Fluid pipeline air tightness detection device for new energy vehicle

Abstract

The utility model discloses a fluid pipeline airtightness detection device for a new energy vehicle. Relates to automobile accessories. The bottom of the sealing supporting seat is detachably and fixedly connected with a workbench, and a first inclined clamping groove matched with the sealing end of the metal oil pipe is formed in the top of the sealing supporting seat; the sealing linear driving mechanism is fixedly arranged on the side portion of the sealing supporting seat in a downward inclining mode, an elastic sealing column which is detachably and fixedly connected is arranged at the piston rod end of the sealing linear driving mechanism, and the elastic sealing column is connected with a first oil nozzle of a metal oil pipe in a sealing mode through stretching of a piston rod of the sealing linear driving mechanism; the bottom of the air inlet supporting seat is detachably and fixedly connected with the workbench, and a second inclined clamping groove matched with the air inlet end of the metal oil pipe is formed in the top of the air inlet supporting seat; the supporting seat is compact and reasonable in structure and layout, the stability and the convenience of metal oil pipe detection are greatly improved, and meanwhile the detection action is directly completed on the workbench.

Description

Technical Field

[0001] This utility model relates to automotive parts, and more particularly to a device for testing the air tightness of fluid pipelines in new energy vehicles. Background Technology

[0002] Fuel lines are widely used in passenger cars, commercial vehicles, and special vehicles. They are a core component of the fuel supply system, directly affecting engine power output and emissions performance. To improve the pass rate of fuel lines after manufacturing, a pressure tester is used to pressurize the pipes and monitor pressure changes to determine their sealing performance. Because metal return lines have many bends, current support clamps cannot stably hold the lines. Typically, one end is manually sealed, while the other end is connected to the intake system to test the airtightness. This method is not only inefficient but also prone to problems such as sealing failure due to improper operation. Utility Model Content

[0003] To address the above problems, this utility model provides a compact, efficient, and stable device for testing the airtightness of fluid pipelines in new energy vehicles.

[0004] The technical solution of this utility model is:

[0005] A device for testing the airtightness of fluid pipelines in new energy vehicles, comprising:

[0006] The sealing support base is detachably and fixedly connected to the worktable at the bottom, and has a first oblique groove at the top that is adapted to the sealing end of the metal oil pipe.

[0007] A sealing linear drive mechanism is fixedly mounted on the side of the sealing support seat at a downward angle. Its piston rod end is provided with a detachably fixed elastic sealing column. Through the extension of the piston rod of the sealing linear drive mechanism, the elastic sealing column is sealed and connected to the first oil nozzle of the metal oil pipe.

[0008] The air intake support base is detachably and fixedly connected to the workbench at the bottom, and is provided with a second oblique groove at the top that is adapted to the air intake end of the metal oil pipe.

[0009] An intake linear drive mechanism is fixedly mounted on the side of the sealing support seat at a downward angle, and its piston rod end is detachably fixedly connected to the tail end of the intake seat; the outer circular surface of the intake seat is provided with a first air hole, and the front end face is provided with a second air hole communicating with the first air hole; an annular elastic sheet is provided at the second air hole and is detachably fixedly connected, and the annular elastic sheet is sealed to the second oil nozzle of the metal oil pipe by the extension of the piston rod of the intake linear drive mechanism.

[0010] Specifically, the sealing linear drive mechanism includes a sealing cylinder, a sealing oil cylinder, or a sealing electric push rod.

[0011] Specifically, the intake linear drive mechanism includes an intake cylinder, an intake hydraulic cylinder, or an intake electric push rod.

[0012] Specifically, a central support portion is provided between the sealing support and the air intake support;

[0013] The bottom of the central support is detachably and fixedly connected to the workbench, and the top is provided with a horizontal slot that matches the middle end of the metal oil pipe.

[0014] Specifically, the side of the central support is provided with a horizontally detachable and fixed marking linear drive mechanism;

[0015] The piston rod end of the marking linear drive mechanism is provided with a detachable and fixedly connected support plate. The support plate is provided with a mounting hole adapted to the marker pen, and the marker pen is detachably and fixedly installed in the mounting hole.

