CN219363126U

CN219363126U - Novel lifting mechanism

Info

Publication number: CN219363126U
Application number: CN202223550299.7U
Authority: CN
Inventors: 孙学军; 陆国刚
Original assignee: Shandong Xiaokang Machinery Co ltd
Current assignee: Shandong Xiaokang Machinery Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-18
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a novel lifting mechanism, which comprises an upper connecting rod and a lower connecting rod which are arranged in bilateral symmetry, wherein the upper connecting rod and the lower connecting rod on each side are respectively connected in a rotary way through connecting rod shafts at the head positions, the upper ends of the upper connecting rods on each side are respectively connected with a top fixing plate in a rotary way, the lower ends of the lower connecting rods are respectively connected with a bottom fixing seat in a rotary way, the middle parts of the lower connecting rods on each side are respectively connected with the two ends of a middle connecting rod in a rotary way through push-pull connecting rods, and the bottom fixing seat is provided with a driving device for pushing the middle connecting rod to move up and down between the lower connecting rods. The utility model can effectively reduce the stroke of the air cylinder or the motor screw rod, reduce the size of the air cylinder or the torque of the motor, and when the upper part is pressed down by pressure, the lifting mechanism is stable, can be mechanically locked and does not drop; the stability of equipment operation has been increased, simultaneously, the cost is also reduced, simple structure.

Description

Novel lifting mechanism

Technical Field

The utility model relates to a lifting mechanism, in particular to a novel lifting mechanism.

Background

Various mechanical devices produced in the market at present, lifting mechanisms are very important components, but various lifting mechanisms at present have the following disadvantages, namely: the speed is low, and the rapid operation cannot be realized; second,: the pressurization is impossible; third,: the mechanical locking cannot be realized; mainly because of the lifting mechanisms of the existing products, a plurality of lifting mechanisms drive a mechanical structure to move up and down through an air cylinder or a motor screw rod, so that the running speed of the mechanisms is consistent with the speed of the air cylinder or the motor screw rod, and the speed cannot be increased; when the upper pressure is pressed down, the stability of the lower part can be controlled only by the force of the air cylinder or the motor screw rod, and the mechanical locking can not be realized; the jacking force of the lower mechanism can only reach the force of the air cylinder or the motor screw rod, and cannot be boosted; thus, a fast and stable operation cannot be achieved, and the cost of the mechanical structure is increased.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a novel lifting mechanism.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a novel elevating system, including the upper connecting rod and the lower connecting rod that bilateral symmetry set up, the upper connecting rod and the lower connecting rod of each side are rotated through the connecting rod axle head and the tail respectively and are connected, the upper end of connecting rod on each side is rotated with the top fixed plate respectively and is connected, the lower extreme and the bottom fixing base of lower connecting rod rotate and are connected, the middle part of connecting rod is rotated through the both ends of push-and-pull connecting rod and middle connecting rod respectively under each side, the bottom fixing base is provided with the drive arrangement who is used for promoting the middle connecting rod and reciprocates between the lower connecting rod.

Further, in order to make the upper and lower operation of lower connecting rod seat and bottom fixing base steady, the upper end of connecting rod on each side rotates with the top fixed plate through last connecting rod seat respectively and is connected, and the lower extreme of lower connecting rod rotates with the bottom fixing base through lower connecting rod seat respectively and is connected, and goes up connecting rod seat and top fixed plate vertical fixed connection, lower connecting rod seat and bottom fixing base vertical fixed connection.

Further, the driving device is one of an air cylinder, an oil cylinder or a motor screw rod, and can be selected according to the needs of customers.

Further, in order to improve stability, the upper connecting rod and the lower connecting rod on each side are multiple, the middle connecting rod is changed into a plate-shaped structure, namely, a three-dimensional supporting structure is formed by the multiple upper connecting rods and the lower connecting rods, so that the stability of lifting is effectively ensured, and if the upper connecting rod and the lower connecting rod are only bilaterally symmetrical, namely, a pair of pairs of upper connecting rods and the lower connecting rods can be combined with a guiding structure, such as a sliding rail, a guiding column and the like for use in a matched mode.

Further, the upper connecting rod seat and the lower connecting rod seat are both plate-shaped structures and are respectively connected with the corresponding upper connecting rod or lower connecting rod in a rotating way through connecting rod shafts.

Further, in order to achieve better self-locking effect, the lengths of the upper connecting rod and the lower connecting rod are the same, and when the distance between the top fixing plate and the bottom fixing seat is the largest, the upper connecting rod and the lower connecting rod are in a vertical state, and when the upper connecting rod and the lower connecting rod are in a vertical state, the stress of the upper connecting rod and the stress of the lower connecting rod are respectively concentrated on vertical straight lines at all sides, so that a more stable supporting structure is formed.

The connecting rods are connected through the connecting rod shafts, and an effective linkage supporting structure is formed through the control of the sizes of the connecting rods, so that the device has the functions of lifting, accelerating, pressurizing and mechanical locking; the stroke of the air cylinder or the motor screw rod can be effectively reduced, the size of the air cylinder or the torque of the motor is reduced, and when the pressure is pressed down on the upper part, the lifting mechanism is stable and can be mechanically locked without descending; the stability of equipment operation has been increased, simultaneously, the cost is also reduced, simple structure.

The utility model has the following advantages:

1. the quick lifting can be realized through quick linkage of the connecting rod structure;

2. the connecting rod structure has certain supporting capacity, and the lifting mechanism can bear higher impact pressure at a high point;

3. the synchronous lifting of each side is realized through a connecting rod structure, and the horizontal thrust generated in the lifting process of the lifting mechanism is eliminated;

4. the utility model adopts a connecting rod structure to lift, has supporting capability after reaching a certain angle, forms self-locking effect and has better self-locking performance than the air cylinder.

Drawings

The utility model will now be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of a descending structure of the present utility model;

fig. 2 is a schematic view of a front view of the ascending state of the present utility model.

Detailed Description

As shown in fig. 1-2, a novel lifting mechanism comprises an upper connecting rod 1 and a lower connecting rod 2 which are symmetrically arranged left and right, the upper connecting rod 1 and the lower connecting rod 2 on each side are respectively connected in a head-tail rotation manner through a connecting rod shaft 3, the upper end of the upper connecting rod 1 on each side is respectively connected with a top fixing plate 4 in a rotation manner, the lower end of the lower connecting rod 2 is respectively connected with a bottom fixing seat 5 in a rotation manner, the middle part of the lower connecting rod 2 on each side is respectively connected with two ends of a middle connecting rod 7 in a rotation manner through a push-pull connecting rod 6, the lengths of the upper connecting rod 1 and the lower connecting rod 2 are identical, the upper connecting rod 1 and the lower connecting rod 2 are in a vertical state when the distance between the top fixing plate 4 and the bottom fixing seat 5 is the largest, the bottom fixing seat 5 is provided with a driving device for driving the middle connecting rod 7 to move up and down between the lower connecting rods 2, and the driving device can be one of a cylinder, an oil cylinder or a motor screw.

The upper ends of the upper connecting rods 1 on all sides are respectively connected with the top fixing plate 4 in a rotating way through the upper connecting rod seat 8, the lower ends of the lower connecting rods 2 are respectively connected with the bottom fixing seat 5 in a rotating way through the lower connecting rod seat 9, the upper connecting rod seat 8 is vertically and fixedly connected with the top fixing plate 4, the lower connecting rod seat 9 is vertically and fixedly connected with the bottom fixing seat 5, the upper connecting rod seat 8 and the lower connecting rod seat 9 are respectively in a plate-shaped structure, and the upper connecting rod seat 8 and the lower connecting rod seat 9 are respectively connected with the corresponding upper connecting rod 1 or the lower connecting rod 2 in a rotating way through the connecting rod shaft 3.

The upper connecting rod 1 and the lower connecting rod 2 on each side are multiple, and the middle connecting rod 7 is changed into a plate-shaped structure.

The working principle of the utility model is as follows: the mechanism can achieve the effect of increasing the stroke multiple through the corresponding size change of the middle connecting rod 7, the upper connecting rod 1, the lower connecting rod 2 and the push-pull connecting rod 6. (for example, the driving device is that the cylinder stroke 50 can drive the top fixing plate to move up and down by 90 or more), so that the device effectively increases the running speed, and in the starting state of upward movement of the lifting mechanism, the lifting mechanism has an acceleration function, and in the tail end of the stroke, the lifting mechanism has a deceleration function, and through the mutual relation among the three connecting rods, the upward pressure of a power source (such as a cylinder, a motor screw rod and other actuating elements with up and down movement modes) can be greatly increased, so that the supercharging effect is achieved.

The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this utility model, and are intended to be within the scope of this utility model.

Claims

1. The utility model provides a novel hoist mechanism, includes upper connecting rod (1) and lower connecting rod (2) that bilateral symmetry set up, its characterized in that: the upper connecting rod (1) and the lower connecting rod (2) on each side are respectively connected in a head-to-tail rotation mode through connecting rod shafts (3), the upper ends of the upper connecting rods (1) on each side are respectively connected with a top fixing plate (4) in a rotation mode, the lower ends of the lower connecting rods (2) are respectively connected with a bottom fixing seat (5) in a rotation mode, the middle parts of the lower connecting rods (2) on each side are respectively connected with the two ends of a middle connecting rod (7) in a rotation mode through push-pull connecting rods (6), the bottom fixing seats (5) are respectively provided with a driving device used for pushing the middle connecting rods (7) to move up and down between the lower connecting rods (2), the upper ends of the upper connecting rods (1) on each side are respectively connected with the top fixing plates (4) in a rotation mode through upper connecting rod seats (8), the lower ends of the lower connecting rods (2) are respectively connected with the bottom fixing seats (5) in a rotation mode, and the upper connecting rod seats (8) are fixedly connected with the top fixing plates (4) in a vertical mode, and the lower connecting rod seats (9) are fixedly connected with the bottom fixing seats (5) in a vertical mode.

2. A novel lifting mechanism as claimed in claim 1, wherein: the driving device is one of an air cylinder, an oil cylinder or a motor screw rod.

3. A novel lifting mechanism as claimed in claim 1, wherein: the upper connecting rod (1) and the lower connecting rod (2) at each side are multiple, and the middle connecting rod (7) is changed into a plate-shaped structure.

4. A novel lifting mechanism as claimed in claim 1, wherein: the upper connecting rod seat (8) and the lower connecting rod seat (9) are of plate-shaped structures and are respectively connected with the corresponding upper connecting rod (1) or lower connecting rod (2) in a rotating way through connecting rod shafts (3).

5. A novel lifting mechanism as claimed in claim 1, wherein: the lengths of the upper connecting rod (1) and the lower connecting rod (2) are the same, and the upper connecting rod (1) and the lower connecting rod (2) are in a vertical state when the distance between the top fixing plate (4) and the bottom fixing seat (5) is the largest.