CN203497872U - Safety tongs - Google Patents
Safety tongs Download PDFInfo
- Publication number
- CN203497872U CN203497872U CN201320659663.5U CN201320659663U CN203497872U CN 203497872 U CN203497872 U CN 203497872U CN 201320659663 U CN201320659663 U CN 201320659663U CN 203497872 U CN203497872 U CN 203497872U
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- CN
- China
- Prior art keywords
- voussoir
- moving
- safety tongs
- assembly
- wedge block
- 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
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Abstract
The utility model discloses safety tongs. The safety tongs comprise a tongs body and a brake device. The tongs body is provided with a brake groove for installation of the brake device. The brake device comprises a fixed wedge block component installed on one side inside the brake groove and a movable wedge block component installed on the other side inside the brake groove. The fixed wedge block component comprises a fixed wedge block, and the side surface, towards the movable wedge block component, of the fixed wedge block is a vertical clamping surface. The safety tongs are characterized in that the side surface, backing on to the movable wedge block component, of the fixed wedge block is an inclined surface inclined outwards, and an elastic part enabling the fixed wedge block to keep the upward movement trend is elastically arranged below the fixed wedge block in an abutting mode. Compared with the prior art, the safety tongs are characterized in that the side surface, backing on to the movable wedge block component, of the fixed wedge block is designed to be the inclined surface inclined outwards, the structure is novel, the elastic part enabling the fixed wedge block to keep the upward movement trend is elastically arranged below the fixed wedge block in the abutting mode, and therefore after the safety tongs brake, the compressed elastic part can lift and reset the fixed wedge block.
Description
Technical field
The utility model relates to safety protection apparatus for elevator, especially relates to a kind of safety tongs.
Background technology
Elevator safety gear is one of vitals ensureing elevator safety; the Main Function of safety tongs is: when nonserviceable lower hypervelocity of elevator glides or falls and speed while reaching governor tripping speed; by velocity limiter manoeuvring safety pincers, made to be clamped on guide rail after lift car safe stop; thereby prevent the generation of contingency, can play owing to protecting the effect of passenger and equipment in elevator overspeed and the situation of falling.Prior art has the safety tongs of various different structures, the structure of comparatively common safety tongs is: safety tongs comprises caliper and brake equipment, caliper has the breaker slot of installing for brake equipment, brake equipment specifically includes determines voussoir assembly and moving voussoir assembly, wherein, determine voussoir assembly and be arranged on breaker slot one side, moving voussoir assembly is arranged on breaker slot opposite side, the moving voussoir of determining in voussoir and moving voussoir assembly of determining in voussoir assembly is oppositely arranged, cage guide passes from the gap of determining between voussoir and moving voussoir, during safety tongs braking, moving voussoir moves up and makes voussoir and determine voussoir jointly to clamp cage guide.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, provide a kind of novel structure and braking after can carry out automatically reset safety tongs to determining voussoir.
The utility model solves the problems of the technologies described above adopted technical scheme: this safety tongs, include caliper and brake equipment, described caliper has the breaker slot of installing for described brake equipment, described brake equipment includes and is arranged on determining voussoir assembly and being arranged on the moving voussoir assembly of the inner opposite side of breaker slot of the inner side of breaker slot, described determine voussoir assembly and include and determine voussoir, it is described that to determine voussoir be upright clamping face towards the side of moving voussoir assembly, it is characterized in that: describedly determine the voussoir inclined-plane that the side of moving voussoir assembly is oblique outer incline dorsad, described determine voussoir below elasticity support to be provided with and can make to determine the elastic component that voussoir maintains upward movement trend.
Preferably, described caliper be provided with determine voussoir assembly a side below spring retainer is installed, described elastic component is a thrust spring, the upper end of thrust spring and the described voussoir of determining lean, the lower end of thrust spring is arranged on described spring retainer.
Further preferably, described determine voussoir assembly and also include and determine voussoir roller guide block, describedly determine voussoir roller guide block and be fixed on the outside of determining voussoir and be also fixed on caliper inside simultaneously.
For voussoir determine in effective protection, described determine voussoir assembly and also include and determine voussoir protecting cover, described determine voussoir protecting cover be located at determine the both sides, front and back of voussoir and be fixed on described in determine on voussoir roller guide block.
In order to make safety tongs there is the bounce of clamping guide rail, between described outside of determining voussoir roller guide block and the sidepiece of caliper, be provided with belleville spring.
Moving voussoir assembly can have various structures, preferably, described moving voussoir assembly includes moving voussoir, needle roller bearing plate and moving voussoir roller guide block, and described needle roller bearing plate is located at the outside of moving voussoir and is coordinated with moving wedge slides, and described moving voussoir roller guide block is fixed on the outside of described needle roller bearing plate.
