CN210149092U - a front tractor - Google Patents

Abstract

The utility model discloses a front retractor, which comprises a towing arm, a fixing plate, a supporting seat and a gas spring. The lower end of the fixing plate is connected to the supporting seat at the front side, the supporting seat is provided with a rotating shaft, the end of the pulling arm is connected to the rotating shaft, and one end of the gas spring is connected to the rotating shaft. It is hinged with the end of the traction arm, and the other end is hinged with the upper end of the fixing plate. The utility model has a simple structure. When the traction arm is put down, it is only necessary to step on the traction arm and connect the traction arm with the front tractor or trolley by means of the force of the gas spring, and the arrangement of the bumps can play a buffer role When the towing arm is erected, when the worker releases the connection between the towing arm and the tractor or trolley at the front end, under the force of the gas spring, the towing arm will automatically and slowly bounce up, eliminating the need for manual operation. The trouble of lifting reduces the labor intensity.

Description

a front tractor

technical field

The utility model belongs to the technical field of retractors, in particular to a front retractor.

Background technique

With the development of science and technology and the emergence of assembly lines, it is no longer realistic to rely on people for distribution. With the emergence of tractors, efficient distribution fully meets the production of fast and efficient assembly lines. In order to maximize the use of resources, the tractor drives every time. The number of trolleys is increasing. At this time, a tractor appears. The tractor is a tool for connecting two trolleys. The tractor includes a front tractor and a rear tractor. The utility model patent with the authorization announcement number CN208558904U discloses a front retractor, which includes a left mounting plate, a right mounting plate, a traction arm, a left pin, a right pin, a pedal shaft, a pedal and a torsion spring; A pair of traction arm left support plates are arranged on the upper part of the board surface, the left pin shaft passes through the left support plate of the traction arm, and the left leg of the traction arm is sleeved on the left pin shaft; a pair of traction arm right supports are arranged on the upper part of the front surface of the right mounting plate The lower part of the front surface of the right mounting plate is provided with a pedal support plate, the right pin shaft passes through the right support plate of the traction arm, the right foot of the traction arm is sleeved on the right pin shaft, the pedal shaft is installed on the pedal support plate, and one end of the pedal The torsion spring and the torsion spring are sleeved on the pedal shaft, one end of the torsion spring is connected to the pedal support plate, the other end of the torsion spring is pre-pressed on the bottom of the pedal, and the bottom of the right leg of the traction arm is set close to the front side. A card block that can be snapped onto the card slot. Using the front retractor is lighter, labor-saving and more convenient to operate. The utility model has certain defects in the actual application process: 1. The structure is complicated, the operation is troublesome, and the production cost is high; 2. Although the torsion spring is provided, when the traction arm is put down or erected, it still needs to be larger labor intensity.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the background technology, the utility model provides a front retractor with simple structure, convenient operation and labor saving.

For achieving the above purpose, the technical solution of the present utility model is as follows:

A front tractor, comprising a tractor arm, is characterized in that it further comprises a fixed plate, a support seat and a gas spring, the lower end of the fixed plate is connected to a support seat on the front side, a rotating shaft is installed on the support seat, and the end of the towing arm is connected to the rotating shaft, One end of the gas spring is hinged with the end of the traction arm, and the other end is hinged with the upper end of the fixing plate.

Preferably, the support base is provided with a protrusion, and the protrusion is located on the front side of the rotating shaft.

Preferably, the vertical section of the support base is U-shaped.

Preferably, the bump is an elastic piece.

Preferably, the material of the bump is polyurethane.

Preferably, the lower end of the protruding block is connected with a screw rod, and the screw rod is threadedly connected with a threaded hole provided on the support base.

With respect to the prior art, the beneficial effects of the present utility model are as follows:

The utility model has a simple structure. When the traction arm is put down, it is only necessary to step on the traction arm and connect the traction arm to the front tractor or trolley with the help of the force of the gas spring. When the towing arm is erected, when the worker releases the connection between the towing arm and the tractor or trolley at the front end, under the force of the gas spring, the towing arm will automatically and slowly bounce up, eliminating the need for manual operation. The trouble of lifting reduces the labor intensity.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the side view structure schematic diagram of the utility model;

3 is a schematic structural diagram of the utility model after removing the traction arm;

In the picture: 1. Towing arm, 2. Fixed plate, 3. Support seat, 4. Gas spring, 5. Rotating shaft, 6. Bump, 7. Screw.

Detailed ways

In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to the specific embodiments.

In the description of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" , "top", "bottom", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, rather than indicating or It is implied that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in Figures 1 to 3, a front retractor includes a traction arm 1, a fixed plate 2, a support base 3 and a gas spring 4, the front side of the lower end of the fixed plate is connected to the support base, and a rotating shaft 5 is installed on the support base, The end of the pulling arm is connected to the rotating shaft, and the pulling arm can rotate freely on the support seat along the rotating shaft. One end of the gas spring is hinged with the end of the pulling arm, and the other end is hinged with the upper end of the fixed plate. On the front side, when the traction arm is put down, the lower surface of the traction arm is in contact with the upper surface of the bump. The bump is an elastic part, and the material is polyurethane. Polyurethane has high mechanical strength, oxidation stability, resilience, oil resistance, Solvent resistance and fire resistance, on the one hand, the bumps can play a buffer role, reduce the wear between components and prolong the service life; After that, the towing arm can just be connected with the front tractor or trolley. The lower end of the bump is connected with a screw 7, and the screw is threadedly connected with the threaded hole set on the support seat. According to the actual situation, the height of the bump can be adjusted freely through the screw. .

The working principle of the present utility model is as follows:

As shown in Figure 1 to Figure 3, when in use, the fixing plate 2 is welded to the front end of the towed trolley. When the trolley needs to be connected to the tractor located at the front end, the staff steps on the towing arm, and with the help of the gas spring 4, the pulling arm 1 is slowly deflected and pressed down. When it is in contact with the bump 6, it can be connected with the tractor or trolley at the front end; after use, the pulling arm 1 needs to be erected. , the staff releases the connection between the traction arm 1 and the tractor or trolley at the front end, and the traction arm is automatically deflected and erected slowly under the action of the gas spring 4, which saves the trouble of manually lifting the traction arm 1. The operation is simple and reduces the Labor intensity.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and does not deviate from the present invention. The present invention can be implemented in other specific forms under the condition of the spirit or basic features. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention.

Claims (6)

1. A front retractor, comprising a towing arm, characterized in that: it also includes a fixed plate, a support seat and a gas spring, the front side of the lower end of the fixed plate is connected to a support seat, a rotating shaft is installed on the support seat, and the end of the tow arm is connected A rotating shaft, one end of the gas spring is hinged with the end of the traction arm, and the other end is hinged with the upper end of the fixing plate. 2 . The front retractor according to claim 1 , wherein the support seat is provided with a projection, and the projection is located on the front side of the rotating shaft. 3 . 3 . The front retractor according to claim 1 , wherein the vertical section of the support seat is U-shaped. 4 . 4 . The front retractor according to claim 2 , wherein the protrusion is an elastic piece. 5 . 5 . The front retractor according to claim 4 , wherein the material of the bump is polyurethane. 6 . 6 . The front retractor according to claim 2 , wherein a screw rod is connected to the lower end of the protruding block, and the screw rod is threadedly connected to a threaded hole provided on the support base. 7 .

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