Air bag drop rate detection device

Abstract

The utility model relates to an air bag drop rate detection device. The air bag drop rate detection device comprises a detection table, a bearing plate and a detection assembly, the bearing plate is arranged on the detection table and is provided with a clamping station; the detection assembly comprises a fixing frame, a lifting part, a lifting frame and a stroke sensor, the fixing frame is fixedly connected with the detection table, the lifting part is installed on the fixing frame, an output end connected with the lifting frame is formed at the bottom of the lifting part, the stroke sensor is installed on the fixing frame and provided with a moving end, and the bottom of the moving end of the stroke sensor abuts against the fixing frame; the trigger piece comprises a contact switch and an ejector rod, the contact switch is fixedly connected with the lifting frame, the ejector rod is slidably connected with the lifting frame in the vertical direction, the top end of the ejector rod penetrates through the lifting frame and is arranged right opposite to the contact switch, and the contact switch is electrically connected with the lifting piece and the stroke sensor; the sliding rod touches the touch switch to immediately control the lifting piece to stop and record the current inflation height of the air bag, so that the inflation height of the air bag before and after falling can be accurately measured.

Description

Technical Field

[0001] This utility model relates to the field of air bag detection technology, and in particular to an air bag drop rate detection device. Background Technology

[0002] The function of car seats has gradually expanded beyond simply providing a comfortable driving and riding posture. In high-end cars, designers have incorporated massage and ventilation functions into the car seats to meet the growing demands of consumers. Most car seat massage functions achieve this by inflating and deflating airbags within the seat.

[0003] Before leaving the factory, the air tightness of the airbag needs to be tested. The air tightness test includes a rough inspection and a fine inspection. The rough inspection involves inflating the airbag and holding the pressure for 10-30 seconds to determine if there is any obvious leakage. The fine inspection involves inflating the airbag and recording the current inflation height. After waiting for about 24 hours, the current inflation height is recorded again. The difference in inflation height can be used to determine the drop rate of the airbag.

[0004] The air bag drop rate can determine whether the micro-leakage of the air bag is within the specified range, thus avoiding insufficient massage intensity due to severe micro-leakage.

[0005] However, when testing the drop rate of airbags, it is difficult to detect the difference in inflation height before and after the airbag is dropped because the change in inflation height before and after the airbag is dropped is not obvious. Utility Model Content

[0006] In view of this, it is necessary to provide an air bag drop rate detection device to solve the problem of difficulty in detecting the difference in inflation height before and after air bag drop.

[0007] This utility model provides an air bag drop rate detection device, including a detection platform, a support plate, and a detection assembly. The support plate is disposed on the detection platform and has a clamping station for the air bag. The detection assembly includes a fixed frame, a lifting component, a lifting frame, and a stroke sensor. The fixed frame spans the support plate and is fixedly connected to the detection platform. The lifting component is mounted on the fixed frame and has an output end at its bottom that is connected to the lifting frame. The stroke sensor is mounted on the fixed frame and has a movable end that can move in a vertical direction. The bottom of the movable end of the stroke sensor abuts against the fixed frame. The detection assembly also includes a trigger, which includes a contact switch and a push rod. The contact switch is fixedly connected to the lifting frame. The push rod is disposed between the lifting frame and the support plate and is slidably connected to the lifting frame in a vertical direction. The top end of the push rod passes through the lifting frame and is positioned directly opposite the contact switch. The contact switch is electrically connected to the lifting component and the stroke sensor.

[0008] Furthermore, the fixing frame includes a fixing plate and a plurality of guide posts. The plurality of guide posts are evenly arranged along the edge of the fixing plate. The top ends of the plurality of guide posts are fixedly connected to the fixing plate, and the bottom ends of the plurality of guide posts are fixedly connected to the testing table.

[0009] Furthermore, the lifting frame includes a support plate, a guide plate, and multiple tie rods. The guide plate is slidably connected to the fixed frame in a vertical direction. The bottom of the guide plate is connected to the support plate via the multiple tie rods. The contact switch is fixedly connected to the support plate, and the top rod is slidably connected to the support plate.

[0010] Furthermore, the lifting frame also includes a support plate and several counterweights. The edge of the support plate is fixedly connected to several of the tie rods, and the several counterweights are disposed on the support plate.

[0011] Furthermore, the trigger also includes a Z-shaped plate, the bottom of which is fixedly connected to the support plate, and the top of which is fixedly connected to the contact switch.

[0012] Furthermore, the lifting frame also includes a plurality of bushings mounted on the guide plate, and the plurality of bushings are slidably connected to the plurality of guide columns respectively.