In order effectively to protect moving voussoir and needle roller bearing plate, described moving voussoir assembly also includes moving voussoir protecting cover, and described moving voussoir protecting cover is located at the both sides, front and back of moving voussoir and needle roller bearing plate and is fixed on described moving voussoir roller guide block.
For the stroke of moving voussoir is regulated, at the top of described moving voussoir, be provided with one for regulating the adjusting bolt of moving voussoir stroke.
Compared with prior art, the utility model has the advantage of: this safety tongs by by determine voussoir dorsad the lateral layout of moving voussoir assembly become the inclined-plane of oblique outer incline, structure is comparatively novel, in addition, due to determine voussoir below elasticity support to be provided with and can make to determine the elastic component that voussoir maintains upward movement trend, thereby after safety tongs braking occurs, the elastic component of compression can be proposed reset on carrying out to determining voussoir.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the front elevation of safety tongs shown in Fig. 1;
Fig. 3 is the back view of safety tongs shown in Fig. 1;
Fig. 4 determines the structural representation of voussoir assembly in Fig. 1;
Fig. 5 is the structural representation of moving voussoir assembly in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figures 1 to 5, safety tongs in the present embodiment includes caliper 1 and brake equipment, caliper 1 has breaker slot 11, brake equipment comprises determines voussoir assembly 2 and moving voussoir assembly 3, determine voussoir assembly 2 and be arranged on a side of breaker slot 11 inside, moving voussoir assembly 3 is arranged on the opposite side of breaker slot 11 inside.
Determining voussoir assembly 2 includes and determines voussoir 21, determine voussoir roller guide block 22 and determine voussoir protecting cover 23.Wherein, determining voussoir 21 is upright clamping face towards the side of moving voussoir assembly 3, determine voussoir 21 inclined-plane that the side of moving voussoir assembly 3 is oblique outer incline dorsad, determining voussoir roller guide block 22 is fixed on and determines the outside of voussoir 21 and be fixed on caliper 1 inside simultaneously, determining voussoir protecting cover 23 has two, is located at respectively and determines the both sides, front and back of voussoir 21 and be fixed on to determine on voussoir roller guide block 22.
Due to this safety tongs determine voussoir 21 inclined-plane that the side of moving voussoir assembly 3 is oblique outer incline dorsad, thereby after safety tongs braking after generation, determine voussoir 21 and can slightly move down after stressed.For the voussoir 21 of determining after braking is proposed to reset on carrying out, this safety tongs determine voussoir 21 below elasticity support to be provided with and can make to determine the elastic component that voussoir 21 maintains upward movement trend.In the present embodiment, elastic component is a thrust spring 5, and the below that caliper 1 is provided with a side of determining voussoir assembly 2 is provided with spring retainer 4, the upper end of thrust spring 5 with determine voussoir 21 and lean, the lower end of thrust spring 5 is arranged on spring retainer 4.In addition,, for safety tongs has the bounce that clamps guide rail, determining to be provided with belleville spring 6 between the outside of voussoir roller guide block 22 and the sidepiece of caliper 1.
In the present embodiment, moving voussoir assembly 3 includes moving voussoir 31, needle roller bearing plate 32, moving voussoir roller guide block 33 and moving voussoir protecting cover 34.Wherein, needle roller bearing plate 32 be located at moving voussoir 31 outside and with moving voussoir 31 bearing fits, moving voussoir roller guide block 33 is fixed on the outside of needle roller bearing plate 32.Moving voussoir protecting cover 34 is two, is located at respectively the both sides, front and back of moving voussoir 31 and needle roller bearing plate 32 and is fixed on moving voussoir roller guide block 33.In addition,, for the stroke of moving voussoir 31 is regulated, at the top of moving voussoir 31, be provided with one for regulating the adjusting bolt 7 of moving voussoir stroke.
The foregoing is only preferred implementation of the present utility model; it should be pointed out that for those of ordinary skills, do not departing under principle prerequisite of the present utility model; can carry out multiple remodeling or improvement to the utility model, within these are all regarded as protection domain of the present utility model.
Claims (8)
1. a safety tongs, include caliper (1) and brake equipment, described caliper has the breaker slot (11) of installing for described brake equipment, described brake equipment includes and is arranged on determining voussoir assembly (2) and being arranged on the moving voussoir assembly (3) of the inner opposite side of breaker slot of the inner side of breaker slot (11), described determine voussoir assembly (2) and include and determine voussoir (21), it is described that to determine voussoir (21) be upright clamping face towards the side of moving voussoir assembly (3), it is characterized in that: describedly determine voussoir (21) inclined-plane that the side of moving voussoir assembly (3) is oblique outer incline dorsad, in described below elasticity of determining voussoir (21), support to be provided with and can make to determine the elastic component that voussoir (21) maintains upward movement trend.
