CN2936968Y - The locking mechanism of the movable top cover of the open top box - Google Patents

Abstract

The utility model relates to a locking device for the movable top cover of the opening top box, comprising a lock hook, a supporting seat, and a crank connecting link device, wherein, the lock hook is fixed on the side of the movable top cover, the supporting seat is fixed on the upper end of the side wall of the opening top box and kept a fixed distance with the lock hook, and the crank connecting link device comprises a handle and a lock ring, one end of the handle is connected with the supporting seat through the first pin shaft fastened on the supporting seat and one end of the lock ring is connected with the handle through the second pin shaft fastened on the handle, the other end of the lock ring is detachably connected with the lock hook button. The locking device for the movable top cover on the opening top box of the utility model guarantees the separation and solid connection between the movable top cover and the box body of the opening top box through acting pressure between the box body and the top cover of the opening top box with low costs.

Description

The locking mechanism of the movable top cover of the open top box

technical field

The utility model relates to a locking mechanism, in particular to a locking mechanism for a movable top cover of an open-top box.

Background technique

With the development of the economy, the use of open top boxes is becoming more and more extensive. Usually, the open-top box is provided with a movable top cover that can be disassembled relative to the box body or hinged on one side, and the movable top cover and the box body are generally fastened by a lock bar or a latch. In the case of fastening the movable top cover and the box body with a lock rod, the cost is high; in the case of using a latch to fasten the movable top cover and the box body, since no pressure can be exerted between the movable top cover and the box body, the The movable top cover is easy to loosen from the box body during transportation, which may cause damage to the goods or cause inconvenience to transportation.

Utility model content

In view of the above-mentioned shortcomings, the purpose of this utility model is to provide a locking mechanism for the movable roof of the open-top box, which can fully secure the movable roof by applying pressure between the top cover and the box body of the open-top box. The separation and tight connection between the cover and the open top box body, and the cost is low.

In order to achieve the above object, the locking mechanism of the movable roof of the open top box according to the utility model includes: a lock hook, which is fixed to the side of the movable roof of the open top box; a support, which is fixed to the side of the open top box an upper end of the wall spaced at a fixed distance from the lock hook; and a crank linkage including a handle and a lock ring, one end of the handle being pivotally connected to the support by a first pin fixed to the support, And one end of the locking ring is pivotally connected to the handle through a second pin fixed on the handle, and the other end of the locking ring is detachably connected with the locking hook.

According to the locking mechanism of the movable top cover of the open top box of the utility model, there are respectively provided latch holes for spring pins to be inserted at the corresponding positions of the support and the handle, and the handle can be inserted into the latch holes The spring pin and the standoff are fixed to each other.

According to the locking mechanism of the movable top cover of the open top box of the utility model, the lock hook is a steel lock hook.

According to the locking mechanism of the movable roof of the open-top box of the present invention, the support is fixed at the intersection of the top beam and the wall plate at the upper end of the side wall of the open-top box.

According to the locking mechanism of the movable top cover of the open top box of the present invention, the locking hook is in the shape of "U".

The beneficial technical effect of the utility model is that, according to the locking mechanism of the movable top cover of the open top box of the utility model, pressure can be applied between the top cover and the box body of the open top box, thereby fully ensuring that the movable top cover and the open top box The separation and tight connection between the boxes, and the locking mechanism of the movable top cover of the open top box of the utility model are easy to manufacture, easy to operate, and low in cost.

Description of drawings

Fig. 1 is the front view of the locking mechanism of the movable roof of the open top box of the present invention.

Fig. 2 is the side view of the locking mechanism of the movable roof of the open top box of the present invention, wherein the handle represented by the solid line is a schematic diagram of the handle being in the B position (locked state), and the handle represented by the dotted line is the handle being in the A position Schematic diagram of the position (separated state).

FIG. 3 is an enlarged view of the spring pin in FIG. 2 .

Wherein, the reference signs are explained as follows:

1 lock hook 2 lock ring 3 handle 4 support 5 top cover

6 top beam 7 wall plate 10 spring pin 20 pin shaft 21 pin shaft

Detailed ways

Specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. Fig. 1 is the front view of the locking mechanism of the movable top cover of the open top box of the present utility model, and Fig. 2 is the side view of the locking mechanism of the movable top cover of the open top box of the present utility model, wherein the handle represented by the solid line It is a schematic diagram of the handle in position B (locked state), and the handle represented by a dotted line is a schematic diagram of the handle in position A (separated state). FIG. 3 is an enlarged view of the spring pin in FIG. 2 .

