CN202605569U - Woven tape differential mechanism - Google Patents
Woven tape differential mechanism Download PDFInfo
- Publication number
- CN202605569U CN202605569U CN 201220247727 CN201220247727U CN202605569U CN 202605569 U CN202605569 U CN 202605569U CN 201220247727 CN201220247727 CN 201220247727 CN 201220247727 U CN201220247727 U CN 201220247727U CN 202605569 U CN202605569 U CN 202605569U
- Authority
- CN
- China
- Prior art keywords
- ribbon
- woven tape
- rolling disc
- speed difference
- main 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.)
- Withdrawn - After Issue
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Abstract
A woven tape differential mechanism comprises a housing, a fixed bracket and a rotation plate, wherein the fixed bracket and the rotation plate are arranged in the housing; a woven tape is wound on the rotation plate; the outer end of the woven tape is exposed out of the housing; a rotatable pawl, which can be folded elastically, is matched with a fixed internal fluted disc correspondingly to form a differential falling preventing mechanism; a fixed spindle is arranged in the center of the rotation plate; and the internal end part of the woven tape penetrates a side seam of the rotation plate and is connected to a fixed spindle, so as to form a central pulling structure. As the internal end part of the woven tape is connected to the fixed spindle in the center, no pulling-down torque exists between the woven tape and a rotation center even when the woven tape is completely pulled with large force, and pulling-down force approximately acts on the fixed spindle. The pulling structure is reasonable; the bearing strength is high; and the differential falling preventing mechanism cannot be damaged by pulling-down force, so that the safety and the reliability are high.
Description
Technical field:
The utility model relates to the speed difference device of the anti-fall usefulness of a kind of work high above the ground, particularly ribbon speed difference device.
Background technology:
In many fields that need work high above the ground, the operating personnel need be articulated on the speed difference device rope band and prevent that the high-altitude is born.The ratchet that the fast difference of general ribbon device all is to use elasticity to draw in is connected on the rolling disc, and cooperates with fixing interior fluted disc.When ribbon by rapid when drop-down, ratchet by centrifugal throw away and block fixing in fluted disc, rolling disc is stopped operating, the personnel of preventing drop.Because the ribbon inner end generally is connected the rolling disc sidewall, ribbon is stressed longer with the arm of force of center of rotation formation when drop-down, and drop-down moment is big; It is reasonable inadequately that speed difference device inside bears structure; Caused speed difference device internal sabotage when most probably if ribbon draws energetically, falling stop body lost efficacy, and influenced safety.
Summary of the invention:
To the deficiency of prior art, the utility model provides a kind of inside to bear ribbon speed difference device rational in infrastructure.
The utility model comprises housing and fixed support that is placed in one and rolling disc; Ribbon is wound on the rolling disc; And expose outside the housing outer end of ribbon, and the rotatable ratchet that elasticity is drawn in is then formed speed difference falling stop body with fixing interior fluted disc corresponding matching, also is provided with fixed main shaft in the center of rolling disc; The inner end part of ribbon is passed the latasuture place of rolling disc and is connected on the fixed main shaft, and the formation center bears structure.
The ribbon inner end of the utility model is connected on the fixed main shaft of center; Even ribbon is drawn when most energetically and center of rotation between do not have drop-down moment yet; Lower pulling force basic role bears rational in infrastructurely on fixed main shaft, and load intensity is high; The inner falling stop body of speed difference device can not destroyed by lower pulling force, and security reliability is high.
Further specify the utility model below in conjunction with accompanying drawing and embodiment.
Description of drawings:
Fig. 1 is the main structure sketch map of embodiment.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the sketch map of speed difference falling stop body.
Fig. 4 is ribbon inner end and fixed main shaft connection status sketch map.
Fig. 5 is the plicating suture structural representation of I portion among Fig. 2.
The specific embodiment:
Embodiment: to shown in Figure 4, fixed support 2 places housing 1 with rolling disc 3 like Fig. 1, and ribbon 6 is wound on the rolling disc 3, and the outer end of ribbon 6 exposes outside the housing 1, and the outer end of general ribbon 6 also is connected with hook 13, is convenient to hook the operating personnel.4 on rotatable ratchet that elasticity is drawn in and fixing interior fluted disc 5 corresponding matching are formed the poor falling stop body of speed, and ratchet 4 has two usually.Center at rolling disc 3 also is provided with fixed main shaft 7, and the inner end part of ribbon 6 is passed the latasuture place 8 of rolling disc 3 and is connected on the fixed main shaft 7, and the formation center bears structure.
The ratchet 4 of present embodiment is connected in the seat board 9 that links with rolling disc 3, is connected with compression spring 10 between the end of ratchet 4 and the seat board 9, constitutes roof pressing type elasticity and draws structure in.When off working state, the end of ratchet 4 is compressed spring 10 roof pressures and draws in, and is in stable condition, avoided the issuable ratchet 4 of employing extension spring to shake easily, even the problem of misoperation like this.The surface of fixed main shaft 7 can be with axle sleeve 12, can reduce friction.Usually can also adopt copper, the double-deck axle sleeve structure of aluminium, performance is better.
During use, hook 13 can hook operating personnel's safety belt suspension ring, normal moving when pulling out ribbon 6, because the velocity of rotation of rolling disc 3 is slow, two ratchets 4 are compressed the gathering of spring 10 roof pressures and can throw away, do not have the locking action.If tenesmus suddenly, because quick outer the drawing of ribbon 6 quilts, the quick rotation of rolling disc 3 can make the 4 centrifugal rotations of two ratchets throw away, and compression spring 10 is by the compression of the end of ratchet 4, and the internal tooth falling stop of fixing interior fluted disc 5 is then blocked in the outer end of ratchet 4.Even ribbon 6 is drawn to the greatest extent energetically, also basic role is on fixed main shaft 7 for lower pulling force, and load intensity is high, and falling stop body can not destroyed by lower pulling force yet, and security reliability is high.
In fact, as shown in Figure 5, also can be connected with buffering subband 11 on the position outside ribbon 6 exposes housing 1, buffering subband 11 and ribbon 6 rule plicating sutures.When moving falling stop, if lower pulling force is very big, it is stretching that the plicating suture place of buffering subband 11 and ribbon 6 can be torn expansion, can cushion like this and reduce the impulsive force that partly drops, and improves the security reliability of the poor device of speed like this.
Claims (5)
1. a ribbon speed differs from device; Comprise housing and fixed support that is placed in one and rolling disc, ribbon is wound on the rolling disc, and expose outside the housing outer end of ribbon; The rotatable ratchet that elasticity is drawn in is then formed speed difference falling stop body with fixing interior fluted disc corresponding matching; It is characterized by: also be provided with fixed main shaft (7) in the center of rolling disc (3), the inner end part of ribbon (6) is passed the latasuture place (8) of rolling disc (3) and is connected on the fixed main shaft (7), and the formation center bears structure.
2. ribbon speed difference device according to claim 1; It is characterized by: in the seat board (9) that ratchet (4) is connected and rolling disc (3) links; Be connected with compression spring (10) between the end of ratchet (4) and the seat board (9), constitute roof pressing type elasticity and draw structure in.
3. ribbon speed difference device according to claim 1 and 2 is characterized by: also be connected with buffering subband (11) on the position outside ribbon (6) exposes housing (1), buffering subband (11) and ribbon (6) rule plicating suture.
4. ribbon speed difference device according to claim 1 and 2, it is characterized by: the surface of fixed main shaft (7) is with axle sleeve (12).
5. ribbon speed difference device according to claim 3, it is characterized by: the surface of fixed main shaft (7) is with axle sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220247727 CN202605569U (en) | 2012-05-30 | 2012-05-30 | Woven tape differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220247727 CN202605569U (en) | 2012-05-30 | 2012-05-30 | Woven tape differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202605569U true CN202605569U (en) | 2012-12-19 |
Family
ID=47339305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220247727 Withdrawn - After Issue CN202605569U (en) | 2012-05-30 | 2012-05-30 | Woven tape differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202605569U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688569A (en) * | 2012-05-30 | 2012-09-26 | 浙江左易电力设备有限公司 | Mesh belt speed automatic controller |
| CN114148830A (en) * | 2021-12-03 | 2022-03-08 | 航宇救生装备有限公司 | Aircraft cabin door warning protection mechanism |
-
2012
- 2012-05-30 CN CN 201220247727 patent/CN202605569U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688569A (en) * | 2012-05-30 | 2012-09-26 | 浙江左易电力设备有限公司 | Mesh belt speed automatic controller |
| CN102688569B (en) * | 2012-05-30 | 2014-12-03 | 浙江左易电力设备有限公司 | Mesh belt speed automatic controller |
| CN114148830A (en) * | 2021-12-03 | 2022-03-08 | 航宇救生装备有限公司 | Aircraft cabin door warning protection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121219 Effective date of abandoning: 20141203 |
|
| RGAV | Abandon patent right to avoid regrant |