CN211226162U

CN211226162U - Manual lifting device

Info

Publication number: CN211226162U
Application number: CN201921578888.1U
Authority: CN
Inventors: 黄筱妍
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-08-11
Anticipated expiration: 2029-09-20

Abstract

The utility model relates to the technical field of lifting equipment, in particular to a manual lifting device, which comprises a moving vehicle, a bracket, a hand wheel, a lifting frame, a pulley block bracket and a lifting platform; the support vertical fixation is in on the locomotive, the middle part of support is equipped with the lead screw perpendicularly, the both ends of lead screw respectively through the bearing with both ends are connected about the support, and one side of locomotive is fixed with the control box, and the hand wheel passes through the bearing and installs the top of control box, the lower extreme of hand wheel are gone deep into the control box and are connected with the action wheel, and the outside of lead screw cover is fixed with the crane, and the top both sides of crane are fixed with two sprocket respectively, the one end and the control box fixed connection of chain, and the other end is walked around two sprocket with assembly pulley support fixed connection, hold up the platform and fix one side of assembly pulley support. The device has simple and light integral structure and very stable operation, and can be suitable for the adjustment of medical equipment.

Description

Manual lifting device

Technical Field

The utility model relates to a lifting means technical field especially relates to a manual hoisting device.

Background

The lifting mechanism for the medical display on the market at present usually adopts a mechanical coil spring type lifting mechanism, and the mechanical lifting mechanism generally consists of a coil spring, a vertical column and a lifting guide part. In practice, the spring force of the coil spring is different at different travel positions, and the spring is small in time, so that the lifting speed of the display is slow in time, cannot be adjusted and inconvenient to operate, and the requirement of human engineering is not met. In the lifting process of the display, the coil spring has high mechanical noise and is not suitable for being used in occasions needing to be kept quiet, such as hospitals and the like. Particularly, the product consistency is difficult to guarantee due to the large difference of the mechanical properties of each coil spring. The method has the defects of structural design rationality, manufacturing cost rationality and manufacturability, product installation process and long-term use reliability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned technique, and provide a manual hoisting device.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a manual lifting device, characterized in that: comprises a moving vehicle, a bracket, a hand wheel, a lifting frame, a pulley block bracket and a lifting platform; the support is vertically fixed on the moving vehicle, a lead screw is vertically arranged in the middle of the support, two ends of the lead screw are respectively connected with the upper end and the lower end of the support through bearings, an operation box is fixed on one side of the moving vehicle, the hand wheel is installed on the top of the operation box through bearings, the lower end of the hand wheel extends into the operation box and is connected with a driving wheel, the driving wheel is connected with a driven wheel fixed on the lead screw through a transmission chain, a lead screw sleeve is in sliding fit with the outside of the lead screw, a lifting frame is fixed on the outside of the lead screw sleeve, two chain wheels are respectively fixed on two sides of the top of the lifting frame, one end of each chain is fixedly connected with the operation box, the other end of each chain bypasses the two chain wheels and is fixedly connected with the pulley block support, two ends of the pulley block support are respectively connected with, the supporting platform is fixed on one side of the pulley block support.

Preferably, the pulley block comprises an upper pulley block, a lower pulley block, a left pulley block and a right pulley block, which are respectively clamped on the guide rail and are in sliding fit with the guide rail.

Preferably, a pushing handle is fixed on the rear side of the moving vehicle.

Preferably, the front part of the mobile vehicle extends forwards to form a wheel frame, and the front wheel is fixed on the wheel frame.

Preferably, the holding platform is used for fixing a display, a medical instrument or a detection instrument.

Compared with the prior art, this device overall structure is simple, light, utilizes the hand wheel to drive the lead screw, drives the crane removal again, drives through the chain sprocket at last and holds up the platform and reciprocate, overall structure firm very, need not to fix a position after the hand wheel rotation is adjusted, moves very steady, can be applicable to medical equipment's regulation.

