Port transport vehicle connecting device convenient for replacing parts

Abstract

The utility model relates to the technical field of traction connection, and discloses a port transport vehicle connecting device convenient for replacing parts, which is characterized in that a group of symmetrical connecting plates are arranged at the upper end and the lower end of one side of a transport vehicle fixing plate, a through groove is arranged on the side surface of the fixing plate, a through chute is arranged at the top of the connecting plate, a spring fixing rod is arranged on the side surface of the lower connecting plate, and a fixing rod is arranged at the bottom; a guide structure is arranged at the top of a lower connecting plate; a hook is arranged on the balance pin in a sliding manner; the other end of the hook is connected with a connecting structure; the connecting structure is connected with a connecting rod; due to the adoption of the design of the sliding groove, the sliding connection and the like, when parts such as the hook need to be replaced, the balance pin only needs to be taken out along the sliding groove in a sliding mode, the hook can be easily taken down, the equipment maintenance time is shortened, and the shutdown time of a port transport vehicle is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of traction connection technology, concretely to a port transport vehicle connecting device convenient for replacing spare parts. BACKGROUND

[0002] The port transport vehicle connecting device is a key component to ensure the smooth operation of port transportation, which is mainly used to realize the stable connection between the port transport vehicle and various loading and unloading equipment and other transport tools, so as to ensure the efficient transfer of goods between different transportation links. In the busy operation scene of the port, the cargo throughput is huge, and the transport vehicles need to be connected and separated frequently. For example, the process of unloading containers from cargo ships to wharf yards and then transferring them to freight trains or container trucks by port transport vehicles cannot be separated from the reliable work of the connecting device. Not only should the stability of the connection be ensured to prevent the goods from falling during transportation, but also different types of transport equipment and operating environments should be adapted to improve the overall logistics efficiency of the port. Therefore, reliable and excellent performance connecting devices are crucial to maintaining the efficient operation of the port and ensuring the safe transportation of goods.

[0003] The traditional port transport vehicle connecting device has exposed many problems in the long-term use process. From the perspective of structural design, its structure is often complex, and the connection between the spare parts is complicated. Some traditional connecting devices use a large number of bolts and nuts for fastening. In actual replacement of spare parts, a large amount of time is needed to tighten the numerous bolts, which is very inconvenient to operate. This greatly prolongs the maintenance time of the equipment. Moreover, the complex structure requires high assembly precision between the various spare parts. Once a spare part is worn or damaged, it is difficult to accurately reset when assembling a new part, which leads to a decline in the overall performance of the connecting device. Therefore, we propose a port transport vehicle connecting device convenient for replacing spare parts. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the utility model provides a port transport vehicle connecting device convenient for replacing spare parts, which solves the above problems.

[0006] (II) Technical solutions

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: A port transport vehicle connecting device convenient to replace spare parts, transport vehicle fixed plate is fixedly installed with a group of symmetrical connecting plates on the upper and lower ends of one side, the side of transport vehicle fixed plate is provided with a through slot, the top of connecting plate is provided with a through slide groove, the side of connecting plate of lower one end is fixedly installed with spring fixed link, the bottom of transport vehicle fixed plate is fixedly installed with fixed link, the both sides of fixed link are provided with pull-out structure, the upper surface of pull-out structure is fixedly installed with fixed table, the top of fixed table is fixedly installed with connecting seat, the top of connecting seat is rotatably installed with balance pin, balance pin is slidably installed in slide groove, the top of connecting plate of lower one end is provided with guide structure, the sliding installation of balance pin has hook on the other end, the other end of hook is rotatably installed with connecting structure, the other end of connecting structure is fixedly installed with connecting rod, the both sides of connecting rod are fixedly installed with hanging rod, the outside of hanging rod is slidably connected with hanging fixed plate.

[0008] Preferably, the pull-out structure includes a high-pressure spring, a spring connecting plate, and a foot pedal, a group of parallel spring connecting plates are rotatably connected to the both sides of the fixed rod, a high-pressure spring is fixedly connected to the inner side of the other end of the spring connecting plate, the top of the high-pressure spring is fixedly connected to the spring fixed link, a group of foot pedals are fixedly installed on the outer side of the spring connecting plate.

[0009] Preferably, the guide structure includes a guide block, a mounting seat, an extension rod, and a connecting block, the guide block is fixedly installed on the top of the connecting plate of the lower end, a through groove is formed in the center of the guide block, one end of the guide block is inclined, a group of symmetrical mounting seats are fixedly installed on the side of the guide block, the side of the mounting seat is fixedly connected to the transport vehicle fixed plate, an extension rod is rotatably connected to the mounting seat, a connecting block is fixedly connected to the top of the extension rod, the connecting block passes through the balance pin.

[0010] Preferably, one end of the hook is semicircular, a circular groove is formed in the semicircular hook, a groove is formed in the other end of the hook, through holes are formed in the both sides of the groove of the balance pin.

[0011] Preferably, the connecting structure includes a connecting frame and a connecting rod, the connecting frame is rotatably installed in the groove of the balance pin, the connecting frame is trapezoidal, a connecting rod is fixedly installed at the other end of the connecting frame, the connecting rod is fixedly connected to the connecting frame through a group of symmetrical and parallel rods, a hanging rod is fixedly connected to the both sides of the other end of the connecting rod.

[0012] Preferably, the hanging fixing plate is L-shaped, a hanging rod sliding groove is formed in the side surface of the hanging fixing plate, a hanging rod is slidably connected in the hanging rod sliding groove, and a central fixing plate is fixedly connected outside the hanging fixing plate.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the port transport vehicle connecting device provided by the utility model has the following beneficial effects:

[0015] 1. The port transport vehicle connecting device convenient for replacing parts adopts designs such as sliding grooves and sliding connections, when it is necessary to replace parts such as hooks, the balance pin only needs to be slid along the sliding groove and taken out, so that the hook can be easily taken down, which greatly shortens the equipment maintenance time, reduces the downtime of the port transport vehicle, enables the vehicle to be put into use more quickly, and significantly improves the transfer efficiency of port goods.

[0016] 2. The port transport vehicle connecting device convenient for replacing parts is optimized in design, the connection modes between various parts are simple and clear, for example, the connection between the connecting frame and the hook, the connecting frame is rotatably installed in the groove formed in the hook, this design not only facilitates installation, but also enables the installation position to be easily aligned when the connecting frame is replaced, ensures assembly accuracy, thereby maintaining the stability of the connecting device and ensuring the safety of goods transportation.

[0017] 3. The port transport vehicle connecting device convenient for replacing parts fully considers the convenience of maintenance in design, for example, the footboard design in the tensile structure, the maintenance personnel can easily adjust the position of the spring connecting plate by treading the footboard, which is convenient for checking and replacing parts such as springs, meanwhile, various parts are reasonably arranged, the damaged parts can be replaced without the need to remove a large number of other parts, which greatly simplifies the maintenance process and reduces the labor intensity of the maintenance personnel. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a sliding groove schematic view of the utility model;

[0020] Figure 3 It is a guide block schematic view of the utility model;

[0021] Figure 4 It is a hanging rod sliding groove schematic view of the utility model.

[0022] In the figure: transport vehicle fixing plate; 2, connecting plate; 3, sliding groove; 4, spring fixing rod; 5, high-pressure spring; 6, fixing rod; 7, spring connecting plate; 8, foot pedal; 9, fixing table; 10, connecting seat; 11, balance pin; 12, guide block; 13, mounting seat; 14, telescopic rod; 15, connecting block; 16, hook; 17, connecting frame; 18, connecting rod; 19, hanging rod; 20, hanging fixed plate; 21, hanging rod sliding groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4 A port transport vehicle connecting device convenient for replacing parts, which comprises a transport vehicle fixing plate 1, a group of symmetrical connecting plates 2 are fixedly installed on the upper and lower ends of one side of the transport vehicle fixing plate 1, a through groove is formed in the side of the transport vehicle fixing plate 1, a sliding groove 3 is formed in the top of the connecting plate 2, a spring fixing rod 4 is fixedly installed on the side of the connecting plate 2 at the lower end, a fixing rod 6 is fixedly installed on the bottom of the transport vehicle fixing plate 1, pull-out structures are arranged on the two side faces of the fixing rod 6, a fixing table 9 is fixedly installed on the upper surface of the pull-out structure, a connecting seat 10 is fixedly installed on the top of the fixing table 9, a balance pin 11 is rotatably installed on the top of the connecting seat 10, the balance pin 11 is slidably installed in the sliding groove 3, a guide structure is arranged on the top of the connecting plate 2 at the lower end, a hook 16 is slidably installed on the balance pin 11, a connecting structure is rotatably installed on the other end of the hook 16, a connecting rod 18 is fixedly installed on the other end of the connecting structure, hanging rods 19 are fixedly installed on the two sides of the connecting rod 18, and hanging fixed plates 20 are slidably connected to the outer side of the hanging rods 19.

[0025] Further, the pulling-out structure comprises high-pressure springs 5, spring connecting plates 7, foot pedals 8, a group of parallel spring connecting plates 7 are rotationally connected to the two sides of the fixed rod 6, the other end of the spring connecting plate 7 is fixedly connected with the inner side of the opposite side of the high-pressure spring 5, the top of the high-pressure spring 5 is fixedly connected with the spring fixing rod 4, a group of foot pedals 8 are fixedly installed on the outer side of the spring connecting plate 7, during daily maintenance, if the entire pulling-out structure needs to be comprehensively checked, the rotation of the spring connecting plate 7 in the transportation process can be simulated by repeatedly stepping on the foot pedal 8, whether the high-pressure spring 5 is abnormally deformed or whether the connecting parts of the spring connecting plate 7 and the fixed rod 6 and the spring fixing rod 4 are loose can be observed, in addition, the parallel design of the spring connecting plate 7 ensures that the high-pressure spring 5 can uniformly play a buffering role when being stressed, avoiding the premature damage of the spring due to uneven stress, the surface of the foot pedal 8 is usually designed with anti-skid lines, which is to prevent the staff from slipping when stepping, ensuring the safety and reliability of the operation.

[0026] Further, the guiding structure comprises guiding blocks 12, mounting seats 13, telescopic rods 14, connecting blocks 15, the guiding block 12 is fixedly installed on the top of the connecting plate 2 at the lower end, a through groove is formed in the center of the guiding block 12, one end of the guiding block 12 is inclined, a group of symmetrical mounting seats 13 are fixedly installed on the side of the guiding block 12, the side of the mounting seat 13 is fixedly connected with the transport vehicle fixed plate 1, the telescopic rod 14 is rotationally connected to the mounting seat 13, the connecting block 15 is fixedly connected to the top of the telescopic rod 14, the connecting block 15 passes through the balance pin 11, the design of the inclined end of the guiding block 12 not only facilitates the entry of the balance pin 11, but also plays a certain guiding and correcting role when the balance pin 11 is blocked, when the connecting device is subjected to a lateral force during use, the telescopic rod 14 can rotate on the mounting seat 13, adjusts the position of the connecting block 15 through its own telescopic adjustment, and then fine-tunes the angle of the balance pin 11, so that the hook 16 can better adapt to different connection working conditions, ensuring the accuracy of the connection, the mounting seat 13 is symmetrically installed on the side of the guiding block 12, and the symmetrical structure ensures that the guiding structure is uniformly stressed during work, thereby enhancing the stability of the whole.

[0027] Further, one end of the hook 16 is semicircular, the semicircular hook 16 is provided with an arc slot, the other end of the hook 16 is provided with a slot, the two sides of the slot of the balance pin 11 are provided with through holes, the arc slot on the semicircular hook 16 can better fit the profile of the object to be hooked when hooking the equipment, increase the contact area, disperse the stress, reduce the wear between the hook 16 and the hooked object, prolong the service life of the hook 16, and the part of the hook 16 rotatingly connected with the connecting frame 17 in the slot of the other end is usually provided with a wear-resistant bushing to reduce the friction coefficient during rotation, make the hook 16 rotate more flexibly, and reduce wear. The through holes on both sides of the slot of the balance pin 11 can not only facilitate the installation of auxiliary devices, but also ensure the accuracy of the installation position of the balance pin 11 in the sliding slot 3 when the balance pin 11 is installed by inserting a positioning pin or other tools, thereby improving the installation efficiency.

[0028] Further, the connecting structure includes a connecting frame 17 and a connecting rod 18, the connecting frame 17 is rotatably installed in the slot of the balance pin 11, the connecting frame 17 is trapezoidal, the other end of the connecting frame 17 is fixedly installed with the connecting rod 18, the connecting rod 18 is fixedly connected with the connecting frame 17 through a group of symmetric and parallel rods, and the other end of the connecting rod 18 is fixedly connected with a hooking rod 19 on both sides. The trapezoidal structure of the connecting frame 17 can better disperse stress when it is stressed, and has higher structural strength and stability compared to other shapes. The rotating connection part of the connecting frame 17 in the slot of the balance pin 11 is provided with a lubricating oil filling hole, and regular filling of lubricating oil can effectively reduce friction and wear, ensure smooth rotation of the connecting frame 17, and the connecting rod 18 is fixedly connected with the connecting frame 17 through symmetric and parallel rods. This connection mode ensures that each part of the connecting rod 18 is evenly stressed when transmitting tension, avoids local stress concentration, improves the reliability of the connecting structure, and at the same time, the symmetric design also helps to maintain the balance of the entire connecting device during work, reducing the shaking caused by uneven stress.

[0029] Further, the hooking fixed plate 20 is L-shaped, the side surface of the hooking fixed plate 20 is provided with a hooking rod sliding slot 21, and the hooking rod sliding slot 21 is slidably connected with the hooking rod 19. The central fixed connecting plate on the outer side of the hooking fixed plate 20, the L-shaped design of the hooking fixed plate 20 can provide multiple connection points when connected with external equipment, enhancing the stability of the connection. The inner wall of the hooking rod sliding slot 21 is usually smooth to reduce the friction of the hooking rod 19 when sliding, ensuring that the hooking rod 19 can smoothly adjust the position in the sliding slot. The central fixed connecting plate on the outer side of the hooking fixed plate 20 can be fixed by selecting different specifications of bolts or connecting pieces according to actual needs when connected with external equipment, improving the versatility of the connecting device. In addition, the material of the hooking fixed plate 20 is generally high-strength and corrosion-resistant alloy material to adapt to the harsh working environment of the port and ensure that the connection performance will not be affected by corrosion during long-term use.

[0030] Structure description:

[0031] Transport vehicle fixing plate 1: The transport vehicle fixing plate 1 is a basic connecting component connecting the connecting device with the port transport vehicle, which is fixed on the transport vehicle by welding or bolts, and provides installation support for other components. The installation positions on the upper and lower ends of the side surface are crucial for the stable work of the connecting device;

[0032] Connecting plate 2: The connecting plate 2 is symmetrically installed on the upper and lower ends of the side surface of the transport vehicle fixing plate 1, the top sliding groove is used for the sliding of the balance pin, and the side spring fixing rod connects the stretching structure, which is the structural basis of the movement and buffering of the connecting device, and is also the key connection point for the cooperative work of various components;

[0033] Sliding groove 3: The sliding groove 3 is opened on the top of the connecting plate 2 and penetrates through, and cooperates with the balance pin, so that the hook can slide within a certain range, facilitating the butt joint of the hook and the equipment to be connected, and providing convenience for position adjustment during connection;

[0034] Spring fixing rod 4: The spring fixing rod 4 is fixed on the side surface of the connecting plate 2, and is used for connecting the high-pressure spring, playing a key fixing role in the stretching structure, and guaranteeing the stable play of the high-pressure spring in buffering and adjusting tension;

[0035] High-pressure spring 5: The high-pressure spring 5 is connected between the spring connecting plate 7 and the spring fixing rod 4, which uses elasticity to buffer vibration during transportation, and can also stretch to provide pre-tightening force for the connecting device, reducing the risk of loose connection;

[0036] Fixed rod 6: The fixed rod 6 is installed at the bottom of the transport vehicle fixing plate 1, and the two sides are connected with the spring connecting plate, providing an installation basis for the stretching structure, stable support and connection of the stretching structure;

[0037] Spring connecting plate 7: The spring connecting plate 7 is rotatably connected on both sides of the fixed rod 6, one end is connected with the high-pressure spring, and the other end is installed with a foot pedal, which transmits the spring force, realizes the spring stretching adjustment and vibration buffering;

[0038] Foot pedal 8: The foot pedal 8 is fixed on the outer side of the spring connecting plate 7, and the staff can drive the spring connecting plate 7 to rotate by stepping on it, which is used to adjust the stretching degree of the high-pressure spring, realize the pre-tightening force adjustment and partial maintenance operation;

[0039] Fixed table 9: The fixed table 9 is trapezoidal, installed on the top of the spring connecting plate 7 and connected with the bottom of the balance pin, which increases the connection stability, guides the sliding of the balance pin, and disperses the impact force;

[0040] Connecting seat 10: The connecting seat 10 is fixed on the top center of the fixed table 9, and the balance pin is rotatably installed on the top, which provides an installation position for the balance pin, guarantees its flexible rotation and stable connection;

[0041] Balance pin 11: balance pin 11 through the transport car fixed plate 1 upper and lower ends of the connecting plate 2, sliding in the sliding groove and install hooks, so that the hook can slide and stable connection, in the connection and parts replacement plays a key role;

[0042] Guide block 12: guide block 12 is fixed at the top of the connecting plate 2, the central through slot and one end of the tilt, for the balance pin 11 sliding guide, its inclined end is convenient for the balance pin 11 into;

