Two-way push-pull hook and trolley

Abstract

A bidirectional push-pull hook and trolley address the problem of push-pull hooks requiring high dimensional accuracy, which can fail to meet these requirements after wear or damage. The hook comprises a push portion and a pull portion, which are fixedly connected. A box is fixed to the side of the push portion away from the pull portion, within which a counterweight is placed. A blocking portion is provided within the box, which allows the counterweight to swing upward to a certain angle before sliding toward the pull portion.

Description

Technical Field

[0001] The present invention relates to the technical field of material transfer in a furnace, and in particular to a bidirectional push-pull hook and a trolley. Background Art

[0002] In a multi-furnace production line, a push-pull cart is used to transport workpieces between different equipment. When the cart moves to the corresponding equipment, the push-pull hook moves the material tray into or out of the equipment. After the tray is moved, the cart moves on the track to the next step.

[0003] The application number is 201821046925.X, and the name is a two-way push-pull vehicle, which includes a walking part, a working part and a push-pull hook assembly. The working part is rotatably connected to the walking part, and the push-pull hook can only move in one direction.

[0004] The application number is 201911116918.1, and the name is a bidirectional push-pull cart for a push rod furnace, which includes a frame, a left push sprocket, a right push sprocket, a left push-pull hook head and a right push-pull hook head. During the pushing and pulling process, the hook head relies on its own center of gravity position to shift, thereby realizing the downward swing of the hook head. At that time, this would require relatively high processing dimensions of the hook head. During long-term use, the hook head will be damaged or worn, and the center of gravity will shift at this time, and it will no longer be able to meet the work needs well. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a bidirectional push-pull hook and a trolley, which effectively solves the problem that the push-pull hook has high requirements for dimensional accuracy and cannot meet the requirements well after wear or damage.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a two-way push-pull hook, including a pushing part and a pulling part, the pushing part and the pulling part are fixedly connected, a box body is fixed on the side of the pushing part away from the pulling part, a counterweight part is placed in the box body, and a blocking part is provided in the box body, and the blocking part is a structure that allows the counterweight part to swing upward to a certain angle and then slide toward the side close to the pulling part.

[0007] Preferably, the pushing portion includes a support plate, and an inclined pushing plate is fixed on the side of the support plate away from the pulling portion.

[0008] Preferably, the pulling portion includes a vertical plate fixedly connected to the support plate, a swing head is fixed on the vertical plate away from the push plate, the swing head is a conical structure, and the side of the swing head away from the vertical plate is a small end surface.

[0009] Preferably, the counterweight is a large sphere placed in the box.

[0010] Preferably, the blocking portion is a bolt threadedly connected to the box body, the upper end of the bolt is placed in the box body, and the lower end of the bolt is placed below the box body.

[0011] A two-way push-pull trolley comprises a two-way push-pull hook, a frame, a left push-pull sprocket and a right push-pull sprocket. A walking unit is arranged at the lower end of the frame.

[0012] Compared with the prior art, the present invention has the following advantages: 1) The setting of the counterweight part reduces the processing accuracy of the push-pull hook, and at the same time, the equipment can still be used normally when it is worn; 2) The height of the blocking part is limited, so that the automatic counterweight part can swing to any position. Only when it swings to a certain angle will the counterweight part slide and will not return to its original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the bidirectional push-pull hook of the present invention;

[0014] Figure 2 This is a schematic diagram of the shaft side structure of the bidirectional push-pull hook of the present invention (the box body is partially cut away);

[0015] In the figure: 1. Box body; 2. Counterweight part; 3. Blocking part; 4. Support plate; 5. Push plate; 6. Vertical plate; 7. Swing head. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.

[0017] Please refer to Figure 1-2 The technical solution of the present invention is: a two-way push-pull hook, including a pushing part and a pulling part, the pushing part and the pulling part are fixedly connected, a box body 1 is fixed on the side of the pushing part away from the pulling part, a counterweight part 2 is placed in the box body 1, and a blocking part 3 is provided in the box body 1, and the blocking part 3 is a structure that allows the counterweight part 2 to swing upward to a certain angle and then slide toward the side close to the pulling part.

