An automotive pipeline flow detection device

Abstract

The present invention relates to the technical field of automotive pipeline flow detection, and specifically relates to an automotive pipeline flow detection device, which includes a main pipe. A flow electronic sensor is fixedly installed through the main pipe. Flow pipes are provided at both the front and rear ends of the main pipe, and an installation mechanism is provided on the main pipe. An integrated and rapid installation and disassembly of the air flow meter is completed by adopting an operation model of positioning, docking, and fixing, realizing efficient maintenance and stable connection. By using the engagement of the hook plate and the card slot and the cooperation of the insertion rod and the limit post, the alignment and fixation of the flow pipe can be quickly completed. The rapid installation and disassembly of the air flow meter are realized through a simple rotation action, improving the maintenance efficiency. At the same time, through the multi-point support of the multi-layer connecting plate, the connection stability between the flow pipe and the main pipe is enhanced, reducing displacement and vibration. And a modular design is adopted, making the components easier to separate and combine during the maintenance process, thereby simplifying the operation steps, significantly shortening the working time, and improving the maintenance efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive pipeline flow detection, and specifically to an automotive pipeline flow detection device. Background Art

[0002] The detection of air flow in the pipelines of an automotive engine is a key technology to ensure the efficient and reliable operation of the engine; by accurately measuring the air flow, the engine control unit (ECU) can optimize functions such as fuel injection, ignition timing, and emission control, improving the vehicle's performance, fuel economy, and environmental friendliness; however, the accuracy of the air flow meter decreases over time, especially in harsh working environments (such as high temperature, vibration, dust, etc.). Regular inspection of the air flow meter can ensure that the sensor always provides accurate data and avoid engine performance problems caused by measurement errors. Therefore, regular maintenance and timely handling of the air flow meter are crucial to ensure the normal operation of the engine.

[0003] However, the current maintenance of the air flow meter has the following disadvantages: during each maintenance of the air flow meter, it needs to be disassembled and assembled. The air flow meter is usually fixed on the connecting pipes on both sides by means such as clamp installation and bolt installation. These methods require the individual sealing and tightening of multiple bolts. However, multiple bolts need to be tightened or loosened one by one, increasing the complexity and working time of installation and disassembly; moreover, each fixed bolt is individually stressed, which may cause some bolts not to be evenly stressed, resulting in some bolts possibly bearing excessive stress. This uneven stress may cause the bolts to loosen or even break, thus affecting the stability and safety of the flow meter. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an automotive pipeline flow detection device, which is achieved by the following specific technical means: an automotive pipeline flow detection device includes a main pipe, on which a flow electronic sensor is fixedly installed through. There are flow pipes at both the front and rear ends of the main pipe, and an installation mechanism is arranged on the main pipe; the installation mechanism includes a plugging part arranged on the main pipe, a supporting part is arranged inside the main pipe, and a splicing part for quickly docking the main pipe and the flow pipe through concave-convex surface splicing is arranged on the supporting part and the flow pipe together.

[0005] A cooperation mechanism for docking with the installation mechanism is arranged on the flow pipe; the cooperation mechanism includes a positioning part arranged on the flow pipe and used to cooperate with the supporting part to position the installation position of the flow pipe and assist in limiting, and a cooperation part for cooperating with the plugging part to limit and fix the flow pipe is also arranged on the flow pipe.

[0006] A fixing mechanism is provided on the main body pipe; the fixing mechanism includes a fixing part provided on the main body pipe, and a limiting part for restricting the installation position of the plugging part is provided on the fixing part. An upper auxiliary part for cooperating with the plugging part to respectively perform the first auxiliary fixation on the main body pipe and the flow pipe is provided on both the main body pipe and the flow pipe, and a lower auxiliary part for performing the second auxiliary fixation on the main body pipe and the front and rear symmetric flow pipes to form an integral whole is provided on the main body pipe.

[0007] After the mating mechanism and the installation mechanism are docked, the fixing mechanism will cooperate with the two to quickly install and disassemble the main body pipe and the flow pipe integrally.

[0008] As a preferred technical solution of the present invention, the plugging part includes a fixed horizontal plate, a first sliding hole, a vertical fixing rod and a clamping groove. A fixed horizontal plate is fixedly installed on the upper end surface of the flow electronic sensor. The fixed horizontal plate is provided with symmetrically arranged first sliding holes in the front and rear directions. A vertical fixing rod is slidably installed in the first sliding holes. The lower end of the vertical fixing rod movably penetrates the outer ring wall of the main body pipe. Clamping grooves are arranged on the outer ring wall of the vertical fixing rod and are distributed up and down inside the main body pipe, and the openings of the clamping grooves distributed up and down face away from each other.

[0009] As a preferred technical solution of the present invention, the supporting part includes a rotating ring, a filter screen and a second sliding hole. Symmetrically arranged rotating rings in the front and rear directions are installed in the main body pipe through bearings arranged. A filter screen is fixedly installed on the inner ring wall of the rotating ring. The filter screen is provided with symmetrically arranged second sliding holes in the up and down directions, and the positions of the second sliding holes correspond to the clamping grooves.

[0010] As a preferred technical solution of the present invention, the splicing part includes splicing bumps and alignment holes. A plurality of mutually staggered splicing bumps are uniformly arranged along the circumferential direction on the opposite surfaces of the rotating ring and the flow pipe. A rubber layer is wrapped around the opposite surfaces of the rotating ring and the flow pipe. A plurality of alignment holes are uniformly penetrated along the circumferential direction on the side wall of the rotating ring close to the corresponding flow pipe.

[0011] As a preferred technical solution of the present invention, the positioning part includes a plug rod and a limiting column. Plug rods corresponding to the alignment holes one by one are fixedly installed on the side wall of the flow pipe close to the main body pipe, and limiting columns corresponding to the alignment holes one by one are fixedly installed on the inner ring wall of the main body pipe. Embedding grooves corresponding to each other are arranged on both the limiting column and the corresponding plug rod.

[0012] As a preferred technical solution of the present invention, the mating part includes an L-shaped support plate and a hook plate. Symmetrically arranged L-shaped support plates in the up and down directions are fixedly installed on the inner ring wall of the flow pipe close to the main body pipe. A triangular plate is fixedly installed at one end of the horizontal section of the L-shaped support plate close to the flow electronic sensor. The triangular plate is inserted into the corresponding second sliding hole. A hook plate is fixedly installed at one end of the triangular plate close to the flow electronic sensor. The hook plates symmetrically arranged in the up and down directions on the same side have opposite opening directions. The hook plate is engaged with the corresponding clamping groove, and one end of the hook plate close to the flow electronic sensor is flexible.

[0013] As a preferred technical solution of the present invention, the fixing part includes a fixing plate, an electric control component and a first screw hole. A fixing plate is arranged above the fixing cross plate. An electric control component cooperating with the flow electronic sensor is fixedly installed on the fixing plate. First screw holes symmetrical in the front and back are formed on the upper end surface of the fixing cross plate. The fixing plate is fixed on the upper end surface of the fixing cross plate by a first bolt arranged to cooperate with the first screw hole.

[0014] As a preferred technical solution of the present invention, the limiting part includes a hexagonal convex block and a hexagonal alignment groove. A hexagonal convex block is fixedly installed at the upper end of the vertical rod. A positioning block is fixedly installed on the lower end surface of the hexagonal convex block. A positioning groove cooperating with the corresponding positioning block is arranged on the upper end surface of the fixing cross plate. Hexagonal alignment grooves corresponding to the hexagonal convex blocks one by one are formed on the lower end surface of the fixing plate.

[0015] As a preferred technical solution of the present invention, the upper auxiliary part includes a first connecting plate, a pressing groove and a second screw hole. A first connecting plate is slidably connected to the vertical rod. The first connecting plate is composed of a flat plate close to the fixing cross plate, an inclined plate in the middle and a flat plate far from the fixing cross plate. A pressing groove located at the first sliding hole is formed on the upper end surface of the fixing cross plate. The flat plate close to the fixing cross plate is inserted into the pressing groove. A second screw hole is formed on the outer ring wall of the flow pipe. A second bolt is arranged in the second screw hole. The second bolt passes through the first connecting plate and then is inserted into the second screw hole.

[0016] As a preferred technical solution of the present invention, the lower auxiliary part includes a second connecting plate and a slot. A second connecting plate is arranged below the main pipe. A third screw hole is formed on the outer ring wall of the flow pipe. A third bolt is arranged in the third screw hole. The third bolt passes through the second connecting plate and then is inserted into the third screw hole. Slots corresponding to the vertical rods one by one are formed on one side wall of the second connecting plate close to the main pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. For this automotive pipeline flow detection device, through the mutual cooperation of the installed mechanism, the cooperation mechanism and the fixing mechanism set, the integrated rapid installation and disassembly of the air flow meter are completed by using the operation models of positioning, docking and fixing, realizing efficient maintenance and stable connection. By the engagement of the hook plate and the card slot and the cooperation of the insertion rod and the limiting column, the alignment and fixing of the flow pipe can be quickly completed. The rapid installation and disassembly of the air flow meter can be realized through simple rotation actions, improving the maintenance efficiency. At the same time, through the multi-point support of the multi-layer connecting plates, the connection stability between the flow pipe and the main pipe is enhanced, reducing displacement and vibration, and adopting a modular design, making the components easier to separate and combine during maintenance, thus simplifying the operation steps to quickly complete the installation and disassembly of the flow meter, significantly shortening the working time and improving the maintenance efficiency.

[0018] 2. The automotive pipeline flow detection device, through the combined use of the installed mechanism and the mating mechanism, quickly completes the alignment and fixation of the flow pipe during the process of fitting the hook plate with the card slot. When maintenance is required, only by rotating the vertical fixing rod and the flow pipe in the reverse direction can the air flow meter be disassembled. Thus, there is no need to operate each bolt individually, and the installation and disassembly can be completed only through simple fitting and rotation actions, greatly shortening the operation time and thus improving the efficiency of the maintenance work. Moreover, during the installation process, the mutual fitting of the insertion rod and the limit post further assists in fixing the flow pipe, increasing the connection stability and avoiding displacement caused by vibration or pressure changes.

[0019] 3. The automotive pipeline flow detection device, through the set fixing mechanism, after fixing the flow pipe on the main pipe, respectively assists in fixing the flow pipes on both sides to the main pipe through the first connecting plate, and finally forms an integral whole of the flow pipes on both sides and the main pipe through the second connecting plate, providing multiple-point support for the installation of the air flow meter, making the connection between the flow pipe and the main pipe more stable, reducing the possibility of displacement and vibration, and through the modular design, enabling the flow pipe and the main pipe to be more conveniently separated and combined during the overhaul and maintenance process, further simplifying the operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0021] Figure 2 is an exploded structural schematic diagram of the present invention.

[0022] Figure 3 is a sectional three-dimensional structural schematic diagram of the main pipe of the present invention.

[0023] Figure 4 is a partial bottom three-dimensional structural schematic diagram of the fixing part and the limiting part of the present invention.

[0024] Figure 5 is a partial three-dimensional structural schematic diagram of the installation mechanism and the mating mechanism of the present invention.

[0025] Figure 6 is a partial sectional three-dimensional structural schematic diagram of the mating mechanism before rotation of the present invention.

[0026] Figure 7 is a partial sectional three-dimensional structural schematic diagram of the mating mechanism after rotation of the present invention.

