Connecting device for hooking and unhooking at end parts of tractor and trailer

Abstract

The utility model belongs to the technical field of tractor hook picking and hooking, and particularly relates to a connecting device for hook picking and hooking at the ends of a tractor and a trailer, a first connecting seat is fixedly welded on the tractor, a second connecting seat and a third connecting seat are fixedly welded at the ends of the trailer, a fixing rod is welded on the first connecting seat, and a second connecting seat is welded on the third connecting seat. A hook is hinged to the second connecting base, the tail end of the hook is hinged to one end of a connecting rod, the other end of the connecting rod is hinged to one end of a rocker, the middle of the rocker is hinged to the third connecting base, and the other end of the rocker is used for making contact with a front limiting rod or a rear limiting rod so as to drive the hook to act. The front limiting rod and the rear limiting rod are both fixed to a foundation, and the front limiting rod is a telescopic rod. According to the utility model, the rocking bar is limited and shifted by the front limiting rod and the rear limiting rod, so that the hook is taken off and hung, and the extrusion risk and the burn risk caused by manual pin inserting and pulling operation are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of tractor hook removal, and in particular relates to a connecting device for hook removal between a tractor and a trailer end. Background Art

[0002] In the metallurgical industry, it is often necessary to use a tractor to tow a trailer to transport high-temperature liquid metal. During the towing process, the tractor and trailer are usually unhooked by manual pin insertion or an electrical device.

[0003] Due to the movement of the tractor, it is difficult to manually align the pins with the holes. In addition, in a harsh working environment with splashing high-temperature metal liquid, the risk of operators being squeezed, injured, and burned is increased. Using electrical drives can easily damage electrical equipment due to the splashing of high-temperature metal liquid. Utility Model Content

[0004] In view of the above problems, the utility model provides a connection device for unhooking a hook at the end of a tractor and a trailer.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A connecting device for unhooking the ends of a tractor and a trailer, comprising a No. 1 connecting seat, a No. 2 connecting seat, a No. 3 connecting seat, a front limit rod and a rear limit rod, wherein the No. 1 connecting seat is fixedly welded to the tractor, the No. 2 connecting seat and the No. 3 connecting seat are fixedly welded to the end of the trailer, a fixing rod is welded to the No. 1 connecting seat, a hook is hinged to the No. 2 connecting seat, the end of the hook is hinged to one end of a connecting rod, the other end of the connecting rod is hinged to one end of a rocker, the middle part of the rocker is hinged to the No. 3 connecting seat, the other end of the rocker is used to contact the front limit rod or the rear limit rod, thereby driving the hook to move, the front limit rod and the rear limit rod are both fixed to a foundation, and the front limit rod is a telescopic rod.

[0007] Furthermore, the front limiting rod is an underground electric telescopic rod.

[0008] Furthermore, a shaft sleeve is provided on the fixing rod to reduce the wear of the fixing rod by the hook.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The utility model realizes the hooking and removing by limiting the rocker arm through the front limit rod and the rear limit rod, eliminating the risk of extrusion and burns caused by the manual insertion and removal of the pin. At the same time, the front limit rod adopts the method of an underground electric telescopic rod to avoid leakage of electrical appliances and damage by splashing of high-temperature metal liquid, reducing the maintenance rate and thus improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 This is a state diagram of the utility model when preparing to remove the hook;

[0013] Figure 3 A diagram showing the state of the hook when preparing for the present invention;

[0014] In the figure, there are No. 1 connecting seat 1, No. 2 connecting seat 2, No. 3 connecting seat 3, front limit rod 4, rear limit rod 5, fixing rod 6, hook 7, connecting rod 8, and rocker 9. DETAILED DESCRIPTION

[0015] In order to further illustrate the technical solution of the present invention, the present invention will be further described below through embodiments.

[0016] like Figures 1 to 3 As shown, a connecting device for unhooking the ends of a tractor and a trailer comprises a No. 1 connecting seat 1, a No. 2 connecting seat 2, a No. 3 connecting seat 3, a front limit rod 4 and a rear limit rod 5. The No. 1 connecting seat 1 is fixedly welded on the tractor, and the No. 2 connecting seat 2 and the No. 3 connecting seat 3 are fixedly welded to the end of the trailer. A fixing rod 6 is welded on the No. 1 connecting seat 1, and a shaft sleeve is sleeved on the fixing rod 6 to reduce the wear of the fixing rod 6 by the hook 7. A hook 7 is hinged on the No. 2 connecting seat 2, the end of the hook 7 is hinged to one end of the connecting rod 8, the other end of the connecting rod 8 is hinged to one end of the rocker 9, the middle part of the rocker 9 is hinged to the No. 3 connecting seat 3, and the other end of the rocker 9 is used to contact with the front limit rod 4 or the rear limit rod 5, thereby driving the hook 7 to move, and the front limit rod 4 and the rear limit rod 5 are both fixed on the foundation, and the front limit rod 4 is an underground electric telescopic rod.

[0017] During the working process, when it is necessary to hook, the front limit rod 4 is in a retracted state, and the tractor drives the No. 1 connecting seat 1 to move backward. During the reversing process, the tractor pushes the trailer to move backward synchronously through the contact between the No. 1 connecting seat 1 and the No. 2 connecting seat 2. After the rocker bar 9 touches the rear limit rod 5, while the tractor drives the trailer to move backward, the rocker bar 9 drives the hook 7 to move through the connecting rod 8, and finally completes the hooking work. Then the tractor can drive the trailer to move. When it is necessary to unhook, the initial state of the front limit rod 4 is a retracted state, and the tractor drives the trailer to reverse so that the rocker bar is located between the front limit rod 4 and the rear limit rod 5. Then, the front limit rod 4 is extended, and the tractor drives the trailer forward. After the rocker bar 9 touches the front limit rod 4, the tractor continues to drive the trailer forward, and the rocker bar 9 drives the hook 7 to move through the connecting rod 8, and finally completes the unhook work.

[0018] The above shows and describes the main features and advantages of the present invention. It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be encompassed within the present invention.

[0019] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A connecting device for unhooking the ends of a tractor and a trailer, characterized by: The invention comprises a No. 1 connecting seat (1), a No. 2 connecting seat (2), a No. 3 connecting seat (3), a front limiting rod (4) and a rear limiting rod (5); the No. 1 connecting seat (1) is fixedly welded on the tractor; the No. 2 connecting seat (2) and the No. 3 connecting seat (3) are fixedly welded on the end of the trailer; a fixing rod (6) is welded on the No. 1 connecting seat (1); a hook (7) is hinged on the No. 2 connecting seat (2); the end of the hook (7) is hinged to one end of a connecting rod (8); the other end of the connecting rod (8) is hinged to one end of a rocking rod (9); the middle part of the rocking rod (9) is hinged to the No. 3 connecting seat (3); the other end of the rocking rod (9) is used to contact the front limiting rod (4) or the rear limiting rod (5), thereby driving the hook (7) to move; the front limiting rod (4) and the rear limiting rod (5) are both fixed on the foundation; and the front limiting rod (4) is a telescopic rod.

2. A connecting device for unhooking a tractor and a trailer according to claim 1, characterized in that: The front limiting rod (4) is an underground electric telescopic rod.

3. The connecting device for unhooking a tractor and a trailer according to claim 1, characterized in that: A shaft sleeve is sleeved on the fixing rod (6) to reduce the wear of the fixing rod (6) caused by the hook (7).

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