Drawings

FIG. 1 is a side view of the present device;

fig. 2 is a cross-sectional view at a-a in fig. 1.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings. As shown in fig. 1 and 2, a manual lifting device comprises a moving vehicle 1, a bracket 2, a hand wheel 3, a lifting frame 4, a pulley block 5, a pulley block bracket 6 and a lifting platform 7; the support vertical fixation is in on the locomotive, the middle part of support is equipped with lead screw 8 perpendicularly, the both ends of lead screw respectively through the bearing with both ends are connected about the support, one side of locomotive is fixed with control box 9, the hand wheel passes through the bearing and installs the top of control box, the lower extreme of hand wheel are gone deep into the control box and are connected with action wheel 10, the action wheel passes through transfer chain 11 and fixes be connected from driving wheel 12 on the lead screw, rotate the hand wheel, the hand wheel drives the action wheel and rotates, and the action wheel passes through the transfer chain and drives from the driving wheel rotation to drive the lead screw and rotate.

The outside sliding fit of lead screw has lead screw cover 13, the outside of lead screw cover is fixed with the crane, when the lead screw rotates, drives the lead screw cover and reciprocates to drive the crane and reciprocate. Two chain wheels 14 are respectively fixed on two sides of the top of the lifting frame, one end of a chain 15 is fixedly connected with the operation box, the other end of the chain bypasses the two chain wheels and is fixedly connected with the pulley block support, when the lifting frame moves up and down, the chain wheels move up and down, and one end of the chain is fixed on the operation box, so that the end is fixed, and the other end drives the pulley block support to move up and down. The two ends of the pulley block support are respectively connected with the pulley block, the pulley block is in sliding fit with a guide rail 16 vertically arranged on the support, and the supporting platform is fixed on one side of the pulley block support. The sliding group support moves up and down, and two sides of the sliding group support are guided in the guide rail through the pulley block, so that the supporting platform moves up and down. Because the device adopts the lead screw for transmission, the positioning is not needed after the adjustment, and the lifting platform automatically stops after the hand wheel is loosened.

The utility model discloses in, the assembly pulley includes assembly pulley 17 about and assembly pulley 18, presss from both sides tight guide rail respectively and rather than sliding fit. The pulley block support can run more stably through the upper limit, the lower limit, the left limit and the right limit.

To facilitate the propulsion of the device. A push handle 19 is fixed on the rear side of the moving vehicle.

In order to make the device more stable, the front part of the moving vehicle is provided with a wheel frame 20 which extends forwards, and a front wheel 21 is fixed on the wheel frame. The supporting platform is positioned in the middle of the wheel frame and is more stable.

The supporting platform in the device is used for fixing a display, a medical instrument or a detection instrument. Commonly used medical devices may be secured to the lift platform.

In order to make the crane ascend and descend more stably, guide rods are arranged on two sides of the support, guide sleeves are slidably matched on the guide rods, and the guide sleeves are fixed on the crane.

This device overall structure is simple, light, utilizes the hand wheel to drive the lead screw, drives the crane removal again, drives through chain sprocket at last and holds up the platform and reciprocate, and overall structure is firm very, need not to fix a position after the hand wheel rotation is adjusted, moves very steadily, can be applicable to medical equipment's regulation.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A manual lifting device, characterized in that: comprises a moving vehicle, a bracket, a hand wheel, a lifting frame, a pulley block bracket and a lifting platform; the support is vertically fixed on the moving vehicle, a lead screw is vertically arranged in the middle of the support, two ends of the lead screw are respectively connected with the upper end and the lower end of the support through bearings, an operation box is fixed on one side of the moving vehicle, the hand wheel is installed on the top of the operation box through bearings, the lower end of the hand wheel extends into the operation box and is connected with a driving wheel, the driving wheel is connected with a driven wheel fixed on the lead screw through a transmission chain, a lead screw sleeve is in sliding fit with the outside of the lead screw, a lifting frame is fixed on the outside of the lead screw sleeve, two chain wheels are respectively fixed on two sides of the top of the lifting frame, one end of each chain is fixedly connected with the operation box, the other end of each chain bypasses the two chain wheels and is fixedly connected with the pulley block support, two ends of the pulley block support are respectively connected with, the supporting platform is fixed on one side of the pulley block support.

2. The manual lifting device of claim 1, wherein: the pulley block comprises an upper pulley block, a lower pulley block, a left pulley block and a right pulley block, which are respectively clamped on the guide rail and are in sliding fit with the guide rail.

3. The manual lifting device of claim 1, wherein: a pushing handle is fixed on the rear side of the moving vehicle.

4. The manual lifting device of claim 1, wherein: the front part of the moving vehicle extends forwards to be provided with a wheel frame, and the front wheel is fixed on the wheel frame.

5. The manual lifting device of claim 1, wherein: the supporting platform is used for fixing a display, a medical instrument or a detection instrument.