Rain test sealing performance detection equipment

Abstract

The utility model relates to the technical field of sealing performance detection, and more specifically relates to a rain test sealing performance detection device comprising a rain area comprising a rain channel and a spraying system arranged in the rain channel; the air drying area comprises an air drying channel and a fan room with the air outlet end facing the air drying channel. And the air return area comprises an air return channel communicating with the raining channel and the air drying channel and an air return pipe with one end communicating with the air return channel, and the other end of the air return pipe communicates with the air inlet end of the fan room. According to the utility model, the problem that the ground is slippery due to water mist overflow at the equipment inlet of the rain test sealing performance detection equipment can be reduced, effective air volume and air pressure buffer balance is carried out on strong wind in the air drying area, airflow can be buffered, shunted and recycled through the air return area, and power waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing detection, and more specifically to a rain test sealing detection equipment. Background Art

[0002] In automobile manufacturing plants, after the vehicle rolls off the assembly line, it is necessary to conduct a vehicle rain sealing test. Through the rain test on the car, the sealing performance, drainage performance and water resistance of the car body accessories can be tested. The whole vehicle rain test is to place the whole vehicle in the rain to simulate the rain environment in actual use, test the rainproof performance of the whole vehicle, and confirm that there will be no water leakage problems. At present, the vehicle rain sealing test equipment is mainly a rain room. The rain room is usually divided into a rain area and a wind drying area. There are pipes and nozzles inside the rain area, which can spray high-pressure water mist to simulate the actual rain environment. This is the main area for automobile rain sealing testing; and the wind drying area is mainly composed of a fan and air duct system, which can blow out strong wind to dry the water droplets on the car body for post-process inspection.

[0003] Since strong wind blows out from the air-drying area, due to the high wind pressure, it can only be discharged to the two ends of the shower room. The strong wind pressure passes through the shower area and blows out from the entrance of the shower room. While the large amount of lost airflow wastes power output, the large amount of airflow also carries a large amount of water mist and floats out from the entrance. This causes the ground at the entrance of the shower area to be slippery, which is very likely to cause safety accidents such as pedestrians slipping. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the current rain test equipment, that is, the strong wind pressure easily carries a large amount of water mist and blows it out from the entrance, which wastes power output and causes the ground at the entrance to be slippery and easily causes safety accidents, and to provide a rain test sealing detection equipment. The utility model can reduce the problem of the rain test sealing detection equipment causing the ground to be slippery due to the overflow of water mist at the entrance of the equipment, and at the same time, the strong wind in the wind drying area is effectively buffered and balanced in terms of air volume and wind pressure, and the airflow can be buffered and diverted for reuse through the return air area, reducing power waste.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A rain test sealing detection equipment, comprising:

[0007] The shower area includes a shower channel and a sprinkler system arranged in the shower channel;

[0008] Air drying area, including air drying passage and fan room with air outlet facing the air drying passage;

[0009] The return air area includes a return air channel connected to the rain channel and the air drying channel respectively, and a return air duct connected to the return air channel at one end, and the other end of the return air duct is connected to the air inlet end of the ventilation room.

[0010] The utility model forms an airflow buffer and pressure reduction space by adding a return air zone between the shower area and the air-drying area. The fan room generates a high-pressure airflow into the air-drying channel, which can blow out strong winds to dry the water droplets on the object to be tested, which is convenient for post-process inspection. The air-drying channel is filled with strong winds. Due to the high wind pressure, it can only be discharged to the two ends of the air-drying channel. In addition, the object to be tested at the test site generally needs to continuously pass through the shower area and the air-drying area. Therefore, the inlet of the shower channel and the outlet of the air-drying channel are both in a normally open state. The utility model forms an airflow buffer space by connecting the return air zone to the return air channel of the air-drying channel. Since the other end of the return air duct in the return air channel is connected to the air inlet end of the ventilation room, negative pressure is formed at the air inlet end of the fan room. The negative pressure can draw the airflow passing through the return air channel back to the fan room through the return air duct, forming an air flow circulation. On the one hand, such partial high-pressure airflow forms a circulating airflow, which can reduce the waste of power output in the fan room; on the other hand, the air flow buffering and diversion reuse after the return air area can reduce the air pressure and flow rate entering the shower channel from the return air channel, thereby reducing the overflow airflow at the inlet of the shower channel, and thus greatly reducing the amount of water mist that can be brought out.

