A detachable self-lifting gooseneck device

Abstract

This utility model discloses a detachable self-lifting gooseneck device, relating to the technical field of semi-trailer cargo transport vehicles. It includes a tractor unit, a gooseneck assembly, a connecting frame assembly, and a cargo platform assembly. A gooseneck saddle is located in the middle of the tractor unit, and a support seat is located at the right end of the tractor unit. A traction pin is located at the bottom left end of the gooseneck assembly, and a gooseneck support hydraulic cylinder is vertically downwards in the middle. A gooseneck lifting hydraulic cylinder is horizontally positioned to the right in the middle of the gooseneck assembly. The gooseneck lifting hydraulic cylinder is connected to the top right end of the connecting frame assembly, and the lower right end of the gooseneck assembly is hinged to the bottom left end of the connecting frame assembly via a connecting main shaft. The middle left end of the cargo platform assembly is engaged with the connecting main shaft. This invention achieves convenient assembly and disassembly while ensuring structural strength and transport reliability: it can comprehensively withstand gravity, acceleration and deceleration impacts during assembly and disassembly, and secondary torque caused by poor road conditions, ensuring a safe and reliable structural structure.

Description

Technical Field

[0001] This utility model relates to the technical field of semi-trailer cargo transport vehicles, and more specifically, it is a detachable self-lifting gooseneck device. Background Technology

[0002] In traditional gooseneck semi-trailers, the gooseneck and the cargo platform are welded together as an inseparable whole. While this non-detachable welded structure has the advantages of simplicity and reliability, it also inevitably causes impact when the trailer is coupled to the tractor. Uncoupling requires lowering the support device at the gooseneck, which is time-consuming and labor-intensive. Loading and unloading can only be done from the rear of the axle, resulting in a single and inflexible loading and unloading method. When empty trailers are parked in a concentrated and dense manner, they cannot be stacked to utilize vertical space, resulting in a large footprint. This vehicle structure combines multiple shortcomings, ultimately leading to a direct or indirect increase in the operating costs of transportation companies.

[0003] The problems raised by market feedback will naturally urge us, the design and manufacturing enterprises of freight transport equipment, to seek innovation and change. The design goal is to solve a series of problems caused by the gooseneck fixing of this type of trailer while retaining the existing advantages of fixed gooseneck trailer technology, so as to further improve the product's functionality and application prospects.

[0004] Therefore, it is necessary to develop and design a detachable, self-lifting gooseneck device and its usage method that retains the advantages of gooseneck semi-trailers while designing the gooseneck as a special structure that is detachable, liftable, simple and reliable, so as to facilitate the whole vehicle to achieve multiple advantages such as impact-free coupling, support-free uncoupling, front and rear double loading and unloading, and empty vehicle body stacking. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and to provide a detachable self-lifting gooseneck device.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a detachable self-lifting gooseneck device, characterized in that it includes a tractor, a gooseneck assembly, a connecting frame assembly, and a cargo platform assembly;

[0007] The tractor is equipped with a gooseneck saddle in the middle and a support seat at the right end.

[0008] The gooseneck assembly has a traction pin at the bottom left end, a gooseneck support hydraulic cylinder vertically downward in the middle, and a gooseneck lifting hydraulic cylinder horizontally to the right in the middle of the gooseneck assembly. The traction pin matches the gooseneck saddle, and the gooseneck support hydraulic cylinder matches the support base. The gooseneck lifting hydraulic cylinder is connected to the top right end of the connecting frame assembly, and the lower right end of the gooseneck assembly is hinged to the bottom left end of the connecting frame assembly via a connecting spindle.

[0009] A locking cylinder is vertically downwardly installed inside the connecting frame assembly;

[0010] The middle left end of the platform assembly is connected to the connecting spindle via a traction head assembly; the top of the traction head assembly is provided with a locking groove that matches the end of the locking cylinder piston rod.

[0011] In the above technical solution, small scaffolding boards are hinged to both sides of the left end of the cargo platform assembly.

