Intake manifold leakage test device

Abstract

The utility model discloses an intake manifold leakage test device, which comprises a detection pool, a fixed plate is fixedly arranged on the lower inner wall of the detection pool, a fixed cavity is formed in the fixed plate, a movable plate is slidably connected between the inner walls of the fixed cavity, the top end of the movable plate is fixedly connected with a fixed frame, and the fixed frame is fixedly connected with a movable plate. The fixing frame penetrates through the upper inner wall of the fixing cavity and extends out of the outer side of the fixing plate, fixing springs are fixedly connected to the bottom end of the moving plate, the end, away from the moving plate, of each fixing spring is fixedly connected to the lower inner wall of the fixing cavity, and an air inflation device is fixedly arranged at the top end of the fixing plate. And a mounting structure is arranged on the inflating device. According to the utility model, through structures such as the fixing spring, the device can be used for installing and fixing different intake manifolds, so that the application range of the device is enlarged, meanwhile, liquid is positioned below the sealing structure, errors caused by air leakage of the sealing structure are reduced, and the detection is more accurate.

Description

Technical Field

[0001] The utility model relates to the field of air intake manifold leak detection, in particular to an air intake manifold leak detection device. Background Art

[0002] The intake manifold refers to the intake pipe from the carburetor or throttle body to the cylinder head intake passage. It distributes the air and fuel mixture from the carburetor or throttle body to each cylinder. Therefore, the sealing ability of the intake manifold is very important. During the production process of the intake manifold, it needs to be leak tested.

[0003] The existing intake manifold leak test device is troublesome to use and difficult to install and fix on different intake manifolds, which makes the application range of the device narrow and is not conducive to the use of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: the use of the device is cumbersome, it is difficult to install and fix different intake manifolds, the application range of the device is narrow, which is not conducive to the use of the device, and an intake manifold leak test device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An intake manifold leak test device comprises a detection pool, a fixed plate is fixedly arranged on the lower inner wall of the detection pool, a fixed cavity is opened inside the fixed plate, a movable plate is slidably connected between the inner walls of the fixed cavity, a fixed frame is fixedly connected to the top end of the movable plate, the fixed frame passes through the upper inner wall of the fixed cavity and extends to the outside of the fixed plate, a fixed spring is fixedly connected to the bottom end of the movable plate, one end of each of the fixed springs away from the movable plate is fixedly connected to the lower inner wall of the fixed cavity, an inflation device is fixedly arranged on the top end of the fixed plate, a mounting structure is arranged on the inflation device, and a sealing structure is arranged on the fixed frame.

[0007] Preferably, the sealing structure includes a connecting plate fixedly connected to the upper end surface of the fixing frame, a sealing plate is arranged inside the connecting plate, a connecting rod is fixedly connected to the side wall of each sealing plate, each connecting rod passes through the inner side wall of the corresponding connecting plate and extends to the outside of the connecting plate, each connecting rod is fixedly connected to a connecting block at one end located on the outside of the connecting plate, a connecting spring is fixedly connected to the side wall of each connecting block, each connecting spring is respectively sleeved on the outside of the corresponding connecting rod, and each connecting spring is fixedly connected to the side wall of the connecting plate at one end away from the corresponding connecting block.

[0008] Preferably, the mounting structure includes a mounting plate arranged above the inflation device, and the output end of the inflation device is fixedly connected to a plurality of connecting pipes, each of the connecting pipes passes through the inner wall of the mounting plate and is communicated with the interior of the mounting plate, and a plurality of mounting interfaces are opened on the upper inner wall of the mounting plate, and a fixing flange is provided on the outer side of each mounting interface.

[0009] Preferably, sealing gaskets are provided at the connection between the connecting pipe and the mounting plate and at the connection between the mounting plate and the fixing flange.

[0010] Preferably, a fixed pipe is fixedly connected to one side wall of the detection pool, the fixed pipe is arranged at the bottom end of the side wall of the detection pool, and a water pump is fixedly arranged at one end of the fixed pipe away from the detection pool.

[0011] Preferably, the detection pool is made of transparent material.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the device can be installed and fixed on different intake manifolds through structures such as fixed springs, thereby increasing the application range of the device, while at the same time allowing the liquid to be located below the sealing structure, reducing errors caused by leakage in the sealing structure and making detection more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partially cutaway three-dimensional structural schematic diagram of an intake manifold leak test device proposed by the utility model;

[0014] Figure 2 It is a side view stereoscopic cross-sectional structural schematic diagram of an intake manifold leak test device proposed by the utility model;

[0015] Figure 3 The utility model is a structural schematic diagram of an intake manifold leak testing device.

[0016] In the figure: 1 detection pool, 2 fixed plate, 3 fixed cavity, 4 movable plate, 5 fixed spring, 6 fixed frame, 7 inflation device, 8 connecting pipe, 9 mounting plate, 10 mounting interface, 11 fixed flange, 12 connecting plate, 13 sealing plate, 14 connecting rod, 15 connecting block, 16 connecting spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-Figure 3, an intake manifold leak test device, including a detection pool 1, a fixed plate 2 is fixedly arranged on the lower inner wall of the detection pool 1, a fixed cavity 3 is opened inside the fixed plate 2, a movable plate 4 is slidably connected between the inner walls of the fixed cavity 3, a fixed frame 6 is fixedly connected to the top of the movable plate 4, the fixed frame 6 penetrates the upper inner wall of the fixed cavity 3 and extends to the outer side of the fixed plate 2, a fixed spring 5 is fixedly connected to the bottom end of the movable plate 4, and one end of each fixed spring 5 away from the movable plate 4 is fixedly connected to the lower inner wall of the fixed cavity 3, and an inflating device 7 is fixedly arranged on the top of the fixed plate 2. The inflating device 7 is an existing device, and a mounting structure is arranged on the inflating device 7. A sealing structure is arranged on the fixed frame 6. The fixing frame 6 is pulled upward to move the sealing structure upward, and the fixed spring 5 is stretched. The intake manifold is set between the sealing structure and the mounting structure, and the intake manifold is inflated to observe whether bubbles appear in the detection pool 1, so as to judge the sealing ability of the intake manifold;

[0019] The sealing structure includes a connecting plate 12 fixedly connected to the upper end surface of the fixing frame 6, a sealing plate 13 is arranged inside the connecting plate 12, and a connecting rod 14 is fixedly connected to the side wall of each sealing plate 13, each connecting rod 14 respectively penetrates the inner side wall of the corresponding connecting plate 12 and extends to the outer side of the connecting plate 12, and each connecting rod 14 is fixedly connected to a connecting block 15 at one end located on the outer side of the connecting plate 12, and a connecting spring 16 is fixedly connected to the side wall of each connecting block 15, each connecting spring 16 is respectively sleeved on the outer side of the corresponding connecting rod 14, and each connecting spring 16 is fixedly connected to the side wall of the connecting plate 12 at one end away from the corresponding connecting block 15, and the connecting block 15 is pulled to move the connecting rod 14 and the sealing plate 13, so that the connecting spring 16 is contracted, and one end of the intake manifold is extended into the connecting plate 12, and under the action of the elastic force of the connecting spring 16, the sealing plate 13 fixes and clamps this end of the intake manifold, and blocks the pipe opening of the intake manifold to seal it;

[0020] The mounting structure includes a mounting plate 9 arranged above the inflator 7, and a plurality of connecting pipes 8 are fixedly connected to the output end of the inflator 7, and each connecting pipe 8 penetrates the inner wall of the mounting plate 9 and is communicated with the inside of the mounting plate 9. A plurality of mounting interfaces 10 are provided on the upper inner wall of the mounting plate 9, and a fixing flange 11 is provided on the outer side of each mounting interface 10, and one end of the intake manifold is fixedly connected to the mounting interface 10 through the fixing flange 11. When the inflator 7 is inflated, the gas enters the mounting plate 9 from the connecting pipe 8, and then passes through the mounting interface 10 into the intake manifold; sealing gaskets are provided at the connection between the connecting pipe 8 and the mounting plate 9 and at the connection between the mounting plate 9 and the fixing flange 11 to prevent gas leakage;

[0021] A fixed tube is fixedly connected to one side wall of the detection pool 1, and the fixed tube is arranged at the bottom end of the side wall of the detection pool 1. A water pump is fixedly arranged at the end of the fixed tube away from the detection pool 1, and colored liquid is passed into the detection pool 1 through the water pump; the detection pool 1 is made of transparent material to facilitate observation of the situation in the detection pool 1.

[0022] In the utility model, when the device is in use, first pull the fixing frame 6 upward to move the sealing structure upward, stretch the fixing spring 5, and then pull the connecting block 15 to move the connecting rod 14 and the sealing plate 13, so that the connecting spring 16 contracts, and one end of the intake manifold is extended into the connecting plate 12. Under the action of the elastic force of the connecting spring 16, the sealing plate 13 fixes and clamps this end of the intake manifold, and blocks the pipe opening of the intake manifold to seal it. At the same time, one end of the intake manifold is fixedly connected to the mounting interface 10 through the fixing flange 11, and then the colored liquid is passed into the detection tank 1 through the water pump. The height of the liquid reaches the bottom of the sealing plate 13 to avoid the influence of gas leakage at the sealing plate 13 on the detection. Finally, the inflation device 7 is inflated, and the gas enters the mounting plate 9 from the connecting pipe 8, and then passes through the mounting interface 10 into the intake manifold. It is observed whether bubbles appear in the detection tank 1, so as to judge the sealing ability of the intake manifold.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intake manifold leak test device, comprising a detection cell (1), characterized in that: A fixed plate (2) is fixedly arranged on the lower inner wall of the detection pool (1), a fixed cavity (3) is opened inside the fixed plate (2), a movable plate (4) is slidably connected between the inner walls of the fixed cavity (3), a fixed frame (6) is fixedly connected to the top of the movable plate (4), the fixed frame (6) penetrates the upper inner wall of the fixed cavity (3) and extends to the outside of the fixed plate (2), a fixed spring (5) is fixedly connected to the bottom end of the movable plate (4), one end of each of the fixed springs (5) away from the movable plate (4) is fixedly connected to the lower inner wall of the fixed cavity (3), an inflation device (7) is fixedly arranged on the top of the fixed plate (2), a mounting structure is arranged on the inflation device (7), and a sealing structure is arranged on the fixed frame (6).

2. An intake manifold leak test device according to claim 1, characterized in that: The sealing structure comprises a connecting plate (12) fixedly connected to the upper end surface of the fixing frame (6), a sealing plate (13) being arranged inside the connecting plate (12), a connecting rod (14) being fixedly connected to the side wall of each sealing plate (13), each connecting rod (14) respectively penetrating the inner side wall of the corresponding connecting plate (12) and extending to the outside of the connecting plate (12), one end of each connecting rod (14) located outside the connecting plate (12) being fixedly connected to a connecting block (15), a side wall of each connecting block (15) being fixedly connected to a connecting spring (16), each connecting spring (16) being respectively sleeved on the outside of the corresponding connecting rod (14), and one end of each connecting spring (16) away from the corresponding connecting block (15) being fixedly connected to the side wall of the connecting plate (12).

3. The intake manifold leak test device according to claim 1, characterized in that: The mounting structure comprises a mounting plate (9) arranged above the inflation device (7); the output end of the inflation device (7) is fixedly connected to a plurality of connecting pipes (8); each of the connecting pipes (8) penetrates the inner wall of the mounting plate (9) and is arranged in communication with the interior of the mounting plate (9); a plurality of mounting interfaces (10) are provided on the upper inner wall of the mounting plate (9); and a fixing flange (11) is provided on the outer side of each of the mounting interfaces (10).

4. An intake manifold leak test device according to claim 3, characterized in that: Sealing gaskets are provided at the connection between the connecting pipe (8) and the mounting plate (9) and at the connection between the mounting plate (9) and the fixing flange (11).

5. The intake manifold leak test device according to claim 1, characterized in that: A fixed pipe is fixedly connected to one side wall of the detection pool (1), the fixed pipe is arranged at the bottom end of the side wall of the detection pool (1), and a water pump is fixedly arranged at one end of the fixed pipe away from the detection pool (1).

6. The intake manifold leak test device according to claim 1, characterized in that: The detection pool (1) is made of transparent material.

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