CN201376837Y - Lever type lifting hook dropping prevention device - Google Patents
Lever type lifting hook dropping prevention device Download PDFInfo
- Publication number
- CN201376837Y CN201376837Y CN200920024400U CN200920024400U CN201376837Y CN 201376837 Y CN201376837 Y CN 201376837Y CN 200920024400 U CN200920024400 U CN 200920024400U CN 200920024400 U CN200920024400 U CN 200920024400U CN 201376837 Y CN201376837 Y CN 201376837Y
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- China
- Prior art keywords
- pole
- suspension hook
- rod
- lateral plates
- side plate
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- Expired - Fee Related
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- 230000002265 prevention Effects 0.000 title abstract description 3
- 239000000725 suspension Substances 0.000 claims description 35
- 238000010276 construction Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 238000003466 welding Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 description 4
- 238000009432 framing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to a lever type lifting hook dropping prevention device, which comprises a front stopping rod, two identical lateral plates (each lateral plate comprises a front lateral plate and a rear lateral plate, and the length ratio of the front and lateral plates is less than 1), a tail rod (the same with the front stopping rod) and positioning bolts, wherein a symmetrical rigid structure frame work (a line drawn through midpoints of the front stopping rod and the tail rod serves as a symmetric axis) is formed by welding the front stopping rod, the lateral plates and the tail rod together; two holes are respectively formed at the connecting part of the front lateral plate and the connecting part of the rear lateral plate of the symmetric lateral plates in the frame work; the hole is matched with a hole on a lug boss at neck part of the lifting hook; during the installation, the frame work is adjusted to be on a straight line on which three holes are formed, and fixed by positioning bolts in a manner of penetrating the three holes; and the torque of a part consisting of the front stopping rod and the two front lateral plates is smaller than that of a part consisting of the rail rod and the two rear lateral plates. By taking the advantages of torque differences on two sides of each positioning bolt serving as a pivot, the utility model ensures that the front stopping rod always snuggles up to the head of the hook to prevent a steel rope on the hook from dropping off. Moreover, the utility model has the advantage of simple structure, safety and stability.
Description
Technical field
The utility model relates to the suspension hook on the weight-lifting equipment, relates in particular to the anti-drop device of suspension hook.
Background technology
At present, weight-lifting equipment breaks off relations for the steel rope that prevents to hang in the lifting operation process on the suspension hook, generally adopt anti-drop device at the suspension hook place, anti-drop device commonly used generally adopts the board-like structure of spring catch, rely on the elastic force of spring that baffle plate is withstood on suspension hook gib head inboard, block the steel rope that is enclosed within on the suspension hook, prevent that steel rope from ejecting.But in use, spring damages easily, and causes baffle position to be offset, and causes the ejection of steel rope easily, brings potential safety hazard for normal lifting operation.
Summary of the invention
The utility model provides a kind of lever-type suspension hook anti-drop device.This device relies on the torque difference of lever " fulcrum " both sides according to lever principle, makes the retaining pole of the little end of moment block the suspension hook mouth, prevents that the steel rope unhook on the suspension hook from ejecting, and increases the safety in the lifting operation.
The technical scheme that its technical matters that solves the utility model adopts: a kind of lever-type suspension hook anti-drop device comprises two blocks of identical side plates, a front pole (with suspension hook gib head direct contact), afterbody pole and a cover dowel bolt.Front pole and afterbody pole are identical, and side plate, front pole and afterbody pole are welded into the structural framing of a rigidity, and this framework is the symmetrical structure of axis of symmetry with the mid point line of front pole and afterbody pole.
Above-mentioned lever-type suspension hook anti-drop device, the Effective width of affiliated rigid construction framework (being the length of front pole and afterbody pole) is bigger 4～6 millimeters than suspension hook body maximum width.
Above-mentioned lever-type suspension hook anti-drop device, the side plate of its rigid construction framework is made up of two parts, and these two parts have an angle α at the intersection point place, α=90 °.Is front side plate from intersection point to the part the front pole, is rear quarter panel from intersection point to the part the afterbody pole, and the length of front side plate and rear quarter panel is than less than 1.
Above-mentioned lever-type suspension hook anti-drop device, its structural framing has the identical hole of a pair of size symmetrically at the front and back of each side side plate intersection point place, and this is complementary to the hole on hole and coupler body top (with hook neck closure) the processing boss (this hole also can be used as the board-like anti-drop device of spring catch be used for fixing spring stop used).
