CN213171368U

CN213171368U - Vertical lift

Info

Publication number: CN213171368U
Application number: CN202021894000.8U
Authority: CN
Inventors: 曹立峰; 刘永
Original assignee: Shenzhen Laun Clean Technology Co ltd
Current assignee: Shenzhen Laun Clean Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-05-11
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a vertical lift, including bottom plate, lifting platform, two sets of scissors fork group and power unit, bottom plate and lifting platform four corners all are equipped with fixed protrusion, scissors fork group includes multistage scissors fork arm, first connecting rod and second connecting rod, scissors fork arm includes fixed arm and digging arm, bottom plate and lifting platform homonymy fixed protrusion's lateral wall rotates with the fixed arm to be connected, first connecting rod is connected with the digging arm at scissors fork group both ends, the second connecting rod is connected with the digging arm in scissors fork group middle part; the power mechanism comprises a third connecting rod and a lead screw motor, the third connecting rod is connected with a fixed arm in the middle of a group of scissor groups, the lead screw motor is fixed on the third connecting rod, a lead screw of the lead screw motor penetrates through the third connecting rod, a threaded hole is formed in the middle of a second connecting rod of the scissor group far away from the power mechanism, and the lead screw of the lead screw motor is in threaded connection with the threaded hole. The utility model provides a vertical lift of high stability, convenient to use, safety.

Description

Vertical lift

Technical Field

The utility model relates to a vertical lift technical field especially relates to a vertical lift.

Background

A vertical lift is also called a lifting platform. Is a hoisting machine for vertically transporting people or objects. Also refers to equipment for vertical conveying in logistics systems such as factories and automatic warehouses, and various plane conveying equipment is often arranged on the lifting platform and is used as a connecting device for conveying lines with different heights.

The most widely used at present is a scissor type lifting structure matched with a hydraulic cylinder telescopic lifter. The shearing fork arms are driven to rotate through the air cylinder so as to lift the lifting platform. Because the scissor fork arms are rotatably connected, the supporting structure is completely dependent on the air cylinder, the air cylinder is greatly damaged after long-time use, and the air cylinder needs to be periodically maintained and replaced. Meanwhile, the rotating structure of the single-shear fork arm can also be loosened along with the use time length, the lifting platform can swing and shake in the operation process of workers, the influence on the construction of workers is avoided, and certain potential safety hazards exist. Therefore, a highly stable elevator structure is required.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vertical lift of high stability, convenient to use, safety.

The utility model discloses a vertical lift adopts technical scheme is:

a vertical lift comprises a bottom plate, a lifting platform, two groups of scissor fork sets and a power mechanism, wherein fixed protrusions are arranged at four corners of the bottom plate and four corners of the lifting platform, each scissor fork set comprises a multi-stage scissor arm, a first connecting rod and a second connecting rod, each scissor fork arm comprises a fixed arm and a movable arm, the side walls of the fixed protrusions at the same sides of the bottom plate and the lifting platform are rotatably connected with the fixed arms, the first connecting rods are connected with the movable arms at two ends of each scissor fork set, and the second connecting rods are connected with the movable arms in the middle of each scissor fork set; the power mechanism comprises a third connecting rod and a lead screw motor, the third connecting rod is connected with a fixed arm in the middle of a group of scissor groups, the lead screw motor is fixed on the third connecting rod, a lead screw of the lead screw motor penetrates through the third connecting rod, a threaded hole is formed in the middle of a second connecting rod of the scissor group far away from the power mechanism, and the lead screw of the lead screw motor is in threaded connection with the threaded hole.

As a preferred scheme, the relative terminal surface of bottom plate and lift table is equipped with the carriage group respectively, be equipped with many first slide bars between the carriage group, a plurality of first through-holes have been seted up to first connecting rod, first slide bar passes first through-hole, just first connecting rod can slide on first slide bar and move.

As a preferred scheme, a plurality of second through holes have still been seted up to the second connecting rod, be equipped with many second slide bars on the third connecting rod, the lead screw of second slide bar and lead screw motor is parallel, the second slide bar passes the second through hole, just the second connecting rod can slide on the second slide bar.

As the preferred scheme, fixed lugs are arranged at four corners of the bottom plate.

Preferably, the end face of the bottom plate close to the lifting table is provided with a weight reduction groove.

As a preferred scheme, one end of the lifting platform, which is far away from the bottom plate, is provided with anti-skid salient points which are arranged in a matrix manner.

As a preferred scheme, guardrails are arranged on the periphery of the lifting platform.

