Traction tool for semitrailer towing bracket

Abstract

The utility model relates to the technical field of traction tools, in particular to a traction tool for a semitrailer towing bracket, which comprises a traction seat, a bracket assembly and a traction tool pneumatic control system, the traction base and the traction tool pneumatic control system are both arranged on the upper portion of the support assembly. The support assembly comprises a forking groove, and fork teeth of a forklift are fixedly connected with the support assembly through the forking groove. The traction seat is connected with a semitrailer towing bracket; the traction tool pneumatic control system is connected with a towing bracket pneumatic control system of the semitrailer towing bracket, and the traction tool pneumatic control system is used for pressurizing the towing bracket pneumatic control system. According to the utility model, the semitrailer towing bracket can be conveniently and efficiently transferred in a maintenance area, the transferring process is simplified, and the working efficiency and the safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of traction tooling, in particular to a traction tooling used for a semitrailer trailer. Background Art

[0002] With the vigorous development of the domestic container terminal industry, the container throughput continues to grow, which has led to a significant increase in the demand and operation time of internal terminal transshipment equipment, especially container semi-trailers. As a key equipment for terminal transshipment, the number of container semi-trailer trailers has also increased, which has directly led to a significant increase in the number of trailer repairs and maintenance. Taking a large container terminal as an example, the terminal currently has 314 trailers, and the average number of trailers that need maintenance every day is between 2 and 4, and the number of trailers that need repairs due to failures reaches 3 to 5. However, the current maintenance site layout is long and narrow, and it is used interchangeably with the trailer maintenance area, which makes the trailer face greater space constraints during entry, exit and transfer operations.

[0003] Semi-trailer trailers have long bodies, no autonomous power, and automatically enter parking mode after being separated from the tractor, which makes it particularly difficult to move during daily maintenance. The traditional trailer movement method mainly relies on the collaborative operation of two forklifts to achieve the transfer of the trailer through joint lifting, lifting, moving and transposition operations. This operation method is highly dependent on the tacit cooperation between forklift drivers and has extremely high control requirements on the forklift's driving speed, turning radius and braking force.

[0004] However, in actual operation, due to the existence of human factors, such as inconsistent cooperation of drivers and operating errors, it is very easy to cause safety accidents such as collision and deformation between forklifts and trailers, slipping of forklift tines, turning torque overturning forklifts and even injuries to operators. These safety hazards not only seriously threaten the lives of operators, but also bring great risks to the normal operation of the terminal. Utility Model Content

[0005] The purpose of the utility model is to provide a towing tool for a semi-trailer trailer in order to solve at least one of the above technical problems.

[0006] The utility model provides a traction tool for a semi-trailer trailer, comprising a traction seat, a bracket assembly, and a traction tool air control system;

[0007] The traction seat and the traction tooling air control system are both arranged on the upper part of the bracket assembly;

[0008] The support assembly includes a fork-taking groove, and the fork tine of the forklift is fixedly connected to the support assembly through the fork-taking groove;

[0009] The fifth wheel is connected to the semi-trailer frame;

[0010] The traction tooling air control system is connected to the trailer air control system of the semi-trailer trailer, and the traction tooling air control system is used to pressurize the trailer air control system.

[0011] Furthermore, the traction seat includes: a saddle, a support, a lock hook, a pin block, a safety lock, and a handle control assembly;

[0012] The support is arranged on the top of the saddle, and the support is used to be fixedly connected to the bracket assembly; the saddle is provided with the pin block, one end of which is fixedly connected to the handle operating assembly, and the other end is fixedly connected to the lock hook; the handle operating assembly is provided with the safety lock, and the safety lock is used to fix the relative position of the handle operating assembly and the saddle.

[0013] Furthermore, when the fixation of the safety lock is released, the handle operating assembly is pulled outward, and the lock hook is in an open state driven by the pin block;

[0014] When the traction pin of the semi-trailer trailer is located in the locking hook and the locking hook is in a closed state, the traction seat is fixedly connected to the semi-trailer trailer.

