CN213085114U - Elevator safety tongs - Google Patents
Elevator safety tongs Download PDFInfo
- Publication number
- CN213085114U CN213085114U CN202022015432.3U CN202022015432U CN213085114U CN 213085114 U CN213085114 U CN 213085114U CN 202022015432 U CN202022015432 U CN 202022015432U CN 213085114 U CN213085114 U CN 213085114U
- Authority
- CN
- China
- Prior art keywords
- braking
- guide rail
- voussoir
- guide
- electro
- 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
Abstract
The utility model relates to an elevator accessory technical field, concretely relates to elevator safety tongs, including the braking shell, braking shell and guide rail sliding connection, the braking shell all is provided with the installation cavity in the both sides of guide rail, the installation cavity all is provided with the braking hole in one side that is close to the guide rail, one side that the guide rail was kept away from to the installation cavity is provided with the electro-magnet, the electro-magnet electricity is connected with the controller, reset spring, direction voussoir and braking voussoir have set gradually between electro-magnet and the braking hole, reset spring's both ends respectively with direction voussoir, electro-magnet fixed connection, the direction voussoir with installation cavity sliding connection, the top of braking voussoir is provided with the pull rod, and every the equal fixedly connected with in top of braking voussoir is on a parallel with the bumping. The elevator safety gear is simple in structure, low in operation cost, high in braking effect and convenient to reset the braking wedge block.
Description
Technical Field
The utility model relates to an elevator accessory technical field especially relates to an elevator safety tongs.
Background
Safety tongs are the safety arrangement of elevator. The elevator safety gear device is a safety device which emergently stops a car and clamps the car on a guide rail under the operation of a speed limiter when the speed of an elevator exceeds the set limit speed of the speed limiter of the elevator or in the case of breakage and looseness of a suspension rope. It provides effective protection for the safe operation of the elevator and is generally installed on a car frame or a counterweight frame. The safety gear device consists of a safety gear operating mechanism and a safety gear body. When the safety tongs mechanism acts, firstly the electric appliance mechanism is triggered to disconnect the safety loop of the elevator to stop the elevator, and if the brake does not stop, the safety tongs can further act to stop the elevator on the guide rail.
The elevator safety gear in the prior art has a complex structure, the brake block is quickly abraded, the maintenance and replacement costs are high, and meanwhile, the elevator safety gear is not easy to operate when reset is carried out.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing an elevator safety tongs, elevator safety tongs simple structure, the running cost is lower and braking effect is higher, simultaneously, is convenient for reset the braking voussoir.
In order to achieve the technical effects, the utility model adopts the following technical scheme:
the utility model provides an elevator safety tongs, includes the braking shell, braking shell and guide rail sliding connection, the braking shell all is provided with the installation cavity in the both sides of guide rail, the installation cavity all is provided with the braking hole in the one side that is close to the guide rail, one side that the guide rail was kept away from to the installation cavity is provided with the electro-magnet, the electro-magnet electricity is connected with the controller, reset spring, direction voussoir and braking voussoir have set gradually between electro-magnet and the braking hole, reset spring's both ends respectively with direction voussoir, electro-magnet fixed connection, the direction voussoir with installation cavity sliding connection, the top of braking voussoir is provided with the pull rod, and every the equal fixedly connected with in top of braking voussoir is two to be.
Furthermore, a friction plate is installed on one side, close to the guide rail, of the brake wedge block, and a plurality of anti-skidding teeth are horizontally arranged on one side, facing the guide rail, of the friction plate.
Furthermore, the two ends of the friction plate are provided with mounting plates perpendicular to the friction plate, a plurality of through holes are formed in the mounting plates, and mounting holes corresponding to the through holes are formed in the top and the bottom of the braking wedge block.
Furthermore, the guide wedge block is also provided with a plurality of guide rollers on the contact surface with the brake wedge block, and the guide rollers are rotatably connected with the guide wedge block.
Further, the buffer column comprises a top plate and a supporting plate, a buffer spring is arranged between the top plate and the supporting plate, a telescopic guide shaft is arranged inside the buffer spring, and the two ends of the buffer spring and the telescopic guide shaft are respectively fixedly connected with the top plate and the supporting plate.
