Air leakage measuring instrument of engine cylinder

Abstract

The utility model relates to the technical field of automobile maintenance and detection, and discloses an engine cylinder air leakage measuring instrument which comprises a main body, a pressure regulator used for regulation is clamped on one side of the main body, an air guide pipe is clamped on one side of the pressure regulator, a positioning ring used for protection is arranged at the top of the main body, and a flexible rubber hose used for conveying is arranged on the other side of the main body. And an adapter is clamped on one side of the flexible rubber hose. According to the engine cylinder air leakage measuring instrument, through cooperative arrangement of the main body, the pressure regulator, the air guide pipe, the positioning ring and the flexible rubber hose, the whole device can be more compact in structure and convenient to carry and operate, the internal pressure and the monitored value can be accurately known, the display assembly is effectively protected through the positioning ring, and the measurement accuracy is improved. The device can be folded and stored under the condition that a user does not use the device, external interference is prevented, through cooperative arrangement of the adapter and the clamping ring, the numerical value of the device during operation detection can be more accurate, and external limiting and fixing are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile maintenance and detection, in particular to an engine cylinder air leakage measuring instrument. Background Art

[0002] The engine is the heart of the car, and its performance directly affects the vehicle's power output and fuel economy. The cylinder is one of the key components of the engine, and its sealing performance is directly related to the overall efficiency of the engine. During long-term use, the cylinder may cause the sealing performance to deteriorate due to wear, aging and other reasons, thereby causing air leakage. Engine cylinder leakage will not only reduce the engine's output power and increase fuel consumption, but also cause excessive exhaust emissions and affect environmental performance.

[0003] Chinese patent announcement number CN203881380U discloses an engine leakage measuring instrument, including a shell, a flow channel is arranged in the middle of the shell, a spiral blade is arranged at the head end of the flow channel, an exhaust end is arranged at the tail of the flow channel, a diversion section is arranged in the middle of the flow channel, the diversion section includes a main flow channel and a plurality of auxiliary flow channels, a ring array of auxiliary flow channels is arranged around the main flow channel, a flow integrator is arranged in the middle of the main flow channel, a fluid inlet end of the flow integrator is connected with the main flow channel, a mounting bayonet for auxiliary elements is arranged on the auxiliary flow channel, a piezoelectric crystal sensor, a temperature sensor and a fluid pressure sensor are respectively installed on the plurality of mounting bayonet of the diversion section, the utility model measures the leakage by measuring the rotational precession frequency of the vortex flow, the utility model has a simple structure of the engine crankcase leakage measuring instrument, measurement and calculation can realize an integrated structure, and the range ratio can be as high as fifty.

[0004] However, the utility model has the following problems when actually used:

[0005] The utility model has a complex structural design and a large size when the overall device is used. It is not convenient to carry and operate on site. The sealing between the connecting parts is poor, gas leakage is likely to occur, affecting the measurement results. It is difficult to maintain and clean, and it is difficult to ensure stability and reliability for long-term use. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides an engine cylinder leakage measuring instrument, which solves the problems in the prior art:

[0008] The utility model has a complex structural design and a large size when the overall device is used. It is not convenient to carry and operate on site. The sealing between the connecting parts is poor, gas leakage is likely to occur, affecting the measurement results. It is difficult to maintain and clean, and it is difficult to ensure stability and reliability for long-term use.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: an engine cylinder leakage measuring instrument, including a main body, a pressure regulator for adjustment is clamped on one side of the main body, an air duct is clamped on one side of the pressure regulator, a positioning ring for protection is provided on the top of the main body, a soft rubber tube for transportation is provided on the other side of the main body, an adapter is clamped on one side of the soft rubber tube, and a clamping ring for preventing leakage is sleeved on the outer wall of the adapter.

[0011] Furthermore, an intake pressure gauge for displaying pressure values ​​is clamped on the top of the main body, a measuring pressure gauge for monitoring pressure changes is clamped on the top of the main body, and a through pipe for docking is fixedly connected to the other side of the main body.

[0012] Furthermore, an operating ring for adjustment is clamped on one side of the voltage regulator, and an air inlet pipe is fixedly installed on the top of the voltage regulator.

[0013] Furthermore, a friction ring is clamped on the outer wall of the air guide tube, and a thread for installation is provided on one side of the air guide tube.

[0014] Furthermore, the inner wall of the positioning ring is clamped with the outer wall of the intake pressure gauge, the top of the positioning ring is fixedly connected with an auxiliary part for folding, and the top of the auxiliary part is clamped with a sealing cover for protection.

