CN109592534B - Elevator safety tongs - Google Patents
Elevator safety tongs Download PDFInfo
- Publication number
- CN109592534B CN109592534B CN201710938200.5A CN201710938200A CN109592534B CN 109592534 B CN109592534 B CN 109592534B CN 201710938200 A CN201710938200 A CN 201710938200A CN 109592534 B CN109592534 B CN 109592534B
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- Prior art keywords
- rod
- fixedly connected
- rods
- straight
- chain
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- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to an elevator safety tongs, wherein two sides of an elevator vertically move along guide rails, the safety tongs comprise friction plates arranged at two sides of each guide rail, wedge-shaped push blocks fixedly connected with the back surfaces of the friction plates, push rods for pushing the push blocks and power units for driving the push rods to move, and when braking is needed, the power units push the push blocks to move in opposite directions through the push rods, so that the friction plates tightly hold the guide rails to finish braking. Compared with the prior art, the invention has simple structure, and the friction plate tightly holds the guide rail by the wedge-shaped push block, so that the braking effect is good; and the selected power unit has strong power and lower cost.
Description
Technical Field
The invention relates to the technical field of elevator safety devices, in particular to an elevator safety tongs.
Background
At present, the elevator is widely applied, and great convenience is brought to life, so the safety of the elevator must be ensured. When the elevator falls in emergency, the speed is too high, and the elevator overspeed governor can rapidly drive the safety gear to clamp the elevator guide rail after overspeed detection. The existing safety tongs are complex in structure and high in manufacturing cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the elevator safety tongs with simple structure.
The aim of the invention can be achieved by the following technical scheme: the utility model provides an elevator safety tongs, this elevator's both sides are perpendicular motion along the guide rail, the safety tongs is including setting up the friction disc in every guide rail both sides, be wedge ejector pad, be used for pulling the pull rod of ejector pad and be used for driving the power pack of pull rod motion with every friction disc back fixed connection, when needs braking, power pack passes through the pull rod and pulls the ejector pad and move in opposite directions to make the friction disc tightly hold the guide rail, accomplish the braking.
The top cross section of the pushing block is right trapezoid, the side face corresponding to the upper bottom edge is fixedly connected with the friction plate, and the pull rod is in sliding connection with the side face corresponding to the bevel edge.
The middle part of the side corresponding to the bevel edge is provided with a sliding groove which is horizontally arranged.
The pull rod is T-shaped and comprises two straight rods which are perpendicular to each other and horizontally arranged, wherein two ends of the first straight rod are provided with sliding blocks matched with the sliding grooves, the sliding blocks are slidably connected in the sliding grooves of the two pushing blocks, one end of the second straight rod is fixedly connected with the center of the first straight rod, and the other end of the second straight rod is connected with the power unit. Because the push blocks are right trapezoid, and the sliding groove is formed in the inclined edge, when the pull rod is pulled forwards, the sliding block wants to move inwards along the sliding groove, but because the length of the first straight rod cannot be changed, the two push blocks can only be close to each other, and therefore the friction plate is pulled to hold the guide rail tightly, and a braking effect is achieved.
The power unit comprises a driving motor, a driving wheel which is connected with a main shaft of the driving motor and rotates in the horizontal direction, a driven wheel which is connected with the driving wheel through a chain, and two transmission rods which are fixedly connected with the chain, wherein the other end of each transmission rod is fixedly connected with a pull rod.
The transmission rods are connected with the chain which is positioned between the driving wheel and the driven wheel and is in a straight line, and the two transmission rods are respectively connected with two straight line sections of the chain.
The transmission rod is L-shaped, one side of the transmission rod is fixedly connected with the chain, and the other side of the transmission rod is fixedly connected with the pull rod.
Compared with the prior art, the invention has the beneficial effects that:
(1) The structure is simple, the friction plate tightly holds the guide rail through the wedge-shaped push block, and the braking effect is good;
(2) The selected power unit has strong power and lower cost.
Drawings
FIG. 1 is a schematic view of a friction plate, push block and pull rod according to the present invention;
fig. 2 is a schematic diagram of the power unit of the present invention.
Wherein, 1 is the friction disc, 2 is the ejector pad, 3 is the spout, 4 is the slider, and 5 is a straight-bar, and 6 is a straight-bar, and 7 is driving motor, and 8 is the action wheel, and 9 is the follow driving wheel, and 10 is the chain, and 11 is the transfer line.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Example 1
The elevator safety tongs comprises friction plates arranged on two sides of each guide rail, wedge-shaped push blocks fixedly connected with the back surfaces of the friction plates, pull rods for pulling the push blocks and power units for driving the pull rods to move.
The top-view section of the push block 2 is in a right trapezoid shape, the side face corresponding to the upper bottom edge is fixedly connected with the friction plate 1, the pull rod is in sliding connection with the side face corresponding to the inclined edge, and a sliding groove 3 which is horizontally arranged is arranged in the middle of the side face corresponding to the inclined edge of the push block. The pull rod is T-shaped, including two mutually perpendicular and horizontally arranged straight-bars, wherein the both ends of straight-bar 5 are equipped with the slider 4 with spout 3 assorted, and sliding connection is in the spout 3 of two ejector pad 2, the one end of straight-bar 6 and the center fixed connection of straight-bar 5, the other end is connected with power unit, specific structure is as shown in figure 1, because ejector pad 2 is right trapezoid, and set up spout 3 on the hypotenuse, so when the pull rod pulling forward, slider 4 wants to inwards remove along spout 3, but because the length of straight-bar 5 can' T change, two ejector pads 2 can only be close to each other, thereby pulling friction disc 1 holds tightly the guide rail, play the braking effect.
The structure of the power unit is shown in fig. 2, and the power unit comprises a driving motor 7, a driving wheel 8 which is connected with a main shaft of the driving motor 7 and rotates in the horizontal direction, a driven wheel 9 which is connected with the driving wheel 8 through a chain 10, and two transmission rods 11 which are fixedly connected with the chain 10, wherein the other end of each transmission rod 11 is fixedly connected with a second straight rod 6.
The transmission rod 11 is connected with a chain 10 which is positioned between the driving wheel 8 and the driven wheel 9 and is in a straight line, and the two transmission rods 11 are respectively connected with two straight line sections of the chain 10, in fig. 2, when the driving wheel rotates clockwise, the chain 10 also rotates clockwise, so that the left second straight rod 6 is pulled to move leftwards, and the right second straight rod 6 moves rightwards.
The transmission rod 11 is L-shaped, one side of the transmission rod is fixedly connected with the chain 10, and the other side of the transmission rod is fixedly connected with the second straight rod 6.
Claims (1)
1. The elevator safety tongs are characterized by comprising friction plates arranged on two sides of each guide rail, wedge-shaped push blocks fixedly connected with the back surfaces of the friction plates, pull rods for pulling the push blocks and power units for driving the pull rods to move, wherein when braking is required, the power units pull the push blocks to move in opposite directions through the pull rods, so that the friction plates tightly hold the guide rails, and braking is completed;
the top cross section of the pushing block is in a right trapezoid shape, the side face corresponding to the upper bottom edge is fixedly connected with the friction plate, and the pull rod is in sliding connection with the side face corresponding to the bevel edge;
the middle part of the side surface corresponding to the bevel edge is provided with a horizontally arranged chute;
The pull rod is in a T shape and comprises two straight rods which are perpendicular to each other and are horizontally arranged, two ends of the first straight rod are provided with sliding blocks which are matched with the sliding grooves, the sliding blocks are in sliding connection with the sliding grooves of the two pushing blocks, one end of the second straight rod is fixedly connected with the center of the first straight rod, and the other end of the second straight rod is connected with the power unit;
The power unit comprises a driving motor, a driving wheel which is connected with a main shaft of the driving motor and rotates in the horizontal direction, a driven wheel which is connected with the driving wheel through a chain, and two transmission rods which are fixedly connected with the chain, wherein the other end of each transmission rod is fixedly connected with a pull rod;
The transmission rods are connected with a chain which is positioned between the driving wheel and the driven wheel and is in a straight line, and the two transmission rods are respectively connected with two straight line sections of the chain;
the transmission rod is L-shaped, one side of the transmission rod is fixedly connected with the chain, and the other side of the transmission rod is fixedly connected with the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938200.5A CN109592534B (en) | 2017-09-30 | 2017-09-30 | Elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938200.5A CN109592534B (en) | 2017-09-30 | 2017-09-30 | Elevator safety tongs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109592534A CN109592534A (en) | 2019-04-09 |
| CN109592534B true CN109592534B (en) | 2024-04-26 |
Family
ID=65956149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710938200.5A Active CN109592534B (en) | 2017-09-30 | 2017-09-30 | Elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109592534B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116403A (en) * | 2019-06-25 | 2019-08-13 | 公安部第一研究所 | A kind of the small-sized machine clamping jaw and its method of big stroke |
| CN110568287B (en) * | 2019-09-12 | 2024-06-04 | 华中科技大学 | Corner sample rod for electric transport measurement |
| CN112520530B (en) * | 2021-01-21 | 2022-02-18 | 博仕通电梯有限公司 | Safety pin device for elevator maintenance |
| CN117326425B (en) * | 2023-12-01 | 2024-04-02 | 辛格林电梯有限公司 | Active safety elevator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201325807Y (en) * | 2008-11-27 | 2009-10-14 | 杭州沪宁电梯配件有限公司 | Safe clamp of elevator car |
| CN106241549A (en) * | 2016-08-30 | 2016-12-21 | 浙江西子富沃德电机有限公司 | A kind of elevator bidirectional safety tongs |
| CN205906859U (en) * | 2016-08-04 | 2017-01-25 | 广东精创机械制造有限公司 | Elevator safety tongs |
| CN106379793A (en) * | 2016-11-22 | 2017-02-08 | 中山南区电梯工程研究院有限公司 | Safety tongs for elevator and elevator device of elevator |
| CN106429707A (en) * | 2016-11-22 | 2017-02-22 | 中山南区电梯工程研究院有限公司 | Bidirectional safety tongs used in elevators and elevator device |
| CN106516933A (en) * | 2016-12-20 | 2017-03-22 | 刘英辉 | Electrodynamic type safety tong device and brake method of electrodynamic type safety tong device |
-
2017
- 2017-09-30 CN CN201710938200.5A patent/CN109592534B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201325807Y (en) * | 2008-11-27 | 2009-10-14 | 杭州沪宁电梯配件有限公司 | Safe clamp of elevator car |
| CN205906859U (en) * | 2016-08-04 | 2017-01-25 | 广东精创机械制造有限公司 | Elevator safety tongs |
| CN106241549A (en) * | 2016-08-30 | 2016-12-21 | 浙江西子富沃德电机有限公司 | A kind of elevator bidirectional safety tongs |
| CN106379793A (en) * | 2016-11-22 | 2017-02-08 | 中山南区电梯工程研究院有限公司 | Safety tongs for elevator and elevator device of elevator |
| CN106429707A (en) * | 2016-11-22 | 2017-02-22 | 中山南区电梯工程研究院有限公司 | Bidirectional safety tongs used in elevators and elevator device |
| CN106516933A (en) * | 2016-12-20 | 2017-03-22 | 刘英辉 | Electrodynamic type safety tong device and brake method of electrodynamic type safety tong device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109592534A (en) | 2019-04-09 |
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