CN2612650Y - Overload protection apparatus for door type elevator - Google Patents
Overload protection apparatus for door type elevator Download PDFInfo
- Publication number
- CN2612650Y CN2612650Y CN 03216596 CN03216596U CN2612650Y CN 2612650 Y CN2612650 Y CN 2612650Y CN 03216596 CN03216596 CN 03216596 CN 03216596 U CN03216596 U CN 03216596U CN 2612650 Y CN2612650 Y CN 2612650Y
- Authority
- CN
- China
- Prior art keywords
- main body
- cylindrical shell
- freight
- fixed
- over
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
An over-freight protector for portal type lifters comprises a main body, a travel switch and a tight-wire fixed rod, wherein, a hole is opened at bottom portion and a travel groove is opened on a side-wall of the main body, the travel switch is fixed on an external portion of the main body, a switch contact of the travel switch is connected to a control circuit of the lifter, a spring is arranged inside the main body, a pressure plate is arranged on an up-portion of the spring which is arranged inside the main body, the pressure plate is provided with a circular ring shape oyster mushroom, the oyster mushroom is extended outside the main body through the travel groove arranged on a side-wall of the main body, and is covered a travel rod of the travel switch, one end of the tight-wire fixed rod is fixed with the pressure plate through a hole provided on a bottom portion of the main body, a hang fixing part is fixed on an up-portion of the main body. Over-freight problems of the portal type lifters caused by various reasons can resolved effectively by the over-freight protector, when the over-freight condition is occurred, the over-freight protector can control the lifters to fail start-up and stop running, the personnel safety of the builder can be insured, the lifters can be protected from damage caused by over-freight. The spring provided inside the over-freight protector has a buffer action, and the impulse force produced in start-up of the lifter can be relieved effectively.
Description
Technical field
The utility model relates to elevator machinery, and particularly the special-purpose assorted device of gantry hoist is specially gantry hoist overload protection device.
Background technology
Do not have overload protection device on the existing gantry hoist, gantry hoist is often because overload, and perhaps external object blocks elevator material disc in the running suddenly and the generation accident.The lighter burns electrical motor, and weight person breaks steel rope, and distortion elevator fuselage cradle causes economic loss, and directly influences workmen's life security.
Summary of the invention
The utility model solves the problem of overloading free fender guard on the existing elevator machinery, particularly gantry hoist, and a kind of gantry hoist overload protection device is provided.
The utility model is to adopt following technical scheme to realize: gantry hoist overload protection device; comprise the bottom and have the hole; have the cylindrical shell of stroke groove on the sidewall and be fixed in outside and its switch contact of cylindrical shell and be connected in travel switch in the elevator control circuit; spring is arranged in the cylindrical shell; on cylindrical shell inner spring top pressing plate is arranged; have circular picking up the ears on the pressing plate; circular stroke groove of picking up the ears through cylinder lateral wall extends outside the cylindrical shell and is placed on the stroke lever of travel switch; also comprise the cable wire fixed link; this cable wire fixed link one end passes the hole and the pressing plate of cylindrical shell bottom and fixes, and the top of cylindrical shell is fixed with the suspension fixed parts.Suspension fixed parts by cylindrical shell top is fixed in the top cross-bar of gantry hoist with this overload protection device, and an end and the cable wire fixed link of the cable wire of elevator are fixed.During elevator work, cable wire is stressed, pulling cable wire fixed link reaches with its fixing pressing plate and moves downward, the downward compression spring of pressing plate, when the load of elevator surpasses specified value when in uphill process, having external object to block the elevator material disc (or elevator), the pressing plate against the force of the spring moves downward significantly, slide block on the stroke lever of the circular impact stroke switch of picking up the ears on the pressing plate, what make travel switch is connected in contact open in the elevator control circuit (how the contact of travel switch is connected in the elevator control circuit belongs to known technology to the those of ordinary skill of electric control field), make the electrical motor outage of elevator, at this moment, elevator will can not start because of overload; When having exotic to block elevator, elevator stops to rise, thereby realizes the function of overload protection.
Gantry hoist overload protection device described in the utility model can effectively solve gantry hoist because the overload problems that a variety of causes causes; when overload takes place when; this overload protection device may command elevator can't start or be out of service; can guarantee workmen's personal safety, the protection elevator does not damage because of overload.Spring in this overload protection device can play buffer action, can effectively alleviate elevator and start the moment damaging impact power that causes suddenly, and the material disc of elevator is operated steadily, and fuselage is more reliable and more stable.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present utility model;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the utility model tube structure scheme drawing;
Fig. 4 is the upward view of Fig. 3;
Fig. 5 is the utility model pressure plate structure scheme drawing;
Fig. 6 is existing travel switch inner structure scheme drawing;
Fig. 7 is the catenation principle figure of contact in the control circuit of elevator of travel switch;
Fig. 8 is the utility model fixed position scheme drawing on gantry hoist;
The specific embodiment
Gantry hoist overload protection device; comprising the bottom has the cylindrical shell 3 that has stroke groove 2 on hole 1, the sidewall and is fixed in outside and its switch contact of cylindrical shell and be connected in travel switch 4 in the elevator control circuit; spring 5 is arranged in the cylindrical shell; on cylindrical shell inner spring top pressing plate 6 is arranged; have on the pressing plate and circularly pick up the ears 7; circular stroke groove 2 of picking up the ears through cylinder lateral wall extends outside the cylindrical shell and is placed on the stroke lever of travel switch; also comprise cable wire fixed link 8; this cable wire fixed link one end passes the hole 1 of cylindrical shell bottom and fixes with pressing plate, and the top of cylindrical shell is fixed with the suspension fixed parts.
Cable wire fixed link 8 is " U " shape pipe, being connected and fixed of be more convenient for cable wire and cable wire fixed link.
Travel switch adopts the known products of selling on the market, and its normally closed contact CK is serially connected with the rising start-up control loop of elevator.Work as lifter excess load, when making the normally closed contact CK disconnection of travel switch, the drive motor of elevator can not start or stop operation.In addition, in the control circuit of elevator, can set up an overload warning loop that is serially connected with the open contact CK ' of travel switch, lifter excess load makes travel switch normally closed contact CK open contact CK ' of open circuited while closure, make the conducting of overload warning loop, the alarm appliance in the alarm loop (as buzzer phone, electric bell etc.) sounding alarm.
The suspension fixed parts on cylindrical shell top can be made of chassis 10 and two perpendicular gussets 11,12 that are fixed on the chassis and its upper end has screw, and chassis 10 is fixed with cylindrical shell.Utilization is erected the screw of gusset upper end and with bolt the top cross-bar of this overload protection device and gantry hoist is fixed.This, fixed sturcture the fixing of overload protection device and elevator of being more convenient for.
Claims (3)
1; a kind of gantry hoist overload protection device; it is characterized by: comprise the bottom and have hole (1); have the cylindrical shell (3) of stroke groove (2) on the sidewall and be fixed in outside and its switch contact of cylindrical shell and be connected in travel switch (4) in the elevator control circuit; spring (5) is arranged in the cylindrical shell; on cylindrical shell inner spring top pressing plate (6) is arranged; have circular picking up the ears (7) on the pressing plate; circular stroke groove (2) of picking up the ears through cylinder lateral wall extends outside the cylindrical shell and is placed on the stroke lever of travel switch; also comprise cable wire fixed link (8); this cable wire fixed link one end passes the hole (1) of cylindrical shell bottom and fixes with pressing plate, and the top of cylindrical shell is fixed with the suspension fixed parts.
2, gantry hoist overload protection device as claimed in claim 1 is characterized by: cable wire fixed link (8) is " U " shape pipe.
3, gantry hoist overload protection device as claimed in claim 1 or 2; it is characterized by: the suspension fixed parts on cylindrical shell top is by chassis (10) and be fixed on the chassis and two perpendicular gussets (11), (12) that its upper end has a screw constitute, and chassis (10) are fixed with cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216596 CN2612650Y (en) | 2003-04-21 | 2003-04-21 | Overload protection apparatus for door type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216596 CN2612650Y (en) | 2003-04-21 | 2003-04-21 | Overload protection apparatus for door type elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612650Y true CN2612650Y (en) | 2004-04-21 |
Family
ID=34160769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216596 Expired - Fee Related CN2612650Y (en) | 2003-04-21 | 2003-04-21 | Overload protection apparatus for door type elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612650Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020179A (en) * | 2010-12-30 | 2011-04-20 | 成都市第四建筑工程公司 | Interception device |
| CN110441111A (en) * | 2019-08-28 | 2019-11-12 | 浙江大学 | A kind of geotechnical model of size adjustable pours sand device automatically |
-
2003
- 2003-04-21 CN CN 03216596 patent/CN2612650Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020179A (en) * | 2010-12-30 | 2011-04-20 | 成都市第四建筑工程公司 | Interception device |
| CN110441111A (en) * | 2019-08-28 | 2019-11-12 | 浙江大学 | A kind of geotechnical model of size adjustable pours sand device automatically |
| CN110441111B (en) * | 2019-08-28 | 2020-09-04 | 浙江大学 | Automatic sand device that waters of geotechnique's model of adjustable size |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109437042A (en) | A kind of architectural engineering material lift equipment | |
| US20080128124A1 (en) | Pumping and Repairing Unit | |
| CN2863744Y (en) | Rope releasing protective device | |
| CN2612650Y (en) | Overload protection apparatus for door type elevator | |
| CN2761562Y (en) | Controller for stroke limit | |
| CN206624583U (en) | Electric block provided with height limiting device | |
| CN206705517U (en) | Can automatic shutter crane hook | |
| CN201052940Y (en) | Spring type over-loading limiter for material hoisting machine | |
| CN201250075Y (en) | Traveling crane protective device | |
| CN212864010U (en) | Rope loosening and overload protection detection assembly for stacker | |
| CN201169511Y (en) | Crane rope overwind-proof apparatus | |
| CN203558713U (en) | Hook safety device | |
| CN211141329U (en) | Hoisting machinery wire rope operation protection equipment | |
| CN201530680U (en) | Steel wire rope fracture protection device | |
| CN203428745U (en) | Electric grab bucket | |
| CN101804804A (en) | Elevating safety upright post controlled by automobile elevator program | |
| CN201538644U (en) | Novel hook | |
| CN2206771Y (en) | Automatic stop device for cord breaking of hoist | |
| CN219691526U (en) | Anti-falling protection equipment for metal ore exploitation | |
| CN2053623U (en) | Automatic safety device of elevator | |
| CN217756642U (en) | General crane with hook shaking prevention function | |
| CN215854637U (en) | Auxiliary fixing device for lifting hook for crane | |
| CN201703989U (en) | Crane handle wire anti-clamping protective device | |
| CN2129276Y (en) | Steel-spring type over-load limiter for crane | |
| CN2752224Y (en) | Electric calabash grab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |