Self-locking type hydraulic supporting mechanism

Abstract

The utility model discloses a self-locking type hydraulic supporting mechanism, which belongs to the technical field of transport trailer structures, and particularly comprises a trailer, a hydraulic cylinder and an anti-overturning structure, and the trailer is provided with an air cylinder and a vehicle-mounted storage battery; the hydraulic cylinder is connected with a vehicle-mounted storage battery, the hydraulic cylinder replaces a front side supporting leg of the trailer, a cylinder body a of the hydraulic cylinder is installed on the front side of the trailer, and a piston rod a of the hydraulic cylinder points to the ground. The anti-overturning structure is arranged between the cylinder body a and the piston rod a and used for preventing the piston rod a from retracting inwards, the self-locking type hydraulic supporting mechanism can be remotely controlled to automatically ascend and descend (or can be operated in a cab) under the condition of power failure and fuel cut, a traction disc can be separated from a trailer, and disengaging and connecting of the tractor and the trailer can be completed in about one minute. And the labor intensity and the unhooking time are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of transport trailer structure technology, and in particular to a self-locking hydraulic support mechanism. Background Technology

[0002] In short-distance transshipment between ports, warehouses, and cities, a swap-trailer transport mode is generally used to improve transport efficiency. In swap-trailer transport, one tractor unit can tow multiple trailers. During the transport process, the driver and the tractor unit do not need to wait for the trailers to be loaded or unloaded. They can directly detach the trailers and switch to empty or fully loaded trailers for transport, which greatly improves production efficiency. It is widely used in short-distance transshipment in ports, warehouses, etc.

[0003] The existing problem with trailer swapping is that, regardless of whether it is heavily loaded or lightly loaded, the trailer must be manually raised and lowered by cranking the outriggers to separate the tractor and trailer, thus achieving uncoupling. However, manually cranking the outriggers takes a long time, and it is also very laborious for heavy loads. Short-distance transport is usually not long, generally around half an hour, but manual trailer swapping takes more than ten minutes, resulting in wasted time on uncoupling. Based on this situation, this remote-controlled automatic raising and lowering and automatic locking trailer swapping mechanism was designed and developed. Utility Model Content

[0004] The purpose of this utility model is to provide a self-locking hydraulic support mechanism. The self-locking hydraulic support mechanism can be remotely controlled for automatic lifting (or operated from the cab), which can separate the tractor from the trailer. The detachment and connection of the tractor and trailer can be completed in about 1 minute, which greatly reduces labor intensity and detachment time.

[0005] To address the time-consuming and labor-intensive detachment operation in existing technologies, this application provides a self-locking hydraulic support mechanism, comprising a trailer, a hydraulic cylinder, and an anti-tipping structure. The trailer is equipped with an air tank and an onboard battery. The hydraulic cylinder is connected to the onboard battery and replaces the front outrigger of the trailer. The cylinder body a of the hydraulic cylinder is mounted on the front side of the trailer, and the piston rod a of the hydraulic cylinder points towards the ground. The anti-tipping structure is disposed between the cylinder body a and the piston rod a to prevent the piston rod a from retracting in the event of power or oil failure.

[0006] Furthermore, this application provides a self-locking hydraulic support mechanism, which further includes a cylinder protective sleeve and a piston rod protective sleeve. The cylinder protective sleeve clamps and wraps around the cylinder a, and the upper section of the cylinder protective sleeve is fixed to the trailer. The piston rod protective sleeve clamps and wraps around the piston rod a, and the upper end of the piston rod protective sleeve passes between the cylinder a and the cylinder protective sleeve, and the lower end is connected to the outer end of the piston rod a through a pin.

[0007] Further, the self-locking hydraulic support mechanism provided by the application further comprises a support foot plate, one ear plate is arranged at each end of the support foot plate, and the two ear plates are respectively hinged to the two ends of the pin shaft.

[0008] Further, the self-locking hydraulic support mechanism provided by the application further comprises a support foot plate, one ear plate is arranged at each end of the support foot plate, and the two ear plates are respectively hinged to the two ends of the pin shaft.

[0009] Further, the self-locking hydraulic support mechanism provided by the application further comprises a support foot plate, one ear plate is arranged at each end of the support foot plate, and the two ear plates are respectively hinged to the two ends of the pin shaft.

[0010] Further, the self-locking hydraulic support mechanism provided by the application further comprises a support foot plate, one ear plate is arranged at each end of the support foot plate, and the two ear plates are respectively hinged to the two ends of the pin shaft.

[0011] The self-locking hydraulic support mechanism provided by the application has the following beneficial effects compared with the prior art: the hydraulic cylinder body is installed in the support body, so that the hydraulic cylinder is protected and the structure size of the whole machine is reduced, and the self-locking hydraulic support mechanism is convenient to install on a cargo trailer and can directly replace the original manual mechanical support leg.

[0012] Secondly, because the self-locking hydraulic support mechanism is installed on a semitrailer for use, it is more convenient to control the opening and locking of the ratchet by using a pneumatic cylinder, the brake system of the semitrailer is gas braking, and the gas source of the pneumatic cylinder is from the gas cylinder carried on the vehicle.

[0013] The self-locking of the ratchet is completed by the reset torsion spring in the one-way pneumatic cylinder, in the inflation process, the pneumatic cylinder is retracted, the ratchet is opened, and as long as the gas is not cut off, the ratchet is always in the opened state. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The self-locking hydraulic support mechanism provided by the application has the following beneficial effects compared with the prior art: the hydraulic cylinder body is installed in the support body, so that the hydraulic cylinder is protected and the structure size of the whole machine is reduced, and the self-locking hydraulic support mechanism is convenient to install on a cargo trailer and can directly replace the original manual mechanical support leg.

[0015] Figure 2 A state one schematic view of the self-locking hydraulic supporting mechanism is provided in the utility model.

[0016] Figure 3 A state two schematic view of the self-locking hydraulic supporting mechanism is provided in the utility model.

[0017] Wherein: 1, cylinder body a;2, piston rod a;3, cylinder protection sleeve;4, piston rod protection sleeve;5, support foot plate;6, cylinder hinge seat;7, pin shaft;8, ear plate;9, rack;10, ratchet;11, ratchet protection sleeve;12, rotating shaft;13, cylinder protection sleeve;14, cylinder body b;15, piston rod b. Specific implementation

[0018] 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 scope of protection of the utility model.

[0019] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] The specific implementation of the utility model will be described in detail below in combination with the drawings, and the technical effects that can be achieved by the utility model will be further described.

[0022] As Figure 1As shown, the embodiment provides a self-locking hydraulic support mechanism, which comprises a trailer, a hydraulic cylinder and an anti-overturning structure, the trailer is equipped with an air reservoir and a vehicle battery, the hydraulic cylinder is connected to the vehicle battery, the hydraulic cylinder replaces the front side support leg of the trailer, the cylinder body a1 of the hydraulic cylinder is installed on the front side of the trailer, and the piston rod a2 of the hydraulic cylinder points to the ground; further comprising a cylinder body protection sleeve 3, a piston rod protection sleeve 4 and a support foot plate 5, the cylinder body protection sleeve 3 clamps and wraps the cylinder body a1, a cylinder body hinge seat 6 is arranged in the cylinder body protection sleeve 3, and the cylinder body a1 is hinged to the cylinder body hinge seat 6; the upper section of the cylinder body protection sleeve 3 is fixed to the trailer, the piston rod protection sleeve 4 clamps and wraps the piston rod a2, the upper end of the piston rod protection sleeve 4 is inserted between the cylinder body a1 and the cylinder body protection sleeve 3, and the lower end is connected to the outer end of the piston rod a2 through a pin shaft 7; one ear plate 8 is arranged at each end of the support foot plate 5, and the two ear plates 8 are respectively hinged to the two ends of the pin shaft 7;

[0023] The anti-overturning structure is arranged between the cylinder body a1 and the piston rod a2, and is used for preventing the piston rod a2 from retracting in the case of power failure and oil failure; specifically, the anti-overturning structure comprises a rack 9, a ratchet 10, a ratchet protection sleeve 11 and a reset torsion spring; the ratchet protection sleeve 11 is fixed to the outer wall of the cylinder body protection sleeve 3, the lower section of the rack 9 is installed on the outer wall of the piston rod protection sleeve 4, and the upper section extends into the ratchet protection sleeve 11; the ratchet 10 is fixed to the inner wall of the ratchet protection sleeve 11 through a rotating shaft 12, the reset torsion spring is sleeved on the rotating shaft 12, and the reset torsion spring acts on the ratchet 10 to abut the ratchet 10 against the rack 9;

[0024] In addition, a cylinder and a cylinder protection sleeve 13 are further included, the cylinder is connected to the air reservoir, the cylinder protection sleeve 13 is installed on the outer wall of the ratchet protection sleeve 11, the cylinder comprises a cylinder body b14 and a piston rod b15, the cylinder body b14 is installed on the cylinder protection sleeve 13, and the piston rod b15 is connected to the ratchet 10.

