Operating mechanism for detecting sealing performance of oil tank

Abstract

The utility model discloses an operating mechanism for oil tank sealing performance detection, which belongs to the technical field of automobile oil tank sealing performance detection and comprises a workbench and a water tank arranged below the workbench. The driving air cylinder is connected with a supporting platform used for containing an oil tank through a connecting piece extending to the position below the workbench, an air pump is installed on the workbench and connected with an air port of the oil tank through a pipeline, a transparent cylinder communicated with the pipeline is fixedly installed on the workbench, and an air port communicated with the pipeline is formed in the transparent cylinder. A baffle capable of blocking the air opening is installed in the transparent cylinder in a sliding mode, and a spring is fixedly connected between the baffle and the inner wall of the transparent cylinder. Through the arrangement of the transparent cylinder, an operator can conveniently distinguish whether the pressure in the oil tank is saturated or not, and the sealing performance of the oil tank is judged by observing the movement of the baffle and whether bubbles are generated in the water tank or not.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile fuel tank sealing detection, and particularly relates to an operating mechanism for fuel tank sealing detection. Background Technique

[0002] The safety of the fuel tank directly affects the safety of the vehicle. After the automobile fuel tank is manufactured, it is necessary to detect the sealing performance of the fuel tank.

[0003] In the prior art, a Chinese patent with the publication number of CN211978233 U discloses a vehicle fuel tank sealing detection device, which inputs compressed air into the fuel tank body and determines the sealing performance of the fuel tank body by whether bubbles are generated. However, when the above technology is implemented, it is difficult to judge the amount of air entering the fuel tank. If the amount of air is insufficient, it is difficult for the air to leak out of the fuel tank, resulting in inaccurate sealing detection. If the amount of air is too much, the internal pressure of the fuel tank is relatively large, and if inflation continues, the fuel tank will be damaged.

[0004] Therefore, an operating mechanism for fuel tank sealing detection needs to be proposed to solve the above problems. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide an operating mechanism for fuel tank sealing detection, which is used to solve the problem that it is difficult to judge the saturation degree of the amount of air entering the fuel tank in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides an operating mechanism for fuel tank sealing detection, which includes a workbench and a water tank arranged below the workbench. A driving cylinder for outputting linear motion is installed on the workbench. The driving cylinder is connected with a support platform for placing the fuel tank through a connecting piece extending below the workbench. An air pump is installed on the workbench. The air pump is connected with the fuel tank air vent through a pipeline. A transparent cylinder communicated with the pipeline is fixedly installed on the workbench. An air port communicated with the pipeline is arranged in the transparent cylinder. A baffle capable of blocking the air port is slidably installed in the transparent cylinder. A spring is fixedly connected between the baffle and the inner wall of the transparent cylinder.

[0008] Further, the connecting piece includes a sliding rod fixedly connected with the support platform. The sliding rod is slidably connected with the workbench. The end of the sliding rod far away from the workbench is fixedly connected with an output shaft fixedly installed at the output end of the driving cylinder.

[0009] Further, the number of the sliding rods is four. The four sliding rods are respectively fixedly connected with the four corner ends of the top of the support platform. The four sliding rods extend above the workbench and are connected into a whole through a connecting plate. The end of the output shaft far away from the driving cylinder is fixedly connected with the connecting plate.

[0010] Further, a one-way valve that enables gas to flow unidirectionally from the air pump to the pipeline is installed between the air pump and the pipeline.

[0011] Further, a notch for the pipeline to pass through is provided on the workbench, and the area of the notch is larger than the cross-sectional area of the pipeline.

[0012] Further, clamping plates are installed on the support platform. The first end of the clamping plate is rotatably connected to the support platform, and the second end of the clamping plate is threadedly connected to the support platform through bolts.

[0013] Further, a pressing plate that cooperates with the top of the fuel tank is fixedly installed on the side of the clamping plate close to the fuel tank, and an elastic pad is fixedly installed between the clamping plate and the pressing plate.

[0014] Further, a groove that cooperates with the bottom of the fuel tank is provided on the support platform.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By providing a transparent cylinder in the present utility model, when the baffle rises a preset distance, the air pump is turned off, and the operator can distinguish whether the pressure in the fuel tank is saturated. By observing whether the baffle will drop due to gas leakage from the fuel tank and combining with whether there are bubbles generated in the water tank, the tightness of the fuel tank can be judged, improving the detection accuracy.