Compared with the prior art, the beneficial effects of the utility model are that: the elevator safety tongs drive the braking wedge block to ascend along the guide wedge block through the pull rod, and drive the friction plates to rub and clamp the guide rail, so that the elevator safety tongs can effectively brake and simultaneously facilitate replacement of the friction plates, and the maintenance cost can be effectively reduced. Meanwhile, the electromagnet drives the guide wedge block to move, so that the guide wedge block and the brake wedge block are separated conveniently in the resetting process, and the brake wedge block is convenient to reset.
Drawings
Fig. 1 is a schematic view of an overall structure of an elevator safety gear according to an embodiment of the present invention;
fig. 2 is a schematic view of a partially enlarged structure of an elevator safety gear a according to an embodiment of the present invention;
fig. 3 is a schematic view of an installation structure of a braking wedge and a friction plate of an elevator safety gear according to an embodiment of the present invention;
the reference signs are: 10-brake shell, 11-connecting hole, 20-guide rail, 30-mounting cavity, 31-slide rail, 32-electromagnet, 33-return spring, 34-guide wedge block, 341-sliding groove, 342-guide roller, 35-brake wedge block, 351-pull rod, 352-top plate, 353-supporting plate, 354-buffer spring, 355-telescopic guide shaft, 36-friction plate, 361-mounting plate and 362-anti-slip tooth.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 3, the elevator safety gear provided in this embodiment includes a brake housing 10, the brake housing 10 is slidably connected to a guide rail 20, the brake housing 10 is provided with mounting cavities 30 on both sides of the guide rail 20, a braking device is disposed inside the mounting cavity 30, the braking device includes an electromagnet 32, a return spring 33, a guide wedge 34 and a brake wedge 35, the brake wedge 35 is further provided with a friction plate 36 on a side close to the guide rail 20, and the mounting cavity 30 is provided with braking holes on a side close to the guide rail 20 for the friction plate 36 to pass through and clamp the guide rail 20, so as to achieve the purpose of braking.
In this embodiment, the electromagnet 32 is installed on a side of the installation cavity 30 away from the guide rail 20, and the electromagnet 32 is fixedly connected to the installation cavity 30. The electromagnet 32 is electrically connected to a controller for facilitating the switching on and off of the electromagnet 32. A reset spring 33, a guide wedge 34 and a brake wedge 35 are sequentially arranged between the electromagnet 32 and the brake hole, and two ends of the reset spring 33 are respectively fixedly connected with the guide wedge 34 and the electromagnet 32. The sliding engagement of guide wedge 34 with mounting cavity 30 facilitates horizontal movement of guide wedge 34 within mounting cavity 30. Specifically, the top and the bottom of the mounting cavity 30 are provided with slide rails 31, and the top and the bottom of the guide wedge 34 are provided with slide grooves 341 slidably connected with the slide rails 31, respectively.
In this embodiment, in order to brake the elevator, the contact surfaces of the guide wedge 34 and the brake wedge 35 are inclined surfaces and cooperate with each other, so that the brake wedge 35 moves upward along the guide wedge 34 to clamp the guide rail 20, the guide wedge 34 is provided with a plurality of guide rollers 342 on the contact surface with the brake wedge 35, and the guide rollers 342 are rotatably connected with the guide wedge 34. Specifically, a mounting groove is formed in the guide wedge 34, mounting grooves are formed in both sides of the mounting groove, and pin shafts are arranged at both ends of the guide roller 342 and are matched with the mounting grooves to realize rotation. In order to clamp the guide rail 20 conveniently, and simultaneously, prolong the service life of the brake pad, a friction plate 36 is further arranged on one side of the brake wedge 35 close to the guide rail 20, a plurality of anti-skidding teeth 362 are arranged on the friction plate 36, mounting plates 361 perpendicular to the friction plate 36 are arranged at two ends of the friction plate 36, a plurality of through holes are formed in the mounting plates 361 for fasteners to pass through, correspondingly, mounting holes corresponding to the through holes are formed in the top and the bottom of the brake wedge 35, and when the brake wedge is installed, the fasteners pass through the mounting holes and the through holes simultaneously to fix the mounting plates 361, so that the friction plate 36 is replaced, and the braking effect is improved. Preferably, the top and bottom of the brake wedge 35 are respectively provided with two mounting holes, and one of the mounting holes is an oblong hole, so as to facilitate the mounting of the friction plate 36 and prolong the service life of the friction plate.