[0015] Furthermore, the bracket assembly also includes: a base, a traction seat bracket, and an anti-drop locker;

[0016] Two fork-taking grooves are provided on one side of the base, and the positions and sizes of the fork-taking grooves match the fork teeth of the forklift;

[0017] The anti-drop lock is provided on the top of the base, the anti-drop lock and the fork-taking slot are located at the same end of the base, and the anti-drop lock is used to fix the fork tines of the forklift and the fork-taking slot;

[0018] The traction seat bracket is in an inverted U shape; the traction seat is fixed to the top of the traction seat bracket.

[0019] Further, the anti-drop locker comprises: a fixing member fixedly connected to the base, and a U-shaped locker rotatably connected to the fixing member;

[0020] The fork tine of the forklift is provided with a fixing bolt which penetrates through the fork tine and is threadedly connected, and the U-shaped lock buckle can be fixedly connected with the fixing bolt.

[0021] Furthermore, the traction tooling air control system is fixed to the gap between the traction seat and the traction seat bracket through a fixing device.

[0022] Furthermore, the base is made of 10mm steel plate, and the traction seat bracket is made of 180B channel steel.

[0023] Furthermore, the traction tooling air control system comprises: a first air reservoir and a second air reservoir connected in series, each air reservoir being provided with a pressure gauge and a safety valve;

[0024] The first air cylinder is provided with an air inlet, through which the first air cylinder and the second air cylinder are filled with air; the second air cylinder is provided with an air outlet, through which the trailer air control system is pressurized; both the air inlet and the air outlet are provided with a one-way valve.

[0025] Furthermore, the fifth wheel adopts a FUWA FW78B3 standard fifth wheel.

[0026] The beneficial effects of the utility model are:

[0027] The utility model makes full use of the excellent rotation characteristics between the traction seat and the traction pin, significantly reduces the turning radius of the trailer in a narrow maintenance area, and effectively avoids the safety risks that may occur during the transfer process.

[0028] The utility model has a reasonable design and can be used in conjunction with a 3.5-7T maintenance forklift in the field, so that one person and one vehicle can complete the movement of the trailer in the maintenance area, which greatly simplifies the operation process and improves work efficiency.

[0029] The utility model avoids the safety risks such as forklift tines slipping and forklift tail tilting caused by the synchronous cooperation of two forklifts in the traditional method through optimized design and technological innovation, and significantly improves the safety during the trailer transfer process.

[0030] The utility model not only improves the transfer efficiency, but also reduces the dependence on human resources, reduces the safety accidents caused by inconsistent human coordination, and thus reduces the cost of manpower and material resources.

[0031] The utility model improves the overall operational efficiency of the wharf by solving the potential safety hazards in the process of trailer transfer, and brings significant economic and social benefits to the logistics and transportation industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of a traction tooling for a semi-trailer trailer according to one embodiment of the utility model;

[0033] Figure 2 A side view of a towing tool for a semi-trailer trailer according to an embodiment of the utility model;

[0034] Figure 3 A top view of a traction tool for a semi-trailer trailer according to an embodiment of the utility model;

[0035] Figure 4This is a structural schematic diagram of a fifth wheel according to an embodiment of the present utility model;

[0036] Figure 5 This is a schematic diagram of the connection between the bracket assembly and the forklift according to one embodiment of the utility model;

[0037] Figure 6 This is a connection diagram of a traction tooling air control system according to one embodiment of the utility model;

[0038] Figure 7 The present invention is a schematic diagram of the application and connection of a special traction tool for a semi-trailer trailer in a field according to an embodiment of the present invention.

[0039] In the figure: 1, traction seat, 11, saddle, 12, support, 13, lock hook, 14, pin block, 15, safety lock, 16, handle control assembly, 2, bracket assembly, 21, fork picking groove, 22, base, 23, traction seat bracket, 24, anti-drop lock, 3, traction tooling air control system, 31, first air tank, 32, second air tank, 33, pressure gauge, 34, safety valve, 35, air inlet, 36, air outlet, 37, external air filling connector, 38, trailer pressure charging connector, 4, forklift, 41, fixing bolt, 5, semi-trailer trailer, 51, trailer air control system, 52, main air pipe, 53, control air pipe, 54, brake cylinder, 55, air storage device, 6, fixing device. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Figure 1 This is a schematic diagram of the overall structure of a traction tooling for a semi-trailer trailer according to one embodiment of the utility model; Figure 2 A side view of a towing tool for a semi-trailer trailer according to an embodiment of the utility model; Figure 3 This is a top view of a traction tool for a semi-trailer trailer according to an embodiment of the utility model. Figure 1-Figure 3 As shown, according to an embodiment of the utility model, a traction tool for a semi-trailer trailer includes a traction seat 1, a bracket assembly 2, and a traction tool air control system 3;

