An external mounting detection device for vibration detection of trackless vehicles

Abstract

This invention relates to the field of vehicle inspection technology, specifically to an external mounting detection device for trackless vehicle vibration detection. The device includes a positioning component, an auxiliary component fixedly mounted at its front end, and handles fixedly mounted at both ends of its top. The positioning component includes an alignment device and a support device. The alignment device is symmetrically fixedly mounted at the top of the support device. The support device includes a suction cup, a positioning cavity, a push-button switch, a vacuum pump, slots, a support top plate, a photoelectric sensor, a cover plate, a first air pipe, and an extension bracket. The cover plate is fixedly mounted at the top of the positioning cavity, and the support top plate is symmetrically fixedly mounted at the bottom of the cover plate. The photoelectric sensor is fixedly mounted at the center of both sides of the support top plate, and slots are symmetrically located on both sides of the positioning cavity. Through the arrangement of the positioning component and the auxiliary component, the synchronous positioning and activation of the vehicle vibration detection device and the reduction of airflow resistance are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle detection, in particular to an external mounting detection device for vibration detection of trackless vehicles. Background Art

[0002] Tunnel trackless vehicles are non-track vehicles used to transport materials, equipment or personnel in tunnel projects. There are many types of tunnel trackless vehicles, but most of them are fuel-powered, tire-running dump trucks with load capacities ranging from 2 tons to 25 tons. In order to adapt to the special environment in the tunnel, some vehicles also use articulated bodies or two-way driving tunnel-specific designs. In addition, with the development of technology, electric trackless flat cars are also gradually used in tunnel projects. They are powered by electricity, which is more environmentally friendly and energy-saving.

[0003] For example, a hydraulic motor output shaft vibration detection mechanism and method with Chinese patent publication number CN116447198A includes a mounting base plate, a movable device is provided at the bottom of the mounting base plate, the mounting base plate is horizontally arranged and a mounting plate is fixed to the upper end surface, a groove is provided on the upper side of the mounting plate, a mounting groove is provided inside the mounting plate and on the right side of the groove, a moving mechanism is provided inside the groove, a connecting plate is provided on the top of the moving mechanism, and a clamping assembly for clamping and fixing the hydraulic motor is provided on the top of the connecting plate.

[0004] For example, a vehicle detection device based on multiple vibration detection sensors with Chinese patent publication number CN103927870A includes a vibration detection unit, a vibration signal conditioning circuit, a data acquisition unit, a microprocessor, a storage unit and a wireless transmission module. The vibration detection unit, the vibration signal conditioning circuit, the data acquisition unit and the microprocessor are connected in sequence, and the storage unit and the wireless transmission module are respectively connected to the microprocessor. During the driving process of the vehicle, the axle generates continuous excitation to the road surface through the wheels, and the road vibration caused is detected by the vibration detection unit installed on the road surface or inside, and the road vibration intensity information is converted into an acceleration intensity signal and sent to the vibration detection unit. The signal conditioning circuit and the vibration signal conditioning circuit organize the acceleration intensity signal sent by the vibration detection unit and transmit the signal to the data acquisition unit; the data acquisition unit converts the received acceleration intensity signal into a digital signal and sends it to the microprocessor; the microprocessor processes, analyzes and calculates the received digital acceleration signal to obtain vehicle parameter information, and transfers and sends the vehicle parameter information through the storage unit and the wireless transmission module; the vibration detection unit includes three or more vibration or acceleration sensors, which are arranged on the road surface or buried inside the road in the form of a spatial array, and the source positioning is obtained by the simultaneous operation of multiple vibration sensors.

[0005] At present, the existing vibration detection device for trackless vehicles used in mines is handheld in design, so that the trackless vehicles used in mines cannot perform engine compartment vibration detection while driving, and thus the actual operating dynamics of the vehicle engine cannot be known. As a result, the existing vibration detection device for trackless vehicles used in mines cannot be synchronized and positioned to start, and the wind resistance cannot be reduced. Therefore, a device is needed to improve the above-mentioned problem. Summary of the invention

[0006] In view of the problems in the prior art, the present invention provides an external mounting detection device for vibration detection of trackless vehicles.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an external mounting detection device for vibration detection of trackless vehicles, comprising a positioning component, an auxiliary component is fixedly installed at the front end of the positioning component, handles are fixedly installed at both ends of the top of the positioning component, the positioning component comprises an alignment device and a support device, the alignment device is symmetrically fixedly installed at the inner top of the support device, the support device comprises a suction cup, a positioning cavity, a button switch, a vacuum pump, a slot, a support top plate, a photoelectric sensor, a cover plate, a first air pipe and an extension bracket, the cover plate is fixedly installed at the top of the positioning cavity, the support top plate is symmetrically fixedly installed at the bottom of the cover plate, the photoelectric sensor is fixedly installed at the center of both sides of the support top plate, the slot is symmetrically opened on both sides of the interior of the positioning cavity, the vacuum pump is fixedly installed at both ends of the interior of the positioning cavity, the button switch is fixedly installed at both ends of the positioning cavity, the extension bracket is fixedly installed at both sides of the positioning cavity, the suction cup is fixedly installed at both ends of the bottom of the extension bracket, and the first air pipe is fixedly installed between the suction cup and the vacuum pump.

[0008] Specifically, the alignment device includes an alignment plate, a first return spring, a vertical plate, a vibration detector and a key, the key is fixedly installed at both ends of the vertical plate, the vibration detector is fixedly installed at the bottom end of the vertical plate, the first return spring is symmetrically fixedly installed at the top of the vertical plate, and the alignment plate is fixedly installed at the top of both sides of the vertical plate.

[0009] Specifically, the auxiliary component includes an extending device and a synchronizing device, and the synchronizing device is fixedly installed at both ends of the extending device.

[0010] Specifically, the extending device includes a guide plate, a rear end bracket, a gear, a rack, a movable plate, a guide cross frame, a contact front plate, a side end bracket and a second return spring. The guide plate is rotatably mounted on the front end of the rear end bracket, the gear is fixedly mounted on the front ends of both sides of the guide plate, the side end brackets are symmetrically fixedly mounted on both sides of the rear end bracket close to the gear, the guide cross frame is symmetrically fixedly mounted between the two side end brackets, the movable plate is slidably sleeved on the guide cross frame, the second return spring is fixedly mounted between the side end bracket and the movable plate, the rack is fixedly mounted on the front end bottom of the movable plate, and the contact front plate is fixedly mounted on the end of the side end bracket away from the rear end bracket.

[0011] Specifically, the synchronization device includes a connecting plate, a piston rod, an air cylinder and a second air pipe. The air cylinder is fixedly mounted on the connecting plate, the piston rod is slidably inserted inside the front end of the air cylinder, and the second air pipe is fixedly mounted at the rear end center of the air cylinder.

[0012] Specifically, the top end of the first return spring is connected to the bottom end of the supporting top plate, the key is slidably inserted into the inside of the card slot, the rear end bracket is fixedly installed on the front ends of both sides of the positioning cavity, the connecting plate is fixedly installed on the side end of the rear end bracket away from the guide plate, the end of the second air pipe away from the air cylinder passes through the positioning cavity and is connected to the vacuum pump, and the front end of the piston rod is connected to the rear end bottom of the movable plate.

[0013] Specifically, the alignment plate is vertically aligned with the photoelectric sensor, the photoelectric sensor is electrically connected to the vacuum pump and the vibration detector, the button switch is electrically connected to the vacuum pump, and the gear is meshed with the rack.

[0014] Specifically, the contact front plate is horizontally aligned with the rear end of the movable plate, the interior of the air cylinder is arranged in a hollow state, and a closed cavity is formed between the second air pipe, the air cylinder and the piston rod.

[0015] Specifically, the air cylinder and the second air pipe are interconnected, a 30° slope is provided at the top front end of the guide plate, the suction cup is flush with the bottom end of the positioning cavity, and the guide plate is vertically aligned with the cover plate.

[0016] Specifically, the positioning cavity includes a positioning spring and a plastic gasket. The positioning spring is fixedly installed at an equal distance inside the bottom end of the positioning cavity, and the plastic gasket is fixedly installed at the bottom end of the positioning spring.

[0017] Beneficial effects of the present invention:

[0018] First, the present invention allows the user to hold the handle, so that the device can be placed on the car hood. Subsequently, the bottom end of the vibration detector is 3 cm longer than the bottom end of the suction cup, so that when the positioning cavity moves downward, it can first drive the vibration detector to contact the hood. Subsequently, when the suction cup contacts the hood, it can drive the alignment plate to contact the photoelectric sensor, start the vibration detector and the vacuum pump, so that the device can be fixed on the hood, and at the same time, the vibration detector can be attached to the hood for vibration detection, completing the work of synchronously starting the vibration detector and the vacuum pump.

[0019] Secondly, when the vacuum pump is started, the gas inside the air cylinder can be extracted through the second air pipe, driving the piston rod to move to the rear end. At the same time, the piston rod will also drive the rack to pass through the bottom end of the gear, so that the gear can drive the guide plate to rotate upward, so that the guide plate can be flush with the front end surface of the cover plate, so that the wind can flow to the rear end along the surface of the guide plate, thereby reducing the resistance between the device and the wind and completing the work of reducing the wind flow resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning component in the present invention from the bottom perspective;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the alignment device in the present invention from a front perspective;

[0024] Figure 4 It is a partial cutaway schematic diagram of the supporting device in the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the auxiliary component in the present invention from a front perspective;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the extension device of the present invention from the front perspective;

[0027] Figure 7 For the present invention Figure 6 A local enlarged schematic diagram of point A;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the synchronization device in the present invention from the front perspective;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the positioning cavity in the present invention.

[0030] In the figure: 1-positioning component, 2-auxiliary component, 3-handle, 4-alignment device, 5-support device, 6-alignment plate, 7-first return spring, 8-vertical plate, 9-vibration detector, 10-key, 11-suction cup, 12-positioning cavity, 13-button switch, 14-vacuum pump, 15-card slot, 16-support top plate, 17-photoelectric sensor, 18-cover plate, 19-first air pipe, 20-extension bracket, 21-extension device, 22-synchronizing device, 23-guide plate, 24-rear end bracket, 25-gear, 26-rack, 27-movable plate, 28-guide cross frame, 29-contact front plate, 30-side end bracket, 31-second return spring, 32-connecting plate, 33-piston rod, 34-air cylinder, 35-second air pipe, 36-positioning spring, 37-plastic gasket. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0032] The present invention is further described below in conjunction with the accompanying drawings.

[0033] Example 1

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, an external mounting detection device for vibration detection of trackless vehicles of the present invention comprises a positioning component 1, an auxiliary component 2 is fixedly installed at the front end of the positioning component 1, handles 3 are fixedly installed at both ends of the top of the positioning component 1, the positioning component 1 comprises a positioning device 4 and a supporting device 5, the positioning device 4 is symmetrically fixedly installed at the inner top of the supporting device 5, the supporting device 5 comprises a suction cup 11, a positioning cavity 12, a button switch 13, a vacuum pump 14, a card slot 15, a supporting top plate 16, a photoelectric sensor 17, a cover plate 18, a first air pipe 19 and an extension bracket 20, the cover plate 1 8 is fixedly mounted on the top of the positioning cavity 12, the supporting top plate 16 is symmetrically fixedly mounted on the bottom of the covering plate 18, the photoelectric sensor 17 is fixedly mounted on the centers of both sides of the supporting top plate 16, the card slots 15 are symmetrically opened on both sides of the interior of the positioning cavity 12, the vacuum pump 14 is fixedly mounted on both ends of the interior of the positioning cavity 12, the button switch 13 is fixedly mounted on both ends of the positioning cavity 12, the extension bracket 20 is fixedly mounted on both sides of the positioning cavity 12, the suction cup 11 is fixedly mounted on both ends of the bottom of the extension bracket 20, and the first air pipe 19 is fixedly mounted between the suction cup 11 and the vacuum pump 14.

[0035] like Figure 3 The alignment device 4 includes an alignment plate 6, a first return spring 7, a vertical plate 8, a vibration detector 9 and a key 10. The key 10 is fixedly installed at both ends of the vertical plate 8, the vibration detector 9 is fixedly installed at the bottom end of the vertical plate 8, the first return spring 7 is symmetrically fixedly installed at the top of the vertical plate 8, and the alignment plate 6 is fixedly installed at the top of both sides of the vertical plate 8. The key 10 slides up and down inside the slot 15, so that the vibration detector 9 can be ensured to move up and down in a straight line inside the positioning cavity 12, thereby improving the docking accuracy of the vibration detector 9 and the engine hood.

[0036] like Figure 5 The auxiliary component 2 includes an extending device 21 and a synchronizing device 22. The synchronizing device 22 is fixedly mounted at both ends of the extending device 21 to support the extending device 21 to rotate.

[0037] like Figure 6 and Figure 7 The extending device 21 includes a guide plate 23, a rear end bracket 24, a gear 25, a rack 26, a movable plate 27, a guide cross frame 28, a contact front plate 29, a side end bracket 30 and a second return spring 31. The guide plate 23 is rotatably mounted on the front end of the rear end bracket 24, the gear 25 is fixedly mounted on the front ends of both sides of the guide plate 23, the side end brackets 30 are symmetrically fixedly mounted on both sides of the rear end bracket 24 close to the gear 25, the guide cross frame 28 is symmetrically fixedly mounted between the two side end brackets 30, the movable plate 27 is slidably sleeved on the guide cross frame 28, the second return spring 31 is fixedly mounted between the side end bracket 30 and the movable plate 27, the rack 26 is fixedly mounted on the front end bottom of the movable plate 27, and the contact front plate 29 is fixedly mounted on the end of the side end bracket 30 away from the rear end bracket 24, and can contact the contact front plate 29 when the movable plate 27 moves to the rear end to the limit position, so that the contact front plate 29 can limit the movable plate 27 to prevent the rack 26 from continuously moving to the rear end.

[0038] like Figure 8 The synchronization device 22 includes a connecting plate 32, a piston rod 33, an air cylinder 34 and a second air pipe 35. The air cylinder 34 is fixedly mounted on the connecting plate 32, the piston rod 33 is slidably inserted into the front end of the air cylinder 34, and the second air pipe 35 is fixedly mounted at the rear end center of the air cylinder 34. A relief valve is installed on the outer ring of the air cylinder 34. When the relief valve is opened, it is convenient for outside air to enter the interior of the air cylinder 34 and the piston rod 33 can be released.

[0039] The top end of the first return spring 7 is connected to the bottom end of the support top plate 16, the card key 10 is slidably inserted into the inside of the card slot 15, the rear end bracket 24 is fixedly installed on the front ends of both sides of the positioning cavity 12, the connecting plate 32 is fixedly installed on the side end of the rear end bracket 24 away from the guide plate 23, the end of the second air pipe 35 away from the air cylinder 34 passes through the positioning cavity 12 and is connected to the vacuum pump 14, the front end of the piston rod 33 is connected to the rear end bottom of the movable plate 27, the alignment plate 6 is vertically aligned with the photoelectric sensor 17, and the photoelectric sensor 17 is aligned with the vacuum pump 14. It is electrically connected to the vibration detector 9, the button switch 13 is electrically connected to the vacuum pump 14, the gear 25 is meshed with the rack 26, the contact front plate 29 is horizontally aligned with the rear end of the movable plate 27, the interior of the air cylinder 34 is hollow, and a closed cavity is formed between the second air pipe 35, the air cylinder 34 and the piston rod 33, the air cylinder 34 and the second air pipe 35 are interconnected, a 30° slope is provided at the top front end of the guide plate 23, the suction cup 11 is flush with the bottom end of the positioning cavity 12, and the guide plate 23 is vertically aligned with the cover plate 18.

[0040] The working principle of embodiment 1 is as follows: when in use, the user can hold the handle 3 to place the device on the engine hood of the car, and then press the device downward. The vibration detector 9 is 3 cm higher than the positioning cavity 12, so that the vibration detector 9 will first contact the engine hood. Subsequently, through the setting of the first return spring 7, the positioning cavity 12 can be allowed to continue to move downward until the bottom ends of the positioning cavity 12 and the suction cup 11 are respectively in contact with the surface of the engine hood. At the same time, when the positioning cavity 12 and the suction cup 11 are in contact with the surface of the engine hood, the positioning cavity 12 can drive the photoelectric sensor 17 to contact the alignment plate 6, so that the photoelectric sensor 17 can start the vacuum pump 14 and the vibration detector 9. Through the setting of the first return spring 7, the positioning cavity 12 can always The extrusion vibration detector 9 is in contact with the surface of the engine hood, so that the vibration of the engine hood can be detected in real time. At the same time, when the vacuum pump 14 is started, the air inside the suction cup 11 can be absorbed by the first air pipe 19, so that a vacuum cavity can be formed between the suction cup 11 and the surface of the engine hood, so that the suction cup 11 can be stably installed on the engine hood. At the same time, the vacuum pump 14 can also absorb the gas inside the air cylinder 34 through the second air pipe 35, causing the piston rod 33 to move toward the inside of the air cylinder 34. The piston rod 33 is connected to the rear end of the movable plate 27, so that when the piston rod 33 moves toward the rear end, it can drive the movable plate 27 and the rack 26 to move toward the rear end at the same time, and the movable plate 27 is slidably sleeved on the guide cross frame 28, so that the movable plate 27 can be supported to move along a straight line. The gear 25 is meshed with the rack 26, so that when the rack 26 passes the bottom end of the gear 25, the guide plate 23 can be driven to rotate upward with the front end of the rear bracket 24 as the base point, so that the rear end surface of the guide plate 23 can be tilted upward until the rack 26 moves to the rear end to the limit position, and the movable plate 27 can be driven to contact the contact front plate 29, so that the guide plate 23 can be rotated to align with the front end surface of the cover plate 18, so that the guide plate 23 can maintain an obtuse angle posture, and then the tester can enter the interior of the car and start the vehicle. The guide plate 23 is inclined at the front end of the positioning cavity 12, so that the wind can flow along the surface of the guide plate 23, avoiding the formation of resistance in the positioning cavity 12, causing the positioning cavity 12 to vibrate, and improving the detection stability of the vibration detector 9. When the vehicle detection is completed, the tester can press the button switch 13. The button switch 13 is a power-off circuit, so that when the button switch 13 is pressed, the power of the vacuum pump 14 and the vibration detector 9 can be turned off. Subsequently, a bleed valve is installed on the top of the suction cup 11, and the bleed valve can be opened to destroy the vacuum cavity between the suction cup 11 and the engine hood, so that the suction cup 11 can be removed from the engine hood. At the same time, the bleed valve is also installed on the air cylinder 34, and the bleed valve can be opened.Therefore, the outside air can enter the interior of the air cylinder 34, so that the piston rod 33, through the elasticity of the second reset spring 31, will drive the movable plate 27 to move to the front end and reset. When the movable plate 27 moves to the front end and resets, it can drive the rack 26 to pass through the bottom end of the rack 26 again, thereby driving the gear 25 to rotate in the opposite direction, driving the guide plate 23 to rotate downward and reset, completing the reset of the guide plate 23. The vibration detector 9 is a machine status monitoring instrument based on microprocessor design. It has multiple functions such as vibration detection, bearing status analysis and infrared temperature measurement. It is very suitable for on-site equipment operation and maintenance personnel to monitor equipment status. Therefore, when the vibration detector 9 is in use, the vibration detector 9 contacts the surface of the engine hood, so that the vibration generated when the engine is running can be detected at the first time, so that the user can measure the real-time vibration data of the engine compartment and the engine.

[0041] Example 2

[0042] On the basis of Example 1, Fig. 9 As shown, the positioning cavity 12 includes a positioning spring 36 and a plastic gasket 37 . The positioning spring 36 is fixedly installed at an equal distance inside the bottom end of the positioning cavity 12 , and the plastic gasket 37 is fixedly installed at the bottom end of the positioning spring 36 .

[0043] When implementing this embodiment, when the positioning cavity 12 is about to contact the surface of the engine hood, the plastic gasket 37 will contact the surface of the engine hood in advance. A receiving groove is provided at the bottom end of the positioning cavity 12, so that when the plastic gasket 37 contacts the engine hood, the receiving groove will slide on the outer ring of the plastic gasket 37, thereby preventing excessive gas from entering the interior of the positioning cavity 12 from the bottom end of the positioning cavity 12 when the car is driving, thereby improving the detection efficiency of the vibration detector 9, and when the positioning cavity 12 is not in use, the elasticity of the positioning spring 36 will drive the plastic gasket 37 to move outward and reset, so that the plastic gasket 37 can contact the surface of the engine hood again to complete the work.

[0044] 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 external mounting detection device for vibration detection of a trackless vehicle, comprising a positioning component (1), handles (3) being fixedly mounted at both ends of the top of the positioning component (1), characterized in that: The positioning component (1) comprises a positioning device (4) and a supporting device (5), wherein the positioning device (4) is symmetrically fixedly mounted on the inner top of the supporting device (5), and the supporting device (5) comprises a suction cup (11), a positioning cavity (12), a button switch (13), a vacuum pump (14), a card slot (15), a supporting top plate (16), a photoelectric sensor (17), a covering plate (18), a first air pipe (19) and an extension bracket (20), wherein the covering plate (18) is fixedly mounted on the top of the positioning cavity (12), and the supporting top plate (16) is symmetrically fixedly mounted on the covering plate (18). The photoelectric sensor (17) is fixedly mounted at the center of both sides of the supporting top plate (16), the card slot (15) is symmetrically arranged on both sides of the interior of the positioning cavity (12), the vacuum pump (14) is fixedly mounted at both ends of the interior of the positioning cavity (12), the button switch (13) is fixedly mounted at both ends of the positioning cavity (12), the extension bracket (20) is fixedly mounted at both sides of the positioning cavity (12), the suction cup (11) is fixedly mounted at both ends of the bottom of the extension bracket (20), and the first air pipe (19) is fixedly mounted between the suction cup (11) and the vacuum pump (14); The alignment device (4) comprises an alignment plate (6), a first return spring (7), a vertical plate (8), a vibration detector (9) and a latch (10); the latch (10) is slidably inserted into the interior of the latch slot (15); the latch (10) is fixedly mounted at both ends of the vertical plate (8); the vibration detector (9) is fixedly mounted at the bottom end of the vertical plate (8); the first return spring (7) is symmetrically fixedly mounted at the top end of the vertical plate (8); and the alignment plate (6) is fixedly mounted at the top ends of both sides of the vertical plate (8).

