CN2394889Y - Brake release type circular chain hand hoist - Google Patents
Brake release type circular chain hand hoist Download PDFInfo
- Publication number
- CN2394889Y CN2394889Y CN 99212230 CN99212230U CN2394889Y CN 2394889 Y CN2394889 Y CN 2394889Y CN 99212230 CN99212230 CN 99212230 CN 99212230 U CN99212230 U CN 99212230U CN 2394889 Y CN2394889 Y CN 2394889Y
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- China
- Prior art keywords
- chain
- utility
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- hand
- major axis
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- Expired - Lifetime
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Abstract
The utility model relates to a brake release type circular chain hand hoist, relating to small hoisting machinery for hoisting and towing weights. The utility model has the technical proposals that an Indirect friction type braking mechanism (3) and a hand wheel (1) are arranged on the right side of a machine body; when the fast motion of a chain is made at zero load, the hand wheel only needs to be counterclockwise rotated; then, the indirect friction type braking mechanism (3) is disengaged from braking to tow the chain to conveniently move fast. The utility model overcomes the defects of dumb brake disengagement and costly process technology of common chain hand hoist.
Description
The utility model braking disengagement type hand chain lever hoist is a kind of weight lifting and small-sized elevator machinery that draws of being used for.
Common in the market hand chain lever hoist mostly adopts the major axis formula structure that is out of gear, the shortcoming of this series products is the stop mechanism troublesome poeration, the disengagement of major axis gear and mesh dumb, and adopt invoice serration to connect owing to be relevant to braking some parts partly in its housing construction, technology difficulty is big, tooling cost from.
At above-mentioned shortcoming, the utility model provides a kind of and had both made in operation, is easy to the braking disengagement type hand chain lever hoist of processing again.
The utility model mainly comprises following parts: (1) handwheel, (2) handle operation mechanism, (3) indirect friction-type stop mechanism (this mechanism applies for utility model patent separately), (4) ratchet case, (5) hook axle, (6) hanging mechanism, (7) frame, (8) hoisting mechanism, (9) speed-changing mechanism, (10) major axis gear; The indirect friction-type stop mechanism (3) with disengagement function has been installed on the right side that it is characterized in that body, the left end of ratchet case (4) is connected with frame (7), its right-hand member and handle operation mechanism (2) employing activity riveted joint, and in indirect friction-type stop mechanism (3) is contained within; The left end of friction-type stop mechanism (3) is connected with a joggle by major axis gear (10) in hoisting mechanism (8) and speed-changing mechanism (9) indirectly, and its right-hand member is equipped with handwheel (1) by the screw connection.During hand chain lever hoist work, handle operation mechanism (2) drives major axis gear (10), speed-changing mechanism (9) orders about rising or the decline that hoisting mechanism (8) is made weight.With the handwheel left-hand revolution, braking is thrown off when unloaded, drag chain and can make quick travel.
Advantage of the present utility model is as follows: one, stop mechanism flexible operation, easy, when particularly when zero load, making the chain quick travel, only need rotate counterclockwise handwheel (1), and can realize the quick travel of chain easily.Two, simple in structure, be convenient to processing, reduced tooling cost.Three, good braking effect.If misoperation occurring causes that weight falls, the utility model can be prevented the weight tenesmus in instantaneous enforcement braking during use.
Fig. 1 is the utility model braking disengagement type hand chain lever hoist structural representation.
Below in conjunction with Fig. 1, working process of the present utility model is described further: pull handle operation mechanism (2) and make cw or left-hand revolution, because major axis gear (10) is gone up the effect of screw thread, drive indirect friction-type stop mechanism (3), major axis gear (10), make cw simultaneously or rotate counterclockwise, and by major axis gear (10) power is delivered to hoisting mechanism (8) through speed-changing mechanism (9), hoisting mechanism (8) rotates the weight lifting or descends.No matter weight is in lifting or decline process, as long as handle operation mechanism (2) stops operating, cucurbit promptly can be implemented braking.This is because the action of gravity of weight when hanging, by hoisting mechanism (8), and speed-changing mechanism (9) and force major axis gear (10) rotation, effect because of major axis gear (10) screw thread, each part compresses mutually in the friction-type stop mechanism (3) indirectly, and friction force increases, thereby forms braking.If need when zero load, to do the quick travel of chain, only need rotate counterclockwise handwheel, each part in the at this moment indirect friction-type stop mechanism (3) is because action of the spring produces the gap, and the braking disengagement is draged chain and just can be made quick travel.
Claims (1)
- A kind of braking disengagement type hand chain lever hoist that is used for weight lifting and traction, mainly by handwheel, handle operation mechanism, indirect friction-type stop mechanism, the ratchet case, hanging mechanism, frame, speed-changing mechanism, hoisting mechanism and major axis gear are formed, indirect friction-type stop mechanism (3) has been installed on the right side that it is characterized in that body; The left end of ratchet case (4) is connected with frame (7), its right-hand member and handle operation mechanism (2) employing activity riveted joint; The left end of friction-type stop mechanism (3) is connected with a joggle by major axis gear (10) in hoisting mechanism (8) and speed-changing mechanism (9) indirectly, and its right-hand member is equipped with handwheel (1) by the screw connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212230 CN2394889Y (en) | 1999-05-23 | 1999-05-23 | Brake release type circular chain hand hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212230 CN2394889Y (en) | 1999-05-23 | 1999-05-23 | Brake release type circular chain hand hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2394889Y true CN2394889Y (en) | 2000-09-06 |
Family
ID=34004983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99212230 Expired - Lifetime CN2394889Y (en) | 1999-05-23 | 1999-05-23 | Brake release type circular chain hand hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2394889Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351166C (en) * | 2005-08-25 | 2007-11-28 | 邱以刚 | Light aluminium alloy chain block |
| CN105129655A (en) * | 2015-09-01 | 2015-12-09 | 浙江冠林机械有限公司 | Novel lever hoist |
| CN105174100A (en) * | 2015-09-01 | 2015-12-23 | 浙江冠林机械有限公司 | Limiting pull ring of lever block |
-
1999
- 1999-05-23 CN CN 99212230 patent/CN2394889Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351166C (en) * | 2005-08-25 | 2007-11-28 | 邱以刚 | Light aluminium alloy chain block |
| CN105129655A (en) * | 2015-09-01 | 2015-12-09 | 浙江冠林机械有限公司 | Novel lever hoist |
| CN105174100A (en) * | 2015-09-01 | 2015-12-23 | 浙江冠林机械有限公司 | Limiting pull ring of lever block |
| CN105174100B (en) * | 2015-09-01 | 2017-09-08 | 浙江冠林机械有限公司 | A kind of spacing draw ring of Lever Blocks |
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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 |