[0011] Furthermore, it also includes a wind curtain system, which includes a wind curtain machine installed at the entrance of the shower channel, and the wind curtain plane formed by the wind curtain machine covers the entrance of the shower channel. The wind curtain machine is set to form a wind curtain to shield the spilled water mist. Since the entrance of the shower channel is mostly in a normally open state, the wind curtain machine does not affect the passage of objects and people in and out. The wind curtain machine drives the strong airflow generated by the crossflow or centrifugal wind wheel through a high-speed motor to form an "invisible door curtain", which divides the inside and outside of the shower channel into two independent areas. The spilled water mist is not easy to pass through the wind curtain and drift to the entrance, thereby increasing the mist interception capacity.

[0012] Furthermore, the air curtain system also includes a partition installed at the entrance of the rain channel, and a conformable channel for the test object to pass through is opened on the partition, and the wind curtain plane covers the conformable channel. The partition can be a door-shaped PVC board, and the shape of the conformable channel can be designed to be similar to the shape of the test object, so that the test object can pass through it, limiting the ventilation area of ​​the inlet channel, so that the effect of isolating water vapor is the best. A stainless steel frame can be embedded in the PVC board to play an anti-corrosion and fixing role.

[0013] Furthermore, the fan room includes an air inlet chamber arranged at the top of the air drying channel, and a fan arranged at the top of the air drying channel and connected to the air inlet chamber and the air drying channel respectively. Because the disturbance of the air flow caused by the fan after starting up leads to negative pressure in the air inlet chamber, the air in the air drying channel can be drawn back to the air inlet chamber through the return air duct, so that both high-pressure blowing and negative-pressure exhaust can be achieved by relying solely on the function of the fan, thus realizing the circulation of air flow.

[0014] Furthermore, an air supply port connected to the outside is also provided on the inner wall of the air inlet chamber. When different fan powers provide different air drying airflows, the air in the air inlet chamber is connected to the outside and can be better used to adjust the air intake pressure of the fan.

[0015] Furthermore, a wind pressure sensor is provided at the inlet of the shower channel, and a humidity sensor is provided in the air inlet chamber. The wind pressure sensor and the humidity sensor are respectively connected to an external controller.

[0016] Furthermore, an electric valve for controlling the opening of the air supply port is provided on the air supply port, and the electric valve is connected to the controller.

[0017] In order to minimize the pressure of the spray out from the entrance of the shower channel, so that the water vapor is also less, a pressure sensor is arranged at the entrance of the shower channel to monitor the air flow pressure; because the air inlet chamber is negative pressure, the wind with water in the shower area will be blown back to the air inlet chamber through the return air area, affecting the operation of the fan and even affecting the normal spraying in the shower area, so it is necessary to monitor the humidity of the air inlet chamber. The air inlet chamber cannot be too wet. There is also a humidity sensor in the air inlet chamber to control the humidity of the fan room. On the basis of arranging the wind pressure sensor and the humidity sensor, the controller monitors the values ​​of the wind pressure sensor and the humidity sensor in real time, and the controller can adjust the opening and closing degree of the electric valve of the air supply port connected to the outside to achieve the best return air control. For example, if the pressure of the wind pressure sensor is measured to be too large, it means that the water vapor is overflowing, and the opening and closing degree of the electric valve of the air supply port should be reduced; if the humidity of the humidity sensor is measured to be too large, it means that the humidity of the air inlet chamber is too high, and the opening and closing degree of the electric valve of the air supply port should be expanded to achieve the best return air control.

[0018] Furthermore, the spray system includes a plurality of spray heads evenly arranged on the inner wall of the shower channel, and pipes respectively connected to the plurality of spray heads.

[0019] Furthermore, it also includes an anechoic room, which is connected to the outlet of the air-drying area, and the inner wall of the anechoic room is attached with sound-absorbing cotton and perforated plates in sequence. Since the test object moves from the raining area, the return air area to the air-drying area in sequence, and the air in the air-drying area blows downward, the wind pressure and wind noise are very large, which has an impact on the inspection workers on the right side of the air-drying area, so an anechoic room is added. The inner wall of the anechoic room is attached with sound-absorbing cotton and perforated plates, which can effectively reduce the noise and reduce the noise pollution of the inspection workers outside the anechoic room.

[0020] Furthermore, it also includes a plate chain conveyor line installed on the ground and used to convey the test object, and the plate chain conveyor line sequentially passes through the rain channel, the return air channel, the air drying channel and the anechoic room. The plate chain conveyor line can be used as an automatic conveyor belt for the test object, which can improve the detection efficiency, realize continuous detection without stopping the line, and improve the detection efficiency and automation level.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model forms an air flow buffering and pressure reduction space by adding a return air zone between the shower area and the air-drying area. Since the other end of the return air duct in the return air channel is connected to the air inlet end of the ventilation room, a negative pressure is formed at the air inlet end of the fan room. The negative pressure can draw the airflow passing through the return air channel back to the fan room through the return air duct, forming an air flow circulation. On the one hand, the formation of circulating airflow by part of the high-pressure airflow can reduce the waste of power output of the fan room; on the other hand, the air flow buffering and diversion and reuse after passing through the return air zone can reduce the air pressure and flow rate entering the shower channel from the return air channel, thereby reducing the overflow airflow at the inlet of the shower channel, and thus greatly reducing the amount of water mist that can be brought out.

[0023] The utility model can reduce the problem of slippery ground caused by water mist overflow at the entrance of the rain test sealing detection equipment, and at the same time, buffer and balance the effective air volume and wind pressure of the strong wind in the air drying area. The airflow can be buffered and diverted for reuse through the return air area, reducing power waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the traditional rain test sealing detection equipment in the utility model (the arrow direction in the figure is the airflow direction);

[0025] Figure 2 The overall structure diagram of Example 1 of the utility model (the direction of the arrow in the figure is the direction of airflow);

[0026] Figure 3 It is a structural schematic diagram of the wind curtain system in the utility model;

[0027] Figure 4 This is a structural diagram of the stroke room of the utility model;

[0028] Figure 5 The schematic diagram of the arrangement structure of the anechoic room and the plate chain conveyor line in the utility model (the direction of the arrow in the figure is the direction of the airflow);

[0029] Figure 6 It is a cross-sectional view of the inner wall of the anechoic room in the utility model.

[0030] The illustrations are as follows:

[0031] 1-shower area, 11-shower channel, 12-spray system, 2-air drying area, 21-air drying channel, 22-fan room, 221-air inlet chamber, 222-fan, 223-air supply port, 3-return air area, 31-return air channel, 32-return air duct, 4-air curtain system, 41-air curtain machine, 42-partition, 5-anechoic room, 51-sound-absorbing cotton, 52-punching plate, 6-plate chain conveyor line. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figure 1 As shown, the traditional rain test sealing detection equipment is usually divided into a rain area 1 and a wind-drying area 2. The rain area 1 has pipes and nozzles inside, which can spray high-pressure water mist to simulate the actual rain environment. This is the main area for automobile rain sealing detection; and the wind-drying area 2 is mainly composed of a fan 222 and an air duct system, which can blow out strong winds to dry the water droplets on the car body, which is convenient for post-process inspection. The test site generally needs to pass through the rain area 1 and the wind-drying area 2 continuously, so the inlet of the rain channel 11 and the outlet of the wind-drying channel 21 are both in a normally open state. Since the wind-drying area 2 blows out strong winds, due to the high wind pressure, it can only be discharged to the two ends of the rain room. The strong wind pressure passes through the rain area 1 and blows out from the entrance of the rain room. While the large amount of airflow lost wastes the power output, a large amount of airflow also carries a large amount of water mist and floats out from the entrance. This causes the ground at the entrance of the rain area 1 to be slippery, which is very likely to cause safety accidents such as pedestrians slipping.

[0036] This embodiment is applied to the sealing detection of vehicles, such as Figure 2As shown, a rain test sealing detection equipment is provided, comprising:

[0037] The shower area 1 includes a shower channel 11 and a spray system 12 arranged in the shower channel 11;

[0038] The air drying area 2 includes an air drying passage 21 and a fan room 22 with an air outlet facing the air drying passage 21;

[0039] The return air area 3 includes a return air channel 31 connected to the rain channel 11 and the air drying channel 21 respectively, and a return air duct 32 connected to the return air channel 31 at one end, and the other end of the return air duct 32 is connected to the air inlet end of the ventilation room 22.

[0040] like Figure 2 and Figure 3 As shown, the present embodiment further includes an air curtain system 4, which includes an air curtain machine 41 installed at the entrance of the shower channel 11, and the air curtain plane formed by the air curtain machine 41 covers the entrance of the shower channel 11. The air curtain machine 41 is arranged to form an air curtain for shielding the overflowing water mist. Since the entrance of the shower channel 11 is mostly in a normally open state, the air curtain machine 41 does not affect the passage of objects and personnel in and out. The air curtain machine 41 drives the strong airflow generated by the crossflow or centrifugal wind wheel through a high-speed motor to form an "invisible door curtain", which divides the inside and outside of the shower channel 11 into two independent areas, and the overflowing water mist is not easy to pass through the air curtain and drift to the entrance, thereby increasing the mist interception capacity.

[0041] like Figure 3 As shown, the air curtain system 4 further includes a partition plate 42 installed at the entrance of the rain shower channel 11, a conformable channel for vehicles to pass through is opened on the partition plate 42, and the wind curtain plane covers the conformable channel.

[0042] In this embodiment, the partition 42 is made of a door-shaped PVC board, and the shape of the contoured channel can be designed to be similar to the appearance of the vehicle, so that the vehicle can pass through it, limiting the ventilation area of ​​the inlet channel. This method has the best effect of isolating water vapor. A stainless steel frame can be embedded in the PVC board to play an anti-corrosion and fixing role.

[0043] like Figure 4 As shown, the fan room 22 includes an air inlet chamber 221 disposed at the top of the air drying channel 21, and a fan 222 disposed at the top of the air drying channel 21 and respectively connected to the air inlet chamber 221 and the air drying channel 21. Because the fan 222 causes disturbance changes in the air flow after being turned on, resulting in negative pressure in the air inlet chamber 221, the air in the air drying channel 21 can be drawn back to the air inlet chamber 221 through the return air duct 32, so that both high-pressure blowing and negative-pressure exhaust can be achieved by relying solely on the function of the fan 222, thereby realizing the circulation of air flow.

[0044] like Figure 4As shown, an air supply port 223 connected to the outside is also provided on the inner wall of the air inlet chamber 221. When different powers of the fans 222 provide different air drying airflows, the air in the air inlet chamber 221 is connected to the outside and can be better used to adjust the air intake pressure of the fan 222.

[0045] In this embodiment, the number of the air supply ports 223 is two.

[0046] like Figure 2 As shown, the spray system 12 includes a plurality of spray heads evenly arranged on the inner wall of the shower channel 11, and pipes respectively connected to the plurality of spray heads.

[0047] The advantage of this embodiment is that an airflow buffer and pressure reduction space is formed by adding a return air zone 3 between the shower area 1 and the air-drying area 2. The fan room 22 generates a high-pressure airflow into the air-drying channel 21, which can blow out strong winds to dry the water droplets on the vehicle, which is convenient for post-process inspection. The air-drying channel 21 is filled with strong winds. Due to the high wind pressure, it can only be discharged to the two ends of the air-drying channel 21. In addition, the vehicles at the test site generally need to continuously pass through the shower area 1 and the air-drying area 2. Therefore, the inlet of the shower channel 11 and the outlet of the air-drying channel 21 are both in a normally open state. In this embodiment, the return air zone 3 is connected to the return air channel 31 of the air-drying channel 21 to form an airflow buffer space. Since the other end of the return air duct 32 in the return air channel 31 is connected to the air inlet end of the ventilation room 22, a negative pressure is formed at the air inlet end of the fan room 22. The negative pressure can draw the airflow passing through the return air channel 31 back to the fan room 22 through the return air duct 32, thereby forming an air flow circulation. On the one hand, the formation of a circulating airflow by part of the high-pressure airflow can reduce the waste of power output of the fan room 22; on the other hand, the air pressure entering the shower channel 11 from the return air channel 31 can be reduced and the flow rate can be reduced after the air flow is buffered and diverted for reuse in the return air area 3, thereby reducing the overflow airflow at the inlet of the shower channel 11, and thus the amount of water mist that can be brought out is greatly reduced.

[0048] Example 2

[0049] This embodiment is similar to Embodiment 1, except that:

[0050] In this embodiment, a wind pressure sensor is further provided at the inlet of the shower channel 11, and a humidity sensor is further provided in the air inlet chamber 221. The wind pressure sensor and the humidity sensor are respectively connected to an external controller.

[0051] In this embodiment, an electric valve for controlling the opening of the air supply port 223 is provided on the air supply port 223, and the electric valve is connected to the controller.

[0052] In order to minimize the pressure of the shower channel 11 from the inlet, so that the water vapor carried is also less, a pressure sensor is arranged at the inlet of the shower channel 11 to monitor the air flow pressure; since the air inlet chamber 221 is under negative pressure, the wind with water in the shower area 1 will be blown back to the air inlet chamber 221 through the return air area 3, affecting the operation of the fan 222 and even affecting the normal spraying of the shower area 1, so it is necessary to monitor the humidity of the air inlet chamber 221, and the air inlet chamber 221 cannot be too wet. A humidity sensor is also arranged in the air inlet chamber 221 to control the humidity of the fan room 22. On the basis of arranging the wind pressure sensor and the humidity sensor, the values ​​of the wind pressure sensor and the humidity sensor are monitored in real time by the controller, and the controller can adjust the opening and closing degree of the electric valve of the air supply port 223 connected to the outside to achieve the best return air control. For example, if the pressure measured by the wind pressure sensor is too high, it means that water vapor is overflowing, and the opening and closing degree of the electric valve of the air supply port 223 should be reduced; if the humidity measured by the humidity sensor is too high, it means that the humidity in the air inlet chamber 221 is too high, and the opening and closing degree of the electric valve of the air supply port 223 should be expanded to achieve the best return air control.

[0053] The other structures and principles of this embodiment are the same as those of Embodiment 1.

[0054] Example 3

[0055] This embodiment is similar to Embodiment 2, except that in this embodiment:

[0056] like Figure 5 As shown, it also includes a anechoic room 5, and the anechoic room 5 is connected to the outlet of the ventilation and drying area 2;

[0057] like Figure 6 As shown, sound-absorbing cotton 51 and a punching plate 52 are sequentially attached to the inner wall of the anechoic room 5.

