CN106429707B - A kind of elevator bidirectional safety tongs and its lift appliance - Google Patents
A kind of elevator bidirectional safety tongs and its lift appliance Download PDFInfo
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- CN106429707B CN106429707B CN201611026261.6A CN201611026261A CN106429707B CN 106429707 B CN106429707 B CN 106429707B CN 201611026261 A CN201611026261 A CN 201611026261A CN 106429707 B CN106429707 B CN 106429707B
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- sliding block
- safety tongs
- elevator
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- 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)
Abstract
The invention discloses a kind of elevator bidirectional safety tongs, including the first safety tongs, and second safety tongs that is oppositely arranged identical as the described first safe wrench structure and the attachment device for connecting first safety tongs and the second safety tongs, first safety tongs is located at the top of second safety tongs, first safety tongs and the second safety tongs include shell, it is fixed on the public sliding block of the interior of shell, it is set to the female sliding block and drive rod of the interior of shell, the quantity of the public affairs sliding block is two, it is respectively arranged at the two sides of the shell and is firmly connected with it, the quantity of mother's sliding block is two, the described two female sliding blocks of drive rod connection, the attachment device connects female sliding block of the first safety tongs and female sliding block of the second safety tongs.Elevator bidirectional safety tongs provided by the invention avoid the phenomenon that lateral impact forces and elevator rising of the elevator in the case where emergency braking exceed the speed limit.
Description
Technical field
The present invention relates to technical field of elevator manufacturing more particularly to a kind of elevator bidirectional safety tongs and its lift appliance.
Background technique
Elevator safety gear is under the manipulation of limiter of speed, after the failures very serious such as hypervelocity, disconnected rope occurs in elevator, by sedan-chair
The urgent stop in compartment is simultaneously clamped in a kind of safety device on guide rail, it provides effective protective effect to the safe operation of elevator.
Current existing elevator safety gear is all made of unilateral sliding block and is braked, and only can be carried out one-way brake, and elevator goes out
Now when the failure very serious such as hypervelocity, disconnected rope, the passenger in lift car is by impact force rapidly downward or upward, safety
Emergency braking is clamped, since safety tongs is unilateral sliding block braking, so that guide rail phase side deviates rapidly, carriage follows guide rail toward side
Offset, therefore people will receive rapid lateral impact forces again, cause passenger's secondary injury, another aspect, if elevator overspeed to
On when driving, can not be braked, therefore, it is necessary to propose a kind of novel bidirectional safety tongs for elevator and its lift appliance, solution
Certainly problem above.
The present invention provides a kind of elevator bidirectional safety tongs and its lift appliance, two-way using bilateral sliding block emergency braking
Braking, so that elevator, in emergency braking, the passenger in carriage reduces casualties, improve elevator from lateral impact forces
Security performance.
Summary of the invention
Technical problem to be solved by the present invention lies in provide the present invention and provide a kind of elevator bidirectional safety tongs and its electricity
Ladder device, using bilateral sliding block emergency braking, bi-directional braking, so that elevator, in emergency braking, the passenger in carriage is from cross
To impact force, casualties is reduced, the security performance of elevator is improved.
The technical problems to be solved by the invention also reside in, and provide a kind of elevator bidirectional safety tongs, including the first safety
Pincers, and second safety tongs that is oppositely arranged identical as the described first safe wrench structure and for connect first safety tongs and
The attachment device of second safety tongs, first safety tongs are located at the top of second safety tongs, first safety tongs and
Second safety tongs include shell, the male sliding block for being fixed on the interior of shell, be set to female sliding block of the interior of shell with
And drive rod, the shell include the first installation position, second piece of installation position and link slot, first installation position and second are installed
Position is located at the both ends of the shell, and first installation position and second installation position are provided with public sliding block installation position,
The quantity of the public affairs sliding block is two, is respectively arranged at the two sides of the shell and is firmly connected with it, the number of mother's sliding block
Amount is two, is matched with the public sliding block, and mother's sliding block and the male sliding block are mutually chimeric, and chimeric surface is inclined-plane, institute
The described two female sliding blocks of drive rod connection are stated, the attachment device connects female sliding block of the first safety tongs and the mother of the second safety tongs
Sliding block.
Preferably, the shell is in semi-enclosed cavity structure, and first installation position and second installation position are in mirror image
Symmetrical structure.
