Engine end cover air tightness detection device

Abstract

The utility model provides an engine end cover air tightness detection device, which relates to the technical field of engine end cover detection and comprises a supporting mechanism, a power mechanism and a detection mechanism. The detection mechanism comprises a monitoring bin, a pressing block is fixedly installed at the bottom of the monitoring bin, a set of connecting plates are fixedly installed on the outer surface wall of the monitoring bin, a pressure sensor is fixedly installed in the monitoring bin, the outer surface wall of the monitoring bin fixedly communicates with a second air outlet pipe, and a valve plate is fixedly arranged in the second air outlet pipe. A valve shaft is inserted into the valve plate in a penetrating mode, and the valve shaft is inserted into the second air outlet pipe in a penetrating mode. According to the utility model, the outer surface wall of the monitoring bin is fixedly communicated with the second air outlet pipe, and when the air leakage amount of the end cover body is too large and exceeds a preset value of the valve plate, the air pushes the valve plate to rotate, so that the air in the air chamber is discharged through the second air outlet pipe, and potential safety hazards caused by too large air pressure value in the air chamber are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engine end cover detection, in particular to an engine end cover air tightness detection device. Background Art

[0002] The engine hood is the most visible component of a car's body and one of the parts that car buyers frequently inspect. Key requirements for an engine hood include thermal and sound insulation, lightweight construction, and strong rigidity. During production, engine end covers must be tested for airtightness, necessitating the use of an airtightness testing device.

[0003] In the prior art, when a large gas leak occurs in the engine end cover, there is a lack of corresponding emergency measures, which causes the air pressure inside the detection device to be too high, easily causing the end cover to burst, posing a certain safety hazard; and when adjusting the position of the fixed clamp, only the cylinder is used for connection and control, which will cause the clamp to shake greatly when moving and lack stability. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that when a large gas leak occurs in the engine end cover, there is a lack of corresponding emergency measures, which makes the air pressure value inside the detection device too high, which easily causes the end cover to burst and poses certain safety hazards; and when adjusting the position of the fixed clamp, only the cylinder is used for connection and control, which will cause the clamp to shake greatly when moving and lack stability. A device for detecting air tightness of an engine end cover is proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: including: a supporting mechanism, a power mechanism and a detection mechanism; the detection mechanism includes a monitoring chamber, a pressure block is fixedly installed on the bottom of the monitoring chamber, a group of connecting plates are fixedly installed on the outer wall of the monitoring chamber, a pressure sensor is fixedly installed inside the monitoring chamber, the outer wall of the monitoring chamber is fixedly connected to the second air outlet pipe, a valve plate is fixedly arranged inside the second air outlet pipe, a valve shaft is inserted through the interior of the valve plate, the valve shaft is inserted through the interior of the second air outlet pipe, the valve shaft is rotatably connected to the second air outlet pipe, and a block is fixedly installed on the top of the valve shaft.

[0006] Preferably, the support mechanism includes a support base, and a group of sliding rods and a group of supporting rods are fixedly mounted on the top of the support base.

[0007] Preferably, an air chamber is fixedly mounted on the top of the support rod, and an air pump is fixedly mounted on the top of the support base.

[0008] Preferably, the air outlet end of the air pump is fixedly connected to the bottom of the air chamber, and the outer wall of the air chamber is fixedly connected to the first air outlet pipe.

[0009] Preferably, a solenoid valve is fixedly provided on the outer wall of the first air outlet pipe, and an end cover body is provided on the top of the air chamber.

[0010] Preferably, the power mechanism includes a pillar, one end of the pillar is fixedly mounted on a top plate, a cylinder is fixedly mounted on the top of the top plate, and an output end of the cylinder is inserted through the interior of the top plate.

[0011] Preferably, one end of the pillar is fixedly connected to one side of the support base, the output end of the cylinder is fixedly connected to the top of the monitoring chamber, the connecting plate is sleeved on the outer wall of the sliding rod, and the pressure block is arranged on the top of the end cover body.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, a second air outlet pipe is fixedly connected to the outer wall of the monitoring chamber. When the air leakage of the end cover body is too large and exceeds the preset value of the valve plate, the gas will push the valve plate to rotate, thereby discharging the gas inside the air chamber through the second air outlet pipe, avoiding the safety hazard caused by excessive air pressure inside the air chamber.

