CN2571723Y - Progressive safety pliers - Google Patents
Progressive safety pliers Download PDFInfo
- Publication number
- CN2571723Y CN2571723Y CN 02253505 CN02253505U CN2571723Y CN 2571723 Y CN2571723 Y CN 2571723Y CN 02253505 CN02253505 CN 02253505 CN 02253505 U CN02253505 U CN 02253505U CN 2571723 Y CN2571723 Y CN 2571723Y
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- CN
- China
- Prior art keywords
- wedge blocks
- utility
- voussoir
- progressive safety
- model
- 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 - Lifetime
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model relates to a progressive safety pliers which comprises a bracket and a U-shaped spring. In the utility model, slide blocks, rolling needle members and wedge blocks are respectively installed on the left side and the right side in the U-shaped spring from the outer part to the inner part; a lift guiding rail is arranged between the two wedge blocks; guiding blocking pieces are respectively arranged on the front end surface and the back end surface of each slide block; the guiding edge of each guiding blocking piece is respectively matched with grooves on the front end surfaces and the back end surfaces of wedge blocks; draw rod components are arranged after the wedge blocks; the upper end surface and the lower end surface of the bracket are respectively provided with at least two positioning screws which separately block between the two slide blocks. When the progressive safety pliers is used for adjusting desired braking force, because of the spacing function of the positioning screws, distance between the wedge blocks and the lift guiding rail can not be reduced, two sets of distance adjusting mechanisms have no need for being arranged on the lower end surfaces of the wedge blocks or the bottom of the bracket, the progressive safety pliers can be used for adjusting the distance between the wedge blocks and the lift guiding rail. The purpose of the utility model is to provide a progressive safety pliers which has the advantages of simple structure, small size, low cost, convenient use and repair and high safety.
Description
Technical field
The utility model relates to a kind of progressive safety gear that is used for elevator, particularly relate to a kind of when the elevator operation surpasses command speed, the instruction of sending according to control signal, make braking voussoir generation effect in the safety tongs device, make overspeed elevator stopping on cage guide and keep the safety tongs device of quiescence.
Background technology
Domestic existing lift car safety apparatus is divided into instantaneous safety, and spring assembly promptly is not set, and progressive safety gear, promptly is provided with spring assembly, this two big class.In the instantaneous safety that spring assembly is not set, the stopping distance of safety tongs is short, and the braking impulsive force is excessive, generally is not suitable for elevator and uses.The progressive safety gear that is provided with spring assembly mainly is made up of main parts size such as caliper, tong arm, axis pin of the spring, spring assembly, slide block, voussoirs.Though this safety tongs has stop distance, the little advantage of braking impulsive force, but progressive safety gear is after adjusting required braking force, the A/F of its U-shaped spring can change, cause the distance between voussoir and the guide rail to diminish, in order to adjust the distance between voussoir and the guide rail, must be in the voussoir lower surface or frame bottom two cover distance adjustors are set, be used to adjust the distance between voussoir and the guide rail, consequently strengthened the caliper size, cause caliper mechanism complexity, manufacturing cost is higher.Therefore, the existing progressive safety gear that is used for elevator need improve.
The utility model content
The purpose of this utility model provides a kind of simple in structure, and volume is little, and cost is low, keeps in repair progressive safety gear easy to use, safe and reliable.
When surpassing specified running velocity in running process of elevator, safety tongs device can produce mechanical action makes elevator stopping on guide rail and keep quiescence.For this reason, the utility model provides a kind of progressive safety gear, comprise support, the U-shaped spring, left side in the U-shaped spring, right both sides are from being separately installed with a slide block outside to inside, needle roller parts and voussoir, be provided with cage guide between two voussoirs, before each described slide block, aft end face is respectively equipped with the guiding catch, each the guiding catch guide edge respectively with described voussoir before, groove on the aft end face matches, the back of voussoir is provided with tie component, on the described support, following both ends of the surface are respectively equipped with at least two fixing screws, and fixing screw keeps off respectively between two described slide blocks.
Progressive safety gear of the present utility model, wherein the upper/lower terminal of each described slide block is respectively equipped with boss, and described fixing screw keeps off respectively at boss on the side of described cage guide.
Progressive safety gear of the present utility model, the height of wherein said support is less than 156mm.
The progressive safety gear that the utility model provides, on its support, following two ends are respectively equipped with at least two fixing screws, fixing screw keeps off respectively at each slide block on the side of cage guide, when progressive safety gear is adjusted required braking force, because the position-limiting action of fixing screw is arranged, distance between voussoir and the cage guide is diminished, so need be in the voussoir lower surface yet or frame bottom two cover distance adjustors are set, be used to adjust the distance between voussoir and the cage guide, therefore, progressive safety gear of the present utility model has simple in structure, volume is little, cost is low, keeps in repair characteristics easy to use, safe and reliable.
Description of drawings
Fig. 1 is the main pseudosection of the progressive safety gear that provides of the utility model;
Fig. 2 is the top plan view of Fig. 1.
The specific embodiment
By Fig. 1 and Fig. 2 as can be seen, progressive safety gear of the present utility model comprises support 1, U-shaped spring 2, and the height of support 1 can be less than 156mm.And arranged on left and right sides in U-shaped spring 2 is from being separately installed with a slide block 3, needle roller parts 4 and voussoir 5 outside to inside, be provided with cage guide 11 between two voussoirs 5, the front and rear end of each described slide block 3 is respectively equipped with guiding catch 6, four guiding catch 6 adopt usually and are bolted on the slide block 3, the guide edge 7 of each guiding catch 6 matches with groove 8 on the front and rear end of described voussoir 5 respectively, when voussoir 5 longitudinally moved, the guide edge 7 bootable voussoirs 5 of each guiding catch 6 moved on needle roller parts 4.Be provided with tie component 9 in the back of voussoir 5, tie component 9 adopts a block plate to be bent into L shaped usually, a pull bar is fixed in welding on steel plate again, the horizontal edge that tie component 9 is bent into L shaped steel plate is provided with two slotted holes, tie component 9 is bent into the lower surface that the horizontal edge of L shaped steel plate catches on two voussoirs 5, and pass the horizontal edge that is bent into L shaped steel plate with adjustable bolt respectively and be provided with two slotted holes and carry out spacing tie component 9, when two voussoirs 5 were upwards drawn in the lower end that tie component 9 catches on two voussoirs 5, adjustable bolt can be provided with on being bent into the horizontal edge of L shaped steel plate in two slotted holes along laterally sliding.
Upper/lower terminal at support 1 is respectively equipped with two fixing screws 10, and fixing screw 10 keeps off respectively at each slide block 3 on the side of cage guide 11.Progressive safety gear of the present utility model also can be that the upper/lower terminal at each slide block 3 is respectively equipped with boss 12,13, and fixing screw 10 keeps off respectively at boss 12,13 on the side of cage guide 11.
The progressive safety gear that the utility model provides, on its support 1, following two ends are respectively equipped with two fixing screws 10, fixing screw 10 keeps off respectively at each slide block 3 on the side of cage guide 11, when progressive safety gear is adjusted required braking force, because the position-limiting action of fixing screw 10 is arranged, the open end of U-shaped spring 2 can only outwards open, can not shrink inwards, distance between voussoir 5 and the cage guide 11 is diminished, so need be in voussoir 5 lower surfaces yet or support 1 bottom two cover distance adjustors are set, be used to adjust the distance between voussoir 5 and the cage guide 11, therefore, progressive safety gear of the present utility model has simple in structure, volume is little, cost is low, keeps in repair characteristics easy to use, safe and reliable.
Progressive safety gear of the present utility model in use, when elevator moved with command speed downward or upward, safety tongs device was in normal working.When elevator moves above command speed downward or upward, the velocity limiter action, consequent tractive force makes two voussoir 5 upward movements by tie component 9, gap between two voussoirs 5 can constantly be reduced along with two voussoir 5 upward movements, and finally paste mutually with cage guide 11, along with two voussoirs 5 continue upward movement under the effect of tractive force, U-shaped spring 2 can be opened, so, two voussoirs 5 are under the effect of the elastic force of U-shaped spring 2, clamp cage guide 11, make the elevator stopping of upstream or downstream hypervelocity on cage guide 11, and keep quiescence.
Preferred embodiment recited above only is that the safety tongs device that the utility model provides is described, and is not to limit.Design of the present utility model and the scope of asking for protection all are documented in claims of the present utility model.
Claims (3)
1. progressive safety gear, comprise support (1), U-shaped spring (2), left side in the U-shaped spring (2), right both sides are from being separately installed with a slide block (3) outside to inside, needle roller parts (4) and voussoir (5), be provided with cage guide (11) between two voussoirs (5), before each described slide block (3), aft end face is respectively equipped with guiding catch (6), each the guiding catch (6) guide edge (7) respectively with described voussoir (5) before, groove on the aft end face (8) matches, the back of voussoir (5) is provided with tie component (9), it is characterized in that: on the described support (1), following both ends of the surface are respectively equipped with at least two fixing screws (10), and fixing screw (10) keeps off respectively between two described slide blocks (3).
2. according to the described safety tongs device of claim 1, it is characterized in that: the upper/lower terminal of each described slide block (3) is respectively equipped with boss (12,13), and described fixing screw (10) keeps off respectively at boss (12,13) on the side of described cage guide (11).