Above-mentioned lever-type suspension hook anti-drop device, when mounted, earlier the rigid construction framework " is inserted in " from the suspension hook gib head, adjust the position of structural framing, make when the hole on the boss is on same straight line above two knock holees and the hook on the framework symmetry side plate, be the tram, penetrate with the dowel bolt that is complementary with it then that three holes are fixing to get final product.
The beneficial effects of the utility model: (1) this device easy accessibility, safe and reliable; (2) this device adopts the framework welding, and sound construction is light, simple.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the local A place enlarged drawing of Fig. 3.
Among the figure: 1-processes boss, 2-dowel bolt, 3-front side plate, 4-front pole, 5-suspension hook head, 6-rear quarter panel, 7-afterbody pole, 8-nut.
The specific embodiment
Shown in Fig. 1,2,3,4, a kind of lever-type suspension hook anti-drop device comprises front pole 4, front side plate 3, rear quarter panel 6, afterbody pole 7, dowel bolt 2 and nut 8, wherein keeps off pole 4 and afterbody pole 7 is identical.This anti-drop device is to be the symmetrical structure of axis of symmetry with suspension hook line of centers OO.Front pole 4, front side plate 3 (2), rear quarter panel 6 (2) and afterbody pole 7 are formed a rigid construction framework by welding manner.This framework also is to be the symmetrical structure of axis of symmetry with front pole and afterbody pole mid point line, and the Effective width of framework (length of front pole 4) is bigger 4～6 millimeters than suspension hook body maximum width, i.e. the big h=2 of each side～3 millimeters.
As shown in Figure 1, 2, 3, front side plate 3 and rear quarter panel 6 at the intersection point place at an angle of 90, and this intersection point place symmetry have an identical hole of a pair of size, this hole size is complementary with the hole that suspension hook is processed on the boss 1, also is complementary with dowel bolt 2.
As shown in Figure 1, front side plate compares less than 1 with the length of rear quarter panel, and promptly the length of front side plate 3 is shorter than the length of rear quarter panel 6, and they form the side plate of disconnecting prevention structure framework jointly.
As Fig. 1,2,3, shown in 4, by front pole 4, front side plate 3 (totally 2), the rigid construction framework that rear quarter panel 6 (totally 2) and afterbody pole 7 are formed is when installing on suspension hook, earlier this rigid construction back-end framework (afterbody pole 7) part is inserted in suspension hook from suspension hook head 5, adjust the position, hole on mounting hole on these framework two symmetrical side plates and suspension hook processing boss 1 is on same straight line, insert from the hole of framework one side on processing boss 1 with dowel bolt 2 then, stretch out in hole from another side plate of framework, the nut 8 of screwing on, flexible in order to make in the whole anti-drop device use, afterbody and the nut 8 that must guarantee dowel bolt 2 keep a sideshake h1 with rigid construction framework respective side panels exterior lateral sides respectively, h1=1.5～2 millimeter.
As shown in Figure 1, in use, whole anti-drop device is with the lever construction of dowel bolt 2 for " fulcrum ", because the moment of frame front (being made up of two front side plates 3, front pole 4) is less than the frame rear portion moment of (being made up of two rear quarter panels 6, afterbody pole 7), under the effect of torque difference, front pole 4 contacts and is close to suspension hook head 5 all the time, prevents that the steel rope on the suspension hook from breaking off relations; When extension is plucked steel rope, only need the front side plate 3 (perhaps rear quarter panel 6) of this device frame is rotated counterclockwise an angle, the space of " spilling " steel rope turnover between front pole 4 and the suspension hook gib head 5 is got final product, very convenient.
This anti-drop device can prevent the unhook of steel rope in hoisting process by actv., can hang steel rope easily again and pluck.Whole in addition anti-drop device adopts the steel framework welding, and sound construction is simple, light.
Claims (3)
1. lever-type suspension hook anti-drop device, comprise front pole, side plate, afterbody pole and dowel bolt, it is characterized in that front pole, side plate, afterbody pole are by being welded to form the rigid construction framework of a symmetry, axis of symmetry is the mid point line of front pole and afterbody pole, and the front pole is close to the suspension hook inner portion.