[0027] Figure 8 is Figure 7 an enlarged structural schematic diagram of part A in

[0028] In the figure: 1. Main pipe; 2. Flow electronic sensor; 3. Circulation pipe; 4. Installation mechanism; 41. Insertion part; 411. Fixed horizontal plate; 412. First sliding hole; 413. Vertical fixing rod; 414. Card slot; 42. Support part; 421. Rotating ring; 422. Filter screen; 423. Second sliding hole; 43. Splicing part; 431. Splicing convex block; 432. Alignment hole; 5. Matching mechanism; 51. Positioning part; 511. Inserting rod; 512. Limiting column; 52. Matching part; 521. L-shaped support plate; 522. Hook plate; 6. Fixing mechanism; 61. Fixing part; 611. Fixing plate; 612. Electric control component; 613. First screw hole; 62. Limiting part; 621. Hexagonal convex block; 622. Hexagonal alignment groove; 63. Upper auxiliary part; 631. First connecting plate; 632. Pressing groove; 633. Second screw hole; 64. Lower auxiliary part; 641. Second connecting plate; 642. Slot. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 , an automobile pipeline flow detection device, including a main pipe 1, a flow electronic sensor 2 is fixedly installed through the main pipe 1, circulation pipes 3 are arranged at both the front and rear ends of the main pipe 1, and an installation mechanism 4 is arranged on the main pipe 1; the installation mechanism 4 includes an insertion part 41 arranged on the main pipe 1, a support part 42 is arranged in the main pipe 1, and a splicing part 43 for quickly docking the main pipe 1 and the circulation pipe 3 through the splicing of concave and convex surfaces is arranged on the support part 42 and the circulation pipe 3 together.

[0031] Please refer to Figure 2 , a matching mechanism 5 is arranged on the circulation pipe 3 and is docked with the installation mechanism 4; the matching mechanism 5 includes a positioning part 51 arranged on the circulation pipe 3 and used for cooperating with the support part 42 to position the installation position of the circulation pipe 3 and assist in limiting, and a matching part 52 for cooperating with the insertion part 41 to limit and fix the circulation pipe 3 is also arranged on the circulation pipe 3.

[0032] Please refer to Figure 2, a fixing mechanism 6 is provided on the main body pipe 1; the fixing mechanism 6 includes a fixing part 61 provided on the main body pipe 1, and a limiting part 62 for restricting the installation position of the insertion part 41 is provided on the fixing part 61. An upper auxiliary part 63 for cooperating with the insertion part 41 to respectively perform the first auxiliary fixation on the main body pipe 1 and the circulation pipe 3 is jointly provided on the main body pipe 1 and the circulation pipe 3, and a lower auxiliary part 64 for performing the second auxiliary fixation on the main body pipe 1 and the front and rear symmetric circulation pipes 3 to form an integral whole is provided on the main body pipe 1.

[0033] After the matching mechanism 5 and the installation mechanism 4 are docked, the fixing mechanism 6 will cooperate with the two to quickly install and disassemble the main body pipe 1 and the circulation pipe 3 integrally.

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 , the insertion part 41 includes a fixed horizontal plate 411, a first sliding hole 412, a vertical fixing rod 413 and a clamping groove 414. The fixed horizontal plate 411 is fixedly installed on the upper end surface of the flow electronic sensor 2. The fixed horizontal plate 411 is provided with symmetrically arranged first sliding holes 412 in the front and rear. A vertical fixing rod 413 is slidably installed in the first sliding hole 412. The lower end of the vertical fixing rod 413 movably penetrates the outer ring wall of the main body pipe 1. Clamping grooves 414 are provided on the outer ring wall of the vertical fixing rod 413 and are distributed up and down inside the main body pipe 1. The openings of the clamping grooves 414 distributed up and down face away from each other.

[0035] Please refer to Figure 2 and Figure 4 , the limiting part 62 includes a hexagonal convex block 621 and a hexagonal alignment groove 622. The hexagonal convex block 621 is fixedly installed on the upper end of the vertical fixing rod 413. A positioning block is fixedly installed on the lower end surface of the hexagonal convex block 621. A positioning groove for cooperating with the corresponding positioning block is provided on the upper end surface of the fixed horizontal plate 411. Hexagonal alignment grooves 622 corresponding to the hexagonal convex blocks 621 are provided on the lower end surface of the fixing plate 611.

