Detection device for automobile fuel tank

Abstract

The utility model provides a detection device for an automobile fuel tank, which comprises a water tank, a movable mounting plate capable of moving up and down is arranged in the water tank, movable side clamping plates are symmetrically arranged on the inner side of the movable mounting plate, and a fuel tank body is placed on the movable mounting plate. The two side clamping plates are clamped on the two side walls of the fuel tank body; a detachable sealing cover is arranged at the top of the water tank, an outer pipe vertically penetrates through the inner side of the sealing cover, an air inlet pipe is arranged on the inner side of the outer pipe, an air bag cavity is formed in the inner side of the outer pipe, and the inner side of the air bag cavity can be filled with air. The fuel tank is reasonable in design, the movable mounting plate, the motor, the screw, the threaded block, the fixing rod and the sliding block are arranged in a matched mode, the position of the movable mounting plate can be changed, the position of the movable mounting plate can be lifted out of the water tank, the fuel tank body can be conveniently mounted and dismounted, and the fuel tank body is flatly placed after being lifted; and the water tank is automatically placed in the water tank, so that more time and labor are saved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of automobile fuel tank detection, and in particular to a detection device for an automobile fuel tank. Background Art

[0002] Automobile fuel tank is the full name of automobile fuel tank. At present, with the development of the automobile industry and the revitalization of the domestic automobile industry, the demand for automobile fuel tanks from major automobile manufacturers has shown a clear growth trend.

[0003] The inventor discovered the following defects during the operation of the specific embodiment:

[0004] The air tightness of the fuel tank is judged by the remaining air inside the fuel tank, and the detection performance effect is not obvious, which is not convenient for observation. After searching, for example, the patent application number CN202120066666.2 discloses a patent name of an air tightness detection device for a fuel tank of an automobile. The patent includes: a detection water tank, a fuel tank is placed inside the detection water tank, a fuel tank port is fixedly connected to the top of the fuel tank, a fixed rotating shaft is fixedly installed on the top of the detection water tank, a connecting rod is rotatably installed on the left side of the fixed rotating shaft, a calibration hole is opened inside the pressure seat, and an air inlet is fixedly installed on the top of the pressure seat, a sealing gasket is fixedly installed inside the air inlet, and an external air pipe is fixedly installed on the top of the air inlet. After placing the fuel tank in the detection water tank, the utility model can rotate the pressure seat through the telescopic rod to press the fuel tank into the water, and the fixed cross bar is clamped into the fixed card block to fix the position of the pressure seat, and the calibration hole can fix the position of the fuel tank port to prevent it from shifting, so that the fixed installation of the fuel tank can be completed quickly. Although this application realizes air tightness test by placing the fuel tank inside the water tank, the water tank has a certain depth, and special attention needs to be paid when placing the fuel tank. It needs to be carried and picked up manually and then placed inside the water tank, which is time-consuming and labor-intensive. Secondly, a sealing gasket is used to maintain the internal seal during air intake, but the sealing gasket will wear after use, resulting in a deterioration of the sealing effect, affecting the test results.

[0005] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Utility Model Content

[0006] 1. Technical problems to be solved by the utility model:

[0007] The utility model provides a detection device for a fuel tank of an automobile, which is used to solve the technical problems existing in the above-mentioned background technology.

[0008] 2. Technical solution:

[0009] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a detection device for an automobile fuel tank, comprising a water tank, a movable mounting plate which can be moved up and down is provided inside the water tank, movable side clamping plates are symmetrically provided on the inner side of the movable mounting plate, a fuel tank body is placed on the movable mounting plate, and two side clamping plates are clamped on the two side walls of the fuel tank body; a detachable sealing cover is provided on the top of the water tank, an outer tube is vertically penetrated inside the sealing cover, an air inlet pipe is provided inside the outer tube, an airbag cavity is provided inside the outer tube, and gas can be filled into the airbag cavity.

[0010] Furthermore, a motor is installed on one side of the inner bottom wall of the water tank, and a screw is connected to the output end of the motor. The outer thread of the screw is connected to a threaded block, one end of the threaded block is connected to one side wall of the movable mounting plate, and a fixing rod is fixedly connected to the other side of the inner bottom wall of the water tank, and a slider is slidably connected to the outer side of the fixing rod, and one end of the slider is connected to the other side wall of the movable mounting plate.