[0013] Furthermore, the detection assembly also includes a support frame, which spans across the support plate and is fixedly connected to the detection table. The support frame has an opening for the lifting frame to pass through, and the fixing frame is fixedly mounted on the support frame.

[0014] Furthermore, it also includes a guide rail fixedly mounted on the testing platform, one end of which extends to the lower position of the support frame, and the bearing plate is slidably connected to the guide rail.

[0015] Furthermore, it also includes a driving component installed on the testing platform, the output end of which is connected to the support plate and is used to drive the support plate to slide.

[0016] Furthermore, the travel sensor includes a cylinder, a straight rod, and a laser rangefinder. The cylinder is fixedly mounted on the fixed frame. The top end of the straight rod extends into the cylinder and is slidably connected to the cylinder. The bottom end of the straight rod abuts against the lifting frame. The laser rangefinder is installed on the inner top wall of the cylinder, and the laser emitting end of the laser rangefinder is positioned pointing towards the top end of the straight rod.

[0017] Compared with existing technologies, this method involves placing an inflated air bag on a testing platform. The lifting mechanism moves the lifting frame downwards. During the downward movement of the lifting frame, the top rod first contacts the air bag. With the air bag blocking its movement, the top rod moves upwards relative to the lifting frame until it touches a contact switch. At this point, the contact switch controls the lifting mechanism to stop and controls the stroke sensor to record the current position. Since the distance from the bottom of the top rod to the bottom of the lifting mechanism is constant when the top rod touches the contact switch, the current inflation height of the air bag can be recorded. After the air bag has been left to stand for a certain period of time, the inflation height of the air bag can be measured again through the above steps. By comparing the inflation height before and after the standing period, the drop rate of the air bag can be obtained. The sliding rod touching the contact switch can immediately control the lifting mechanism to stop and record the current inflation height of the air bag. Therefore, the inflation height of the air bag before and after the drop can be accurately measured. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the air bag drop rate detection device provided in this embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the detection component;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure in which the load-bearing plate and the testing table are slidably connected. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figure 1-2As shown, the present invention provides an air bag drop rate detection device, including a detection platform 100, a support plate 200, and a detection component 300; the support plate 200 is disposed on the detection platform 100, and has a clamping station 210 for air bags; the detection component 300 includes a fixing frame 310, a lifting component 320, a lifting frame 330, and a stroke sensor 340. The fixing frame 310 spans the support plate 200 and is fixedly connected to the detection platform 100. The lifting component 320 is installed on the fixing frame 310, and its bottom forms an output end connected to the lifting frame 330. The stroke sensor 340 is installed on the fixing frame 310, and the stroke sensor... The sensor 340 has a movable end that can move in a vertical direction, and the bottom of the movable end of the stroke sensor 340 abuts against the fixed frame 310; the detection assembly 300 also includes a trigger 350, which includes a contact switch 351 and a push rod 352. The contact switch 351 is fixedly connected to the lifting frame 330, and the push rod 352 is located between the lifting frame 330 and the support plate 200. The push rod 352 is slidably connected to the lifting frame 330 in a vertical direction, and the top end of the push rod 352 passes through the lifting frame 330 and is positioned directly opposite the contact switch 351. The contact switch 351 is electrically connected to the lifting component 320 and the stroke sensor 340.

[0023] During implementation, an inflated air bag is placed on the testing platform 100. The lifting component 320 drives the lifting frame 330 to move downwards. During the downward movement of the lifting frame 330, the top rod 352 first contacts the air bag. Under the obstruction of the air bag, the top rod 352 moves upwards relative to the lifting frame 330 until it touches the contact switch 351. At this time, the contact switch 351 controls the lifting component 320 to stop and controls the stroke sensor 340 to record the current position. Since the distance from the bottom of the top rod 352 to the bottom of the lifting component 320 is a constant when the top rod 352 abuts against the contact switch 351, the current inflation height of the air bag can be recorded. After the air bag has been left to stand for a certain period of time, the inflation height of the air bag after standing can be obtained by measuring again through the above steps. By comparing the inflation height before and after, the drop rate of the air bag can be obtained. The sliding rod touching the contact switch 351 can immediately control the lifting component 320 to stop and record the current inflation height of the air bag. Therefore, the inflation height of the air bag before and after the drop can be accurately measured.