[0015] Furthermore, a reinforcement ring for preventing leakage is fixedly connected to one side of the soft rubber tube, and the inner wall of the reinforcement ring is clamped with the outer wall of the through tube.

[0016] Furthermore, a pressing rod for preventing loosening is threadedly connected to the top of the clamping ring, and additional plates for positioning are fixedly connected to both sides of the clamping ring.

[0017] Furthermore, a threaded rod is inserted into the interior of the additional plate, and a nut for fixing is clamped on the outer wall of the threaded rod.

[0018] (III) Beneficial effects

[0019] The utility model provides an engine cylinder leakage measuring instrument, which has the following beneficial effects:

[0020] The engine cylinder leakage measuring instrument, through the coordinated arrangement of the main body, the pressure regulator, the air guide tube, the positioning ring and the soft rubber tube, can make the entire device structure more compact, easy to carry and operate, and can accurately understand the internal pressure and the monitored values. The positioning ring effectively protects the display component to ensure that the user can fold and store it when not in use to prevent external interference. The coordinated arrangement of the adapter and the clamping ring can make the device more accurate during operation and detection, realize external limit fixation, effectively prevent gas leakage at the docking position, facilitate disassembly and assembly of parts, ensure that users can perform regular maintenance and cleaning, and further improve overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the soft rubber hose of the utility model;

[0024] Figure 4 This is a schematic diagram of the explosion structure of the clamping ring of the utility model.

[0025] In the figure: 1. main body; 2. pressure regulator; 3. air guide tube; 4. positioning ring; 5. soft rubber tube; 6. adapter; 7. clamping ring; 8. intake pressure gauge; 9. measuring pressure gauge; 10. through pipe; 11. operating ring; 12. intake pipe; 13. friction ring; 14. auxiliary parts; 15. sealing cover; 16. reinforcement ring; 17. pressing rod; 18. additional plate; 19. threaded rod; 20. nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 4 An embodiment of the utility model provides an engine cylinder leakage measuring instrument, which is used to measure engine cylinder leakage. In this embodiment, the structure of the cylinder leakage measuring instrument is improved to improve the accuracy and convenience of measurement.

[0028] Embodiment 1:

[0029] See also Figures 1 to 4In order to better check the pressure value and changes of the internal gas, a device body 1, a positioning ring 4 and a soft rubber tube 5 are provided;

[0030] The utility model comprises a main body 1, a positioning ring 4 for protection is provided on the top of the main body 1, a soft rubber tube 5 for transportation is provided on the other side of the main body 1, an intake pressure gauge 8 for displaying pressure value is clamped on the top of the main body 1, a measuring pressure gauge 9 for monitoring pressure change is clamped on the top of the main body 1, a through pipe 10 for docking is fixedly connected on the other side of the main body 1, the inner wall of the positioning ring 4 is clamped on the outer wall of the intake pressure gauge 8, an auxiliary part 14 for folding is fixedly connected on the top of the positioning ring 4, a sealing cover 15 for protection is clamped on the top of the auxiliary part 14, a reinforcement ring 16 for preventing leakage is fixedly connected on one side of the soft rubber tube 5, and the inner wall of the reinforcement ring 16 is clamped on the outer wall of the through pipe 10, so that the through pipe 10 is fixedly connected to the inner wall of the reinforcement ring 16. By setting the intake pressure gauge 8 and the measuring pressure gauge 9, the pressure change in the cylinder can be monitored in real time to ensure the accuracy of the measurement, making it more convenient for users to operate. The setting of the through pipe 10 is to better position it with the reinforcement ring 16 connected to the other side, which is convenient for installation and disassembly between parts, so that the gas inside the soft rubber tube 5 can be smoothly transported. The setting of the auxiliary part 14 and the sealing cover 15 is to facilitate the folding operation of the sealing cover 15, increase the mobility, protect the intake pressure gauge 8 from the influence of the external environment, and extend the service life of the equipment. The setting of the reinforcement ring 16 ensures that the connection between the soft rubber tube 5 and the through pipe 10 is firm to prevent gas leakage.

[0031] Embodiment 2:

[0032] In order to facilitate the user to manually adjust the internal air pressure, a pressure regulator 2 and an air guide tube 3 are provided;

[0033] A voltage regulator 2 for adjustment is clamped on one side of the main body 1, an air pipe 3 is clamped on one side of the voltage regulator 2, an operating ring 11 for adjustment is clamped on one side of the voltage regulator 2, an air inlet pipe 12 is fixedly installed on the top of the voltage regulator 2, a friction ring 13 is clamped on the outer wall of the air pipe 3, and a thread for installation is provided on one side of the air pipe 3. Therefore, through the setting of the operating ring 11, it is ensured that the user can conveniently adjust the air pressure so that the air pressure is stable during the measurement process. The setting of the air inlet pipe 12 is to introduce high-pressure gas into the voltage regulator 2 so that the high-pressure gas can be reduced to a low pressure level suitable for use through the mechanism inside the voltage regulator 2. Through the setting of the friction ring 13, the friction between the air pipe 3 and the connecting parts is increased to prevent loosening during use.

[0034] Embodiment three:

[0035] In order to prevent looseness at the docking position and increase the stability of the device, a device adapter 6 and a clamping ring 7 are provided;

[0036] An adapter 6 is clamped on one side of the soft rubber tube 5, and a clamping ring 7 for preventing leakage is sleeved on the outer wall of the adapter 6. A pressing rod 17 for preventing loosening is threadedly connected to the top of the clamping ring 7. Additional plates 18 for positioning are fixedly connected on both sides of the clamping ring 7. A threaded rod 19 is inserted into the interior of the additional plate 18, and a nut 20 for fixing is clamped on the outer wall of the threaded rod 19. Therefore, by using the pressing rod 17 and the additional plate 18 in coordination, the clamping ring 7 can be firmly fixed on the adapter 6 to avoid displacement during the measurement process. By combining the threaded rod 19 and the nut 20, the additional plate 18 can be firmly fixed on the clamping ring 7, thereby ensuring the structural stability and reliability of the entire measuring instrument.

[0037] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0038] In the utility model, the working steps of the device are as follows:

[0039] First, connect the intake pipe 12 to the air source, adjust the pressure to the required level through the operating ring 11, connect the adapter 6 to the corresponding interface of the engine cylinder to be tested, ensure that the clamping ring 7 is tightened and leak-free, observe the readings of the intake pressure gauge 8 and the measuring pressure gauge 9, record and analyze the data to determine the cylinder leakage situation, and after the measurement is completed, turn off the air source and disassemble the components of the measuring instrument for cleaning and maintenance.

[0040] 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. An engine cylinder leakage measuring instrument, comprising a main body (1), characterized in that: A pressure regulator (2) for adjustment is clamped on one side of the main body (1), an air guide tube (3) is clamped on one side of the pressure regulator (2), a positioning ring (4) for protection is provided on the top of the main body (1), a soft rubber tube (5) for transportation is provided on the other side of the main body (1), an adapter (6) is clamped on one side of the soft rubber tube (5), and a clamping ring (7) for preventing leakage is sleeved on the outer wall of the adapter (6).

2. The engine cylinder leakage measuring instrument according to claim 1, characterized in that: An intake pressure gauge (8) for displaying pressure values ​​is clamped on the top of the main body (1), a measuring pressure gauge (9) for monitoring pressure changes is clamped on the top of the main body (1), and a through pipe (10) for docking is fixedly connected to the other side of the main body (1).

3. The engine cylinder leakage measuring instrument according to claim 1, characterized in that: An operating ring (11) for adjustment is clamped on one side of the voltage regulator (2), and an air inlet pipe (12) is fixedly mounted on the top of the voltage regulator (2).

4. The engine cylinder leakage measuring instrument according to claim 1, characterized in that: The outer wall of the air guide tube (3) is clamped with a friction ring (13), and one side of the air guide tube (3) is provided with a thread for installation.

5. The engine cylinder leakage measuring instrument according to claim 2, characterized in that: The inner wall of the positioning ring (4) is clamped with the outer wall of the intake pressure gauge (8), the top of the positioning ring (4) is fixedly connected with an auxiliary part (14) for folding, and the top of the auxiliary part (14) is clamped with a sealing cover (15) for protection.

6. The engine cylinder leakage measuring instrument according to claim 2, characterized in that: A reinforcement ring (16) for preventing leakage is fixedly connected to one side of the soft rubber tube (5), and the inner wall of the reinforcement ring (16) is clamped with the outer wall of the through pipe (10).

7. The engine cylinder leakage measuring instrument according to claim 1, characterized in that: The top of the clamping ring (7) is threadedly connected with a pressing rod (17) for preventing loosening, and both sides of the clamping ring (7) are fixedly connected with additional plates (18) for positioning.

8. The engine cylinder leakage measuring instrument according to claim 7, characterized in that: A threaded rod (19) is inserted into the interior of the additional plate (18), and a nut (20) for fixing is clamped on the outer wall of the threaded rod (19).

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