Small hydraulic drive tight-lock coupler connector

Abstract

The utility model provides a small hydraulically-driven tight-lock coupler connector, which belongs to the technical field of special vehicle equipment, and comprises an upper coupler body, a lower coupler body, a coupler knuckle, an uncoupling rod and a gasket, the upper coupler body and the lower coupler body are of a symmetrical structure and are connected through a bolt, the coupler knuckle can freely rotate in a semicircular slideway formed by the upper coupler body and the lower coupler body, and the uncoupling rod is connected with the gasket. The uncoupling rod penetrates through an opening in the side face of the coupler, the uncoupling rod moves to drive the coupler knuckle to rotate, and the gasket is installed at the tail of the coupler. According to the utility model, automatic coupling and automatic / manual unlocking can be realized, and the coupler can bear larger longitudinal tension and compression load and certain transverse shear load, so that vehicle running gear modules are tightly connected.

Description

Technical Field

[0001] The utility model relates to the technical field of special vehicle equipment, in particular to a small hydraulically driven close-jointed vehicle coupler connector. Background Art

[0002] In order to tightly connect the front and rear running gear modules of special vehicles, the automatic coupler connection device of traditional locomotives is used. However, the coupler installed on traditional locomotives contains a buffer device, and the longitudinal dimension of the coupler is large, so it cannot be directly used for special vehicles with limited installation space. At the same time, the coupler on traditional locomotives is not only a mechanical structure, but also needs to be coupled with electrical connection and air circuit connection equipment. Therefore, the coupler used for rail vehicles is large in size and complex in structure, which is not suitable for special vehicles. Based on the above problems, it is urgent to design a coupler suitable for connecting the running gear modules of special vehicles. Utility Model Content

[0003] The utility model aims to provide a small hydraulically driven close-fitting coupler connector to solve at least one technical problem existing in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a small hydraulically driven close-fitting coupler connector, comprising: an upper hook body, a lower hook body, a hook tongue, an unhooking rod, a spring and a gasket. The coupler adopts a split design, the upper hook body and the lower hook body are symmetrical structures, and the upper and lower hook bodies are connected by bolts. The semicircular slides of the upper and lower hook bodies can realize the free rotation of the hook tongue, the unhooking rod passes through the opening on the side of the coupler for manual operation, and the hook tongue can rotate in the semicircular slide driven by the unhooking rod. One end of the spring is connected to the unhooking rod, and the other end is connected to the lower hook body. Under the action of the spring, the unhooking rod and the hook tongue are in a locked position. Along the longitudinal center plane of the coupler, there are convex cones and concave cones on the left and right sides of the hook body respectively. The cone plays a guiding role in the connection process, and the gasket is installed at the tail of the coupler.

[0006] Optionally, the hydraulic cylinder is mounted on a mounting seat in the lower hook body and fixed by bolts, and an oil pipe connected to the hydraulic cylinder passes through an opening on the side of the coupler and is connected to an external electromagnetic reversing valve. When the hydraulic cylinder is working, the piston rod of the hydraulic cylinder moves forward to push the unhooking rod, so that the hook tongue rotates to the unhooking position, thereby realizing automatic unhooking of the coupler;

[0007] Optionally, the cross-sectional shape of the hook tongue is semi-elliptical, and the hook tongue can achieve self-locking when rotating in the semicircular slideway. The upper and lower surfaces of one end of the hook tongue have symmetrical 30° fan-shaped areas that are recessed downward, and the hook tongue is connected to the unhooking rod through a hook tongue pin.

[0008] Beneficial effects of the utility model:

[0009] The embodiment of the utility model provides a small hydraulically driven close-fitting coupler connector. Compared with the existing coupler devices for locomotives and vehicles, it has no buffer, small size and simple structure. The coupler body adopts a split design to ensure high strength and high precision. A hydraulic cylinder is installed in the lower hook body to achieve automatic unhooking. Compared with the traditional pneumatic transmission, the hydraulic transmission has a greater force and is more stable. Under the same power conditions, the hydraulic transmission device is small in size, light in weight and compact in structure. Hydraulic components can be connected by pipes, and their layout and installation have great flexibility, and can form a complex system that is difficult to compose with other transmission methods. The utility model has a simple and novel structure, good reliability, and strong load-bearing capacity. It can be used for special vehicles with limited installation space, so that the front and rear running gear modules are tightly connected, which can ensure the safety of vehicle operation.

[0010] Additional advantages of the present invention will be more clearly presented in the following description or learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a three-dimensional structural diagram of the small close-jointed coupler described in an embodiment of the utility model.

[0013] Figure 2 It is a front view of the small close-fitting coupler described in an embodiment of the utility model.

[0014] Figure 3 This is an assembly diagram of the lower hook body of the small close-fitting coupler described in an embodiment of the utility model.

[0015] Figure 4 It is a top view of the hook tongue of the small close-fitting coupler described in an embodiment of the utility model.

[0016] Figure 5 The present invention is an assembly diagram of a hook tongue, a hook tongue pin and a hook release rod of a small close-jointed coupler according to an embodiment of the present utility model.

[0017] Figure 6 This is a diagram of the small close-fitting coupler in the ready-to-hook state described in an embodiment of the utility model.

[0018] Figure 7 This is a diagram of the locked state of the small close-fitting coupler described in an embodiment of the utility model.

[0019] Figure 8This is a diagram of the unhooking state of the small close-fitting coupler described in an embodiment of the utility model.

[0020] Among them: 1. upper hook body; 2. lower hook body; 3. hook tongue; 4. unhooking rod; 5. hook tongue pin; 6. spring; 7. hydraulic cylinder; 8. gasket; 9. convex cone; 10. concave cone. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below by the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0022] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which the present invention belongs.

[0023] It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have a meaning consistent with that in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless as defined herein.

[0024] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements and / or groups thereof.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0026] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the description of this specification, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present technology and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present technology.

[0028] Unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in this technology can be understood according to specific circumstances.

[0029] To facilitate the understanding of the present invention, the present invention is further explained below with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute a limitation on the embodiments of the present invention.

[0030] Those skilled in the art should understand that the drawings are merely schematic diagrams of embodiments, and the components in the drawings are not necessarily necessary for implementing the present invention.

[0031] The utility model provides a small close-fitting coupler (a small hydraulically driven close-fitting coupler connector), including: an upper hook body, a lower hook body, a hook tongue, an unhooking rod, a hook tongue pin, a spring, a hydraulic cylinder and a gasket. The coupler body plays the role of transmitting longitudinal force, and is also the carrier of other parts on the coupler. The upper and lower hook bodies are symmetrical structures. The embodiment of the utility model provides a small close-fitting coupler with a novel structure, which can be automatically connected and automatically / manually unlocked. The coupler can withstand large longitudinal tensile and compressive loads and certain lateral shear loads, so that the vehicle running gear module is tightly connected.

[0032] like Figure 1 and Figure 2As shown, in a specific embodiment, a small close-fitting coupler (small hydraulically driven close-fitting coupler connector) is provided, including: an upper hook body 1, a lower hook body 2, a hook tongue 3, an unhooking rod 4, a spring 6 and a gasket 8. The coupler adopts a split design, the upper hook body 1 and the lower hook body 2 are symmetrical structures, connected by bolts, and other parts are carried on the hook body. The semicircular slideways of the upper and lower hook bodies can realize the free sliding of the hook tongue 3. The unhooking rod 4 passes through the opening on the side of the coupler for manual operation. The movement of the unhooking rod 4 drives the rotation of the hook tongue 3. One end of the spring 6 is connected to the unhooking rod 4, and the other end is connected to the lower hook body 2. Under the action of the spring 6, the unhooking rod 4 and the hook tongue 3 are in a locked position. Along the longitudinal center plane of the coupler, there are convex cones 9 and concave cones 10 on the left and right sides of the coupler, respectively, which play a guiding role in the coupling process. The gasket 8 is installed at the rear of the coupler.

[0033] like Figure 1 and Figure 3 As shown, the hydraulic cylinder 7 is installed on the mounting seat in the lower hook body 2 and fixed by bolts. The oil pipe connected to the hydraulic cylinder 7 passes through the opening on the side of the coupler and is connected to the external electromagnetic reversing valve. When the hydraulic cylinder 7 is working, the piston rod of the hydraulic cylinder 7 moves forward to push the unhooking rod 4, so that the hook tongue 3 rotates to the unhooking position, thereby realizing automatic unhooking of the coupler.

[0034] like Figure 4 and Figure 5 As shown, the cross-sectional shape of the hook tongue 3 is an ellipse, and the hook tongue 3 can achieve self-locking when rotating in the semicircular slideway. The upper and lower surfaces of one end of the hook tongue have symmetrical 30° fan-shaped areas that are recessed downward, and the hook tongue 3 is connected to the unhooking rod 4 through a hook tongue pin 5.

[0035] In this embodiment, the small close-connected coupler has three working states, namely, a waiting state, a locked state and an unhooked state.

[0036] like Figure 6 The figure shows the ready-to-hook state of the hook, where the unhooking rod 4 is pulled by the spring 6 to the ready-to-hook position. When the convex cone 9 contacts the hook tongue plane, the hook tongue 3 rotates counterclockwise until the hook tongue plane coincides with the longitudinal center plane of the hook body, and the hydraulic cylinder does not move during this process.

[0037] like Figure 7 The figure shows the locked state of the hook. When the two hooks are connected, the convex cone 9 is inserted into the corresponding concave cone 10 of the other party. At this time, the inner side of the convex cone 9 presses the hook tongue 3 of the other party to rotate while advancing, so that the spring 6 is stretched and the hook tongue 3 rotates 30° counterclockwise. When the connecting surfaces of the two hooks are in contact, the inner side of the convex cone 9 no longer presses the hook tongue 3 of the other party. At this time, due to the action of the spring 6, the hook tongue 3 rotates clockwise to return to its original position, that is, it is in the locked state.

[0038] like Figure 8The figure shows the unhooking state of the coupler. There are two ways to unhook. The first method is to use a hydraulic cylinder to unhook, and the second method is to manually pull the unhooking rod to unhook. In general, to separate the two hooks, the electromagnetic reversing valve is used to operate the hydraulic cylinder 7, and the piston rod pushes the unhooking rod 4 forward to rotate the hook tongue 3 30° counterclockwise to the unhooking position. The hydraulic cylinder maintains pressure to keep the hook tongue in this position, and the two hooks can be separated at this time; when manually operated, the unhooking rod 4 is pulled counterclockwise to rotate 30°, and the coupler can also reach the unhooking position.

[0039] In summary, compared with the existing hook buffer device for rail vehicles, the small close-fitting coupler described in the embodiment of the utility model has no buffer, small size, simple structure, and the coupler body adopts a split design to ensure high strength and high precision. In addition, a hydraulic cylinder is installed in the lower hook body to realize automatic unhooking. Compared with the traditional pneumatic transmission, the hydraulic transmission has a greater force and is more stable. Under the same power conditions, the hydraulic transmission device is small in size, light in weight, and compact in structure. The coupler can be automatically connected and automatically / manually unlocked, can withstand large longitudinal tensile and compressive loads and certain lateral shear loads, so that the vehicle running gear module is tightly connected, and has the characteristics of simple structure, good reliability, and strong load-bearing capacity.

[0040] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution disclosed in the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work should be included in the scope of protection of the utility model.

Claims

1. A small hydraulically driven close-fitting coupler connector, characterized in that: include: The invention relates to an upper hook body (1), a lower hook body (2), a hook tongue (3), an unhooking rod (4) and a gasket (8). The hook body of the vehicle coupler is designed as a split type. The upper hook body (1) and the lower hook body (2) are symmetrical structures. The upper hook body (1) and the lower hook body (2) are connected by bolts. The hook tongue (3) can rotate freely in a semicircular slideway formed by the upper hook body (1) and the lower hook body (2). The unhooking rod (4) passes through an opening on the side of the vehicle coupler. The movement of the unhooking rod (4) drives the hook tongue (3) to rotate. The gasket (8) is installed at the rear of the vehicle coupler.

2. The small hydraulically driven close-fitting coupler connector according to claim 1, characterized in that: The hydraulic cylinder (7) is mounted on a mounting seat of the lower hook body (2) and fixed by bolts. When the piston rod of the hydraulic cylinder (7) moves forward, it pushes the unhooking rod (4) to rotate the hook tongue (3) to an unhooking position. The hydraulic oil pipe connects the hydraulic cylinder in the hook body and the external electromagnetic reversing valve through an opening on the side of the coupler.

3. The small hydraulically driven close-fitting coupler connector according to claim 1, characterized in that: The cross-sectional shape of the hook tongue (3) is a semi-ellipse. The hook tongue (3) can achieve self-locking when rotating in a semicircular slideway. The upper and lower surfaces of one end of the hook tongue have symmetrical 30° fan-shaped areas that are recessed downwards. The hook tongue (3) is connected to the unhooking rod (4) through a hook tongue pin (5).

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