Preferably, the public sliding block is set to the public sliding block installation position of the shell, and two public sliding blocks are oppositely arranged,
And be fixedly connected with the shell, it is connected by screw between the public affairs sliding block and the shell, the public affairs sliding block includes setting
Dovetail link slot in its inclined-plane.
Preferably, the section structure in a rectangular trapezoid of the public sliding block, the bottom of the ladder structure of right angle and bevel edge
Between angle be 75-83 degree.
Preferably, the section structure in a rectangular trapezoid of the public sliding block, the bottom of the ladder structure of right angle and bevel edge
Between angle be 80 degree.
Preferably, female sliding block and the male sliding block are mutually chimeric, the trapezoidal structure in section, the right-angled trapezium knot
Angle between the bottom of structure and bevel edge is equal with the angle between the bottom of the public sliding block of the trapezium structure and bevel edge.
Preferably, the shape, size and shape, the size of the male sliding block on the inclined-plane of female sliding block match, and wrap
Include setting dovetail attachment.
Preferably, shape, the size and location of the dovetail attachment and the dovetail link slot match.
A kind of lift appliance based on elevator bidirectional safety tongs including guide rail, carriage, is set to the cage bottom
At least two elevator bidirectional safety tongs, limiter of speed and connector, elevator bidirectional safety tongs include the first peace
Full pincers and the second safety tongs, first safety tongs and the second safe wrench structure are identical, are oppositely arranged, and include shell, public sliding
Block, female sliding block and drive rod, the trapezoidal structure of mother's sliding block, the guide rail are set to the elevator bidirectional safety tongs
Middle position, the female sliding block of two of elevator bidirectional safety tongs are located at the two sides of the guide rail.
Preferably, the trapezoidal structure of the public sliding block, upward, second is safe for the bottom of the public sliding block of first safety tongs
Downward, the connector is connected with the limiter of speed for the bottom of the public sliding block of pincers.
Implement the embodiment of the present invention, has the following beneficial effects:
1, elevator bidirectional safety tongs provided by the invention, the safety tongs being oppositely arranged using two, each safety tongs are equal
The emergency braking of elevator is realized using two female sliding blocks, on the one hand, avoid lateral punching of elevator in the case where emergency braking
The phenomenon that hitting power, bringing secondary injury to ladder personnel generation improves the security performance of elevator, on the other hand avoids on elevator
Rise the phenomenon that exceeding the speed limit.
2, the bottom of elevator bidirectional safety tongs provided by the invention, the male sliding block of ladder structure of right angle and female sliding block and tiltedly
Angle between side is 75-83 degree, and angle is excessive, and when emergency episode occurs, safety tongs retro-speed is excessively slow, and lift car slides
Distance it is too long, be easy hit ground, bring more powerful impact force angle too small, when emergency episode occurs, safety
Clamp brake excessive velocities also can bring injury to the passenger in carriage, further improve the security performance of elevator.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of elevator bidirectional safety tongs of the present invention；
Fig. 2 is the enlarged drawing in the portion A in Fig. 1；
Fig. 3 is the structural schematic diagram of the shell of elevator bidirectional safety tongs of the present invention；
Fig. 4 is the structural schematic diagram of the public sliding block of elevator bidirectional safety tongs of the present invention；
Fig. 5 is the structural schematic diagram of female sliding block of elevator bidirectional safety tongs of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.Only this is stated, the present invention occurs in the text or will occur up, down, left, right, before and after, it is inside and outside etc. just
Position word is not to specific restriction of the invention only on the basis of attached drawing of the invention.
Referring to attached drawing 1-5, the invention discloses a kind of elevator bidirectional safety tongs, including the first safety tongs 100, with it is described
First safety tongs, 100 structure is identical and the second safety tongs 200 for being oppositely arranged and for connect first safety tongs 100 with
And second safety tongs 200 attachment device 300, first safety tongs 100 is located at the top of second safety tongs 200, institute
State the first safety tongs 100 and the second safety tongs 200 include shell 1, be fixed on inside the shell 1 public sliding block 2, be set to
The quantity of female sliding block 3 and drive rod 4 inside the shell 1, the public affairs sliding block 2 is two, is respectively arranged at the shell 1
Two sides and be firmly connected with it, the quantity of mother's sliding block 3 is two, is matched with the public sliding block 2, mother's sliding block 3
It is mutually chimeric with the public sliding block 2, and chimeric surface is inclined-plane, the drive rod 4 connects described two female sliding blocks, the connection dress
Set female sliding block of 300 the first safety tongs of connection 100 and female sliding block of the second safety tongs 200.