[0024] In this embodiment, the support plate 200 is used to support the air bag. The support plate 200 is disposed on the testing table 100 and has a snap-fit ​​station 210 for the air bag. It is understood that the snap-fit ​​station 210 includes a first snap-fit ​​station 210 for fixing the air bag, a first snap-fit ​​station 210 for fixing the air pump, and a third snap-fit ​​station 210 for fixing the controller. The air pump, controller, and air bag are sequentially connected via air pipes. The snap-fit ​​station 210 can be implemented using structures such as slots or limiting pins formed on the support plate 200.

[0025] The detection component 300 in this embodiment is used to detect the inflation height of the airbag before and after it is lost. The detection component 300 includes a fixed frame 310, a lifting member 320, a lifting frame 330, and a stroke sensor 340. The fixed frame 310 is straddling the support plate 200 and fixedly connected to the detection table 100. The lifting member 320 is mounted on the fixed frame 310 and has an output end at its bottom that connects to the lifting frame 330. The stroke sensor 340 is mounted on the fixed frame 310 and has a movable end that can move vertically. The bottom of the movable end of the stroke sensor 340 abuts against the fixed frame 310.

[0026] The detection component 300 also includes a trigger 350, which includes a contact switch 351 and a push rod 352. The contact switch 351 is fixedly connected to the lifting frame 330. The push rod 352 is located between the lifting frame 330 and the support plate 200. The push rod 352 is slidably connected to the lifting frame 330 in the vertical direction, and the top end of the push rod 352 passes through the lifting frame 330 and is positioned directly opposite the contact switch 351. The contact switch 351 is electrically connected to the lifting component 320 and the stroke sensor 340.

[0027] In one embodiment, the fixing frame 310 includes a fixing plate 311 and a plurality of guide posts 312. The plurality of guide posts 312 are evenly arranged along the edge of the fixing plate 311, the top ends of the plurality of guide posts 312 are fixedly connected to the fixing plate 311, and the bottom ends of the plurality of guide posts 312 are fixedly connected to the detection table 100. The lifting component 320 can be implemented using a structure such as a cylinder, and is used to drive the lifting frame 330 to slide along the plurality of guide posts 312.

[0028] In one embodiment, the lifting frame 330 includes a support plate 331, a guide plate 332, and a plurality of pull rods 333. The guide plate 332 is slidably connected to the fixed frame 310 in the vertical direction. The bottom of the guide plate 332 is connected to the support plate 331 via the plurality of pull rods 333. The contact switch 351 is fixedly connected to the support plate 331, and the top rod 352 is slidably connected to the support plate 331.

[0029] In one embodiment, the lifting frame 330 further includes a support plate 334 and a plurality of counterweights 335. The edge of the support plate 334 is fixedly connected to a plurality of tie rods 333, and the plurality of counterweights 335 are disposed on the support plate 334.

[0030] In one embodiment, the trigger 350 further includes a Z-shaped plate 353, the bottom of which is fixedly connected to the support plate 331, and the top of which is fixedly connected to the contact switch 351.

[0031] In one embodiment, the lifting frame 330 further includes a plurality of bushings mounted on the guide plate 332, the plurality of bushings being slidably connected to a plurality of guide posts 312 respectively.

[0032] In one embodiment, the detection assembly 300 further includes a support frame 360, which spans across the support plate 331 and is fixedly connected to the detection table 100. The support frame 360 ​​has an opening for the lifting frame 330 to pass through, and the fixing frame 310 is fixedly mounted on the support frame 360.

[0033] like Figure 3 As shown, in order to facilitate the installation and removal of the air bag, in one embodiment, a guide rail 220 is also included, which is fixedly installed on the testing table 100. One end of the guide rail 220 extends to the lower position of the support frame 360, and the bearing plate 200 is slidably connected to the guide rail 220.

[0034] This embodiment also includes a drive unit 230 mounted on the testing platform. The output end of the drive unit 230 is connected to the support plate 200 and is used to drive the support plate 200 to slide. It is understood that the drive unit 230 can be implemented using a linear motor or other structures.

[0035] In one embodiment, the travel sensor 340 includes a cylinder, a straight rod, and a laser rangefinder. The cylinder is fixedly mounted on a mounting frame 310. The top end of the straight rod extends into the cylinder and is slidably connected to the cylinder. The bottom end of the straight rod abuts against the lifting frame 330. The laser rangefinder is mounted on the inner top wall of the cylinder, and the laser emitting end of the laser rangefinder is positioned pointing towards the top end of the straight rod.