The utility model discloses a vertical lift's beneficial effect is: the bottom plate and four corners of the lifting platform are provided with fixing bulges. The scissor group comprises a multi-stage scissor arm, a first connecting rod and a second connecting rod. The shearing fork arm comprises a fixed arm and a movable arm, the side wall of the fixed protrusion on the same side of the bottom plate and the lifting platform is rotatably connected with the fixed arm, the first connecting rod is connected with the movable arms at the two ends of the shearing fork group, and the second connecting rod is connected with the movable arm in the middle of the shearing fork group. The power mechanism comprises a third connecting rod and a lead screw motor, the third connecting rod is connected with a fixed arm in the middle of the group of scissor groups, the lead screw motor is fixed on the third connecting rod, and a lead screw of the lead screw motor penetrates through the third connecting rod. The middle part of a second connecting rod of the scissor group far away from the power mechanism is provided with a threaded hole, and a screw rod of a screw rod motor is in threaded connection with the threaded hole. The screw rod motor drives the screw rod to rotate, and further drives the second connecting rod to transversely slide on the screw rod. Because the fixed arm is rotationally connected with the immovable fixed bulge, the movement of the second connecting rod can cause the shear fork group to longitudinally displace so as to realize lifting. The lead screw blocks the longitudinal displacement of the scissor group, a simple self-locking structure is formed, and a good blocking and limiting effect can be achieved. Two sets of scissors fork group go up and down in coordination, can make the lift process more stable, and two sets of scissors fork group can restrict each other simultaneously, reduce the risk that singly organize easily not hard up, increase of service life.

Drawings

Fig. 1 is a schematic structural view of a vertical lift of the present invention;

fig. 2 is a schematic structural view of a bottom plate of a vertical lift according to the present invention;

fig. 3 is a schematic structural view of a first scissor set of the vertical lift of the present invention;

fig. 4 is a schematic structural view of a second scissor set of the vertical lift of the present invention;

fig. 5 is a schematic structural diagram of a power mechanism of a vertical lift according to the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1, a vertical lift includes a base plate 10, a lifting platform 20, a first scissor set 31, a second scissor set 32, and a power mechanism 40.

Referring to fig. 2, the bottom plate 10 and the lifting platform 20 are provided with fixing protrusions 11 at four corners.

Referring to fig. 3 and 4, each of the first scissors set 31 and the second scissors set 32 includes a multi-stage scissors arm 301, a first link 302 and a second link 303. The scissor arm 301 comprises a fixed arm 3011 and a movable arm 3012, the bottom plate 10 and the lifting platform 20 are rotatably connected with the fixed arm 3011 through the side wall of the fixed protrusion 11 on the same side, the first connecting rod 302 is connected with the movable arms 3012 at the two ends of the scissor group, and the second connecting rod 303 is connected with the movable arms 3012 at the middle parts of the two scissor groups.

Referring to fig. 5, the power mechanism 40 includes a third link 41 and a lead screw motor 42, the third link 41 is connected to the fixing arm 3011 at the middle of the first scissors assembly 31, the lead screw motor 42 is fixed on the third link 41, and a lead screw 421 of the lead screw motor 42 passes through the third link 41.

A threaded hole 3031 is formed in the middle of the second connecting rod 303 of the second scissors group 32, and the lead screw 421 of the lead screw motor 42 penetrates through the second connecting rod 303 of the first scissors group 31 to be in threaded connection with the threaded hole 3031.

The lead screw motor 42 drives the lead screw 421 to rotate, and further drives the second connecting rod 303 to slide transversely on the lead screw 421. Since the fixing arm 3011 is rotatably connected to the immovable fixing protrusion 11, the movement of the second link 303 will cause the scissors to move longitudinally to achieve the lifting. The screw 421 blocks the longitudinal displacement of the scissor group, so as to form a simple self-locking structure, and play a good role in blocking and limiting. Two sets of scissors fork group go up and down in coordination, can make the lift process more stable, and two sets of scissors fork group can restrict each other simultaneously, reduce the risk that singly organize easily not hard up, increase of service life.

Preferably, the opposing end surfaces of the bottom plate 10 and the lifting platform 20 are respectively provided with a plurality of slide frame groups 12, a plurality of first slide bars 13 are disposed between the slide frame groups 12, the first connecting rod 302 is provided with a plurality of first through holes 3021, the first slide bars 13 pass through the first through holes 3021, and the first connecting rod 302 can slide on the first slide bars 13. Meanwhile, the second connecting rod 303 is further provided with a plurality of second through holes 3032, the third connecting rod 41 is provided with a plurality of second sliding rods 43, the second sliding rods 43 are parallel to the screw rod 421 of the screw rod motor 42, the second sliding rods 43 pass through the second through holes 3032, and the second connecting rod 303 can slide on the second sliding rods 43, so that the scissor group can slide more smoothly, and the pressure of the screw rod 421 can be relieved. In this embodiment, the number of the first slide bar 13 and the number of the second slide bar 43 are two, and the two slide bars are symmetrically distributed.

