CN202315019U - Speed difference automatic controller - Google Patents
Speed difference automatic controller Download PDFInfo
- Publication number
- CN202315019U CN202315019U CN2011202244267U CN201120224426U CN202315019U CN 202315019 U CN202315019 U CN 202315019U CN 2011202244267 U CN2011202244267 U CN 2011202244267U CN 201120224426 U CN201120224426 U CN 201120224426U CN 202315019 U CN202315019 U CN 202315019U
- Authority
- CN
- China
- Prior art keywords
- drum
- ratchet
- housing
- speed difference
- automatic controller
- 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 relates to the safety protecting appliance field and especially relates to a speed difference automatic controller applied in high altitude operations. A speed difference automatic controller comprises a housing and a drum equipped inside the housing. A central shaft is equipped inside the housing. The drum and a ratchet are sleeved on the central shaft. The drum and the ratchet are fixedly connected. The drum has an integral structure. A spiral spring is equipped inside the drum. One end of the spiral spring is fixed with the central shaft while the other end is fixed on the drum. A brace is wound on the outer ring face of the drum. A pawl is further equipped inside the housing. The pawl is connected on the housing in a rotating way. A spring is connected between one pawl end located on a rotating point and the housing. Under the effect of the spring, the pawl end is in sliding connection with the teeth of the ratchet. The other pawl end on a rotating point is projecting in an acute-angle way. When the pawl is bumped by the ratchet in a high-speed way, the pawl end projecting in an acute-angle way is jointed with the ratchet teeth in an embedding way. The speed difference automatic controller in the utility model tends to be more stable. Meanwhile, the volume of the drum is significantly reduced. The speed difference automatic controller then has a smaller volume. Therefore, the speed difference automatic controller is more convenient to carry and apply in high altitude operations.
Description
Technical field
The utility model relates to a kind of safety protective tools field, relates in particular to a kind of speed difference automatic controller when being used for work high above the ground.
Background technology
Now, along with development of science and technology, ground space more and more littler, a large amount of high buildings and large mansions are rised sheer from level ground.Along with the increase of height, simple working comparatively at ordinary times such as cleaning glass or assemble certain device etc., owing to be work high above the ground, makes such work more difficulty that becomes.Thing followed high-speed difference automatic control catching device has solved above-mentioned difficulty, but general high-speed difference automatic control catching device, volume is bigger, the structure more complicated, thus make cost higher.Particularly drum is to be assembled by two and half drums process, and this just makes whole high-speed difference automatic control catching device become very unstable, and access times are many will to make that drum breaks down, and brings potential safety hazard for the construction workman.And drum makes that through assembling whole drum is bigger, takies bigger space, makes that the volume of whole high-speed difference automatic control catching device is bigger, and weight is also just bigger, is inconvenient to carry very much.
Summary of the invention
The defective that the utility model exists when solving work high above the ground provides a kind of integrative-structure, speed difference automatic controller that volume is little.
Its concrete technical scheme is: a kind of speed difference automatic controller, comprise housing and the drum that is arranged in the housing, and be provided with central shaft in the described housing; Be socketed with drum, ratchet on the described central shaft, drum is fixedly connected with ratchet; Described drum is structure as a whole, and is provided with clockwork spring in the described drum, and an end and the central shaft of clockwork spring are fixed, and the other end of clockwork spring is fixed on the drum; Be wound with suspender belt on the outer ring face of described drum; Also be provided with a ratchet in the described housing; Described ratchet is rotatably connected on the housing; It is connected with spring between end of run-on point and housing, the ratchet of this end and ratchet is slidingly connected under the effect of spring, and its other end that is positioned at run-on point is the acute angle convex shape; Ratchet by the ratchet high-speed impact under, described acute angle convex shape and hook tooth tabling.
Wherein optimal way does, described housing is provided with reinforcement.
Wherein optimal way does, the end that described suspender belt stretches out housing is connected with drag hook.
When work high above the ground was at ordinary times used, because power is less, suspender belt drove drum and on central shaft, rotates; Thereby central shaft drives clockwork spring and tightens up, and after the power disappearance that acts on the suspender belt, clockwork spring loosens; Begin retraction; Clockwork spring drives the central shaft backward rotation, and central shaft drives drum and rotates, and reclaims the suspender belt of pulling out to be wrapped on the drum.When being in an emergency,, in the extremely short time, produce a bigger speed difference because the human body tenesmus can suddenly be quickened; Suddenly act on the suspender belt thereby have a very big power, rotate on central shaft thereby suspender belt drives drum, the ratchet on the drum quickens to rotate; Acting on the ratchet energetically makes ratchet rotate significantly, makes an end claw of ratchet match with the gear of ratchet and blocks stop; Immediately block ratchet, make ratchet stop operating, thereby let drum stop operating; Suspender belt no longer toward stretched, hangs the workmen, has reached the object of the invention.
The utility model has adopted the drum assembly of an integral body, makes whole speed differ from more tending towards stability property of automatic controller, and can significantly reduce the volume of drum, thereby reduce the volume of speed difference automatic controller, more is convenient for carrying and work high above the ground.And can significantly prolong the service life that speed differs from automatic controller.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Embodiment
Below in conjunction with Fig. 1 the utility model embodiment is described in further detail.
A kind of speed difference automatic controller comprises housing 1 and the drum 2 that is arranged in the housing 1, is provided with central shaft 8 in the described housing 1; Be socketed with drum 2, ratchet 7 on the described central shaft 8, drum 2 is fixedly connected with ratchet 7; Described drum 2 is structure as a whole, and is provided with clockwork spring 6 in the described drum 2, and an end of clockwork spring 6 and central shaft 8 are fixing, and the other end of clockwork spring 6 is fixed on the drum 2; Be wound with suspender belt 5 on the outer ring face of described drum 2; Also be provided with a ratchet 3 in the described housing 1; Described ratchet 3 is rotatably connected on the housing 1; It is connected with spring 4 between end of run-on point and housing 1, the ratchet of this end and ratchet 7 is slidingly connected under the effect of spring 4, and its other end that is positioned at run-on point is the acute angle convex shape; Ratchet 3 by ratchet 7 high-speed impacts under, described acute angle convex shape and hook tooth tabling.
Wherein optimal way does, described housing 1 is provided with reinforcement.
Wherein optimal way does, the end that described suspender belt 5 stretches out housing 1 is connected with drag hook 9.
When work high above the ground was at ordinary times used, because power is less, suspender belt 5 drove drum 2 and on central shaft 8, rotates; Thereby central shaft 8 drives clockwork spring 6 and tightens up, and after the power disappearance that acts on the suspender belt 5, clockwork spring 6 loosens; Begin retraction; Clockwork spring 6 drives central shaft 8 backward rotation, and central shaft 8 drives drum 2 and rotates, and reclaims the suspender belt of pulling out 5 to be wrapped on the drum 2.When being in an emergency,, in the extremely short time, produce a bigger speed difference because the human body tenesmus can suddenly be quickened; Suddenly act on the suspender belt 5 thereby have a very big power, rotate on central shaft 8 thereby suspender belt 5 drives drum 2, the ratchet 7 on the drum 2 quickens to rotate; Acting on the ratchet 3 energetically makes ratchet 3 rotate significantly, makes an end claw of ratchet 3 match with the gear of ratchet 7 and blocks stop; Immediately block ratchet 7, make ratchet 7 stop operating, thereby let drum 2 stop operating; Suspender belt 5 no longer toward stretched, hangs the workmen, has reached the purpose of the utility model.
Claims (2)
1. a speed difference automatic controller comprises housing and the drum that is arranged in the housing, it is characterized in that, is provided with central shaft in the described housing; Be socketed with drum, ratchet on the described central shaft, drum is fixedly connected with ratchet; Described drum is structure as a whole, and is provided with clockwork spring in the described drum, and an end and the central shaft of clockwork spring are fixed, and the other end of clockwork spring is fixed on the drum; Be wound with suspender belt on the outer ring face of described drum; Also be provided with a ratchet in the described housing; Described ratchet is rotatably connected on the housing; It is connected with spring between end of run-on point and housing, the ratchet of this end and ratchet is slidingly connected under the effect of spring, and its other end that is positioned at run-on point is the acute angle convex shape; Ratchet by the ratchet high-speed impact under, described acute angle convex shape and hook tooth tabling.
2. speed difference automatic controller as claimed in claim 1 is characterized in that described housing is provided with reinforcement.
3. speed difference automatic controller as claimed in claim 1 is characterized in that the end that described suspender belt stretches out housing is connected with drag hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202244267U CN202315019U (en) | 2011-06-29 | 2011-06-29 | Speed difference automatic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202244267U CN202315019U (en) | 2011-06-29 | 2011-06-29 | Speed difference automatic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202315019U true CN202315019U (en) | 2012-07-11 |
Family
ID=46427024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202244267U Expired - Fee Related CN202315019U (en) | 2011-06-29 | 2011-06-29 | Speed difference automatic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202315019U (en) |
-
2011
- 2011-06-29 CN CN2011202244267U patent/CN202315019U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |