Automotive sampler cart derailment prevention device
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- HUANENG PINGLIANG POWER GENERATION CO LTD
- Filing Date
- 2023-10-26
- Publication Date
- 2026-08-03
AI Technical Summary
【0015】 本発明の有益な効果は以下のとおりである。脱線防止機構において、バネの伸縮によって近接スイッチとレールとの感知距離を自動的に調整することにより、カートが安全で確実にレール上を走行できることをさらに確保し、カートが不平坦なレール上を走行する時の潜在的な安全上の問題を解決し、また、接続機構を設置することにより、脱線防止機構を迅速に着脱することができ、よって、脱線防止機構中のバネに対する定期的な性能検査と保守及び交換が容易になり、バネの伸縮柔軟性が確保される。
Smart Images
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Abstract
Description
Technical Field
[0005] , ,
[0001] The present invention relates to the technical field of preventing derailment of large mobile devices in thermal power plants, and particularly to a device for preventing derailment of a cart running of an automobile sampler.
Background Art
[0002] When an automobile sampler performs sampling, since stones, frozen coal or metal materials are mixed in the coal, once the auger of the sampler hits these hard substances during descent, the sampling bit will push up the entire cart mechanism of the sampler, causing the cart running wheels to deviate from the rail. As a result, in the case of minor problems, the cart cannot run, and in serious cases, the overhead crane will fall, causing damage to personnel or damage to coal transport vehicles, which may cause major accidents. In addition, some of the automobile samplers have a long operation years, the cart running rails are not flat and are severely deformed. Even if a derailment prevention proximity switch is installed on the sampler, it is difficult to grasp the sensing distance of the proximity switch due to the uneven rails, and the proximity switch is easily rubbed off during the running of the cart and cannot play a role in protecting the cart running mechanism of the sampler. [[ID=X]]
Summary of the Invention
[0003] In view of the problems existing in the above-mentioned conventional device for preventing derailment of a cart running of an automobile sampler, the present invention is proposed.
[0004] Therefore, the problem to be solved by the present invention is how to avoid damage to the device for preventing derailment of a cart running of an automobile sampler.
[0005] To solve the above technical problems, the present invention provides the following technical solution: a cart derailment prevention device for an automobile sampler, comprising: a derailment prevention mechanism including a protective assembly provided at the front end of the running wheels of the moving device and a monitoring assembly connected to the protective assembly; and a connection mechanism including a coupling provided at the upper end of the protective assembly, a fixed assembly provided at the bottom end of the moving device and detachably connected to the coupling, and a separation assembly provided at the coupling.
[0006] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, the protective assembly includes a sleeve, an upper cover detachably connected to the upper end of the sleeve, a first spring, a holder provided at the lower end of the upper cover, a rail wheel, and a connecting sleeve, wherein the first spring is fitted to the outside of the holder, the connecting sleeve has one end hinged to the rail wheel, the outer end of which is spaced apart from the rail wheel slides against the inside of the sleeve, and the holder slides against the inner wall of the connecting sleeve.
[0007] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, a straight groove is further provided on the side surface of the sleeve, the monitoring assembly includes a connecting holder and a proximity switch, the connecting holder having one end connected to the upper end of the connecting sleeve and slidably fitted into the straight groove, and the end separated from the connecting sleeve being connected to the proximity switch.
[0008] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, the coupling includes a straight cylinder provided at the upper end of the upper cover and an engaging plate connected to the end of the straight cylinder that is spaced apart from the engaging plate.
[0009] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, the fixed assembly includes a base provided at the lower end of the moving device, a passage provided in the middle of the base, a fitting groove distributed axially on the side surface of the passage, a fitting block that slides into the fitting groove, and a second spring provided between the bottom of the fitting groove and the fitting block, wherein a first inclined surface is provided at the lower end of the fitting block.
[0010] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, the separation assembly includes a rotating drum rotatably provided within the straight cylinder, a separation cylinder, an operating cylinder, and a third spring, wherein both the separation cylinder and the operating cylinder are fitted to the outside of the straight cylinder, the operating cylinder is provided at the lower end of the separation cylinder, and the third spring is installed between the upper cover and the lower end of the operating cylinder.
[0011] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, a vertical groove is provided on the side surface of the straight cylinder, a first helical groove and a second helical groove are provided on the side surface of the rotating drum, the first helical groove is provided at the upper end of the second helical groove, a first connecting rod is provided on the inner wall of the separation cylinder, a second connecting rod is provided on the inner wall of the operating cylinder, both the first connecting rod and the second connecting rod are slidable into the vertical groove, the first connecting rod is slidable into the first helical groove, and the second connecting rod is slidable into the second helical groove.
[0012] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, a ring-shaped base is further provided at the upper end of the separation cylinder, notches are distributed around the circumferential direction of the ring-shaped base, the engagement plate has a ring-shaped groove at its lower end and angular grooves distributed on its side walls, the ring-shaped groove aligns with the ring-shaped base, and elongated grooves and circular grooves are distributed around the circumferential direction outside the ring-shaped groove, the elongated groove is provided in the middle of the circular groove, and the circular groove penetrates the ring-shaped groove and the outside of the engagement plate.
[0013] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, the ring-shaped base further includes a circular base that slides into the notch and a fourth spring provided between the bottom of the notch and the circular base, and a second inclined surface is provided at the upper end of the circular base.
[0014] In a preferred embodiment of the cart derailment prevention device for an automobile sampler described in the present invention, the engaging plate further includes a round bar provided in the circular groove, the round bar further includes a baffle provided in the middle of the round bar and slidingly fitted into the elongated groove, and a fifth spring provided between the baffle and the elongated groove, and a third inclined surface further is provided on the lower side of the end of the round bar that is separated from the ring-shaped groove.
[0015] The beneficial effects of the present invention are as follows: In the derailment prevention mechanism, the sensing distance between the proximity switch and the rail is automatically adjusted by the expansion and contraction of a spring, further ensuring that the cart can run safely and reliably on the rail, solving potential safety problems when the cart runs on uneven rails, and by installing a connecting mechanism, the derailment prevention mechanism can be quickly attached and detached, thereby facilitating periodic performance inspections, maintenance, and replacement of the spring in the derailment prevention mechanism, and ensuring the flexibility of the spring's expansion and contraction. [Brief explanation of the drawing]
[0016] To more clearly explain the technical solutions in the embodiments of the present invention, the drawings used in describing the embodiments will be briefly described below. However, naturally, the drawings described below represent only a part of the embodiments of the present invention, and those skilled in the art can conceive of other drawings based on these drawings without requiring any creative effort. [Figure 1] This is a scene diagram of the cart derailment prevention device for an automobile sampler. [Figure 2] This is a structural diagram of the cart derailment prevention device for an automobile sampler. [Figure 3]This is a structural diagram of the coupling for the cart derailment prevention device of an automobile sampler. [Figure 4] This is a cross-sectional view of the joint section of the cart derailment prevention device for an automobile sampler. [Figure 5] This is a structural diagram of the separation cylinder and operating cylinder of the cart derailment prevention device for an automobile sampler. [Figure 6] This is a cross-sectional view of the separation cylinder of the cart derailment prevention device for an automobile sampler. [Figure 7] This is a cross-sectional view of the fixing assembly of the cart derailment prevention device for an automotive sampler. [Figure 8] This is a schematic diagram illustrating the principle of the connection mechanism for the cart derailment prevention device of an automobile sampler. [Modes for carrying out the invention]
[0017] To make the above-mentioned objectives, features, and advantages of the present invention easier to understand, specific embodiments of the present invention will be described in detail below with reference to the drawings in the specification.
[0018] The following description contains a great deal of specific details in order to fully understand the present invention, but the present invention may be carried out in other forms different from those described herein, and those skilled in the art can similarly popularize the invention without violating its scope. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0019] Next, the terms “one embodiment” or “example” as used herein refer to specific features, configurations, or characteristics that may be included in at least one embodiment of the present invention. The phrase “in one embodiment” appearing in different parts of this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either alone or selectively.
[0020] Example 1 Referring to FIGS. 1 and 2 which are the first embodiment of the present invention, this embodiment provides a device for preventing a cart of an automobile sampler from derailing. The device for preventing a cart of an automobile sampler from derailing includes a derail prevention mechanism 100 and a connection mechanism 200.
[0021] Specifically, the derail prevention mechanism 100 includes a protection assembly 101 provided at the front end of the running wheel of the moving device, and a monitoring assembly 102 connected to the protection assembly 101. The protection assembly 101 protects the monitoring assembly 102 from damage caused by rubbing against the rail. The monitoring assembly 102 is responsible for monitoring the distance from the rail in real time and issuing a cart derail warning in a timely manner, thereby preventing the occurrence of a derailment event.