As shown in Figure 1 and Figure 2, according to the locking mechanism of the movable roof of the open top box of the present invention, it includes a lock hook 1, a lock ring 2, a handle 3, and a support 4, wherein the handle 3 and the support 4 constitute a Crank linkage. The connection and fixing relationship among the components will be described in detail below.

The locking hook 1 is fixed to the side of the movable top cover 5 of the open-top box by means of welding or screwing, and has an approximate "U" shape (as shown in Figure 2) or other shapes that can be fastened with the locking ring 2 , the locking hook 1 can be formed by pressing a steel rod. The support 4 can also be fixed to the upper end of the side wall of the open-top box by means of welding or screwing, for example, it is specifically located at the intersection of the top beam 6 and the wall plate 7 . The handle 3 is connected to the support 4 through a pin shaft 21 fixed on the support 4 , and can rotate around the pin shaft 21 . In addition, it is preferable that bolt holes can be respectively provided at the corresponding positions of the handle 3 and the support 4, and the bolt holes can have the same size, and when the locking mechanism is in the locked state, the two bolts The holes are aligned with each other so that a spring pin 10 as shown in FIG. One end of the lock ring 2 is connected to the handle 3 through a pin 20 fixed on the handle 3 , and can rotate around the pin 20 , so that the other end of the lock ring 2 is detachably connected with the lock hook 1 .

The operation of the locking mechanism of the movable roof of the open top box of the present invention will be described below with reference to FIG. 2 .

Firstly, the locking operation of the locking mechanism of the movable top cover of the open top box of the utility model will be described. As shown in Figure 2, when the spring pin 10 is not inserted into the pin hole, turn the handle 3 clockwise to make it in position A, then fasten the lock ring 2 with the lock hook 1, and then move Turn the handle 3 clockwise to make it in the B position. At this time, the lock ring 2 is in the state of fastening and locking with the lock hook 1, so as to realize the locking operation. At this time, the top cover 5 will be pressed tightly on the open top box on the roof beam 6. Afterwards, the spring pin 10 can also be inserted into the latch hole of the handle 3 and the support 4, so that the handle 3 and the support 4 are fixed together, thereby preventing the handle 3 from being loosened from the support 4 and causing the lock ring 2 to lock. The fastening and locking with the locking hook 1 is loosened, thereby ensuring that the top cover 5 is firmly fixed on the open top box.

Next, the separation operation of the locking mechanism of the movable top cover of the open top box of the present utility model will be described. Also as shown in Figure 2, the spring pin 10 is pulled out from the latch hole, and then the handle 3 is pulled clockwise to make it in position A, at this moment, the lock ring 2 and the lock hook 1 are separated from the fastened and locked position. State, so the lock ring 2 can be separated from the lock hook 1, so that the top cover 5 can be moved freely.

The number of locking mechanisms used for the movable roof of the open-top box is not limited, and can be determined according to the length of the open-top box, generally at a distance of 2000mm to 2500mm.

The locking mechanism of the movable top cover of the open top box of the utility model can fully ensure the separation and tight connection between the movable top cover and the box body of the open top box, and the locking mechanism of the movable top cover of the open top box of the utility model is made Easy, simple operation, low cost.

Claims (5)

1. A locking mechanism for a movable top cover of an open-top box, characterized in that the locking mechanism comprises: locking hook, which is fixed to the side of the removable top cover of the open top box; a support fixed to the upper end of the side wall of the open-top box at a fixed distance from the locking hook; and A crank linkage device comprising a handle and a lock ring, one end of the handle is pivotally connected to the support by a first pin fixed on the support, and one end of the lock ring is connected to the support by a first pin fixed on the handle Two pin shafts are pivotally connected to the handle, and the other end of the lock ring is detachably connected to the lock hook. 2. The locking mechanism of the movable top cover of the open-top box according to claim 1, characterized in that, the corresponding positions of the support and the handle are respectively provided with latch holes for inserting spring pins, and the handle is inserted into A spring pin into said pin hole and the seat are fixed to each other. 3. The locking mechanism of the movable roof of the open top box according to claim 1, wherein the lock hook is a steel lock hook. 4. The locking mechanism of the movable roof of the open-top box according to claim 1, wherein the support is fixed at the intersection of the top beam and the wall plate at the upper end of the side wall of the open-top box. 5. The locking mechanism of the movable roof of the open-top box according to claim 1, wherein the lock hook is in a "U" shape.

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