CN218717932U

CN218717932U - Constant-force releasing device for goods

Info

Publication number: CN218717932U
Application number: CN202123422105.0U
Authority: CN
Inventors: 张恒铭; 王金升; 周涛; 何蕾
Original assignee: AVIC First Aircraft Institute
Current assignee: AVIC First Aircraft Institute
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-03-24
Anticipated expiration: 2031-12-31

Abstract

The application provides a goods constant force release device includes: the mounting seat is arranged on the track and provided with a rectangular through hole extending along the direction vertical to the goods, and a larger round hole and a smaller round hole which penetrate through the rectangular through hole are formed in the mounting seat; the locking block with a bent main body part is arranged in the rectangular through hole; the pin shaft penetrates through a larger round hole of the mounting seat and a bending point of the locking block, so that the locking block can rotate around the axis of the pin shaft; the shear pin penetrates through the small round hole of the mounting seat and the locking block, and the locking block is kept in the rectangular through hole; a torsion spring connected between the locking block and the mounting seat; when the shear pin is inserted into the small round hole in the mounting seat to limit the locking block, the locking block is provided with a locking part protruding out of the mounting seat, the locking part extends into a locking groove of the goods, when the pushing force of the movement of the goods is greater than the shearing force of the shear pin, the shear pin is sheared by the locking block and the mounting seat, and the torsion spring further provides the elastic force for enabling the locking part of the locking block to leave the locking groove.

Description

Constant-force releasing device for goods

Technical Field

The application belongs to the technical field of constant force releasing of cargos, and particularly relates to a constant force releasing device for cargos.

Background

In the aspect of air transportation, a fixed-force locking device is often used, and the conventional fixed-force locking device can generally realize locking and releasing functions in the aspect of fixed-force unlocking, but cannot set separation and release loads. In order to realize the constant-force unlocking, different structural members are additionally required to be added, so that the structure of the constant-force locking device is too complex, the operation is inconvenient, the cost is high, the economy is poor, and the constant-force locking device is easily limited by external conditions.

Disclosure of Invention

It is an object of the present application to provide a cargo level release device to solve or mitigate at least one of the problems of the background art.

The technical scheme of the application is as follows: a cargo level release device comprising:

the mounting seat is arranged on the track and provided with a rectangular through hole extending along the direction perpendicular to the goods, and a larger round hole and a smaller round hole which penetrate through the rectangular through hole are formed in the mounting seat;

the locking block is arranged in the rectangular through hole;

the pin shaft penetrates through a large round hole of the mounting seat and a bending point of the locking block, and the locking block can rotate around the axis of the pin shaft through the pin shaft;

the shear pin penetrates through the small round hole of the mounting seat and the locking block, and the shear pin enables the locking block to be kept in the rectangular through hole; and

the torsional spring is sleeved outside the pin shaft and connected between the locking block and the mounting seat;

when the shear pin is inserted into the small round hole in the mounting seat to limit the locking block, the locking block is provided with a locking part protruding out of the mounting seat, the locking part extends into a locking groove of the goods, when the pushing force of the movement of the goods is greater than the shearing force of the shear pin, the shear pin is sheared by the locking block and the mounting seat, and the torsion spring further provides an elastic force for enabling the locking part of the locking block to leave the locking groove.

Furthermore, the mounting seat is of a rectangular structure.

Further, the bending angle of the locking block is about 120 degrees to 150 degrees.

Further, the material strength of the shear pin is lower than that of the mounting seat and the locking block.

Further, the locking groove on the goods is rectangular.

The application provides a goods constant force release device can realize the constant force structure of goods, and simple structure, easily operation and control.

Drawings

In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.

Fig. 1 is a schematic view of a cargo constant force releasing device according to the present application.

Fig. 2 is a side view of the cargo weight release device of the present application.

Fig. 3 is a schematic view of the cargo constant force releasing device of the present application at the time of starting releasing.

Fig. 4 is a schematic view of the cargo constant force releasing device of the present application after being completely released.

Reference numerals:

11-rail

12 goods

13-locking groove

21-mounting seat

22-locking block

23-pin shaft

24-shear pin

25-torsion spring

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.

In order to achieve reliable deadweight disengagement of the cargo, a simple and practical cargo deadweight disengagement device is provided.

As shown in fig. 1 and 2, the cargo constant force release device provided by the present application includes a mounting seat 21, a locking block 22, a pin 23, a shearing pin 24 of various specifications, and a torsion spring 25.

Wherein the goods 12 are in two tracks 11, and a locking groove 13 is arranged at the left side of the goods 12. In one embodiment of the present application, the locking groove 13 has a rectangular shape.

In one embodiment of the present application, the mounting base 21 is substantially a rectangular body. The mounting seat 21 is installed in the middle of the left rail, and the right side surface of the mounting seat 21 is flush with the right side surface of the left rail. The left surface and the right surface of the mounting base 21 are provided with a rectangular through hole 211. In the direction perpendicular to the rail 11, the front surface of the mounting base 21 has a larger circular through hole near the right end and passes through the rectangular through hole 211, and the front surface of the mounting base 21 has a smaller circular through hole near the upper left corner and also passes through the rectangular through hole 211.