[0014] 2. In the utility model, the connecting plate is driven to slide on the outer wall of the slide rod by the extension of the cylinder, and the pressure block is pressed on the top of the end cover body to fix the end cover body, thereby increasing the support points of the monitoring chamber and the pressure block, thereby improving the stability of the monitoring chamber when it moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an engine end cover air tightness detection device proposed by the utility model;

[0016] Figure 2 The utility model provides a three-dimensional diagram of a support mechanism in an engine end cover air tightness detection device;

[0017] Figure 3 The utility model provides a three-dimensional diagram of the power mechanism in the engine end cover air tightness detection device;

[0018] Figure 4 The utility model provides a three-dimensional diagram of a detection mechanism in an engine end cover air tightness detection device.

[0019] Legend: 1. Support mechanism; 101. Support base; 102. Slide rod; 103. Support rod; 104. Air chamber; 105. Air pump; 106. First air outlet pipe; 107. Solenoid valve; 108. End cover body; 2. Power mechanism; 201. Pillar; 202. Top plate; 203. Cylinder; 3. Detection mechanism; 301. Monitoring chamber; 302. Pressure block; 303. Connecting plate; 304. Pressure sensor; 305. Second air outlet pipe; 306. Valve plate; 307. Valve shaft; 308. Stop block. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: Figure 1-Figure 4 As shown, the utility model provides an engine end cover air tightness detection device, comprising: a supporting mechanism 1, a power mechanism 2 and a detection mechanism 3; the detection mechanism 3 comprises a monitoring chamber 301, a pressure block 302 is fixedly installed at the bottom of the monitoring chamber 301, a group of connecting plates 303 are fixedly installed on the outer wall of the monitoring chamber 301, a pressure sensor 304 is fixedly installed inside the monitoring chamber 301, the outer wall of the monitoring chamber 301 is fixedly connected to the second air outlet pipe 305, a valve plate 306 is fixedly arranged inside the second air outlet pipe 305, a valve shaft 307 is inserted through the interior of the valve plate 306, the valve shaft 307 is inserted through the interior of the second air outlet pipe 305, the valve shaft 307 is rotatably connected to the second air outlet pipe 305, and a stopper 308 is fixedly installed on the top of the valve shaft 307.

[0023] The effect achieved by the entire embodiment 1 is that a connecting plate 303 is sleeved on the outer wall of a group of slide bars 102, a monitoring chamber 301 is fixedly installed between a group of connecting plates 303, the telescopic end of the cylinder 203 is fixedly connected to the top of the monitoring chamber 301, and a pressure block 302 is fixedly installed at the bottom of the monitoring chamber 301. The connecting plate 303 is driven to slide on the outer wall of the slide bar 102 by the extension and contraction of the cylinder 203, so that the pressure block 302 is pressed on the top of the end cover body 108, so as to fix the end cover body 108; a pressure sensor 304 is fixedly installed inside the monitoring chamber 301, and when the air pump 105 delivers gas to the inside of the air chamber 104 to perform airtightness detection on the end cover body 108, when the end cover body When gas leakage occurs in the body 108, the pressure monitoring value of the pressure sensor 304 will float, thereby judging the airtight state of the engine end cover; finally, the outer wall of the monitoring chamber 301 is fixedly connected to the second air outlet pipe 305, and a valve plate 306 is set inside the second air outlet pipe 305. The valve shaft 307 is rotatably connected inside the valve plate 306, and the valve shaft 307 is inserted into the second air outlet pipe 305. A stopper 308 is fixedly installed on the top of the valve shaft 307. When the amount of gas leakage from the end cover body 108 is too large and exceeds the preset value of the valve plate 306, the gas will push the valve plate 306 to rotate, thereby discharging the gas from the inside of the air chamber 104, avoiding the safety hazard caused by excessive air pressure inside the air chamber 104.

