Air tightness detection device for double-station fuel filter joint

Abstract

The utility model relates to the technical field of air tightness detection equipment, in particular to an air tightness detection device for a double-station fuel filter joint, which comprises a water tank and two groups of sealing detection assemblies, two lifting mechanisms are arranged in the water tank and are in linkage arrangement, and the sealing detection assemblies are arranged in the water tank. When one lifting mechanism is in a rising state, the other lifting mechanism is in a falling state, and each set of sealing detection assembly corresponds to one lifting mechanism. According to the device, when one lifting mechanism drives the sealing detection assembly on the lifting mechanism to be immersed in water to observe whether air leakage occurs, the other lifting mechanism can drive the sealing detection assembly on the lifting mechanism to be exposed out of the water surface, the detected connector can be taken down from the sealing detection assembly exposed out of the water surface, and a new connector is put into the sealing detection assembly for subsequent detection; in this way, continuous operation can be achieved through one device, and compared with two independent devices, the cost can be reduced by about 20%-30%.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection equipment technical field especially relates to a double station fuel filter joint's airtightness detection device. BACKGROUND

[0002] The fuel filter joint of the engine is a connecting piece, which connects the fuel filter and the external oil circuit. The fuel filter joint is a hollow cylinder with two open ends. After the fuel filter joint is processed, it needs to be tested for airtightness. The airtightness of the fuel filter joint directly affects the quality of the fuel filter product.

[0003] In the prior art, the airtightness of the fuel filter joint is detected by sealing and clamping both ends of the fuel filter joint, then immersing the fuel filter joint in a water tank, observing whether there are bubbles at the fuel filter joint, and then judging the airtightness of the fuel filter joint. This detection method is low in efficiency and can only detect one fuel filter joint at a time.

[0004] The applicant previously disclosed a kind of airtightness detection equipment suitable for fuel filter joint, publication (announcement) number: CN209639911U, although the device can detect the sealing of multiple joints at a time, but it cannot work continuously, that is, when the sealing detection assembly is above the water surface, only the joint can be taken and placed, and when the sealing detection assembly is below the water surface, only the airtightness can be observed. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem that the airtightness detection equipment of the existing technology cannot work continuously. Although the device can detect the sealing of multiple joints at a time, it cannot work continuously. Therefore, a kind of double station fuel filter joint's airtightness detection device is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A kind of double station fuel filter joint's airtightness detection device, including water pool, sealing detection assembly, the sealing detection assembly is two groups, two lifting mechanisms are equipped in the water pool, two the lifting mechanisms are linked and set, one the lifting mechanism is in the state of rising, and another the lifting mechanism is in the state of falling, each group the sealing detection assembly corresponds one the lifting mechanism.

[0008] The lifting mechanism comprises a vertically arranged second sealing cylinder, a second piston arranged in the second sealing cylinder, and a lifting rod penetrating through the second sealing cylinder and connected with the second piston, a support platform is arranged at the top end of the lifting rod, the sealing detection assembly is arranged on the support platform, a sealed third air cavity is arranged in the second sealing cylinder above the second piston, the second sealing cylinder is provided with a third through hole in communication with the third air cavity, and the third through hole of one lifting mechanism is in the air intake state while the third through hole of the other lifting mechanism is in the air exhaust state.

[0009] The detection device comprises a pneumatic mechanism, the pneumatic mechanism is provided with a first through hole and a second through hole, the first through hole and the second through hole are provided with air blowing states and air suction states, one of the first through hole and the second through hole is in the air blowing state, and the other is in the air suction state, the first through hole is connected with the third through hole of one lifting mechanism through a first communication pipe, and the second through hole is connected with the third through hole of the other lifting mechanism through a second communication pipe.

[0010] The pneumatic mechanism comprises a first sealing cylinder and a power telescopic cylinder, the first sealing cylinder is internally provided with a first piston, the first sealing cylinder is provided with a first air cavity and a second air cavity on the two sides of the first piston, the second through hole is arranged in the first air cavity of the first sealing cylinder, the first through hole is arranged in the second air cavity of the first sealing cylinder, and the piston rod of the power telescopic cylinder penetrates through the first sealing cylinder and is connected with the first piston.

[0011] The water tank has two independent water troughs, and each group of sealing detection assemblies corresponds to one water trough.

[0012] The detection device has two stations, and the two stations are oppositely arranged.

[0013] The air tightness detection device for the double-station fuel filter joint has the beneficial effects that: when the device is used, each lifting mechanism controls the lifting action of a group of sealing detection assemblies, and since the two lifting mechanisms are connected, when one lifting mechanism drives the sealing detection assembly thereon to immerse in water to observe whether air leakage occurs, the other lifting mechanism can drive the sealing detection assembly thereon to be exposed to the water surface, and the sealing detection assembly exposed to the water surface can be taken down for detection, and a new joint can be put in for subsequent detection, so that one equipment can realize continuous operation, and the cost can be reduced by about 20%-30% compared with two separate equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a first working state structure schematic view of the utility model;

[0015] Figure 2 It is a second working state structure schematic view of the utility model.

[0016] In the figure: power telescopic cylinder 1, piston rod 2, first air cavity 3, first through hole 4, first piston 5, second air cavity 6, first sealing cylinder 7, second through hole 8, sealing detection assembly 9, support platform 10, water pool 11, lifting rod 12, third through hole 13, third air cavity 14, second sealing cylinder 15, second piston 17, first communication pipe 18, second communication pipe 19, lifting mechanism 20. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0018] Referring to Figures 1-2 A kind of air-tightness detection device of double-station fuel filter joint, including water pool 11, sealing detection assembly 9, sealing detection assembly 9 is two groups, two lifting mechanisms 20 are provided in water pool 11, two lifting mechanisms 20 are linked to set, one lifting mechanism 20 is in the state of rising, another lifting mechanism 20 is in the state of falling, and each group of sealing detection assembly 9 corresponds to one lifting mechanism 20.

[0019] When the device is used, each lifting mechanism 20 controls the lifting action of one group of sealing detection assembly 9, since two lifting mechanisms 20 are linked to set, when one lifting mechanism 20 drives the sealing detection assembly 9 thereon to immerse in water to observe whether it leaks, another lifting mechanism 20 can drive the sealing detection assembly 9 thereon to emerge from water surface, and the sealing detection assembly 9 emerging from water surface can be removed after detection Joint, new joint is placed for subsequent detection, so that one equipment can realize continuous operation, and compared with two separate equipments, cost can be reduced by about 20%-30%.

[0020] As an implementation mode, water pool 11 has two independent water tanks, and each group of sealing detection assembly 9 corresponds to one water tank. The detection device has two stations, and the two stations are oppositely arranged.

[0021] Two opposite stations are arranged, i.e. one station is arranged on each of left and right sides of the equipment, one worker corresponds to each station, and two workers can operate one equipment.

[0022] As an implementation, the lifting mechanism 20 includes a vertically arranged second sealing cylinder 15, a second piston 17 arranged in the second sealing cylinder 15, a lifting rod 12 penetrating through the second sealing cylinder 15 and connected with the second piston 17, a support platform 10 mounted at the top end of the lifting rod 12, and a sealing detection assembly 9 mounted on the support platform 10. The second sealing cylinder 15 is provided with a third through hole 13, and the second sealing cylinder 15 is provided with a third air cavity 14 above the second piston 17 in sealing communication with the third through hole 13. The third through hole 13 of one lifting mechanism 20 is in the air intake state, and the third through hole 13 of the other lifting mechanism 20 is in the air exhaust state.

[0023] Reference Figure 1 , Figure 2 The device only needs to switch the air intake and exhaust states of the third through holes 13 of the two lifting mechanisms 20 to realize the reverse lifting movement of the two lifting mechanisms 20, thereby reducing the operation difficulty.

[0024] Further, the detection device includes a pneumatic mechanism having a first through hole 4 and a second through hole 8. The first through hole 4 and the second through hole 8 each have a blowing state and a suction state, and one of the first through hole 4 and the second through hole 8 is in the blowing state, and the other is in the suction state. The first through hole 4 is connected with the third through hole 13 of one lifting mechanism 20 through a first communication pipe 18, and the second through hole 8 is connected with the third through hole 13 of the other lifting mechanism 20 through a second communication pipe 19. The pneumatic mechanism includes a first sealing cylinder 7 and a power telescopic cylinder 1. The first sealing cylinder 7 has a first piston 5 inside. The first sealing cylinder 7 is provided with a first air cavity 3 and a second air cavity 6 on both sides of the first piston 5. The second through hole 8 is arranged in the first air cavity 3 of the first sealing cylinder 7, and the first through hole 4 is arranged in the second air cavity 6 of the first sealing cylinder 7. The piston rod of the power telescopic cylinder 1 penetrates through the first sealing cylinder 7 and is connected with the first piston 5.

[0025] Reference Figure 1 When the power telescopic cylinder 1 pulls the first piston 5 upward to move upward, the gas in the first air cavity 3 enters the third air cavity 14 of the right lifting mechanism 20 through the second through hole 8 and the second communication pipe 19. The second piston 17 of the right lifting mechanism 20 moves downward, so that the sealing detection assembly 9 on the right side is immersed in water. At the same time, the second air cavity 6 becomes larger, and the first through hole 4 is in the suction state, so that the second piston 17 of the left lifting mechanism 20 moves upward. The left sealing detection assembly 9 is driven by the left second piston 17 to move upward, so as to achieve the purpose that the left sealing detection assembly 9 moves upward away from the liquid, and the right sealing detection assembly 9 moves downward to be immersed in the liquid. Conversely, when the power telescopic cylinder 1 pushes the first piston 5 to move downward, the left sealing detection assembly 9 moves downward to be immersed in the liquid, and the right sealing detection assembly 9 moves upward to be away from the liquid. The linkage structure is simple, and the manufacturing cost is low.

[0026] As one implementation method, the power telescopic cylinder 1 can be an electro-hydraulic actuator. The electro-hydraulic actuator is equipped with two sets of switches, each set of switches corresponding to one forward rotation button and one reverse rotation button, that is, a total of two forward rotation buttons and two reverse rotation buttons are provided. Only when both forward rotation buttons or both reverse rotation buttons are pressed at the same time can the electro-hydraulic actuator move forward downward or reverse upward. In this way, the electro-hydraulic actuator will only be activated when two workers press the forward rotation button at the same time or press the reverse rotation button at the same time, thereby improving the safety of equipment use.

[0027] The function of the sealing detection component 9 of this device is to seal and clamp the filter joint and to introduce airflow to determine whether there is a leak. The specific structure can adopt the relevant structure in the prior art. For example, those skilled in the art can refer to the relevant content of CN209639911U, which was disclosed earlier by the applicant.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting air tightness of a double position fuel filter joint, comprising a water tank (11), a sealing detection assembly (9), characterized in that, The sealing detection assembly (9) is two groups, the pool (11) is internally provided with two lifting mechanisms (20), two lifting mechanisms (20) are connected and arranged, one lifting mechanism (20) is in the state of lifting, and the other lifting mechanism (20) is in the state of falling, and each sealing detection assembly (9) corresponds to one lifting mechanism (20).

2. The device for testing the air tightness of a double position fuel filter joint according to claim 1, characterized in that, The lifting mechanism (20) comprises a vertically arranged second sealing cylinder (15), a second piston (17) arranged in the second sealing cylinder (15), a lifting rod (12) penetrating through the second sealing cylinder (15) and connected with the second piston (17), a supporting platform (10) is installed at the top end of the lifting rod (12), the sealing detection assembly (9) is installed on the supporting platform (10), the second sealing cylinder (15) is provided with a third through hole (13), the second sealing cylinder (15) has a third air cavity (14) in sealing communication with the third through hole (13) on the upper side of the second piston (17), and the third through hole (13) of one lifting mechanism (20) is in the state of air intake, and the third through hole (13) of the other lifting mechanism (20) is in the state of air exhaust.

3. The dual station fuel filter adapter leak detection apparatus of claim 2, wherein, The detection device comprises a pneumatic mechanism, the pneumatic mechanism has a first through hole (4) and a second through hole (8), the first through hole (4) and the second through hole (8) both have a blowing state and a suction state, and one of the first through hole (4) and the second through hole (8) is in the blowing state, and the other is in the suction state, the first through hole (4) is connected with the third through hole (13) of one lifting mechanism (20) through a first communication pipe (18), and the second through hole (8) is connected with the third through hole (13) of the other lifting mechanism (20) through a second communication pipe (19).

4. The device for testing the air tightness of a double position fuel filter joint according to claim 3, characterized in that, The pneumatic mechanism comprises a first sealing cylinder (7) and a power telescopic cylinder (1), the first sealing cylinder (7) has a first piston (5) inside, the first sealing cylinder (7) has a first air cavity (3) and a second air cavity (6) on both sides of the first piston (5), the second through hole (8) is arranged on the first air cavity (3) of the first sealing cylinder (7), the first through hole (4) is arranged on the second air cavity (6) of the first sealing cylinder (7), and the piston rod of the power telescopic cylinder (1) penetrates through the first sealing cylinder (7) and is connected with the first piston (5).

5. The device for testing the air tightness of a double position fuel filter joint according to any one of claims 1 to 4, characterized in that, The pool (11) has two independent water tanks, and each sealing detection assembly (9) corresponds to one water tank.

6. A dual station fuel filter adapter joint leak detection apparatus as defined in claim 5, wherein, The detection device has two stations, and the two stations are oppositely arranged.

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