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , the upper auxiliary part 63 includes a first connecting plate 631, a pressing groove 632 and a second screw hole 633. The first connecting plate 631 is slidably connected to the vertical fixing rod 413. The first connecting plate 631 is composed of a flat plate close to the fixed horizontal plate 411, an inclined plate in the middle and a flat plate away from the fixed horizontal plate 411. A pressing groove 632 is provided on the upper end surface of the fixed horizontal plate 411 at the position of the first sliding hole 412. The flat plate close to the fixed horizontal plate 411 is inserted into the pressing groove 632. A second screw hole 633 is provided on the outer ring wall of the circulation pipe 3. A second bolt is arranged in the second screw hole 633. The second bolt passes through the first connecting plate 631 and then is inserted into the second screw hole 633.

[0037] During specific operation, when installing the air flow meter, first slide the first connecting plate 631 onto the vertical fixing rod 413 respectively. Then, pass the vertical fixing rods 413 on both sides through the first sliding holes 412 and then through the main body pipe 1. The hexagonal convex block 621 will press against the upper end face of the fixed horizontal plate 411, preventing the first sliding holes 412 from further descending. At this time, the positioning blocks on the vertical fixing rods 413 are not engaged in the positioning grooves, and the opening of one of the clamping grooves 414 faces the rear flow pipe 3. At this time, the flat plate of the first connecting plate 631 close to the fixed horizontal plate 411 will be moved into the pressing groove 632, and the hexagonal convex block 621 will press this end of the first connecting plate 631 against the upper end face of the fixed horizontal plate 411 to limit the movement of the first connecting plate 631.

[0038] Please refer to Figure 2 、 Figure 5 、 Figure 6 and Figure 7 . The supporting part 42 includes a rotating ring 421, a filter screen 422 and a second sliding hole 423. The main body pipe 1 is provided with symmetrically arranged rotating rings 421 before and after through bearings. The inner ring wall of the rotating ring 421 is fixedly installed with a filter screen 422. The filter screen 422 is provided with symmetrically arranged second sliding holes 423 up and down, and the positions of the second sliding holes 423 correspond to those of the clamping grooves 414.

[0039] Please refer to Figure 2 and Figure 5 . The splicing part 43 includes a splicing convex block 431 and a positioning hole 432. A number of mutually staggered splicing convex blocks 431 are evenly arranged along the circumferential direction on the opposite surfaces of the rotating ring 421 and the flow pipe 3. The opposite surfaces of the rotating ring 421 and the flow pipe 3 are wrapped with a rubber layer. A number of positioning holes 432 are evenly penetrated along the circumferential direction on the side wall of the rotating ring 421 close to the corresponding flow pipe 3.

[0040] Please refer to Figure 2 、 Figure 3 and Figure 8 . The positioning part 51 includes an insertion rod 511 and a limiting post 512. The insertion rods 511 corresponding to the positioning holes 432 are fixedly installed on the side wall of the flow pipe 3 close to the main body pipe 1. The limiting posts 512 corresponding to the positioning holes 432 are fixedly installed on the inner ring wall of the main body pipe 1. Embedding grooves corresponding to each other are provided on both the limiting post 512 and the corresponding insertion rod 511.

[0041] Please refer to Figure 2 、 Figure 5 、 Figure 6 and Figure 7, the mating part 52 includes an L-shaped support plate 521 and a hook plate 522. On the inner wall of the inner ring of the flow pipe 3, symmetrically arranged L-shaped support plates 521 are fixedly installed on the side close to the main pipe 1. At one end of the horizontal section of the L-shaped support plate 521 close to the flow electronic sensor 2, a triangular plate is fixedly installed. The triangular plate is inserted into the corresponding second sliding hole 423. At one end of the triangular plate close to the flow electronic sensor 2, a hook plate 522 is fixedly installed. The opening directions of the symmetrically arranged upper and lower hook plates 522 on the same side are opposite. The hook plate 522 is engaged with the corresponding card slot 414. One end of the hook plate 522 close to the flow electronic sensor 2 is flexible.