[0025] The working process and principle of the self-locking hydraulic support mechanism provided by the embodiment are as follows: please refer to Figure 2 and Figure 3, need to retract the main body support mechanism, that is, the piston rod a2 rises, off the ground contact, at this time due to the trailer is heavy, the pressure is applied to the rack 9 on the ratchet 10, ratchet 10 effectively prevent the piston rod a2 retraction, at this time need to control the hydraulic cylinder piston rod a2 extension, rack 9 out of the ratchet 10, that is, the electromagnetic reversing valve first open the main body support mechanism of the drop channel, so that the ratchet 10 out of the heavy pressure, push out the ratchet 10 while opening the cylinder, the piston rod b15 retraction, reset the torsion spring is compressed, the piston rod b15 driven ratchet 10 away from the rack 9, and then the electromagnetic reversing valve again open the main body support mechanism of the rising channel, the piston rod a2 get above the rise; need to sling, cut off the gas cylinder gas source, reset the torsion spring force ratchet 10 rotate and resist the rack 9, at this time the rack 9 can only be a downward extension action, the retraction action will be ratchet 10 stop, piston rod a2 with the rack 9 every extension tooth will be stuck in the rack 9 card mouth, so you can stop and lock; compared to the traditional support mechanism, the self-locking hydraulic support mechanism of the embodiment can be operated by wireless remote control as long as it is near the cab or the main body support, thereby completing the tractor hitch, off hitch work, greatly reducing the labor intensity, and significantly improving the work efficiency.

[0026] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A self-locking hydraulic support mechanism comprising a trailer equipped with an air reservoir and a battery, characterized by, It also includes a hydraulic cylinder and an anti-overturning structure; the hydraulic cylinder is connected with a vehicle-mounted battery, the hydraulic cylinder replaces a front side support leg of the trailer, a cylinder body a(1) of the hydraulic cylinder is installed on the trailer, and a piston rod a(2) of the hydraulic cylinder points to the ground; the anti-overturning structure is arranged between the cylinder body a(1) and the piston rod a(2), and is used for preventing the piston rod a(2) from being retracted in the case of power failure and oil failure.

2. The self-locking hydraulic support mechanism according to claim 1, wherein It also includes a cylinder body protection sleeve (3) and a piston rod protection sleeve (4), the cylinder body protection sleeve (3) clamps and wraps the cylinder body a(1), an upper section of the cylinder body protection sleeve (3) is fixed on the trailer, the piston rod protection sleeve (4) clamps and wraps the piston rod a(2), an upper end of the piston rod protection sleeve (4) is inserted between the cylinder body a(1) and the cylinder body protection sleeve (3), and a lower end of the piston rod protection sleeve (4) is connected to an outer end of the piston rod a(2) through a pin shaft (7).

3. The self-locking hydraulic support mechanism according to claim 2, wherein It also includes a support foot plate (5), one ear plate (8) is arranged at each end of the support foot plate (5), and the two ear plates (8) are respectively hinged to two ends of the pin shaft (7).

4. The self-locking hydraulic support mechanism according to claim 2, wherein The anti-overturning structure includes a rack (9), a ratchet (10), a ratchet protection sleeve (11) and a reset torsion spring; the ratchet protection sleeve (11) is fixed to an outer wall of the cylinder body protection sleeve (3), a lower section of the rack (9) is installed on an outer wall of the piston rod protection sleeve (4), an upper section of the rack (9) extends into the ratchet protection sleeve (11), the ratchet (10) is fixed to an inner wall of the ratchet protection sleeve (11) through a rotating shaft (12), the reset torsion spring is sleeved on the rotating shaft (12), and the reset torsion spring acts on the ratchet (10) to abut the ratchet (10) against the rack (9).

5. The self-locking hydraulic support mechanism according to claim 4, wherein It also includes a gas cylinder and a gas cylinder protection sleeve (13), the gas cylinder is connected with the gas storage cylinder, the gas cylinder protection sleeve (13) is installed on an outer wall of the ratchet protection sleeve (11), the gas cylinder includes a cylinder body b(14) and a piston rod b(15), the cylinder body b(14) is installed on the gas cylinder protection sleeve (13), and an end of the piston rod b(15) is connected with the ratchet (10).

6. The self-locking hydraulic support mechanism according to claim 2, wherein A cylinder body hinging seat (6) is arranged in the cylinder body protection sleeve (3), and the cylinder body a(1) is hinged to the cylinder body hinging seat (6).

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