[0011] Furthermore, an air pump is correspondingly provided at the top of the sealing cover, the inner side of the air pump is connected with an air supply pipe, and one end of the air supply pipe is connected to the inner side of the airbag cavity.

[0012] Furthermore, an upper portion of one side of the water tank is connected to a water inlet pipe, a lower portion of one side of the water tank is connected to a water outlet pipe, and a plurality of water seepage ports are provided on the bottom wall of the movable mounting plate.

[0013] 3. Beneficial effects:

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] The utility model has a reasonable design. Through the mutual cooperation between the movable mounting plate, the motor, the screw rod, the threaded block, the fixing rod and the sliding block, the position of the movable mounting plate can be changed, and the position of the movable mounting plate can be lifted to the outside of the water tank, so that the fuel tank body can be easily installed and removed. After the fuel tank body is lifted, it can be laid flat and automatically placed inside the water tank, which saves time and effort.

[0016] Through the mutual coordination among the outer tube, the airbag cavity, the air pump and the air delivery pipe, when the air tightness test of the fuel tank body is carried out, gas can be filled into the inner side of the airbag cavity to make it expand and fit tightly with the air intake pipe and the side wall of the sealing cover, thereby improving the sealing effect during the test and thus improving the accuracy of the air tightness test results of the fuel tank body.

[0017] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the outer tube of the utility model.

[0021] Reference numerals:

[0022] 1. Water tank; 101. Water inlet pipe; 102. Water outlet pipe; 2. Movable mounting plate; 201. Water seepage port; 3. Side clamping plate; 4. Fuel tank body; 5. Sealing cover; 6. Outer tube; 601. Air bag cavity; 7. Air inlet pipe; 8. Motor; 9. Screw; 10. Threaded block; 11. Fixed rod; 12. Slider; 16. Air pump; 17. Air pipe. DETAILED DESCRIPTION

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0027] Refer to the attached Figure 1-3 A detection device for a fuel tank of an automobile comprises a water tank 1, wherein a movable mounting plate 2 which can be moved up and down is arranged inside the water tank 1, and movable side clamping plates 3 are symmetrically arranged inside the movable mounting plate 2, and a fuel tank body 4 is placed on the movable mounting plate 2, and two side clamping plates 3 are clamped on two side walls of the fuel tank body 4, and the fuel tank body 4 is placed on the movable mounting plate 2, and the automatic up and down movement of the movable mounting plate 2 makes it convenient to place and take out the fuel tank body 4, saving time and effort; a detachable sealing cover 5 is arranged on the top of the water tank 1, and an outer tube 6 is vertically penetrated inside the sealing cover 5, and an air inlet pipe 7 is arranged inside the outer tube 6, and an air bag cavity 601 is arranged inside the outer tube 6, and the inside of the air bag cavity 601 can be filled with gas to maintain the sealing during the detection process.

[0028] In this embodiment, a motor 8 is installed on one side of the inner bottom wall of the water tank 1, a screw rod 9 is connected to the output end of the motor 8, a threaded block 10 is threadedly connected to the outer side of the screw rod 9, one end of the threaded block 10 is connected to one side wall of the movable mounting plate 2, a fixed rod 11 is fixedly connected to the other side of the inner bottom wall of the water tank 1, a slider 12 is slidably connected to the outer side of the fixed rod 11, and one end of the slider 12 is connected to the other side wall of the movable mounting plate 2.

[0029] It should be noted that the motor 8 is turned on to drive the screw 9 to rotate, and the screw 9 drives the threaded block 10 threadedly connected thereto to drive the movable mounting plate 2 downward. At the same time, the slider 12 slides on the fixed rod 11 to assist the movable mounting plate 2 to move downward stably, so that the movable mounting plate 2 brings the fuel tank body 4 into the interior of the water tank 1.

[0030] In this embodiment, an air pump 16 is correspondingly provided at the top of the sealing cover 5 , and an air delivery pipe 17 is connected to the inner side of the air pump 16 , and one end of the air delivery pipe 17 is connected to the inner side of the airbag cavity 601 .

[0031] It should be noted that by turning on the air pump 16 and using the air pipe 17 to fill the gas into the inner side of the airbag cavity 601, the inner side of the outer tube 6 expands and fits tightly with the outer side wall of the air intake pipe 7, the position of the air inlet of the fuel tank body 4 and the inner side wall of the sealing cover 5 to maintain the sealing during the detection process.