In this embodiment, the four corners of the bottom plate 10 are provided with the fixing lugs 14, so that the bottom plate 10 can be fixed on the bottom surface, and the danger caused by the sliding of the bottom plate 10 is avoided. Meanwhile, the end face of the bottom plate 10 close to the lifting table 20 is provided with a lightening slot 15, so that the overall weight is reduced, and the user can move conveniently.

One end of the lifting platform 20, which is far away from the bottom plate 10, is provided with anti-skid salient points 21 which are arranged in a matrix manner; and guard rails 22 are provided around the lifting platform 20. The worker can be effectively prevented from falling.

The utility model provides a vertical lift, bottom plate and lift a four corners and all be equipped with fixed arch. The scissor group comprises a multi-stage scissor arm, a first connecting rod and a second connecting rod. The shearing fork arm comprises a fixed arm and a movable arm, the side wall of the fixed protrusion on the same side of the bottom plate and the lifting platform is rotatably connected with the fixed arm, the first connecting rod is connected with the movable arms at the two ends of the shearing fork group, and the second connecting rod is connected with the movable arm in the middle of the shearing fork group. The power mechanism comprises a third connecting rod and a lead screw motor, the third connecting rod is connected with a fixed arm in the middle of the group of scissor groups, the lead screw motor is fixed on the third connecting rod, and a lead screw of the lead screw motor penetrates through the third connecting rod. The middle part of a second connecting rod of the scissor group far away from the power mechanism is provided with a threaded hole, and a screw rod of a screw rod motor is in threaded connection with the threaded hole. The screw rod motor drives the screw rod to rotate, and further drives the second connecting rod to transversely slide on the screw rod. Because the fixed arm is rotationally connected with the immovable fixed bulge, the movement of the second connecting rod can cause the shear fork group to longitudinally displace so as to realize lifting. The lead screw blocks the longitudinal displacement of the scissor group, a simple self-locking structure is formed, and a good blocking and limiting effect can be achieved. Two sets of scissors fork group go up and down in coordination, can make the lift process more stable, and two sets of scissors fork group can restrict each other simultaneously, reduce the risk that singly organize easily not hard up, increase of service life.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A vertical lift comprises a bottom plate and a lifting platform, wherein four corners of the bottom plate and four corners of the lifting platform are provided with fixed protrusions, and the vertical lift is characterized by further comprising two groups of scissor groups, each scissor group comprises a multistage scissor arm, a first connecting rod and a second connecting rod, each scissor arm comprises a fixed arm and a movable arm, the side walls of the fixed protrusions on the same sides of the bottom plate and the lifting platform are rotatably connected with the fixed arms, the first connecting rods are connected with the movable arms at two ends of each scissor group, and the second connecting rods are connected with the movable arms in the middle of each scissor group;

the power mechanism comprises a third connecting rod and a lead screw motor, the third connecting rod is connected with a fixed arm in the middle of one group of the scissor groups, the lead screw motor is fixed on the third connecting rod, and a lead screw of the lead screw motor penetrates through the third connecting rod;

and a threaded hole is formed in the middle of the second connecting rod of the scissor group far away from the power mechanism, and a screw rod of the screw rod motor is in threaded connection with the threaded hole.

2. The vertical lift of claim 1, wherein opposing end surfaces of the base plate and the lift platform are each provided with a set of carriages, wherein a plurality of first slide bars are disposed between the sets of carriages, wherein the first link is provided with a plurality of first through holes, wherein the first slide bars pass through the first through holes, and wherein the first link slides on the first slide bars.

3. The vertical lift according to claim 1, wherein the second link further defines a plurality of second through holes, the third link further defines a plurality of second slide bars, the second slide bars are parallel to the lead screw of the lead screw motor, the second slide bars pass through the second through holes, and the second link slides on the second slide bars.

4. A vertical lift as claimed in any one of claims 1 to 3 wherein said base plate is provided with fixing lugs at four corners.

5. A vertical lift as claimed in claim 4 wherein said floor has weight-reducing slots in its end face adjacent said platform.

6. A vertical lift as claimed in any one of claims 1 to 3 wherein the end of the platform remote from the base is provided with a matrix of anti-skid projections.

7. A vertical lift as claimed in claim 6 wherein said lifting platform is provided with guard rails around its periphery.