leakage detection, the places where there is water in the fuel tank need to be wiped clean, increasing the workload after the leakage detection. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides the following technical solutions:

[0005] The utility model provides an airtightness detection device for a chainsaw fuel tank, including: a control console, a workbench, a first limiting block, a second limiting block, a plugging device, a pressure maintaining device and a gas source;

[0006] The first limiting block and the second limiting block are used to limit the movement of the fuel tank;

[0007] The plugging device is used to block the hole on the fuel tank for passing the fuel pipe;

[0008] The pressure maintaining device is used to block the fuel tank opening and introduce air into the fuel tank, and further limit the movement of the fuel tank;

[0009] The control console is used to control the synchronous operation of the plugging device and the pressure maintaining device and the gas source to pump air into the fuel tank;

[0010] Both the plugging device and the pressure maintaining device are connected to the gas source through pipelines.

[0011] By synchronously controlling the plugging device and the pressure maintaining device to work through the control console, the detection time can be saved and the work efficiency can be improved.

[0012] Furthermore, the first limiting block, the second limiting block, the plugging device and the pressure maintaining device are all arranged on the workbench.

[0013] Furthermore, the first limiting block, the second limiting block and the pressure maintaining device are adjacent and arranged in different directions, and a placement position for placing the fuel tank is formed in the middle.

[0014] Further, both the first limiting block and the second limiting block include a fixing part and a blocking part, and the fixing part is connected to the blocking part; the fixing part is fixed on the workbench, and the blocking part is used to contact the fuel tank.

[0015] Further, the plugging device includes a support frame and a first driving device. The first driving device is fixedly arranged on the support frame, and a first plug is arranged on the driving shaft of the first driving device. The first plug is configured to be pressed into the hole for passing the oil pipe on the fuel tank under the action of the first driving device.

[0016] Further, the pressure maintaining device includes a second driving device, and a second plug is arranged on the driving shaft of the second driving device. The second plug is configured to be pressed into the fuel tank opening of the fuel tank under the action of the second driving device.

[0017] Further, an air inlet is provided on the second plug, and the air inlet is connected to the air source through a pipeline.

[0018] Further, the first plug and the second plug are made of rubber. When in a ventilated state, the rubber is extruded to deform it, thereby increasing the airtightness between the first plug and the inner wall of the hole for the oil pipe, and between the second plug and the inner wall of the fuel tank opening.

[0019] Further, the pressure maintaining device further includes a pressure sensor for detecting the pressure value inside the fuel tank, and the pressure sensor is connected to the console in a wired or wireless manner.

[0020] Further, both the first driving device and the second driving device are cylinders.

[0021] Preferably, the air source can be provided by an air pump or obtained by compressing air with an air compressor. The specific detection process is as follows:

[0022] Place the fuel tank at the fuel tank placement position, preliminarily limit the fuel tank through the first limiting block and the second limiting block, then turn on the switch of the console. The console conveys the air source (compressed air) to the first driving device and the second driving device to provide power for them. The first driving device drives the first plug to be pressed into the hole for passing the oil pipe on the fuel tank, and the second driving device drives the second plug to be pressed into the fuel tank opening of the fuel tank. At the same time, compressed air is introduced into the fuel tank through the air inlet. Since the second driving device drives the second plug to be pressed into the fuel tank opening to tightly press the fuel tank against the second limiting block or the first limiting block, the fuel tank is further tightened. Due to the pressing of the first plug and the second plug, the fuel tank is in a closed state. Introduce a certain amount of air source into the fuel tank. If the pressure drop is less than 6 Kpa within 5 s, it is determined to be qualified. Further, the pressure value detected by the sensor can be sent to the console, and the console will give a prompt of the determination result through the indicator light, enabling the detection personnel to more clearly and quickly know the detection result.

[0023] The utility model has the following beneficial effects:

[0024] (1) By starting the switch of the console, the console conveys the air source (compressed air) to the first driving device and the second driving device to provide power for them. The first driving device drives the first plug to press into the hole for passing the oil pipe on the fuel tank, and the second driving device drives the second plug to press into the fuel tank opening of the fuel tank. At the same time, compressed air is introduced into the fuel tank through the air inlet. Since the second driving device drives the second plug to press into the fuel tank opening of the fuel tank to tightly press the fuel tank against the second limiting block or the first limiting block, the fuel tank is further tightened. Due to the pressing of the first plug and the second plug, the fuel tank is in a closed state. When a certain air source is introduced into the fuel tank, if the pressure drop is lower than 6 Kpa within 5 s, it can be determined that the air tightness of the fuel tank is good. The detection result can be known more clearly and quickly by the knowledge lamp;

[0025] (2) During the detection process of the utility model, only the fuel tank needs to be placed in the fuel tank placement position, and the switch button is started. Through the prompt of the indicator light, the air tightness of the fuel tank can be judged, and the leak detection efficiency is high;

[0026] (3) The utility model has high measurement accuracy by detecting the pressure value;

[0027] (4) The utility model only performs leak detection by ventilation, and does not need to wipe water after leak detection like using water for leak detection, avoiding the follow-up work after leak detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the utility model.

[0029] Figure 2 is the schematic diagram of the workbench and the tooling on the workbench in the utility model.

[0030] Figure 3 is the schematic diagram of the fuel tank.

[0031] Figure 4 is the placement diagram of the fuel tank detected by the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following makes a detailed description of the specific embodiments of the utility model with reference to the drawings. It should be noted that the embodiments are only specific elaborations of the utility model and should not be regarded as limitations of the utility model. The purpose of the embodiments is to enable those skilled in the art to better understand and reproduce the technical solutions of the utility model. The protection scope of the utility model should still be subject to the scope defined by the claims.

[0033] As Figure 1-2As shown in the figure, the utility model provides an airtightness detection device for a chainsaw fuel tank, including: a control console 1, a workbench 2, a first limit block 3, a second limit block 4, a plugging device 5, a pressure maintaining device 6, and a gas source (not shown).

[0034] The first limit block 3 and the second limit block 4 are used to limit the movement of the fuel tank 7; the first limit block 3, the second limit block 4, the plugging device 5, and the pressure maintaining device 6 are all arranged on the workbench 2. The first limit block 3, the second limit block 4, and the pressure maintaining device 6 are adjacent and arranged in different directions, forming a placement position 8 for placing the fuel tank in the middle. Both the first limit block 3 and the second limit block 4 include a fixed part 31 and a blocking part 32, and the fixed part 31 and the blocking part 32 are connected; the fixed part 31 is fixed on the workbench 2, and the blocking part is used to contact the fuel tank.

[0035] The plugging device 5 is used to plug the hole 71 for passing the fuel pipe on the fuel tank 7; the plugging device 5 includes a support frame 51 and a first driving device 52, the first driving device 52 is fixedly arranged on the support frame 51, and a first plug 53 is arranged on the driving shaft of the first driving device 52, and the first plug 53 is configured to be pressed into the hole 71 for passing the fuel pipe on the fuel tank 7 under the action of the first driving device 52.

[0036] The pressure maintaining device 6 is used to block the fuel tank opening 72 to introduce air into the fuel tank 7 and further limit the movement of the fuel tank 7; the pressure maintaining device 6 includes a second driving device 61, and a second plug 62 is arranged on the driving shaft of the second driving device 61, and the second plug 62 is configured to be pressed into the fuel tank opening 72 of the fuel tank 7 under the action of the second driving device 61. An air inlet 621 is arranged on the second plug 62, and the air inlet 621 is connected to the gas source through a pipeline. The first plug 53 and the second plug 62 are made of rubber. When in a ventilated state, the rubber is extruded to deform it, increasing the airtightness between the first plug 53 and the inner wall of the hole 71 for passing the fuel pipe, and between the second plug 62 and the inner wall of the fuel tank opening 72.

[0037] The pressure maintaining device 6 further includes a pressure sensor for detecting the pressure value in the fuel tank 7, and the pressure sensor is connected to the control console 1 in a wired or wireless manner.

[0038] Preferably, both the first driving device 52 and the second driving device 61 are cylinders.

[0039] The control console 1 is used to control the synchronous operation of the plugging device 5 and the pressure maintaining device 6 and the gas source to pump air into the fuel tank 7. By synchronously controlling the plugging device 5 and the pressure maintaining device 6 to work through the control console 1, the detection time can be saved and the work efficiency can be improved.

[0040] The plugging device 5 and the pressure maintaining device 6 are both connected to the gas source through pipelines.