[0018] In the present invention, we innovatively set up a counterweight part 2, which can slide in the box body 1. When pushing, the pushing part moves along the pushing direction. At this time, the box body 1 is in a horizontal state. At this time, the counterweight part 2 is limited by the blocking part 3 and stops at the outermost side of the box body 1. The device can be pushed normally.

[0019] When the material needs to be pulled, the pulling part moves toward the material. When it moves to the bottom of the material, the pulling part swings downward. At this time, the box body 1 swings along with it, and the side of the box body 1 away from the pulling part is tilted upward. When the angle is reached, the blocking part 3 cannot prevent the counterweight part 2 from continuing to remain stationary, and the counterweight part 2 slides toward the side of the pulling part, so that the push-pull part maintains a downward swinging state, and then its pulling effect can be achieved.

[0020] The pushing portion includes a support plate 4 , and an inclined push plate 5 is fixed to the side of the support plate 4 away from the pulling portion.

[0021] The pulling portion includes a vertical plate 6 fixedly connected to the support plate 4. A swing head 7 is fixed to the vertical plate 6 away from the push plate 5. The swing head 7 is a conical structure, and the side of the swing head 7 away from the vertical plate 6 is a small end surface.

[0022] We do not make any improvements to the pushing and pulling parts, and just use the existing technology.

[0023] The counterweight part 2 is a large sphere placed in the box 1 .

[0024] In this device, the counterweight part 2 adopts a ball, which avoids the counterweight part 2 from interfering with the box body 1 and causing the counterweight part 2 to get stuck and unable to slide.

[0025] The blocking portion 3 is a bolt threadedly connected to the box body 1 , with the upper end of the bolt placed inside the box body 1 and the lower end of the bolt placed below the box body 1 .

[0026] The bolt method is used. First, it is convenient to adjust the height of the bolts placed in the box body 1, because we need to find a height at which the counterweight part 2 begins to slide after the pulling part swings to a certain angle; second, as the use increases, the bolts will wear out. At this time, we need to adjust the position of the bolts so that the height of the bolts placed in the box body 1 can still meet the working requirements.

[0027] A bidirectional push-pull trolley comprises the bidirectional push-pull hook according to any one of claims 1 to 5, and further comprises a frame, a left push-pull sprocket and a right push-pull sprocket, wherein a walking unit is provided at the lower end of the frame.

[0028] By setting the walking unit, the trolley can move and slide. In addition, the left push sprocket and the right push-pull sprocket still use the structure of application number 201911116918.1, named a two-way push-pull trolley for a push rod furnace. In addition, the operation of the entire trolley still follows the working principle of application number 201911116918.1, named a two-way push-pull trolley for a push rod furnace. The difference is that we have improved the push-pull hook head and added a walking unit so that the equipment can move to the working position.

[0029] In addition, we can also set up a platform with adjustable height inside the frame, so as to adjust the growth progress of the storage chain, etc.

[0030] The examples are provided for illustrative purposes only and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. Obvious variations or modifications arising therefrom remain within the scope of the present invention.

Claims

1. A two-way push-pull hook, comprising a push portion and a pull portion, wherein the push portion and the pull portion are fixedly connected, characterized in that: The pushing portion is fixed with a box body (1) on the side away from the pulling portion, a counterweight portion (2) is placed in the box body (1), and a blocking portion (3) is provided in the box body (1), and the blocking portion (3) is a structure that enables the counterweight portion (2) to swing upward to a certain angle and then slide toward the pulling portion. The pushing portion comprises a support plate (4), and an inclined pushing plate (5) is fixed on the side of the support plate (4) away from the pulling portion; The pulling portion includes a vertical plate (6) fixedly connected to the support plate (4); a swing head (7) is fixed on the side of the vertical plate (6) away from the push plate (5); the swing head (7) is a conical structure, and the side of the swing head (7) away from the vertical plate (6) is a small end face; The counterweight part (2) is a large sphere, and the large sphere is placed in the box (1); The blocking portion (3) is a bolt threadedly connected to the box body (1), the upper end of the bolt is placed inside the box body (1), and the lower end of the bolt is placed below the box body (1).

2. A two-way push-pull trolley, characterized in that: It comprises the bidirectional push-pull hook according to claim 1, and further comprises a frame, a left push-pull sprocket and a right push-pull sprocket, and a walking unit is provided at the lower end of the frame.

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