CN210558757U - Elevator rope breakage detection device - Google Patents
Elevator rope breakage detection device Download PDFInfo
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- CN210558757U CN210558757U CN201921187752.8U CN201921187752U CN210558757U CN 210558757 U CN210558757 U CN 210558757U CN 201921187752 U CN201921187752 U CN 201921187752U CN 210558757 U CN210558757 U CN 210558757U
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Abstract
The utility model relates to an elevator rope detects technical field, specifically is an elevator rope breakage detection device, including the frame, the up end of frame passes through screw fixed mounting at the lower terminal surface of roof, and the lower terminal surface intermediate position of frame is provided with limit switch perpendicularly, and both ends all weld perpendicularly have the auxiliary stand about the lower terminal surface of frame, and beneficial effect is: the utility model realizes the installation of the rope in the detection device by arranging three fixed pulleys which are mutually matched, and further utilizes the characteristic of tensile extension of the rope to ensure that the sliding main support is descended and separated from the contact of the switch, thereby realizing the timely stop of the elevator; through the reset action that utilizes the spring and the gravity of main support self, control the contact between limit switch and the main support, realized intelligent detection control's mesh, and then improved the security of elevator operation.
Description
Technical Field
The utility model relates to an elevator rope detects technical field, specifically is an elevator detection device that restricts absolutely.
Background
The elevator is a vertical elevator powered by an electric motor, and is provided with a box-shaped nacelle for riding people or carrying goods in a multi-story building, and is also stepped, and a step plate is arranged on a track for continuous operation.
The elevator needs to be stretched by a rope in the running process, the rope is abraded and further broken in the repeated stretching process of the rope, and a large safety accident is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an elevator detection device that restricts absolutely to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an elevator rope breakage detection device comprises a rack, wherein the upper end face of the rack is fixedly arranged on the lower end face of a top plate through screws, a limit switch is vertically arranged in the middle of the lower end face of the rack, auxiliary supports are vertically welded at the left end and the right end of the lower end face of the rack, a pair of vertical columns which are symmetrical to each other are respectively arranged on the left side and the right side of the limit switch, a main support is vertically inserted into the lower end face of each vertical column, a first fixed pulley and a second fixed pulley are rotatably arranged at the lower end of each auxiliary support, a pressing plate is arranged at the upper end of the main support, a main pulley is rotatably arranged at the lower end of the main support, a rope is wound on the lower end arc profile of the main pulley, the right side of the rope penetrates through the upper end arc profile of the second fixed pulley, the left side of the rope penetrates through the, the left end and the right end of the upper end face of the pressing plate are vertically welded with connecting rods, and the connecting rods are inserted into the lower end face of the stand column.
Preferably, the first fixed pulley and the second fixed pulley are respectively located on two sides of the main pulley, the positions of the first fixed pulley and the second fixed pulley, which are far away from the main pulley, are the same, and the first fixed pulley and the second fixed pulley are located at the upper end of the main pulley.
Preferably, the right end of the rope is provided with a first free end, the left side of the rope is provided with a second free end, the first free end is connected with an elevator hoisting device, and the second free end is vertically connected with an elevator car downwards.
Preferably, the lower end of the upright post is provided with a telescopic inner cavity, the upper end of the connecting rod is inserted in the telescopic inner cavity in a sliding manner, the upper end of the connecting rod is provided with a limiting block, and the outer wall of the middle end of the connecting rod is sleeved with a spring.
Preferably, the upper end of the spring abuts against the lower end face of the upright post, and the lower end of the spring abuts against the upper end face of the pressing plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model realizes the installation of the rope in the detection device by arranging three fixed pulleys which are mutually matched, and further utilizes the characteristic of tensile extension of the rope to ensure that the sliding main support is descended and separated from the contact of the switch, thereby realizing the timely stop of the elevator;
2. the utility model discloses an utilize the reset action of spring and the gravity of main support self, control the contact between limit switch and the main support, realized the mesh of intellectual detection system control, and then improved the security of elevator operation.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of the position a of the present invention.
In the figure: 1-frame, 2-top plate, 3-screw, 4-limit switch, 5-upright post, 6-main bracket, 7-main pulley, 8-auxiliary bracket, 9-first fixed pulley, 10-second fixed pulley, 11-rope, 12-first free end, 13-second free end, 14-elevator car, 15-spring, 16-limit block, 17-telescopic inner cavity, 18-pressure plate and 19-connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution:
the utility model provides an elevator detection device that restricts absolutely, includes frame 1, and the up end of frame 1 passes through screw 3 fixed mounting at the lower terminal surface of roof 2, realizes the fixed mounting of frame 1.
The left end and the right end of the lower end face of the rack 1 are both vertically welded with the auxiliary support 8, the lower end of the auxiliary support 8 is rotatably provided with a first fixed pulley 9 and a second fixed pulley 10, and the extension direction of a rope 11 is changed by utilizing the first fixed pulley 9 and the second fixed pulley 10.
The lower terminal surface intermediate position of frame 1 is provided with limit switch 4 perpendicularly, and limit switch 4's the left and right sides is provided with a pair of stand 5 of mutual symmetry respectively, and the lower terminal surface of stand 5 is pegged graft perpendicularly has main support 6, and main pulley 7 is installed in the lower extreme rotation of main support 6, utilizes the atress condition control main support 6 of main pulley 7 to go up and down highly, and then control main support 6 upper end and limit switch 4's contact, utilizes limit switch 4 to connect elevator operation circuit for the switch of control elevator.
First fixed pulley 9 and second fixed pulley 10 are located the both sides of main pulley 7 respectively, and first fixed pulley 9 and second fixed pulley 10 are the same apart from main pulley 7's position, first fixed pulley 9 and second fixed pulley 10 are located the upper end of main pulley 7, the lower extreme circular arc profile of main pulley 7 twines has rope 11, the upper end circular arc profile of second fixed pulley 10 is passed on the right side of rope 11, and the upper end circular arc outline of first fixed pulley 9 is passed on the left side of rope 11, utilize three fixed pulley of mutually supporting, make main pulley 7 receive ascending effort all the time at the lift in-process.
A first free end 12 is arranged at the right end of the rope 11, a second free end 13 is arranged at the left side of the rope 11, the first free end 12 is connected with an elevator hoisting device, the second free end 13 is vertically and downwards connected with an elevator car 14, the second free end 13 is downwards stretched by the gravity of the elevator car 14 in the descending process, and at the moment, the main pulley 7 is upwards pulled under the action of the first fixed pulley 9 at the middle section of the rope 11; during the ascent, the first free end 12 is stretched by the elevator hoist, and the main sheave 7 is subjected to an upward tension by the second fixed sheave 10.
The upper end of the main bracket 6 is provided with a pressing plate 18, and the middle position of the upper end surface of the pressing plate 18 is contacted with the lower end of the limit switch 4 under the stretching of the upward acting force of the main pulley 7.
The left end and the right end of the upper end surface of the pressure plate 18 are vertically welded with connecting rods 19, the connecting rods 19 are inserted into the lower end surface of the upright post 5, the lower end of the upright post 5 is provided with a telescopic inner cavity 17, and the up-and-down telescopic action of the main bracket 6 is realized by utilizing the movement of the connecting rods 19 in the telescopic inner cavity 17
The upper end of connecting rod 19 slides and pegs graft in flexible inner chamber 17, and the upper end of connecting rod 19 is provided with stopper 16, utilizes stopper 16 joint in flexible inner chamber 17, and then prevents that main support 6 from droing from the flexible inner chamber 17 of stand 5, has improved the security performance.
The outer wall of the middle end of the connecting rod 19 is sleeved with a spring 15, the upper end of the spring 15 abuts against the lower end face of the upright post 5, and the lower end of the spring 15 abuts against the upper end face of the pressing plate 18. The spring 15 is used for buffering the pulling force of the upward movement of the pressure plate 18, and the pressure plate 18 is prevented from colliding with the upright post 5.
The working principle is as follows: in the descending process of the elevator, the elevator winding device enables the rope 11 to be uncoiled and extended, the rope 11 is subjected to the gravity of the elevator car 14 to cause the second free end 13 to be stretched downwards, and at the moment, the middle section of the rope 11 is changed to be stressed reversely under the action of the first fixed pulley 9, so that the main pulley 7 is subjected to upward tension; during the ascent of the elevator, the hoisting machine of the elevator winds up the rope 11 so that the first free end 12 is stretched outwards and the right side of the main sheave 7 is subjected to an upward pulling force by the second fixed sheave 10.
Utilize three fixed pulley of mutually supporting for main pulley 7 receives ascending effort all the time at the lift in-process, and then makes main support 6 upward movement, drives clamp plate 18 and limit switch 4 contact, utilizes limit switch 4 to connect the elevator operation circuit for the switch of control elevator, spring 15 compression this moment, connecting rod 19 pegs graft in flexible inner chamber 17.
When the rope is broken, the rope 11 firstly deforms, and due to the fact that the rope 11 is under the action of tension, the deformation of the rope 11 is tensile deformation, the length of the rope 11 is lengthened, the instant stress of the main pulley 7 is reduced, the main support 6 moves downwards under the action of the spring 15 and the self gravity, the pressing plate 18 is separated from the limit switch 4, the purpose of timely stopping the elevator is achieved, and the safety protection early warning effect is achieved before the rope is broken.
The elevator hoisting device is a mature technology in elevator equipment and is not described in detail.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an elevator rope breakage detection device, includes frame (1), its characterized in that: the upper end face of the rack (1) is fixedly arranged on the lower end face of the top plate (2) through a screw (3), a limit switch (4) is vertically arranged at the middle position of the lower end face of the rack (1), auxiliary supports (8) are vertically welded at the left end and the right end of the lower end face of the rack (1), a pair of stand columns (5) which are symmetrical to each other are respectively arranged at the left side and the right side of the limit switch (4), a main support (6) is vertically inserted into the lower end face of the stand columns (5), a first fixed pulley (9) and a second fixed pulley (10) are rotatably arranged at the lower end of each auxiliary support (8), a pressing plate (18) is arranged at the upper end of each main support (6), a main pulley (7) is rotatably arranged at the lower end of each main support (6), a rope (11) is wound on the arc profile at the lower end of each main pulley (7), and the right side, and the left side of the rope (11) passes through the arc outer contour of the upper end of the first fixed pulley (9), the middle position of the upper end face of the pressing plate (18) is in contact with the lower end of the limit switch (4), the left end and the right end of the upper end face of the pressing plate (18) are vertically welded with connecting rods (19), and the connecting rods (19) are inserted into the lower end face of the upright post (5).
2. The elevator rope breakage detecting device according to claim 1, characterized in that: the first fixed pulley (9) and the second fixed pulley (10) are respectively located on two sides of the main pulley (7), the positions of the first fixed pulley (9) and the second fixed pulley (10) away from the main pulley (7) are the same, and the first fixed pulley (9) and the second fixed pulley (10) are located at the upper end of the main pulley (7).
3. The elevator rope breakage detecting device according to claim 1, characterized in that: the elevator car is characterized in that a first free end (12) is arranged at the right end of the rope (11), a second free end (13) is arranged on the left side of the rope (11), the first free end (12) is connected with an elevator winding device, and the second free end (13) is vertically connected with an elevator car (14) downwards.
4. The elevator rope breakage detecting device according to claim 1, characterized in that: the lower end of the upright post (5) is provided with a telescopic inner cavity (17), the upper end of the connecting rod (19) is inserted in the telescopic inner cavity (17) in a sliding mode, the upper end of the connecting rod (19) is provided with a limiting block (16), and the outer wall of the middle end of the connecting rod (19) is sleeved with a spring (15).
5. The elevator rope breakage detecting device according to claim 4, characterized in that: the upper end of the spring (15) is abutted against the lower end face of the upright post (5), and the lower end of the spring (15) is abutted against the upper end face of the pressing plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921187752.8U CN210558757U (en) | 2019-07-25 | 2019-07-25 | Elevator rope breakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921187752.8U CN210558757U (en) | 2019-07-25 | 2019-07-25 | Elevator rope breakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210558757U true CN210558757U (en) | 2020-05-19 |
Family
ID=70624841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921187752.8U Active CN210558757U (en) | 2019-07-25 | 2019-07-25 | Elevator rope breakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210558757U (en) |
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2019
- 2019-07-25 CN CN201921187752.8U patent/CN210558757U/en active Active
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