[0012] In the above technical solution, the two traction head assemblies are spaced apart at the middle of the left end of the platform assembly, and the left end of the traction head assembly and the connecting spindle are connected by a tiger-mouth shaped locking hole.

[0013] In the above technical solution, the two gooseneck support hydraulic cylinders are spaced apart in the middle of the gooseneck assembly.

[0014] In the above technical solution, the gooseneck support hydraulic cylinder, the gooseneck lifting hydraulic cylinder, and the locking cylinder are all connected to the operating handle.

[0015] In the above technical solution, the gooseneck assembly has a cylinder seat arranged laterally in the middle and a hinge support at the bottom right end; the connecting frame assembly has a cylinder lug plate at the top right end and a bushing at the bottom left end.

[0016] The left end of the gooseneck lifting hydraulic cylinder is connected to the cylinder seat via a pin, and the right end is connected to the cylinder ear plate.

[0017] The connecting spindle passes through the hinge support and the bushing.

[0018] In the above technical solution, a connecting seat is provided at the bottom right side of the connecting frame assembly, and the connecting seat is detachably connected to the traction head assembly by locking bolts.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] 1) The detachable gooseneck assembly of this utility model is connected to the main shaft and the traction head assembly by a special-shaped snap hole, which realizes both convenient disassembly and assembly and ensures the strength and transportation reliability: it can comprehensively withstand gravity, acceleration and deceleration and the impact of disassembly and assembly, as well as the secondary torque caused by poor road conditions, and the stress structure is safe and reliable.

[0021] 2) In this utility model, regardless of whether the vehicle is heavily loaded or unloaded, the transmission path of traction force and total mass support force is: gooseneck assembly → gooseneck lifting hydraulic cylinder → connecting main shaft → connecting frame assembly → traction head assembly → cargo platform assembly. All components involved in this transmission path are rigid components. The locking cylinders and locking bolts involved in the disassembly and assembly process are only positioning components. Their purpose is to keep the corresponding components in close contact and maintain the correct positional relationship. They do not participate in the transmission of force. Therefore, the overall force state of this utility model is statically determinate and reliable.

[0022] 3) The gooseneck lifting hydraulic cylinder of this utility model is located at the top of the gooseneck assembly, which can provide a sufficiently long effective rotating arm, improving efficiency and reliability and reducing costs.

[0023] 4) The gooseneck assembly and the connecting frame assembly of this utility model achieve relative rotation around the axis of the connecting main shaft through the gooseneck lifting hydraulic cylinder; since the connecting frame assembly and the cargo platform assembly are connected as a whole through the traction head assembly, the connecting main shaft, the locking cylinder, and the locking bolt, they form an integral component that cannot be relatively displaced, thus also forming relative rotation between the gooseneck assembly and the cargo platform assembly; therefore, when the traction pin of the gooseneck assembly is fixed in the gooseneck saddle, the extension of the gooseneck lifting hydraulic cylinder realizes the free lifting and lowering of the entire vehicle cargo platform. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a top view of the gooseneck assembly.

[0026] Figure 3 This is a structural diagram of the gooseneck assembly, connecting frame assembly, and platform assembly when the left end of the platform assembly is in contact with the ground.

[0027] Figure 4 This is a schematic diagram of the structure connecting the main shaft.

[0028] Figure 5 This is a schematic diagram of the locking cylinder.

[0029] Figure 6 This is a front view of the gooseneck assembly.

[0030] Figure 7 This is a top view of the gooseneck assembly.

[0031] Figure 8 This is a side view of the gooseneck assembly.

[0032] Figure 9 This is a front view of the connecting bracket assembly.

[0033] Figure 10 This is a top view of the connecting frame assembly.

[0034] Figure 11 This is a side view of the connecting frame assembly.

[0035] Figure 12 for Figure 9 Sectional view at point AA.

[0036] Figure 13 This is a front view of the traction head assembly.

[0037] Figure 14 This is a top view of the traction head assembly.

[0038] Figure 15 This is a schematic diagram of the small springboard.

