Turbocharger pressure detection device

Abstract

The invention relates to the technical field of pressure detection, and discloses a turbocharger pressure detection device, which is characterized in that an air inlet box is arranged in a box body, an air pressure meter is arranged on the air inlet box, and a connecting assembly is used for being connected with an air outlet pipe on a turbocharger; after the locking nut moves rightwards, a first spring on the annular connecting seat drives the annular connecting seat to move rightwards, at the moment, an abutting piece on the annular connecting seat drives a buckling piece to rotate and then buckles a flange to the left end of the butt joint annular seat, meanwhile, an inflation assembly inflates gas into the annular air bag, and the annular air bag is sealed on the inner wall of the tail end of the air outlet pipe after being expanded. According to the invention, rapid connection and disassembly of the air outlet pipe on the turbocharger and the corrugated pipe on the air inlet box can be rapidly realized through the connecting assembly, and the detection efficiency of pressure detection of the turbocharger can be improved; after the connecting assembly is installed, the joint of the connecting assembly and the air outlet pipe does not leak air, so that the detection accuracy is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of pressure detection, and in particular to a turbocharger pressure detection device. Background Art

[0002] A turbocharger is actually an air compressor that increases the intake volume by compressing air. The outlet of the turbocharger (i.e., the exhaust port of the compressor) is connected to the intake manifold of the car engine. The turbocharger is mainly composed of a turbine and a compressor. When the engine is running, the high-temperature and high-pressure exhaust gas flow is discharged from the exhaust manifold of the engine, driving the turbine in the turbine to rotate at high speed. The turbine drives the compressor to rotate together through the turbocharger shaft, and the compressor compresses the inhaled air. The compressed air is sent into the intake manifold of the engine through the exhaust port of the compressor (i.e., the outlet of the turbocharger), thereby increasing the intake volume and intake pressure.

[0003] When the turbocharger pressure is insufficient, it cannot compress enough air into the engine, resulting in reduced combustion efficiency. The vehicle's power output will be significantly weakened, which is manifested as slow acceleration of the vehicle and a longer time to reach the expected speed. The turbo pressure test can effectively evaluate the performance and quality of the turbocharger. By detecting the pressure difference before and after the turbine, it can be determined whether the rotation speed and efficiency of the turbocharger are normal, and whether there are problems such as air leakage and circumference.

[0004] During the detection process, it is necessary to disassemble the outlet pipe of the turbocharger from the intake manifold of the automobile engine, and then connect the outlet pipe to the detection device, so that when the turbocharger is working, the air is compressed through the outlet pipe and enters the detection device, so that the detection device detects the air pressure. However, the connection and disassembly of the outlet pipe and the detection device are cumbersome, which is not conducive to improving the detection efficiency of the turbocharger pressure detection; and the outlet pipe and the detection device are not firmly connected and are easy to fall off, or the connection is not well sealed, which will cause pressure leakage and cannot ensure the accuracy of the detection. To this end, we have introduced a turbocharger pressure detection device. Summary of the invention

[0005] The object of the present invention is to provide a turbocharger pressure detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A turbocharger pressure detection device comprises a box body, an air intake box is arranged inside the box body, a pressure gauge is arranged on the air intake box, a connecting assembly is integrally connected to the air intake box side by a bellows, and the connecting assembly is used to connect to an air outlet pipe on the turbocharger;

[0008] The end of the air outlet pipe is provided with a flange, and the connecting assembly includes a plug-in sleeve integrally connected to the end of the bellows, a docking ring seat provided on the left side of the plug-in sleeve, an annular connecting seat sleeved on the right side of the plug-in sleeve, and a locking nut threaded on the right side of the plug-in sleeve;

[0009] The docking ring seat is movably connected with snap fasteners at equal intervals, the right end of the docking ring seat is provided with inflatable components at equal intervals, the outer side of the left end of the plug-in tube is provided with an annular air bag, and the left end of the plug-in tube is inserted into the end of the air outlet pipe;

[0010] After the locking nut moves to the right, the first spring on the annular connecting seat drives the annular connecting seat to move to the right. At this time, the abutment member on the annular connecting seat drives the snap member to rotate and snap the flange onto the left end of the docking ring seat. At the same time, the inflation assembly fills gas into the annular airbag, so that the annular airbag is sealed on the inner wall of the end of the outlet pipe after expansion.

[0011] Preferably, the outer side of the plug-in tube is further provided with an abutting ring seat located on the right side of the docking ring seat, the first spring is sleeved on the outer side of the plug-in tube, and the two ends of the first spring are fixed between the abutting ring seat and the annular connecting seat.

[0012] Preferably, a vertical frame is provided on the abutting ring seat, and a horizontal plate is provided on the top of the vertical frame;

[0013] The docking ring seat is provided with a slot, and the fastener includes a connecting tube movably connected in the slot by a pin shaft, a socket fixed on the connecting tube, a supporting plate connected to the right side of the connecting tube, and a second spring fixed at the end of the supporting plate by a limiting tube, and the other end of the second spring is fixed to the horizontal plate.

[0014] Preferably, the abutment member comprises a contact plate extending leftward from the outer side of the annular connecting seat and an abutment convex plate arranged on the outer side of the left end of the contact plate, and the abutment convex plate abuts against the inner wall of the abutment plate.

[0015] Preferably, the inflation assembly includes an inflation cylinder fixed to the right end of the docking ring seat, a piston arranged inside the inflation cylinder, and a connecting rod fixed to the middle part of the right end of the piston. An end cover is fixed to the right end of the inflation cylinder, and the right end of the connecting rod passes through the end cover and is connected to a raised connecting plate on the annular connecting seat.

[0016] Preferably, an inclined inflation tube is provided on the right side of the inflation tube, and the other end of the inclined inflation tube is connected to the annular airbag through a channel in the side wall of the plug-in tube.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can quickly realize the rapid connection and disassembly of the outlet pipe on the turbocharger and the bellows on the air inlet box through the connecting component, which is beneficial to improving the detection efficiency of the turbocharger pressure detection; after the connecting component is installed, the outlet pipe and the connecting component can be firmly and sealed connected simultaneously, such a firm connection will not fall off during detection, so that the connection between the outlet pipe and the bellows is firm and stable, and such a sealed connection will not leak at the connection between the connecting component and the outlet pipe during detection, so as to ensure the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the exploded structure of the connection between the air outlet pipe and the connecting assembly of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the connection between the air outlet pipe and the connecting assembly of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection assembly in the initial state of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the connection between the inflator, the docking ring seat, the abutting ring seat and the plug-in tube of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the second spring, the abutting plate, the connecting tube and the clamping seat of the present invention;

[0023] Figure 6 It is a schematic diagram of a three-dimensional structure in which an annular connecting seat, a contact plate, a first spring and a raised connecting plate are connected in the present invention;

[0024] Figure 7 For the present invention Figure 3 A side view structural schematic diagram of;

[0025] Figure 8 It is a cross-sectional structural schematic diagram of the buckle connection of the present invention;

[0026] Fig. 9 It is a cross-sectional structural schematic diagram of the connection of the inflatable components of the present invention;

[0027] Fig.10 For the present invention Figure 3 Schematic diagram of the three-dimensional structure from another perspective;

[0028] Fig.11 It is a schematic diagram of the three-dimensional structure of the air outlet pipe and the connecting assembly of the present invention.

[0029] In the figure: 1. box body; 2. barometer; 3. air inlet box; 4. bellows; 5. connecting assembly; 501. plug-in sleeve; 502. locking nut; 503. connecting rod; 504. connecting sleeve; 505. holder; 506. annular airbag; 507. inflator; 508. docking ring seat; 509. annular connecting seat; 510. raised connecting plate; 511. inflatable oblique tube; 512. first spring; 513. horizontal plate; 514. abutting ring seat; 515. abutting plate; 516. pin shaft; 517. limiting sleeve; 518. second spring; 519. contact plate; 520. abutting convex plate; 521. piston; 522. end cover; 523. vertical frame; 524. slot; 6. turbocharger; 7. outlet pipe; 8. flange. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] Example:

[0032] See also Figure 1-11 , the present invention provides a technical solution:

[0033] A turbocharger pressure detection device comprises a box body 1, an air intake box 3 is arranged inside the box body 1, a pressure gauge 2 is arranged on the air intake box 3, a connecting assembly 5 is connected to the side of the air intake box 3 by a bellows 4 extending through the box body 1, and the connecting assembly 5 is used to connect to an outlet pipe 7 on a turbocharger 6; the pressure gauge 2 is a PGS23 series electric contact pressure gauge, a variety of pressure gauges under the SMC brand, or other models that meet the use requirements; a pressure relief valve is also arranged on the air intake box 3, which is controlled by a PLC, and the model is a BUCHER pressure relief valve, WUVPLC-1CO-35-10-124D, or other models that meet the use requirements; when the turbocharger 6 is working and air is introduced into the air intake box 3 through the outlet pipe 7, the connecting assembly 5 and the bellows 4, the pressure gauge 2 is used to detect the air pressure in the air intake box 3, thereby detecting the outlet air pressure of the turbocharger 6 when it is working.

[0034] At this time, if the outlet air pressure of the turbocharger 6 during operation is greater than a preset safety value, the PLC controls the pressure relief valve to relieve the pressure of the air intake box 3 to ensure safety.

[0035] The end of the air outlet pipe 7 is provided with a flange 8, and the connecting assembly 5 includes a plug-in sleeve 501 integrally connected to the end of the bellows 4, a docking ring seat 508 provided on the left side of the plug-in sleeve 501, an annular connecting seat 509 sleeved on the right side of the plug-in sleeve 501, and a locking nut 502 screwed on the right side of the plug-in sleeve 501;

[0036] The outside of the plug-in tube 501 is also provided with a support ring seat 514 located on the right side of the docking ring seat 508 . The first spring 512 is sleeved on the outside of the plug-in tube 501 , and both ends of the first spring 512 are fixed between the support ring seat 514 and the annular connecting seat 509 .

[0037] like Figure 8 and 9 As shown, the left end of the annular connecting seat 509 is also provided with an annular limiting groove for connecting the right end of the first spring 512, so as to limit the position of the first spring 512 and ensure that the first spring 512 is sleeved on the outside of the plug-in tube 501 and does not contact the outer surface of the plug-in tube 501.

[0038] In the initial state, the locking nut 502 rotates clockwise, so that the locking nut 502 moves to the left, and the locking nut 502 is gradually tightened, so that the locking nut 502 pushes the annular connecting seat 509 to move to the left along the plug-in tube 501, and the first spring 512 is gradually in a compressed state.

[0039] The docking ring seat 508 is movably connected with snap fasteners at equal intervals;

[0040] A vertical frame 523 is disposed on the abutting ring seat 514, and a horizontal plate 513 is disposed on the top of the vertical frame 523;

[0041] A slot 524 is provided on the docking ring seat 508, and the fastener includes a connecting tube 504 movably connected in the slot 524 by a pin shaft 516, a seat 505 fixed on the connecting tube 504, an abutment plate 515 connected to the right side of the connecting tube 504, and a second spring 518 fixed at the end of the abutment plate 515 by a limiting tube 517, and the other end of the second spring 518 is fixed to the horizontal plate 513.

[0042] The abutting member includes a contact plate 519 extending leftward from the outer side of the annular connecting seat 509 and an abutting protrusion 520 arranged on the outer side of the left end of the contact plate 519 , and the abutting protrusion 520 abuts against the inner wall of the abutting plate 515 .

[0043] In the initial state, if Figure 7As shown, after the annular connecting seat 509 moves to the left along the plug-in tube 501, the left end of the contact plate 519 on the annular connecting seat 509 passes through the vertical frame 523, and under the elastic force of the second spring 518 on the abutment plate 515, the seat 505, the connecting tube 504 and the abutment plate 515 rotate as a whole with the pin shaft 516 as the center until the seat 505 is in an open state.

[0044] Inflatable components are provided at equal intervals on the right end of the docking ring seat 508;

[0045] The inflation assembly includes an inflation cylinder 507 fixed to the right end of the docking ring seat 508, a piston 521 arranged inside the inflation cylinder 507, and a connecting rod 503 fixed to the middle part of the right end of the piston 521. An end cover 522 is fixed to the right end of the inflation cylinder 507. The right end of the connecting rod 503 passes through the end cover 522 and is connected to the raised connecting plate 510 on the annular connecting seat 509.

[0046] An inflating inclined tube 511 is provided on the right side of the inflating cylinder 507 , and the other end of the inflating inclined tube 511 is communicated with the annular airbag 506 through a channel in the side wall of the plug-in cylinder 501 .

[0047] An annular air bag 506 is provided on the outer side of the left end of the plug-in tube 501, and the left end of the plug-in tube 501 is inserted into the inner end of the outlet pipe 7;

[0048] In the initial state, if Fig. 9 As shown, after the annular connecting seat 509 moves to the left along the plug-in tube 501, the protruding connecting plate 510 on the annular connecting seat 509 moves the piston 521 to the left end of the inside of the inflatable tube 507 through the connecting rod 503, thereby forming a negative pressure on the right side inside the inflatable tube 507, and the air in the annular airbag 506 is sucked into the right side of the inflatable tube 507 through the channel in the side wall of the plug-in tube 501 and the inflatable inclined tube 511, so that the annular airbag 506 is in a collapsed state without inflation;

[0049] At this time, since the annular airbag 506 is arranged in the annular groove on the outer surface of the left end of the plug-in tube 501, the annular airbag 506 in an uninflated collapsed state is completely retracted into the annular groove on the outer surface of the left end of the plug-in tube 501. In this way, after the left end of the plug-in tube 501 is inserted into the end of the air outlet pipe 7, the annular airbag 506 will not cause any obstruction.

[0050] After the locking nut 502 moves to the right, the first spring 512 on the annular connecting seat 509 drives the annular connecting seat 509 to move to the right. At this time, the abutment member on the annular connecting seat 509 drives the snap member to rotate and snaps the flange 8 to the left end of the docking ring seat 508. At the same time, the inflation component fills gas into the annular airbag 506, so that the annular airbag 506 is sealed on the inner wall of the end of the outlet pipe 7 after expansion.

[0051] Specifically, when in use, the outlet pipe 7 is disassembled from the intake manifold of the automobile engine and then disconnected, and then the left end of the plug-in cylinder 501 is inserted into the end of the outlet pipe 7, so that the flange 8 is close to the left end surface of the docking ring seat 508, and then the locking nut 502 is rotated counterclockwise to move the locking nut 502 to the right, and the locking nut 502 gradually relaxes the pressure on the annular connecting seat 509. Under the elastic force of the first spring 512 on the annular connecting seat 509, the annular connecting seat 509 moves to the right along the plug-in cylinder 501;

[0052] At this time, the contact plate 519 on the annular connecting seat 509 drives the abutting protrusion 520 to move rightward, and the abutting protrusion 520 slides along the inner wall of the abutting plate 515 toward the right end of the abutting plate 515. Therefore, under the abutting effect of the abutting protrusion 520 on the abutting plate 515, the clamping seat 505, the connecting cylinder 504 and the abutting plate 515 are rotated and closed as a whole with the pin shaft 516 as the center of the circle, and the clamping seat 505 is clamped on the flange 8, and the flange 8 is clamped on the left end of the docking ring seat 508 (as shown in FIG. Figure 2 and 11 As shown), the connection assembly 5 is fixedly connected to the air outlet pipe 7;

[0053] At the same time, the protruding connecting plate 510 on the annular connecting seat 509 moves the piston 521 toward the right end of the inside of the inflatable cylinder 507 through the connecting rod 503, so that the air on the right side of the inflatable cylinder 507 is filled into the annular airbag 506 through the inflating inclined tube 511 and the channel in the side wall of the plug-in cylinder 501 and the inflating inclined tube 511, so that the annular airbag 506 is in an expanded state, and the outer surface of the annular airbag 506 is squeezed out from the annular groove on the outer surface of the left end of the plug-in cylinder 501, so that the annular airbag 506 is closely attached to the inner wall of the end of the outlet pipe 7, so that the outlet pipe 7 is sealed after being connected to the connecting component 5;

[0054] Then, when the turbocharger 6 works and introduces air into the air intake box 3 through the air outlet pipe 7, the connecting assembly 5 and the bellows 4, the barometer 2 is used to detect the air pressure in the air intake box 3, thereby detecting the outlet air pressure of the turbocharger 6 when it works;

[0055] Since the holder 505 is clamped on the flange 8, the flange 8 is clamped on the left end of the docking ring holder 508 to achieve a fixed connection between the connecting assembly 5 and the air outlet pipe 7. In this way, the connecting assembly 5 will not fall off during the inspection, so that the connection between the air outlet pipe 7 and the corrugated pipe 4 is firm and stable;

[0056] Since the annular airbag 506 is inflated and closely attached to the inner wall of the end of the air outlet pipe 7, the air outlet pipe 7 is sealed after being connected to the connecting component 5. Thus, during the test, there will be no air leakage at the connection between the connecting component 5 and the air outlet pipe 7, so as to ensure the accuracy of the test;

[0057] After the test is completed, the connection assembly 5 and the air outlet pipe 7 are disassembled, that is, the locking nut 502 is manually rotated clockwise to move the locking nut 502 to the left, and the locking nut 502 is gradually tightened, so that the locking nut 502 pushes the annular connection seat 509 to move to the left along the plug-in tube 501, and the first spring 512 is gradually in a compressed state;

[0058] As the annular connecting seat 509 moves leftward along the plug-in cylinder 501, the left end of the contact plate 519 on the annular connecting seat 509 passes through the vertical frame 523. Under the elastic force of the second spring 518 on the abutment plate 515, the clamping seat 505, the connecting cylinder 504 and the abutment plate 515 are rotated as a whole with the pin shaft 516 as the center until the clamping seat 505 is in an open state and the clamping seat 505 no longer clamps the flange 8.

[0059] At the same time, the raised connecting plate 510 on the annular connecting seat 509 moves the piston 521 to the left end of the interior of the inflation cylinder 507 through the connecting rod 503, thereby forming a negative pressure on the right side of the interior of the inflation cylinder 507, and the air in the annular airbag 506 is sucked into the right side of the interior of the inflation cylinder 507 through the channel in the side wall of the plug-in cylinder 501 and the inflation inclined tube 511, so that the annular airbag 506 is in an uninflated collapsed state and retracts into the annular groove on the outer surface of the left end of the plug-in cylinder 501. Then, the plug-in cylinder 501 is pulled out to the right, and the connecting assembly 5 and the air outlet pipe 7 can be quickly disassembled.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turbocharger pressure detection device, comprising a housing, characterized in that: An air intake box is arranged inside the box body, an air pressure gauge is arranged on the air intake box, and a connecting assembly is integrally connected to the side of the air intake box by a bellows, and the connecting assembly is used to connect to the outlet pipe on the turbocharger; The end of the air outlet pipe is provided with a flange, and the connecting assembly includes a plug-in sleeve integrally connected to the end of the bellows, a docking ring seat provided on the left side of the plug-in sleeve, an annular connecting seat sleeved on the right side of the plug-in sleeve, and a locking nut threaded on the right side of the plug-in sleeve; The docking ring seat is movably connected with snap fasteners at equal intervals, the right end of the docking ring seat is provided with inflatable components at equal intervals, the outer side of the left end of the plug-in tube is provided with an annular air bag, and the left end of the plug-in tube is inserted into the end of the air outlet pipe; After the locking nut moves to the right, the first spring on the annular connecting seat drives the annular connecting seat to move to the right. At this time, the abutment member on the annular connecting seat drives the snap member to rotate and snap the flange onto the left end of the docking ring seat. At the same time, the inflation assembly fills gas into the annular airbag, so that the annular airbag is sealed on the inner wall of the end of the outlet pipe after expansion.

2. A turbocharger pressure detection device according to claim 1, characterized in that: The outside of the plug-in cylinder is also provided with a supporting ring seat located on the right side of the docking ring seat. The first spring is sleeved on the outside of the plug-in cylinder, and the two ends of the first spring are fixed between the supporting ring seat and the annular connecting seat.

3. A turbocharger pressure detection device according to claim 2, characterized in that: A vertical frame is provided on the abutting ring seat, and a horizontal plate is provided on the top of the vertical frame; The docking ring seat is provided with a slot, and the fastener includes a connecting tube movably connected in the slot by a pin shaft, a socket fixed on the connecting tube, a supporting plate connected to the right side of the connecting tube, and a second spring fixed at the end of the supporting plate by a limiting tube, and the other end of the second spring is fixed to the horizontal plate.

4. A turbocharger pressure detection device according to claim 3, characterized in that: The abutting member comprises a contact plate extending to the left outside the annular connecting seat and an abutting convex plate arranged outside the left end of the contact plate, wherein the abutting convex plate abuts against the inner wall of the abutting plate.

5. A turbocharger pressure detection device according to claim 1, characterized in that: The inflation assembly includes an inflation cylinder fixed to the right end of the docking ring seat, a piston arranged inside the inflation cylinder, and a connecting rod fixed to the middle of the right end of the piston. An end cover is fixed to the right end of the inflation cylinder, and the right end of the connecting rod passes through the end cover and is connected to a raised connecting plate on the annular connecting seat.

6. A turbocharger pressure detection device according to claim 5, characterized in that: An inflating oblique tube is arranged on the right side of the inflating cylinder, and the other end of the inflating oblique tube is communicated with the annular air bag through a channel in the side wall of the plug-in cylinder.

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