CN203754334U - Quick lifting structure of hand hoist - Google Patents
Quick lifting structure of hand hoist Download PDFInfo
- Publication number
- CN203754334U CN203754334U CN201420155396.2U CN201420155396U CN203754334U CN 203754334 U CN203754334 U CN 203754334U CN 201420155396 U CN201420155396 U CN 201420155396U CN 203754334 U CN203754334 U CN 203754334U
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- torsion spring
- lifting structure
- torsion
- ratchet
- major axis
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Abstract
The utility model provides a quick lifting structure of a hand hoist. The quick lifting structure of the hand hoist solves the problems of using inconvenience and low lifting speed of an existing hand hoist. The quick lifting structure of the hand hoist comprises a long shaft; the long shaft is sequentially provided with a brake base, a ratchet wheel, a reversing ratchet wheel, a cam, a hand wheel and a torsion spring seat from inside to outside in a sleeve mode; a first torsion spring is arranged between the torsion spring seat and the hand wheel for pressing the hand wheel, a second torsion spring is arranged between the hand wheel and the reversing ratchet wheel for pressing the reversing ratchet wheel, the first torsion spring is a counterclockwise torsion spring, the second torsion spring is a clockwise torsion spring, and the torsion torque of the first torsion spring is greater than that of the second torsion spring. The quick lifting structure of the hand hoist is provided with the torsion springs in different torsion direction and is set with the elasticity relationship between the two torsion springs to realize quick and convenient lifting operations of the hand hoist through the degree of the torque matching with the brake friction of the ratchet wheel, has the advantages of simple and compact structure, no deformation proneness, using flexibility, lightness, convenience and safety and the like, and is applicable to high-altitude operations.
Description
Technical field
The utility model belongs to the fast lifting structure of Lever Blocks technical field, particularly a kind of lever hoist.
Background technology
Lever Blocks is that a use is simple, Manual hoisting instrument easy to carry.The operations such as it can promote, draw, decline, calibration.Its hoisting capacity is generally no more than 50T.Lever Blocks is widely used in the equipment of the departments such as shipbuilding, electric power, transportation, building, mine, post and telecommunications and installs, article lifting, parts tractive etc.
The screw of existing lever hoist is easily loosening, and link is easily out of shape, and causes and comes off, and produces potential safety hazard, and the old product of traditional lever hoist is four lines chain, and its hoisting speed is slow, uses inconvenience.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, proposed a kind of utilization arrange difference turn round to torsion spring, and by regulating both the interaction of amount of elasticity relation to coordinate, realize the lifting fast lifting structure of lever hoist easily.
The purpose of this utility model can realize by following technical proposal: a kind of fast lifting structure of lever hoist, comprise major axis, described major axis is sheathed brake seat, ratchet, commutation ratchet, cam, handwheel and torsion spring seat in turn from the inside to the outside, it is characterized in that, the first torsion spring is set between described torsion spring seat and handwheel and carrys out pressing handwheel, between described handwheel and commutation ratchet, the second torsion spring is set and compresses commutation ratchet, described the first torsion spring is conter clockwise torsion spring, the second torsion spring is cw torsion spring, and the torsion of the first torsion spring is greater than the torsion of the second torsion spring.
In the fast lifting structure of above-mentioned lever hoist, on described ratchet two sides, admittedly post brake facing, the brake facing of the side end face of commutation ratchet that reclines wherein, the recline end face of brake seat of the brake facing of another side.
In the fast lifting structure of above-mentioned lever hoist, on the perisporium of described major axis, be arranged with spline, the internal perisporium of described brake seat is convexly equipped with female splines, and described female splines is embedded and in spline, forms clamping and be connected.
In the fast lifting structure of above-mentioned lever hoist, described major axis periphery is also arranged with spanner, and described spanner is sheathed on commutation ratchet periphery.
In the fast lifting structure of above-mentioned lever hoist, described major axis periphery is sheathed casing also, and described chassis cover is located at the periphery of ratchet and brake seat, and described spanner and casing form clamping and be connected.
In the fast lifting structure of above-mentioned lever hoist, the curved snap fit of establishing in described spanner one side ports, arranges draw-in groove on the port of described casing, and described snap fit inlay card enters in draw-in groove to form and be connected.
In the fast lifting structure of above-mentioned lever hoist, there is setscrew nut described major axis end by Screw assembly, and described setscrew nut leans torsion spring seat and forms fastening assembling.
Compared with prior art, the fast lifting structure of this lever hoist be provided with difference turn round to the first torsion spring and the second torsion spring, and the torsion that the first torsion spring is set is greater than the second torsion spring torsion, the magnitude relationship that coordinates ratchet drag friction power by torsion, realize lever hoist fast, descending operation easily, and have simple and compact for structure, be not easy distortion, use lithe, the features such as convenience, safety, applicable to aloft work.
Accompanying drawing explanation
Fig. 1 is the lifting status architecture schematic diagram of the fast lifting structure of this lever hoist.
Fig. 2 is the fast state structural representation of the fast lifting structure of this lever hoist.
In figure, 1, torsion spring seat; 2, the first torsion spring; 3, handwheel; 4, cam; 5, the second torsion spring; 6, commutation ratchet; 7, ratchet; 8, brake seat; 9, major axis; 10, casing; 11, spanner.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As illustrated in fig. 1 and 2, the fast lifting structure of this lever hoist comprises major axis 9, sheathed brake seat 8, ratchet 7, commutation ratchet 6, cam 4, handwheel 3 and torsion spring seat 1 in turn from the inside to the outside on major axis 9, there is setscrew nut major axis 9 ends by Screw assembly, and setscrew nut leans the fastening assembling of torsion spring seat 1 formation.
Ratchet posts brake facing on 7 two sides admittedly, the brake facing of the side end face of commutation ratchet 6 that reclines wherein, the recline end face of brake seat 8 of the brake facing of another side.
On the perisporium of major axis 9, be arranged with spline, the internal perisporium of brake seat 8 is convexly equipped with female splines, and female splines is embedded and in spline, forms clamping and be connected.
The first torsion spring 2 is set between torsion spring seat 1 and handwheel 3 and carrys out pressing handwheel 3, between handwheel 3 and commutation ratchet 6, the second torsion spring 5 is set and compresses commutation ratchet 6.The first torsion spring 2 is conter clockwise torsion spring, and the second torsion spring 5 is cw torsion spring, and the torsion of the first torsion spring 2 is greater than the torsion of the second torsion spring 5.
Major axis 9 peripheries are sheathed casing 10 also, and casing 10 covers at the periphery of ratchet 7 and brake seat 8.Major axis 9 peripheries are also arranged with spanner 11, and this spanner 11 is sheathed on commutation ratchet 6 peripheries.
Spanner 11 forms clamping with casing 10 and is connected, and is specially the curved snap fit of establishing in spanner 11 1 side ports, and draw-in groove is set on the port of casing 10, snap fit inlay card is entered in draw-in groove and form and be connected.
The lifting state of this lever hoist: torsion spring seat 1 is pushed down handwheel 3 by the first torsion spring 2, and handwheel 3 is located by cam 4, and tighten commutation ratchet 6 by the second torsion spring 5, the friction face of ratchet 7 two sides friction linings is all stopped extremely.Rotate handwheel 3, just drive commutation ratchet 6 to rotate, and commutation ratchet 6 kills brake seat 8 by ratchet 7, the female splines of brake seat 8 and major axis 9 link together, and major axis 9 rotates together thus.Major axis 9 rotates and drives chain hoist wheel to rotate by gear reduction ratio, and chain hoist wheel drives hoisting chain to rise.
The fast state of this lever hoist: torsion spring seat 1 is pushed down handwheel 3 by the first torsion spring 2, handwheel 3 is located by cam 4, because the first torsion spring 2 is that conter clockwise is turned round, the second torsion spring 5 is that cw is turned round, the torsion of the first torsion spring 2 is greater than the torsion of the second torsion spring 5, while extracting handwheel 3, effect due to the first torsion spring 2 torsion, the certain angle of torsion spring seat 1 meeting clickwise, effect due to the second torsion spring 5 torsion, commutation ratchet 6 can be to rotating counterclockwise, commutation ratchet 6 will depart from the friction face of ratchet 7 like this, so brake gear can not produce braking effect, the fast rise that so just can realize product has declined.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used torsion spring seat 1 herein; The first torsion spring 2; Handwheel 3; Cam 4; The second torsion spring 5; Commutation ratchet 6; Ratchet 7; Brake seat 8; Major axis 9; Casing 10; Spanner 11 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. the fast lifting structure of a lever hoist, comprise major axis, described major axis is sheathed brake seat, ratchet, commutation ratchet, cam, handwheel and torsion spring seat in turn from the inside to the outside, it is characterized in that, the first torsion spring is set between described torsion spring seat and handwheel and carrys out pressing handwheel, between described handwheel and commutation ratchet, the second torsion spring is set and compresses commutation ratchet, described the first torsion spring is conter clockwise torsion spring, the second torsion spring is cw torsion spring, and the torsion of the first torsion spring is greater than the torsion of the second torsion spring.
2. the fast lifting structure of lever hoist according to claim 1, is characterized in that, on described ratchet two sides, admittedly posts brake facing, the brake facing of the side end face of commutation ratchet that reclines wherein, the recline end face of brake seat of the brake facing of another side.
3. the fast lifting structure of lever hoist according to claim 1, is characterized in that, on the perisporium of described major axis, is arranged with spline, and the internal perisporium of described brake seat is convexly equipped with female splines, and described female splines is embedded and in spline, forms clamping and be connected.
4. the fast lifting structure of lever hoist according to claim 1, is characterized in that, described major axis periphery is also arranged with spanner, and described spanner is sheathed on commutation ratchet periphery.
5. the fast lifting structure of lever hoist according to claim 4, is characterized in that, described major axis periphery is sheathed casing also, and described chassis cover is located at the periphery of ratchet and brake seat, and described spanner and casing form clamping and be connected.
6. the fast lifting structure of lever hoist according to claim 5, is characterized in that, the curved snap fit of establishing in described spanner one side ports, arranges draw-in groove on the port of described casing, and described snap fit inlay card enters in draw-in groove to form and be connected.
7. according to the fast lifting structure of the lever hoist described in any one in claim 1 to 6, it is characterized in that, there is setscrew nut described major axis end by Screw assembly, and described setscrew nut leans torsion spring seat and forms fastening assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155396.2U CN203754334U (en) | 2014-04-01 | 2014-04-01 | Quick lifting structure of hand hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155396.2U CN203754334U (en) | 2014-04-01 | 2014-04-01 | Quick lifting structure of hand hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754334U true CN203754334U (en) | 2014-08-06 |
Family
ID=51249633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155396.2U Expired - Fee Related CN203754334U (en) | 2014-04-01 | 2014-04-01 | Quick lifting structure of hand hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203754334U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084240A (en) * | 2015-09-01 | 2015-11-25 | 浙江冠林机械有限公司 | Outer cover structure of lever block |
| CN105347221A (en) * | 2015-11-24 | 2016-02-24 | 浙江维大茵特起重设备有限公司 | Waterproof lever block |
| CN106006437A (en) * | 2016-08-11 | 2016-10-12 | 杭州维多利机械有限公司 | Lever hoist capable of quickly ascending and descending in no-load state |
-
2014
- 2014-04-01 CN CN201420155396.2U patent/CN203754334U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084240A (en) * | 2015-09-01 | 2015-11-25 | 浙江冠林机械有限公司 | Outer cover structure of lever block |
| CN105347221A (en) * | 2015-11-24 | 2016-02-24 | 浙江维大茵特起重设备有限公司 | Waterproof lever block |
| CN106006437A (en) * | 2016-08-11 | 2016-10-12 | 杭州维多利机械有限公司 | Lever hoist capable of quickly ascending and descending in no-load state |
| CN106006437B (en) * | 2016-08-11 | 2018-09-28 | 杭州维多利机械有限公司 | When a kind of no-load can fast lifting Lever Blocks |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170401 |