CN203021125U - Decelerated expansion device - Google Patents
Decelerated expansion device Download PDFInfo
- Publication number
- CN203021125U CN203021125U CN 201220534993 CN201220534993U CN203021125U CN 203021125 U CN203021125 U CN 203021125U CN 201220534993 CN201220534993 CN 201220534993 CN 201220534993 U CN201220534993 U CN 201220534993U CN 203021125 U CN203021125 U CN 203021125U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- decelerated
- expansion device
- footstock
- rotary shaft
- 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
Links
Images
Landscapes
- Emergency Lowering Means (AREA)
Abstract
The utility model provides a decelerated expansion device. The decelerated expansion device is provided with a top seat, a middle rotating shaft, a middle sleeve, an extensible belt, an extensible belt head and a base, wherein a circular boss is installed on the upper portion of the top seat, at least one pawl, a ratchet wheel and at least one centrifugal arm are installed on the circular boss, the pawl is installed on one side of the middle rotating shaft, the ratchet wheel is sleeved outside the pawl, the periphery of the ratchet wheel is connected with one end of the centrifugal arm through a connection arm, and the other end of the centrifugal arm is in clearance fit with the inner wall of the top of the top seat in a contacting mode. The decelerated expansion device has the advantages that by means of the design of the pawl, the ratchet wheel and the centrifugal arm, the decelerated expansion device can be uniformly retracted at a low speed, effects are stable, using is safe and reliable, and people can not be injured. Meanwhile, no damage is caused to the decelerated expansion device, and service life of the decelerated expansion device is guaranteed beneficially.
Description
Technical field
The utility model relates to the pipe expansion joint technical field, and it is specifically related to a kind of speed-reduction expander.
Background technology
Pipe expansion joint is the product that a kind of its drawstring is stretched and is regained by self elastic force, after pipe expansion joint and guardrail base are simply assembled up, can be widely used in different occasions, such as: bank, station, hospital, post office, theater, airport, airport, subway, cashier dealing for money place, supermarket, market etc. can ensure client's property and information safety; Be used at the display and demonstration center, hotel, club, club, Business Building be in the world the time, as mobile isolating and protecting system, can keep order, division scope, guiding route.Existing pipe expansion joint is after its drawstring stretches, and himself spring produces very large pulling force, and when telescopic band was regained, drawstring was due to the effect of spring tension like this, and speed of revolutions is very fast, easily pedestrian and equipment is damaged.Therefore need to slow down to telescopic band when regaining.At present, the apparatus structure more complicated of deceleration successful when telescopic band is regained, cost is high; And constructional device is simple, and its deceleration effect is obvious not, and service life is shorter, so be badly in need of now addressing the above problem.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to propose a kind of single retarded pipe expansion joint simple in structure, makes pipe expansion joint in use, telescopic band can be evenly at a slow speed withdrawal, safe and reliable, avoid casualty accident to occur, to the pipe expansion joint zero damage, guarantee service life simultaneously.
a kind of speed-reduction expander, be provided with: footstock, intermediate rotary shaft, intermediate sleeve, telescopic band, flexible taking the lead and base, described intermediate rotary shaft and intermediate sleeve are located at footstock inside, described base is located at the bottom of footstock, described telescopic band takes the lead to be connected with intermediate rotary shaft by clockwork spring with being connected the side that interlock is located at footstock and base, described footstock top is provided with an annulus boss, described annulus boss is provided with at least one ratchet, ratchet and at least one centrifuge arm, described ratchet is located at a side of intermediate rotary shaft, described ratchet sleeve is located at the outside of ratchet, described ratchet surrounding connects an end of described centrifuge arm by connecting arm, the described centrifuge arm other end coordinates with the inwall contact gap at footstock top.
Also be provided with at least one spacing cylinder on described intermediate sleeve, described spacing cylinder is located between ratchet and intermediate rotary shaft.
The utility model has the following advantages owing to taking above technical scheme:
The beneficial effect of speed-reduction expander described in the utility model is: by the design of ratchet, ratchet and centrifuge arm, make product evenly to reclaim at a slow speed, and effect stability, safe and reliable, can not hurt sb.'s feelings.To the pipe expansion joint zero damage, be conducive to guarantee its service life simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model speed-reduction expander.