[0039] Figure 16 This is a schematic diagram of the hydraulic principle of this utility model.

[0040] Among them, 100-tractor, 110-gooseneck saddle, 120-support seat, 200-gooseneck assembly, 210-traction pin, 220-gooseneck support hydraulic cylinder, 230-gooseneck lifting hydraulic cylinder, 231-pin shaft, 240-connecting main shaft, 250-cylinder seat, 260-hinge support, 300-connecting frame assembly, 310-locking cylinder, 311-locking cylinder seat, 320-shaft sleeve, 330-connecting seat, 331-locking bolt, 340-cylinder ear plate, 400-cargo platform assembly, 500-traction head assembly, 510-locking groove, 520-slot, 600-small scaffold, 610-handle. Detailed Implementation

[0041] The following detailed description, in conjunction with the accompanying drawings, illustrates the implementation of this utility model. However, these descriptions do not constitute a limitation of the present utility model and are merely illustrative. Furthermore, the advantages of this utility model will become clearer and easier to understand through this description.

[0042] Referring to the attached drawings, a detachable self-lifting gooseneck device is characterized by comprising a tractor 100, a gooseneck assembly 200, a connecting frame assembly 300, and a cargo platform assembly 400.

[0043] The tractor 100 is provided with a gooseneck saddle 110 in the middle and a support seat 120 at the right end of the tractor 100.

[0044] The gooseneck assembly 200 has a traction pin 210 at the bottom left end, a gooseneck support hydraulic cylinder 220 vertically downward in the middle, and a gooseneck lifting hydraulic cylinder 230 horizontally to the right in the middle of the gooseneck assembly 200. The traction pin 210 matches the gooseneck saddle 110, and the gooseneck support hydraulic cylinder 220 matches the support base 120. The gooseneck lifting hydraulic cylinder 230 is connected to the top right end of the connecting frame assembly 300, and the lower right end of the gooseneck assembly 200 is hinged to the bottom left end of the connecting frame assembly 300 via a connecting spindle 240.

[0045] A locking cylinder 310 is vertically arranged downward inside the connecting frame assembly 300; a locking cylinder seat 311 is provided inside the connecting frame assembly 300, and the locking cylinder 310 is installed inside the locking cylinder seat 311.

[0046] The middle of the left end of the platform assembly 400 is connected to the connecting spindle 240 via the traction head assembly 500; the top of the traction head assembly 500 is provided with a locking groove 510 that matches the end of the piston rod of the locking cylinder 310.

[0047] Both sides of the left end of the platform assembly 400 are hinged with small ramps 600. A handle 610 is provided on the left side of the small ramp 600, which facilitates the opening and closing of the small ramp 600.

[0048] The two traction head assemblies 500 are spaced apart at the middle of the left end of the platform assembly 400, and the left end of the traction head assembly 500 and the connecting spindle 240 are connected by a tiger-mouth shaped locking hole 520.

[0049] The two gooseneck support hydraulic cylinders 220 are spaced apart in the middle of the gooseneck assembly 200.

[0050] The gooseneck support hydraulic cylinder 220, the gooseneck lifting hydraulic cylinder 230, and the locking cylinder 310 are all connected to the operating handle.

[0051] The gooseneck assembly 200 has a cylinder seat 250 horizontally arranged in the middle and a hinge support 260 arranged at the bottom right end; the connecting frame assembly 300 has a cylinder ear plate 340 at the top right end and a bushing 320 at the bottom left end.

[0052] The left end of the gooseneck lifting hydraulic cylinder 230 is connected to the cylinder seat 250 via a pin 231, and the right end is connected to the cylinder ear plate 340.

[0053] The connecting spindle 240 passes through the hinge support 260 and the bushing 320.

[0054] A connecting seat 330 is provided at the bottom right side of the connecting frame assembly 300. The connecting seat 330 is detachably connected to the traction head assembly 500 by a locking bolt 331.

[0055] A method for using a detachable self-lifting gooseneck device, characterized in that it includes a disassembly method and an assembly method;

[0056] The disassembly method includes the following steps:

[0057] Step 1, Uninstall:

[0058] like Figure 3As shown, when the vehicle is parked, the towing pin 210 is connected to the gooseneck saddle 110; by operating the handle of the gooseneck lifting hydraulic cylinder 230, the gooseneck lifting hydraulic cylinder 230 is shortened and the relative angle between the gooseneck assembly 200 and the platform assembly 400 is deflected, causing the left end of the platform assembly 400 to descend to contact the ground, and the support point is transferred from the gooseneck saddle 110 to the point where the platform assembly 400 contacts the ground, so that the gooseneck assembly 300 is in a non-load-bearing unloading state.

[0059] Step 2, Unlock:

[0060] By operating the operating handle of the locking cylinder 310, the locking cylinder 310 is retracted and unlocked, the locking bolt 331 of the connecting seat 330 is loosened, and the entire gooseneck assembly 200 and the connecting frame assembly 300 are in a fully unlocked state relative to the platform assembly 400.

[0061] Step 3, detachment:

[0062] By operating the handle of the gooseneck support hydraulic cylinder 220, the gooseneck assembly 200 and the connecting frame assembly 300 are linked as a whole and descend along an arc swing trajectory; when the connecting spindle 240 disengages from the tiger-mouth shaped locking hole 520 in the traction head assembly 500, the traction vehicle 100 is moved, so that the gooseneck assembly 200 and the connecting frame assembly 300 are disengaged from the platform assembly 400, thus realizing the disassembly and separation of the gooseneck.

[0063] The assembly method includes the following steps:

[0064] Step 1, Connection:

[0065] The traction pin 210 is connected to the gooseneck saddle 110. The tractor 100, gooseneck assembly 200, and connecting frame assembly 300 approach the platform assembly 400 parked on the ground. By operating the handle of the gooseneck support hydraulic cylinder 220, the gooseneck assembly 200 and the connecting frame assembly 300, as a whole, move in a circular arc trajectory downwards until the connecting spindle 240 is below the tiger-mouth shaped locking hole 520. At this point, the tractor 100 moves slightly until the connecting spindle 240 contacts the tiger-mouth shaped locking hole 520. Then, the tractor 100 continues to operate the handle of the gooseneck support hydraulic cylinder 220, causing the connecting spindle 240 to slowly swing upwards in an arc trajectory until it contacts the tiger-mouth shaped locking hole 520 and locks in the arc position. At this point, the gooseneck assembly 200 and the connecting frame assembly 300 are connected to the platform assembly 400.

[0066] Step 2, Lock:

[0067] The locking bolt 331 is passed through the connecting hole between the traction head assembly 500 and the connecting seat 330 and tightened to make the two fit tightly together; then the operating handle of the locking cylinder 310 is operated to extend the locking cylinder 310, and the locking ball head at the piston rod end of the locking cylinder 310 fits tightly into the locking groove 510 of the traction head assembly 500 to complete the locking action of the locking cylinder 310.

[0068] Step 3, Lifting:

[0069] Operate the operating handle of the gooseneck lifting hydraulic cylinder 230 to extend the gooseneck lifting hydraulic cylinder 230. At the same time, the relative rotation between the gooseneck assembly 200 and the connecting frame assembly 300 will drive the front end of the platform assembly 400 to rise to the same level as the platform surface of the platform assembly 400, thus completing the assembly of the entire gooseneck.

[0070] After step 3 of the disassembly method, the platform assembly 400 is parked completely independently on the ground, without being restricted by whether it is empty or heavily loaded. If the platform assembly 400 is empty, multiple platform assemblies 400 can be stacked and parked in space. The small ramp 600 at the ground contact point of the platform assembly 400 is lowered, and the rear wheel set of the next platform assembly 400 reverses to the right end of the previous platform assembly 400 through the small ramp 600, thus achieving the stacking and parking of multiple platform assemblies 400.