[0058] Since the vehicle moves in the direction of from the raining area 1, the return air area 3 to the air drying area 2 in sequence, and the air in the air drying area 2 blows downward, the wind pressure and wind noise are very large, which has an impact on the inspection workers on the right side of the air drying area 2, so a soundproof room 5 is added. The inner wall of the soundproof room 5 is attached with sound-absorbing cotton 51 and punching plate 52, which can effectively reduce noise and reduce the noise pollution of the inspection workers outside the soundproof room 5.

[0059] The other structures and principles of this embodiment are the same as those of Embodiment 2.

[0060] Example 4

[0061] This embodiment is similar to Embodiment 3, except that, in this embodiment:

[0062] like Figure 5As shown, it also includes a plate chain conveyor line 6 installed on the ground and used to convey vehicles, and the plate chain conveyor line 6 sequentially passes through the rain channel 11, the return air channel 31, the air drying channel 21 and the anechoic room 5. The plate chain conveyor line 6 can be used as an automatic conveyor belt for vehicles, which can improve the detection efficiency, realize continuous detection without stopping the line, and improve the detection efficiency and automation.

[0063] The other structures and principles of this embodiment are the same as those of Embodiment 3.

[0064] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A rain test sealing detection equipment, characterized in that: include: A shower area (1) comprises a shower channel (11) and a spray system (12) arranged in the shower channel (11); An air drying area (2), comprising an air drying passage (21), and a fan room (22) with an air outlet facing the air drying passage (21); The return air zone (3) comprises a return air channel (31) respectively connected to the shower channel (11) and the air drying channel (21), and a return air duct (32) one end of which is connected to the return air channel (31), and the other end of the return air duct (32) is connected to the air inlet end of the fan room (22).

2. The rain test sealing detection equipment according to claim 1, characterized in that: It also comprises an air curtain system (4), the air curtain system (4) comprising an air curtain machine (41) installed at the entrance of the shower channel (11), the air curtain plane formed by the air curtain machine (41) covering the entrance of the shower channel (11).

3. The rain test sealing detection equipment according to claim 2, characterized in that: The wind curtain system (4) further comprises a partition (42) installed at the entrance of the rain shower channel (11), the partition (42) is provided with a conformable channel for the test object to pass through, and the wind curtain plane covers the conformable channel.

4. The rain test sealing detection equipment according to claim 1, characterized in that: The fan room (22) comprises an air inlet chamber (221) arranged at the top of the air drying passage (21), and a fan (222) arranged at the top of the air drying passage (21) and respectively connected to the air inlet chamber (221) and the air drying passage (21).

5. The rain test sealing detection equipment according to claim 4, characterized in that: An air supply port (223) communicating with the outside is also provided on the inner wall of the air inlet chamber (221).

6. The rain test sealing detection equipment according to claim 5, characterized in that: A wind pressure sensor is also provided at the inlet of the shower channel (11), and a humidity sensor is also provided in the air inlet chamber (221). The wind pressure sensor and the humidity sensor are respectively connected to an external controller.

7. The rain test sealing detection equipment according to claim 6, characterized in that: The air supply port (223) is provided with an electric valve for controlling the opening of the air supply port (223), and the electric valve is connected to the controller.

8. The rain test sealing detection equipment according to claim 1, characterized in that: The spray system (12) comprises a plurality of spray heads evenly arranged on the inner wall of the shower channel (11), and pipes respectively connected to the plurality of spray heads.

9. The rain test sealing detection equipment according to claim 1, characterized in that: It also comprises a sound-absorbing room (5), the sound-absorbing room (5) being connected to the outlet of the air-drying area (2), and sound-absorbing cotton (51) and a punching plate (52) being attached to the inner wall of the sound-absorbing room (5) in sequence.

10. The rain test sealing detection equipment according to claim 9, characterized in that: It also includes a plate chain conveyor line (6) installed on the ground and used for conveying test objects, wherein the plate chain conveyor line (6) sequentially passes through the rain channel (11), the return air channel (31), the air drying channel (21) and the anechoic room (5).

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