2. safety tongs according to claim 1, it is characterized in that: the below that a side of determining voussoir assembly (2) is installed at described caliper (1) is provided with spring retainer (4), described elastic component is a thrust spring (5), the upper end of thrust spring (5) and the described voussoir (21) of determining lean, and the lower end of thrust spring (5) is arranged on described spring retainer (4).
3. safety tongs according to claim 1 and 2, it is characterized in that: described determine voussoir assembly (2) and also include and determine voussoir roller guide block (22), describedly determine voussoir roller guide block (22) and be fixed on and determine the outside of voussoir (21) and be fixed on caliper (1) inside simultaneously.
4. safety tongs according to claim 3, it is characterized in that: described determine voussoir assembly (2) and also include and determine voussoir protecting cover (23), describedly determine voussoir protecting cover (23) and be located at and determine the both sides, front and back of voussoir (21) and be fixed on described determining on voussoir roller guide block (22).
5. safety tongs according to claim 3, is characterized in that: described, determine to be provided with belleville spring (6) between the outside of voussoir roller guide block (22) and the sidepiece of caliper (1).
6. safety tongs according to claim 1 and 2, it is characterized in that: described moving voussoir assembly (3) includes moving voussoir (31), needle roller bearing plate (32) and moving voussoir roller guide block (33), described needle roller bearing plate (32) is located at the outside of moving voussoir (31) and is coordinated with moving wedge slides, and described moving voussoir roller guide block (33) is fixed on the outside of described needle roller bearing plate (32).
7. safety tongs according to claim 6, it is characterized in that: described moving voussoir assembly (3) also includes moving voussoir protecting cover (34), described moving voussoir protecting cover (34) is located at the both sides, front and back of moving voussoir (31) and needle roller bearing plate (32) and is fixed on described moving voussoir roller guide block (33).
8. safety tongs according to claim 6, is characterized in that: at the top of described moving voussoir (31), be provided with one for regulating the adjusting bolt (7) of moving voussoir stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659663.5U CN203497872U (en) | 2013-10-24 | 2013-10-24 | Safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659663.5U CN203497872U (en) | 2013-10-24 | 2013-10-24 | Safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203497872U true CN203497872U (en) | 2014-03-26 |
Family
ID=50328870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320659663.5U Expired - Fee Related CN203497872U (en) | 2013-10-24 | 2013-10-24 | Safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203497872U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731207A (en) * | 2014-12-08 | 2016-07-06 | 日立电梯（中国）有限公司 | Method and device for preventing automatic resetting of safety gear after lift car stopping |
| CN106494963A (en) * | 2016-10-27 | 2017-03-15 | 深圳市科陆电子科技股份有限公司 | Band-type brake catching device |
| EP3141512A1 (en) * | 2015-09-08 | 2017-03-15 | Otis Elevator Company | A safety device for elevators |
| CN109476452A (en) * | 2016-07-26 | 2019-03-15 | 三菱电机株式会社 | The emergency braking device of elevator |
| EP3656719A3 (en) * | 2018-10-26 | 2020-08-19 | Otis Elevator Company | Elevator braking device mechanism |
-
2013
- 2013-10-24 CN CN201320659663.5U patent/CN203497872U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731207A (en) * | 2014-12-08 | 2016-07-06 | 日立电梯（中国）有限公司 | Method and device for preventing automatic resetting of safety gear after lift car stopping |
| CN105731207B (en) * | 2014-12-08 | 2018-04-03 | 日立电梯（中国）有限公司 | One kind prevents the automatically reset method and apparatus of safety tongs after car stop |
| EP3141512A1 (en) * | 2015-09-08 | 2017-03-15 | Otis Elevator Company | A safety device for elevators |
| US10407278B2 (en) | 2015-09-08 | 2019-09-10 | Otis Elevator Company | Safety device for elevators |
| CN109476452A (en) * | 2016-07-26 | 2019-03-15 | 三菱电机株式会社 | The emergency braking device of elevator |
| CN106494963A (en) * | 2016-10-27 | 2017-03-15 | 深圳市科陆电子科技股份有限公司 | Band-type brake catching device |
| CN106494963B (en) * | 2016-10-27 | 2019-11-15 | 深圳市科陆电子科技股份有限公司 | Band-type brake catching device |
| EP3656719A3 (en) * | 2018-10-26 | 2020-08-19 | Otis Elevator Company | Elevator braking device mechanism |
| US11242222B2 (en) | 2018-10-26 | 2022-02-08 | Otis Elevator Company | Elevator braking device mechanism |
| US11724912B2 (en) | 2018-10-26 | 2023-08-15 | Otis Elevator Company | Elevator braking device mechanism |
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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: 20140326 Termination date: 20141024 |
|
| EXPY | Termination of patent right or utility model |