2. lever-type suspension hook anti-drop device according to claim 1 is characterized in that the biside plate of symmetrical structure framework is identical and all is made up of front side plate and rear quarter panel, and the length of forward and backward side plate is than less than 1, and orthogonal at the intersection point place.
3. lever-type suspension hook anti-drop device according to claim 1 it is characterized in that front pole and backstop pole are identical, and its length is bigger 4～6 millimeters than suspension hook body maximum width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920024400U CN201376837Y (en) | 2009-04-01 | 2009-04-01 | Lever type lifting hook dropping prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920024400U CN201376837Y (en) | 2009-04-01 | 2009-04-01 | Lever type lifting hook dropping prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201376837Y true CN201376837Y (en) | 2010-01-06 |
Family
ID=41516936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920024400U Expired - Fee Related CN201376837Y (en) | 2009-04-01 | 2009-04-01 | Lever type lifting hook dropping prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201376837Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774744A (en) * | 2012-06-19 | 2012-11-14 | 宁波雄狮机械制造有限公司 | Double-sided symmetric lifting hook provided with self-lock mechanism |
| CN103241645A (en) * | 2013-05-31 | 2013-08-14 | 国家电网公司 | Self-locking composite conducting wire hoisting hook |
| CN103612974A (en) * | 2013-12-06 | 2014-03-05 | 攀枝花钢城集团有限公司 | Rope locking device of lifting hook of crane |
| CN103863942A (en) * | 2012-12-13 | 2014-06-18 | 北汽福田汽车股份有限公司 | Lifting hook anti-unhooking apparatus |
| CN104294811A (en) * | 2014-07-16 | 2015-01-21 | 大连大金马基础建设有限公司 | Dynamic compaction disengaging gear |
| CN104386577A (en) * | 2014-11-29 | 2015-03-04 | 连云港远洋流体装卸设备有限公司 | Lifting hook |
| CN104876115A (en) * | 2015-05-28 | 2015-09-02 | 柳州钢铁股份有限公司 | Self-locking type unhooking prevention device |
| CN107117528A (en) * | 2017-06-27 | 2017-09-01 | 徐州存荣电子商务有限公司 | A kind of crane hook anti-drop device for building |
| CN107265284A (en) * | 2017-06-15 | 2017-10-20 | 合肥海腾软件科技有限公司 | Crane hook anti-drop device |
| CN107651555A (en) * | 2017-10-10 | 2018-02-02 | 中车大连机车车辆有限公司 | Suspension hook, auxiliary hook foolproof apparatus and application method |
-
2009
- 2009-04-01 CN CN200920024400U patent/CN201376837Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774744A (en) * | 2012-06-19 | 2012-11-14 | 宁波雄狮机械制造有限公司 | Double-sided symmetric lifting hook provided with self-lock mechanism |
| CN103863942A (en) * | 2012-12-13 | 2014-06-18 | 北汽福田汽车股份有限公司 | Lifting hook anti-unhooking apparatus |
| CN103241645A (en) * | 2013-05-31 | 2013-08-14 | 国家电网公司 | Self-locking composite conducting wire hoisting hook |
| CN103612974A (en) * | 2013-12-06 | 2014-03-05 | 攀枝花钢城集团有限公司 | Rope locking device of lifting hook of crane |
| CN104294811A (en) * | 2014-07-16 | 2015-01-21 | 大连大金马基础建设有限公司 | Dynamic compaction disengaging gear |
| CN104294811B (en) * | 2014-07-16 | 2016-06-01 | 大连大金马基础建设有限公司 | Strong rammer trip mechanism |
| CN104386577A (en) * | 2014-11-29 | 2015-03-04 | 连云港远洋流体装卸设备有限公司 | Lifting hook |
| CN104876115A (en) * | 2015-05-28 | 2015-09-02 | 柳州钢铁股份有限公司 | Self-locking type unhooking prevention device |
| CN107265284A (en) * | 2017-06-15 | 2017-10-20 | 合肥海腾软件科技有限公司 | Crane hook anti-drop device |
| CN107117528A (en) * | 2017-06-27 | 2017-09-01 | 徐州存荣电子商务有限公司 | A kind of crane hook anti-drop device for building |
| CN107651555A (en) * | 2017-10-10 | 2018-02-02 | 中车大连机车车辆有限公司 | Suspension hook, auxiliary hook foolproof apparatus and application method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20120401 |