Anti-derailment device for travelling of trolley of vehicle-mounted sampling machine

Abstract

An anti-derailment device for the travelling of a trolley of a vehicle-mounted sampling machine, which relates to the technical field of anti-derailment for large mobile apparatuses in thermal power plants. The anti-derailment device comprises an anti-derailment mechanism (100) and a connecting mechanism (200), wherein the anti-derailment mechanism (100) comprises a protection assembly (101) and a monitoring assembly (102); the protection assembly (101) is arranged at the front end of a mobile apparatus travelling wheel; the monitoring assembly (102) is connected to the protection assembly (101); and the connecting mechanism (200) comprises a joint (201), a fixing assembly (202) and a disengaging assembly (203), wherein the joint (201) is arranged at the upper end of the protection assembly (101), the fixing assembly (202) is arranged at the bottom end of a mobile apparatus and is detachably connected to the joint (201), and the disengaging assembly (203) is arranged on the joint (201). In the anti-derailment device, an induction distance between a proximity switch and a rail is automatically adjusted by means of the extension and compression of a spring in an anti-derailment mechanism, thereby solving the potential safety hazard when a trolley travels on uneven tracks; and a connecting mechanism is provided to enable the anti-derailment mechanism to be quickly assembled and disassembled, thereby facilitating regular inspection of the performance of the spring, and maintenance and replacement of the spring in the anti-derailment mechanism, and also ensuring the flexible extension and compression of the spring.

Description

An anti-derailment device for the traveling vehicle of a car sampling machine Technical Field

[0001] The invention relates to the technical field of anti-derailment of large mobile equipment in thermal power plants, in particular to an anti-derailment device for a large vehicle sampler. Background Art

[0002] When the automobile sampler is taking samples, since the coal may be mixed with stones, frozen coal or metal materials, once the sampler's spiral drill drills into these hard materials during the descent process, the sampling drill bit will lift up the entire trolley mechanism of the sampler, causing the trolley's running wheels to come off the track. In the mildest case, the trolley will be unable to move, and in the worst case, it will cause the trolley to fall, injuring people, damaging coal transport vehicles, and causing major accidents. In addition, some automobile samplers have been in operation for a long time, and the trolley's running tracks are uneven and severely deformed. Even if an anti-derailment proximity switch is installed on the sampler, the uneven track makes it difficult to grasp the proximity switch sensing distance. The proximity switch can easily be rubbed off when the trolley is moving, which cannot protect the sampler trolley's running mechanism.

[0003] Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing automobile sampling machine trolley anti-derailment device, the present invention is proposed.

[0005] Therefore, problem to be solved by the present invention is how to avoid the automobile sampling machine trolley travel anti-derail device from being damaged.

[0006] For solving the above-mentioned technical problems, the present invention provides the following technical scheme: a kind of automobile sampling machine trolley walking anti-derail device, it comprises, anti-derail mechanism, comprises protection assembly, monitoring assembly, described protection assembly is arranged at the front end of the mobile equipment running wheel, described monitoring assembly is connected with described protection assembly; connecting mechanism, comprises joint, fixing assembly, disengagement assembly, described joint is arranged at described protection assembly upper end, described fixing assembly is arranged at the bottom of mobile equipment, is detachably connected with described joint, and described disengagement assembly is arranged on described joint.

[0007] As a preferred solution of the anti-derailment device for the automobile sampling machine trolley described in the present invention, the protection component includes a sleeve, an upper cover, a first spring, a bracket, a track wheel, and a connecting tube. The upper cover is detachably connected to the upper end of the sleeve, the bracket is arranged at the lower end of the upper cover, the first spring is sleeved on the outside of the bracket, one end of the connecting tube is hinged to the track wheel, and the outside of one end of the track wheel is slidably matched with the inner side of the sleeve, and the bracket is slidably matched with the inner wall of the connecting tube.

[0008] As a preferred solution of the automobile sampling machine trolley anti-derailment device described in the present invention, wherein: a straight notch is also provided on the side of the sleeve; the monitoring component includes a connecting frame and a proximity switch, one end of the connecting frame is connected to the upper end of the connecting tube and slidably cooperates with the straight notch, and is connected to the proximity switch away from one end of the connecting tube.

[0009] As a preferred solution of the automobile sampling machine trolley anti-derailment device of the present invention, the joint includes a straight cylinder and a clamping plate, the straight cylinder is arranged at the upper end of the upper cover, and the clamping plate is connected to one end of the straight cylinder.

[0010] As a preferred solution of the automobile sampling machine trolley anti-derailment device described in the present invention, the fixing assembly includes a base, a channel, a slot, a block, and a second spring. The base is arranged at the lower end of the mobile device, the channel is arranged in the middle of the base, the slot is axially distributed on the side of the channel, the block is slidably matched with the slot, and the second spring is arranged between the bottom of the slot and the block; the lower end of the block is provided with a first inclined surface.

[0011] As a preferred embodiment of the anti-derailment device for the automobile sampling machine trolley of the present invention, the disengagement assembly includes a rotating cylinder, a disengagement cylinder, an operating cylinder, and a third spring. The rotating cylinder is rotatably arranged in the straight cylinder. The disengagement cylinder and the operating cylinder are both sleeved on the outside of the straight cylinder. The operating cylinder is arranged at the lower end of the disengagement cylinder. The third spring is arranged between the upper cover and the lower end of the operating cylinder.

[0012] As a preferred solution of the automobile sampling machine trolley anti-derailment device described in the present invention, wherein: the side of the straight cylinder is provided with a vertical groove; the side of the rotating cylinder is provided with a first spiral groove and a second spiral groove, and the first spiral groove is provided at the upper end of the second spiral groove; the inner wall of the disengagement cylinder is provided with a first connecting rod, and the inner wall of the operating cylinder is provided with a second connecting rod, the first connecting rod and the second connecting rod are both slidably matched with the vertical groove, the first connecting rod is slidably matched with the first spiral groove, and the second connecting rod is slidably matched with the second spiral groove.

[0013] As a preferred solution of the anti-derailment device for the automobile sampling machine trolley of the present invention, the upper end of the disengagement cylinder is also provided with a ring platform, and the ring platform is circumferentially provided with notches; the lower end of the clamping plate is also provided with a ring groove, and the side wall is distributed with square grooves, and the ring groove matches the ring platform; the outer side of the ring groove is circumferentially provided with a long groove and a circular groove, the long groove is arranged in the middle of the circular groove, and the circular groove runs through the clamping plate.

[0014] As a preferred solution of the anti-derailment device for the automobile sampling machine trolley of the present invention, the ring platform also includes a round table and a fourth spring, the round table is slidably matched with the notch, and the fourth spring is arranged between the bottom of the notch and the round table; the upper end of the round table is provided with a second inclined surface.

[0015] As a preferred solution of the automobile sampling machine trolley anti-derailment device described in the present invention, the clamping plate also includes a round rod, which is arranged in the circular groove; the round rod is also provided with a baffle and a fifth spring, the baffle is arranged in the middle of the round rod and slides with the long groove, and the fifth spring is arranged between the baffle and the long groove; the round rod is also provided with a third inclined surface on the lower side of one end away from the annular groove.

[0016] The beneficial effects of the present invention are as follows: by automatically adjusting the sensing distance between the proximity switch and the rail by the expansion and contraction of the spring in the anti-derail mechanism, it is further ensured that the large vehicle can run on the rail safely and reliably, and the potential safety hazard of the large vehicle running on the uneven track is solved; and by arranging the connecting mechanism, the anti-derail mechanism can be quickly disassembled and assembled, and it is convenient to regularly inspect, maintain and replace the spring performance in the anti-derail mechanism, and it is ensured that the spring is flexible in expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive efforts. Among them:

[0018] Figure 1 is a scene diagram of the anti-derailment device for the vehicle sampling machine trolley.