The shell 1 is in semi-enclosed cavity structure, including 11, second pieces of the first installation position installation position 12 and link slot 13,
First installation position 11 and the second installation position 12 are located at the both ends of the shell 1, first installation position 11 with it is described
Second installation position 12 is in mirror image, is provided with public sliding block installation position 10, the link slot 13 is for installing the company
Connection device connects female sliding block of first safety tongs 100 and female sliding block of the second safety tongs 200 convenient for the attachment device.
The public affairs sliding block 2 is set to the public sliding block installation position 10 of the shell 1, and two public sliding blocks are oppositely arranged, and
It is fixedly connected with the shell 1, is connected by screw between the public affairs sliding block 2 and the shell 1.The section of the public affairs sliding block 2
Structure in a rectangular trapezoid, the angle between the bottom and bevel edge of the ladder structure of right angle are 75-83 degree, when bottom and tiltedly
Angle between side is greater than 83 degree, and when emergency episode occurs, safety tongs retro-speed is excessively slow, the distance mistake that lift car slides
It is long, it is easy hit ground, brings more powerful impact force, to not can be well protected the passenger in carriage, instantly
Angle between bottom edge and bevel edge is less than 75 degree, and when emergency episode occurs, safety tongs retro-speed is too fast, also can be in carriage
Passenger brings injury；More preferably, the angle between the bottom and bevel edge of the ladder structure of right angle is 76,77,78,79,80,
81,82 degree, most preferably, the angle between the bottom and bevel edge of the ladder structure of right angle is 80 degree.The public affairs sliding block is maximum wide
Degree is equal with the width of the public sliding block installation position, when the elevator is installed on elevator with bidirectional safety tongs, first peace
Upward, the bottom of the public sliding block of the second safety tongs 200 is downward for the bottom of the public sliding block of full pincers 100.
The public affairs sliding block 2 includes the dovetail link slot 21 for being set to its inclined-plane, for realizing the male sliding block 2 and the mother
Connection and sliding between sliding block 3.
Mother sliding block 3 and mutual chimeric, the trapezoidal structure in section of the male sliding block 2, the ladder structure of right angle
Angle between bottom and bevel edge is equal with the angle between the bottom of the public sliding block 2 of the trapezium structure and bevel edge, institute
The shape, size and shape, the size of the male sliding block 2 for stating the inclined-plane of female sliding block 3 match comprising setting dovetail attachment
31, shape, the size and location of the dovetail attachment 31 and the dovetail link slot 21 match.
The present invention realizes the Qian He between male sliding block 2 and female sliding block 3, the public affairs sliding block 2 and institute using dovetail configuration
State opposite can slide between female sliding block 3 under force, when being installed on the elevator bidirectional safety tongs, the public affairs sliding block
2 form rectangle with the mutually chimeric rear section of female sliding block 3.
The drive rod 4 connects described two pieces female sliding blocks 3, when female 4 forced-slip of sliding block, described in another
Female sliding block 3 slides together under the action of drive rod 4, to realize the effect of the bilateral braking of the safety tongs.
Based on the lift appliance of elevator bidirectional safety tongs of the present invention, including guide rail, carriage, it is set to the cage bottom
At least two elevator bidirectional safety tongs, limiter of speed and connector, the elevator with bidirectional safety tongs include first
Safety tongs and the second safety tongs, first safety tongs and the second safe wrench structure are identical, are oppositely arranged, and include shell, public affairs
Sliding block, female sliding block and drive rod, the trapezoidal structure of mother's sliding block, the guide rail are set to the elevator bidirectional safety tongs
Middle position, two of elevator bidirectional safety tongs female sliding blocks are located at the two sides of the guide rail, the public affairs sliding block
Trapezoidal structure, upward, the bottom of the public sliding block of the second safety tongs is downward, described for the bottom of the public sliding block of first safety tongs
Connector is connected with the limiter of speed.
When hypervelocity rising occurs in lift appliance of the invention, first safety tongs follows carriage to move upwardly together, limit
The stop motion under the influence of the impact force of fast device, the female sliding block also stop motion being connected with the limiter of speed, therefore, female sliding block
The public sliding block of relatively described first safety tongs moves downward, as female sliding block moves downward, between two female sliding blocks
Spacing be gradually reduced, to gradually clamp the guide rail, finally clamp the guide rail stop motion, be set to the safety tongs
On carriage also together stop hypervelocity rise, realize the emergency braking of elevator.