3. according to claim 1 or 2 described safety tongs devices, it is characterized in that: the height of described support (1) is less than 156mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253505 CN2571723Y (en) | 2002-09-05 | 2002-09-05 | Progressive safety pliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253505 CN2571723Y (en) | 2002-09-05 | 2002-09-05 | Progressive safety pliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571723Y true CN2571723Y (en) | 2003-09-10 |
Family
ID=33722637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02253505 Expired - Lifetime CN2571723Y (en) | 2002-09-05 | 2002-09-05 | Progressive safety pliers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2571723Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575062B (en) * | 2009-05-18 | 2011-05-11 | 杭州沪宁电梯配件有限公司 | Asymmetric progressive safety gear |
| CN102730512A (en) * | 2012-06-20 | 2012-10-17 | 卡姆丹克太阳能（江苏）有限公司 | Gradual elevator safety tong |
| CN104692213A (en) * | 2013-09-27 | 2015-06-10 | 株式会社日立制作所 | Emergency braking device of elevator |
| CN105384032A (en) * | 2015-12-24 | 2016-03-09 | 广州永日电梯有限公司 | Method for preventing accidental movement of elevator car |
| CN105883529A (en) * | 2016-06-21 | 2016-08-24 | 浙江屹立电梯有限公司 | Self-balance progressive elevator safety tongs |
| CN106044454A (en) * | 2016-07-28 | 2016-10-26 | 常州信息职业技术学院 | Elevator car system and elevator car falling automatic detecting and braking device thereof |
| CN106315336A (en) * | 2016-11-03 | 2017-01-11 | 韩伍林 | Fixed clamp block of rope gripper |
| CN106494962A (en) * | 2015-09-08 | 2017-03-15 | 奥的斯电梯公司 | A kind of safety device for elevator |
| CN107512643A (en) * | 2017-08-21 | 2017-12-26 | 佛山市欧汇电梯配件有限公司 | Novel progressive bidirectional safety tongs |
| CN111439647A (en) * | 2020-05-26 | 2020-07-24 | 乐天电梯部件(浙江)有限公司 | Progressive elevator safety tongs |
| WO2022178845A1 (en) * | 2021-02-26 | 2022-09-01 | 杭州沪宁电梯部件股份有限公司 | Wedge wear self-compensation structure for safety protection apparatus |
| CN115872254A (en) * | 2022-12-02 | 2023-03-31 | 广东通达电梯部件有限公司 | Elevator safety tongs |
-
2002
- 2002-09-05 CN CN 02253505 patent/CN2571723Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575062B (en) * | 2009-05-18 | 2011-05-11 | 杭州沪宁电梯配件有限公司 | Asymmetric progressive safety gear |
| CN102730512A (en) * | 2012-06-20 | 2012-10-17 | 卡姆丹克太阳能（江苏）有限公司 | Gradual elevator safety tong |
| CN104692213A (en) * | 2013-09-27 | 2015-06-10 | 株式会社日立制作所 | Emergency braking device of elevator |
| CN106494962B (en) * | 2015-09-08 | 2019-12-10 | 奥的斯电梯公司 | Safety device for elevator |
| CN106494962A (en) * | 2015-09-08 | 2017-03-15 | 奥的斯电梯公司 | A kind of safety device for elevator |
| CN105384032A (en) * | 2015-12-24 | 2016-03-09 | 广州永日电梯有限公司 | Method for preventing accidental movement of elevator car |
| CN105883529A (en) * | 2016-06-21 | 2016-08-24 | 浙江屹立电梯有限公司 | Self-balance progressive elevator safety tongs |
| CN105883529B (en) * | 2016-06-21 | 2018-07-03 | 浙江屹立电梯有限公司 | A kind of gradual elevator safety tong of self-balancing |
| CN106044454A (en) * | 2016-07-28 | 2016-10-26 | 常州信息职业技术学院 | Elevator car system and elevator car falling automatic detecting and braking device thereof |
| CN106315336A (en) * | 2016-11-03 | 2017-01-11 | 韩伍林 | Fixed clamp block of rope gripper |
| CN106315336B (en) * | 2016-11-03 | 2018-05-08 | 石家庄五龙制动器股份有限公司 | Rope brake fixing clip |
| CN107512643A (en) * | 2017-08-21 | 2017-12-26 | 佛山市欧汇电梯配件有限公司 | Novel progressive bidirectional safety tongs |
| CN111439647A (en) * | 2020-05-26 | 2020-07-24 | 乐天电梯部件(浙江)有限公司 | Progressive elevator safety tongs |
| WO2022178845A1 (en) * | 2021-02-26 | 2022-09-01 | 杭州沪宁电梯部件股份有限公司 | Wedge wear self-compensation structure for safety protection apparatus |
| CN115872254A (en) * | 2022-12-02 | 2023-03-31 | 广东通达电梯部件有限公司 | Elevator safety tongs |
| CN115872254B (en) * | 2022-12-02 | 2023-09-01 | 广东通达电梯部件有限公司 | Elevator safety tongs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120905 Granted publication date: 20030910 |