Engine air entraining pipeline flow test tool

Abstract

The utility model relates to an engine air-entraining pipeline flow test tool, which comprises an air-entraining pipe main body, a fixed test device is arranged outside the air-entraining pipe main body, the fixed test device comprises a mounting ring and a mounting block, the mounting ring is arranged outside the air-entraining pipe main body, and the mounting block is fixedly arranged outside the mounting ring. According to the engine air entraining pipeline flow test tool, a pull rod is pulled to drive a moving plate and an inserting column to move and compress a spring body, then an air flow meter body is inserted into an air entraining pipe body, an inserting block is inserted into a mounting block, the pull rod is loosened, and the inserting column is inserted into the inserting block under the acting force of the spring body; then the arc-shaped blocks are connected to the outer portions of the air entraining pipe body and the air flow meter body in a sleeving mode and fixed through bolts, air flow data are tested through the air flow meter body, dismounting can be conducted by repeating the operation, and therefore the purpose of facilitating mounting and dismounting is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine test tooling, in particular to an engine air intake pipe flow test tooling. Background Technique

[0002] The engine air intake pipe flow test tooling is an indispensable part in the engine development process. It can simulate the actual engine operating conditions, accurately measure the air flow in the air intake pipe, and provide important data support for engine performance optimization and fault diagnosis.

[0003] However, most of the existing engine air intake pipe flow test toolings are not convenient to install. Special tools are required for both installation and disassembly, and the installation and fixation effects are limited, which easily affects the accuracy of the intake air volume test monitoring data. Therefore, an engine air intake pipe flow test tooling is proposed. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an engine air intake pipe flow test tooling, which has the advantages of being convenient for installation and disassembly, etc., and solves the problem that the existing test tooling is not convenient to install.

[0005] To achieve the above object, the utility model provides the following technical solution: An engine air intake pipe flow test tooling, including an air intake pipe main body, an air flow meter body is movably connected to the outside of the air intake pipe main body, a display is fixedly installed on the top of the air flow meter body, and a fixed test device is arranged on the outside of the air intake pipe main body;

[0006] The fixed test device includes an installation ring, an installation block, a plug-in block, a plug-in column, a spring body, a U-shaped block, shock-absorbing rubber, a fixed block, a hinge block and an arc block. An installation ring is arranged on the outside of the air intake pipe main body, an installation block is fixedly installed on the outside of the installation ring, a plug-in block is fixedly installed on the outside of the installation block, a plug-in column is arranged inside the installation block, a spring body is arranged inside the installation block, a U-shaped block is arranged on the outside of the air intake pipe main body, shock-absorbing rubber is fixedly installed inside the U-shaped block, a fixed block is fixedly installed on the outside of the shock-absorbing rubber, a hinge block is fixedly installed on the front of the fixed block, and an arc block is hinged inside the hinge block.

[0007] Further, the number of the installation rings is two. One installation ring is located on the outside of the air intake pipe main body, and the other installation ring is located on the outside of the air flow meter body. The number of the installation blocks is four, and the four installation blocks are respectively located on the front and back of the two installation rings. The number of the plug-in blocks is two. Plug-in holes adapted to the plug-in blocks are opened inside two of the installation blocks, and the right sides of the two plug-in blocks are fixedly connected to the left sides of the other two installation blocks.

[0008] Furthermore, four slide bars are respectively and fixedly installed inside each of the two mounting blocks. Two moving plates are respectively slidably connected to the outer surfaces of the four slide bars. There are two plugging columns. One side of each of the two plugging columns away from the main air intake pipe is fixedly connected to one side of each of the two moving plates close to the main air intake pipe. Pulling rods are fixedly installed on the outer surfaces of the two moving plates. The front and back of the two pulling rods respectively penetrate the inner front wall and inner rear wall of two of the mounting blocks.

[0009] Furthermore, the two spring bodies are respectively fixedly installed between two of the mounting blocks and the two moving plates. Through holes adapted to the two plugging columns are formed inside the two plugging blocks. A sealing ring is fixedly installed on the left side of the air flow meter body.

[0010] Furthermore, there are four shock-absorbing rubbers, and the four shock-absorbing rubbers are respectively located on the inner bottom wall and inner top wall of the U-shaped block. There are two fixing blocks. The top and bottom of the two fixing blocks are respectively fixedly connected to the opposite sides of the four shock-absorbing rubbers. There are two hinge blocks.

[0011] Furthermore, there are four arc-shaped blocks. The outsides of the four arc-shaped blocks are respectively hinged to the inside of the two hinge blocks. Rubber plates are fixedly installed on the opposite sides of the four arc-shaped blocks. Bolts are threadedly connected to the inside of two of the arc-shaped blocks, and threaded holes adapted to the bolts are formed inside the other two arc-shaped blocks.

[0012] Beneficial effects

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0014] For this engine air intake pipe flow test tooling, pull the pulling rod to drive the moving plate and the plugging column to move, and compress the spring body. Then insert the air flow meter body into the main air intake pipe, and insert the plugging block into the mounting block, and release the pulling rod. Thus, under the action of the spring body, insert the plugging column into the plugging block to initially fix the two devices. Then respectively sleeve the arc-shaped blocks on the outsides of the main air intake pipe and the air flow meter body, and fix them with bolts, so as to perform secondary fixation on the main air intake pipe and the air flow meter body. After fixation, the air flow data inside the main air intake pipe can be measured through the air flow meter body. After completion, repeat the above operations to disassemble the device, so as to achieve the purpose of being convenient for installation and disassembly. Description of the drawings

[0015] Figure 1 It is a front structural schematic diagram of the present utility model;

[0016] Figure 2Schematic diagram of the partial front structure of the present utility model;

[0017] Figure 3 Schematic diagram of the sectional structure of the mounting block of the present utility model;

[0018] Figure 4 Schematic diagram of the side sectional structure of the partial fixing test device of the present utility model.

[0019] In the figure: 1. Main body of the air intake pipe; 2. Main body of the air flow meter; 3. Display; 4. Fixing test device; 401. Mounting ring; 402. Mounting block; 403. Plug-in block; 404. Plug-in post; 405. Main body of the spring; 406. U-shaped block; 407. Shock-absorbing rubber; 408. Fixing block; 409. Hinge block; 410. Arc-shaped block. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , an engine air intake pipe flow test tooling, including a main body of the air intake pipe 1, an air flow meter main body 2 is movably connected to the outside of the main body of the air intake pipe 1, a display 3 is fixedly installed on the top of the air flow meter main body 2, and a fixing test device 4 is arranged on the outside of the main body of the air intake pipe 1;

[0022] The fixing test device 4 includes a mounting ring 401, a mounting block 402, a plug-in block 403, a plug-in post 404, a main body of the spring 405, a U-shaped block 406, shock-absorbing rubber 407, a fixing block 408, a hinge block 409 and an arc-shaped block 410. A mounting ring 401 is arranged on the outside of the main body of the air intake pipe 1, a mounting block 402 is fixedly installed on the outside of the mounting ring 401, a plug-in block 403 is fixedly installed on the outside of the mounting block 402, a plug-in post 404 is arranged inside the mounting block 402, a main body of the spring 405 is arranged inside the mounting block 402, a U-shaped block 406 is arranged on the outside of the main body of the air intake pipe 1, shock-absorbing rubber 407 is fixedly installed inside the U-shaped block 406, a fixing block 408 is fixedly installed on the outside of the shock-absorbing rubber 407, a hinge block 409 is fixedly installed on the front of the fixing block 408, and an arc-shaped block 410 is hinged inside the hinge block 409.

[0023] Specifically, as Figure 1As shown, inside the air flow meter body 2, there are sensors, converters, and circuit boards. The sensor is a hot film sensor, and the hot film sensor contains a thin metal hot wire or a hot film. It is electrically heated to a constant temperature, which is higher than the temperature of the air. When air flows through the hot wire, due to the effect of convective heat transfer, the hot wire will lose some heat, resulting in a temperature drop. To keep the temperature of the hot wire constant, it is necessary to increase the current passing through the hot wire to compensate for the heat loss. This increased current is proportional to the air flow rate. This increased current, or the compensation current, is proportional to the air flow rate and can be output as a signal for measuring the air flow rate. Then, the converter is responsible for converting the data collected by the sensor into a standardized electrical signal and performing voltage / current conversion for easy transmission and analysis. The circuit board usually includes two parts: an analog signal processing circuit and a digital signal processing circuit. The analog signal processing circuit is mainly responsible for signal gain amplification, filtering, and other processing, while the digital signal processing circuit is responsible for the acquisition, conversion, and calculation of digital signals. Finally, the air flow rate and flow data are displayed through the display 3.

[0024] Specifically, as Figure 4 shown, the purpose of setting the shock-absorbing rubber 407 and the rubber plate is that when the engine starts, it will generate shock forces, and this part of the shock forces will be transmitted to the air intake pipe main body 1 and the air flow meter body 2. By setting the shock-absorbing rubber 407 and the rubber plate, this part of the shock forces can be absorbed, thereby reducing the damage to the device caused by the shock forces.

[0025] Specifically, as Figure 4 shown, the materials of the shock-absorbing rubber 407 and the rubber plate are both natural rubber. Natural rubber is mainly composed of rubber hydrocarbon polyisoprene, containing a small amount of protein, moisture, resin acid, sugars, and inorganic salts, etc. Natural rubber has high elasticity, high modulus at a specified elongation, excellent tear resistance and electrical insulation, good wear resistance and drought resistance, good processability, and is easy to bond with other materials.

[0026] Specifically, as Figure 3 shown, the material of the spring body 405 is stainless steel spring wire, which has the advantages of corrosion resistance, strength and rigidity, aesthetics, high temperature resistance, high fatigue strength, good plasticity and toughness, and is suitable for harsh environments.

[0027] During implementation, the operations are carried out in the following steps:

[0028] 1) First, pull the pull rod to drive the moving plate and the insertion column 404 to move, and squeeze the spring body 405;

[0029] 2) Then, insert the left side of the air flow meter body 2 into the right side of the air intake pipe main body 1, and insert the insertion block 403 into the installation block 402;

[0030] 3) Then release the pull rod. Under the action of the spring body 405, fix the two devices, and then sleeve the arc-shaped block 410 outside the two devices.

[0031] 4) Finally, fix the arc-shaped block 410 with bolts, thereby fixing the two devices, and reduce the vibration force generated by the devices through the shock-absorbing rubber 407 and the rubber plate.

[0032] In summary, for this engine intake pipe flow test tooling, pull the pull rod to drive the moving plate and the insertion column 404 to move, compress the spring body 405, then insert the air flow meter body 2 into the intake pipe main body 1, insert the insertion block 403 into the installation block 402, and release the pull rod. Thus, under the action of the spring body 405, insert the insertion column 404 into the insertion block 403 to initially fix the two devices. Then, respectively sleeve the arc-shaped block 410 outside the intake pipe main body 1 and the air flow meter body 2, and fix it with bolts, thereby performing secondary fixation on the intake pipe main body 1 and the air flow meter body 2. After fixation, the air flow data inside the intake pipe main body 1 can be measured through the air flow meter body 2. After completion, repeat the above operations to disassemble the device, thereby achieving the purpose of facilitating installation and disassembly.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine air intake pipe flow test tooling, including an air intake pipe main body (1), characterized in that: An air flow meter body (2) is movably connected to the outside of the air intake pipe main body (1). A display (3) is fixedly installed on the top of the air flow meter body (2). A fixed test device (4) is arranged on the outside of the air intake pipe main body (1). The fixed test device (4) includes a mounting ring (401), a mounting block (402), a plug-in block (403), a plug-in column (404), a spring body (405), a U-shaped block (406), shock-absorbing rubber (407), a fixed block (408), a hinge block (409), and an arc-shaped block (410). A mounting ring (401) is arranged on the outside of the air intake pipe main body (1). A mounting block (402) is fixedly installed on the outside of the mounting ring (401). A plug-in block (403) is fixedly installed on the outside of the mounting block (402). A plug-in column (404) is arranged inside the mounting block (402). A spring body (405) is arranged inside the mounting block (402). A U-shaped block (406) is arranged on the outside of the air intake pipe main body (1). Shock-absorbing rubber (407) is fixedly installed inside the U-shaped block (406). A fixed block (408) is fixedly installed on the outside of the shock-absorbing rubber (407). A hinge block (409) is fixedly installed on the front surface of the fixed block (408). An arc-shaped block (410) is hinged inside the hinge block (409).

2. The flow test tooling for the engine air intake pipeline according to claim 1, characterized in that: The number of the mounting rings (401) is two. One mounting ring (401) is located on the outside of the air intake pipe main body (1), and the other mounting ring (401) is located on the outside of the air flow meter body (2). The number of the mounting blocks (402) is four. The four mounting blocks (402) are respectively located on the front and back of the two mounting rings (401). The number of the plug-in blocks (403) is two. Plug-in holes adapted to the plug-in blocks (403) are formed inside two of the mounting blocks (402). The right sides of the two plug-in blocks (403) are fixedly connected to the left sides of the other two mounting blocks (402).

3. The flow test tooling for the engine air intake pipeline according to claim 1, characterized in that: Four sliding rods are respectively fixedly installed inside two of the mounting blocks (402). The outer surfaces of the four sliding rods are respectively slidably connected to two moving plates. The number of the plug-in columns (404) is two. The sides of the two plug-in columns (404) away from the air intake pipe main body (1) are respectively fixedly connected to the sides of the two moving plates close to the air intake pipe main body (1). Pulling rods are fixedly installed on the outer surfaces of the two moving plates. The front and back of the two pulling rods respectively penetrate the inner front wall and the inner rear wall of two of the mounting blocks (402).

4. A flow test tooling for an engine air intake pipe according to claim 1, characterized in that: The two spring bodies (405) are respectively fixedly installed between two of the mounting blocks (402) and the two moving plates. Through holes adapted to the two plug-in columns (404) are formed inside the two plug-in blocks (403). A sealing ring is fixedly installed on the left side of the air flow meter body (2).

5. The flow test tooling for the engine air intake pipe according to claim 1, wherein: The number of the shock-absorbing rubbers (407) is four, and the four shock-absorbing rubbers (407) are respectively located on the inner bottom wall and the inner top wall of the U-shaped block (406). The number of the fixing blocks (408) is two, and the top and the bottom of the two fixing blocks (408) are respectively fixedly connected with the opposite sides of the four shock-absorbing rubbers (407). The number of the hinge blocks (409) is two.

6. The flow test tooling for the engine air intake pipe according to claim 1, wherein: The number of the arc-shaped blocks (410) is four, and the outsides of the four arc-shaped blocks (410) are respectively hinged to the interiors of the two hinge blocks (409). Rubber plates are fixedly installed on the opposite sides of the four arc-shaped blocks (410). Bolts are threadedly connected to the interiors of two of the four arc-shaped blocks (410), and threaded holes adapted to the bolts are formed in the interiors of the other two arc-shaped blocks (410).

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