The locking block 22 is bent at an angle of approximately 120 to 150 degrees. The locking block 22 has a larger circular through hole at about the bend and a smaller circular through hole at one end. The locking block 22 is installed in the rectangular through hole 211 of the installation seat 21, and the pin 23 sequentially passes through the larger circular through hole of the installation seat 21 and the larger circular through hole of the locking block 22, so that the locking block 22 is limited in the rectangular through hole of the installation seat 1.

The shear pin 24 sequentially passes through the small circular through hole of the mounting seat 21 and the small large circular through hole of the locking block 22, so that the locking block 22 cannot freely rotate in the rectangular through hole 211 of the mounting seat 21, and at this time, the right end of the locking block 22 forms a locking part 221 extending into the locking groove 13 of the cargo 12, so that the cargo 12 can be restricted from sliding in the two rails 11. In order to achieve shearable shearing of the shear pin 24, the shear pin 24 is made of a material having a strength lower than those of the mounting seat 21 and the lock block 22.

The torsion spring 25 is disposed in the rectangular through hole 211, and is fitted over the outside of the pin shaft 23 and placed between the locking block 22 and the mounting seat 1, and always provides a load for rotating the locking block 22 counterclockwise, which rotates the locking portion 221 of the locking block 22 out of the locking groove 13.

As shown in fig. 3 and 4, in use, the cargo 12 is placed in the two rails 11, the locking groove 13 of the cargo 12 is aligned with the middle part of the right side of the mounting seat 21, the locking block 22 is rotated clockwise by hand, the right end locking part 221 of the locking block 22 enters the locking groove 13 of the cargo 12, and the shear pin 24 with a fixed force is inserted, so that the cargo 12 cannot slide in the two rails 11. When the force of the goods 12 sliding upwards is larger than the shearing force of the shearing pin 24, and the shearing pin 24 is sheared, the locking block 22 rotates anticlockwise under the action of the torsion spring 25, and the right end locking part 221 of the locking block 22 is separated from the locking groove 13 of the goods 12, so that the locking of the goods 12 is released, and the constant force releasing function of the goods 12 is realized.

Due to the fact that the goods are released in a shearing mode of the shearing pin 24, the releasing strength value can be adjusted by changing different shearing pins 24, and therefore the goods can be safely released under the condition of different strength values. Through the compound mode that adopts shear pin 24, torsional spring 25 and locking block 22, realized that the right-hand member sticking department 221 of locking block 22 is in the locking groove 13 of goods 11 all the time when using promptly, guaranteed reliable locking when not reaching the fixed power value, realized again when not using, the right-hand member sticking department 221 of locking block 22 leaves the locking groove 13 of goods 12 all the time, guaranteed the safe free slip of goods 12 in track 11.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A cargo anchoring force releasing device, characterized in that said cargo anchoring force releasing device comprises:

at least one mounting seat (21) mounted on the rail (11), wherein the mounting seat (21) is provided with a rectangular through hole (211) extending along the direction perpendicular to the goods (12), and the mounting seat (21) is provided with a larger round hole and a smaller round hole which penetrate through the rectangular through hole (211);

the locking block (22) with a bent main body part is arranged in the rectangular through hole;

a pin shaft (23) penetrating through a larger round hole of the mounting seat and a bending point of the locking block, wherein the pin shaft (23) enables the locking block (22) to rotate around the axis of the pin shaft;

a shear pin (24) passing through the smaller circular hole of the mounting seat and the locking block, wherein the shear pin (24) keeps the locking block (22) in the rectangular through hole (211); and

a torsion spring (25) sleeved outside the pin shaft (23) and connected between the locking block (22) and the mounting seat (21);

when the shear pin (24) is inserted into a small round hole in the mounting seat (21) to limit the position of the locking block (22), the locking block (22) is provided with a locking part (221) protruding out of the mounting seat (21), the locking part (221) extends into a locking groove (13) of the goods (12), when the moving thrust of the goods (12) is greater than the shearing force of the shear pin (24), the shear pin (24) is sheared by the locking block (22) and the mounting seat (21), and the torsion spring (25) further provides elastic force enabling the locking part (221) of the locking block (22) to leave the locking groove (13).

2. The cargo weight release device according to claim 1, wherein the mounting seat (21) is of a rectangular body structure.

3. The cargo effort release device according to claim 1, characterized in that the bending angle of the locking piece (22) is about 120 to 150 degrees.

4. The cargo weight release device according to claim 1, wherein the shear pin (24) has a material strength lower than that of the mounting seat (21) and the locking block (22).

5. A cargo weight release device according to claim 1, characterized in that the locking groove (13) on the cargo (12) is rectangular.