[0019] Figure 2 is a structural diagram of the anti-derailment device for the vehicle sampling machine trolley.

[0020] Figure 3 is a diagram of the joint structure of the anti-derailment device for the trolley of the automobile sampling machine.

[0021] Figure 4 is a cross-sectional view of the joint of the anti-derailment device for the traveling vehicle sampler.

[0022] Figure 5 is a structural diagram of the disengagement cylinder and operating cylinder of the anti-derailment device for the trolley of the automobile sampling machine.

[0023] Figure 6 is a cross-sectional view of the disengagement tube of the anti-derailment device for the traveling vehicle sampling machine.

[0024] Figure 7 is a cross-sectional view of the fixed components of the anti-derailment device for the vehicle sampling machine trolley.

[0025] Figure 8 is a schematic diagram of the connection mechanism principle of the anti-derailment device for the traveling vehicle sampling machine.

[0026] In the figure: anti-derail mechanism 100, protection component 101, monitoring component 102, connecting mechanism 200, joint 201, fixing component 202, disengaging component 203, sleeve 101a, upper cover 101b, first spring 101c, bracket 101d, track wheel 101e, connecting tube 101f, straight notch 101g, connecting frame 102a, proximity switch 102b, straight tube 201a, card plate 201b, base 202a, channel 202b, slot 202c, block 202d, second spring 202 e, first inclined surface 202f, rotating cylinder 203a, disengaging cylinder 203b, operating cylinder 203c, third spring 203d, vertical groove 201c, first spiral groove 203e, second spiral groove 203f, first connecting rod 203g, second connecting rod 203h, annular platform 204, notch 204a, square groove 201d, long groove 205a, circular groove 205b, circular platform 204b, fourth spring 204c, second inclined surface 204d, round rod 206, baffle 206a, fifth spring 206b, third inclined surface 206c. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] 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 different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] 1 and 2 , a first embodiment of the present invention is shown. This embodiment provides a vehicle sampling machine trolley anti-derail device, which includes an anti-derail mechanism 100 and a connecting mechanism 200 .

[0032] Specifically, the anti-derail mechanism 100 includes a protection component 101 and a monitoring component 102. The protection component 101 is arranged at the front end of the mobile device running wheel, and the monitoring component 102 is connected to the protection component 101;

[0033] The protection component 101 protects the monitoring component 102 from being damaged by the track. The monitoring component 102 is responsible for monitoring the distance between it and the track in real time, and promptly issuing a vehicle derailment alarm to prevent the occurrence of derailment incidents.

[0034] The connecting mechanism 200 includes a connector 201, a fixing assembly 202, and a disconnecting assembly 203. The connector 201 is provided at the upper end of the protection assembly 101. The fixing assembly 202 is provided at the bottom end of the mobile device and is detachably connected to the connector 201. The disconnecting assembly 203 is provided on the connector 201.

[0035] The connector 201 can be connected when it is inserted into the fixed assembly 202. The connector 201 can be disconnected from the fixed assembly 202 by disengaging the assembly 203, so that the anti-derail mechanism 100 can be inspected, maintained, and replaced.

[0036] Specifically, the protection assembly 101 includes a sleeve 101a, an upper cover 101b, a first spring 101c, a bracket 101d, a track wheel 101e, and a connecting tube 101f. The upper cover 101b is detachably connected to the upper end of the sleeve 101a, the bracket 101d is disposed at the lower end of the upper cover 101b, the first spring 101c is sleeved on the outside of the bracket 101d, one end of the connecting tube 101f is hinged to the track wheel 101e, the outer side of the end away from the track wheel 101e is slidably engaged with the inner side of the sleeve 101a, and the bracket 101d is slidably engaged with the inner wall of the connecting tube 101f.

[0037] It is worth noting that the upper cover 101b and the sleeve 101a are detachably connected, which is convenient for the later inspection and maintenance of the performance of the first spring 101c. The connection method is the existing technology and will not be described here. The setting of the first spring 101c makes the proximity switch 102b rise or fall with the running status of the track wheel 101e. The purpose of this is to allow the proximity switch 102b to always sense each other with the track to ensure that the vehicle runs safely on the track.

[0038] Specifically, a straight notch 101g is further provided on the side of the sleeve 101a; the monitoring assembly 102 includes a connecting frame 102a and a proximity switch 102b. One end of the connecting frame 102a is connected to the upper end of the connecting tube 101f and slides with the straight notch 101g, and the end away from the connecting tube 101f is connected to the proximity switch 102b;

[0039] The lower end of the straight slot 101g can limit the proximity switch 102b from continuing to descend. It is worth noting that the connecting frame 102a and the lower end of the first spring 101c are on the same plane, and the length of the connecting frame 102a should be sufficient to ensure that the lower end of the proximity switch 102b is 1-1.5CM away from the track wheel 101e, that is, the lower end of the proximity switch 102b is 1-1.5CM away from the track contact surface.

[0040] When in use, when the track wheel 101e is running above the horizontal plane of the track, the first spring 101c will be compressed. Since the connecting frame 102a and the lower end of the first spring 101c are in the same plane, after the first spring 101c is compressed, the connecting frame 102a rises and the proximity switch 102b also rises at the same time. However, the contact surface distance between the proximity switch 102b and the track is always maintained at a distance of 1-1.5CM, that is, the proximity switch 102b signal can always be sensed by the track and will not falsely report a track derailment signal. On the contrary, when running below When the track is in a horizontal position, the first spring 101c will extend (Note: the first spring 101c must be in a compressed state during installation to ensure a certain elastic force). Since the connecting frame 102a and the lower end of the first spring 101c are in the same plane, after the first spring 101c extends, the connecting frame 102a will drop accordingly, and the proximity switch 102b will also drop at the same time. However, the contact surface distance between the proximity switch 102b and the track is always maintained at a distance of 1-1.5CM. The signal of the proximity switch 102b can always be sensed by the track, and there will be no false alarm of track derailment signal. During the sampling process, the sampling machine's auger will drill into some hard materials during the descent process, and the cart will be lifted up. When the cart is lifted up, the first spring 101c will extend rapidly, and the connecting frame 102a will be pushed to the lower end of the straight slot 101g. At this time, the proximity switch 102b will no longer continue to decline. The sensing distance between the proximity switch 102b and the track increases due to the cart being lifted up, and the proximity switch 102b sensing signal disappears instantly, and a cart derailment alarm is issued in time. The entire sampler loses power and the sampling process is interrupted, effectively protecting the sampler from the occurrence of a cart derailment incident. Secondly, the anti-derail protection mechanism should strengthen daily inspections, regularly inspect and maintain the performance of the first spring 101c, and ensure that the spring is flexible. During inspection, the joint 201 needs to be separated from the fixing assembly 202 by disengaging the assembly 203, so as to complete the disassembly between the anti-derail device and the cart, and then the upper cover 101b can be opened to inspect and maintain the spring performance.

[0041] Example 2

[0042] 2 to 8 , a second embodiment of the present invention is shown, which is based on the previous embodiment.

[0043] Specifically, the connector 201 includes a straight tube 201a and a clamping plate 201b. The straight tube 201a is disposed on the upper end of the upper cover 101b, and the clamping plate 201b is connected to one end of the straight tube 201a.

[0044] Specifically, the fixing assembly 202 includes a base 202a, a channel 202b, a slot 202c, a block 202d, and a second spring 202e. The base 202a is disposed at the lower end of the mobile device, the channel 202b is disposed in the middle of the base 202a, the slot 202c is axially distributed on the side of the channel 202b, the block 202d is slidably engaged with the slot 202c, and the second spring 202e is disposed between the bottom of the slot 202c and the block 202d; a first inclined surface 202f is disposed at the lower end of the block 202d.