[0024] Example 2: Figure 1-Figure 4 As shown, the support mechanism 1 includes a support base 101, a group of sliding rods 102 and a group of supporting rods 103 are fixedly installed on the top of the support base 101; an air chamber 104 is fixedly installed on the top of the supporting rod 103, and an air pump 105 is fixedly installed on the top of the support base 101; the air outlet end of the air pump 105 is fixedly connected to the bottom of the air chamber 104, and the outer wall of the air chamber 104 is fixedly connected to the first air outlet pipe 106; the outer wall of the first air outlet pipe 106 is fixedly provided with an electromagnetic valve 107, and the top of the air chamber 104 is provided with an end Cover body 108; the power mechanism 2 includes a pillar 201, one end of the pillar 201 is fixedly installed on the top plate 202, the top of the top plate 202 is fixedly installed on the cylinder 203, and the output end of the cylinder 203 is inserted into the interior of the top plate 202; one end of the pillar 201 is fixedly connected to one side of the support base 101, the output end of the cylinder 203 is fixedly connected to the top of the monitoring chamber 301, the connecting plate 303 is sleeved on the outer wall of the slide rod 102, and the pressure block 302 is arranged on the top of the end cover body 108.

[0025] The effect achieved by the entire embodiment 2 is as follows: a group of sliding rods 102 and a group of supporting rods 103 are fixedly installed on the top of the supporting base 101, an air chamber 104 is fixedly installed on the top of the supporting rods 103, an air pump 105 is fixedly installed on the top of the supporting base 101, the output end of the air pump 105 is fixedly connected to the bottom of the air chamber 104, and the air pump 105 is used to transport gas to the inside of the air chamber 104, so as to facilitate the air tightness test of the engine end cover, and the outer wall of the air chamber 104 is fixedly connected to the first air outlet pipe 106, and the outer wall of the first air outlet pipe 106 is fixedly provided with an electromagnetic valve 107. After the test is completed, the gas inside the air chamber 104 is discharged by adjusting the electromagnetic valve 107; then, the end cover body 108 is set on the top of the air chamber 104, and the air pump 105 is fixedly connected to the first air outlet pipe 106. A pillar 201 is fixedly installed on one side of the support base 101, a top plate 202 is fixedly installed at one end of the pillar 201, a cylinder 203 is fixedly installed on the top of the top plate 202, the telescopic end of the cylinder 203 is inserted into the inside of the top plate 202, a connecting plate 303 is sleeved on the outer wall of a group of slide rods 102, a monitoring chamber 301 is fixedly installed between a group of connecting plates 303, the telescopic end of the cylinder 203 is fixedly connected to the top of the monitoring chamber 301, a pressure block 302 is fixedly installed at the bottom of the monitoring chamber 301, and the connecting plate 303 is driven to slide on the outer wall of the slide rod 102 by the extension and contraction of the cylinder 203, so as to press the pressure block 302 on the top of the end cover body 108, fix the end cover body 108, and perform air tightness detection on the end cover body 108.

[0026] Working principle: When the device is in use, first, a set of slide rods 102 and a set of support rods 103 are fixedly installed on the top of the support base 101, an air chamber 104 is fixedly installed on the top of the support rod 103, and an air pump 105 is fixedly installed on the top of the support base 101. The output end of the air pump 105 is fixedly connected to the bottom of the air chamber 104, and the air pump 105 is used to transport gas to the interior of the air chamber 104 to facilitate the air tightness test of the engine end cover. The outer wall of the air chamber 104 is fixedly connected to the first air outlet pipe 106, and the outer wall of the first air outlet pipe 106 is fixedly provided with a solenoid valve 107. After the detection is completed, the gas inside the air chamber 104 is discharged by adjusting the solenoid valve 107; then, the end cover body 108 is set on the top of the air chamber 104, the pillar 201 is fixedly installed on one side of the support base 101, the top plate 202 is fixedly installed on one end of the pillar 201, and the cylinder 203 is fixedly installed on the top of the top plate 202. The telescopic end of the cylinder 203 is inserted into the inside of the top plate 202, and the outer wall of a group of sliding rods 102 is sleeved with a connecting plate 303. The monitoring chamber 301 is fixedly installed between the group of connecting plates 303, and the telescopic end of the cylinder 203 is connected to the monitoring chamber. The top of the monitoring chamber 301 is fixedly connected, and a pressure block 302 is fixedly installed at the bottom of the monitoring chamber 301. The cylinder 203 is extended and retracted to drive the connecting plate 303 to slide on the outer wall of the slide rod 102, so that the pressure block 302 is pressed on the top of the end cover body 108, so as to fix the end cover body 108. Finally, a pressure sensor 304 is fixedly installed inside the monitoring chamber 301. When the air pump 105 delivers gas to the inside of the air chamber 104 to detect the air tightness of the end cover body 108, when the end cover body 108 leaks gas, the pressure monitoring value of the pressure sensor 304 will float, thereby Determine the airtightness of the engine end cover; finally, the outer wall of the monitoring chamber 301 is fixedly connected to the second air outlet pipe 305, a valve plate 306 is set inside the second air outlet pipe 305, and the valve shaft 307 is rotatably connected inside the valve plate 306. The valve shaft 307 is inserted into the second air outlet pipe 305, and a stopper 308 is fixedly installed on the top of the valve shaft 307. When the air leakage of the end cover body 108 is too large and exceeds the preset value of the valve plate 306, the gas will push the valve plate 306 to rotate, thereby discharging the gas from the inside of the air chamber 104, avoiding the safety hazard caused by excessive air pressure inside the air chamber 104.

[0027] The wiring diagram of the air pump 105 and the pressure sensor 304 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the air pump 105 and the pressure sensor 304 are not explained in detail.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An engine end cover air tightness detection device, characterized in that: include: Support mechanism (1), power mechanism (2) and detection mechanism (3); The detection mechanism (3) includes a monitoring chamber (301), a pressure block (302) is fixedly installed at the bottom of the monitoring chamber (301), a group of connecting plates (303) are fixedly installed on the outer wall of the monitoring chamber (301), a pressure sensor (304) is fixedly installed inside the monitoring chamber (301), the outer wall of the monitoring chamber (301) is fixedly connected to the second air outlet pipe (305), a valve plate (306) is fixedly arranged inside the second air outlet pipe (305), a valve shaft (307) is inserted through the inside of the valve plate (306), the valve shaft (307) is inserted through the inside of the second air outlet pipe (305), the valve shaft (307) is rotatably connected to the second air outlet pipe (305), and a stopper (308) is fixedly installed on the top of the valve shaft (307).

2. The engine end cover air tightness detection device according to claim 1, characterized in that: The support mechanism (1) comprises a support base (101), and a group of sliding rods (102) and a group of supporting rods (103) are fixedly mounted on the top of the support base (101).

3. The engine end cover air tightness detection device according to claim 2, characterized in that: An air chamber (104) is fixedly mounted on the top of the support rod (103), and an air pump (105) is fixedly mounted on the top of the support base (101).

4. The engine end cover air tightness detection device according to claim 3, characterized in that: The air outlet end of the air pump (105) is fixedly connected to the bottom of the air chamber (104), and the outer wall of the air chamber (104) is fixedly connected to the first air outlet pipe (106).

5. The engine end cover air tightness detection device according to claim 4, characterized in that: A solenoid valve (107) is fixedly provided on the outer wall of the first air outlet pipe (106), and an end cover body (108) is provided on the top of the air chamber (104).

6. The engine end cover air tightness detection device according to claim 5, characterized in that: The power mechanism (2) comprises a pillar (201), one end of the pillar (201) is fixedly mounted on a top plate (202), a cylinder (203) is fixedly mounted on the top of the top plate (202), and an output end of the cylinder (203) is inserted through the interior of the top plate (202).

7. The engine end cover air tightness detection device according to claim 6, characterized in that: One end of the pillar (201) is fixedly connected to one side of the support base (101), the output end of the cylinder (203) is fixedly connected to the top of the monitoring chamber (301), the connecting plate (303) is sleeved on the outer wall of the sliding rod (102), and the pressing block (302) is arranged on the top of the end cover body (108).

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