[0016] Specifically, the marking linear drive mechanism includes a marking cylinder, an intake cylinder, or an intake electric push rod.

[0017] This utility model includes a sealing support base, a central support unit, and an air intake support base. After the metal oil pipe is clamped to the testing station by a robotic arm, it is inserted into the sealing support base and the air intake support base. The piston rod ends of the sealing linear drive mechanism and the air intake linear drive mechanism extend out respectively, and an elastic sealing column seals the first oil nozzle of the metal oil pipe. An annular elastic sheet seals the second oil nozzle of the metal oil pipe. Gas enters from the first air hole into the second air hole and then enters the metal oil pipe through the central hole of the annular elastic sheet. When the pressure inside the metal oil pipe reaches the set pressure, air intake stops. After a set pressure holding time, the pressure value is compared to determine whether it is qualified. The structure and layout of the support base are compact and reasonable, greatly improving the stability and convenience of metal oil pipe testing. Simultaneously, the testing action is directly completed on the worktable. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the air intake support.

[0020] Figure 3 This is a three-dimensional structural diagram of the sealing support base;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the central support section;

[0022] 100 in the diagram represents the workbench.

[0023] 210 is the sealing support seat, and 211 is the first inclined groove.

[0024] 220 is the central support section, and 221 is the horizontal slot.

[0025] 300 is a metal oil pipe.

[0026] 400 is a sealed linear drive mechanism.

[0027] 500 is the intake linear drive mechanism, 510 is the intake seat, and 511 is the first air port.

[0028] 600 is the marking linear drive mechanism, 610 is the support plate, and 620 is the marker pen. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is for reference. Figure 1-4 Describe this utility model;

[0033] A device for testing the airtightness of fluid pipelines in new energy vehicles, comprising:

[0034] The sealing support 210 is detachably and fixedly connected to the workbench 100 at the bottom, and has a first oblique groove 211 at the top that is adapted to the sealing end of the metal oil pipe 300.

[0035] The sealing linear drive mechanism 400 is fixedly mounted on the side of the sealing support 210 at a downward angle. Its piston rod end is provided with a detachably fixed elastic sealing column. Through the extension of the piston rod of the sealing linear drive mechanism 400, the elastic sealing column is sealed and connected to the first oil nozzle of the metal oil pipe 300.

[0036] like Figure 3 As shown, the first oil nozzle is provided with an outwardly extending first limiting ring, and the end face of the sealing support 210 is inclined, which is adapted to the first limiting ring, and the first oil nozzle is adapted to be inserted into the first inclined groove 211 on the top of the sealing support 210.

[0037] The air intake support base is detachably and fixedly connected to the workbench 100 at the bottom, and is provided with a second oblique groove at the top that is adapted to the air intake end of the metal oil pipe 300.

[0038] The intake linear drive mechanism 500 is fixedly mounted on the side of the sealing support 210 at a downward angle, and its piston rod end is detachably fixedly connected to the tail end of the intake seat 510; the outer circular surface of the intake seat 510 is provided with a first air hole 511, and the front end surface is provided with a second air hole communicating with the first air hole 511; an annular elastic piece is provided at the second air hole and is detachably fixedly connected, and the annular elastic piece is sealed to the second oil nozzle of the metal oil pipe 300 by the extension of the piston rod of the intake linear drive mechanism 500.

[0039] like Figure 2 The second nozzle is provided with an outwardly extending second limiting ring, and the end face of the air intake support is inclined, which is adapted to the second limiting ring, so that the second nozzle is inserted into the second inclined groove at the top of the air intake support.

[0040] After the metal oil pipe 300 is clamped to the testing station by the robotic arm, it is moved to the set coordinate point and inserted into the sealing support 210 and the air intake support. The piston rod ends of the sealing linear drive mechanism 400 and the air intake linear drive mechanism 500 extend out respectively. The elastic sealing column (made of rubber material) seals the first oil nozzle of the metal oil pipe 300. The annular elastic sheet seals the second oil nozzle of the metal oil pipe 300. Gas enters the second air hole from the first air hole 511 and enters the metal oil pipe 300 from the center hole of the annular elastic sheet. When the pressure inside the metal oil pipe 300 reaches the set pressure, the air intake stops. After the pressure is maintained for a set time, the qualified value is determined by comparing the detected pressure value.