[0022] The connection mechanism 200 includes a joint 201 provided at the upper end of the protection assembly 101, a fixed assembly 202 provided at the bottom end of the moving device and removably connected to the joint 201, and a separation assembly 203 provided on the joint 201. When the joint 201 is inserted into the fixed assembly 202, the connection is completed. The joint 201 and the fixed assembly 202 can be separated by the separation assembly 203, which facilitates the inspection, maintenance and replacement of the derail prevention mechanism 100.
[0023] Specifically, the protection assembly 101 includes a sleeve 101a, an upper cover 101b removably connected to the upper end of the sleeve 101a, a first spring 101c, a holder 101d provided at the lower end of the upper cover 101b, a rail wheel 101e, and a connection sleeve 101f. The first spring 101c is fitted outside the holder 101d. One end of the connection sleeve 101f is hinged to the rail wheel 101e, and the outer side of the end separated from the rail wheel 101e is slidably engaged with the inside of the sleeve 101a. The holder 101d is slidably engaged with the inner wall of the connection sleeve 101f. It should be explained that the upper cover 101b and sleeve 101a are detachably connected, which facilitates subsequent inspection and maintenance of the performance of the first spring 101c. As the connection method is conventional, it will not be explained again here. With the installation of the first spring 101c, the proximity switch 102b also rises and falls in accordance with the running state of the rail wheel 101e. In this way, the proximity switch 102b constantly guides the rail and ensures that the cart runs safely on the rail.
[0024] Specifically, a straight groove 101g is provided on the side of the sleeve 101a, and the monitoring assembly 102 includes a connection holder 102a and a proximity switch 102b, the connection holder 102a having one end connected to the upper end of the connection sleeve 101f and sliding into the straight groove 101g, and the end separated from the connection sleeve 101f being connected to the proximity switch 102b. The lower end of the straight groove 101g can be used to restrict the proximity switch 102b from continuing to descend further, and it should be noted that the connecting holder 102a is flush with the lower end of the first spring 101c, and the length of the connecting holder 102a should satisfy the condition that the lower end of the proximity switch 102b is 1 to 1.5 cm away from the rail wheel 101e, i.e., the lower end of the proximity switch 102b is 1 to 1.5 cm away from the rail contact surface.
[0025] When the rail wheel 101e is running above the horizontal plane of the rail during use, the first spring 101c is compressed. Since the connecting holder 102a is flush with the lower end of the first spring 101c, when the first spring 101c is compressed, the connecting holder 102a rises accordingly, and the proximity switch 102b also rises simultaneously. However, the distance between the proximity switch 102b and the rail contact surface is always maintained at 1 to 1.5 cm. In other words, the signal from the proximity switch 102b can always be guided to the rail, so it is not possible to mistakenly send a rail derailment signal. Conversely, when the rail is running below the horizontal plane of the rail... When the train is running, the first spring 101c extends (Note: The first spring 101c needs to be in a compressed state when installed in order to guarantee a certain elastic force), and since the connecting holder 102a is flush with the lower end of the first spring 101c, when the first spring 101c extends, the connecting holder 102a descends accordingly, and the proximity switch 102b also descends at the same time. However, the distance between the proximity switch 102b and the rail contact surface is always maintained at 1 to 1.5 cm, meaning that the signal from the proximity switch 102b can always be guided to the rail, so it is not possible to mistakenly send a rail derailment signal. During the sampling process, when the sampler auger hits some hard material while descending, the cart is pushed up. After the cart is pushed up, the first spring 101c rapidly extends, and the connecting holder 102a is pressed against the lower end of the straight groove 101g. At this point, the proximity switch 102b cannot continue descending further, and the sensing distance between the proximity switch 102b and the rail increases due to the pushed-up cart. When the sensing signal of the proximity switch 102b disappears for a moment, it promptly issues a cart derailment alarm, causing the entire sampler to lose power and the sampler to malfunction. The flow is interrupted, thereby effectively protecting the sampler from cart derailment events. The derailment prevention protection mechanism requires enhanced daily inspections to ensure the flexibility of the spring, and regular performance testing and maintenance of the first spring 101c is necessary. During inspection, the coupling 201 and the fixing assembly 202 must be separated by the separation assembly 203, thereby completing the removal of the derailment prevention device from the cart. After that, the upper cover 101b can be opened to perform performance testing and maintenance of the spring.
[0026] Example 2 Referring to Figures 2 to 8, which represent a second embodiment of the present invention, this embodiment is based on the previous embodiment.
[0027] Specifically, the joint 201 includes a straight cylinder 201a provided at the upper end of the upper cover 101b, and an engaging plate 201b connected to the end of the straight cylinder 201a that is spaced apart from the engaging plate 201b, Specifically, the fixed assembly 202 includes a base 202a provided at the lower end of the moving device, a passage 202b provided in the middle of the base 202a, a fitting groove 202c distributed axially on the side of the passage 202b, a fitting block 202d that slides into the fitting groove 202c, and a second spring 202e provided between the bottom of the fitting groove 202c and the fitting block 202d, wherein a first inclined surface 202f is provided at the lower end of the fitting block 202d. The passage 202b is used to insert the engaging plate 201b. In the initial state, the second spring 202e is at its initial length, the fitting block 202d protrudes from the fitting groove 202c, and the first inclined surface 202f faces the entrance of the passage 202b. During connection, the engaging plate 201b is inserted into the passage 220b, the edge of the engaging plate 201b contacts the first inclined surface 202f, and then the fitting block 202d is fully pushed into the fitting groove 202c. When the engaging plate 201b extends to the end of the passage 202b, the fitting block 202d protrudes and can fix the engaging plate 201b, thus completing the connection between the joint 201 and the fixing assembly 202.
[0028] Specifically, the separation assembly 203 includes a rotating drum 203a rotatably mounted within the straight cylinder 201a, a separation cylinder 203b, an operating cylinder 203c, and a third spring 203d, wherein both the separation cylinder 203b and the operating cylinder 203c are fitted to the outside of the straight cylinder 201a, the operating cylinder 203c is located at the lower end of the separation cylinder 203b, and the third spring 203d is installed between the upper cover 101b and the lower end of the operating cylinder 203c. The rotating drum 203a is used to drive the separation cylinder 203b upward, thereby easily pushing the fitting block 202d back into the fitting groove 202c, so that the outer diameter of the separation cylinder 203b matches the outer diameter of the engagement plate 201b, the operating cylinder 203c can drive the rotation of the rotating drum 203a, and the third spring 203d is used to stabilize the initial position of the operating cylinder 203c.
[0029] Specifically, a vertical groove 201c is provided on the side of the straight cylinder 201a, a first helical groove 203e and a second helical groove 203f are provided on the side of the rotating drum 203a, the first helical groove 203e is provided at the upper end of the second helical groove 203f, a first connecting rod 203g is provided on the inner wall of the separation cylinder 203b, and a second connecting rod 203h is provided on the inner wall of the operating cylinder 203c, both the first connecting rod 203g and the second connecting rod 203h are slidable into the vertical groove 201c, the first connecting rod 203g is slidable into the first helical groove 203e, and the second connecting rod 203h is slidable into the second helical groove 203f. The vertical groove 201c restricts the separation cylinder 203b and the operating cylinder 203c to moving only in the axial direction, and it should be noted that the rotation directions of the first helical groove 203e and the second helical groove 203f are opposite, and in the initial state, the lower end of the first helical groove 203e and the upper end of the second helical groove 203e are both within the vertical groove 201c, and in the initial state, the upper end of the operating cylinder 203c is attached to the lower end of the separation cylinder 203b, and the operating cylinder 203c When moving downwards, the second connecting rod 203h drives the rotating drum 203a to rotate, and further drives the first connecting rod 203g and the separating cylinder 203b to move upwards. When the second connecting rod 203h moves to the lower end of the second helical groove 203e, the upper end of the separating cylinder 203b is pressed against the lower end of the engaging plate 201b, and at this time, the fitting block 202d is pushed into the fitting groove 202c.
[0030] Specifically, a ring-shaped base 204 is provided at the upper end of the separation cylinder 203b, and notches 204a are distributed around the circumferential direction of the ring-shaped base 204. The engaging plate 201b has a ring-shaped groove 205 at its lower end, and angular grooves 201d are distributed along its side walls. The ring-shaped groove 205 aligns with the ring-shaped base 204, and elongated grooves 205a and circular grooves 205b are distributed around the outside of the ring-shaped groove 205. The elongated groove 205a is located in the middle of the circular groove 205b, and the circular groove 205b penetrates the outside of the ring-shaped groove 205 and the engaging plate 201b. When the upper end of the separation cylinder 203b is attached to the lower end of the engagement plate 201b, the ring-shaped base 204 extends into the ring-shaped groove 205.
[0031] Specifically, the ring-shaped base 204 further includes a circular base 204b that slides into the notch 204a, and a fourth spring 204c provided between the bottom of the notch 204a and the circular base 204b, with a second inclined surface 204d provided at the upper end of the circular base 204b. In the initial state, the circular base 204b protrudes from the notch 204a, and the fourth spring 204c is at its initial length.
[0032] Specifically, the engaging plate 201b further includes a round bar 206 provided in a circular groove 205b, the round bar 206 is further provided with a baffle 206a provided in the middle of the round bar 206 and slidingly fitted into the elongated groove 205a, and a fifth spring 206b provided between the baffle 206a and the elongated groove 205a, and a third inclined surface 206c is further provided on the lower side of the end of the round bar 206 that is separated from the ring-shaped groove 205, In the initial state, the round bar 206 is completely inside the circular groove 205b.
[0033] As the separation cylinder 203b moves upward, the second inclined surface 204d contacts the outer flange of the ring-shaped groove 205, thereby being pressed into the notch 204a, and when the upper end of the separation cylinder 203b is bonded to the lower end of the engagement plate 201b, the notch 204a becomes coaxial with the circular groove 205b, and under the action of the fourth spring 204c, the circular base 204b protrudes into the circular groove 205b, and the round bar 206 is pushed out of the circular groove 205b, at which point the connection between the separation cylinder 203b and the engagement plate 201b is completed, and the third inclined surface 206c protrudes into the rectangular groove 201d, At this time, the separation can be completed by directly removing the joint 201. In the process of removing the joint 201, the fitting block 202d extends into the rectangular groove 201d under the action of the second spring 202e and slides into the rectangular groove 201d. During sliding, the outer flange of the fitting block 202d comes into contact with the third inclined surface 206c, pushing it into the circular groove 205b. Furthermore, the round bar 206c pushes the circular base 204b out of the circular groove 205b. At this time, under the action of the third spring 203d, the operating cylinder 203c returns to its original position, and the separation cylinder 203b separates from the engaging plate 201b and resets.
[0034] If it is necessary to remove the derailment prevention device and the cart during use, the connection between the derailment prevention device and the cart can be released by pulling the separation cylinder 203b downwards to the lower end of the upper cover 101b. If it is necessary to install the derailment prevention device, the coupling 201 should be precisely aligned with the passage 202b and inserted into its bottom end.
[0035] It should be noted that the above embodiments are for illustrative purposes only and do not limit the technical solutions of the present invention. While the present invention has been described in detail with reference to preferred embodiments, as those skilled in the art will understand, the technical solutions of the present invention can be modified or replaced with equivalent substitutions without departing from its spirit and scope, and such modifications are all included within the scope of the claims of the present invention. [Explanation of symbols]
[0036] Derailment prevention mechanism 100, protective assembly 101, monitoring assembly 102, connection mechanism 200, coupling 201, fixing assembly 202, separation assembly 203, sleeve 101a, upper cover 101b, first spring 101c, holder 101d, rail wheel 101e, connecting sleeve 101f, straight groove opening 101g, connecting holder 102a, proximity switch 102b, straight cylinder 201a, engaging plate 201b, base 202a, passage 202b, fitting groove 202c, fitting block 2 02d, second spring 202e, first inclined surface 202f, rotating drum 203a, separation cylinder 203b, operating cylinder 203c, third spring 203d, vertical groove 201c, first helical groove 203e, second helical groove 203f, first connecting rod 203g, second connecting rod 203h, ring-shaped base 204, notch 204a, square groove 201d, long groove 205a, circular groove 205b, circular base 204b, fourth spring 204c, second inclined surface 204d, round bar 206, baffle 206a, fifth spring 206b, third inclined surface 206c.
Claims
1. A derailment prevention mechanism (100) includes a protective assembly (101) provided at the front end of the running wheels of the moving device, and a monitoring assembly (102) connected to the protective assembly (101), The device comprises a coupling (201) provided at the upper end of the protective assembly (101), a fixed assembly (202) provided at the bottom end of the moving device and detachably connected to the coupling (201), and a connecting mechanism (200) including a separation assembly (203) provided on the coupling (201), The protective assembly (101) includes a sleeve (101a), an upper cover (101b) detachably connected to the upper end of the sleeve (101a), a first spring (101c), a holder (101d) provided at the lower end of the upper cover (101b), a rail wheel (101e), and a connecting sleeve (101f). A device to prevent a cart from derailing during automobile sampler operation, characterized in that the first spring (101c) is fitted to the outside of the holder (101d), one end of the connecting sleeve (101f) is connected to the rail wheel (101e), the outer end of the connecting sleeve (101a) that is spaced apart from the rail wheel (101e) slides against the inner wall of the sleeve (101a), and the holder (101d) slides against the inner wall of the connecting sleeve (101f).
2. A straight groove (101g) is further provided on the side surface of the sleeve (101a). The monitoring assembly (102) includes a connection holder (102a) and a proximity switch (102b), The device for preventing a cart from derailing during cart travel, according to claim 1, is characterized in that one end of the connecting holder (102a) is connected to the upper end of the connecting sleeve (101f) and slides into a straight groove (101g), and the end separated from the connecting sleeve (101f) is connected to the proximity switch (102b).
3. The joint (201) is characterized by including a straight cylinder (201a) provided at the upper end of the upper cover (101b) and an engaging plate (201b) connected to the end of the straight cylinder (201a) that is spaced apart from the upper cover (101b), as described in claim 1 or 2, for preventing a cart from derailing during automobile sampler operation.
4. The fixed assembly (202) includes a base (202a) provided at the lower end of the moving device, a passage (202b) provided in the middle of the base (202a), a fitting groove (202c) provided on the side of the passage (202b), a fitting block (202d) that slides into the fitting groove (202c), and a second spring (202e) provided between the bottom of the fitting groove (202c) and the fitting block (202d). The device for preventing a cart from derailing during automobile sampler operation according to claim 3, characterized in that a first inclined surface (202f) is provided at the lower end of the fitting block (202d).
5. The separation assembly (203) includes a rotating drum (203a) rotatably mounted within the straight cylinder (201a), a separation cylinder (203b), an operating cylinder (203c), and a third spring (203d). The separation cylinder (203b) and the operating cylinder (203c) are both fitted to the outside of the straight cylinder (201a). The operating cylinder (203c) is provided at the lower end of the separation cylinder (203b), The device for preventing a cart from derailing during cart travel, according to claim 4, is characterized in that the third spring (203d) is installed between the upper cover (101b) and the lower end of the operating cylinder (203c).
6. A vertical groove (201c) is provided on the side surface of the straight cylinder (201a). A first helical groove (203e) and a second helical groove (203f) are provided on the side surface of the rotating drum (203a), and the first helical groove (203e) is provided at the upper end of the second helical groove (203f). The device for preventing a cart from derailing during cart travel according to claim 5, characterized in that a first connecting rod (203g) is provided on the inner wall of the separation cylinder (203b), a second connecting rod (203h) is provided on the inner wall of the operating cylinder (203c), both the first connecting rod (203g) and the second connecting rod (203h) are slidably fitted into the vertical groove (201c), the first connecting rod (203g) is slidably fitted into the first helical groove (203e), and the second connecting rod (203h) is slidably fitted into the second helical groove (203f).
7. A ring-shaped base (204) is further provided at the upper end of the separation cylinder (203b), and notches (204a) are distributed around the circumferential direction of the ring-shaped base (204). The cart derailment prevention device for an automobile sampler according to claim 6, characterized in that the engaging plate (201b) is further provided with a ring-shaped groove (205) at its lower end, and angular grooves (201d) are distributed on its side wall, the ring-shaped groove (205) is aligned with the ring-shaped base (204), and elongated grooves (205a) and circular grooves (205b) are distributed in the circumferential direction outside the ring-shaped groove (205), the elongated groove (205a) is provided in the middle of the circular groove (205b), and the circular groove (205b) penetrates the outside of the ring-shaped groove (205) and the engaging plate (201b).
8. The ring-shaped base (204) further includes a circular base (204b) that slides into the notch (204a), and a fourth spring (204c) provided between the bottom of the notch (204a) and the circular base (204b), The device for preventing a cart from derailing during automobile sampler operation according to claim 7, characterized in that a second inclined surface (204d) is provided at the upper end of the circular base (204b).
9. The engagement plate (201b) further includes a round bar (206) provided in the circular groove (205b), The round bar (206) is further provided with a baffle (206a) located in the middle of the round bar (206) and slidingly fitted into the elongated groove (205a), and a fifth spring (206b) located between the baffle (206a) and the elongated groove (205a). The device for preventing a cart from derailing during automobile sampler operation according to claim 8, further characterized in that a third inclined surface (206c) is provided on the lower side of the end of the round bar (206) that is spaced apart from the ring-shaped groove (205).