[0042] During specific operation, after the vertical fixing rod 413 is installed, rotate the rotating ring 421 to drive the second sliding hole 423 to rotate from the horizontal state to the vertical state. Then, move the flow pipe 3 closer to the main pipe 1, so that the triangular plate on the horizontal section of the L-shaped support plate 521 is inserted into the second sliding hole 423. At this time, the splicing convex blocks 431 on the opposite surfaces of the rotating ring 421 and the flow pipe 3 will approach each other until the opposite surfaces of the rotating ring 421 and the flow pipe 3 are in contact and the splicing convex blocks 431 are engaged with each other, combining the flow pipe 3 and the rotating ring 421 into a whole.

[0043] During the process of the flow pipe 3 approaching the rotating ring 421, the insertion rod 511 will pass through the corresponding alignment hole 432 and reach inside the main pipe 1. Then, rotate the flow pipe 3 to drive the rotating ring 421 to rotate synchronously until the second sliding hole 423 is rotated from the vertical state to the horizontal state again. During this process, the triangular plate on the horizontal section of the L-shaped support plate 521 will rotate around the center of the rotating ring 421. When the triangular plate drives the hook plate 522 to reach the corresponding card slot 414, the contact between the hook plate 522 and the vertical fixing rod 413 will cause the flexible material at the front end of the hook plate 522 to deform, so that the vertical fixing rod 413 is simultaneously placed in the openings of the corresponding upper and lower hook plates 522. Then, rotate the hexagonal convex block 621 to drive the vertical fixing rod 413 to rotate, so that the positioning block is inserted into the positioning slot. During this process, the card slot 414 will rotate to the position at the rear end of the hook plate 522, and the hook plate 522 is inserted into the card slot 414, thus fixing the flow pipe 3 and the rotating ring 421, making the connection of the splicing convex blocks 431 between them more tight, and fixing the flow pipe 3 on the main pipe 1.

[0044] Meanwhile, during the process of the triangular plate rotating around the center of the rotating ring 421, the insertion rod 511 contacts the corresponding limiting column 512, and the insertion rod 511 is engaged in the embedding groove of the limiting column 512. The mutual engagement of the insertion rod 511 and the limiting column 512 further assists in fixing the flow pipe 3, increasing the stability of their connection and avoiding displacement caused by vibration or pressure change.

[0045] When it is necessary to disassemble the air flow meter, just rotate the fixing rod 413 in the reverse direction so that the card slot 414 disengages from the hook plate 522. Then, rotate the flow pipe 3 in the reverse direction to pull out the main pipe 1 from the flow pipe 3. In this way, during the process of fitting the hook plate 522 and the card slot 414 with each other, the alignment and fixation of the flow pipe 3 can be quickly completed. And when maintenance is needed, just rotate the fixing rod 413 and the flow pipe 3 in the reverse direction to complete the disassembly of the air flow meter. Thus, there is no need to operate each bolt individually. Just through simple fitting and rotation actions, the installation and disassembly can be completed, greatly shortening the operation time and thus improving the efficiency of the maintenance work.

[0046] Please refer to Figure 1 、 Figure 2 and Figure 4 As shown in, the fixing part 61 includes a fixing plate 611, an electric control component 612 and a first screw hole 613. A fixing plate 611 is arranged above the fixing horizontal plate 411. An electric control component 612 that cooperates with the flow electronic sensor 2 is fixedly installed on the fixing plate 611. Symmetric first screw holes 613 are formed in the upper end surface of the fixing horizontal plate 411 in the front and back. The fixing plate 611 is fixed to the upper end surface of the fixing horizontal plate 411 by a first bolt arranged to cooperate with the first screw hole 613.

[0047] During specific work, after fixing the flow pipe 3 on the main pipe 1, the worker holds an electric rotary tool to rotate the first bolt, thereby fixing the fixing plate 611 on the fixing horizontal plate 411. At this time, the fixing plate 611 will limit the hexagonal convex block 621 through the hexagonal alignment groove 622, so as to fix the position of the fixing rod 413. At the same time, the first connecting plate 631 is extruded into the pressure groove 632, thereby completing the fixation of the first connecting plate 631. Meanwhile, during the rotation of the flow pipe 3, the second screw hole 633 will be rotated below the first connecting plate 631, and then the first connecting plate 631 can be fixedly connected to the flow pipe 3 through a second bolt. In this way, after fixing the flow pipe 3 on the main pipe 1, the two sides of the flow pipe 3 are assisted and fixed through the first connecting plate 631 respectively.

[0048] Please refer to Figure 1 and Figure 2 As shown in, the lower auxiliary part 64 includes a second connecting plate 641 and a slot 642. A second connecting plate 641 is arranged below the main pipe 1. A third screw hole is formed in the outer ring wall of the flow pipe 3. A third bolt is arranged in the third screw hole. The third bolt passes through the second connecting plate 641 and then inserts into the third screw hole. A slot 642 corresponding to the fixing rod 413 one by one is formed in the side wall of the second connecting plate 641 close to the main pipe 1.

[0049] During specific operation, after the first connecting plate 631 is fixed, the slot 642 on the second connecting plate 641 is aligned and inserted below the vertical fixing rod 413, and both sides of the second connecting plate 641 are respectively fixed on the front and rear flow pipes 3 through the third bolts, thereby integrating the flow pipes 3 on both sides with the main pipe 1, providing multiple-point support for the installation of the air flow meter, making the connection between the flow pipe 3 and the main pipe 1 more stable, reducing the possibility of displacement and vibration, and enabling the components of the flow pipe 3 and the main pipe 1 to be more conveniently separated and combined during the overhaul and maintenance processes through modular design, further simplifying the operation steps.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile pipeline flow detection device, comprising a main pipe, characterized in that: The main pipe is fixedly provided with a flow electronic sensor, the front and rear ends of the main pipe are provided with flow pipes, and the main pipe is provided with a mounting mechanism; The installation mechanism comprises a plug-in portion arranged on the main body tube, a support portion is arranged inside the main body tube, and a splicing portion for quickly connecting the main body tube with the flow tube by splicing the concave and convex surfaces is arranged on the support portion and the flow tube; The circulation pipe is provided with a matching mechanism that interfaces with the installation mechanism; The matching mechanism includes a positioning part arranged on the flow tube and used to cooperate with the support part to implement positioning and auxiliary limiting of the installation position of the flow tube. The flow tube is also provided with a matching part used to cooperate with the plug-in part to implement limiting and fixing of the flow tube. A fixing mechanism is provided on the main tube; The fixing mechanism comprises a fixing part arranged on the main body tube, a limiting part for limiting the installation position of the plug-in part is arranged on the fixing part, an upper auxiliary part for cooperating with the plug-in part to respectively implement the first auxiliary fixing of the main body tube and the flow tube is arranged on the main body tube and the flow tube, and a lower auxiliary part for implementing the second auxiliary fixing of the main body tube and the front and rear symmetrical flow tubes so that the three form a whole is arranged on the main body tube; After the matching mechanism and the installation mechanism are connected, the fixing mechanism will cooperate with the two to quickly install and disassemble the main pipe and the flow pipe as a whole; The plug-in portion includes a fixed horizontal plate, a first sliding hole, a vertical rod and a card slot. The upper end surface of the flow electronic sensor is fixedly installed with a fixed horizontal plate, and a first sliding hole symmetrically opened in the front and rear is penetrated on the fixed horizontal plate. A vertical rod is slidably installed in the first sliding hole. The lower end of the vertical rod movably penetrates the outer ring wall of the main body tube. The outer ring wall of the vertical rod is provided with card slots located in the main body tube and distributed up and down, and the openings of the card slots distributed up and down face opposite to each other. The matching part includes an L-shaped support plate and a hook plate. The inner ring wall of the flow tube is fixedly installed with an L-shaped support plate that is symmetrical up and down on one side close to the main tube. The horizontal section of the L-shaped support plate is fixedly installed with a triangular plate on one end close to the flow electronic sensor. The triangular plate is inserted into the corresponding second sliding hole. The end of the triangular plate close to the flow electronic sensor is fixedly installed with a hook plate. The opening directions of the hook plates that are symmetrical up and down on the same side are opposite, and the hook plates are engaged with the corresponding card grooves. The limiting part includes a hexagonal protrusion and a hexagonal alignment groove. The upper end of the vertical rod is fixedly installed with a hexagonal protrusion, the lower end surface of the hexagonal protrusion is fixedly installed with a positioning block, and the upper end surface of the fixed horizontal plate is provided with a positioning groove that cooperates with the corresponding positioning block.

2. The automobile pipeline flow detection device according to claim 1, characterized in that: The support portion includes a swivel, a filter screen and a second sliding hole. A swivel that is symmetrical in front and back is installed in the main tube through a bearing. A filter screen is fixedly installed on the inner ring wall of the swivel. The filter screen is penetrated by a second sliding hole that is symmetrical in top and bottom, and the position of the second sliding hole corresponds to the slot.

3. The automobile pipeline flow detection device according to claim 2 is characterized in that: The splicing part includes a splicing protrusion and an alignment hole. The opposite surface of the swivel and the flow tube is evenly provided with a plurality of mutually staggered splicing protrusions along its circumference. The opposite surface of the swivel and the flow tube is wrapped with a rubber layer. A side wall of the swivel close to the corresponding flow tube is evenly provided with a plurality of alignment holes along its circumference.

4. The automobile pipeline flow detection device according to claim 3 is characterized in that: The positioning part includes an insertion rod and a limiting column. An insertion rod corresponding to the alignment holes is fixedly installed on a side wall of the flow tube close to the main tube, and a limiting column corresponding to the alignment holes is fixedly installed on the inner ring wall of the main tube. The limiting column and the corresponding insertion rod are provided with corresponding embedding grooves.

5. The automobile pipeline flow detection device according to claim 1, characterized in that: The end of the hook plate near the flow electronic sensor is flexible.

6. The automobile pipeline flow detection device according to claim 1, characterized in that: The fixing part includes a fixing plate, an electric control component and a first screw hole. A fixing plate is arranged above the fixing transverse plate, and an electric control component cooperating with the flow electronic sensor is fixedly installed on the fixing plate. A first screw hole symmetrically arranged in front and back is provided on the upper end surface of the fixing transverse plate, and the fixing plate is fixed to the upper end surface of the fixing transverse plate by a first bolt cooperating with the first screw hole.

7. The automobile pipeline flow detection device according to claim 1, characterized in that: The lower end surface of the fixing plate is provided with a hexagonal alignment groove corresponding to the hexagonal protrusions one by one.

8. The automobile pipeline flow detection device according to claim 1, characterized in that: The upper auxiliary part includes a first connecting plate, a pressing groove and a second screw hole. The first connecting plate is slidably connected to the vertical rod. The first connecting plate is composed of a flat plate close to the fixed horizontal plate, a middle inclined plate and a flat plate away from the fixed horizontal plate. A pressing groove located at the first sliding hole is opened on the upper end surface of the fixed horizontal plate. The flat plate close to the fixed horizontal plate is inserted into the pressing groove. A second screw hole is opened on the outer ring wall of the circulation pipe. A second bolt is arranged in the second screw hole. The second bolt passes through the first connecting plate and is inserted into the second screw hole.

9. The automobile pipeline flow detection device according to claim 1, characterized in that: The lower auxiliary part includes a second connecting plate and a slot. The second connecting plate is arranged below the main body tube. A third screw hole is opened on the outer ring wall of the circulation tube. A third bolt is arranged in the third screw hole. The third bolt passes through the second connecting plate and is inserted into the third screw hole. A slot corresponding to the vertical rod is opened on one side wall of the second connecting plate close to the main body tube.

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