CN217296913U

CN217296913U - Automatic folding lifting appliance

Info

Publication number: CN217296913U
Application number: CN202221019819.9U
Authority: CN
Inventors: 林绍勇; 罗昕; 李永成; 张环宇; 杨大鹏
Original assignee: SHENYANG AEROSPACE XINLE CO LTD
Current assignee: SHENYANG AEROSPACE XINLE CO LTD
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-26
Anticipated expiration: 2032-04-29

Abstract

The utility model relates to an automatic folding hoist. The utility model discloses a hoist can accomplish automatic folding under the actuator drive to the actuator arm of force changes for a short time, and folding back occupation space is little. Automatic folding hoist, including the hoist middle part, the hoist tip, the middle part pendulum rod, tip pendulum rod and actuator, hoist middle part and hoist tip rotate to be connected, the middle part pendulum rod, the tip of tip pendulum rod and actuator articulates at a round pin epaxially, the other end of actuator and middle part pendulum rod articulates respectively on the hoist middle part, the other end and the hoist tip of tip pendulum rod are articulated, actuator drive middle part pendulum rod and tip pendulum rod rotate to realize that hoist middle part and hoist tip expand relatively and fold.

Description

Automatic folding lifting appliance

Technical Field

The utility model relates to a hoist, especially an automatic folding hoist.

Background

Because the transportation space is small, the lifting appliance is often required to be folded and stored in the transportation process, the rotation angle of each part of the lifting appliance is large in the folding process, the traditional actuator adopts a direct-pushing rotation mode, and the working arm of the actuator is large in change, so that the occupied space is large, and the use requirement of the lifting appliance cannot be met; at present, the conventional method is that manual rotation is carried out, locking is carried out through a bolt shaft mode after the manual rotation is in place, operation is time-consuming and labor-consuming, and how to design a folding lifting appliance which occupies a small change of an actuator force arm in a limited space is a technical problem to be solved by technical personnel in the field.

Disclosure of Invention

The utility model provides an automatic folding hoist has realized that the hoist can accomplish automatic folding under the actuator drive to the actuator arm of force changes for a short time, and folding back occupation space is little.

In order to achieve the purpose, the technical scheme adopted by the patent is as follows:

automatic folding hoist, including hoist middle part, hoist tip, middle part pendulum rod, tip pendulum rod and actuator, hoist middle part and hoist tip rotate to be connected, and the tip of middle part pendulum rod, tip pendulum rod and actuator articulates at a round pin epaxially, and the other end of actuator and middle part pendulum rod articulates respectively on the hoist middle part, and the other end and the hoist tip of tip pendulum rod articulate, and actuator drive middle part pendulum rod and tip pendulum rod rotate and realize that hoist middle part and hoist tip expand relatively and fold.

Furthermore, the end parts of the lifting appliance comprise two end parts which are respectively connected with the two ends of the middle part of the lifting appliance, and the two actuators respectively control the relative rotation of the end parts of the two lifting appliances and the middle part of the lifting appliance through the middle swing rod and the end part swing rod which are connected with the two actuators.

Furthermore, the hinge point of the swing rod at the end part and the end part of the lifting appliance and the hinge point of the swing rod at the middle part and the middle part of the lifting appliance are both close to the connecting point of the middle part and the end part of the lifting appliance.

Further, the actuator is a hydraulic cylinder, an electric cylinder, or an air cylinder.

Beneficial effects of the utility model

The utility model discloses a hoist middle part, hoist tip and actuator driven four-bar linkage, this four-bar linkage comprises following four parts: the lifting device comprises a middle swing rod, an end swing rod, a part from a hinged point of the end swing rod and the end of the lifting device to a connecting point between the end of the lifting device and the middle of the lifting device, and a part from the connecting point between the middle of the lifting device and the end of the lifting device to a hinged point between the middle swing rod and the middle of the lifting device. The four-bar mechanism can be driven to move through the expansion of the actuator, so that the end part of the lifting appliance and the middle part of the lifting appliance rotate relatively, the influence of the rotation angle on the power arm of the actuator is small in the process of large-angle relative rotation between the end part of the lifting appliance and the middle part of the lifting appliance, and the full-stroke large power arm of the actuator can be driven to rotate. The utility model discloses a link to each other with the davit through the hoist middle part, hoist after the expansion, convenient transportation and deposit after folding, the component part is few, simple structure, and is small, especially has two hoist end structure, and shared space is not big after folding yet.

Drawings

Fig. 1 is a schematic view of the present invention in an expanded state;

fig. 2 is a schematic view of the folded state of the present invention;

FIG. 3 is a bottom view of FIG. 2;

fig. 4 is a left side view of fig. 3.

Detailed Description

Fig. 1-4 are schematic views of the invention comprising two spreader ends 1. The automatic folding sling comprises sling

end parts

1 and 1 ^/ Middle part 5 of sling and end parts of

swing rods

2 and 2 ^/

Middle swing rods

3 and 3 ^/ And

actuators

4, 4 ^/

Actuators

4, 4 ^/ Hydraulic cylinders, electric cylinders or pneumatic cylinders may be employed.

End part

1, 1 of sling ^/ Through pin shafts A8, 8 ^/ Rotatably connected with two ends of the middle part 5 of the sling, and

middle swing rods

3 and 3 ^/

End swing links

2, 2 ^/ And

actuators

4, 4 ^/ The ends of the three parts pass through pin shafts B7 and 7 ^/ Hinged,

middle pendulum rods

3, 3 ^/ The other end of the pin (C) 9, 9 ^/ Hinged with the middle part 5 of the sling and provided with

end swing rods

2 and 2 ^/ The other end of the pin shaft D6, 6 ^/ And

end parts

1, 1 of the lifting appliance ^/ Hinged, pin D6, 6 ^/ And pins C9, 9 ^/ Are all arranged close to the pinAxes A8, 8 ^/ The position of (a).

End swing links

2, 2 ^/

Middle swing rods

3 and 3 ^/ Pin C9, 9 ^/ And the pin shafts A8, 8 ^/ The pin shafts D6, 6 ^/ And the pin shafts A8, 8 ^/ The portion in between forms a four bar linkage. One end of the actuator 4 passes through the pin shafts E10, 10 ^/ Hinged with the middle part 5 of the sling, and

actuators

4 and 4 ^/ Can drive the

end parts

1 and 1 of the lifting appliance ^/ Rotate relative to the middle part 5 of the sling, and are arranged at the

end parts

1 and 1 of the sling ^/ In the process of rotating with the middle part 5 of the lifting appliance, the rotating angle is opposite to the

actuators

4 and 4 ^/ The influence of the power arm is small, and the

actuators

4 and 4 are realized ^/ The full-stroke large power arm drives to rotate.

When the utility model discloses a during the structure of a hoist tip 1, set up corresponding a set of tip pendulum rod 2, middle part pendulum rod 3 and actuator 4, the connected mode is with the above, no longer gives unnecessary details.

Claims

1. The utility model provides an automatic folding hoist, its characterized in that includes the hoist middle part, the hoist tip, middle part pendulum rod, tip pendulum rod and actuator, hoist middle part and hoist tip rotate to be connected, the tip of middle part pendulum rod, tip pendulum rod and actuator articulates at a round pin epaxially, the other end of actuator and middle part pendulum rod articulates respectively on the hoist middle part, the other end and the hoist tip of tip pendulum rod articulate, actuator drive middle part pendulum rod and tip pendulum rod rotate and realize that hoist middle part and hoist tip expand relatively and fold.

2. The automatic folding hanger of claim 1, wherein the end portions of the hanger comprise two end portions connected to two ends of the middle portion of the hanger, respectively, and the two actuators control the relative rotation of the two end portions of the hanger and the middle portion of the hanger through the middle swing link and the end swing link connected thereto, respectively.

3. The automatically folding spreader of claim 2 wherein the hinge point from the end pendulum to the spreader end and the hinge point from the middle pendulum to the spreader middle are both adjacent to the spreader middle to spreader end connection point.

4. The automatic folding spreader of claim 1, wherein the actuator is a hydraulic cylinder, an electric cylinder, or an air cylinder.