[0045] Channel 202b is used to insert the card plate 201b. In the initial state, the second spring 202e is at its original length, the block 202d extends out of the slot 202c, and the first inclined surface 202f faces the entrance of the channel 202b. During connection, when the card plate 201b is inserted into the channel 220b, the edge of the card plate 201b contacts the first inclined surface 202f, which then presses the block 202d completely into the slot 202c. When the card plate 201b reaches the end of the channel 202b, the block 202d extends just enough to secure the card plate 201b, thus completing the connection between the connector 201 and the fixing assembly 202.

[0046] Specifically, the disengaging assembly 203 includes a rotating cylinder 203a, a disengaging cylinder 203b, an operating cylinder 203c, and a third spring 203d. The rotating cylinder 203a is rotatably arranged in the straight cylinder 201a. The disengaging cylinder 203b and the operating cylinder 203c are both sleeved on the outside of the straight cylinder 201a. The operating cylinder 203c is arranged at the lower end of the disengaging cylinder 203b. The third spring 203d is arranged between the upper cover 101b and the lower end of the operating cylinder 203c; the rotating cylinder 203a is used to drive the disengaging cylinder 203b to move upward so as to press the card block 202d into the card slot 202c again. The outer diameter of the disengaging cylinder 203b should be consistent with the outer diameter of the card plate 201b. The operating cylinder 203c can drive the rotation of the rotating cylinder 203a. The third spring 203d is used to stabilize the initial position of the operating cylinder 203c.

[0047] Specifically, a vertical groove 201c is provided on the side of the straight cylinder 201a; a first spiral groove 203e and a second spiral groove 203f are provided on the side of the rotating cylinder 203a, and the first spiral groove 203e is provided at the upper end of the second spiral groove 203f; a first connecting rod 203g is provided on the inner wall of the disengaging cylinder 203b, and a second connecting rod 203h is provided on the inner wall of the operating cylinder 203c. The first connecting rod 203g and the second connecting rod 203h are both slidably engaged with the vertical groove 201c, the first connecting rod 203g is slidably engaged with the first spiral groove 203e, and the second connecting rod 203h is slidably engaged with the second spiral groove 203f.

[0048] The vertical groove 201c limits the disengaging cylinder 203b and the operating cylinder 203c to move only in the axial direction. It is worth noting that the rotation directions of the first spiral groove 203e and the second spiral groove 203f are opposite, and in the initial state, the lower end of the first spiral groove 203e and the upper end of the second spiral groove 203e are both in the vertical groove 201c. In the initial state, the upper end of the operating cylinder 203c is in contact with the lower end of the disengaging cylinder 203b. When the operating cylinder 203c is moved downward, the second connecting rod 203h will drive the rotating cylinder 203a to rotate, thereby driving the first connecting rod 203g and the disengaging cylinder 203b to move upward. When the second connecting rod 203h moves to the lower end of the second spiral groove 203e, the upper end of the disengaging cylinder 203b is in contact with the lower end of the clamping plate 201b, and at this time the clamping block 202d is pressed into the clamping groove 202c.

[0049] Specifically, the upper end of the disengaging cylinder 203b is further provided with an annular platform 204, and the annular platform 204 is circumferentially provided with notches 204a; the lower end of the clamping plate 201b is further provided with an annular groove 205, and the side wall is distributed with square grooves 201d, and the annular groove 205 matches the annular platform 204; the outer side of the annular groove 205 is circumferentially provided with a long groove 205a and a circular groove 205b, and the long groove 205a is set in the middle of the circular groove 205b, and the circular groove 205b passes through the clamping plate 201b;

[0050] When the upper end of the disengaging cylinder 203 b is in contact with the lower end of the clamping plate 201 b , the annular platform 204 extends into the annular groove 205 .

