CN216997174U - Elevator overspeed descent emergency safety protection device - Google Patents
Elevator overspeed descent emergency safety protection device Download PDFInfo
- Publication number
- CN216997174U CN216997174U CN202220533146.2U CN202220533146U CN216997174U CN 216997174 U CN216997174 U CN 216997174U CN 202220533146 U CN202220533146 U CN 202220533146U CN 216997174 U CN216997174 U CN 216997174U
- Authority
- CN
- China
- Prior art keywords
- wedge
- shaped
- connecting rod
- car
- ratchet
- 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.)
- Active
Links
Images
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses an emergency safety protection device for overspeed descent of an elevator, which comprises a lift car, an elevator speed limiter and a lifting track, wherein the lift car moves up and down on the lifting track, a steel wire rope is installed on the elevator speed limiter, a sliding safety gear is fixed on the lift car, the sliding safety gear is installed on the lifting track in a sliding manner, the upper part of the sliding safety gear is provided with a wedge-shaped matching part, a wedge-shaped braking cavity is formed in the wedge-shaped matching part, a wedge-shaped braking caliper block is movably arranged in the wedge-shaped braking cavity in a lifting manner, and the top end of the wedge-shaped braking caliper block is connected with the steel wire rope through a connecting rod; a pawl and ratchet wheel braking component is arranged between the lift car and the connecting rod in a matching way. When the lift car descends in an overspeed manner, the elevator speed limiter locks the steel wire rope, the connecting rod drives the wedge-shaped brake caliper block to move upwards in the sliding safety tongs and to be locked in a wedge manner to brake the lift car, meanwhile, the wedge-shaped brake caliper block drives the connecting rod to move upwards, and the pawl moves to be limited and locked by the ratchet wheel and synchronously brakes the lift car.
Description
Technical Field
The utility model relates to an elevator safety protection device, in particular to an elevator overspeed descent emergency safety protection device.
Background
With the increasing number of high-rise buildings in China, the elevator becomes a necessary tool for people to carry in the buildings, and the operation safety of the elevator is a focus of attention of people in the process of using the elevator. The safety of the operation is the focus of attention in the use of elevators. However, in recent years, although an elevator speed limiter capable of monitoring an elevator car in a linkage manner is arranged on an elevator, the elevator overspeed and descent accidents are still frequent, so that the safe taking of the elevator is greatly concerned and emphasized, and the elevator safety monitoring method is also a technical difficulty in safe operation and maintenance of the elevator;
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide an emergency safety protection device for elevator overspeed descent, when a car descends at normal speed, the car and a steel wire rope synchronously move, an elevator speed limiter cannot lock the steel wire rope, once the car descends at overspeed, the elevator speed limiter locks the steel wire rope, a connecting rod drives a wedge-shaped brake block to move upwards in a sliding safety clamp and to be locked in a wedge shape to brake the car, meanwhile, the wedge-shaped brake block drives the connecting rod to move upwards, and a pawl moves to be limited and locked by a ratchet wheel and synchronously brakes the car.
The purpose of the utility model is realized by the following technical scheme:
an emergency safety protection device for elevator overspeed descent comprises a car, an elevator speed limiter and a lifting track, wherein the car moves up and down on the lifting track, a steel wire rope is arranged on the elevator speed limiter, a sliding safety gear is fixed on the car and is slidably arranged on the lifting track, a wedge-shaped matching part is arranged at the upper part of the sliding safety gear, a wedge-shaped braking cavity is formed inside the wedge-shaped matching part, a wedge-shaped braking block is movably arranged in the wedge-shaped braking cavity in a lifting mode, and the top end of the wedge-shaped braking block is connected with the steel wire rope through a connecting rod; and a pawl and ratchet wheel braking assembly is arranged between the lift car and the connecting rod in a matched manner.
In order to better realize the utility model, the pawl-ratchet wheel braking assembly comprises a ratchet wheel and a pawl matched with the ratchet wheel, the ratchet wheel is rotatably arranged on the lift car, and the pawl is connected with the connecting rod.
Preferably, a connecting rod passing hole is formed in the top of the sliding safety tongs, the connecting rod passes through the connecting rod passing hole of the sliding safety tongs in a matching mode, and the bottom end of the connecting rod is fixedly connected with the top end of the wedge-shaped brake tong block.
Preferably, the middle part of the wedge-shaped brake caliper block is provided with a caliper block inner hole matched with the lifting rail to slide, and the wedge-shaped matching part and the wedge-shaped brake caliper block are mutually locked and braked in a wedge shape.
Preferably, a ratchet support is fixed on the car, and the ratchet is installed on the ratchet support in a matching mode.
Preferably, the two sides of the car are respectively provided with a lifting track.
According to a further preferable technical scheme, sliding safety tongs and pawl and ratchet wheel braking assemblies are arranged on two sides of the lift car respectively.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
when the normal speed of the car descends, the car and the steel wire rope synchronously move, the elevator speed limiter cannot lock the steel wire rope, once the car descends in an overspeed mode, the elevator speed limiter locks the steel wire rope, the connecting rod drives the wedge-shaped brake caliper block to ascend in the sliding safety tongs and to be locked in a wedge mode to brake the car, meanwhile, the wedge-shaped brake caliper block drives the connecting rod to move upwards, and the pawl moves to be locked in a limiting mode through the ratchet wheel and synchronously plays a role in braking the car.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged schematic view of fig. 1.
Wherein, the names corresponding to the reference numbers in the drawings are:
1-elevator speed limiter, 2-steel wire rope, 3-car, 4-lifting rail, 5-sliding safety gear, 51-wedge matching part, 6-wedge brake block, 7-connecting rod, 8-pawl, 9-ratchet and 10-ratchet support.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
examples
As shown in fig. 1 and 2, an elevator overspeed and descent emergency safety protection device comprises a car 3, an elevator overspeed governor 1 and a lifting rail 4, wherein the car 3 is driven by a traction device to ascend and descend on the lifting rail 4, the elevator overspeed governor 1 (the elevator overspeed governor 1 is a conventional overspeed governor for an elevator and comprises a left rope clamping arm and a clamping block, a right rope clamping arm and a clamping block, a rope, a governor rope pulley, a centrifugal hammer and a brake block, and the elevator overspeed governor is mainly characterized in that the elevator overspeed governor is linked with the car through the rope, when the car descends and exceeds the speed, the rope and the governor rope pulley move fast, the centrifugal hammer is eccentrically positioned at the outer side and drives the brake block, the left rope clamping arm and the clamping block, the right rope clamping arm and the clamping block to clamp the rope respectively, so as to brake the car), a steel wire rope 2 is installed on the elevator overspeed governor 1 (the steel wire 2 is movably installed on the elevator overspeed governor 1), a sliding safety clamp 5 is fixed on the car 3, sliding safety gear 5 slidable mounting is on lift track 4, sliding safety gear 5 upper portion is equipped with wedge cooperation portion 51 (see fig. 2), wedge braking chamber (see fig. 2, wedge braking chamber cross-section is trapezoidal shape) is formed with to wedge cooperation portion 51 inside, the lift activity is equipped with wedge brake caliper block 6 in the wedge braking chamber (when wedge brake caliper block 6 rises at the wedge braking chamber, then wedge brake caliper block 6 will lock from top to bottom with wedge cooperation portion 51 and brake), wedge brake caliper block 6 top is connected with wire rope 2 through connecting rod 7.
Preferably, the present embodiment may further be provided with a pawl and ratchet wheel braking assembly between the car 3 and the connecting rod 7; referring to fig. 2, the pawl-and-ratchet brake assembly comprises a ratchet 9 and a pawl 8 matched with the ratchet 9 (the ratchet 9 and the pawl 8 move in a single direction, when the wedge-shaped brake caliper 6 moves upwards, the connecting rod 7 also moves upwards, the pawl 8 moves and is stopped and braked by the ratchet 9, namely, only the wedge-shaped brake caliper 6 moves downwards relatively, the wheel 9 and the pawl 8 can move mutually), the ratchet 9 is rotatably arranged on the car 3, and the pawl 8 is connected with the connecting rod 7.
According to a preferred embodiment of the present embodiment, the top of the sliding safety gear 5 is provided with a connecting rod through hole, the connecting rod 7 is matched to pass through the connecting rod through hole of the sliding safety gear 5, and the bottom end of the connecting rod 7 is fixedly connected with the top end of the wedge-shaped brake caliper block 6.
According to a preferred embodiment of this embodiment, wedge brake caliper blocks 6 have a caliper block inner bore in the middle for sliding engagement with lifting rail 4, and wedge engagement portion 51 is wedge-lockingly engaged with wedge brake caliper blocks 6. Referring to fig. 2, a ratchet support 10 is fixed on the car 3 (the ratchet support 10 is used for assembling the ratchet 9), and the ratchet 9 is fittingly installed on the ratchet support 10.
As shown in fig. 1, two sides of the car 3 are respectively provided with a lifting track 4, and the car 3 can move up and down in balance between the two lifting tracks 4; sliding safety tongs 5, a pawl ratchet wheel braking component and an elevator speed limiter 1 are respectively arranged on two sides of the car 3, and the purpose of braking on two sides of the car 3 can be synchronously achieved.
The car 3 descends on the lifting track 4, the wedge-shaped brake caliper block 6 in the sliding safety gear 5 descends together with the steel wire rope 2 through the connecting rod 7 (at the moment, the wedge-shaped brake caliper block 6 cannot move upwards or is locked at the sliding safety gear 5), when the car 3 descends at an excessive speed, the steel wire rope 2 also descends at an excessive speed, the elevator speed limiter 1 can fix the steel wire rope 2 (the steel wire rope 2 does not move any more), the connecting rod 7 stops moving, the car 3 is in a descending trend, therefore, the wedge-shaped brake caliper block 6 moves upwards in the sliding safety gear 5 and is locked in a wedge shape and brakes the car 3, meanwhile, the wedge-shaped brake caliper block 6 drives the connecting rod 7 to move upwards, and the pawl 8 moves to be locked in a limiting mode by the ratchet wheel 9 and synchronously brakes the car 3.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (7)
1. The utility model provides an elevator overspeed descent emergency safety protection device, includes car (3), elevator overspeed governor (1) and lift track (4), and the motion of falling is gone up and down in lift track (4) in car (3), and the installation is equipped with wire rope (2) on elevator overspeed governor (1), its characterized in that: a sliding safety gear (5) is fixed on the car (3), the sliding safety gear (5) is installed on the lifting track (4) in a sliding mode, a wedge-shaped matching portion (51) is arranged on the upper portion of the sliding safety gear (5), a wedge-shaped braking cavity is formed in the wedge-shaped matching portion (51), a wedge-shaped braking block (6) is movably arranged in the wedge-shaped braking cavity in a lifting mode, and the top end of the wedge-shaped braking block (6) is connected with the steel wire rope (2) through a connecting rod (7); a pawl and ratchet wheel braking assembly is arranged between the lift car (3) and the connecting rod (7) in a matched mode.
2. An elevator overspeed descent emergency safety protection device according to claim 1, wherein: pawl ratchet braking subassembly includes ratchet (9) and pawl (8) with ratchet (9) matched with, ratchet (9) rotate locate car (3) on, pawl (8) are connected with connecting rod (7).
3. An elevator overspeed descent emergency safety protection device according to claim 1, wherein: the top of the sliding safety tongs (5) is provided with a connecting rod passing hole, the connecting rod (7) is matched with and passes through the connecting rod passing hole of the sliding safety tongs (5), and the bottom end of the connecting rod (7) is fixedly connected with the top end of the wedge-shaped brake tong block (6).
4. An elevator overspeed descent emergency safety protection device according to claim 1, wherein: the middle part of the wedge-shaped brake caliper block (6) is provided with a caliper block inner hole which is matched with the lifting track (4) to slide, and the wedge-shaped matching part (51) and the wedge-shaped brake caliper block (6) are mutually locked and braked in a wedge shape.
5. An elevator overspeed descent emergency safety protection device according to claim 2, wherein: be fixed with ratchet support (10) on car (3), ratchet (9) cooperation is installed on ratchet support (10).
6. An elevator overspeed descent emergency safety protection device according to claim 2, wherein: and lifting rails (4) are respectively arranged on two sides of the car (3).
7. An elevator overspeed descent emergency safety protection apparatus according to claim 6, wherein: sliding safety tongs (5) and a pawl ratchet wheel braking assembly are respectively arranged on two sides of the lift car (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220533146.2U CN216997174U (en) | 2022-03-11 | 2022-03-11 | Elevator overspeed descent emergency safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220533146.2U CN216997174U (en) | 2022-03-11 | 2022-03-11 | Elevator overspeed descent emergency safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216997174U true CN216997174U (en) | 2022-07-19 |
Family
ID=82368198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220533146.2U Active CN216997174U (en) | 2022-03-11 | 2022-03-11 | Elevator overspeed descent emergency safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216997174U (en) |
-
2022
- 2022-03-11 CN CN202220533146.2U patent/CN216997174U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4166475B2 (en) | Elevator passenger evacuation method and evacuation device | |
| CN1789102B (en) | Elevator overspeed protecting device | |
| CN216997174U (en) | Elevator overspeed descent emergency safety protection device | |
| CN108100804A (en) | A kind of car braking system | |
| CN220011776U (en) | Elevator shaft anti-falling device | |
| CN107187988A (en) | Brake device for elevator and its shift mechanism | |
| CN111320050B (en) | Be used for elevator overspeed protection device that goes upward | |
| CN210366474U (en) | Elevator overspeed gliding detection and protection device | |
| CN115490109A (en) | Lifting device with high safety performance | |
| CN211998357U (en) | Elevator suitable for villa | |
| CN211338418U (en) | Rail guard is used in elevator installation dimension | |
| US5238088A (en) | Pit buffer assembly for high speed elevators | |
| CN114408710A (en) | Traction type aluminum profile elevator | |
| CN109879136B (en) | Safety elevator | |
| CN106946116A (en) | A kind of elevator with bidirectional speed limiter | |
| CN217780639U (en) | Elevator manual braking device | |
| CN219259240U (en) | Elevator speed limiter | |
| CN213622767U (en) | Auxiliary maintenance platform for elevator maintenance | |
| CN221318819U (en) | Wedge block guiding device of elevator safety tongs | |
| CN215160075U (en) | Device for manual emergency braking in car | |
| CN2721585Y (en) | Dropping preventer for broken lifting rope | |
| CN220684373U (en) | Novel elevator rescue equipment | |
| CN221916905U (en) | Anti-falling elevator | |
| CN209957170U (en) | Corridor elevator guider | |
| CN214114583U (en) | Elevator combined type overspeed protection device convenient to maintain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |