CN209727350U - A kind of plugging device for intercooler sealing propertytest - Google Patents

Abstract

The utility model relates to a plugging device used for testing the airtightness of an intercooler. The sealing device includes an air intake sealing mechanism and an air outlet sealing mechanism. The air intake sealing mechanism is clamped and positioned at the air inlet of the air chamber by the intake clamping positioning mechanism, and the intake drive device drives the intake plug to seal. Block the air inlet of the air chamber; the air outlet blocking mechanism is clamped and positioned at the air outlet of the air chamber through the air outlet clamping positioning mechanism, and the air outlet driving device drives the outlet plug to block the air inlet of the air chamber, with simple structure and reliable sealing Good; use the structure of the air inlet and outlet of the air chamber for positioning and clamping to realize the rapid positioning and clamping of the air inlet sealing mechanism and the air outlet sealing mechanism; both the air inlet drive device and the air outlet drive device adopt manual screw drive, easy to use. The ejector rod is connected to the plug through a retaining spring to prevent friction between the plug and the air chamber opening and effectively protect the air chamber; the retaining spring also has a certain floating amount, which can automatically align the center of the air chamber nozzle.

Description

A plugging device for testing the airtightness of an intercooler

technical field

The invention relates to a water testing tool, in particular to a plugging device for testing the airtightness of an intercooler.

Background technique

At present, before the intercooler leaves the factory, it is necessary to conduct an air tightness test on the intercooler to avoid leakage during the use of the intercooler after loading. Intercoolers have different structures according to different models. Some intercooler air chambers have complex structures. The traditional water inspection device cannot be quickly positioned and clamped, and the intercooler air chamber can be effectively blocked, which cannot meet the water inspection requirements. Especially for the intercooler with shallow arc surface inside the air chamber and large air inlet and outlet diameters, if the commonly used cam inward expansion sealing device is used, there will still be plugs protruding out, causing damage to the air chamber. risk to personnel.

Contents of the invention

In order to solve the above problems, the present invention provides a simple structure, fast positioning and clamping, safe and reliable plugging device for testing the airtightness of the intercooler.

The technical solution adopted in the present invention is: a plugging device for intercooler airtightness detection, which is characterized in that it includes an air intake blocking mechanism for blocking the air inlet of the air chamber and an air inlet for blocking the air chamber. The air outlet blocking mechanism of the air outlet, the air inlet blocking mechanism includes an air inlet clamping positioning mechanism snapped and positioned on the air chamber, an inlet plug for blocking the air inlet of the air chamber, and a driving inlet plug The air intake drive device for head movement, the air intake blocking mechanism is clamped and positioned at the air inlet of the air chamber by the intake clamping positioning mechanism;

The air intake driving device includes an air intake plug support frame and an intake screw ejector rod, the lower end of the air intake plug support frame is fixedly connected with the air intake clamping positioning mechanism, and the upper end of the air intake plug support frame An air intake nut is fixed, one end of the air intake screw mandrel passes through the air intake nut and is connected with the air intake plug through an air intake circlip, and the rod portion of the air intake screw mandrel is threadedly matched with the air intake nut, A screw nut pair is formed; the air intake screw mandrel rotates, and under the action of the screw nut pair, it drives the air intake plug to press down and block the air chamber air inlet;

The air intake plug is provided with a pipe joint communicating with an external air source, and the air intake plug is provided with an air intake channel for communicating with the air chamber and the pipe joint, and the external air source inflates the air chamber through the pipe joint .

Preferably, the intake clamping positioning mechanism includes an intake block, and a first intake positioning block, a second intake positioning block, a third intake positioning block and a fourth intake positioning block fixedly arranged on the intake block. The air intake positioning block, the opening grooves on the first air intake positioning block and the second air intake positioning block correspond to the first installation pins on both sides of the air chamber air inlet, and the first air intake positioning block The inner side walls of the block and the second air intake positioning block are positioned in conjunction with the bosses on both sides of the air chamber air inlet; the third air intake positioning block and the fourth air intake positioning block are aligned with the upper end arc Face matching positioning.

Further, the air intake plug includes an air intake plug positioning block and an air intake plug rubber, the upper end of the air intake plug positioning block is fixed with an air intake cover plate and an air intake backing plate, and the lower end is connected with the air intake plug The upper end of the head rubber is fixedly connected, and the lower end of the air intake plug rubber is tapered to cooperate with the air inlet of the air chamber; the air intake screw mandrel passes through the air intake cover plate and is connected with the air intake backing plate through the air intake circlip.

Furthermore, the air outlet blocking mechanism includes an air outlet clamping positioning mechanism snapped and positioned on the air chamber, an air outlet plug used to block the air outlet of the air chamber, and an air outlet driving device that drives the movement of the air outlet plug. The air outlet blocking mechanism is clamped and positioned at the air outlet of the air chamber through the air outlet clamping positioning mechanism; the air outlet driving device includes an air outlet plug support frame and an air outlet screw ejector rod, and the lower end of the air outlet plug support frame is snapped into the air outlet The positioning mechanism is fixedly connected, the upper end of the air outlet plug support frame is fixedly provided with an air outlet nut, one end of the air outlet screw mandrel passes through the air outlet nut and is connected with the air outlet plug through an air outlet circlip, the rod of the air outlet screw mandrel The part is matched with the thread of the air outlet nut to form a screw nut pair; the air outlet screw mandrel rotates, and under the action of the screw nut pair, the air outlet plug is pressed down to block the air outlet of the air chamber.

Furthermore, the air outlet clamping positioning mechanism includes an air outlet block, and a first air outlet positioning block, a second air outlet positioning block, a third air outlet positioning block, a fourth air outlet positioning block and a first air outlet positioning block fixedly arranged on the air outlet block. Five air outlet positioning blocks, the opening groove of the first air outlet positioning block is positioned and clamped with the rectangular boss on the side of the air outlet of the air chamber, and the opening groove of the second air outlet positioning block is connected with the second mounting on the side of the air chamber air outlet. The pins are correspondingly positioned and clamped, and the upper surfaces of the third air outlet positioning block, the fourth air outlet positioning block and the fifth air outlet positioning block cooperate with the lower surface of the boss at the air outlet of the air chamber for positioning.

Furthermore, the air outlet plug includes an air outlet plug positioning block and an air outlet plug rubber, the upper end of the air outlet plug positioning block is fixed with an air outlet cover plate and an air outlet backing plate, and the lower end is fixedly connected to the upper end of the air outlet plug rubber , the lower end of the air outlet plug rubber is tapered to match the air outlet of the air chamber; the air outlet screw mandrel passes through the air outlet cover plate and is connected to the air outlet backing plate through the air outlet circlip.

The beneficial effects obtained by the present invention are: the air chamber of the intercooler is blocked by the air intake sealing mechanism and the air outlet sealing mechanism, the structure is simple, and the sealing reliability is good; the air intake sealing mechanism is clamped and positioned by the intake clamping positioning mechanism At the air inlet of the air chamber, the air outlet blocking mechanism is clamped and positioned at the air outlet of the air chamber through the air outlet clamping positioning mechanism, and the air inlet and air outlet are used for positioning and clamping to realize the air inlet sealing mechanism Quick positioning and clamping of the air outlet blocking mechanism; both the air intake drive device and the air outlet drive device are manually driven by a screw, and the operation is simple.

The air inlet screw ejector rod is connected to the air inlet plug through a circlip, and the air outlet screw ejector rod is connected to the outlet air plug through a circlip. Rotate to prevent the friction between the plug and the gas chamber port, and effectively protect the gas chamber port; the circlip also has a certain amount of floating, which can automatically align the center of the gas chamber nozzle.

Description of drawings

Fig. 1-2 is the assembly diagram of the plugging device and intercooler used for intercooler airtightness detection of the present invention;

Fig. 3 is a structural schematic diagram of an air intake blocking mechanism;

Fig. 4 is a structural schematic diagram of the air inlet of the air chamber of the intercooler;

Fig. 5 is a schematic diagram of the air inlet blocking mechanism blocking the air inlet of the air chamber;

Figure 6 is a schematic diagram of the connection between the intake drive device and the intake plug;

Fig. 7 is a structural schematic diagram of an air outlet blocking mechanism;

Figure 8-9 is a schematic structural diagram of the air outlet of the air chamber of the intercooler;

Fig. 10 is a schematic diagram of an air outlet blocking mechanism blocking an air outlet of an air chamber;

Figure 11 is a schematic diagram of the connection between the air outlet driving device and the air outlet plug.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIGS. 1-2 , a plugging device for testing the airtightness of an intercooler according to the present invention is used to block the air chamber of the intercooler 1 to detect the airtightness of the intercooler 1 . The blocking device for intercooler leak detection includes an air intake blocking mechanism 2 and an air outlet blocking mechanism 3. When blocking, the air intake blocking mechanism 2 blocks the air inlet 11 of the air chamber of the intercooler 1. , the air outlet blocking mechanism 3 blocks the air outlet 12 of the intercooler 1 air chamber.

As shown in Figure 3, the air intake blocking mechanism 2 includes an air intake clamping positioning mechanism 22, an intake plug 21 and an intake drive device 23. Connected to the air inlet 11 of the air chamber of the intercooler 1, the intake driving device 23 is fixedly connected to the intake clamping positioning mechanism 22 through the intake plug support frame 231, and the intake drive device 23 is connected through the intake screw mandrel 232 Connected with the intake plug 21 , the intake drive device 23 drives the intake plug 21 to block the air inlet 11 of the air chamber of the intercooler 1 . On the air intake plug 21, there is a pipe joint 24 (using 1/4" pipe joint) connected with the external air source. The external air source is connected to the pipe joint 24 through the air pipe 4. As shown in FIG. 7, the air intake plug 21 is provided with an air intake passage 25 for communicating with the air chamber of the intercooler 1 and the pipe joint 24 .

In this embodiment, the intake locking positioning mechanism 22 includes an intake locking block 220 , a first intake positioning block 221 , a second intake positioning block 222 , a third intake positioning block 223 and a fourth intake positioning block 224 , the first intake positioning block 221 , the second intake positioning block 222 , the third intake positioning block 223 and the fourth intake positioning block 224 are fixed at corresponding positions of the intake clamping block 220 by M3×12 screws. As shown in Figure 4-5, the opening grooves on the first air intake positioning block 221 and the second air intake positioning block 222 correspond to the positioning cards on the first installation pins 111 on both sides of the air inlet 11 of the air chamber of the intercooler 1 Next, the inner side walls of the first air intake positioning block 221 and the second air intake positioning block 222 cooperate with the convex table surfaces 112 on both sides of the air inlet 11 of the intercooler 1, and the third air intake positioning block 223 and the fourth air intake positioning block 223 and the fourth air intake positioning block The air positioning block 224 cooperates with the upper arc surface 113 at the air inlet 11 of the air chamber of the intercooler 1, and is positioned through the first air intake positioning block 221, the second air intake positioning block 222, the third air intake positioning block 223 and the second air intake positioning block. The four air intake positioning blocks 224 cooperate with the corresponding structure at the air inlet 11 of the intercooler 1 air chamber to realize the positioning and clamping of the air intake blocking mechanism 2 as a whole at the air inlet 11 of the intercooler 1 air chamber. Accurate and reliable, and the clamping is extremely convenient.

In this embodiment, the intake driving device 23 includes an intake plug support frame 231 and an intake screw ejector rod 232, the lower end of the intake plug support frame 231 is fixedly connected with the intake block 220, and the intake plug support frame The upper end of 231 is fixedly provided with air intake nut 233, and one end of air intake screw mandrel 232 passes air intake nut 233 and is connected with air intake plug 21, and the other end is provided with hand-held air intake rod 234, and the air intake screw mandrel 232 The rod portion is threadedly matched with the intake nut 233 to form a screw nut pair; when the hand-held intake rod 234 is rotated, under the action of the screw nut pair, the intake screw ejector rod 232 drives the intake plug 21 to move, thereby sealing Gas chamber air inlet 11.

As shown in Figure 6, in this embodiment, the intake plug 21 includes an intake plug positioning block 211 and an intake plug rubber 212, and the upper end of the intake plug positioning block 211 is fixed with an intake cover plate by screws 213 and the air intake backing plate 214, the lower end of the air intake plug positioning block 211 is fixedly connected with the upper end of the air intake plug rubber 212, and the lower end of the air intake plug rubber 212 is tapered to cooperate with the air inlet 11 of the air chamber of the intercooler 1, The gas chamber air inlet 11 is sealed; the air intake backing plate 214 is provided with a circular groove, which is convenient for the air intake screw mandrel 232 to rotate in the groove when tightened, and a spring groove is designed at the lower end of the air intake helical mandrel 232 to enter The air screw mandrel 232 passes through the air inlet cover plate 213 and is connected with the air inlet backing plate 214 through the air inlet clamping spring 215 . Connected by the intake circlip 215, it can be ensured that when the intake screw push rod 232 rotates and presses down, the intake plug 21 does not rotate, so as to avoid the friction between the intake plug 21 and the air chamber inlet 11, wear the air chamber, and The air intake plug 21 can be made to have a certain floating amount along the central axis, and the air intake plug 21 can automatically find the center of the gas chamber air inlet 11.

As shown in FIG. 7 , the air outlet blocking mechanism 3 includes an air outlet locking positioning mechanism 32 , an air outlet plug 31 and an air outlet driving device 33 , and the air outlet locking and positioning mechanism 32 snaps the overall positioning of the air outlet blocking mechanism 3 on the intercooler 1 At the air outlet 12 of the air chamber, the air outlet driving device 33 is fixedly connected with the air outlet clamping positioning mechanism 32 through the air outlet plug support frame 331, the air outlet driving device 33 is connected with the air outlet plug 31 through the air outlet screw jack rod 332, and the air outlet driving device 33 drives The intake plug 31 presses down to block the air outlet 12 of the air chamber of the intercooler 1 .

In this embodiment, the air outlet clamping positioning mechanism 32 includes an air outlet clamping block 320, a first air outlet positioning block 321, a second air outlet positioning block 322, a third air outlet positioning block 323, a fourth air outlet positioning block 324 and a fifth air outlet positioning block 325, the first air outlet positioning block 321, the second air outlet positioning block 322, the third air outlet positioning block 323, the fourth air outlet positioning block 324 and the fifth air outlet positioning block 325 are fixed on the corresponding positions of the air outlet clamping block 320 by M3×12 screws. location. As shown in Figure 8-10, the opening slot of the first air outlet positioning block 321 is engaged with the rectangular boss 121 on the side of the air outlet 12 of the air chamber of the intercooler 1, and the opening slot of the second air outlet positioning block 322 is in contact with the intercooler. The second installation pin 122 on the side of the air outlet 12 of the air chamber of the air cooler 1 corresponds to the positioning and clamping, and the third air outlet positioning block 323, the fourth air outlet positioning block 324 and the fifth air outlet positioning block 325 are connected with the air outlet 12 of the intercooler 1 air chamber. The lower surface 123 of the boss at the center is positioned in coordination with the first air outlet positioning block 321, the second air outlet positioning block 322, the third air outlet positioning block 323, the fourth air outlet positioning block 324 and the fifth air outlet positioning block 325 and the intercooler 1 air chamber The corresponding structure at the air outlet 12 cooperates to realize the positioning and clamping of the air outlet blocking mechanism 3 as a whole at the air outlet 12 of the air chamber of the intercooler 1, the positioning is accurate and reliable, and the clamping is extremely convenient.

In this embodiment, the air outlet driving device 33 includes an air outlet plug support frame 331 and an air outlet screw jack rod 332. The lower end of the air outlet plug support frame 331 is fixedly connected with the air outlet block 320 through a support pad, and the outlet plug support frame 331 The upper end is fixed with an air outlet nut 333, and one end of the air outlet screw jack 332 passes through the air outlet nut 333 to connect with the air outlet plug 31, and the other end is provided with a hand-held air outlet rod 334, and the rod portion of the air outlet screw jack 332 is threadedly matched with the air outlet nut 333 , form the screw nut pair; rotate the hand-held air outlet rod 334, under the action of the screw nut pair, the air outlet screw mandrel 332 drives the air outlet plug 31 to move and press down to block the air chamber air outlet 12.

As shown in Figure 11, in this embodiment, the air outlet plug 31 includes an air outlet plug positioning block 311 and an air outlet plug rubber 312, the upper end of the air outlet plug positioning block 311 is fixedly provided with an air outlet cover plate 313 and an air outlet backing plate 314, The lower end of the air outlet plug positioning block 311 is fixedly connected with the upper end of the air outlet plug rubber 312, and the lower end of the air outlet plug rubber 312 is tapered to cooperate with the air outlet 12 of the air chamber of the intercooler 1 to block the air outlet 12 of the air chamber; the air outlet screw The ejector rod 332 passes through the air outlet cover plate 313 and is connected with the air outlet backing plate 314 through the air outlet clip spring 315, which can ensure that when the air outlet screw ejector rod 332 rotates and presses down, the outlet plug 31 does not rotate to avoid air outlet. The plug 31 rubs against the air inlet 12, wears the air chamber, and can make the outlet plug 31 have a certain amount of floating along the central axis, and the outlet plug 31 can automatically align the center of the outlet 12.

The air inlet blocking mechanism 2 and the air outlet blocking mechanism 3 are correctly installed on the air chamber of the intercooler 1, and after the air chamber opening is blocked by the corresponding plug, the external air source passes through the air pipe and the air inlet plug 21. The pipe joint 24 is connected to inflate the air chamber of the intercooler 1. After reaching a certain pressure, the intercooler 1 is placed in the water tank for air tightness testing.

The basic principles and main structural features of the present invention have been shown and described above. The present invention is not limited by the above examples, and without departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A blocking device for intercooler airtightness detection, characterized in that: it comprises an air intake blocking mechanism (2) for blocking the air chamber air inlet (11) and an air intake blocking mechanism (2) for blocking the air chamber The air outlet blocking mechanism (3) of the air outlet (12), the air inlet blocking mechanism (2) includes an air inlet clamping positioning mechanism (22) that is clamped and positioned on the air chamber, and is used to block the air inlet of the air chamber. The intake plug (21) of the air port (11) and the intake drive device (23) that drives the movement of the intake plug (21), the intake blocking mechanism (2) is connected to the positioning mechanism ( 22) snap-fit positioning at the air chamber air inlet (11); The air intake driving device (23) includes an air intake plug support frame (231) and an air intake screw ejector rod (232), and the lower end of the air intake plug support frame (231) is engaged with the air intake positioning mechanism ( 22) Fixed connection, the upper end of the air intake plug support frame (231) is fixedly provided with an air intake nut (233), and one end of the air intake screw mandrel (232) passes through the intake nut (233) and the air intake nut (233). The air plug (21) is connected by an air intake circlip (215), and the rod portion of the air intake screw mandrel (232) is threadedly matched with the air intake nut (233) to form a screw nut pair; the air intake screw The push rod (232) rotates, and under the action of the screw nut pair, it drives the air inlet plug (21) to press down and block the air chamber air inlet (11); The air intake plug (21) is provided with a pipe joint (24) communicated with an external air source, and the air intake plug (21) is provided with an air intake port for communicating with the air chamber and the pipe joint (24). passage (25), the external air source inflates the air chamber through the pipe joint (24). 2. The plugging device for intercooler airtightness detection according to claim 1, characterized in that: the air intake clamping positioning mechanism (22) includes an intake block (220), and is fixedly arranged on The first air intake positioning block (221), the second air intake positioning block (222), the third air intake positioning block (223) and the fourth air intake positioning block (224) on the air intake clamping block (220), so The opening slots on the first air intake positioning block (221) and the second air intake positioning block (222) are in corresponding positioning engagement with the first mounting pins (111) on both sides of the air chamber air inlet (11), so that The inner sidewalls of the first air intake positioning block (221) and the second air intake positioning block (222) are positioned in cooperation with the boss surfaces (112) on both sides of the air chamber air inlet (11); the third air intake positioning The block (223) and the fourth air intake positioning block (224) are positioned in cooperation with the upper arc surface (113) at the air chamber air inlet (11). 3. The plugging device for intercooler sealing test according to claim 1 or 2, characterized in that: the intake plug (21) includes an intake plug positioning block (211) and an intake plug Plug rubber (212), the upper end of the air intake plug positioning block (211) is fixed with an air intake cover plate (213) and an air intake backing plate (214), and the lower end is fixed to the upper end of the air intake plug rubber (212) connected, the lower end of the air intake plug rubber (212) is tapered to match the air chamber air inlet (11); the air intake screw mandrel (232) passes through the air intake cover plate (213) Jump ring (215) is connected with air intake backing plate (214). 4. The blocking device for intercooler airtightness detection according to claim 3, characterized in that: the air outlet blocking mechanism (3) includes an air outlet clamping positioning mechanism ( 32), the air outlet plug (31) used to block the air outlet (12) of the air chamber and the air outlet driving device (33) that drives the movement of the air outlet plug (31), the air outlet blocking mechanism (3) passes the air outlet card The positioning mechanism (32) is clamped and positioned at the gas chamber air outlet (12); The air outlet driving device (33) includes an air outlet plug support frame (331) and an air outlet screw ejector rod (332), and the lower end of the air outlet plug support frame (331) is fixedly connected with the air outlet clamping positioning mechanism (32), The upper end of the air outlet plug support frame (331) is fixed with an air outlet nut (333), and one end of the air outlet screw mandrel (332) passes through the air outlet nut (333) and the air outlet plug (31) through the air outlet circlip (315) is connected, and the rod portion of the air outlet screw mandrel (332) is threadedly matched with the air outlet nut (333) to form a screw nut pair; Down, the air outlet plug (31) presses down to block the air chamber air outlet (12). 5. The plugging device for intercooler airtightness testing according to claim 4, characterized in that: the air outlet locking positioning mechanism (32) includes an air outlet block (320), and is fixedly arranged on the air outlet card The first air outlet positioning block (321), the second air outlet positioning block (322), the third air outlet positioning block (323), the fourth air outlet positioning block (324) and the fifth air outlet positioning block (325) on the block (320) , the opening groove of the first air outlet positioning block (321) is positioned and clamped with the side rectangular boss (121) at the air outlet (12) of the air chamber, and the opening groove of the second air outlet positioning block (322) is connected with the air chamber The second mounting pin (122) on the side of the air outlet (12) is engaged in corresponding positioning, and the upper surfaces of the third air outlet positioning block (323), the fourth air outlet positioning block (324) and the fifth air outlet positioning block (325) Cooperate with the lower surface (123) of the boss at the gas chamber air outlet (12) for positioning. 6. The plugging device for intercooler sealing test according to claim 4, characterized in that: the air outlet plug (31) includes an air outlet plug positioning block (311) and an air outlet plug rubber (312 ), the upper end of the air outlet plug positioning block (311) is fixedly provided with an air outlet cover plate (313) and an air outlet backing plate (314), and the lower end is fixedly connected with the upper end of the air outlet plug rubber (312). The lower end of (312) is tapered to match the air outlet of the air chamber (12); the air outlet screw mandrel (332) passes through the air outlet cover plate (313) and is connected with the air outlet backing plate (314) through the air outlet circlip (315) .