[0043] Mounting seat 13: mounting seat 13 is fixed symmetrically on the side of the guide block 12 and connected with the transport car fixed plate 1, providing mounting position for telescopic rod, ensuring the stability of the guide structure, making the stress uniform;

[0044] Telescopic rod 14: telescopic rod 14 is rotatably installed in the mounting seat 13, and the top is connected with the connecting block 15. When the connecting device is subjected to lateral force, the angle of the balance pin 11 is adjusted by rotating and telescoping;

[0045] Connecting block 15: the middle part of the connecting block 15 passes through the balance pin 11 and is connected with the top of the telescopic rod 14, which assists the sliding of the balance pin 11 and adjusts the angle of the balance pin 11 in cooperation with the telescopic rod 14;

[0046] Hook 16: one end of the hook 16 is semicircular for hanging equipment, and the other end is slotted for connecting frame. The circular arc groove in the semicircular part can increase the contact area and disperse the stress, affecting the convenience and safety of connection;

[0047] Connecting frame 17: connecting frame 17 is rotatably installed in the slot of hook 16, which is trapezoidal in shape and is fixedly connected with connecting rod 18 at the other end, which can disperse stress, adjust angle, enhance connection stability and versatility;

[0048] Connecting rod 18: connecting rod 18 is connected with connecting frame 17 through symmetric parallel rods, and hanging rod 19 is fixed on both sides to transfer tension and ensure that hanging rod 19 and hanging fixed plate 20 are uniformly stressed;

[0049] Hanging rod 19: hanging rod 19 is fixed on both sides of connecting rod 18 and cooperates with the sliding slot of hanging fixed plate 20. When connected, it can be slid to adjust the position, and after connection, it is fixed to prevent the connecting device from falling off;

[0050] Hanging fixed plate 20: hanging fixed plate 20 is L-shaped, with hanging rod sliding slot 21 on the side and fixed connecting plate in the center, which cooperates with hanging rod 19 to realize stable connection and adapt to various connection requirements;

[0051] Hanging rod sliding slot 21: hanging rod sliding slot 21 is provided on the side of hanging fixed plate 20 and cooperates with hanging rod 19 to facilitate the sliding adjustment of hanging rod 19, ensure accurate butt joint and realize stable connection;

[0052] Working principle: when connecting operation, the hook 16 plays a key role, the semicircular end is used for hanging the equipment, the worker pushes the hook 16, the balance pin 11 slides in the sliding groove 3, drives the hook 16 to complete the preliminary hanging of the equipment to be connected, the other end of the hook 16 is slotted, the connecting frame 17 is rotatably installed in the slot, so that the hook 16 can rotate flexibly to adapt to the connection requirement of different angles, and the connection is smoothly carried out, in the connection process, the stretching structure plays a role of adjusting and buffering, the spring connecting plate 7 on both sides of the fixed rod 6 is connected with the high-pressure spring 5, the top of the high-pressure spring 5 is connected with the spring fixed rod 4, when the vehicle runs on the bumpy road, the vibration is transmitted to the connecting device, the high-pressure spring 5 is stretched and contracted, the impact is buffered through the rotation of the spring connecting plate 7, if it is necessary to adjust the position of the connecting device or the pretightening force, the worker steps on the foot pedal 8, drives the spring connecting plate 7 to rotate, adjusts the stretching degree of the high-pressure spring 5, changes the stress state of the device, ensures the stability of the connection, the hanging fixing plate 20 and the hanging rod 19 work cooperatively to realize stable connection, the hanging fixing plate 20 is in L shape, the hanging rod sliding groove 21 on the side surface cooperates with the hanging rod 19, after the connection is completed, the hanging rod 19 slides in the sliding groove 21 to the appropriate position, the fixed connecting rod and the hanging fixing hole on the outer side of the hanging fixing plate 20 are used for being fixed with the connection object through the connecting pieces such as bolts, the connection is ensured to be tight, the goods are prevented from loosening and falling off in the transportation, and the safety of the goods transportation is ensured, when the hook 16 needs to be replaced, the fixed connection between the hanging fixing plate 20 and the connection object is released first, and then the balance pin 11 is taken out by sliding along the sliding groove 3, since the hook 16 is slidably installed on the balance pin 11, after the balance pin 11 is taken out, the hook 16 can be easily taken off, so that the replacement is conveniently and quickly completed, if the high-pressure spring 5 in the stretching structure needs to be replaced, the spring connecting plate 7 is rotated by stepping on the foot pedal 8, so that the partial tension of the high-pressure spring 5 is released, and the high-pressure spring 5 is conveniently disassembled and replaced, the guiding structure also plays an important role in the whole working process, the guiding block 12 is fixed on the top of the lower connecting plate 2, the inclined end is convenient for the balance pin 11 to smoothly enter, the central through groove provides sliding guidance for the balance pin 11, the mounting seat 13 is fixed on the side surface of the guiding block 12 and connected with the transport vehicle fixing plate 1, the telescopic rod 14 is rotatably installed on the mounting seat 13, the top connecting block 15 penetrates through the balance pin 11, and plays a role of auxiliary support and guidance in the sliding process of the balance pin 11, so that the balance pin 11 stably slides, and then the movement of the hook 16 is stable.

[0053] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A port transport vehicle connection device for easy replacement of parts, comprising a transport vehicle fixing plate (1), characterized in that: A set of symmetrical connecting plates (2) are fixedly installed at the upper and lower ends of one side of the transport vehicle fixing plate (1). A through groove is opened on the side of the transport vehicle fixing plate (1). A through sliding groove (3) is opened on the top of the connecting plate (2). A spring fixing rod (4) is fixedly installed on the side of the connecting plate (2) at the lower end. A fixing rod (6) is fixedly installed on the bottom of the transport vehicle fixing plate (1). Pull-out structures are provided on both sides of the fixing rod (6). A fixing platform (9) is fixedly installed on the upper surface of the pull-out structure. A connecting rod is fixedly installed at the center of the top of the fixing platform (9). The connecting seat (10) has a balance pin (11) rotatably mounted on its top. The balance pin (11) is slidably mounted in the groove (3). The top of the connecting plate (2) at the lower end is provided with a guide structure. A hook (16) is slidably mounted on the balance pin (11). A connecting structure is rotatably mounted on the other end of the hook (16). A connecting rod (18) is fixedly mounted on the other end of the connecting structure. Hanging rods (19) are fixedly mounted on both sides of the connecting rod (18). A hanging fixing plate (20) is slidably connected to the outside of the hanging rod (19).

2. The port transport vehicle connecting device for easy replacement of parts according to claim 1, characterized in that: The pull-out structure includes a high-pressure spring (5), a spring connecting plate (7), and a foot pedal (8). A set of parallel spring connecting plates (7) are rotatably connected to both sides of the fixing rod (6). A high-pressure spring (5) is fixedly connected to the inner side of the other end of the spring connecting plate (7). The top of the high-pressure spring (5) is fixedly connected to the spring fixing rod (4). A set of foot pedals (8) is fixedly installed on the outer side of the spring connecting plate (7).

3. The port transport vehicle connecting device for easy replacement of parts according to claim 1, characterized in that: The guiding structure includes a guide block (12), a mounting base (13), a telescopic rod (14), and a connecting block (15). The guide block (12) is fixedly installed on the top of the connecting plate (2) at the lower end. A through groove is provided in the center of the guide block (12). One end of the guide block (12) is inclined. A set of symmetrical mounting bases (13) are fixedly installed on the side of the guide block (12). The side of the mounting base (13) is fixedly connected to the transport vehicle fixing plate (1). The telescopic rod (14) is rotatably connected to the mounting base (13). The top of the telescopic rod (14) is fixedly connected to the connecting block (15). The middle part of the connecting block (15) passes through the balance pin (11).

4. A port transport vehicle connecting device for easy replacement of parts according to claim 1, characterized in that: One end of the hook (16) is semi-circular, and the hook (16) has an arc groove. The other end of the hook (16) has a groove, and the balance pin (11) has through holes on both sides of the groove.

5. A port transport vehicle connecting device for easy replacement of parts according to claim 1, characterized in that: The connection structure includes a connecting frame (17) and a connecting rod (18). The connecting frame (17) is rotatably installed in the groove of the balance pin (11). The connecting frame (17) is trapezoidal. The connecting rod (18) is fixedly installed at the other end of the connecting frame (17). The connecting rod (18) is fixedly connected to the connecting frame (17) through a set of symmetrical and parallel rods. Hanging rods (19) are fixedly connected to both sides of the other end of the connecting rod (18).

6. A port transport vehicle connecting device for easy replacement of parts according to claim 1, characterized in that: The mounting plate (20) is L-shaped, and a mounting rod groove (21) is opened on the side of the mounting plate (20). A mounting rod (19) is slidably connected in the mounting rod groove (21). A central fixed connecting plate is located on the outer side of the mounting plate (20).

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