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CN-224231184-U - Automobile oil way pipe fitting air tightness detection device

CN224231184UCN 224231184 UCN224231184 UCN 224231184UCN-224231184-U

Abstract

The utility model relates to the field of air tightness detection, in particular to an air tightness detection device for an automobile oil way pipe fitting, which comprises an air tightness tank, wherein the upper end of the air tightness tank is provided with a sealing plug, the interior of the sealing plug is provided with a liquid injection funnel, one side of the liquid injection funnel is provided with a bent pipe joint in the interior of the sealing plug, one side of the elbow joint is provided with an oil way pipe fitting, a hose is connected between the oil way pipe fitting and the elbow joint, sealing gaskets are arranged at two ends of the hose, two threaded sleeves are sleeved on the outer side of the hose, and an air injection pipe is arranged inside one end, far away from the hose, of the oil way pipe fitting. The solution seals the bottom of the liquid injection funnel, the sealing cover at the end part of the gas injection pipe is integrally inserted into the other end of the oil pipe fitting, the conical plug stretches into the oil pipe fitting to extrude the inside of the oil pipe fitting to seal the passage of the gas injection pipe, and then the solution is injected into the liquid injection funnel, so that the injected liquid can continuously flow into the airtight tank when the integral air tightness of the oil pipe fitting is poor.

Inventors

  • Gong Xuezhi
  • Lin Jianju
  • LIN SHENGJUN

Assignees

  • 昆山元奥精密机械有限公司

Dates

Publication Date
20260512
Application Date
20250616

Claims (8)

  1. 1. The utility model provides an automobile oil circuit pipe fitting gas tightness detection device, includes airtight jar (1), its characterized in that, sealing plug (2) are installed to the upper end of airtight jar (1), the internally mounted of sealing plug (2) has annotates liquid funnel (3), one side of annotating liquid funnel (3) is located the internally mounted of sealing plug (2) has elbow joint (4), one side of elbow joint (4) is provided with oil circuit pipe fitting (6), oil circuit pipe fitting (6) with be connected with hose (5) between elbow joint (4), sealing gasket (501) have all been installed at the both ends of hose (5), two screw sleeve (502) have been cup jointed in the outside of hose (5), oil circuit pipe fitting (6) are located keep away from the inside gas injection pipe (7) that are provided with of one end of hose (5).
  2. 2. The device for detecting the air tightness of the automobile oil circuit pipe fitting according to claim 1, wherein a conical plug (701) is arranged on the outer side wall of the air injection pipe (7), and a sealing cover (702) is arranged on the outer side of the air injection pipe (7) at one end of the conical plug (701).
  3. 3. The device for detecting the air tightness of the automobile oil pipe fitting according to claim 2, wherein threaded connectors (601) are arranged on the outer sides of two ends of the oil pipe fitting (6).
  4. 4. The automobile oil way pipe fitting air tightness detection device according to claim 1, wherein scale marks are arranged on the outer side wall of the liquid injection funnel (3), and the liquid injection funnel (3) and the elbow joint (4) are communicated with the sealing plug (2).
  5. 5. The device for detecting the air tightness of the automobile oil circuit pipe fitting according to claim 1, wherein the liquid injection funnel (3) and the elbow joint (4) are both made of glass materials, and the hose (5) is made of rubber materials.
  6. 6. A vehicle oil line pipe fitting air tightness detection device according to claim 3, characterized in that the threaded sleeve (502) is in meshed rotary connection with the threaded joint (601).
  7. 7. The device for detecting the air tightness of the automobile oil circuit pipe fitting according to claim 1, wherein the length scale of the liquid injection funnel (3) is larger than the length scale of the elbow joint (4).
  8. 8. A vehicle oil line pipe fitting air tightness detection device according to claim 3, characterized in that the sealing cover (702) is in meshed rotary connection with the threaded joint (601).

Description

Automobile oil way pipe fitting air tightness detection device Technical Field The utility model relates to the field of air tightness detection, in particular to an air tightness detection device for an automobile oil circuit pipe fitting. Background The automobile oil way pipe fitting is an important component part of an automobile fuel system and mainly comprises a high-pressure oil way pipe, a fuel pipe, an oil filling pipe, an oil return pipe, an oil cooling pipe and the like, the air tightness detection of the automobile oil way pipe fitting is an important link for ensuring that the automobile oil way pipe fitting does not leak fuel in the use process, the air tightness of the automobile oil way pipe fitting is ensured, the safety and the reliability of the automobile oil way pipe fitting in the use process are ensured, and the detection method mainly comprises an air pressure attenuation method, a vacuum attenuation method, a mass flow test method, a water immersion method and the like. However, the water immersion method in the market at present requires that the whole pipeline is immersed in the liquid for pumping treatment, and is inconvenient to be immersed in the solution because some pipelines are inconvenient to bend. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides an air tightness detection device for an automobile oil circuit pipe fitting, which solves the problems mentioned in the background. The technical scheme includes that the automobile oil way pipe fitting air tightness detection device comprises an air tight tank, wherein a sealing plug is arranged at the upper end of the air tight tank, a liquid injection funnel is arranged in the sealing plug, an elbow joint is arranged in the sealing plug at one side of the liquid injection funnel, an oil way pipe fitting is arranged at one side of the elbow joint, a hose is connected between the oil way pipe fitting and the elbow joint, sealing gaskets are arranged at two ends of the hose, two threaded sleeves are sleeved on the outer side of the hose, and an air injection pipe is arranged in one end of the oil way pipe fitting far away from the hose. As a still further scheme of the utility model, the outer side wall of the gas injection pipe is provided with a conical plug, and one end of the conical plug is positioned at the outer side of the gas injection pipe and is provided with a sealing cover. As a still further scheme of the utility model, threaded connectors are arranged on the outer sides of two ends of the oil way pipe fitting. As still further scheme of the utility model, the outer side wall of the liquid injection funnel is provided with scale marks, and the liquid injection funnel and the elbow joint are both communicated with the sealing plug. As a still further proposal of the utility model, the liquid injection funnel and the elbow joint are both made of glass material, and the hose is made of rubber material. As a still further aspect of the utility model, the threaded sleeve is in meshed rotary connection with the threaded joint. As still further aspects of the present utility model, the length dimension of the filling funnel is greater than the length dimension of the elbow. As a still further proposal of the utility model, the sealing cover is meshed with the threaded joint for rotary connection. Compared with the prior art, the utility model has the beneficial effects that: The solution seals the bottom of the liquid injection funnel, the sealing cover at the end part of the gas injection pipe is integrally inserted into the other end of the oil pipe fitting, the conical plug stretches into the oil pipe fitting to extrude the inside of the oil pipe fitting to seal the passage of the gas injection pipe, and then the solution is injected into the liquid injection funnel, so that the injected liquid can continuously flow into the airtight tank when the integral air tightness of the oil pipe fitting is poor. Utilize the external gas source of gas injection pipe, then utilize gas injection pipe pump gas, then the inside solution of airtight jar can remove to the top of annotating the liquid funnel under the good circumstances of gas tightness, consequently can utilize multiple mode to detect the gas tightness. Drawings FIG. 1 is a schematic diagram of a device for detecting the air tightness of an automotive oil line pipe fitting; FIG. 2 is a schematic view of a hose in an automobile oil line pipe fitting air tightness detection device; FIG. 3 is a cross-sectional view of the whole device in an automobile oil line pipe fitting air tightness detection device; FIG. 4 is a schematic diagram of an installation structure of an air injection pipe in an air tightness detection device for an automobile oil pipe fitting; fig. 5 is a side view of the whole device in the automobile oil line pipe fitting air tightness detection device. In the figure, 1, an airtight tank, 2, a sealing plug, 3,