CN211553244U

CN211553244U - Unhooking device

Info

Publication number: CN211553244U
Application number: CN202020136302.2U
Authority: CN
Inventors: 宋建锋
Original assignee: Hebei Shijiheng Taifu Plastics Co ltd
Current assignee: Hebei Shijiheng Taifu Plastics Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-09-22
Anticipated expiration: 2030-01-21

Abstract

The utility model discloses a unhook device relates to the hook field. The lifting hook comprises a support, the support middle part is equipped with the guide pin bushing, the guide pin bushing center is equipped with the guiding hole, the round pin hypomere stretches into in the guiding hole, be connected with eyebolt on support upper portion, be equipped with the spring between eyebolt's double-screw bolt portion and the round pin epaxial section, round pin axle middle section is connected with the second pivot, the perpendicular round pin axle the central axis of second pivot the central axis, be equipped with the third pivot in the support side, the parallel second pivot of third pivot, the handle rotates in proper order and connects second pivot and third pivot, be equipped with first pivot in the support lower part, the perpendicular round pin axle the central axis of first pivot the central axis, the first pivot is connected in the lifting hook rotation, lifting hook upper portion is equipped with. The utility model discloses simple structure utilizes the self gravity of bucket to make the bucket break away from the lifting hook and freely fall, easy operation, and is efficient, and the security is good.

Description

Unhooking device

Technical Field

The utility model relates to a hook technical field specifically indicates a unhook device.

Background

After the plastic barrel is produced, a drop test is carried out, and the concrete operation is that after the barrel is lifted to a certain height, the barrel is freely dropped, and the deformation degree and the strength of the barrel are checked. When the barrel falls, the tester needs to be far away from the falling range of the barrel, so that the safety is ensured.

Disclosure of Invention

The utility model aims to solve the technical problem that a unhooking device for drop test is provided, simple structure utilizes the self gravity of bucket to make the bucket break away from the lifting hook and freely fall, easy operation, and is efficient, and the security is good.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the utility model provides a unhook device, a serial communication port, including the support, the support middle part is equipped with the guide pin bushing, the guide pin bushing center is equipped with the guiding hole, the round pin hypomere stretches into in the guiding hole, be connected with eye screw on support upper portion, be equipped with the spring between eye screw's double-screw bolt portion and the round pin epaxial section, the round pin axle middle section is connected with the second pivot, the perpendicular round pin axle central axis of second pivot central axis, be equipped with the third pivot in the support side, the parallel second pivot of third pivot, the handle rotates in proper order and connects second pivot and third pivot, be equipped with first pivot in the support lower part, the perpendicular round pin axle central axis of first pivot central axis, the first pivot is connected in the lifting hook rotation, lifting hook upper portion is equipped with an opening.

Preferably, the pin shaft is provided with a first pillow block on the upper surface of the guide sleeve.

Further preferably, when the first platform of the pin shaft falls on the surface of the guide sleeve, the tail end of the pin shaft is clamped in the notch on the upper part of the lifting hook.

Further preferably, the pin is provided with a second abutment at the contact spring.

Preferably, a single-sided gap between the guide hole of the guide sleeve and the pin shaft is larger than the horizontal displacement of the second rotating shaft when the handle rotates around the third rotating shaft.

Preferably, the hook has a lower hook side with a smaller weight than an upper hook side with respect to the first pivot center as a dividing point.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

1. the utility model adopts the handle to drive the pin shaft to move up and down in the guide hole of the guide sleeve through the second rotating shaft and the third rotating shaft, and the size of the guide hole meets the requirement that the pin shaft is driven to move up and down to generate horizontal displacement when the handle rotates, so that a person can move up the pin shaft when rotating the handle, loosen the lifting hook, rotate the lifting hook around the first rotating shaft under the action of gravity of a lifted heavy object, the heavy object drops when rotating to the lowest point of the hook, and a tester can remotely drive the handle to rotate through a rope, thereby saving labor and ensuring the safety of the tester outside the falling range of the heavy object;

2. the lifting hook is unequal in weight on two sides of the first rotating shaft, the weight of the lower portion of the lifting hook is smaller than that of the upper portion of the lifting hook, and after the heavy object falls, the lifting hook can automatically return to the initial position to prepare for next operation.

Drawings

FIG. 1 is a schematic view showing a state and a sectional structure of a hook for hanging a heavy object;

FIG. 2 is a schematic view of the state and cross-sectional structure of the second shaft at the maximum horizontal displacement during the upward movement of the pin;

FIG. 3 is a schematic view showing a state and a sectional structure when a weight is dropped;

in the figure: 1. lifting bolt 2, support 3, spring 4, round pin axle 5, guide pin bushing 6, first pivot 7, lifting hook 8, second pivot 9, third pivot 10, handle.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in figure 1, the unhooking device comprises a support 2, a flat plate is arranged on the support 2, two side plates are welded on two sides of the flat plate, a guide sleeve 5 is positioned in the middle of the support 2 and welded between the two side plates, a guide hole is formed in the center of the guide sleeve 5, the lower section of a pin shaft 4 extends into the guide hole, a first pillow block is arranged on the upper surface of the guide sleeve 5 of the pin shaft 4 and plays a limiting role in the axial direction of the pin shaft 4, a lifting ring screw 1 is connected to the flat plate on the upper portion of the support 2, the lifting ring screw 1 is screwed on the flat plate, a stud portion of the lifting ring screw 1 penetrates through the flat plate and extends out of a part, a spring 3 is arranged between the extending stud portion and the upper section of the pin shaft 4, a second pillow block is arranged on the contact spring 3 of the pin shaft 4, a second rotating shaft 8 is welded on the middle section of the pin, the handle 10 is sequentially connected with a second rotating shaft 8 and a third rotating shaft 9 in a rotating mode, a first rotating shaft 6 is arranged on the lower portion of the support 2, the central axis of the first rotating shaft 6 is perpendicular to the central axis of the pin shaft 4, the lifting hook 7 is connected with the first rotating shaft 6 in a rotating mode, an opening is formed in the upper portion of the lifting hook 7, and the tail end of the pin shaft 4 is downwards clamped on the opening of the lifting hook 7 under the elastic force action of the spring 3.

Specifically, when the first platform of the pin shaft 4 falls on the surface of the guide sleeve 5, the tail end of the pin shaft 4 is clamped in the notch at the upper part of the lifting hook 7. When the pin shaft 4 is lowered to the lowest position, the tail end of the pin shaft can clamp the lifting hook 7, so that the hook of the lifting hook 7 hooks the heavy object and the heavy object cannot fall off.

Specifically, a single-sided gap between the guide hole of the guide sleeve 5 and the pin 4 is larger than the horizontal displacement of the second rotating shaft 8 when the handle 10 rotates around the third rotating shaft 9. The pin shaft 4 can generate displacement in two directions in the up-and-down moving process, one is displacement in the vertical direction, and the other is displacement in the horizontal direction, so that the size of the guide hole is larger than that of the pin shaft 4, and the requirement for the movement of the pin shaft 4 in the horizontal direction is met.

Specifically, the hook 7 is divided by the center of the first rotation shaft 6, and the weight of the lower hook side of the hook 7 is smaller than the weight of the upper part of the hook 7. The hook 7 can automatically return to the original state to prepare for the next test.

When the device is used for testing, the crown block hangs the lifting eye screw 1 to enable the unhooking device to descend, a tester hangs a tested plastic barrel on the lifting hook 7, the pin shaft 4 automatically moves downwards under the elastic action of the spring 3 to clamp the opening on the upper portion of the lifting hook 7, the tester moves out of the falling range of the plastic barrel, the remote control crown block lifts the plastic barrel to a testing height, then a rope tied on the handle 10 is pulled to enable the handle 10 to rotate, the handle 10 drives the pin shaft 4 to move upwards, the limitation of the pin shaft 4 is avoided, the plastic barrel on the lifting hook 7 falls under the action of gravity, the lifting hook 7 rapidly returns to an original position under self gravity, the tester loosens the rope, the pin shaft 4 moves downwards under the elastic action of the spring 3 to clamp the lifting hook 7, and the next falling test is prepared.

It should be noted that the hook 7 of the present device is shaped so as to ensure that the weight suspended from the hook slides down the hook by its own weight when the hook is rotated to its lowest point.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A unhooking device is characterized by comprising a support (2), a guide sleeve (5) is arranged in the middle of the support (2), a guide hole is formed in the center of the guide sleeve (5), the lower section of a pin shaft (4) extends into the guide hole, a lifting screw (1) is connected to the upper portion of the support (2), a spring (3) is arranged between the screw part of the lifting screw (1) and the upper section of the pin shaft (4), a second rotating shaft (8) is connected to the middle section of the pin shaft (4), the central axis of the second rotating shaft (8) is perpendicular to the central axis of the pin shaft (4), a third rotating shaft (9) is arranged on the side face of the support (2), the third rotating shaft (9) is parallel to the second rotating shaft (8), a handle (10) is sequentially and rotatably connected with the second rotating shaft (8) and the third rotating shaft (9), a first rotating shaft (6) is arranged on the lower, the lifting hook (7) is rotatably connected with the first rotating shaft (6), the upper part of the lifting hook (7) is provided with a notch, and the tail end of the pin shaft (4) is downwards clamped on the notch of the lifting hook (7) under the elastic action of the spring (3).

2. Unhooking device according to claim 1, characterised in that the pin (4) is provided with a first abutment at the upper surface of the guide sleeve (5).

3. A unhooking device according to claim 2, characterized in that when the first abutment of the pin (4) is on the surface of the guide sleeve (5), the end of the pin (4) is caught in a notch in the upper part of the hook (7).

4. Unhooking device according to claim 2, characterised in that the pin (4) is provided with a second abutment where it contacts the spring (3).

5. Unhooking device according to claim 1, wherein the single-sided gap between the guide hole of the guide sleeve (5) and the pin (4) is larger than the horizontal displacement of the second axis of rotation (8) when the handle (10) is rotated about the third axis of rotation (9).

6. A unhooking apparatus according to claim 1, characterised in that the hook (7) is divided about the centre of the first axis of rotation (6) such that the weight of the lower hook side of the hook (7) is less than the weight of the upper part of the hook.