After there is urgent tenesmus or disconnected rope failure in lift appliance of the invention, second safety tongs follow carriage together to
Lower movement, limiter of speed stop motion under the influence of the impact force, the female sliding block also stop motion being connected with the limiter of speed, because
This, the male sliding block of relatively described second safety tongs of female sliding block moves upwards, as female sliding block moves upwards, two mothers
Spacing between sliding block is gradually reduced, to gradually clamp the guide rail, is finally clamped the guide rail stop motion, is set to institute
It states the carriage on safety tongs and also stops tenesmus movement together, realize the emergency braking of elevator.
Implement the embodiment of the present invention, has the following beneficial effects:
1, elevator bidirectional safety tongs provided by the invention, the safety tongs being oppositely arranged using two, each safety tongs are equal
The emergency braking of elevator is realized using two female sliding blocks, on the one hand, avoid lateral punching of elevator in the case where emergency braking
The phenomenon that hitting power, bringing secondary injury to ladder personnel generation improves the security performance of elevator, on the other hand avoids on elevator
Rise the phenomenon that exceeding the speed limit.
2, the bottom of elevator bidirectional safety tongs provided by the invention, the male sliding block of ladder structure of right angle and female sliding block and tiltedly
Angle between side is 75-83 degree, and angle is excessive, and when emergency episode occurs, safety tongs retro-speed is excessively slow, and lift car slides
Distance it is too long, be easy hit ground, bring more powerful impact force angle too small, when emergency episode occurs, safety
Clamp brake excessive velocities also can bring injury to the passenger in carriage, further improve the security performance of elevator.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of elevator bidirectional safety tongs, which is characterized in that including the first safety tongs, identical as the described first safe wrench structure
And the second safety tongs being oppositely arranged and the attachment device for connecting first safety tongs and the second safety tongs, described
One safety tongs is located at the top of second safety tongs, and first safety tongs and the second safety tongs include shell, are fixed on
The male sliding block of the interior of shell, the female sliding block and drive rod for being set to the interior of shell, the shell include the first peace
Position, the second installation position and link slot are filled, first installation position and the second installation position are located at the both ends of the shell, described
First installation position and second installation position are provided with public sliding block installation position, and the quantity of the public affairs sliding block is two, set respectively
It being placed in the two sides of the shell and is firmly connected with it, the quantity of mother's sliding block is two, matches with the public sliding block, institute
It states female sliding block and the male sliding block is mutually chimeric, and chimeric surface is inclined-plane, the described two female sliding blocks of drive rod connection are described
Attachment device connects female sliding block of the first safety tongs and female sliding block of the second safety tongs；
When female sliding block forced-slip, another described female sliding block slides together under the action of the drive rod；
When hypervelocity rising, urgent tenesmus or disconnected rope failure occurs in elevator, the spacing between two mother's sliding blocks is gradually reduced, from
And gradually clamping guide-rail realizes braking.
2. elevator bidirectional safety tongs according to claim 1, which is characterized in that the shell is in semi-enclosed cavity knot
Structure, first installation position and second installation position are in mirror image.
3. elevator bidirectional safety tongs according to claim 2, which is characterized in that the public affairs sliding block is set to the shell
Public sliding block installation position, two public sliding blocks are oppositely arranged, and are fixedly connected with the shell, the public affairs sliding block and described outer
It is connected by screw between shell, the public affairs sliding block includes the dovetail link slot for being set to its inclined-plane.
4. elevator bidirectional safety tongs according to claim 1, which is characterized in that the section of the public affairs sliding block is at right angles terraced
Shape structure, the angle between the bottom and bevel edge of the ladder structure of right angle are 75-83 degree.
5. elevator bidirectional safety tongs according to claim 1, which is characterized in that the section of the public affairs sliding block is at right angles terraced
Shape structure, the angle between the bottom and bevel edge of the ladder structure of right angle are 80 degree.
6. elevator bidirectional safety tongs according to claim 4, which is characterized in that mother's sliding block and the male sliding block phase
It is mutually chimeric, the trapezoidal structure in section, angle and the trapezoidal knot between the bottom and bevel edge of the ladder structure of right angle
Angle between the bottom and bevel edge of female sliding block of structure is equal.
7. elevator bidirectional safety tongs according to claim 3, which is characterized in that the shape on the inclined-plane of mother's sliding block,
Size and shape, the size of the public sliding block match comprising dovetail attachment.
8. elevator bidirectional safety tongs according to claim 7, which is characterized in that the dovetail attachment and the dovetail
Shape, the size and location of link slot match.
9. a kind of lift appliance based on the described in any item elevator bidirectional safety tongs of claim 1-8, which is characterized in that packet
Include guide rail, carriage, at least two elevator bidirectional safety tongs, limiter of speed and the connection for being set to the cage bottom
Part, the elevator include the first safety tongs and the second safety tongs, first safety tongs and the second safety tongs with bidirectional safety tongs
Structure is identical, is oppositely arranged, and includes shell, male sliding block, female sliding block and drive rod, the trapezoidal structure of mother's sliding block, institute
State the middle position that guide rail is set to the elevator bidirectional safety tongs, the female sliding block point of two of the elevator bidirectional safety tongs
Not Wei Yu the guide rail two sides.
10. lift appliance according to claim 9, which is characterized in that the trapezoidal structure of the public affairs sliding block, first peace
The bottom of the public sliding block clamped entirely upward, the bottom of the public sliding block of the second safety tongs downward, the connector and the limiter of speed phase
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026261.6A CN106429707B (en) | 2016-11-22 | 2016-11-22 | A kind of elevator bidirectional safety tongs and its lift appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026261.6A CN106429707B (en) | 2016-11-22 | 2016-11-22 | A kind of elevator bidirectional safety tongs and its lift appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106429707A CN106429707A (en) | 2017-02-22 |
| CN106429707B true CN106429707B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611026261.6A Active CN106429707B (en) | 2016-11-22 | 2016-11-22 | A kind of elevator bidirectional safety tongs and its lift appliance |
Country Status (1)
| Country | Link |
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| CN (1) | CN106429707B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592534B (en) * | 2017-09-30 | 2024-04-26 | 上海龙钰电梯配件有限公司 | Elevator safety tongs |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319551A (en) * | 2000-04-14 | 2001-10-31 | 中国建筑科学研究院建筑机械化研究分院 | Bidirectional safety tongs for elevator |
| CN2711118Y (en) * | 2004-06-22 | 2005-07-20 | 河北东方机械厂 | Two-direction safety tongs |
| CN2721586Y (en) * | 2004-05-24 | 2005-08-31 | 宁波申菱电梯配件有限公司 | Bidirectional speed limited safety pliers for elevator |
| CN203392669U (en) * | 2013-07-29 | 2014-01-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional safety gear |
| CN105905739A (en) * | 2016-06-08 | 2016-08-31 | 中国船舶重工集团公司第七�三研究所 | Dual-purpose bidirectional safety tongs preventing accidental movement and overspeed |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5345041B2 (en) * | 2009-11-18 | 2013-11-20 | 株式会社日立製作所 | Elevator braking device |
-
2016
- 2016-11-22 CN CN201611026261.6A patent/CN106429707B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319551A (en) * | 2000-04-14 | 2001-10-31 | 中国建筑科学研究院建筑机械化研究分院 | Bidirectional safety tongs for elevator |
| CN2721586Y (en) * | 2004-05-24 | 2005-08-31 | 宁波申菱电梯配件有限公司 | Bidirectional speed limited safety pliers for elevator |
| CN2711118Y (en) * | 2004-06-22 | 2005-07-20 | 河北东方机械厂 | Two-direction safety tongs |
| CN203392669U (en) * | 2013-07-29 | 2014-01-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional safety gear |
| CN105905739A (en) * | 2016-06-08 | 2016-08-31 | 中国船舶重工集团公司第七�三研究所 | Dual-purpose bidirectional safety tongs preventing accidental movement and overspeed |
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| CN106429707A (en) | 2017-02-22 |
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Effective date of registration: 20171117 Address after: 528455 Guangdong province Zhongshan city first Road No. 6 the first floor of block B Applicant after: Zhongshan Tianda Elevator Technology Co., Ltd. Address before: 528455 Guangdong province Zhongshan City South Road No. 218-226 building the first layer six Applicant before: Zhongshan South Elevator Engineering Research Institute Co., Ltd. |
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