In this embodiment, in order to facilitate the friction plate 36 to clamp the guide rail 20, the brake housing 10 is provided with a connecting hole 11, and the top of the brake wedge 35 is provided with a pull rod 351, wherein the pull rod 351 passes through the connecting hole 11 and is connected with a driving device. Two buffer columns parallel to the pull rod 351 are fixedly connected to the top of each of the brake wedges 35, and the buffer columns are symmetrically arranged on two sides of the pull rod 351. Specifically, the buffer column includes a top plate 352 and a supporting plate 353, a buffer spring 354 is disposed between the top plate 352 and the supporting plate 353, a telescopic guide shaft 355 is disposed inside the buffer spring 354, two ends of the buffer spring 354 and two ends of the telescopic guide shaft 355 are respectively fixedly connected to the top plate 352 and the supporting plate 353, and a rubber dustproof sleeve is further disposed between the top plate 352 and the supporting plate 353 and is sleeved outside the buffer spring 354. In the implementation, the pull rod 351 is connected with the driving device, and the driving device drives the pull rod 351 to move upwards in an emergency, so that the brake wedge 35 moves upwards along the guide wedge 34 until the buffer column is abutted with the brake shell 10, and the brake wedge 35 continues to move upwards until the friction plate 36 clamps the guide rail 20, and the buffer column is compressed in the process.
In the non-braking condition, the electromagnet 32 is in the power-on state, the return spring 33 is in the maximum compression state, the guide wedge 34 is in clearance fit with the brake wedge 35, and a certain interval exists between the brake wedge 35 and the guide rail 20, so that the elevator can normally run.
In the first stage of braking, the controller controls the electromagnet 32 to be de-energized, the return spring 33 is extended, so that the guide wedge 34 moves towards the guide rail 20, and at the same time, the driving device drives the brake wedge 35 to move upwards until the buffer column is abutted to the brake housing 10, and the driving device is closed. In the second phase, the braking wedge 35 continues to move upward along the guide wedge 34 under the inertia until the rail 20 is completely clamped, and at the same time, the guide wedge 34 and the braking wedge 35 are engaged with each other.
During resetting, by energizing the electromagnet 32, the electromagnet 32 attracts the guide wedge 34, so that a gap is formed between the guide wedge 34 and the brake wedge 35, so as to remove friction of the guide wedge 34 on the brake wedge 35, and facilitate resetting of the brake wedge 35.
Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (5)
1. An elevator safety gear, its characterized in that: including brake housing (10), brake housing (10) and guide rail (20) sliding connection, brake housing (10) all is provided with installation cavity (30) in the both sides of guide rail (20), installation cavity (30) all are provided with the braking hole in the one side that is close to guide rail (20), one side that guide rail (20) were kept away from in installation cavity (30) is provided with electro-magnet (32), electro-magnet (32) electricity is connected with the controller, reset spring (33), direction voussoir (34) and braking voussoir (35) have set gradually between electro-magnet (32) and the braking hole, the both ends of reset spring (33) respectively with direction voussoir (34), electro-magnet (32) fixed connection, direction voussoir (34) with installation cavity (30) sliding connection, the top of braking voussoir (35) is provided with pull rod (351), and every the equal fixedly connected with two in top of braking voussoir (35) are on a parallel with the slow parallel with pull rod (351) And (5) punching the column.
2. An elevator safety gear according to claim 1, characterized in that: and a friction plate (36) is arranged on one side of the brake wedge block (35) close to the guide rail (20), and a plurality of anti-skidding teeth (362) are horizontally arranged on one side of the friction plate (36) facing the guide rail (20).
3. An elevator safety gear according to claim 2, characterized in that: the two ends of the friction plate (36) are provided with mounting plates (361) perpendicular to the friction plate (36), a plurality of through holes are formed in the mounting plates (361), and mounting holes corresponding to the through holes are formed in the top and the bottom of the braking wedge block (35).
4. An elevator safety gear according to claim 1, characterized in that: the guide wedge block (34) is further provided with a plurality of guide rollers (342) on the contact surface with the brake wedge block (35), and the guide rollers (342) are rotatably connected with the guide wedge block (34).
