A fixed limiting piece for vehicle transportation

Abstract

The application discloses a kind of fixed limit pieces for vehicle transportation, including multiple bearing pieces installed on the load-bearing end face of transport vehicle body and the limit piece matched with bundle lock, the bearing piece includes multiple U-shaped plates installed on the load-bearing end face of the vehicle body, gap is provided between adjacent two U-shaped plates, multiple U-shaped plates are connected with horizontal plate on both sides, and multiple first T-shaped through slots are arranged in rows and at equal intervals on the horizontal plate, and a bearing plate is fixed in the U-shaped cavity of multiple U-shaped plates.The engagement of the gap between the limit piece and the two bearing pieces is more convenient and fast to disassemble and assemble, the limit piece does not need to be inserted into the gap from the gap end entrance, and can be directly inserted and clamped vertically at any place of the gap, so that the limit piece is more convenient to use, can reduce labor intensity, shorten installation time, improve work efficiency, and make the installed limit piece firm and stable through magnetic force.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle transportation limiting, in particular to a fixing limiting piece for vehicle transportation. BACKGROUND

[0002] When transporting vehicles by freight train, the vehicles must be properly fixed to ensure their stability during transportation. This is very important because the bumps, vibrations and accelerations / decelerations during transportation can cause damage or displacement to the vehicles, and even cause the vehicles to fall off the train, resulting in serious safety accidents.

[0003] The existing fixing connecting piece for freight train includes a plurality of spaced-apart bearing plates, a limiting piece clamped in the gap between two bearing plates, and a cable lock for connecting the vehicle and the limiting piece (for reference Figure 8 and Figure 9 ), the limiting piece needs to be translated into the gap from the end entrance of the gap (the limiting piece can only be translated into the gap from the end entrance of the gap) and translated to the vehicle, and then the limiting protrusion on the limiting piece is inserted into the clamping opening provided on the edge of the bearing plate, and then the limiting piece is inserted with the insertion rod to make the plate body of the limiting piece clamp the edge of the bearing plate, and the displacement of the limiting piece is limited by the limiting protrusion;

[0004] Since the limiting piece can only be translated into the gap from the end entrance of the gap, when the vehicle fixing point is far from the end entrance of the gap, the operator needs to hold the limiting piece and translate it for a long distance, which is time-consuming and laborious. Therefore, the present application provides a fixing limiting piece for vehicle transportation to meet the needs. SUMMARY

[0005] The purpose of the present application is to provide a fixing limiting piece for vehicle transportation to solve the technical problem that the limiting piece can only be translated into the gap from the end entrance of the gap, which is time-consuming and laborious.

[0006] To achieve the above purpose, the present application provides the following technical solution: a fixing limiting piece for vehicle transportation, comprising a plurality of bearing pieces installed on the bearing end surface of a transportation vehicle body and a limiting piece used in conjunction with a cable lock, the bearing piece comprises a plurality of U-shaped plates installed on the bearing end surface of the vehicle body, a gap is provided between two adjacent U-shaped plates, a horizontal plate is connected to both sides of the plurality of U-shaped plates, a plurality of first T-shaped through grooves are arranged in rows and at equal intervals on the horizontal plate, and a bearing plate is fixed in the U-shaped cavity of the plurality of U-shaped plates.

[0007] The limiting piece comprises a plate body with a width consistent with the gap, a plurality of second T-shaped through grooves are arranged in rows and at equal intervals on both side ends of the plate body, T-shaped blocks are slidably arranged in the inner cavities of the plurality of second T-shaped through grooves, the T-shaped blocks located on the same side are fixed on the same mounting strip, two U-shaped rods are slidably arranged on the plate body, opposite ends of the two U-shaped rods are rotatably connected with the corresponding movable rods, the other ends of the two U-shaped rods are fixedly connected with the corresponding mounting strips, a hollow column is arranged between the two movable rods, a first permanent magnet is fixed in the bottom inner cavity of the hollow column, a blocking ring is arranged above the first permanent magnet, an elastic buffer ring is arranged on the upper end of the blocking ring, a circular plate is arranged on the upper end of the elastic buffer ring, a second permanent magnet with a smaller diameter than the inner diameter of the blocking ring is fixed on the lower end of the circular plate, limiting strips are fixed on both ends of the circular plate and penetrate the hollow column, a rectangular opening adapted to the limiting strips is arranged on the hollow column, the outer ends of the two limiting strips are rotatably connected with the corresponding movable rods, and a pull rod is vertically movably arranged on the hollow column and connected with the circular plate at the lower end thereof.

[0008] The opposite end magnetic poles of the first permanent magnet and the second permanent magnet are opposite.

[0009] A hook ring is arranged on the upper end of the plate body, and a blocking horizontal plate is fixed on the hook ring and located directly above the pull rod.

[0010] The spacing between two adjacent first T-shaped through grooves is equal to the spacing between two connected second T-shaped through grooves.

[0011] As a preferred embodiment in the present embodiment, a labor-saving unit is further included for reducing the resistance when the circular plate is driven upward by the pull rod.

[0012] As a preferred embodiment in the present embodiment, the labor-saving unit comprises a fixed pulley block arranged in the inner cavity of the hollow column, a movable pulley block is arranged below the fixed pulley block, the lower end of the movable pulley block is fixedly connected with the upper end of the circular plate through a connecting plate, a pull rope is wound around the pulleys of the fixed pulley block and the movable pulley block, the upper end of the pull rope is fixedly connected with the lower end of the pull rod, and the lower end of the pull rope is fixedly connected with the lower end of the fixed pulley block.

[0013] As a preferred embodiment in the present embodiment, a guide wheel is further rotatably arranged in the inner cavity of the hollow column, the lower end of the guide wheel is located below the fixed pulley block and above the highest moving point of the movable pulley block.

[0014] As a preferred embodiment in the embodiment, a magnetic shielding unit is further included, which shields the upper end of the first permanent magnet to block the magnetic field when the circular plate moves upward, and the magnetic shielding unit unblocks the upper end of the first permanent magnet to unblock the magnetic field when the circular plate moves downward.

[0015] As a preferred embodiment in the embodiment, the magnetic shielding unit includes a long strip-shaped magnetic shielding shield rotatingly arranged at the bottom of the hollow column inner cavity and a column penetrating through the axial hole of the magnetic shielding shield, the column is provided with an arc-shaped slot, a slide rod is fixed in the inner cavity of the axial hole of the magnetic shielding shield, and the end of the slide rod is slidingly arranged in the inner cavity of the arc-shaped slot, and the lower end of the column is connected with the inner wall of the hollow column through a return spring.

[0016] As a preferred embodiment in the embodiment, the upper end of the plate body is provided with two support plates, the two support plates are oppositely arranged, the two support plates are respectively located between two adjacent T-shaped blocks on the same side, and the outer end of the support plate exceeds the outer end of the plate body by a distance.

[0017] In summary, the technical effects and advantages of the present application are as follows:

[0018] The present application has reasonable structure, the clamping, disassembly and assembly of the gap between the limiting piece and the two bearing pieces are more convenient and fast, the limiting piece does not need to be inserted into the gap from the gap end entrance, but can be directly inserted and clamped vertically at any place of the gap, so that the limiting piece is more convenient to use, the labor intensity is reduced, the installation time is shortened, and the work efficiency is improved, and the limiting piece after installation is firm and stable through the magnetic force;

[0019] In the present application, the labor-saving unit and the magnetic shielding unit are also included, which have good labor-saving effect and facilitate the disassembly of the limiting piece by the operator;

[0020] In the present application, the support plates are arranged, the lower ends of the support plates are in contact with the upper ends of the corresponding horizontal plates, the horizontal plates serve as supporting pieces to support the weight of the limiting piece, the weight of the hand is reduced, and the lower end of the T-shaped block and the bottom of the first T-shaped through slot are located at the same height, so that the subsequent precise insertion of the T-shaped block and the first T-shaped through slot is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a schematic view of the structure of the present application;

[0023] Figure 2 is a schematic view of the structure of the present application; Figure 1 is a schematic view of the structure of the present application;

[0024] Figure 3 is a schematic view of the structure of the present application; Figure 2 is a schematic view of the structure of the present application;

[0025] Figure 4 is a schematic view of the structure of the present application; Figure 3 is a schematic view of the structure of the present application;

[0026] Figure 5 is a schematic view of the structure of the present application; Figure 4 is a schematic view of the structure of the present application;

[0027] Figure 6 is a schematic view of the structure of the present application; Figure 5 is a schematic view of the structure of the present application;

[0028] Figure 7 is a schematic view of the structure of the present application; Figure 6 is a schematic view of the structure of the present application;

[0029] Figure 8 is a schematic view of the structure of the present application;

[0030] Figure 9 is a schematic view of the structure of the present application; Figure 8 is a schematic view of the structure of the present application.

[0031] In the figure: 1, bearing part; 101, U-shaped plate; 102, bearing plate; 103, horizontal plate; 104, first T-shaped through slot; 2, limiting part; 21, plate body; 22, hook ring; 23, blocking horizontal plate; 24, second T-shaped through slot; 25, hollow column; 26, T-shaped block; 27, mounting strip; 28, movable rod; 29, U-shaped rod; 210, pull rod; 211, fixed pulley block; 212, movable pulley block; 213, pull rope; 214, guide wheel; 215, connecting plate; 216, first permanent magnet; 217, round plate; 218, second permanent magnet; 219, blocking ring; 220, limiting strip; 3, gap; 4, support plate; 5, magnetic shielding shield; 6, sliding rod; 7, return spring; 8, arc-shaped slot; 9, vertical column; 10, through opening. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Embodiment: Reference Figures 1-5 The utility model provides a kind of fixed limiting member for vehicle transportation, including the multiple load-bearing members 1 installed on the load-bearing end surface of transport vehicle body and the limiting member 2 matched with the cable lock, load-bearing member 1 includes the multiple U-shaped plates 101 installed on the load-bearing end surface of vehicle body, gap 3 is provided between two adjacent U-shaped plates 101, and the lateral plate 103 is connected on the both sides of multiple U-shaped plates 101, and multiple first T-shaped through slots 104 are arranged in rows and at equal intervals on the lateral plate 103, and load-bearing plate 102 is fixed in the U-shaped cavity of multiple U-shaped plates 101;

[0034] Limiting member 2 includes the plate body 21 with the same width as gap 3, multiple second T-shaped through slots 24 are arranged in rows and at equal intervals on the both sides of plate body 21, the inner cavity of multiple second T-shaped through slots 24 is slidably provided with T-shaped block 26, multiple T-shaped blocks 26 located on the same side are fixed on the same mounting strip 27, and two U-shaped rods 29 are slidably arranged on plate body 21, and the opposite ends of two U-shaped rods 29 are rotatably connected with corresponding movable rods 28, and the other ends of two U-shaped rods 29 are fixedly connected with corresponding mounting strips 27, hollow column 25 is arranged between two movable rods 28, first permanent magnet 216 is fixed in the bottom inner cavity of hollow column 25, blocking ring 219 is arranged above first permanent magnet 216, and elastic buffer ring is arranged on the upper end of blocking ring 219, circular plate 217 is arranged on the upper end of elastic buffer ring, second permanent magnet 218 with smaller diameter than the inner diameter of blocking ring 219 is fixed on the lower end of circular plate 217, limiting strip 220 is fixed on the both ends of circular plate 217 and penetrates through hollow column 25, rectangular opening adapted to limiting strip 220 is arranged on hollow column 25, the outer ends of two limiting strips 220 are rotatably connected with corresponding movable rods 28, and pull rod 210 is vertically movably arranged on hollow column 25, and the lower end of pull rod 210 is connected with circular plate 37.

[0035] The opposite poles of first permanent magnet 216 and second permanent magnet 218 are opposite.

[0036] The upper end of plate body 21 is provided with hook ring 22, and blocking transverse plate 23 is fixed on hook ring 22, and blocking transverse plate 23 is located directly above pull rod 210.

[0037] The distance between two adjacent first T-shaped through slots 104 is equal to the distance between two connected second T-shaped through slots 24.

[0038] In use, the operator can hold the hook ring 22 by hand, and make the four fingers adhere to the adhesion plate arranged at the upper end of the pull rod 210, and force the four fingers to the palm. The pull rod 210 drives the circular plate 217 to move upward, and drives the multiple T-shaped blocks 26 on both sides to move relatively through the cooperation of the movable rod 28, the mounting strip 27 and the U-shaped rod 29. During the whole process, the magnetic force between the first permanent magnet 216 and the second permanent magnet 218 is overcome to move the end of the multiple T-shaped blocks 26 on the same side into the first T-shaped slot 104. At this time, the operator can directly move the limiting piece to the vehicle fixing point by hand, vertically downwardly move the limiting piece 2, make the plate body 21 in the gap, and make the T-shaped blocks 26 on it correspond to the corresponding first T-shaped slot 104 respectively. After the correspondence is completed, the adhesion plate is removed. Through the magnetic force and the gravity of the circular plate 217, the pull rod 210 and other components, the circular plate 217 will move downwardly, and the T-shaped blocks 26 on both sides will move back to the second T-shaped slot 24. The plate body 21 is limited by the T-shaped blocks 26. The T-shaped blocks 26 can prevent the plate body 21 from moving up and down and front and back. Since the width of the plate body 21 is consistent with the gap, the limiting piece 2 can avoid moving left and right, thereby ensuring the stable limiting of the whole limiting piece 2. Compared with the original plug-in rod and limiting piece 2 plug-in fixed, the clamping and disassembly of the limiting piece 2 and the gap are more convenient and fast. The limiting piece 2 does not need to be inserted into the gap from the gap end entrance, but can be directly vertically inserted and clamped at any place in the gap, so that the limiting piece 2 is more convenient to use, can reduce the labor intensity, shorten the installation time and improve the work efficiency.

[0039] It should be noted that, first, the first T-shaped slot 104 and the second T-shaped slot 24 are arranged as a through slot structure, that is, a through hole 10 is arranged thereon, which is to prevent dust or other impurities from accumulating at the bottom of the slot. When the T-shaped block 26 moves, the dust or other impurities at the bottom of the slot can be pushed out of the slot cavity, so that the distance between the first permanent magnet 216 and the second permanent magnet 218 is not increased due to the accumulation of dust or other impurities at the bottom of the slot, thereby reducing the magnetic force between them. The relative movement of the T-shaped blocks 26 on the same side is easily caused by the vibration of the freight train, which affects the fixed limiting effect of the limiting piece 2, or the T-shaped blocks cannot be completely retracted into the second T-shaped slot 24 due to the accumulation of dust or other impurities at the bottom of the slot, causing the plate body 21 to be unable to be directly inserted into the gap 3. At the same time, the arrangement of the first T-shaped slot 104 can enhance the structural strength of the horizontal plate 103 (compared with the existing arrangement of the clamping opening directly on the horizontal plate 103). Second, the blocking horizontal plate 23 is arranged to separate the pull ring on the bundler from the pull rod 210 to avoid interference. Fourth, the arrangement of the elastic buffer ring can buffer the collision between the circular plate 217 and the blocking ring 219.

[0040] As a preferred embodiment in the present embodiment, as shown in Figure 5 The labor-saving unit is further arranged in the inner cavity of the hollow column 25, and is used for reducing the resistance when the circular plate 217 is pulled upward by the pull rod 210.

[0041] As a preferred embodiment in the present embodiment, as shown in Figure 5 The labor-saving unit comprises a fixed pulley block 211 arranged in the inner cavity of the hollow column 25, a movable pulley block 212 arranged below the fixed pulley block 211, and a connecting plate 215 arranged between the lower end of the movable pulley block 212 and the upper end of the circular plate 217. A pull rope 213 is wound around the pulleys of the fixed pulley block 211 and the movable pulley block 212, and the upper end of the pull rope 213 is fixedly connected with the lower end of the pull rod 210, and the lower end of the pull rope 213 is fixedly connected with the lower end of the fixed pulley block 211.

[0042] The movable pulley block 212, the fixed pulley block 211 and the pull rope 213 constitute a labor-saving mechanism. In use, the pull rod 210 is pulled to pull the movable pulley block 212 upward, and the circular plate 217 is pulled upward at the same time, so that the resistance when the limiting part 2 is disassembled is reduced, and the operator can overcome the magnetic force by exerting a smaller force.

[0043] As a preferred embodiment in the present embodiment, as shown in Figure 5 The labor-saving unit further comprises a guide wheel 214 rotatably arranged in the inner cavity of the hollow column 25, and the lower end of the guide wheel 214 is located below the fixed pulley block 211 and above the highest moving point of the movable pulley block 212.

[0044] The guide wheel 214 is arranged between the fixed pulley block 211 and the movable pulley block 212, and the purpose is to shorten the height of the pull rod 210 when the lower end of the T-shaped block 26 is completely retracted into the second T-shaped slot 24, so as to reduce the design height of the shackle 22. The higher the design height of the shackle 22, the lower the design structural strength, and the more likely to be bent and deformed.

[0045] It should be noted that the highest moving point of the movable pulley block 212 is located below the fixed pulley block 211, and is the height when the lower end of the T-shaped block 26 is completely retracted into the second T-shaped slot 24. This is beneficial to the maximization of the height of the hollow column 25, and further reduces the design height of the shackle 22.

[0046] As a preferred embodiment in the present embodiment, as shown in Figure 5As shown, the magnetic shielding unit includes a long strip-shaped magnetic shielding shield 5 rotatingly arranged at the bottom of the inner cavity of the hollow column 25 and a stand 9 penetrating the axial hole of the magnetic shielding shield 5, the stand 9 is provided with an arc-shaped slot 8, a slide rod 6 is fixed in the inner cavity of the axial hole of the magnetic shielding shield 5, the end of the slide rod 6 is slidingly arranged in the inner cavity of the arc-shaped slot 8, and the lower end of the stand 9 is connected with the inner wall of the hollow column 25 through a reset spring 7.

[0047] It should be noted that: when the power-saving unit and the magnetic shielding unit exist simultaneously, the power-saving effect is better, and when the power-saving unit exists simultaneously, each component of the power-saving unit is made of non-metallic material to avoid the magnetic force influence.

[0048] As a preferred embodiment in the present embodiment, as shown in Figure 5 and Figure 6 As shown, the magnetic shielding unit includes a long strip-shaped magnetic shielding shield 5 rotatingly arranged at the bottom of the inner cavity of the hollow column 25 and a stand 9 penetrating the axial hole of the magnetic shielding shield 5, the stand 9 is provided with an arc-shaped slot 8, a slide rod 6 is fixed in the inner cavity of the axial hole of the magnetic shielding shield 5, the end of the slide rod 6 is slidingly arranged in the inner cavity of the arc-shaped slot 8, and the lower end of the stand 9 is connected with the inner wall of the hollow column 25 through a reset spring 7.