Fig. 2 is the overall schematic of the utility model speed-reduction expander;
Fig. 3 is the structural representation of the telescopic band stretching timer of the utility model speed-reduction expander;
Fig. 4 is the structural representation that the telescopic band of the utility model speed-reduction expander is regained timer
The specific embodiment
Below in conjunction with accompanying drawing and example, the utility model is described in detail.
As depicted in figs. 1 and 2, structural representation for the utility model speed-reduction expander, be provided with: footstock 1, intermediate rotary shaft 2, intermediate sleeve 3, telescopic band 9, flexiblely take the lead 10 and base 11, described intermediate rotary shaft 2 and intermediate sleeve 3 are located at footstock 1 inside, described base 11 is located at the bottom of footstock 1, and described telescopic band 9 takes the lead 10 to be connected the side that interlock is located at footstock 1 and base 11 with intermediate rotary shaft 2 by clockwork spring with being connected.
Described footstock 1 top is provided with an annulus boss 7, described annulus boss 7 is provided with at least one ratchet 4, ratchet 5 and at least one centrifuge arm 6, described ratchet 4 is located at a side of intermediate rotary shaft 2, described ratchet 5 is sheathed on the outside of ratchet 4, described ratchet 5 surroundings connect an end of described centrifuge arm 6 by connecting arm, described centrifuge arm 6 other ends coordinate with the inwall contact gap at footstock 1 top.
Also be provided with at least one spacing cylinder 8 on described intermediate sleeve 3, described spacing cylinder 8 is located between ratchet 4 and intermediate rotary shaft 2.
When using telescopic band, pull the flexible of the telescopic band 9 of ining succession to take the lead 10, telescopic band 9 drives intermediate rotary shaft 2 and rotates counterclockwise (as shown in Figure 3), at this moment ratchet 4 can not drive ratchet 5 rotations, and is too approaching with intermediate rotary shaft 2 in rotation process for avoiding ratchet 4, spacing by spacing cylinder 8, at this moment, only have intermediate rotary shaft 2, intermediate sleeve 3, ratchet 4 in device in motion, device does not provide resistance, does not play deceleration effort.
When regaining telescopic band, driving telescopic band 9 by the clockwork spring that is contained in base 11 inside reclaims voluntarily, this moment, intermediate rotary shaft 2 clockwise rotated (as shown in Figure 4), ratchet 4 blocks ratchet 5 inside grooves in the centrifugal action next top, driving ratchet 5 clockwise rotates, simultaneously 5, ratchet drives centrifuge arms 6 motions, provides resistance by the friction force of centrifuge arm 6 and footstock 1 contact surface, plays the deceleration effort to middle rotating shaft turning anticlockwise (being that telescopic band is regained).
The utility model is only illustrated explanation with above-described embodiment; the structure of each parts, setting position and connection thereof all can change to some extent; on the basis of technical solutions of the utility model; all improvement and equivalents of individual component being carried out according to the utility model principle all should not got rid of outside protection domain of the present utility model.
Claims (2)
1. speed-reduction expander, be provided with: footstock (1), intermediate rotary shaft (2), intermediate sleeve (3), telescopic band (9), flexible (10) and the base (11) of taking the lead, described intermediate rotary shaft (2) and intermediate sleeve (3) are located at footstock (1) inside, described base (11) is located at the bottom of footstock (1), described telescopic band (9) be connected take the lead (10) be connected with intermediate rotary shaft (2) side that interlock is located at footstock (1) and base (11) by clockwork spring, it is characterized in that: described footstock (1) top is provided with an annulus boss (7), described annulus boss (7) is provided with at least one ratchet (4), ratchet (5) and at least one centrifuge arm (6), described ratchet (4) is located at a side of intermediate rotary shaft (2), described ratchet (5) is sheathed on the outside of ratchet (4), described ratchet (5) surrounding connects an end of described centrifuge arm (6) by connecting arm, described centrifuge arm (6) other end coordinates with the inwall contact gap at footstock (1) top.
2. a kind of speed-reduction expander as claimed in claim 1, it is characterized in that: also be provided with at least one spacing cylinder (8) on described intermediate sleeve (3), described spacing cylinder (8) is located between ratchet (4) and intermediate rotary shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534993 CN203021125U (en) | 2013-03-29 | 2013-03-29 | Decelerated expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534993 CN203021125U (en) | 2013-03-29 | 2013-03-29 | Decelerated expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203021125U true CN203021125U (en) | 2013-06-26 |
Family
ID=48645121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220534993 Expired - Fee Related CN203021125U (en) | 2013-03-29 | 2013-03-29 | Decelerated expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203021125U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108570A (en) * | 2013-08-17 | 2014-10-22 | 都江堰金祥装饰工程有限公司 | Automatic speed reducer of vehicle loading conveyor |
| CN106865364A (en) * | 2017-02-23 | 2017-06-20 | 胡连湖 | Automatic hose reel |
| CN107157088A (en) * | 2017-05-31 | 2017-09-15 | 余姚市德威电器电机有限公司 | Hair dryer with take-up deceleration device |
| CN112078692A (en) * | 2020-09-16 | 2020-12-15 | 赵玉梅 | Bicycle learning auxiliary device |
-
2013
- 2013-03-29 CN CN 201220534993 patent/CN203021125U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108570A (en) * | 2013-08-17 | 2014-10-22 | 都江堰金祥装饰工程有限公司 | Automatic speed reducer of vehicle loading conveyor |
| CN106865364A (en) * | 2017-02-23 | 2017-06-20 | 胡连湖 | Automatic hose reel |
| CN106865364B (en) * | 2017-02-23 | 2018-07-31 | 胡连湖 | Automatic hose reel |
| CN107157088A (en) * | 2017-05-31 | 2017-09-15 | 余姚市德威电器电机有限公司 | Hair dryer with take-up deceleration device |
| CN107157088B (en) * | 2017-05-31 | 2024-02-06 | 余姚市德威电器电机有限公司 | Electric hair drier with wire winding speed reducer |
| CN112078692A (en) * | 2020-09-16 | 2020-12-15 | 赵玉梅 | Bicycle learning auxiliary device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203021125U (en) | Decelerated expansion device | |
| CN204342301U (en) | Hanging | |
| CN104174150B (en) | Elastomeric cords formula bike riding-balance simulator | |
| CN203583935U (en) | 225-degree film watching system | |
| CN204435224U (en) | A kind of Character of Cable Force of Cable stayed Bridge robot motion device | |
| CN211145826U (en) | VR all-in-one height-adjustable device | |
| CN207575678U (en) | A kind of interior arm exercise device | |
| CN204337607U (en) | A kind of bungee jumping formula rotates device of jumping | |
| CN203264284U (en) | Remote control toy ball | |
| CN203954567U (en) | A kind of multifunctional body-building device that can stably be placed on bedroom | |
| CN106395451B (en) | A kind of membrane material stripping off device | |
| CN103514789B (en) | Automatic demonstration device for conservation of mechanical energy | |
| CN205873537U (en) | At uniform velocity cable picking and laying is traditional thread binding puts | |
| CN209952122U (en) | Rotatory speed governing exerciser of dance | |
| CN207545693U (en) | A kind of multifunctional children protects trampoline | |
| CN201725536U (en) | Novel automatic flag unfolding device | |
| CN108487114B (en) | Municipal works are with construction warning equipment | |
| CN203633848U (en) | Crib guard | |
| CN205941946U (en) | But life detector of sound | |
| CN207847176U (en) | A kind of multifunction special effect stage | |
| CN206946678U (en) | A kind of absorption type seismic sensors audible-visual annunciator | |
| CN205084314U (en) | High -safety treadmill | |
| CN201920542U (en) | Safe thermos bottle | |
| CN203652045U (en) | Synchronous brake rubber braking device | |
| CN206048248U (en) | A kind of mechanical arm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20140329 |