CN216190149U

CN216190149U - Hydraulic pressure lift freight elevator protector

Info

Publication number: CN216190149U
Application number: CN202122333570.0U
Authority: CN
Inventors: 胡韶文; 陈良刚
Original assignee: Anhui Duoduo Technology Co ltd
Current assignee: Anhui Duoduo Technology Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-04-05
Anticipated expiration: 2031-09-26

Abstract

The utility model relates to the technical field of protection of lifting freight elevators, in particular to a hydraulic lifting freight elevator protection device which comprises a left upright post and a right upright post which are arranged at two sides of an elevator opening, wherein a transverse shaft is rotatably connected between the left upright post and the right upright post, a driven shaft is rotatably connected to the left upright post and below the transverse shaft through a bearing, a motor which is electrically connected with an elevator lifting control switch is fixedly installed on one side of the right upright post, which is far away from the left upright post, the driven shaft and an output shaft of the motor are in transmission connection with the transverse shaft through chains, and a protection door is fixedly connected between the chains. The elevator door protection device is full-automatic and high in safety, the motion state of the protection door is determined according to the operation state of the elevator, personnel operation is not needed, and the practicability is higher.

Description

Hydraulic pressure lift freight elevator protector

Technical Field

The utility model relates to the technical field of protection of lifting freight elevators, in particular to a hydraulic lifting freight elevator protection device.

Background

The hydraulic lifting goods elevator is a special hydraulic lifting platform for transporting goods in high rooms of buildings, and is mainly used for transporting goods up and down between various working floors.

The elevator mouth of a hydraulic lifting freight elevator which is common in the current market does not have a protection device, so that people easily enter the elevator shaft by mistake to cause a falling injury or an accident of being crushed by the elevator, and the safety is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the deficiencies of the prior art, it is an object of the present invention to provide a hydraulic lift freight elevator protection device to solve the above-mentioned problems of the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a hydraulic pressure lift freight transportation elevator protector, is including setting up left stand and the right stand in elevator mouth both sides, it is connected with the cross axle to rotate between left side stand and the right stand, the below that just is located the cross axle on the left side stand is rotated through the bearing and is connected with the driven shaft, fixed mounting has the motor with elevator lift control switch electric connection on the one side that left stand was kept away from to right stand, just all be connected through chain drive between the output shaft of driven shaft and motor and the cross axle, still fixedly connected with guard gate between the chain.

Optionally, one side that left side stand and right stand are close to each other still respectively fixed mounting prevent people photoelectric sensor and prevent people photoelectric reflecting plate, just prevent people photoelectric sensor and motor electric connection.

Optionally, the left upright post and the right upright post are fixedly connected with a top limit frame and a bottom limit frame which are used for limiting the protective door.

Optionally, the right side stand is close to on one side of left stand and is located between spacing and the bottom spacing of top from top to bottom in proper order fixed mounting have last limit switch two, last limit switch one and lower limit switch, just last limit switch two, last limit switch one and lower limit switch all with motor electric connection.

Optionally, a safety hook is fixedly mounted on one side, close to the right stand column, of the left stand column, the output end of the safety hook is fixedly connected with the top of the protective door, and an audible and visual alarm electrically connected with the motor is fixedly mounted on one side of the right stand column.

(III) advantageous effects

Compared with the prior art, the utility model provides a hydraulic lifting freight elevator protection device, which has the following beneficial effects: the motor is arranged to drive the protective door to do lifting motion, and the motor is electrically connected with the lifting control switch of the elevator, so that the motor can be automatically controlled to start when the running state of the elevator changes, and the protective door can be controlled to automatically stop moving when running to a specified position under the coordination of the upper limit switch II, the upper limit switch I and the lower limit switch, the safety is high, the moving state of the protective door is determined according to the running state of the elevator, personnel operation is not needed, and the practicability is higher.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention.

In the figure: 1. a left upright post; 2. a bearing; 3. a driven shaft; 4. a chain; 5. a human-proof photoelectric reflecting plate; 6. a protective door; 7. a safety catch; 8. a horizontal axis; 9. a top limiting frame; 10. an upper limit switch II; 11. an upper limit switch I; 12. a right upright post; 13. a lower limit switch; 14. a motor; 15. a bottom limiting frame; 16. a human-protected photoelectric sensor; 17. an audible and visual alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a hydraulic lifting freight elevator protection device comprises a left upright post 1 and a right upright post 12 which are arranged at two sides of an elevator entrance, a cross shaft 8 is rotatably connected between the left upright post 1 and the right upright post 12, a driven shaft 3 is rotatably connected on the left upright post 1 and below the cross shaft 8 through a bearing 2, a motor 14 which is electrically connected with an elevator lifting control switch is fixedly arranged on one side of the right upright post 12 away from the left upright post 1, the output shafts of the driven shaft 3 and the motor 14 are in transmission connection with the cross shaft 8 through chains 4, chain wheels are sleeved on the output shafts of the driven shaft 3 and the motor 14 and the periphery of the cross shaft 8, the chains 4 are meshed with the chain wheels, a protection door 6 is also fixedly connected between the chains 4, a top limit frame 9 and a bottom limit frame 15 which are used for limiting the protection door 6 are fixedly connected on one side of the left upright post 1 and one side of the right upright post 12 which are close to each other, the protection door 6 moves between the top limit frame 9 and the bottom limit frame 15, an upper limit switch II 10, an upper limit switch I11 and a lower limit switch 13 are fixedly mounted on one side, close to the left upright post 1, of the right upright post 12 and located between the top limiting frame 9 and the bottom limiting frame 15 from top to bottom in sequence, the upper limit switch II 10, the upper limit switch I11 and the lower limit switch 13 are electrically connected with a motor 14, the motor 14 is controlled to stop running when the upper limit switch II 10, the upper limit switch I11 and the lower limit switch 13 are triggered, and the problem that the protective door 6 is not stopped timely can be effectively solved by arranging the upper limit switch II 10 and the upper limit switch I11;

the side, close to each other, of the left upright post 1 and the right upright post 12 is also fixedly provided with a man-proof photoelectric sensor 16 and a man-proof photoelectric reflecting plate 5 respectively, the man-proof photoelectric sensor 16 is electrically connected with the motor 14, and the man-proof photoelectric sensor 16 immediately controls the motor 14 to stop running when detecting that a person is at the bottom of the protective door 6;

fixed mounting has safety hook 7 on one side that left stand 1 is close to right stand 12, and the output of safety hook 7 and the top fixed connection of guard gate 6, safety hook 7 is the anti-falling device that has on the market, and guard gate 6 tenesmus when safety hook 7 prevents 4 fracture chains from causing casualties, and one side of right stand 12 is still fixed mounting have with 14 electric connection's of motor audible-visual annunciator 17, and when guard gate 6 operation, audible-visual annunciator 17 automatic alarm that sends plays the warning effect to personnel.

The working principle is as follows: taking a hydraulic lifting freight elevator with two floors as an example, a set of protective device is respectively arranged at the elevator mouths of the first floor and the second floor;

when the hydraulic lifting freight elevator stops at the first floor, the lifting button of the elevator is pressed, the protective door 6 of the first floor protective device moves downwards under the driving of the motor 14 and the chain 4, when the protective door 6 is in contact with the lower limit switch 13, the protective door 6 stops moving at the lowest position of the protective door to finish the door closing action of the protective door 6 of the first floor protective device, the elevator starts to ascend, when the elevator ascends to the highest position of the second floor to stop moving, the protective door 6 of the second floor protective device starts to ascend, when the protective door 6 is in contact with the first upper limit switch 11, the protective door 6 stops ascending to finish the opening action of the protective door 6 of the second floor protective device, and personnel can enter the freight elevator to carry goods;

when the hydraulic lifting freight elevator stops at the second floor, the elevator descending button is pressed, the protective door 6 of the second floor protective device moves downwards firstly under the driving of the motor 14 and the chain 4, when the protective door 6 is in contact with the lower limit switch 13, the protective door 6 stops moving at the lowest position of the protective door, the door closing action of the protective door 6 of the second floor protective device is completed, the elevator starts to descend, when the elevator descends to the lowest position of the first floor, the elevator stops moving, the protective door 6 of the first floor protective device starts to ascend, when the protective door 6 is in contact with the first upper limit switch 11, the protective door 6 stops ascending, the opening action of the protective door 6 of the first floor is completed, and a person can enter the freight elevator to carry goods.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydraulic pressure lift freight elevator protector, is including setting up left stand (1) and right stand (12) in elevator mouth both sides, its characterized in that: rotate between left side stand (1) and right stand (12) and be connected with cross axle (8), the below that just is located cross axle (8) on left side stand (1) rotates through bearing (2) and is connected with driven shaft (3), fixed mounting has motor (14) with elevator lift control switch electric connection on the one side of left stand (1) is kept away from in right side stand (12), just all be connected through chain (4) transmission between the output shaft of driven shaft (3) and motor (14) and cross axle (8), still fixedly connected with guard gate (6) between chain (4).

2. A hydraulic lift freight elevator protection device according to claim 1, characterized in that: one side that left side stand (1) and right stand (12) are close to each other still respectively fixed mounting prevent people photoelectric sensor (16) and prevent people photoelectric reflecting plate (5), just prevent people photoelectric sensor (16) and motor (14) electric connection.

3. A hydraulic lift freight elevator protection device according to claim 1, characterized in that: the protective door is characterized in that one side, close to each other, of the left upright post (1) and the right upright post (12) is fixedly connected with a top limiting frame (9) and a bottom limiting frame (15) which are used for limiting the protective door (6).

4. A hydraulic lift freight elevator protection device according to claim 3, characterized in that: right side stand (12) are close to on one side of left stand (1) and are located between spacing (9) in top and the spacing (15) in bottom from top to bottom in proper order fixed mounting have last limit switch two (10), last limit switch (11) and lower limit switch (13), just last limit switch two (10), last limit switch (11) and lower limit switch (13) all with motor (14) electric connection.

5. A hydraulic lift freight elevator protection device according to claim 1, characterized in that: fixed mounting has safety hook (7) on one side that left side stand (1) is close to right stand (12), just the output of safety hook (7) and the top fixed connection of guard gate (6), one side of right side stand (12) is fixed mounting still have audible-visual annunciator (17) with motor (14) electric connection.