[0071] In summary, this utility model provides an innovative technology that uses a detachable and liftable special gooseneck device to enable the rapid unhooking and on-site storage of goods and cargo platform assemblies 400 together, without the need for a front support device, allowing for front and rear dual loading and unloading, and stacking and storing multiple cargo platform assemblies 400. The ultimate goal is to solve the various problems and inconveniences caused by the permanent connection between the gooseneck and the vehicle body of ordinary gooseneck trailers, thereby increasing the application scenarios, simplifying operation, and reducing costs.

[0072] Furthermore, regardless of whether the vehicle is heavily loaded or unloaded, the transmission path of traction force and total mass support force in this utility model is as follows: gooseneck assembly → gooseneck lifting hydraulic cylinder → connecting main shaft → connecting frame assembly → traction head assembly → cargo platform assembly. All components involved in this transmission path are rigid components. The locking cylinders and locking bolts involved in the disassembly and assembly methods of this utility model are only positioning components, intended to ensure that the corresponding components are in close contact and maintain the correct positional relationship, and do not participate in the transmission of force. Therefore, the overall force state of this utility model is statically stable and reliable, and the operation process is simple and clear.

[0073] All other unspecified parts belong to the prior art.

Claims

1. A detachable self-lifting gooseneck device, characterized in that: Includes a tractor (100), a gooseneck assembly (200), a connecting frame assembly (300), and a cargo platform assembly (400); The tractor (100) is provided with a gooseneck saddle (110) in the middle and a support seat (120) at the right end of the tractor (100); The gooseneck assembly (200) has a traction pin (210) at the bottom left end, a gooseneck support hydraulic cylinder (220) vertically downward in the middle, and a gooseneck lifting hydraulic cylinder (230) horizontally to the right in the middle of the gooseneck assembly (200). The traction pin (210) matches the gooseneck saddle (110), and the gooseneck support hydraulic cylinder (220) matches the support base (120). The gooseneck lifting hydraulic cylinder (230) is connected to the top right end of the connecting frame assembly (300), and the lower right end of the gooseneck assembly (200) is hinged to the bottom left end of the connecting frame assembly (300) through the connecting spindle (240). A locking cylinder (310) is vertically downwardly installed inside the connecting frame assembly (300); The middle of the left end of the platform assembly (400) is connected to the connecting spindle (240) via the traction head assembly (500); the top of the traction head assembly (500) is provided with a locking groove (510) that matches the end of the piston rod of the locking cylinder (310).

2. The detachable self-lifting gooseneck device according to claim 1, characterized in that: Small scaffolding boards (600) are hinged to both sides of the left end of the platform assembly (400).

3. The detachable self-lifting gooseneck device according to claim 1, characterized in that: The two traction head assemblies (500) are spaced apart at the middle of the left end of the platform assembly (400), and the left end of the traction head assembly (500) is connected to the connecting spindle (240) with a tiger-mouth shaped locking hole (520).

4. The detachable self-lifting gooseneck device according to claim 1, characterized in that: The two gooseneck support hydraulic cylinders (220) are spaced apart in the middle of the gooseneck assembly (200).

5. A detachable self-lifting gooseneck device according to claim 1, characterized in that: The gooseneck support hydraulic cylinder (220), gooseneck lifting hydraulic cylinder (230), and locking cylinder (310) are all connected to the operating handle.

6. A detachable self-lifting gooseneck device according to claim 5, characterized in that: The gooseneck assembly (200) has a cylinder seat (250) arranged laterally in the middle and a hinge support (260) arranged at the bottom right end; the connecting frame assembly (300) has a cylinder ear plate (340) at the top right end and a bushing (320) at the bottom left end; The left end of the gooseneck lifting hydraulic cylinder (230) is connected to the cylinder seat (250) via a pin (231), and the right end is connected to the cylinder ear plate (340); The connecting spindle (240) passes through the hinge support (260) and the bushing (320).

7. A detachable self-lifting gooseneck device according to claim 1, characterized in that: A connecting seat (330) is provided on the bottom right side of the connecting frame assembly (300), and the connecting seat (330) is detachably connected to the traction head assembly (500) by a locking bolt (331).

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