Leak detection device for oil tank processing

Abstract

The utility model discloses an oil tank processing leak detection device which comprises a bottom frame, a stand column is fixed on the bottom frame, a transparent observation box is installed on the bottom frame, and the transparent observation box is driven to move through a movement driving mechanism installed on the bottom frame. The stand column is provided with a water inlet mechanism used for feeding water into the transparent observation box. A top pressing mechanism is installed on the stand column and used for downwards extruding an oil tank placed in the transparent observation box. The utility model relates to the technical field of leak detection devices, in particular to a leak detection device for oil tank processing, and solves the problems that an existing oil tank is relatively large in volume, large in size, large in size, large in size and high in reliability. The problems that in the prior art, a water inlet groove is not easy to shake after being pressed and is not stable enough and the detection accuracy is affected due to the fact that the water inlet groove is very inconvenient to take and place in the observation box and generates large buoyancy in the water inlet groove and the corners are easy to float when the water inlet groove is pressed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of leak detection devices, in particular to a leak detection device for fuel tank processing. Background Technique

[0002] During the production process of a fuel tank, it is necessary to detect the seal of the welds to ensure the seal of the fuel tank and avoid oil leakage problems. When detecting the seal of the fuel tank, it is necessary to seal each assembly port of the fuel tank and leave one assembly port connected to compressed air, and then immerse the whole in water. It is judged by whether there are bubbles overflowing at the weld. However, because the volume of the fuel tank is relatively large, a large buoyancy will be generated in the water tank, and it is easy to damage the fuel tank when directly pressing the fuel tank downward by a cylinder.

[0003] To solve the above problems, Patent CN211978234U discloses a leak detection and inspection device for semi-finished fuel tanks, including an observation box. At the bottom of both ends of the observation box, symmetrically distributed support columns are provided. U-shaped grooves are vertically opened at the middle and upper positions on the opposite sides of the support columns. A lead screw is rotatably connected in the U-shaped groove. A servo motor is arranged at the top of the support column, and a cross beam is arranged between the two support columns; it also includes an air inlet pipe. A rubber sleeve is arranged on the circumferential outer wall of the air inlet pipe near the bottom end, and a hoop is arranged on the circumferential outer wall of the rubber sleeve. For this leak detection and inspection device for semi-finished fuel tanks, the fuel tank can be pushed downward by the provided servo motor, lead screw, cross beam and upper rubber plate. Due to the action of the lower rubber plate and the first spring, it is possible to avoid direct contact between the fuel tank and the bottom of the observation box, thereby avoiding damage to the fuel tank. The airtightness of the connection between the air inlet pipe and the fuel tank assembly port can be ensured through the rubber sleeve and the hoop.

[0004] However, the following defects and deficiencies exist in the implementation of this device: The volume of the fuel tank is relatively large. On the one hand, it is very inconvenient to take and place it in the observation box. In addition, it will generate a large buoyancy in the water tank, and the corners are easy to float up when pressing it into the water tank, resulting in easy shaking and instability after pressing, affecting the detection accuracy. For this reason, we propose a leak detection device for fuel tank processing. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a leak detection device for fuel tank processing, which solves the problems that the existing fuel tank has a relatively large volume, is very inconvenient to take and place in the observation box on the one hand, and generates a large buoyancy in the water tank on the other hand. When pressing it into the water tank, the corners are easy to float up, resulting in easy shaking and instability after pressing, affecting the detection accuracy.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions: A leak detection device for fuel tank processing, including a chassis, a column is fixed on the chassis, a transparent observation box is installed on the chassis, and the transparent observation box is driven to move by a moving drive mechanism installed on the chassis;

[0007] An inlet mechanism is installed on the column for filling water into the transparent observation box.

[0008] A top pressing mechanism is installed on the column for pressing down on the fuel tank placed inside the transparent observation box.

[0009] Four side pressing mechanisms are installed on the chassis and located on the periphery of the transparent observation box for pressing down on the four corners of the fuel tank placed inside the transparent observation box. The side pressing mechanism includes four third cylinders fixed on the chassis, and an L-shaped pressing head is installed at the output end of the third cylinder.

[0010] Preferably, the moving driving mechanism includes a slide rail fixed on the chassis and a slider fixed on the bottom of the transparent observation box. The slider is slidably clamped on the slide rail, and a first cylinder is fixed on the chassis. One end of the first cylinder is fixedly connected to the transparent observation box.

[0011] Preferably, the slide rail adopts an I-shaped slide rail, the slider adopts an I-shaped slider, and the inner surface size of the slider is adapted to the outer surface size of the slide rail.

[0012] Preferably, the inlet mechanism includes a water pump and a nozzle fixed on the column. The water inlet of the water pump is connected to an external water source through a pipeline, and the water outlet is connected to the nozzle through a pipeline.

[0013] Preferably, the top pressing mechanism includes a second cylinder fixed on the column, and a pressing plate is installed at the bottom end of the second cylinder.

[0014] Preferably, soft rubber layers are fixedly adhered to the bottoms of the pressing plate and the L-shaped pressing head, and the soft rubber layer is made of natural rubber.

[0015] Beneficial effects

[0016] The utility model provides a fuel tank processing leak detection device. Compared with the prior art, it has the following beneficial effects:

[0017] 1. For this fuel tank processing leak detection device, water is filled into the transparent observation box through the inlet mechanism. Seal all the assembly ports of the fuel tank and leave one assembly port connected to compressed air. By starting the second cylinder to drive the pressing plate to move downwards to press the fuel tank so that the whole is immersed in the water inside the transparent observation box, it is judged whether the fuel tank leaks by whether there are bubbles overflowing at the weld. By installing side pressing mechanisms on the chassis and located on the periphery of the transparent observation box, when the pressing plate presses on the top of the fuel tank, start the third cylinder to drive the L-shaped pressing head to move downwards, and press the four corners of the fuel tank through multiple L-shaped pressing heads, thereby preventing the corners from floating up when the fuel tank is immersed in the transparent observation box, making the fuel tank not easy to shake after being immersed in the transparent observation box, more stable, and further facilitating the improvement of detection accuracy.

[0018] 2. The fuel tank processing leak detection device is provided with a moving driving mechanism on the chassis. The moving driving mechanism includes a slide rail, a slider, etc. Starting the first cylinder can perform telescoping to drive the slider to slide on the slide rail, so as to facilitate taking out and placing the fuel tank under the top pressing mechanism from the top and then taking and placing it in the transparent observation box, solving the problem that the existing fuel tank has a relatively large volume and is very inconvenient to take and place in the transparent observation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the first perspective of the present utility model;

[0020] Figure 2 It is a schematic three-dimensional structure diagram of the second perspective of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of an embodiment of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the moving driving mechanism of the present utility model.

[0023] In the figure: 1, chassis; 2, column; 3, transparent observation box; 4, moving driving mechanism; 41, slide rail; 42, slider; 43, first cylinder; 5, water inlet mechanism; 51, water pump; 52, nozzle; 6, top pressing mechanism; 61, second cylinder; 62, pressing plate; 7, side pressing mechanism; 71, third cylinder; 72, L-shaped pressing head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model provides two technical solutions:

[0026] Embodiment 1:

[0027] A fuel tank processing leak detection device includes a chassis 1, a column 2 is fixed on the chassis 1, a transparent observation box 3 is installed on the chassis 1, and the transparent observation box 3 is driven to move by a moving driving mechanism 4 installed on the chassis 1;

[0028] A water inlet mechanism 5 is installed on the column 2 for injecting water into the interior of the transparent observation box 3;

[0029] A top pressing mechanism 6 is installed on the column 2 to squeeze the fuel tank placed in the transparent observation box 3 downward.

[0030] Four side pressing mechanisms 7 are installed on the chassis 1 and on the periphery of the transparent observation box 3, respectively used to squeeze downward at the four corners of the fuel tank placed in the transparent observation box 3. The side pressing mechanism 7 includes four third cylinders 71 fixed on the chassis 1, and an L-shaped pressing head 72 is installed at the output end of the third cylinder 71.

[0031] Embodiment 2:

[0032] The main difference from Embodiment 1 is:

[0033] A fuel tank processing leak detection device. The moving drive mechanism 4 includes a slide rail 41 fixed on the chassis 1 and a slider 42 fixed on the bottom of the transparent observation box 3. The slider 42 is slidably clamped on the slide rail 41. A first cylinder 43 is fixed on the chassis 1. One end of the first cylinder 43 is fixedly connected to the transparent observation box 3. Starting the first cylinder 43 can extend and retract to drive the slider 42 to slide on the slide rail 41, so as to facilitate the removal of the fuel tank from under the top pressing mechanism 6 and the taking and placing in the transparent observation box 3. The slide rail 41 adopts an I-shaped slide rail, and the slider 42 adopts an I-shaped slider. The inner surface size of the slider 42 is adapted to the outer surface size of the slide rail 41. By sliding the slider 42 and clamping it on the slide rail 41, the smoothness of the slider 42 during movement is increased. The water inlet mechanism 5 includes a water pump 51 and a nozzle 52 fixed on the column 2. The water inlet of the water pump 51 is connected to an external water source through a pipeline, and the water outlet is connected to the nozzle 52 through a pipeline. Starting the water pump 51 can extract external water to the nozzle 52 and inject water into the transparent observation box 3 through the nozzle 52. The top pressing mechanism 6 includes a second cylinder 61 fixed on the column 2, and a pressing plate 62 is installed at the bottom end of the second cylinder 61. By injecting water into the transparent observation box 3 through the water inlet mechanism 5, each assembly port of the fuel tank is sealed and one assembly port is connected to compressed air. By starting the second cylinder 61 to drive the pressing plate 62 to move downward to squeeze the fuel tank so that the whole is immersed in the water inside the transparent observation box 3, it is judged whether the fuel tank leaks by whether there are air bubbles overflowing at the weld. Soft rubber layers are fixedly adhered to the bottoms of the pressing plate 62 and the L-shaped pressing head 72. The soft rubber layer is made of natural rubber, and the soft quality reduces the damage to the surface of the fuel tank when the pressing plate 62 and the L-shaped pressing head 72 press the fuel tank.

[0034] When the fuel tank processing leak detection device is in use, place the fuel tank in the transparent observation box 3. Starting the first cylinder 43 can cause it to expand and contract, thereby driving the slider 42 to slide on the slide rail 41, and transporting the transparent observation box 3 to the lower part of the top pressing mechanism 6. Starting the water pump 51 can extract external water to the nozzle 52, and inject water into the transparent observation box 3 through the nozzle 52. Seal each assembly port of the fuel tank and leave one assembly port connected to compressed air. By starting the second cylinder 61 to drive the pressing plate 62 to move downward to squeeze the fuel tank so that the whole is immersed in the water inside the transparent observation box 3, determine whether the fuel tank leaks by whether there are air bubbles overflowing at the weld. By installing the side pressing mechanism 7 on the chassis 1 around the transparent observation box 3, when the pressing plate 62 presses on the top of the fuel tank, start the third cylinder 71 to drive the L-shaped pressing head 72 to move downward to press on the four corners of the fuel tank through a plurality of L-shaped pressing heads 72, so as to prevent the corners from floating up when the fuel tank is immersed in the transparent observation box 3, making the fuel tank not easy to shake after being immersed in the transparent observation box 3, more stable, and thus facilitating the improvement of detection accuracy. After the detection is completed, start the second cylinder 61 to drive the pressing plate 62 to move upward and start the third cylinder 71 to drive the L-shaped pressing head 72 to move upward to release the extrusion of the fuel tank. Starting the first cylinder 43 can cause it to expand and contract, thereby driving the slider 42 to slide on the slide rail 41, and moving the transparent observation box 3 out from under the top pressing mechanism 6, facilitating the removal of the fuel tank. The utility model solves the problem that the existing fuel tank has a relatively large volume and is very inconvenient to take and place in the transparent observation box 3 by setting a moving driving mechanism 4 on the chassis 1. The moving driving mechanism 4 includes a slide rail 41, a slider 42, etc. Starting the first cylinder 43 can cause it to expand and contract, thereby driving the slider 42 to slide on the slide rail 41, so as to facilitate taking and placing the fuel tank in the transparent observation box 3 after moving it out from under the top pressing mechanism 6.

[0035] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device.

[0037] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fuel tank processing leak detection device, comprising a base frame (1), on which a column (2) is fixed, characterized in that: A transparent observation box (3) is installed on the base frame (1), and the transparent observation box (3) is driven to move by a moving drive mechanism (4) installed on the base frame (1); The upright column (2) is provided with a water inlet mechanism (5) for inletting water into the transparent observation box (3); The column (2) is provided with a top pressing mechanism (6) for pressing the oil tank placed in the transparent observation box (3) downwards; Four side pressing mechanisms (7) are installed on the base frame (1) and located on the peripheral side of the transparent observation box (3), and are respectively used to be placed at the four corners of the oil tank in the transparent observation box (3) to press downwards. The side pressing mechanisms (7) include four third cylinders (71) fixed on the base frame (1), and an L-shaped pressing head (72) is installed at the output end of the third cylinder (71).

2. The oil tank processing leak detection device according to claim 1, characterized in that: The mobile drive mechanism (4) comprises a slide rail (41) fixed on the base frame (1) and a slider (42) fixed on the bottom of the transparent observation box (3); the slider (42) is slidably engaged on the slide rail (41); a first cylinder (43) is fixed on the base frame (1); one end of the first cylinder (43) is fixedly connected to the transparent observation box (3).

3. The oil tank processing leak detection device according to claim 2, characterized in that: The slide rail (41) is an I-shaped slide rail, and the slider (42) is an I-shaped slider. The inner dimensions of the slider (42) are matched with the outer dimensions of the slide rail (41).

4. The oil tank processing leak detection device according to claim 1, characterized in that: The water inlet mechanism (5) comprises a water pump (51) and a nozzle (52) fixed on the column (2); the water inlet of the water pump (51) is connected to an external water source via a pipeline, and the water outlet is connected to the nozzle (52) via a pipeline.

5. The oil tank processing leak detection device according to claim 1, characterized in that: The top pressing mechanism (6) comprises a second cylinder (61) fixed on the column (2), and a pressing plate (62) is installed at the bottom end of the second cylinder (61).

6. The oil tank processing leak detection device according to claim 5, characterized in that: The bottoms of the pressing plate (62) and the L-shaped pressing head (72) are both fixedly bonded with a soft rubber layer, and the soft rubber layer is made of natural rubber.

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