A fuel tank leak detection device

Abstract

The utility model relates to oil tank detection technical field, concretely relates to an oil tank leak detection device, including base and water tank, water tank fixed mounting is in the base, is equipped with the sliding slot in the water tank, still includes fixing device, fixing device includes the chassis, movable rod, limit board, sliding assembly and push top subassembly, the chassis is through the sliding assembly and is slidably installed in the water tank, movable rod sliding installation is in the chassis, limit board rotatory installation is in movable rod, push top subassembly sets up in the water tank, sliding assembly is convenient for the chassis and slides in the water tank, push top subassembly is convenient for pushing limit board, through the oil tank and places in the chassis, and through push top subassembly to push limit board, make limit board fast fixed oil tank, and further improved the dismounting efficiency of oil tank, and further improved the leak detection efficiency of oil tank.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank testing technology, and in particular to a fuel tank leak testing device. Background Technology

[0002] Testing the sealing of automotive fuel tanks is a crucial step in ensuring driving safety. The current mainstream method involves filling the tank with fuel (or a liquid of equal density) and allowing it to stand for 12 hours before checking for leaks. However, this method is time-consuming and costly, making it unsuitable for the rapid, batch testing needs of modern production lines.

[0003] The existing patent CN221464828U describes a tank leak testing device, comprising a water-filled container, an air pump, a pressure relief valve, a tank cap, a support frame, a lifting mechanism, a rotating mechanism, a rotating locking mechanism, and a tank fixing frame. The air pump and tank cap are connected via a pipeline, the pressure relief valve is located on the pipeline, the tank cap is used to seal the tested tank, the lifting mechanism is fixed to the support frame, and the tank fixing frame is rotatably connected to the moving end of the lifting mechanism via the rotating mechanism. The lifting mechanism raises and lowers the tank fixing frame above or inside the water-filled container, and the rotating mechanism rotates the tested tank and tank fixing frame in a vertical plane. A rotating locking mechanism is provided between the rotating mechanism and the support frame. This invention reduces the cycle of tank leak testing; reduces reliance on and waste of filler materials during leak testing; maximizes the simulation of the tank's airtightness in a real-world environment; can detect leaks that are difficult to detect when the tank is normally stationary; and has strong compatibility and versatility.

[0004] However, in the process of using the above method, the device places the oil tank through the lower fork arm and secures the oil tank with fixing straps. However, the fixing and unfixing of the fixing straps is extremely time-consuming, resulting in low efficiency of oil tank leak testing. Utility Model Content

[0005] The purpose of this utility model is to provide a fuel tank leak testing device, which solves the problem that the aforementioned device places the fuel tank by placing it on the lower fork arm and secures it by binding with a fixing strap, but the binding and unbinding of the fixing strap is extremely time-consuming, resulting in low fuel tank leak testing efficiency.

[0006] To achieve the above objectives, this utility model provides an oil tank leak testing device, including a base and a water tank. The water tank is fixedly installed on the base and has a sliding groove inside. It also includes a fixing device, which includes a base frame, a movable rod, a limiting plate, a sliding assembly, and a pushing assembly. The base frame is slidably installed inside the water tank through the sliding assembly. The movable rod is slidably installed on the base frame. The limiting plate is rotatably installed on the movable rod. The pushing assembly is disposed on the water tank.

[0007] The movable rod is equipped with an upper limit plate and a lower limit plate, both of which are fixedly installed on the movable rod and located on the upper and lower sides of the base frame, respectively.

[0008] The sliding assembly includes a slide rod and a slider. The slide rod is fixedly mounted on the base frame. The slider is fixedly mounted on the slide rod and located at the end of the slide rod away from the base frame. The slider is located within the slide groove.

[0009] The base frame is also equipped with a connecting spring, and the two ends of the connecting spring are fixedly connected to the bottom of the water tank and the base frame, respectively.

[0010] The push assembly includes a mounting frame and a push rod. The mounting frame is fixedly installed on the water tank and a cylinder is provided on the mounting frame. The push rod is fixedly installed on the output end of the cylinder.

[0011] This utility model discloses a leak testing device for an oil tank. In use, the limiting plate is rotated to a vertical position, and the oil tank is placed on the base frame. The limiting plate is then rotated to a horizontal position, and the cylinder is activated. The cylinder drives the push rod downwards, which pushes the limiting plate, causing the limiting plate to move the movable rod down the base frame until the limiting plate presses against the oil tank. The limiting plate is then pushed downwards, causing it to move the oil tank and the base frame downwards until the oil tank is submerged in water. At this point, the external air pump is connected to the oil tank, and air is introduced into the tank. The presence of air bubbles indicates a leak, thus testing the oil tank for leaks. By placing the oil tank on the base frame and using the push assembly to push the limiting plate, the limiting plate quickly secures the oil tank, improving the efficiency of oil tank assembly and disassembly, and further enhancing the leak testing efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of an oil tank leak testing device according to this utility model.

[0014] Figure 2 This is a structural schematic diagram of the fixing device of this utility model.

[0015] In the diagram: 101-base, 102-water tank, 103-slide groove, 104-base frame, 105-moving rod, 106-limiting plate, 107-upper limit plate, 108-lower limit plate, 109-slide rod, 110-slider, 111-connecting spring, 112-mounting bracket, 113-push rod, 114-cylinder. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] The embodiment of this application is as follows:

[0018] Please see Figure 1-2 , Figure 1 This is a schematic diagram of the overall structure of an oil tank leak testing device according to this utility model. Figure 2 This is a structural schematic diagram of the fixing device of this utility model.

[0019] This utility model provides a leak testing device for an oil tank: it includes a base 101 and a water tank 102, and also includes a fixing device. The fixing device includes a base frame 104, a movable rod 105, a limiting plate 106, a sliding assembly, and a pushing assembly. The movable rod 105 is provided with an upper limiting plate 107 and a lower limiting plate 108. The sliding assembly includes a sliding rod 109 and a slider 110. The base frame 104 is also provided with a connecting spring 111. The pushing assembly includes a mounting frame 112 and a pushing rod 113. The above solution solves the problem that the above-mentioned device places the oil tank by placing it on the lower fork arm and fixes it by binding the oil tank with a fixing strap. However, the binding and unbinding of the fixing strap is extremely time-consuming, resulting in low leak testing efficiency of the oil tank.

[0020] In this embodiment, the limiting plate 106 is pushed by the pushing component, so that the limiting plate 106 quickly fixes the oil tank on the base frame 104, thereby improving the efficiency of oil tank disassembly and assembly, and further improving the efficiency of oil tank leak testing.

[0021] The base frame 104 is slidably mounted inside the water tank 102 via the sliding assembly. The movable rod 105 is slidably mounted on the base frame 104. The limiting plate 106 is rotatably mounted on the movable rod 105. The pushing assembly is located on the water tank 102. The base frame 104 has a U-shaped structure. The water tank 102 is filled with water and has a drain pipe with a control valve. The movable rod 105 has a cylindrical structure. The limiting plate 106 is located at the top of the movable rod 105. The sliding assembly facilitates the sliding of the base frame 104 within the water tank 102. The pushing assembly facilitates pushing the limiting plate 106. By placing the oil tank on the base frame 104 and pushing the limiting plate 106 with the pushing assembly, the limiting plate 106 quickly fixes the oil tank, thereby improving the efficiency of oil tank assembly and disassembly, and further improving the leak testing efficiency of the oil tank.

[0022] Secondly, the upper limit plate 107 and the lower limit plate 108 are both fixedly installed on the movable rod 105 and are located on the upper and lower sides of the base frame 104, respectively. The upper limit plate 107 and the lower limit plate 108 are both disc structures, and the axes of the upper limit plate 107 and the lower limit plate 108 are coincident with the axis of the movable rod 105. Through the cooperation of the upper limit plate 107 and the lower limit plate 108, the movable rod 105 is prevented from detaching from the base frame 104.

[0023] Furthermore, the slide rod 109 is fixedly mounted on the base frame 104; the slider 110 is fixedly mounted on the slide rod 109 and located at the end of the slide rod 109 away from the base frame 104. The slider 110 is located in the slide groove 103. The slide rod 109 is welded to both sides of the base frame 104, and the slider 110 is welded to the end of the slide rod 109. Through the sliding engagement of the slider 110 with the slide groove 103 and the connecting action of the slide rod 109, the base frame 104 can move stably within the water tank 102.

[0024] Furthermore, the two ends of the connecting spring 111 are fixedly connected to the bottom of the water tank 102 and the base frame 104, respectively. The connecting spring 111 coincides with the center line of the water tank 102. Through the setting of the connecting spring 111, the connecting spring 111 supports the base frame 104, preventing the base frame 104 from sinking into the water tank 102 initially.

[0025] Finally, the mounting bracket 112 is fixedly mounted on the water tank 102, and the mounting bracket 112 is equipped with a cylinder 114; the push rod 113 is fixedly mounted on the output end of the cylinder 114. The mounting bracket 112 has an L-shaped structure, and the cylinder 114 is fixed on the mounting bracket 112 by screws. The push rod 113 is welded to the output end of the cylinder 114. Through the push of the cylinder 114, the push rod 113 pushes the limiting plate 106.

[0026] In this embodiment, during use, the limiting plate 106 is rotated to a vertical position, then the oil tank is placed on the base frame 104. The limiting plate 106 is then rotated to a horizontal position, and the cylinder 114 is activated. The cylinder 114 drives the push rod 113 downwards, which pushes the limiting plate 106, causing the limiting plate 106 to move the movable rod 105 down along the base frame 104 until the limiting plate 106 presses against the top of the oil tank. The limiting plate 106 is then pushed downwards further, causing the oil tank to... The limiting plate 106 moves the oil tank and the base frame 104 downwards until the oil tank body is submerged in water. At this time, the connecting pipe of the external air pump is connected to the oil tank, and air is introduced into the oil tank. It is observed whether air bubbles are generated in the water tank 102. If air bubbles are generated, it means that the oil tank is leaking, thus realizing the leak test of the oil tank. By placing the oil tank on the base frame 104 and pushing the limiting plate 106 through the pushing component, the limiting plate 106 can quickly fix the oil tank, thereby improving the disassembly and assembly efficiency of the oil tank and further improving the leak test efficiency of the oil tank.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A leak testing device for an oil tank, comprising a base and a water tank, wherein the water tank is fixedly mounted on the base, and a sliding groove is provided inside the water tank, characterized in that, It also includes fixing devices; The fixing device includes a base frame, a movable rod, a limiting plate, a sliding assembly, and a pushing assembly. The base frame is slidably installed inside the water tank via the sliding assembly. The movable rod is slidably installed on the base frame. The limiting plate is rotatably installed on the movable rod. The pushing assembly is disposed on the water tank.

2. The oil tank leak testing device as described in claim 1, characterized in that, The movable rod is equipped with an upper limit plate and a lower limit plate, both of which are fixedly installed on the movable rod and located on the upper and lower sides of the base frame, respectively.

3. The oil tank leak testing device as described in claim 1, characterized in that, The sliding assembly includes a slide rod and a slider. The slide rod is fixedly mounted on the base frame. The slider is fixedly mounted on the slide rod and located at the end of the slide rod away from the base frame. The slider is located within the slide groove.

4. The oil tank leak testing device as described in claim 1, characterized in that, The base frame is also equipped with a connecting spring, and the two ends of the connecting spring are fixedly connected to the bottom of the water tank and the base frame, respectively.

5. The oil tank leak testing device as described in claim 1, characterized in that, The push assembly includes a mounting frame and a push rod. The mounting frame is fixedly installed on the water tank, and a cylinder is provided on the mounting frame. The push rod is fixedly installed on the output end of the cylinder.

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