[0032] In this embodiment, an upper portion of one side of the water tank 1 is connected to a water inlet pipe 101 , a lower portion of one side of the water tank 1 is connected to a water outlet pipe 102 , and a plurality of water seepage ports 201 are provided on the bottom wall of the movable mounting plate 2 .

[0033] It should be noted that by opening the valve on the water inlet pipe 101, water is injected into the water tank 1 through the water inlet pipe 101. After the detection is completed, the water is discharged through the water outlet pipe 102 by opening the valve on the water outlet pipe 102. The bottom of the fuel tank body 4 can also be tested for sealing by using the setting of the seepage port 201.

[0034] The working principle of the utility model is as follows: the fuel tank body 4 is placed on the movable mounting plate 2, and the fuel tank body 4 is fixed on the movable mounting plate 2 by squeezing the two side clamping plates 3, and then the motor 8 is turned on to drive the screw rod 9 to rotate, and the screw rod 9 drives the threaded block 10 threadedly connected thereto to drive the movable mounting plate 2 downward to move downward, and at the same time, the slider 12 slides on the fixing rod 11 to assist the movable mounting plate 2 to move downward stably, so that the movable mounting plate 2 brings the fuel tank body 4 into the interior of the water tank 1, and then the sealing cover 5 is covered on the top of the water tank 1, at this time, the bottom of the air inlet pipe 7 is connected with the inner side of the fuel tank body 4, and the gas is filled into the airbag by turning on the air pump 16 and using the air delivery pipe 17. The inner side of the cavity 601 causes the inner side of the outer tube 6 to expand, and fits tightly with the outer side wall of the air inlet pipe 7, the position of the air inlet of the fuel tank body 4 and the inner side wall of the sealing cover 5 to maintain the sealing during the detection process. Then, by opening the valve on the water inlet pipe 101, water is injected into the interior of the water tank 1 through the water inlet pipe 101, and compressed gas is filled into the interior of the fuel tank body 4 through the air inlet pipe 7. The water tank 1 is a visible box. By observing whether there are bubbles on the water surface inside the water tank 1, the test result of the air tightness of the fuel tank body 4 is obtained. After the test is completed, by opening the valve on the water outlet pipe 102, the water is discharged through the water outlet pipe 102, and the fuel tank body 4 can be taken out horizontally by lifting the movable mounting plate 2 upward.

[0035] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A detection device for a vehicle fuel tank, characterized in that: The invention comprises a water tank (1), wherein a movable mounting plate (2) which can be moved up and down is provided inside the water tank (1), and movable side clamping plates (3) are symmetrically provided inside the movable mounting plate (2), and a fuel tank body (4) is placed on the movable mounting plate (2), and two side clamping plates (3) are clamped on two side walls of the fuel tank body (4); a detachable sealing cover (5) is provided on the top of the water tank (1), and an outer tube (6) is vertically penetrated inside the sealing cover (5), and an air inlet pipe (7) is provided inside the outer tube (6), and an air bag cavity (601) is provided inside the outer tube (6), and the inside of the air bag cavity (601) can be filled with gas; A motor (8) is installed on one side of the inner bottom wall of the water tank (1); a screw rod (9) is connected to the output end of the motor (8); a threaded block (10) is externally threadedly connected to the screw rod (9); one end of the threaded block (10) is connected to one side wall of the movable mounting plate (2); a fixed rod (11) is fixedly connected to the other side of the inner bottom wall of the water tank (1); a slider (12) is slidably connected to the outside of the fixed rod (11); one end of the slider (12) is connected to the other side wall of the movable mounting plate (2).

2. The detection device for an automobile fuel tank according to claim 1, characterized in that: An air pump (16) is correspondingly provided at the top of the sealing cover (5), the inner side of the air pump (16) is connected to an air supply pipe (17), and one end of the air supply pipe (17) is connected to the inner side of the airbag cavity (601).

3. The detection device for an automobile fuel tank according to claim 2, characterized in that: The upper portion of one side of the water tank (1) is connected to a water inlet pipe (101), the lower portion of one side of the water tank (1) is connected to a water outlet pipe (102), and a plurality of water seepage ports (201) are provided on the bottom wall of the movable mounting plate (2).

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