[0049] When the circular plate 217 moves downward, the lower end of the circular plate 217 will contact and press the stand 9, the stand 9 moves downward to press the reset spring 7, along with the downward movement of the stand 9, the slide rod 6 will move along the path of the arc-shaped slot 8, and then the magnetic shielding shield 5 will rotate to slowly remove the shielding of the upper end of the first permanent magnet 216, and finally completely remove the shielding, when the circular plate 217 moves upward, the magnetic shielding shield 5 reversely rotates and finally returns to the original position under the elastic force of the reset spring 7, and forms shielding for the first permanent magnet 216, reduces the magnetic force between the two permanent magnets, and then the operator can use smaller force to keep the lower end of the T-shaped block 26 stable in the inner cavity of the second T-shaped slot 24 without moving.

[0050] It should be noted that, first, the elastic force of the reset spring 7 on the circular plate 217 is small relative to the magnetic force, which does not have a great impact on the stability of the limiting piece 2; second, the column 9 can only move upward or downward in the inner cavity of the hollow column 25; third, the first permanent magnet 216 and the second permanent magnet 218 are arranged in the inner cavity of the magnetic shielding ring, and the magnetic shielding plate 5 is made of a non-metal magnetic shielding material, which can be a ceramic material, to avoid the influence of the generated magnetic field on the rotating motion of the magnetic shielding plate 5; fourth, the upper end of the magnetic shielding plate 5 is provided with a through hole at a position corresponding to the first permanent magnet 216, and the magnetic field of the first permanent magnet 216 can overflow from the through hole. When the force applied to the abutting plate is loosened, in order to ensure that the circular plate 217 has sufficient force to automatically move downward, a through hole (as shown in Figure 7 ) is arranged, which can generate a downward magnetic force on the circular plate 217, thereby facilitating the movement of the circular plate 217 and the T-shaped block 26 to overcome the frictional resistance.

[0051] As a preferred embodiment in the present embodiment, as shown in Figure 3 , two support plates 4 are arranged at the upper end of the plate body 21, and the two support plates 4 are oppositely arranged, and the two support plates 4 are respectively located between the adjacent two T-shaped blocks 26 on the same side. The outer end of the support plate 4 exceeds the outer end of the plate body 21 by a distance.

[0052] When installing the limiting piece 2, the lower ends of the two support plates 4 are respectively in contact with the upper ends of the corresponding horizontal plates 103. The horizontal plate 103 serves as a support to support the weight of the limiting piece 2, thereby reducing the weight of the hand and ensuring that the lower end of the T-shaped block 26 is at the same height as the bottom of the inner cavity of the first T-shaped slot 103, thereby facilitating the precise insertion of the T-shaped block 26 and the first T-shaped slot 103. When the T-shaped block 26 is aligned with the upper end opening of the first T-shaped slot 103, the fingers on the abutting plate are loosened, and the insertion of the T-shaped block 26 and the first T-shaped slot 103 is completed.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements of some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A fixing and limiting part for vehicle transportation, comprising a plurality of bearing parts (1) installed on the bearing end surface of a transportation vehicle body and a limiting part (2) matched with a cable lock, characterized in that: The bearing (1) comprises a plurality of U-shaped plates (101) mounted on the vehicle body bearing end face, gaps (3) are arranged between two adjacent U-shaped plates (101), and a plurality of first T-shaped through grooves (104) are arranged on the lateral plate (103) in rows and at equal intervals. The limiting piece (2) comprises a plate body (21) with a width consistent with the gap (3), a plurality of second T-shaped through grooves (24) are arranged on the two lateral ends of the plate body (21) in rows and at equal intervals, T-shaped blocks (26) are slidably arranged in the inner cavities of the plurality of second T-shaped through grooves (24), a plurality of T-shaped blocks (26) located on the same side are fixed on the same mounting strip (27), the plate body (21) is slidably arranged with two U-shaped rods (29), and the opposite ends of the two U-shaped rods (29) are rotatably connected with the corresponding movable rods (28), the other ends of the two U-shaped rods (29) are fixedly connected with the corresponding mounting strips (27), a hollow column (25) is arranged between the two movable rods (28), a first permanent magnet (216) is fixed in the bottom inner cavity of the hollow column (25), a blocking ring (219) is arranged above the first permanent magnet (216), an elastic buffer ring is arranged on the upper end of the blocking ring (219), a circular plate (217) is arranged on the upper end of the elastic buffer ring, a second permanent magnet (218) with a diameter smaller than the inner diameter of the blocking ring (219) is fixed on the lower end of the circular plate (217), limiting strips (220) penetrating through the hollow column (25) are fixed on the two ends of the circular plate (217), a rectangular opening adapted to the limiting strips (220) is arranged on the hollow column (25), the outer ends of the two limiting strips (220) are rotatably connected with the corresponding movable rods (28), and a pull rod (210) is vertically movably arranged on the hollow column (25), and the lower end of the pull rod (210) is connected with the circular plate (217). The opposite end magnetic poles of the first permanent magnet (216) and the second permanent magnet (218) are opposite. A hook ring (22) is arranged on the upper end of the plate body (21), and a blocking lateral plate (23) is fixed on the hook ring (22), and the blocking lateral plate (23) is located directly above the pull rod (210). The spacing between two adjacent first T-shaped through grooves (104) is equal to the spacing between two connected second T-shaped through grooves (24). The labor-saving unit is further arranged to reduce the resistance when the circular plate (217) is driven upward by the pull rod (210). The labor-saving unit comprises a fixed pulley block (211) arranged in the inner cavity of the hollow column (25).

2. The fixing and limiting member for vehicle transportation according to claim 1, characterized in that: The fixed pulley set (211) is provided below with a movable pulley set (212), the lower end of the movable pulley set (212) is fixedly connected with the upper end of the circular plate (217) through a connecting plate (215), the pulleys of the fixed pulley set (211) and the movable pulley set (212) are wound with a pull rope (213), the upper end of the pull rope (213) is fixedly connected with the lower end of the pull rod (210), and the lower end of the pull rope (213) is fixedly connected with the lower end of the fixed pulley set (211).

3. The fixing and limiting member for vehicle transportation according to claim 2, characterized in that: A guide wheel (214) rotatingly arranged in the inner cavity of the hollow column (25) is further included, the lower end of the guide wheel (214) is located below the fixed pulley set (211) and above the highest moving point of the movable pulley set (212).

4. The fixing and limiting member for vehicle transportation according to any one of claims 1 to 3, characterized in that: A magnetic shielding unit is further included, when the circular plate (217) moves upward, the magnetic shielding unit will gradually shield the upper end of the first permanent magnet (216) to block the magnetic field, when the circular plate (217) moves downward, the magnetic shielding unit will gradually remove the shielding of the upper end of the first permanent magnet (216) to remove the magnetic field blocking.

5. The securing and limiting member for vehicle transport of claim 4, wherein: The magnetic shielding unit includes a magnetic shielding shield (5) rotatingly arranged at the bottom of the inner cavity of the hollow column (25) and in a strip shape, and a stand column (9) penetrating through the axial hole of the magnetic shielding shield (5), the stand column (9) is provided with an arc-shaped groove (8), a sliding rod (6) is fixedly arranged in the inner cavity of the axial hole of the magnetic shielding shield (5), and the end portion of the sliding rod (6) is slidingly arranged in the inner cavity of the arc-shaped groove (8), and the lower end of the stand column (9) is connected with the inner wall of the hollow column (25) through a return spring (7).

6. The securing and limiting member for vehicle transport of claim 1, wherein: The upper end of the plate body (21) is provided with two support plates (4), and the two support plates (4) are oppositely arranged, the two support plates (4) are respectively located between the same side adjacent two T-shaped blocks (26), and the outer end of the support plate (4) exceeds the outer end of the plate body (21) by a distance.

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