CN210214456U

CN210214456U - Hand-operated mechanism of standby descending system

Info

Publication number: CN210214456U
Application number: CN201920974043.8U
Authority: CN
Inventors: Wanrong Yu; 余万荣; Jian Liu; 刘建; Zejun Wang; 王泽军; Xukai Jin; 金徐凯
Original assignee: Shenzhen Shengshi Elevator Co Ltd
Current assignee: Shenzhen Shengshi Elevator Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-03-31
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a hand-operated mechanism of a standby descending system, which comprises a square shaft and a connecting sleeve which is in sliding connection with the square shaft, wherein one end of the square shaft is provided with a handle and a folding handle which is arranged on the handle, the other end of the square shaft is provided with a limiting part, one end of the connecting sleeve is provided with a bearing sleeve which is in rotating connection with the connecting sleeve, the other end of the connecting sleeve is provided with a chain wheel component, a bearing is arranged between the connecting sleeve and the bearing sleeve, the end surface of the handle is provided with a first strong magnet which is used for adsorbing the connecting sleeve, and the end surface of the chain wheel; the handle is pulled outwards through the folding handle, the square shaft and the limiting part are driven to move relative to the connecting sleeve together until the limiting part is adsorbed by the second strong magnet, and the handle is rotated to drive the square shaft, the connecting sleeve and the chain wheel assembly to rotate so as to drive the transmission system to move. The utility model discloses a hand mechanism of system of falling is equipped with, not only simple structure, the cost is lower, and stability and security are higher moreover.

Description

Hand-operated mechanism of standby descending system

Technical Field

The utility model relates to an elevator technical field especially relates to a hand mechanism of system of falling is equipped with.

Background

Nowadays, the elevator is inseparable from our life, and people can not leave the elevator when going out, working and the like. In long-term use, the elevator has the problems of inconvenience and even threatens the life safety of the user. For example, when the elevator has power failure, electrical fault, abnormal operation and the like, once people riding the elevator are trapped in the elevator, the people can only wait for rescue and cannot save themselves.

Some elevators in the prior art are also provided with a power supply standby landing system, but the standby landing system completely depends on electrical operation, the stability and the safety cannot be guaranteed, and the manufacturing cost is higher. Therefore, it is necessary to develop a hand-operated mechanism of a standby descending system with low cost, high stability and high safety.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a hand mechanism of a system of falling is prepared, which is not only simple in structure and low in cost, but also high in stability and safety.

The utility model discloses a following technical scheme realizes:

a hand-operated mechanism of a standby descending system comprises a square shaft and a connecting sleeve in sliding connection with the square shaft, wherein one end of the square shaft is provided with a handle and a folding handle arranged on the handle, the other end of the square shaft is provided with a limiting part, one end of the connecting sleeve is provided with a bearing sleeve in rotating connection with the connecting sleeve, the other end of the connecting sleeve is provided with a chain wheel component connected with a transmission system, a bearing is arranged between the connecting sleeve and the bearing sleeve, the end surface of the handle is provided with a first powerful magnet for adsorbing the connecting sleeve on the peripheral side of the square shaft, and the end surface of the chain wheel component is provided with a second; in an initial state, the connecting sleeve is positioned on one side of the square shaft close to the handle and is adsorbed with the first strong magnet; when the transmission system is in use, the handle is pulled outwards through the folding handle, the square shaft and the limiting part are driven to move relative to the connecting sleeve together until the limiting part is adsorbed to the second strong magnet, and the handle is rotated to drive the square shaft, the connecting sleeve and the chain wheel assembly to rotate so as to drive the transmission system to move.

Furthermore, the length of square shaft is greater than the length of adapter sleeve, and the adapter sleeve is provided with the square hole with square shaft matched with.

Furthermore, the outside of bearing housing is provided with the mount pad, bearing housing and mount pad fixed connection.

Furthermore, a proximity switch used for sensing the limiting part and a switch bracket used for mounting the proximity switch are arranged on the mounting seat.

Further, the folding handle is rotatably connected with the handle, and the handle is provided with a containing hole for containing the folding handle.

Furthermore, the number of the first powerful magnets is two, and the end face of the handle is provided with two first mounting grooves for mounting the first powerful magnets.

Further, the vertical distance between the first powerful magnet and the center line of the square shaft is smaller than the radius of the connecting sleeve.

Further, the chain wheel assembly comprises a chain wheel sleeved outside the connecting sleeve and a baffle plate used for fixing the chain wheel, and the baffle plate is fixedly connected with the connecting sleeve through a bolt.

Furthermore, the number of the second powerful magnets is two, and two second mounting grooves for mounting the second powerful magnets are formed in the outer side face of the baffle.

Furthermore, the number of the bearings is two, the two bearings are respectively arranged at two ends of the bearing sleeve, and the connecting sleeve is provided with elastic check rings at two ends of the bearing sleeve.

Compared with the prior art, the beneficial effects of the utility model reside in that:

by arranging the square shaft and the connecting sleeve in sliding connection with the square shaft, one end of the square shaft is provided with the handle and the folding handle arranged on the handle, the other end of the square shaft is provided with the limiting part, the end surface of the handle is provided with the first powerful magnet for adsorbing the connecting sleeve, and the end surface of the chain wheel component is provided with the technical means of the second powerful magnet for adsorbing the limiting part, so that the connecting sleeve is adsorbed with the first powerful magnet in the initial state, the connecting sleeve is prevented from being disengaged due to shaking, and the space is saved by arranging the folding handle; when the connecting sleeve is in use, the handle is pulled outwards through the folding handle, and the square shaft and the limiting piece are driven to move relative to the connecting sleeve together until the limiting piece is adsorbed to the second strong magnet, so that the connecting sleeve is prevented from moving axially in the movement process; the bearing sleeve is arranged at one end of the connecting sleeve and is rotationally connected with the connecting sleeve, the chain wheel assembly connected with the transmission system is arranged at the other end of the connecting sleeve, and a bearing is arranged between the connecting sleeve and the bearing sleeve, so that when the limiting part is adsorbed by the second strong magnet, the handle is rotated to drive the square shaft, the connecting sleeve and the chain wheel assembly to rotate, and then the transmission system is driven to move.

Drawings

Fig. 1 is a perspective view (initial state) of a hand-operated mechanism of a standby system according to an embodiment of the present invention;

fig. 2 is a perspective view (in use) of the hand-operated mechanism of the standby system in the embodiment of the present invention;

fig. 3 is a front view of the hand-operated mechanism of the standby system according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view of section AA in FIG. 3 (initial state);

fig. 5 is a cross-sectional view (in use) of the AA section in fig. 3.

In the figure: 10. a square shaft; 11. a handle; 111. an accommodation hole; 12. folding the handle; 13. a limiting member; 20. connecting sleeves; 30. a bearing housing; 31. a circlip; 40. a sprocket assembly; 41. a sprocket; 42. a baffle plate; 50. a bearing; 60. a first powerful magnet; 70. a second powerful magnet; 80. a mounting seat; 81. a proximity switch; 82. switch support.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The hand-operated mechanism of the standby system as shown in fig. 1-5 comprises a square shaft 10 and a connecting sleeve 20 slidably connected with the square shaft 10, wherein one end of the square shaft 10 is provided with a handle 11 and a folding handle 12 arranged on the handle 11, the other end of the square shaft 10 is provided with a limiting piece 13, one end of the connecting sleeve 20 is provided with a bearing sleeve 30 rotatably connected with the connecting sleeve 20, the other end of the connecting sleeve 20 is provided with a sprocket assembly 40 connected with a transmission system (not shown), a bearing 50 is arranged between the connecting sleeve 20 and the bearing sleeve 30, the end surface of the handle 11 is provided with a first strong magnet 60 for adsorbing the connecting sleeve 20 on the circumferential side of the square shaft 10, and the end surface of the sprocket assembly 40 is provided with a second strong magnet 70 for adsorbing; in an initial state, the connecting sleeve 20 is positioned on one side of the square shaft 10 close to the handle 11, and the connecting sleeve 20 is adsorbed to the first powerful magnet 60; when the transmission system is in use, the handle 11 is pulled outwards through the folding handle 12, and the square shaft 10 and the limiting part 13 are driven to move relative to the connecting sleeve 20 together until the limiting part 13 is adsorbed to the second strong magnet 70, and the handle 11 is rotated to drive the square shaft 10, the connecting sleeve 20 and the chain wheel assembly 40 to rotate, so that the transmission system is driven to move.

By arranging the square shaft 10 and the connecting sleeve 20 in sliding connection with the square shaft 10, one end of the square shaft 10 is provided with the handle 11 and the folding handle 12 arranged on the handle 11, the other end of the square shaft 10 is provided with the limiting part 13, the end surface of the handle 11 is provided with the first powerful magnet 60 for adsorbing the connecting sleeve 20, and the end surface of the chain wheel assembly 40 is provided with the second powerful magnet 70 for adsorbing the limiting part 13, the connecting sleeve 20 and the first powerful magnet 60 are adsorbed in an initial state, the connecting sleeve 20 is prevented from being disengaged due to shaking, and the arrangement of the folding handle 12 saves space; when the hand-operated mechanism is in use, the handle 11 is pulled outwards through the folding handle 12, and the square shaft 10 and the limiting piece 13 are driven to move relative to the connecting sleeve 20 together until the limiting piece 13 is adsorbed by the second strong magnet 70, so that the axial movement of the connecting sleeve 20 in the movement process is prevented, the hand-operated mechanism is prevented from shaking in the operation process, and the continuous stability of the operation of the mechanism is ensured; through set up rather than the bearing housing 30 of being connected of rotating at the one end of adapter sleeve 20, the other end of adapter sleeve 20 sets up the sprocket assembly 40 that is connected with transmission system, be provided with the technical means of bearing 50 between adapter sleeve 20 and the bearing housing 30 for when locating part 13 adsorbs mutually with second powerful magnet 70, rotate handle 11, with drive square shaft 10, adapter sleeve 20, sprocket assembly 40 rotates, and then drive transmission system motion, it is simple structure not only, the cost is lower, and stability and security are higher.

The strong magnet is neodymium iron boron magnet. Compared with ferrite magnets, alnico and samarium cobalt, the magnetic performance of the magnet exceeds that of other magnets greatly, and the neodymium iron boron magnet can absorb 640 times of the weight of the magnet, so the neodymium iron boron magnet is often called a powerful magnet.

In a preferred embodiment, the length of the square shaft 10 is greater than the length of the connection sleeve 20, and the connection sleeve 20 is provided with a square hole (not shown) matched with the square shaft 10. The square shaft 10 can move relative to the connecting sleeve 20 along the axial direction thereof, and when the square shaft 10 rotates, the connecting sleeve 20 can be driven to rotate together. Preferably, the number of the bearings 50 is two, the two bearings 50 are respectively located at two ends of the bearing housing 30, and the connecting sleeve 20 is provided with elastic collars 31 at two ends of the bearing housing 30. The arrangement of the bearing 50 reduces the friction force in the rotation process of the connecting sleeve 20 and improves the transmission efficiency.

In a preferred embodiment, a mounting seat 80 is provided outside the bearing housing 30, and the bearing housing 30 is fixedly connected to the mounting seat 80. The mounting base 80 is provided with a proximity switch 81 for sensing the limit piece 13 and a switch bracket 82 for mounting the proximity switch 81. Preferably, the proximity switch 81 is vertically installed, and is a normally open type, when a manual hand cranking action needs to be started, the handle 11 is pulled outwards, the second strong magnet 70 attracts the limiting piece 13 and contacts with the proximity switch 81, and the proximity switch 81 transmits a signal to the control system.

In a preferred embodiment, the folding handle 12 is rotatably coupled to the grip 11, and the grip 11 is provided with a receiving hole 111 for receiving the folding handle 12. When not in use, the folding handle 12 is accommodated in the accommodating hole 111 of the handle 11, which not only saves space, but also makes the structure more compact; when the folding handle 12 is used, the folding handle 12 is rotated outwards to be opened, and the folding handle 12 is pulled outwards, so that the second strong magnet 70 attracts the limiting piece 13, and then the folding handle 12 is rotated to drive the transmission system to move.

In a preferred embodiment, the number of first powerful magnets 60 is two, and two first mounting grooves (not shown) for mounting first powerful magnets 60 are provided on the end surface of handle 11. The two first powerful magnets 60 are arranged, so that the connection sleeve 20 is firmly adsorbed, and the connection sleeve 20 is prevented from being detached due to shaking. The vertical distance between the first powerful magnet 60 and the center line of the square shaft 10 is smaller than the radius of the connecting sleeve 20, so that the first powerful magnet 60 can be more effectively adsorbed to the connecting sleeve 20.

As a preferred embodiment, the sprocket assembly 40 includes a sprocket 41 sleeved outside the connecting sleeve 20 and a retainer 42 for fixing the sprocket 41, and the retainer 42 is fixedly connected to the connecting sleeve 20 by bolts. The chain wheel 41 is connected with a transmission system, so that the transmission is more stable.

In a preferred embodiment, the number of the second strong magnets 70 is two, and two second mounting grooves (not shown) for mounting the second strong magnets 70 are provided on the outer surface of the shutter 42. The two second powerful magnets 70 are arranged, so that the absorption of the limiting part 13 is firmer, the axial movement of the connecting sleeve 20 in the movement process is prevented, the shaking of the hand-operated mechanism in the operation process is caused, and the continuous stability of the mechanism is ensured.

The utility model discloses prepare for theory of operation of system's hand mechanism of falling: when the hand-operated mechanism of the standby descending system needs to be executed, the folding handle 12 rotates out from the accommodating hole 111 of the handle 11, the handle 11 is held and the square shaft 10 is pulled out forcibly, the second strong magnet 70 attracts the limiting piece 13 to position when the position point is approached, the proximity switch 81 is closed in contact with the limiting piece 13 to determine whether the square shaft is in place or not, then a signal is transmitted to the control system, the folding handle 12 is rotated to drive the square shaft 10 to rotate, and then the transmission system is driven to move to achieve the purpose of standby descending by hand-operated.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a hand mechanism of system of falling is equipped with which characterized in that: the connecting device comprises a square shaft and a connecting sleeve which is in sliding connection with the square shaft, wherein one end of the square shaft is provided with a handle and a folding handle arranged on the handle, the other end of the square shaft is provided with a limiting part, one end of the connecting sleeve is provided with a bearing sleeve which is in rotating connection with the connecting sleeve, the other end of the connecting sleeve is provided with a chain wheel component which is connected with a transmission system, a bearing is arranged between the connecting sleeve and the bearing sleeve, the end surface of the handle is provided with a first powerful magnet which is used for adsorbing the connecting sleeve on the peripheral side of the square shaft, and the end surface of the chain wheel component is provided with a second powerful magnet which is; in an initial state, the connecting sleeve is positioned on one side of the square shaft close to the handle and is adsorbed with the first strong magnet; during the user state, outwards stimulate through folding handle the handle, and drive the square shaft the locating part is relative together the adapter sleeve removes, until the locating part with the second powerful magnet adsorbs mutually, rotates the handle, in order to drive the square shaft the adapter sleeve sprocket component rotates, and then drives transmission system moves.

2. The hand-operated mechanism of the standby system as claimed in claim 1, wherein: the length of square shaft is greater than the length of adapter sleeve, the adapter sleeve be provided with square shaft matched with square hole.

3. The hand-operated mechanism of the standby system as claimed in claim 1, wherein: the bearing sleeve is characterized in that a mounting seat is arranged outside the bearing sleeve, and the bearing sleeve is fixedly connected with the mounting seat.

4. The hand-operated mechanism of the standby system as claimed in claim 3, wherein: the mounting base is provided with a proximity switch used for sensing the limiting part and a switch bracket used for mounting the proximity switch.

5. The hand-operated mechanism of the standby system as claimed in claim 1, wherein: the folding handle with the handle is rotated and is connected, the handle is provided with and is used for holding the accommodation hole of folding handle.

6. The hand-operated mechanism of the standby system as claimed in claim 1, wherein: the quantity of first powerful magnet is two, the terminal surface of handle is provided with two and is used for the installation first mounting groove of first powerful magnet.

7. The hand-operated mechanism of the standby system as claimed in claim 6, wherein: the vertical distance between the first powerful magnet and the central line of the square shaft is smaller than the radius of the connecting sleeve.

8. The hand-operated mechanism of the standby system as claimed in claim 1, wherein: the chain wheel assembly comprises a chain wheel sleeved outside the connecting sleeve and a baffle used for fixing the chain wheel, and the baffle is fixedly connected with the connecting sleeve through a bolt.

9. The hand-operated mechanism of the standby system according to claim 8, wherein: the quantity of second powerful magnet is two, the lateral surface of baffle is provided with two and is used for installing the second mounting groove of second powerful magnet.

10. The hand-operated mechanism of the standby system as claimed in claim 1, wherein: the number of the bearings is two, the two bearings are respectively located at two ends of the bearing sleeve, and the two ends of the bearing sleeve are respectively provided with an elastic retainer ring in the connecting sleeve.