CN211156919U

CN211156919U - Pulley positioning mechanism of overhead rail shifting machine

Info

Publication number: CN211156919U
Application number: CN201921718506.0U
Authority: CN
Inventors: 吴康; 支宏法
Original assignee: Hi Fortune Health Products Co ltd
Current assignee: Hi Fortune Health Products Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-08-04
Anticipated expiration: 2029-10-14

Abstract

A pulley positioning mechanism of a top rail shifting machine comprises a bottom plate, wherein a rotating cam, a stop block and a lifting plate are arranged on one side of the bottom plate, a driving motor is arranged on the other side of the bottom plate, an output shaft of the driving motor penetrates through the bottom plate to be connected with the rotating cam, a round convex block is arranged on the rotating cam, one end of the lifting plate is in lap joint with the round convex block, the round convex block abuts against the lower portion of one end of the lifting plate, meanwhile, the other end of the lifting plate is fixedly connected with the stop block through a rotating shaft, and a raised clamping hook is arranged below the stop block; the pulley positioning mechanism designed by the scheme has the main function of accurately positioning the pulley mechanism in the track, ensures that the pulley mechanism can be accurately butted with the contact device at the fixed position of the track, and ensures the smooth operation of the sky-rail shifting system.

Description

Pulley positioning mechanism of overhead rail shifting machine

Technical Field

The utility model belongs to the technical field of the sky rail removes machine, concretely relates to pulley positioning mechanism of sky rail machine of shifting.

Background

In the clinical nursing work, the patients who can not take care of themselves in long-term bed rest life are very easy to cause bedsore due to long-term compression of local tissues and blood circulation disorder, and serious consequences can be caused if the patients are not prevented and nursed in time. Effective nursing measures are taken to change the body position and shift at regular time, so that a patient feels comfortable, complications such as weighing pneumonia, joint contracture and pressure sore are reduced, the recovery of an organism immune mechanism is promoted, the nursing risk is reduced better, and the occurrence of nursing accidents is prevented.

Common displacement aids: 1. a body position pad: the bed-ridden old people can use the wheelchair when the position of the bed-ridden old people is adjusted, and can use the wheelchair when the posture of the bed-ridden old people is unstable. 2. Shifting a machine: the shifting machine is a professional shifting lifter and can provide a flexible moving solution for the old in various nursing environments. In nursing environments such as hospital, old nursing center, asylum for the aged, family nursing center, private residence, all can use the machine of shifting to remove and transport patient to protection old person and nursing staff avoid because the danger that the old person of manual transport brought. 3. Sky rail shift system: the sky rail shift system is the most advanced integral auxiliary shift transfer system at present. The whole design is completed in the reconstruction of new wards and new medical institutions. The sky rail displacement system consists of five parts, namely a rail, a turntable, a host, a hanger and a hanging bag.

In the sky rail shift system, some fixed electric equipment needs to be arranged at a certain position above the track, such as a turntable, so that the normal use of the sky rail shift system is ensured, the fixed electric equipment needs to provide electronic support, in order to avoid the situation that the whole system is high in cost because each fixed electric equipment is provided with a power supply, a conductive contact device can be arranged on the track at the fixed electric equipment, when a pulley mechanism runs to the conductive contact device, the electric conduction is realized, so that the electric power of the power supply in the mobile crane can be transmitted to the fixed electric equipment for use, the method is safe and reliable, the structure is simple, and the cost can be reduced; however, in the practical application process, the pulley mechanism drives the mobile crane to move in the track, and the conductive contact device is fixedly arranged in the track, so that the technical problem that the pulley mechanism cannot be accurately moved to the position below the electrical contact device to realize power conduction occurs.

Therefore, aiming at the technical problem, the pulley positioning mechanism of the sky-rail shifting machine is designed in the scheme, and the pulley mechanism can be accurately positioned in an auxiliary mode, so that the technical problem is effectively solved.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a pulley positioning mechanism of a sky rail shifting machine.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: the utility model provides a pulley positioning mechanism of sky rail machine of shifting, includes the bottom plate, be provided with rotating cam, dog and lift plate on one side face of bottom plate, be provided with driving motor on the opposite side face of bottom plate, driving motor's output shaft passes the bottom plate with rotating cam connects, be provided with the round convex block on the rotating cam, the lift plate one end with the round convex block overlap joint, the round convex block supports the below of lift plate one end, simultaneously the other end of lift plate through a pivot with dog fixed connection, the below of dog is provided with bellied pothook.

Preferably, the output shaft of the driving motor is a D-shaped shaft, a clamping groove is formed in the plane of the D-shaped shaft, a transmission pin is arranged inside the rotating cam, and the head of the transmission pin is clamped in the clamping groove.

Preferably, the bottom plate is provided with two limit switches, namely a first limit switch and a second limit switch, the first limit switch is located on the left side connected with the cam, and the second limit switch is located on the upper side of the stop block.

Preferably, four supporting columns are correspondingly arranged at four corners of the bottom plate, a cover plate is arranged above the bottom plate, and the cover plate is connected with the supporting columns.

Preferably, a locking screw is provided at an intermediate portion of the lifting plate and the stopper.

The structural features of the above solution are explained as follows:

the pulley positioning mechanism of the sky-rail shifting machine designed by the scheme has the following specific working principle: when the pulley mechanism needs to move forwards again, the driving motor rotates clockwise, the round convex block on the rotating cam lifts one end of the lifting plate and the other end of the lifting plate is fixedly connected with the stop block through a rotating shaft, synchronous movement of the stop block and the lifting plate is realized, so that the stop hook at the lower half part of the stop block rises upwards, the stop hook rises to stop the pulley mechanism, and the pulley mechanism can move forwards; in addition, the structure can also realize the function of anti-blocking, when the pulley mechanism moves forwards, the clamping hook can be propped against by the pulley mechanism and cannot fall down, and when the pulley mechanism leaves completely, the clamping hook can fall down completely, so that the clamping hook is prevented from being blocked and the system fault is avoided when the pulley mechanism needs to move.

Because the rotating cam is sleeved on the motor output shaft, if the friction force between the motor output shaft and the rotating cam is insufficient, the motor output shaft and the rotating cam generate relative movement, the condition that the rotating cam does not rotate along with the output shaft can easily occur, so that the motor output shaft is arranged into a D-shaped shaft, a pin is arranged in the rotating cam to be used as a transmission part, and the pin is fixedly connected with the D-shaped shaft through a clamping groove of the D-shaped shaft, so that the condition can be effectively avoided.

The effect of two limit switches is when the pothook on the dog removed to target in place, guarantees driving motor stall, and when the pothook fell down completely, one side of rotatory cam can contact with the tablet on the first limit switch, controls driving motor stall, and when the pothook rose completely, the dog can contact with the tablet on the second limit switch, controls driving motor stall.

The cover plate can effectively protect the parts inside the positioning mechanism and prolong the service life of the whole positioning mechanism.

The locking screw is used for increasing the fixity between the lifting plate and the stop block and ensuring that the lifting plate and the stop block can move synchronously.

The utility model has the advantages that: the pulley positioning mechanism of this scheme design's main effect carries out the accurate positioning to the pulley mechanism in the track, guarantees that pulley mechanism can dock with the contact device accuracy that is located track fixed position, and device overall structure is simple, and convenient to use is swift, and the location is accurate, possesses the anti-sticking function simultaneously, guarantees the smooth operation of sky rail shift system, has very high practicality.

Drawings

Fig. 1 is a schematic structural view of a pulley positioning mechanism.

Fig. 2 is an overall appearance view of the pulley positioning mechanism.

Fig. 3 is a schematic structural diagram of a pulley positioning mechanism in a sky-rail system.

Fig. 4 is a schematic view of the operation of the pulley positioning mechanism with the hook lifted.

Fig. 5 is a schematic view of the operation of the pulley positioning mechanism for lowering the hook.

In the above drawings, a bottom plate 1, a rotating cam 2, a stop 3, a lifting plate 4, a driving motor 5, a round boss 6, a rotating shaft 7, a hook 8, a first limit switch 9, a second limit switch 10, a support column 11, a locking screw 12, a cover plate 13, a D-shaped shaft 14, a pin 15, a conductive contact device 16, a pulley mechanism 17 and a positioning mechanism 18.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 5. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Example (b): as shown in fig. 1, a pulley positioning mechanism of a sky-rail shifting machine comprises a bottom plate 1, a rotating cam 2, a stop block 3 and a lifting plate 4 are arranged on one side of the bottom plate 1, a driving motor 5 is arranged on the other side of the bottom plate 1, an output shaft of the driving motor 5 penetrates through the bottom plate 1 and is connected with the rotating cam 2, a round convex block 6 is arranged on the rotating cam 2, one end of the lifting plate 4 is in lap joint with the round convex block 6, the round convex block 6 abuts against the lower part of one end of the lifting plate 4, meanwhile, the other end of the lifting plate 4 is fixedly connected with the stop block 3 through a rotating shaft 7, and a raised hook 8 is arranged below the stop block 3; the pulley positioning mechanism of the sky-rail shifting machine designed by the scheme has the following specific working principle: as shown in fig. 4, in the initial state of the positioning mechanism 18, the hook 8 below the stopper 3 is released; as shown in fig. 3, the whole positioning mechanism is fixedly arranged beside the conductive contact device 16, and the pulley mechanism 17 is provided with a projection corresponding to the hook 8, when the pulley mechanism 17 moves to the position right below the conductive contact device 16 on the track, the hook 8 can directly block the pulley mechanism 17, so as to realize the accurate positioning of the pulley mechanism 17, when the pulley mechanism 17 needs to move forward again, the driving motor 5 rotates forward, the driving motor 5 drives the rotating cam 2 to rotate clockwise, the round convex block 6 on the rotating cam 2 lifts one end of the lifting plate 4 to ascend, the other end of the lifting plate 4 is fixedly connected with the stop block 3 through a rotating shaft 7 to realize the synchronous movement of the stop block 3 and the lifting plate 4, so that the hook 8 at the lower half part of the block 3 is lifted upwards, as shown in fig. 5, the hook 8 is lifted to stop the pulley mechanism 17, and the pulley mechanism 17 can move forwards; in addition, the design of the structure can also realize the function of anti-blocking, when the pulley mechanism 17 moves forwards, the clamping hook 8 can be supported by the pulley mechanism 17 and can not fall down, and when the pulley mechanism 17 leaves completely, the clamping hook 8 can fall down completely, so that the clamping hook 8 is prevented from being blocked and the system fault is avoided when the pulley mechanism 17 needs to move.

The preferred embodiment is as follows:

as shown in fig. 5, the output shaft of the driving motor 5 is a D-shaped shaft 14, a clamping groove is formed on the plane of the D-shaped shaft 14, a transmission pin 15 is arranged inside the rotating cam 2, and the head of the transmission pin 15 is clamped in the clamping groove; because the rotating cam 2 is established on the motor output shaft, if the frictional force between motor output shaft and the rotating cam 2 is not enough, both produce relative movement, the condition that the rotating cam 2 does not follow the output shaft and rotate together appears very easily, so set the motor output shaft into D word axle 14, and set up pin 15 as the driving medium in rotating cam 2 inside, draw-in groove through D word axle 14 with pin 15 and D word axle 14 fixed connection, can avoid above-mentioned condition effectively like this.

As shown in fig. 4 and 5, the two limit switches are used for ensuring that the driving motor 5 stops rotating when the hook 8 on the stopper 3 moves in place, when the hook 8 completely falls down, one side of the rotating cam 2 contacts with the sensing plate on the first limit switch 9 to control the driving motor 5 to stop rotating, and when the hook 8 completely rises, the stopper 3 contacts with the sensing plate on the second limit switch 10 to control the driving motor 5 to stop rotating.

As shown in fig. 2, four supporting columns 11 are correspondingly arranged at four corners of the bottom plate 1, a cover plate 13 is arranged above the bottom plate 1, and the cover plate 13 is connected with the supporting columns 11; the cover plate 13 can effectively protect the internal components of the positioning mechanism and prolong the service life of the whole positioning mechanism.

A locking screw 12 is arranged at the middle part of the lifting plate 4 and the stop block 3; the locking screw 12 is used for increasing the fixing property between the lifting plate 4 and the stop block 3 and ensuring that the lifting plate and the stop block can move synchronously.

The beneficial effect of this embodiment does: the pulley positioning mechanism of sky rail machine of shifting has been designed to this scheme, can carry out accurate assistance-localization real-time to pulley mechanism, can solve effectively and can't accurately remove pulley mechanism to the technical problem that electric power switches on in electric contact device below, and the effect is obvious.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a pulley positioning mechanism of sky rail machine of shifting which characterized in that: the lifting plate comprises a base plate, be provided with rotary cam, dog and lifting plate on one side face of bottom plate, be provided with driving motor on the opposite side face of bottom plate, driving motor's output shaft passes the bottom plate with rotary cam connects, be provided with the round convex block on the rotary cam, the one end of lifting plate with the round convex block overlap joint, the round convex block supports the below of lifting plate one end, simultaneously the other end of lifting plate through a pivot with dog fixed connection, the below of dog is provided with bellied pothook.

2. The pulley positioning mechanism of the overhead rail shifter according to claim 1, wherein: the output shaft of the driving motor is a D-shaped shaft, a clamping groove is formed in the plane of the D-shaped shaft, a transmission pin is arranged inside the rotating cam, and the head of the transmission pin is clamped in the clamping groove.

3. The pulley positioning mechanism of the overhead rail shifter according to claim 1, wherein: the bottom plate is provided with two limit switches which are respectively a first limit switch and a second limit switch, the first limit switch is positioned on the left side connected with the cam, and the second limit switch is positioned on the upper side of the stop block.

4. The pulley positioning mechanism of the overhead rail shifter according to claim 1, wherein: four corners of the bottom plate are correspondingly provided with four supporting columns, a cover plate is arranged above the bottom plate, and the cover plate is connected with the supporting columns.

5. The pulley positioning mechanism of the overhead rail shifter according to claim 1, wherein: and locking screws are arranged at the middle parts of the lifting plate and the stop block.