[0042] The traction seat 1 and the traction tooling air control system 3 are both arranged on the upper part of the bracket assembly 2;

[0043] The bracket assembly 2 includes a fork-taking groove 21, and the fork tine of the forklift 4 is fixedly connected to the bracket assembly 2 through the fork-taking groove 21;

[0044] The fifth wheel 1 is connected to the semi-trailer frame 5;

[0045] The traction tooling air control system 3 is connected to the trailer air control system 51 of the semi-trailer trailer 5 , and the traction tooling air control system 3 is used to pressurize the trailer air control system 51 .

[0046] In this embodiment, according to the basic structure of the towing disc of the semi-trailer trailer 5 and the structural characteristics of the fork, a towing tool for the semi-trailer trailer is designed, including a towing seat 1 located at the upper end of the bracket assembly 2 and a towing tool air control system 3. The towing seat 1 is installed and fixed to the bracket assembly 2 using 8 M16 high-strength anti-loosening bolts, and the towing tool air control system 3 is installed between the towing seat 1 and the bracket assembly 2.

[0047] The equipment used for transferring the semi-trailer trailer in the maintenance area includes a forklift 4, a traction tool for the semi-trailer trailer, an air pump for supplying air to the traction tool air control system 3, and a semi-trailer trailer 5. The forklift 4 is connected to the traction tool for the semi-trailer trailer through the fork teeth and the fork picking groove 21 on the bracket assembly 2, and the traction tool for the semi-trailer trailer is connected to the semi-trailer trailer 5 through the traction seat 1 and the traction pin of the semi-trailer trailer 5.

[0048] The utility model realizes convenient and efficient transfer of the semi-trailer towing frame in the maintenance area, simplifies the transfer process, and improves work efficiency and safety.

[0049] Figure 4 FIG. 1 is a schematic diagram of the structure of a fifth wheel according to an embodiment of the present invention. Figure 4 As shown, according to one embodiment of the utility model, the traction seat 1 includes: a saddle 11, a support 12, a lock hook 13, a pin block 14, a safety lock 15, and a handle operating assembly 16;

[0050] A support 12 is provided on the top of the saddle 11, and the support 12 is used to be fixedly connected to the bracket assembly 2; a pin block 14 is provided on the saddle 11, one end of the pin block 14 is fixedly connected to the handle operating assembly 16, and the other end is fixedly connected to the lock hook 13; a safety lock 15 is provided on the handle operating assembly 16, and the safety lock 15 is used to fix the relative position of the handle operating assembly 16 and the saddle 11;

[0051] When the safety lock 15 is released, the handle operating assembly 16 is pulled outward, and the lock hook 13 is opened under the drive of 14;

[0052] When the towing pin of the semi-trailer frame 5 is located in the locking hook 13 and the locking hook 13 is in a closed state, the fifth wheel 1 is fixedly connected to the semi-trailer frame 5 .

[0053] In this embodiment, the traction seat 1 is a standardized product, including a saddle 11, a support 12, a lock hook 13, a pin block 14, a safety lock 15, a handle operating assembly 16, etc. When the traction tool needs to be connected to the semi-trailer trailer 5, the safety lock 15 is opened, and the pull ring of the handle operating assembly 16 is manually pulled outward, and its force causes the pin block 14 to move outward through the pull rod, and the lock hook 13 rotates to a fully open state under the action of the spring, and the forklift 4 is operated to hit the traction tool in the direction of the traction pin of the semi-trailer trailer 5, and the lock hook 13 rotates to overcome the spring force, and the opening of the lock hook 13 is locked, and the pin block 14 moves inward and completely fits with the outer contour of the lock hook 13, and the locking action is completed, and the connection between the traction tool and the semi-trailer trailer 5 is completed. When the traction tool needs to be separated from the semi-trailer trailer 5, the opening of the lock hook 13 is opened to a fully open state according to the above steps, and the forklift 4 is operated to withdraw the traction pin of the semi-trailer trailer 5 to complete the separation of the traction tool and the semi-trailer trailer 5.

[0054] According to a preferred embodiment of the present embodiment, the fifth wheel 1 adopts a FUWA FW78B3 standard fifth wheel.

[0055] The utility model can efficiently complete the connection and separation with the semi-trailer trailer, ensures the stability of the connection and the convenience of operation through simple handle operation and safety lock fixation, and significantly improves the transfer efficiency of the semi-trailer trailer in the maintenance area.

[0056] Figure 5 This is a schematic diagram of the connection between the bracket assembly and the forklift according to one embodiment of the utility model. Figure 1 and Figure 5 As shown, according to an embodiment of the present utility model, the bracket assembly 2 further includes: a base 22, a traction seat bracket 23, and an anti-drop locker 24;

[0057] Two fork-taking grooves 21 are provided on one side of the base 22, and the position and size of the fork-taking grooves 21 match the fork teeth of the forklift 4;

[0058] An anti-drop lock 24 is provided on the top of the base 22. The anti-drop lock 24 and the fork-taking groove 21 are located at the same end of the base 22. The anti-drop lock 24 is used to fix the fork tines of the forklift 4 and the fork-taking groove 21.

[0059] The traction seat bracket 23 is in an inverted U shape; the traction seat 1 is fixed to the top of the traction seat bracket 23.

[0060] In this embodiment, the bracket assembly 2 includes a fork groove 21, a base 22, a traction seat bracket 23, and an anti-drop lock 24. The base 22 is made of 10 mm steel plate, the fork groove 21 is located on one side of the base 22, the anti-drop lock 24 and the fork groove 21 are located at the same end of the base 22, the traction seat bracket 23 is located at the end away from the anti-drop lock 24, the traction seat bracket 23 is made of 180B channel steel, and the traction seat bracket 23 is used to support and connect the traction seat 1; the base 22 and the traction seat bracket 23 are connected by welding, and the anti-drop lock 24 is installed and fixed to one side of the base 22 with M36*220 high-strength bolts.

[0061] The utility model effectively improves the stability and safety of the forklift's forking operation; the fork picking groove matches the forklift's fork teeth, which is convenient for the forklift to pick up accurately; the anti-drop locker fixes the fork teeth and the fork picking groove to prevent them from falling off during transportation; the towing seat bracket supports and connects the towing seat, ensuring the stability of the towing seat; the entire bracket assembly adopts high-strength materials and is welded to improve the strength and durability of the overall structure.

[0062] According to an embodiment of the present utility model, the anti-drop locker 24 includes: a fixing member fixedly connected to the base 22, and a U-shaped locker rotatably connected to the fixing member;

[0063] The fork tine of the forklift 4 is provided with a fixing bolt 41 which penetrates through the fork tine and is threadedly connected, and the U-shaped lock buckle can be fixedly connected to the fixing bolt 41 .

[0064] In this embodiment, the forklift 4 is connected to the fork-picking slot 21 of the traction tooling through the fork teeth during operation. In order to prevent the tail of the forklift 4 from lifting, the base 22 needs to be as close to the inner arm of the fork teeth as possible, and the anti-drop locker 24 needs to be lowered, and the fixing bolt 41 is inserted into the U-shaped lock, and the U-shaped lock is fixedly connected to the fork teeth to prevent the traction tooling from slipping during the operation of the forklift 4. The fixing bolt 41 is a high-strength M24x200 bolt, which is threaded through the fork teeth, and the size of the fixing bolt 41 matches the size of the U-shaped lock to ensure that the U-shaped lock will not detach from the fixing bolt 41.

[0065] The anti-slip lock device of the utility model has a simple structure and enhances the connection stability between the forklift and the traction tooling; through the stable connection between the fixing component and the base, and the close cooperation between the U-shaped lock and the fixing bolts on the fork tines of the forklift, the possible slipping of the traction tooling during the operation of the forklift is effectively prevented, thereby greatly improving the work safety and stability.

[0066] According to an embodiment of the present utility model, the traction tooling air control system 3 is fixed to the gap between the traction seat 1 and the traction seat bracket 23 by the fixing device 6 .

[0067] In this embodiment, the traction tooling air control system 3 and the bracket assembly can be detachably connected and fixed in the gap between the traction seat 1 and the traction seat bracket 23 by the fixing device 6, which can save space and shorten the connection line between the traction tooling air control system 3 and the trailer air control system 51.

[0068] Figure 6 This is a schematic diagram of the connection of the pneumatic control system of a traction tooling according to one embodiment of the utility model. Figure 6 As shown, the traction tooling air control system 3 includes: a first air reservoir 31 and a second air reservoir 32 connected in series, each of which is provided with a pressure gauge 22 and a safety valve 34;

[0069] The first air cylinder 31 is provided with an air inlet 35, through which air is added to the first air cylinder 31 and the second air cylinder 32; the second air cylinder 32 is provided with an air outlet 36, through which the trailer air control system 51 is pressurized; both the air inlet 35 and the air outlet 36 are provided with a one-way valve.

[0070] In this embodiment, the traction tooling air control system 3 uses a 20L gas cylinder as the first air cylinder 31 and the second air cylinder 32. The first air cylinder 31 and the second air cylinder 32 have an air filling pressure of 1.0-1.2MPa and a starting pressure of 1.25MPa. Each air cylinder is provided with a pressure gauge 22 and a safety valve 34. The first air cylinder 31 is provided with an air inlet 35, and the second air cylinder 32 is provided with an air outlet 36. The external air pump is connected to the external air filling connector 37, and the first air cylinder 31 and the second air cylinder 32 are filled with air through the air inlet 35. The traction tooling air control system 3 is connected to the trailer pressure charging connector 38 through the air outlet 36 to charge the main air pipe 52 of the trailer air control system 51. The trailer air control system 51 adopts a common system in the art, including: a main air pipe 52, a control air pipe 53, a brake cylinder 54 and an air storage device 55. As a prior art, its specific working process is not described here.

[0071] Working principle:

[0072] Figure 7 This is a schematic diagram of the application and connection of a special traction tool for a semi-trailer trailer in a field according to an embodiment of the utility model. Figure 7 As shown, the fork tine of the forklift 4 is inserted into the corresponding fork-taking groove 21, the anti-drop lock 24 is pressed down, the fixing bolt 41 is inserted into the U-shaped lock, the U-shaped lock is fixedly connected to the fork tine, and the forklift 4 is fixedly connected to the traction tooling;

[0073] To open the safety lock 15, manually pull the pull ring of the handle operating assembly 16 outward, and the force thereof moves the pin block 14 outward through the pull rod, and the lock hook 13 rotates to a fully open state under the action of the spring;

[0074] Adjust the height of the fork tine of the forklift 4 until the upper plane of the traction seat 1 of the traction tool is basically flush with the lower plane of the traction plate of the semi-trailer trailer 5, operate the forklift 4 to move forward, and after it is in place, the traction pin belonging to the traction plate of the semi-trailer trailer 5 enters the lock hook 13 of the traction seat 1, and the push handle operating assembly 16 automatically returns to its original position, and the lock hook 13 and the pin block 14 move to the locked state, and the connection between the traction tool and the semi-trailer trailer 5 (traction pin) is completed;

[0075] The trailer pressurizing joint 38 adopts a universal quick switch for the semi-trailer trailer 5, which can be directly connected to the air port of the semi-trailer trailer 5 for quick charging; after the charging is completed, check and confirm whether the brake cylinder 54 of the semi-trailer trailer 5 is operating normally; drive the fork tine of the forklift 4 to rise until the semi-trailer trailer 5 foot is about 15-30CM off the ground, and the forklift 4 can move the semi-trailer trailer 5 forward, backward, left and right; during the movement of the semi-trailer trailer 5, a special person is required to direct, and the forklift 4 operator needs to drive carefully, and the speed is controlled within 10KM / H; the semi-trailer trailer 5 moves to the designated position, the fork tine of the forklift 4 is lowered until the semi-trailer trailer 5 foot contacts the ground, the charging pipe is removed, the top handle operating assembly 16 is pulled open, the lock hook 13 is opened, and the traction tooling can be separated from the semi-trailer trailer 5 (traction pin), and the traction tooling is withdrawn.

[0076] The utility model utilizes the excellent turning characteristics of the tow seat and the high maneuverability of the small forklift, and the effective turning radius of the semi-trailer trailer transfer is significantly reduced. The utility model has a simple structure and is easy, safe and reliable to operate, and can meet the safety requirements of short-distance movement of the semi-trailer trailer in narrow maintenance places.

[0077] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0078] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A towing tool for a semi-trailer trailer, comprising a fifth wheel (1), characterized in that: Also includes: Bracket assembly (2), traction tooling air control system (3); The traction seat (1) and the traction tooling air control system (3) are both arranged on the upper part of the bracket assembly (2); The support assembly (2) comprises a fork-taking groove (21), and the fork tine of the forklift (4) is fixedly connected to the support assembly (2) via the fork-taking groove (21); The traction seat (1) is connected to the semi-trailer trailer (5); The traction tooling air control system (3) is connected to the trailer air control system (51) of the semi-trailer trailer (5), and the traction tooling air control system (3) is used to pressurize the trailer air control system (51).

2. The traction tool for a semi-trailer trailer according to claim 1, characterized in that: The traction seat (1) comprises: a saddle (11), a support (12), a lock hook (13), a pin block (14), a safety lock (15), and a handle operating assembly (16); The support (12) is arranged on the top of the saddle (11), and the support (12) is used to be fixedly connected to the bracket assembly (2); the saddle (11) is provided with the pin block (14), one end of the pin block (14) is fixedly connected to the handle operating assembly (16), and the other end is fixedly connected to the lock hook (13); the handle operating assembly (16) is provided with the safety lock (15), and the safety lock (15) is used to fix the relative position of the handle operating assembly (16) and the saddle (11).

3. The traction tool for a semi-trailer trailer according to claim 2, characterized in that: When the fixation of the safety lock (15) is released, the handle operating assembly (16) is pulled outward, and the lock hook (13) is opened under the drive of the pin block (14); When the traction pin of the semi-trailer trailer (5) is located in the locking hook (13) and the locking hook (13) is in a closed state, the traction seat (1) is fixedly connected to the semi-trailer trailer (5).

4. The traction tool for a semi-trailer trailer according to claim 1, characterized in that: The bracket assembly (2) further comprises: a base (22), a traction seat bracket (23), and an anti-drop locker (24); Two fork-taking grooves (21) are provided on one side of the base (22), and the positions and sizes of the fork-taking grooves (21) match the fork teeth of the forklift (4); The anti-drop lock (24) is provided on the top of the base (22), the anti-drop lock (24) and the fork-taking groove (21) are located at the same end of the base (22), and the anti-drop lock (24) is used to fix the fork tines of the forklift (4) and the fork-taking groove (21); The traction seat bracket (23) is in an inverted U shape; the traction seat (1) is fixed to the top of the traction seat bracket (23).

5. The traction tool for a semi-trailer trailer according to claim 4, characterized in that: The anti-drop locker (24) comprises: a fixing member fixedly connected to the base (22), and a U-shaped lock rotatably connected to the fixing member; The fork tine of the forklift (4) is provided with a fixing bolt (41) penetrating the fork tine and being threadedly connected, and the U-shaped lock buckle can be fixedly connected to the fixing bolt (41).

6. The traction tool for a semi-trailer trailer according to claim 4, characterized in that: The traction tooling air control system (3) is fixed to the gap between the traction seat (1) and the traction seat bracket (23) via a fixing device (6).

7. The traction tool for a semi-trailer trailer according to claim 4, characterized in that: The base (22) is made of 10 mm steel plate, and the traction seat bracket (23) is made of 180B channel steel.

8. The traction tool for a semi-trailer trailer according to claim 1, characterized in that: The traction tooling air control system (3) comprises: a first air storage cylinder (31) and a second air storage cylinder (32) connected in series, each air storage cylinder being provided with a pressure gauge (33) and a safety valve (34); The first air storage cylinder (31) is provided with an air inlet (35), through which air is added to the first air storage cylinder (31) and the second air storage cylinder (32); the second air storage cylinder (32) is provided with an air outlet (36), through which pressure is charged to the trailer air control system (51); and both the air inlet (35) and the air outlet (36) are provided with a one-way valve.

9. The traction tool for a semi-trailer trailer according to claim 1, characterized in that: The fifth wheel (1) adopts a FUWA FW78B3 standard fifth wheel.

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