[0017] Other advantages, objectives, and features of the present utility model will be described in the subsequent specification, and to some extent, they are obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the objectives, technical solutions, and beneficial effects of the present utility model clearer, the following drawings are provided for illustration:

[0019] Figure 1 It is a schematic diagram of the overall structure of the operating mechanism of the embodiment of the present utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the operating mechanism of the embodiment of the present utility model;

[0021] Figure 3 It is a schematic diagram of the installation of the clamping plate of the embodiment of the present utility model.

[0022] The markings in the attached drawings are as follows: workbench 1, notch 101, connecting plate 102, water tank 2, driving cylinder 3, output shaft 301, sliding rod 302, fuel tank 4, support platform 5, clamping plate 501, pressing plate 502, elastic pad 503, air pump 6, pipeline 7, transparent cylinder 8, air port 801, baffle plate 802, spring 803. Detailed implementation mode

[0023] As Figures 1 to 3 shown, the present utility model provides an operating mechanism for detecting the sealing performance of a fuel tank, comprising: a workbench 1 and a water tank 2 arranged below the workbench 1. A driving cylinder 3 for outputting linear motion is installed on the workbench 1. The output end of the driving cylinder 3 is fixedly connected with an output shaft 301. The output shaft 301 is fixedly connected with a sliding rod 302. The sliding rod 302 is slidably connected with the workbench 1 along the axis direction of the workbench 1. A support platform 5 for placing the fuel tank 4 is fixedly installed at the end of the sliding rod 302 far away from the output shaft 301. An air pump 6 is installed on the workbench 1. The air pump 6 is connected to the air vent of the fuel tank 4 through a pipeline 7. A transparent cylinder 8 is communicated with the pipeline 7. An air port 801 communicated with the pipeline 7 is arranged in the transparent cylinder 8. A baffle plate 802 capable of blocking the air port 801 is slidably installed in the transparent cylinder 8. A spring 803 is fixedly connected between the baffle plate 802 and the top of the transparent cylinder 8.

[0024] In this solution, as Figure 1 shown, during implementation, first seal all the connection ports of the fuel tank 4, then connect the pipeline 7 to the air vent of the fuel tank 4 to seal the air vent. After fixing the automotive fuel tank 4 on the support platform 5, drive the support platform 5 to move into the water tank 2 through the output of linear motion of the driving cylinder 3, so that the water in the water tank 2 submerges the fuel tank 4. Start the air pump 6 and inflate the air vent of the fuel tank 4 through the pipeline 7. The gas first passes through the transparent cylinder 8 through the pipeline 7 and then enters the fuel tank 4. After the fuel tank 4 is filled with gas, continue to inflate to increase the gas pressure in the pipeline 7, so that the baffle plate 802 rises to open the air port 801. The operator observes the rise of the baffle plate 802 through the transparent cylinder 8, which indicates that the pressure in the fuel tank 4 is in a saturated state. By observing whether there are bubbles generated in the water tank 2, the sealing performance of the fuel tank 4 and the position where the bubbles are generated can be determined, and thus the leakage position of the fuel tank 4 can be judged.

[0025] In this solution, by setting the transparent cylinder 8, when the baffle plate 802 rises a preset distance, turn off the air pump 6. The operator can distinguish whether the pressure in the fuel tank 4 is saturated based on this. By observing whether the baffle plate 802 will drop due to the gas leakage of the fuel tank 4 and combining with whether there are bubbles generated in the water tank 2, the sealing performance of the fuel tank 4 can be judged, improving the detection accuracy.

[0026] In an embodiment of the present utility model, a one-way valve (not shown in the figure) that enables gas to flow unidirectionally from the air pump 6 to the pipeline 7 is installed between the air pump 6 and the pipeline 7.

[0027] In this solution, by setting the one-way valve, gas backflow is avoided, which affects the observation effect of the transparent cylinder 8.

[0028] In an embodiment of the present utility model, a notch 101 for the pipeline 7 to pass through is provided on the workbench 1, and the area of the notch 101 is larger than the cross-sectional area of the pipeline 7.

[0029] In this solution, by setting the notch 101, it is convenient for the pipeline 7 to extend from the workbench 1 to the lower part of the workbench 1 and be connected to the ventilation port of the fuel tank 4.

[0030] In an embodiment of the present utility model, the number of the sliding rods 302 is four. The four sliding rods 302 are respectively fixedly connected to the four corner ends of the top of the support platform 5. The four sliding rods 302 extend above the workbench 1 and are connected into one body through a connecting plate 102. The end of the output shaft 301 away from the driving cylinder 3 is fixedly connected to the connecting plate 102.

[0031] In this solution, by setting the connecting plate 102, one driving cylinder 3 can make the four sliding rods 302 slide synchronously to drive the support platform 5 to move. The sliding rods 302 are slidably connected to the workbench 1 to ensure the stability of the movement of the sliding rods 302, and the four sliding rods 302 ensure the stability of the movement of the support platform 5.

[0032] In an embodiment of the present utility model, a clamping plate 501 is installed on the support platform 5. The first end of the clamping plate 501 is rotatably connected to the support platform 5, and the second end of the clamping plate 501 is threadedly connected to the support platform 5 through a bolt.

[0033] In this solution, when the fuel tank 4 is placed on the support platform 5, the second section of the clamping plate 501 is separated from the support platform 5. By rotating the clamping plate 501, the clamping plate 501 is opened to facilitate placing the fuel tank 4 on the support platform 5. After the fuel tank 4 is placed in place, rotate the clamping plate 501 to cover the fuel tank 4, and then threadedly fix the second end of the clamping plate 501 to the support platform 5 through a bolt to prevent the fuel tank 4 from floating in the water tank 2 due to buoyancy.

[0034] In an embodiment of the present utility model, a pressing plate 502 that cooperates with the top of the fuel tank 4 is fixedly installed on the side of the clamping plate 501 close to the fuel tank 4, and an elastic pad 503 is fixedly installed between the clamping plate 501 and the pressing plate 502.

[0035] In this solution, by setting the elastic pad 503, deformation of the fuel tank 4 caused by excessive pressure is avoided.

[0036] In an embodiment of the present utility model, a groove (not shown in the figure) matching with the bottom of the fuel tank 4 is provided on the support platform 5.

[0037] By providing the groove in this solution, it is convenient to place the fuel tank 4 in the groove to achieve alignment.

[0038] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in terms of form and details without departing from the scope defined by the claims of the present utility model.

Claims

1. An operating mechanism for oil tank sealing detection, comprising a workbench and a water tank arranged below the workbench, characterized in that: A driving cylinder for outputting linear motion is installed on the workbench, and the driving cylinder is connected to a supporting platform for placing an oil tank through a connecting piece extending under the workbench. An air pump is installed on the workbench, and the air pump is connected to an air vent of the oil tank through a pipeline. A transparent cylinder connected to the pipeline is fixedly installed on the workbench, and an air port connected to the pipeline is arranged in the transparent cylinder. A baffle capable of sealing the air port is slidably installed in the transparent cylinder, and a spring is fixedly connected between the baffle and the inner wall of the transparent cylinder.

2. The operating mechanism for oil tank sealing detection according to claim 1, characterized in that: The connecting member comprises a sliding rod fixedly connected to the supporting platform, the sliding rod is slidably connected to the workbench, and the end of the sliding rod away from the workbench is fixedly connected to an output shaft fixedly installed at the output end of the driving cylinder.

3. The operating mechanism for oil tank sealing detection according to claim 2 is characterized in that: There are four slide bars, which are respectively fixedly connected to the four corner ends of the top of the support platform. The four slide bars extend to the top of the workbench and are connected as a whole through a connecting plate. The output shaft is fixedly connected to the connecting plate away from the driving cylinder end.

4. The operating mechanism for oil tank sealing detection according to claim 1, characterized in that: A one-way valve is installed between the air pump and the pipeline to enable gas to flow from the air pump to the pipeline in one direction.

5. The operating mechanism for oil tank sealing detection according to claim 1, characterized in that: The workbench is provided with a notch for the pipeline to pass through, and the area of ​​the notch is larger than the cross-sectional area of ​​the pipeline.

6. The operating mechanism for oil tank sealing detection according to claim 1, characterized in that: A clamping plate is installed on the support platform, a first end of the clamping plate is rotatably connected to the support platform, and a second end of the clamping plate is threadedly connected to the support platform via a bolt.

7. The operating mechanism for oil tank sealing detection according to claim 6, characterized in that: A pressure plate matched with the top of the oil tank is fixedly installed on the clamping plate close to the oil tank side, and an elastic pad is fixedly installed between the clamping plate and the pressure plate.

8. The operating mechanism for oil tank sealing detection according to claim 1, characterized in that: The support platform is provided with a groove matched with the bottom of the oil tank.

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