[0041] The sealing linear drive mechanism 400 includes a sealing cylinder, a sealing oil cylinder, or a sealing electric push rod.

[0042] The intake linear drive mechanism 500 includes an intake cylinder, an intake hydraulic cylinder, or an intake electric push rod.

[0043] Further enhance the stability of the 300mm metal tubing support;

[0044] A central support portion 220 is provided between the sealing support 210 and the air intake support;

[0045] The bottom of the middle support 220 is detachably and fixedly connected to the workbench 100, and the top is provided with a horizontal slot 221 that is adapted to the middle of the metal oil pipe 300.

[0046] Further optimization involves activating the linear drive mechanism 600 after the inspection is passed, extending the marker pen 620 to mark the surface of the metal oil pipe 300 for later verification. The specific plan is as follows:

[0047] The side of the central support 220 is provided with a horizontally detachable and fixed marking linear drive mechanism 600;

[0048] The piston rod end of the marking linear drive mechanism 600 is provided with a detachable and fixedly connected support plate 610. The support plate 610 is provided with a mounting hole adapted to the marker pen 620, and the marker pen 620 is detachably and fixedly installed in the mounting hole.

[0049] The linear drive mechanism 600 includes a marking cylinder, an intake cylinder, or an intake electric push rod.

[0050] Regarding the information disclosed in this case, the following points need to be clarified:

[0051] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case; other structures can refer to the general design.

[0052] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0053] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A fluid pipeline airtightness testing device for new energy vehicles, characterized in that, include: The sealing support base (210) is detachably and fixedly connected to the worktable (100) at the bottom, and is provided with a first oblique groove (211) at the top that is adapted to the sealing end of the metal oil pipe (300). The sealing linear drive mechanism (400) is fixedly installed on the side of the sealing support (210) at a downward angle. Its piston rod end is provided with a detachably fixed elastic sealing column. Through the extension of the piston rod of the sealing linear drive mechanism (400), the elastic sealing column is sealed and connected to the first oil nozzle of the metal oil pipe (300). The air intake support base is detachably and fixedly connected to the workbench (100) at the bottom and is provided with a second oblique groove at the top that is adapted to the air intake end of the metal oil pipe (300); The intake linear drive mechanism (500) is fixedly mounted on the side of the sealing support (210) at a downward angle, and its piston rod end is detachably fixedly connected to the tail end of the intake seat (510); the outer circular surface of the intake seat (510) is provided with a first air hole (511), and the front end face is provided with a second air hole communicating with the first air hole (511); the second air hole is provided with a detachably fixedly connected annular elastic sheet, and the annular elastic sheet is sealed to the second oil nozzle of the metal oil pipe (300) by the extension of the piston rod of the intake linear drive mechanism (500).

2. The airtightness testing device for fluid pipelines in new energy vehicles according to claim 1, characterized in that, The sealing linear drive mechanism (400) includes a sealing cylinder, a sealing oil cylinder, or a sealing electric push rod.

3. The airtightness testing device for fluid pipelines in new energy vehicles according to claim 1, characterized in that, The intake linear drive mechanism (500) includes an intake cylinder, an intake hydraulic cylinder, or an intake electric push rod.

4. The airtightness testing device for fluid pipelines in new energy vehicles according to claim 1, characterized in that, A central support (220) is provided between the sealing support (210) and the air intake support. The bottom of the central support (220) is detachably and fixedly connected to the workbench (100), and the top is provided with a horizontal slot (221) adapted to the middle end of the metal oil pipe (300).

5. The airtightness testing device for fluid pipelines in new energy vehicles according to claim 4, characterized in that, The side of the central support (220) is provided with a horizontally detachable and fixed marking linear drive mechanism (600). The piston rod end of the marking linear drive mechanism (600) is provided with a detachable and fixed support plate (610). The support plate (610) is provided with a mounting hole adapted to the marker pen (620). The marker pen (620) is detachably and fixedly installed in the mounting hole.

6. The airtightness testing device for fluid pipelines in new energy vehicles according to claim 5, characterized in that, The marking linear drive mechanism (600) includes a marking cylinder, an intake cylinder, or an intake electric push rod.

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