2. The external mounting detection device for vibration detection of trackless vehicles according to claim 1, characterized in that: An auxiliary component (2) is fixedly mounted on the front end of the positioning component (1), wherein the auxiliary component (2) comprises an extension device (21) and a synchronization device (22), and the synchronization device (22) is fixedly mounted on both ends of the extension device (21); The extending device (21) comprises a guide plate (23), a rear end bracket (24), a gear (25), a rack (26), a movable plate (27), a guide cross frame (28), a contact front plate (29), a side end bracket (30) and a second return spring (31), wherein the guide plate (23) is rotatably mounted on the front end of the rear end bracket (24), the gear (25) is fixedly mounted on the front ends of both sides of the guide plate (23), the side end brackets (30) are symmetrically fixedly mounted on both sides of the rear end bracket (24) close to the gear (25), the guide cross frame (28) is symmetrically fixedly mounted between the two side end brackets (30), the movable plate (27) is slidably sleeved on the guide cross frame (28), the second return spring (31) is fixedly mounted between the side end bracket (30) and the movable plate (27), the rack (26) is fixedly mounted on the front end bottom of the movable plate (27), and the contact front plate (29) is fixedly mounted on one end of the side end bracket (30) away from the rear end bracket (24); The synchronizing device (22) comprises a connecting plate (32), a piston rod (33), an air cylinder (34) and a second air pipe (35); the air cylinder (34) is fixedly mounted on the connecting plate (32); the piston rod (33) is slidably inserted into the front end of the air cylinder (34); and the second air pipe (35) is fixedly mounted at the rear end center of the air cylinder (34).

3. The external mounting detection device for vibration detection of trackless vehicles according to claim 2, characterized in that: The top end of the first return spring (7) is connected to the bottom end of the supporting top plate (16), the rear end bracket (24) is fixedly mounted on the front ends of both sides of the positioning cavity (12), the connecting plate (32) is fixedly mounted on the side ends of the rear end bracket (24) away from the guide plate (23), the end of the second air pipe (35) away from the air cylinder (34) passes through the positioning cavity (12) and is connected to the vacuum pump (14), and the front end of the piston rod (33) is connected to the bottom of the rear end of the movable plate (27).

4. The external mounting detection device for vibration detection of trackless vehicles according to claim 3, characterized in that: The alignment plate (6) is vertically aligned with the photoelectric sensor (17), the photoelectric sensor (17) is electrically connected to the vacuum pump (14) and the vibration detector (9), the button switch (13) is electrically connected to the vacuum pump (14), and the gear (25) is meshed with the rack (26).

5. The external mounting detection device for vibration detection of trackless vehicles according to claim 4, characterized in that: The contact front plate (29) is horizontally aligned with the rear end of the movable plate (27); the interior of the air cylinder (34) is arranged in a hollow state; and a closed cavity is formed between the second air pipe (35), the air cylinder (34) and the piston rod (33).

6. The external mounting detection device for vibration detection of trackless vehicles according to claim 5, characterized in that: The air cylinder (34) and the second air pipe (35) are interconnected, a 30° slope is provided at the top front end of the guide plate (23), the suction cup (11) is flush with the bottom end of the positioning cavity (12), and the guide plate (23) is vertically aligned with the cover plate (18).

7. The external mounting detection device for vibration detection of trackless vehicles according to claim 6, characterized in that: The positioning cavity (12) comprises a positioning spring (36) and a plastic gasket (37), wherein the positioning spring (36) is fixedly mounted at equal distances inside the bottom end of the positioning cavity (12), and the plastic gasket (37) is fixedly mounted at the bottom end of the positioning spring (36).

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