[0051] Specifically, the annular platform 204 also includes a circular platform 204b and a fourth spring 204c. The circular platform 204b is slidably engaged with the slot 204a, and the fourth spring 204c is arranged between the bottom of the slot 204a and the circular platform 204b; a second inclined surface 204d is provided on the upper end of the circular platform 204b; in the initial state, the circular platform 204b extends out of the slot 204a, and the fourth spring 204c is in its original length state.

[0052] Specifically, the clamping plate 201b further includes a round rod 206, which is disposed in the circular groove 205b; the round rod 206 is further provided with a baffle 206a and a fifth spring 206b. The baffle 206a is disposed in the middle of the round rod 206 and slidably engages with the long groove 205a. The fifth spring 206b is disposed between the baffle 206a and the long groove 205a. A third inclined surface 206c is further provided on the lower side of the end of the round rod 206 away from the annular groove 205.

[0053] In the initial state, the round rod 206 is completely located in the round groove 205b.

[0054] When the disengaging cylinder 203b moves upward, the second inclined surface 204d contacts the outer edge of the annular groove 205 and is squeezed into the notch 204a. When the upper end of the disengaging cylinder 203b fits the lower end of the card plate 201b, the notch 204a and the circular groove 205b are Coaxially, under the action of the fourth spring 204c, the cone 204b extends into the circular groove 205b, squeezing the round rod 206 out of the circular groove 205b. At this time, the disengaging tube 203b is connected to the card plate 201b, and the third inclined surface 206c extends into the square groove 201d. At this time, the connector 201 can be directly pulled out to complete the disengagement. In the process of pulling out the connector 201, the block 202d will extend into the square groove 201d under the action of the second spring 202e and slide with the square groove 201d. During the sliding process, the outer edge of the block 202d will contact the third inclined surface 206c and press it into the circular groove 205b, and then the round rod 206c squeezes the cone 204b into the circular groove 205b. At this time, under the action of the third spring 203d, the operating tube 203c returns to its original position, and the disengaging tube 203b is disengaged from the card plate 201b and reset.

[0055] In use, when it is necessary to disassemble the anti-derail device and the trolley, it is necessary to pull downwards to disengage the cylinder 203b to the lower end of the upper cover 101b, so as to remove the connection between the anti-derail device and the trolley. When it is necessary to install the anti-derail device, it is only necessary to align the joint 201 with the passage 202b and insert it into its bottom.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A vehicle sampling machine vehicle anti-derailment device, characterized in that: include, The anti-derailment mechanism (100) comprises a protection component (101) and a monitoring component (102), wherein the protection component (101) is arranged at the front end of the running wheel of the mobile equipment, and the monitoring component (102) is connected to the protection component (101); The connection mechanism (200) comprises a joint (201), a fixing component (202), and a disengaging component (203); the joint (201) is arranged at the upper end of the protection component (101); the fixing component (202) is arranged at the bottom end of the mobile device and is detachably connected to the joint (201); the disengaging component (203) is arranged on the joint (201); the protection component (101) comprises a sleeve (101a), an upper cover (101b), a first spring (101c), a bracket (101d), a track wheel (101e), and a connecting tube (101f); the upper cover (101b) is detachably connected to the upper end of the sleeve (101a); The bracket (101d) is arranged at the lower end of the upper cover (101b), the first spring (101c) is sleeved on the outside of the bracket (101d), one end of the connecting tube (101f) is hinged to the track wheel (101e), the outer side of the end away from the track wheel (101e) is slidably matched with the inner side of the sleeve (101a), and the bracket (101d) is slidably matched with the inner wall of the connecting tube (101f); the joint (201) comprises a straight tube (201a) and a clamping plate (201b), the straight tube (201a) is arranged at the upper end of the upper cover (101b), and the clamping plate (201b) is connected to one end of the straight tube (201a); The disengagement assembly (203) comprises a rotating cylinder (203a), a disengagement cylinder (203b), an operating cylinder (203c), and a third spring (203d); the rotating cylinder (203a) is rotatably arranged in the straight cylinder (201a); the disengagement cylinder (203b) and the operating cylinder (203c) are both sleeved on the outside of the straight cylinder (201a); the operating cylinder (203c) is arranged at the lower end of the disengagement cylinder (203b); and the third spring (203d) is arranged between the upper cover (101b) and the lower end of the operating cylinder (203c); The side of the straight cylinder (201a) is provided with a vertical groove (201c); A first spiral groove (203e) and a second spiral groove (203f) are arranged on the side of the rotating drum (203a), and the first spiral groove (203e) is arranged at the upper end of the second spiral groove (203f); The inner wall of the disengagement cylinder (203b) is provided with a first connecting rod (203g), and the inner wall of the operating cylinder (203c) is provided with a second connecting rod (203h). The first connecting rod (203g) and the second connecting rod (203h) are both slidably matched with the vertical groove (201c), the first connecting rod (203g) is slidably matched with the first spiral groove (203e), and the second connecting rod (203h) is slidably matched with the second spiral groove (203f).

2. The vehicle sampling machine vehicle anti-derailment device according to claim 1, characterized in that: The side surface of the sleeve (101a) is also provided with a straight notch (101g); The monitoring assembly (102) comprises a connecting frame (102a) and a proximity switch (102b); one end of the connecting frame (102a) is connected to the upper end of the connecting tube (101f) and is slidably matched with the straight slot (101g) and is away from the connecting tube (101f). The end is connected to the proximity switch (102b).

3. The vehicle sampling machine vehicle anti-derailment device as claimed in claim 2, characterized in that: The fixing assembly (202) comprises a base (202a), a channel (202b), a card slot (202c), a card block (202d), and a second spring (202e); the base (202a) is arranged at the lower end of the mobile device; the channel (202b) is arranged in the middle of the base (202a); the card slot (202c) is axially distributed on the side of the channel (202b); the card block (202d) is slidably matched with the card slot (202c); and the second spring (202e) is arranged between the bottom of the card slot (202c) and the card block (202d); The lower end of the block (202d) is provided with a first inclined surface (202f).

4. The vehicle sampling machine vehicle anti-derailment device as claimed in claim 3, characterized in that: The upper end of the disengagement cylinder (203b) is also provided with a ring platform (204), and the ring platform (204) is provided with notches (204a) distributed in the circumferential direction; The lower end of the clamping plate (201b) is also provided with an annular groove (205), and the side wall is provided with square grooves (201d), and the annular groove (205) matches the annular platform (204); the outer side of the annular groove (205) is provided with a long groove (205a) and a circular groove (205b) in a circumferential direction, and the long groove (205a) is provided in the middle of the circular groove (205b), and the circular groove (205b) runs through the clamping plate (201b).

5. The vehicle sampling machine vehicle anti-derailment device as claimed in claim 4, characterized in that: The annular platform (204) further comprises a truncated platform (204b) and a fourth spring (204c), wherein the truncated platform (204b) is slidably matched with the notch (204a), and the fourth spring (204c) is arranged between the bottom of the notch (204a) and the truncated platform (204b); The upper end of the truncated cone (204b) is provided with a second inclined surface (204d).

6. The anti-derailment device for automobile sampling machine as claimed in claim 5, characterized in that: The clamping plate (201b) further comprises a round rod (206), and the round rod (206) is arranged in the round groove (205b); The round rod (206) is also provided with a baffle (206a) and a fifth spring (206b); the baffle (206a) is provided at the middle of the round rod (206) and is slidably matched with the long slot (205a); the fifth spring (206b) is provided between the baffle (206a) and the long slot (205a); A third inclined surface (206c) is also provided on the lower side of one end of the round rod (206) away from the annular groove (205).

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