[0041] Preferably, the gas source can be provided by an air pump or obtained by compressing air with an air compressor. The specific detection process is as follows:

[0042] Place the fuel tank 7 in the fuel tank placement position 8, and initially limit the fuel tank 7 through the first limit block 3 and the second limit block 4. Then, turn on the switch of the control console 1. The control console 1 delivers the gas source (compressed air) to the first driving device 52 and the second driving device 61 to provide power for them. The first driving device 52 drives the first plug 53 to press into the hole 71 for passing the oil pipe on the fuel tank, and the second driving device 61 drives the second plug 62 to press into the fuel tank opening 72 of the fuel tank. At the same time, compressed air is introduced into the fuel tank 7 through the air inlet 621. Since the second driving device 61 drives the second plug 62 to press into the fuel tank opening 72 of the fuel tank 7, the fuel tank 7 is closely pressed against the second limit block 4 or the first limit block 3, further pressing the fuel tank 7 tightly. Due to the pressing of the first plug 53 and the second plug 62, the fuel tank 7 is in a closed state. Introduce a certain gas source into the fuel tank 7. If the pressure drop is lower than 6 Kpa within 5 s, it is determined to be qualified. Further, the pressure value detected by the sensor can be sent to the control console 1, and the control console 1 can prompt the determination result through the indicator light 11, enabling the detection personnel to know the detection result more clearly and quickly.

[0043] It should be noted that the fuel tank in this application is the fuel tank for a chainsaw, and the material of the fuel tank is plastic. By using this application to detect airtightness, there is no need to clamp the fuel tank, and during the detection process, only the fuel tank needs to be placed in the fuel tank placement position, the switch button is turned on, and the airtightness of the fuel tank can be judged through the prompt of the indicator light. The leak detection efficiency is high; the measured accuracy of the detected pressure value is high; since leak detection is carried out through ventilation, there is no need to wipe the water after leak detection like using water for leak detection, avoiding the follow-up work after leak detection.

[0044] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0045] It should be noted that the technical features not detailedly described in the present utility model can all be realized by any existing technology.

Claims

1. An air tightness detection device for a chainsaw oil box, characterized in that: include: A control console, a workbench, a first limit block, a second limit block, a plugging device, a pressure maintaining device and an air source; The first limit block and the second limit block are used to limit the movement of the oil tank; The plugging device is used to plug the hole on the oil tank for passing the oil pipe; The pressure-maintaining device is used to block the oil tank opening from allowing air to enter the oil tank and further restrict the movement of the oil tank; The control console is used to control the synchronous operation of the plugging device and the pressure-maintaining device and the pumping of the air source into the oil tank; The blocking device and the pressure maintaining device are both connected to the gas source through pipelines.

2. The air tightness detection device for a chainsaw oil box according to claim 1, characterized in that: The first limiting block, the second limiting block, the blocking device and the pressure maintaining device are all arranged on the workbench.

3. The air tightness detection device for a chainsaw oil box according to claim 1, characterized in that: The first limit block, the second limit block and the pressure maintaining device are adjacently arranged at different positions, and a placement position for placing the oil tank is formed in the middle.

4. The air tightness detection device for a chainsaw oil box according to claim 1, characterized in that: The first limit block and the second limit block both include a fixing portion and a blocking portion, and the fixing portion and the blocking portion are connected; the fixing portion is fixed on the workbench, and the blocking portion is used to contact the oil tank.

5. The air tightness detection device for a chainsaw oil box according to claim 1, characterized in that: The plugging device includes a support frame and a first driving device, the first driving device is fixedly arranged on the support frame, a first plug is provided on the driving shaft of the first driving device, and the first plug is configured to be pressed into the hole on the oil tank for passing the oil pipe under the action of the first driving device.

6. The air tightness detection device for a chainsaw oil box according to claim 5, characterized in that: The pressure-maintaining device comprises a second driving device, a driving shaft of the second driving device is provided with a second plug, and the second plug is configured to be pressed into the oil tank port of the oil tank under the action of the second driving device.

7. The air tightness detection device for a chainsaw oil box according to claim 6, characterized in that: The second plug is provided with an air inlet, and the air inlet is connected to the air source through a pipeline.

8. The air tightness detection device for a chainsaw oil box according to claim 5, characterized in that: The first plug and the second plug are made of rubber.

9. The air tightness detection device for a chainsaw oil box according to claim 1, characterized in that: The pressure maintaining device also includes a pressure sensor for detecting the pressure value in the oil tank.

10. The air tightness detection device for a chainsaw oil box according to claim 5, characterized in that: The first driving device and the second driving device are both cylinders.