CN211226155U

CN211226155U - Lifting device

Info

Publication number: CN211226155U
Application number: CN201921772443.7U
Authority: CN
Inventors: 付雪轩; 吴小亭; 张玉奎; 李屹
Original assignee: Hebei Taihang Machinery Industries Co ltd
Current assignee: Hebei Taihang Machinery Industries Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-08-11
Anticipated expiration: 2029-10-22

Abstract

The utility model relates to a lifting device, which comprises a bottom plate, a lower frame arranged on the bottom plate, an upper frame sleeved in the lower frame, an inner oil cylinder arranged in the upper frame and side oil cylinders which are arranged on the lower frame and positioned at two sides of the upper frame and used for lifting the upper frame; the utility model discloses a bottom plate plays the supporting role, and is big with the area of contact on ground, and stability is good. The two side oil cylinders and the inner oil cylinder are independently telescopic, the side oil cylinders push the upper frame to drive the inner oil cylinder to move upwards, the inner oil cylinder can also move upwards, and the stroke of the whole device is equivalent to the sum of the strokes of the side oil cylinders and the inner oil cylinder.

Description

Lifting device

Technical Field

The utility model relates to a lifting device.

Background

The two-stage oil cylinder can realize a longer stroke in a given installation space than a single-stage oil cylinder, so that the two-stage oil cylinder is widely applied under the condition of tense installation space.

However, the internal structure of the two-stage oil cylinder is complex, difficult to process and high in cost.

When the diameters of the two-stage oil cylinders are small, the oil cylinders are easy to topple over and are easy to cause safety accidents under the condition that the oil cylinders are not fixed vertically upwards. And when the lifted object has displacement vertical to the lifting direction, the oil cylinder can not move along with the object.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can replace the lifting devices of current two-stage hydro-cylinder is provided to simple structure workable, stability is good simultaneously.

The utility model adopts the technical proposal that: a lifting device comprises a bottom plate, a lower frame arranged on the bottom plate, an upper frame sleeved in the lower frame, an inner oil cylinder arranged in the upper frame and side oil cylinders arranged on the lower frame and positioned on two sides of the upper frame and used for lifting the upper frame.

Furthermore, a vertical plate is arranged on the lower frame and is positioned between the side oil cylinder and the upper frame.

Furthermore, a side plate is arranged at the upper end of the upper frame and located above the vertical plate, and the top end of the side oil cylinder is connected with the side plate.

Furthermore, the upper frame is in sliding connection with the vertical plate through a sliding groove.

Furthermore, a sleeve is sleeved above the inner oil cylinder, the sleeve is of a box structure, the lower end of the sleeve is open, the upper end of the sleeve is closed, the sleeve is sleeved in the upper frame, and a top plate of the sleeve is in contact with the upper end of the inner oil cylinder.

Furthermore, a dovetail groove is formed in the bottom plate, a sliding block corresponding to the dovetail groove is arranged on the lower frame, and the bottom plate is in sliding connection with the lower frame.

Furthermore, the upper frame is box-shaped, the lower end of the upper frame is sealed, and the upper end of the upper frame is open.

The utility model discloses an actively the effect does: the utility model discloses a bottom plate plays the supporting role, and is big with the area of contact on ground, and stability is good. The two side oil cylinders and the inner oil cylinder are independently telescopic, the side oil cylinders push the upper frame to drive the inner oil cylinder to move upwards, the inner oil cylinder can also move upwards, and the stroke of the whole device is equivalent to the sum of the strokes of the side oil cylinders and the inner oil cylinder.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the slider of the present invention.

Detailed Description

As shown in the attached drawings 1 and 2, the utility model comprises a bottom plate 1, a lower frame 2, a side oil cylinder 3, an upper frame 4, a sleeve 5, an inner oil cylinder 6, a vertical plate 7, a side plate 8 and a slide block 9.

The upper end surface of the bottom plate 1 is provided with a dovetail groove, the lower end surface of the lower frame 2 is provided with a sliding block 9 corresponding to the shape of the dovetail groove, and the sliding block 9 is inserted in the dovetail groove to form sliding connection. The end face of the lower frame 2 is correspondingly provided with 2 vertical plates 7, the outer sides of the vertical plates 7 are respectively provided with a side oil cylinder 3, and the cylinder body of the side oil cylinder 3 is fixedly arranged on the lower frame 2. An upper frame 4 is arranged inside the two vertical plates 7, and the upper frame 4 is connected with the vertical plates 7 in a sliding mode through sliding grooves. The upper frame 4 is box-shaped, the lower end of the upper frame is closed, the upper end of the upper frame is open, a side plate 8 is arranged at the upper end of the side wall of the upper frame 4, and a piston rod of the side oil cylinder 3 is connected with the side plate 8.

The inner oil cylinder 6 is arranged in the upper frame 4, the cylinder body of the inner oil cylinder is connected with the upper frame 4, and the upper end of the inner oil cylinder is connected with the sleeve 5. The sleeve 5 is also of a box structure, the lower end of the sleeve is open, the upper end of the sleeve is closed, and the sleeve is inserted into the box body of the upper frame 4.

When the floor is used, the bottom plate 1 plays a supporting role, the contact area with the ground is large, and the stability is good. The two side oil cylinders 3 and the inner oil cylinder 6 are independently telescopic. The two side oil cylinders 3 push the upper frame 4 and drive the sleeve 5 and the inner oil cylinder 6 to move upwards; the inner oil cylinder 6 pushes the sleeve 5 to move upwards; the stroke is equivalent to the superposition sum of the strokes of the side oil cylinder 3 and the inner oil cylinder 6. When the sleeve 5 is subjected to lateral force to cause lateral movement, the upper frame 4 drives the lower frame 2 and the bottom plate 1 to slide relatively. The upper end of the sleeve 5 can be processed into different stress surfaces according to the shape of the supported object so as to generate better stress effect.

The utility model discloses a simple structure combination realizes the stroke stack of two kinds of single-stage hydro-cylinders, produces the effect of two-stage hydro-cylinder stroke. When the force is applied to the vertical lifting direction, the device can move along with the force application direction.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The lifting device is characterized by comprising a bottom plate (1), a lower frame (2) arranged on the bottom plate (1), an upper frame (4) sleeved in the lower frame (2), an inner oil cylinder (6) arranged in the upper frame (4) and side oil cylinders (3) which are arranged on the lower frame (2) and positioned on two sides of the upper frame (4) and used for lifting the upper frame (4).

2. A lifting device according to claim 1, characterised in that risers (7) are arranged on the lower frame (2), said risers (7) being located between the side cylinders (3) and the upper frame (4).

3. A lifting device as claimed in claim 2, characterized in that a side plate (8) is arranged at the upper end of the upper carriage (4), the side plate (8) being located above the riser (7), the top end of the side cylinder (3) being connected to the side plate (8).

4. A lifting device according to claim 2, characterised in that the upper carriage (4) is slidably connected to the riser (7) by means of sliding grooves.

5. A lifting device as claimed in claim 1, characterized in that a sleeve (5) is arranged above the inner cylinder (6), the sleeve (5) is of a box structure, the lower end of the sleeve is open, the upper end of the sleeve is closed, the sleeve is arranged in the upper frame (4), and the top plate of the sleeve is in contact with the upper end of the inner cylinder (6).

6. A lifting device according to claim 1, characterized in that a dovetail groove is provided on the base plate (1), a slide (9) corresponding to the dovetail groove is provided on the lower frame (2), and the base plate (1) and the lower frame (2) form a sliding connection.

7. A lifting device according to claim 1, characterised in that the upper frame (4) is box-shaped, sealed at its lower end and open at its upper end.