5. An elevator safety gear according to claim 1, characterized in that: the buffer column comprises a top plate (352) and a supporting plate (353), a buffer spring (354) is arranged between the top plate (352) and the supporting plate (353), a telescopic guide shaft (355) is arranged inside the buffer spring (354), and two ends of the buffer spring (354) and the telescopic guide shaft (355) are fixedly connected with the top plate (352) and the supporting plate (353) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022015432.3U CN213085114U (en) | 2020-09-15 | 2020-09-15 | Elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022015432.3U CN213085114U (en) | 2020-09-15 | 2020-09-15 | Elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213085114U true CN213085114U (en) | 2021-04-30 |
Family
ID=75635351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022015432.3U Expired - Fee Related CN213085114U (en) | 2020-09-15 | 2020-09-15 | Elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213085114U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860114A (en) * | 2021-09-13 | 2021-12-31 | 大赛璐安全系统(江苏)有限公司 | Safety gear additional propulsion device for preventing elevator from falling |
| CN113896072A (en) * | 2021-09-10 | 2022-01-07 | 伟龙意程智能科技(江苏)有限公司 | Safety tongs that wedge block type braking element constitutes for elevator |
| CN114275646A (en) * | 2021-12-20 | 2022-04-05 | 伟龙意程智能科技(江苏)有限公司 | Stable elevator safety tongs capable of reducing equipment loss |
| CN114538242A (en) * | 2022-02-28 | 2022-05-27 | 南通中力科技有限公司 | Mechanical speed-limiting elevator safety tongs with high safety |
-
2020
- 2020-09-15 CN CN202022015432.3U patent/CN213085114U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896072A (en) * | 2021-09-10 | 2022-01-07 | 伟龙意程智能科技(江苏)有限公司 | Safety tongs that wedge block type braking element constitutes for elevator |
| CN113896072B (en) * | 2021-09-10 | 2023-02-14 | 伟龙意程智能科技(江苏)有限公司 | Safety tongs that wedge block type braking element constitutes for elevator |
| CN113860114A (en) * | 2021-09-13 | 2021-12-31 | 大赛璐安全系统(江苏)有限公司 | Safety gear additional propulsion device for preventing elevator from falling |
| CN114275646A (en) * | 2021-12-20 | 2022-04-05 | 伟龙意程智能科技(江苏)有限公司 | Stable elevator safety tongs capable of reducing equipment loss |
| CN114275646B (en) * | 2021-12-20 | 2023-07-18 | 伟龙意程智能科技(江苏)有限公司 | Stable elevator safety tongs capable of reducing equipment loss |
| CN114538242A (en) * | 2022-02-28 | 2022-05-27 | 南通中力科技有限公司 | Mechanical speed-limiting elevator safety tongs with high safety |
| CN114538242B (en) * | 2022-02-28 | 2023-10-31 | 南通中力科技有限公司 | Mechanical speed-limiting elevator safety tongs with high safety |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213085114U (en) | Elevator safety tongs | |
| US11325810B2 (en) | Traction sheave safety device and elevator car emergency stop method thereof | |
| CN102701040B (en) | Constant brake force anti-falling catching device and constant brake force anti-falling catching method for rigid cage guide of mine | |
| CN101565145A (en) | Novel progressive safety tongs | |
| CN105480890B (en) | Disc locking device and braking method thereof | |
| JP5501995B2 (en) | Elevator equipment | |
| CN114249204A (en) | Safety tongs for multi-car parallel elevator | |
| CN202107401U (en) | Emergency braking device clamped on traction sheave of tractor | |
| CN114746353B (en) | Elevator and emergency stop device thereof | |
| CN209275953U (en) | A kind of elevator with brake apparatus | |
| CN102275796A (en) | Emergency braking device clamped on traction wheel of traction machine | |
| CN206901528U (en) | The anti-shearing arrest systems of sensitive-type elevator | |
| CN215487327U (en) | Caliper type brake | |
| CN215101323U (en) | Anti-falling protection device for machine-room-less freight elevator | |
| JP4288933B2 (en) | Low press elevator equipment | |
| CN219156221U (en) | Emergency braking device for elevator | |
| CN112573322B (en) | Elevator prevents unexpected quick arresting gear who removes | |
| CN213802697U (en) | Elevator brake with non-return cam | |
| CN216004836U (en) | Elevator overspeed governor drive mechanism | |
| CN214383640U (en) | Safety tongs for elevator | |
| CN219448922U (en) | Elevator overspeed protection device | |
| CN220264840U (en) | Safety tongs lifting mechanism for elevator | |
| CN219449159U (en) | Elevator traction sheave | |
| CN217148214U (en) | Anti-drop's elevator car | |
| CN212450163U (en) | Elevator upper beam assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210430 Termination date: 20210915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |