CN202808110U - Anti-overrunning anti-falling safe protection system of construction hoist - Google Patents
Anti-overrunning anti-falling safe protection system of construction hoist Download PDFInfo
- Publication number
- CN202808110U CN202808110U CN 201220555988 CN201220555988U CN202808110U CN 202808110 U CN202808110 U CN 202808110U CN 201220555988 CN201220555988 CN 201220555988 CN 201220555988 U CN201220555988 U CN 201220555988U CN 202808110 U CN202808110 U CN 202808110U
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- China
- Prior art keywords
- magnetic induction
- induction switch
- cage
- switch
- bracing frame
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses an anti-overrunning anti-falling safe protection system of a construction hoist and relates to the safe protection system of the construction hoist. The problem that the safe protection system of the prior construction hoist is poor in protection capability is solved. A magnetic induction switch and a magnetic induction switch triggering device are arranged on the prior construction hoist, the magnetic induction switch triggering device is fixed to a supporting frame of the hoist and is placed on a collision control bar, the magnetic induction switch triggering device is used for triggering the connection and the disconnection of the magnetic induction switch, the magnetic induction switch is fixed to the upper portion of a hoisting cage and a travel switch and the magnetic induction switch are connected in a power supply loop of a three-phase motor in series. The system is used for safe protection of the operation of the construction hoist.
Description
Technical field
The utility model relates to a kind of safety system of building hoist.
Background technology
Building hoist is the building ground construction, especially a kind of requisite handling machinery that uses of skyscraper, it is according to the building profile, guide rail bracket is tilted to install, and cage keeps level, and along inclined guide rails frame up-and-down movement, its function is that workmen and relevant preparation of construction, service tool, construction material are transported to corresponding floor and job location, its use has greatly improved labor efficiency.
Building hoist main potential safety hazard in use is to fall after the rear falling from high altitude that occurs of driving device wearing and tearing and the overtaking journey; its main safety guard is anti-falling safety device and spacing up and down; high-low limit; spacing and high-low limit is the travel switch on collision control bar and the cage up and down; both collisions make cage stop up-downgoing; but after repeatedly using; can be damaged or depart from existing picture; cause losing efficacy; cause cage to cross stroke; drive part is gone out rack guide rail; have an accident, the harm huge to causing of personal safety and property safety, protective capability is not enough.
The utility model content
The utility model is the problem for the protective capability deficiency of the safety system that solves existing building hoist, thereby a kind of construction lifter surpassed distance safety system that falls is provided.
The construction lifter surpassed distance safety system that falls, it comprises elevator bracing frame 1, cage 2 and travel switch S1, collision control bar 4 and three phase electric machine M, the slideway sliding block joint on cage 2 and the elevator bracing frame 1; Collision control bar 4 is fixed on the elevator bracing frame 1, and travel switch S1 is arranged on the top of cage 2; Three phase electric machine M is used for driving cage 2 and moves up and down;
It also comprises magnetic induction switch S2 and magnetic induction switch flip flop equipment 3, and described magnetic induction switch flip flop equipment 3 is fixed on the elevator bracing frame 1, and be positioned at collision control bar 4 above; Described magnetic induction switch flip flop equipment 3 is used for triggering magnetic induction switch S2 and disconnects; Magnetic induction switch S2 is fixed on the top of cage 2; Travel switch S1 and magnetic induction switch S2 are three phase switch, and travel switch S1 and magnetic induction switch S2 are connected in the current supply circuit of three phase electric machine M.
The utility model adopts magnetic induction switch as the second stage fender guard of cage 2; when first order fender guard is that the stroke switch is damaged or during off-set phenomenon; magnetic induction switch is triggered after crossing slideway in the top of cage 2; and then disconnection three phase electric machine; cage 2 is no longer risen, thereby stop cage 2 surpassed distances to fall.Protective capability of the present utility model is strong, and is not subjected to affect such as sunshine, temperature, humidity etc., and stability in use is high.
Description of drawings
Fig. 1 is circuit connection diagram of the present utility model; Fig. 2 is the installation site scheme drawing of the utility model on the elevator bracing frame.
The specific embodiment
The specific embodiment one, in conjunction with Fig. 1 this specific embodiment is described, the construction lifter surpassed distance safety system that falls, it comprises elevator bracing frame 1, cage 2 and travel switch S1, collision control bar 4 and three phase electric machine M, the slideway sliding block joint on cage 2 and the elevator bracing frame 1; Collision control bar 4 is fixed on the elevator bracing frame 1, and travel switch S1 is arranged on the top of cage 2; Three phase electric machine M is used for driving cage 2 and moves up and down;
It also comprises magnetic induction switch S2 and magnetic induction switch flip flop equipment 3, and described magnetic induction switch flip flop equipment 3 is fixed on the elevator bracing frame 1, and be positioned at collision control bar 4 above; Described magnetic induction switch flip flop equipment 3 is used for triggering magnetic induction switch S2 and disconnects; Magnetic induction switch S2 is fixed on the top of cage 2; Travel switch S1 and magnetic induction switch S2 are three phase switch, and travel switch S1 and magnetic induction switch S2 are connected in the current supply circuit of three phase electric machine M.
The utility model adopts magnetic induction switch, is installed in top, cage top, and normality is normally closed, and on the upload control line of access building hoist control path, described magnetic induction switch disconnects after meeting the magnetic induction switch flip flop equipment, and the control cage stops up operation.
The utility model is when construction, magnetic induction switch is installed on the drive plate of cage, two line ends of control line are linked on the control housing upload control line, and the magnetic induction switch flip flop equipment is installed on the most significant end of elevator bracing frame, when the magnetic induction switch on the cage during near magnet, magnetic induction switch moves under the effect of magnet, its contact disconnects, and the upload control of elevator is cut off in its two wiring, and cage is stopped, can't be up, avoided the overtaking journey to have an accident.
The fall difference of safety system of the specific embodiment two, this specific embodiment and the specific embodiment one described construction lifter surpassed distance is that it also comprises fuse FU, and described fuse FU is connected between three phase mains and the travel switch S1.
The fall difference of safety system of the specific embodiment three, this specific embodiment and the specific embodiment one or two described construction lifter surpassed distances is that magnetic induction switch flip flop equipment 3 is magnet.
Claims (3)
1. the construction lifter surpassed distance safety system that falls, it comprises elevator bracing frame (1), cage (2) and travel switch (S1), collision control bar (4) and three phase electric machine (M), the slideway sliding block joint on cage (2) and the elevator bracing frame (1); Collision control bar (4) is fixed on the elevator bracing frame (1), and travel switch (S1) is arranged on the top of cage (2); Three phase electric machine (M) is used for driving cage (2) and moves up and down;
It is characterized in that: further comprising magnetic induction switch (S2) and magnetic induction switch flip flop equipment (3), described magnetic induction switch flip flop equipment (3) is fixed on the elevator bracing frame (1), and be positioned at collision control bar (4) above; Described magnetic induction switch flip flop equipment (3) is used for triggering magnetic induction switch (S2) and disconnects; Magnetic induction switch (S2) is fixed on the top of cage (2); Travel switch (S1) and magnetic induction switch (S2) are three phase switch, and travel switch (S1) and magnetic induction switch (S2) are connected in the current supply circuit of three phase electric machine (M).
2. the construction lifter surpassed distance according to claim 1 safety system that falls is characterized in that it also comprises fuse (FU), and described fuse (FU) is connected in the current supply circuit of three phase electric machine (M).
3. the construction lifter surpassed distance according to claim 1 and 2 safety system that falls is characterized in that magnetic induction switch flip flop equipment (3) is magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555988 CN202808110U (en) | 2012-10-26 | 2012-10-26 | Anti-overrunning anti-falling safe protection system of construction hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555988 CN202808110U (en) | 2012-10-26 | 2012-10-26 | Anti-overrunning anti-falling safe protection system of construction hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808110U true CN202808110U (en) | 2013-03-20 |
Family
ID=47867031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220555988 Expired - Fee Related CN202808110U (en) | 2012-10-26 | 2012-10-26 | Anti-overrunning anti-falling safe protection system of construction hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808110U (en) |
-
2012
- 2012-10-26 CN CN 201220555988 patent/CN202808110U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |