Device for detecting sealing performance of fuel filter

Abstract

The utility model relates to the technical field of fuel filter performance detection equipment, in particular to a fuel filter sealing performance detection device. Comprising a water tank and an air pump, a fixing support is fixedly installed above the water tank, spring telescopic rods are symmetrically installed on the fixing support, a first lifting plate is fixedly installed at one end of the bottom of each spring telescopic rod, and a first rubber connector is fixedly installed on the first lifting plate; a second lifting plate is fixedly installed at one end of the bottom of the hydraulic rod and located above the first lifting plate, a connecting device corresponding to the first rubber connector is installed at the bottom of the second lifting plate, and the air pump is connected with the side wall of the connecting device through a hose. The filter can be fixed and taken down conveniently, water does not need to be injected into and drained out of the water pool frequently, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel filter performance detection equipment, in particular to a fuel filter sealing detection device. Background Art

[0002] Fuel filters are used to filter automobile fuel. During production, they need to be sampled to test their sealing properties.

[0003] In the prior art, there is a fuel filter sealing detection device with publication number: CN210014881U, which includes a water pool, and a sealing plate I and a sealing plate II are respectively provided on both sides of the water pool, and a support plate for supporting the fuel filter is provided between the sealing plate I and the sealing plate II, and the support plate is provided with a plurality of grooves I for placing the fuel filter, and the inner surface of the groove I matches the curvature of the outer surface of the fuel filter; an oil inlet pipe and an oil outlet pipe are respectively provided on both sides of the fuel filter, and a blind hole I is provided at the position of the oil outlet pipe corresponding to the sealing plate I, and a tube body with one end sealed is provided in the blind hole I, and a spring is provided between the sealed end of the tube body and the bottom of the blind hole I, the outer wall of the tube body is in contact with and slides with the inner wall of the blind hole I, the side wall of the tube body is provided with an air inlet, and the inner wall of the blind hole I is provided with an air inlet groove.

[0004] When using this device, the fuel filter is secured between sealing plates. A water pump then rapidly flushes the water tank to a depth that covers the fuel filter. The water is then drained after testing is complete. This device has the following drawbacks: frequent filling and draining of the tank is time-consuming. Utility Model Content

[0005] (1) Technical problems solved

[0006] In order to solve the above problems in the prior art, the utility model provides a fuel filter sealing detection device, which is not only convenient for fixing and removing the filter, but also does not require frequent filling and draining of water into the pool, thereby improving detection efficiency.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0009] A fuel filter leak detection device includes a water tank and an air pump. A fixed bracket is fixedly mounted above the water tank, and a spring telescopic rod is symmetrically mounted on the fixed bracket. A first lifting plate is fixedly mounted at one end of the bottom of the spring telescopic rod, and a first rubber joint is fixedly mounted on the first lifting plate. A hydraulic rod is symmetrically mounted in the middle of the fixed bracket, and a second lifting plate is fixedly mounted at one end of the bottom of the hydraulic rod. The second lifting plate is located above the first lifting plate, and a connecting device corresponding to the first rubber joint is mounted at the bottom of the second lifting plate. The air pump is connected to the side wall of the connecting device via a hose. This not only facilitates the fixing and removal of the filter, but also eliminates the need for frequent filling and draining of the tank, thereby improving detection efficiency.

[0010] Preferably, the connecting device includes a connecting sleeve and a second rubber joint, and the air outlet end of the air pump is connected to the connecting sleeve through a hose.

[0011] Preferably, the spring telescopic rod includes a sleeve, a spring, a limit block and a telescopic rod.

[0012] Preferably, the first lifting plate is located above the water tank.

[0013] (3) Beneficial effects

[0014] The utility model provides a fuel filter sealing detection device, which has the following beneficial effects:

[0015] (1) The oil inlet and outlet ends of the filter can be quickly fixed and sealed through the first rubber joint and the connecting device.

[0016] (2) By using the spring telescopic rod and the hydraulic rod in conjunction, the filter is driven to sink below the liquid surface to detect the sealing performance of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the structural diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the connection device of the utility model;

[0019] Figure 3 This is a cross-sectional view of the spring telescopic rod of the utility model.

[0020] In the figure: 1. Water tank; 2. Air pump; 3. Fixed bracket; 4. Spring telescopic rod; 5. First lifting plate; 6. First rubber joint; 7. Hydraulic rod; 8. Second lifting plate; 9. Connecting device; 901. Connecting sleeve; 902. Second rubber joint; 401. Sleeve; 402. Spring; 403. Limit block; 404. Telescopic rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, the fuel filter leak detection device of this embodiment includes a water tank 1 and an air pump 2. A fixed bracket 3 is fixedly mounted above the water tank 1. A spring-loaded telescopic rod 4 is symmetrically mounted on the fixed bracket 3. A first lifting plate 5 is fixedly mounted at one end of the spring-loaded telescopic rod 4. A first rubber joint 6 is fixedly mounted on the first lifting plate 5. A hydraulic rod 7 is symmetrically mounted in the middle of the fixed bracket 3. A second lifting plate 8 is fixedly mounted at one end of the hydraulic rod 7. The second lifting plate 8 is positioned above the first lifting plate 5. The first and second lifting plates 5 and 8 control the filter's movement, thereby performing a leak detection. A connecting device 9 is mounted at the bottom of the second lifting plate 8, corresponding to the first rubber joint 6. The first rubber joint 6 cooperates with the connecting device 9 to secure and seal both ends of the leak detection device. The air pump 2 is connected to the side wall of the connecting device 9 via a hose. The air pump 2 supplies pressure to the fuel filter through the hose and the connecting device 9, thereby performing a leak detection on the filter.

[0023] Furthermore, the connecting device 9 includes a connecting sleeve 901 and a second rubber joint 902. The air outlet of the air pump 2 is connected to the connecting sleeve 901 through a hose. The first rubber joint 6 and the second rubber joint 902 seal and fix the oil inlet and outlet of the filter.

[0024] Furthermore, the spring telescopic rod 4 includes a sleeve 401 , a spring 402 , a limit block 403 and a telescopic rod 404 .

[0025] Furthermore, the first lifting plate 5 is located above the water tank 1 .

[0026] Working principle: The oil inlet or outlet of the filter is inserted into the first rubber joint 6 on the first lifting plate 5. When the hydraulic cylinder 7 drives the second lifting plate 8 to descend to a certain extent, the second rubber joint 902 is bent, and then the oil outlet or oil inlet of the other end of the filter is inserted into the second rubber joint 902. When the hydraulic cylinder 7 drives the second lifting plate 8 to continue to descend, on the one hand, the first rubber joint 6 and the second rubber joint 902 continue to squeeze the oil inlet and oil outlet of the filter, achieving a seal on the oil inlet and oil outlet of the filter. On the other hand, the filter will also compress the spring 402 and continue to descend, descending below the liquid level of the water tank 1. Then, the air pump 2 is used to pressurize the connecting sleeve 901. The pressurized gas passes through the connecting sleeve 901 and enters the oil inlet or oil outlet of the filter. The filter is then observed to see if there is any leakage. After the detection is completed, the hydraulic cylinder 7 rises. When the hydraulic cylinder 7 rises, the filter rises above the liquid level under the action of the spring 402, the distance between the first lifting plate 5 and the second lifting plate 8 becomes larger, and then the filter can be removed.

Claims

1. A fuel filter sealing detection device, comprising a water tank (1) and an air pump (2), characterized in that: A fixed bracket (3) is fixedly installed above the water tank (1), a spring telescopic rod (4) is symmetrically installed on the fixed bracket (3), a first lifting plate (5) is fixedly installed at one end of the bottom of the spring telescopic rod (4), a first rubber joint (6) is fixedly installed on the first lifting plate (5), a hydraulic rod (7) is symmetrically installed at the middle of the fixed bracket (3), a second lifting plate (8) is fixedly installed at one end of the bottom of the hydraulic rod (7), the second lifting plate (8) is located above the first lifting plate (5), a connecting device (9) corresponding to the first rubber joint (6) is installed at the bottom of the second lifting plate (8), and the air pump (2) is connected to the side wall of the connecting device (9) through a hose.

2. A fuel filter sealing detection device according to claim 1, characterized in that: The connecting device (9) comprises a connecting sleeve (901) and a second rubber joint (902), and the air outlet end of the air pump (2) is connected to the connecting sleeve (901) via a hose.

3. A fuel filter sealing detection device according to claim 1, characterized in that: The spring telescopic rod (4) comprises a sleeve (401), a spring (402), a limit block (403) and a telescopic rod (404).

4. A fuel filter sealing detection device according to claim 1, characterized in that: The first lifting plate (5) is located above the water tank (1).

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