[0036] Compared with existing technologies: When an inflated air bag is placed on the testing platform 100, the lifting component 320 drives the lifting frame 330 to move downwards. During the downward movement of the lifting frame 330, the top rod 352 first contacts the air bag. Under the obstruction of the air bag, the top rod 352 moves upwards relative to the lifting frame 330 until it touches the contact switch 351. At this time, the contact switch 351 controls the lifting component 320 to stop and controls the stroke sensor 340 to record the current position. Since the distance from the bottom of the top rod 352 to the bottom of the lifting component 320 is a constant when the top rod 352 abuts against the contact switch 351, the current inflation height of the air bag can be recorded. After the air bag has been left to stand for a certain period of time, the inflation height of the air bag after standing can be obtained by measuring again through the above steps. By comparing the inflation height before and after, the drop rate of the air bag can be obtained. The sliding rod touching the contact switch 351 can immediately control the lifting component 320 to stop and record the current inflation height of the air bag. Therefore, the inflation height of the air bag before and after the drop can be accurately measured.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air bag out-of-position detection device characterized by comprising: The detection device comprises a detection table, a bearing plate and a detection assembly; The bearing plate is arranged on the detection table and has a clamping station for the air bag; The detection assembly comprises a fixing frame, a lifting member, a lifting frame and a stroke sensor, the fixing frame is arranged on the bearing plate and fixedly connected with the detection table, the lifting member is arranged on the fixing frame and has an output end connected with the lifting frame, the stroke sensor is arranged on the fixing frame and has a movable end movable in the vertical direction, and the bottom of the movable end of the stroke sensor is in abutment with the fixing frame. The detection assembly further comprises a trigger, the trigger comprises a contact switch and a top rod, the contact switch is fixedly connected with the lifting frame, and the top rod is arranged between the lifting frame and the bearing plate, the top rod is in sliding connection with the lifting frame in the vertical direction, the top end of the top rod penetrates through the lifting frame and is arranged opposite to the contact switch, and the contact switch is electrically connected with the lifting member and the stroke sensor.

2. The air bag out-of-position detection device according to claim 1, characterized by The fixing frame comprises a fixing plate and a plurality of guide columns, the guide columns are uniformly arranged at the edges of the fixing plate, the top ends of the guide columns are fixedly connected with the fixing plate, and the bottom ends of the guide columns are fixedly connected with the detection table.

3. The air bag out-of-position detection apparatus according to claim 2, characterized by The lifting frame comprises a supporting plate, a guide plate and a plurality of pull rods, the guide plate is in sliding connection with the fixing frame in the vertical direction, the bottom of the guide plate is connected with the supporting plate through the pull rods, the contact switch is fixedly connected with the supporting plate, and the top rod is in sliding connection with the supporting plate.

4. The air bag out-of-position rate detection apparatus according to claim 3, characterized by The lifting frame further comprises a supporting plate and a plurality of counterweights, the edges of the supporting plate are fixedly connected with the pull rods, and the counterweights are arranged on the supporting plate.

5. The air bag out-of-position rate detection apparatus according to claim 3, characterized by The trigger further comprises a Z-shaped plate, the bottom of the Z-shaped plate is fixedly connected with the supporting plate, and the top of the Z-shaped plate is fixedly connected with the contact switch.

6. The air bag out-of-position rate detection apparatus according to claim 3, characterized by The lifting frame further comprises a plurality of shaft sleeves arranged on the guide plate, and the shaft sleeves are in sliding connection with the guide columns.

7. The air bag out-of-position detection apparatus according to claim 1, characterized by The detection assembly further comprises a supporting frame, the supporting frame is arranged on the bearing plate and fixedly connected with the detection table, an opening is formed in the supporting frame for the lifting frame to pass through, and the fixing frame is fixedly arranged on the supporting frame.

8. The air bag out-of-position detection apparatus according to claim 7, characterized by A guide rail is fixedly arranged on the detection table, one end of the guide rail extends to a position below the supporting frame, and the bearing plate is in sliding connection with the guide rail.

9. The air bag out-of-position detection apparatus according to claim 8, wherein A driving member is arranged on the detection table, the output end of the driving member is connected with the bearing plate, and the driving member is used to drive the bearing plate to slide.

10. The air bag out-of-position detection apparatus according to claim 1, characterized by The stroke sensor comprises a cylinder, a straight rod and a laser range finder, the cylinder is fixedly arranged on the fixing frame, the top end of the straight rod extends into the cylinder and is in sliding connection with the cylinder, the bottom end of the straight rod is in abutment with the lifting frame, the laser range finder is arranged on the inner top wall of the cylinder, and the laser emission end of the laser range finder is directed to the top of the straight rod.

Images