KR-102961839-B1 - Hydraulic device for a wing-body truck cargo compartmen

Abstract

The present invention provides a hydraulic device for driving a wing gate of a wing body truck, wherein a lower frame is formed by a center member arranged along the longitudinal direction of the truck on the bottom surface of the wing body of the wing body and a plurality of cross members arranged at a predetermined interval perpendicular to the longitudinal direction of the center member; wherein a metal hydraulic pipe is detachably connected to the bottom surface of the cross members by means of a coupling member, one middle end of the metal hydraulic pipe is connected to a hydraulic generating device and a hydraulic hose by means of a connector, and both ends of the metal hydraulic pipe are connected to hydraulic hoses connected to hydraulic cylinders. The effects of the present invention include minimizing damage by replacing the portion of the hydraulic line for driving the wing gate of the wing body passing through the bottom surface of the wing body's lower frame, which is frequently damaged, with a metal hydraulic pipe, and preventing sagging by supporting the hydraulic hose between the hydraulic generating device and the hydraulic pipe, which is inevitably subject to sagging, through a through hole formed in the center member forming the lower frame. This is a very useful invention that prevents damage and minimizes damage by covering it with a center member, and also allows the cause of the leak to be quickly identified and the leaking hydraulic hose to be easily replaced as the length of the hydraulic hose between the hydraulic pipe and the wing body hydraulic cylinder is shortened.

Inventors

• 문용복
• 정길래

Assignees

• 주식회사 이노특장

Dates

Publication Date

20260507

Application Date

20250523

Claims (2)

1. A hydraulic device for driving a wing gate of a wing body truck, comprising: a lower frame formed by a center member arranged along the longitudinal direction of the truck on the bottom surface of the wing body of the wing body and a plurality of cross members arranged at a predetermined interval perpendicular to the longitudinal direction of the center member; wherein hydraulic pressure generated from a hydraulic generator installed on one side of the lower frame is supplied to a hydraulic cylinder for driving the wing. The hydraulic pressure generated from the above hydraulic generating device is supplied to the hydraulic cylinder through the hydraulic pipe, The above hydraulic pipe is made of a pipe-shaped metal material, and A pair of each is attached to the bottom surface of the cross member by means of a connecting member, spaced apart from each other on both sides of the center member, so as to be detachably attached, and is installed along the longitudinal direction of the truck from one end to the other of the wing body. A hydraulic device for driving a wing gate of a wing body truck, characterized in that a plurality of through holes are drilled in the middle part of the center member, so that the hydraulic hose of a hydraulic generator passes through the through holes and is connected to each hydraulic pipe arranged on both sides of the center member.
2. delete

Description

Hydraulic device for driving the wing gate of a wing-body truck The present invention relates to a hydraulic device for driving a wing gate of a wing body truck, and more specifically, to a hydraulic device for driving a wing gate of a wing body truck that minimizes damage to the hydraulic line and allows the cause of leakage in the hydraulic line to be quickly identified and the corresponding hydraulic hose to be replaced as soon as possible when transmitting high-pressure hydraulic fluid obtained from a hydraulic generator to a hydraulic cylinder in constructing a hydraulic device for driving the wing of the wing body of a wing body truck. Generally, cargo trucks are a means of transporting goods, and most are equipped with cargo beds capable of carrying a large amount of cargo. Since the upper part of the cargo bed of conventional trucks is open, it is difficult to protect cargo from bad weather and it is also difficult to store and transport cargo. Therefore, a wing body truck has been developed and is being used to cover the cargo bed with a cover, namely a wing gate, and to open and close the wing gate by means of a hydraulic cylinder, thereby enabling safe storage and convenient transport of cargo. As shown in FIGS. 1 to 3, the structure of such a wing body truck is constructed by erecting a front supporter (3) and a rear supporter (5) with an opening/closing door (4) installed at the front and rear of the floor frame (2) of the cargo box, respectively, and installing a center beam (6) at the upper center thereof. Wing gates (8) that are opened and closed by the operation of hydraulic cylinders (7) fixed to the front/rear supporters (3) (5) are installed on the left and right sides of the center beam (6). Since the hydraulic cylinders (7) require high hydraulic pressure, a hydraulic generating device (9) is installed on the lower side of the floor frame (2) and equipped with an oil tank (10), a hydraulic pump (11), and a solenoid valve (12) for distributing hydraulic pressure to each hydraulic cylinder (7). The solenoid valve (12) and the hydraulic cylinder (7) are connected by a hydraulic line (13), that is, a hydraulic hose, to supply hydraulic pressure. At this time, each wing gate (8) is opened and closed by two hydraulic cylinders (7). In order to open and close each wing gate (8) individually, hydraulic pressure is supplied from a hydraulic device (9) using a hydraulic line (13). The above hydraulic line is connected in a structure exposed to the underside and side of the truck, and the existing hydraulic line has the disadvantage of being easily damaged due to external force or aging, as it uses a hydraulic hose made of rubber or synthetic resin material. Due to the structure of hydraulic hoses, which are easily damaged, even if hydraulic fluid leaks due to a tear or hole in an inconspicuous area, it is difficult to locate the source of the damage as the fluid flows through the hose. Consequently, all of these hydraulic hoses must be disconnected and leak tests performed one by one, which is a disadvantage. Such leak tests require a large amount of work and take a long time, leading to a serious economic burden in which massive losses must be taken into account due to the inability to utilize trucks. [Prior Art Literature] 1. Republic of Korea Registered Utility Model No. 20-0373441 FIG. 1 is a side view of a conventional wing body truck. FIG. 2 is a cross-sectional view of the wing body of a conventional wing body truck. FIG. 3 is a hydraulic system diagram for driving the wing gate of a conventional wing body truck. FIG. 4 is a perspective view of a hydraulic device for driving a wing gate of a wing body truck according to an embodiment of the present invention. Fig. 5 is a bottom view of Fig. 4. FIG. 6 is a hydraulic system diagram of a hydraulic device for driving a wing gate of a wing body truck according to the present invention. Embodiments of the present invention are described below in detail to enable those skilled in the art to easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Technical terms used herein are intended merely to refer to specific embodiments and are not intended to limit the invention. Furthermore, singular forms used herein include plural forms unless the phrases clearly indicate otherwise. The meaning of "comprising" as used in the specification specifies a particular characteristic, area, integer, step, operation, element, and/or component, and does not exclude the existence or addition of other particular characteristics, areas, integers, steps, operations, elements, components, and/or groups. Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the present invention belongs. Terms defined in commonly used dictionaries are further interp