CN101402439B - Multifunctional weight safety device - Google Patents
Multifunctional weight safety device Download PDFInfo
- Publication number
- CN101402439B CN101402439B CN2008101945351A CN200810194535A CN101402439B CN 101402439 B CN101402439 B CN 101402439B CN 2008101945351 A CN2008101945351 A CN 2008101945351A CN 200810194535 A CN200810194535 A CN 200810194535A CN 101402439 B CN101402439 B CN 101402439B
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- loam cake
- base plate
- screw rod
- iii
- fine setting
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Abstract
The invention relates to a multi-function weight safety device, which is mainly used for safe guarding of a material hoisting machine such as a headframe, a portal frame and the like. The safety device comprises a lifting lug (1), an upper cover (2), a protecting cap (3), a connecting rod (4), a bottom board (5), a pulling rod (6), a movable plate (7) and a main spring (8). The device is characterized in that a supporting rod (9) is arranged on the bottom board (5); a level (10) is arranged on the top end of the supporting rod (9); a trim screw rod I (11) is arranged on the upper end at one side of the level (10); a return spring I (12) is arranged on the upper end at the other side of the level (10); a travel switch I (13) is arranged on the lower end of the level (10); a push rod (15) passes through a return spring II (14) and the bottom board (5); the upper end of the push rod (15) is provided with a travel switch II (16); a trim screw rod III (18) is arranged on the upper cover (2); a vertical bar of the trim screw rod III (18) passes through the upper cover (2) and extends out of the upper plane of the movable plate (7); and the lower end of the trim screw rod III (18) is provided with a travel switch III (17) which is fixed on the movable plate (7). The device integrates an overload limiting stopper, a superior limiting stopper and an interior limit stopper into a whole,and has the advantages of compact structure, and convenient, safe and reliable use.
Description
(1) technical field
The present invention relates to the gig limiting device, be specifically related to a kind of multifunctional weight safety device, be mainly used in the safety precaution of material elevators such as derrick, portal frame.Belong to the weight-lifting equipment safety gear.
(2) background technology
Gig belongs to the hoisting crane classification, and it forms support body as external application elevator, tower crane by standard knot or gauge member, form transmission device by assembly pulley and steel rope, mix winch again and be used as power, make cage lifting in support body of loaded material, finish whole work of hoisting crane.As vertical transport equipment, the various places site operation generally uses, and the safety performance of its use also receives much concern.
CN2441786Y has announced a kind of crane safety limiting device, is the limes superiors limiting device, stops continue to rise when crane rises near the extreme higher position, prevents that cage from rushing to summit, and has ensured construction safety.This kind crane safety limiting device only can play the effect that prevents that cage from rushing to summit, but when cage weight is overweight, can't play safing effect.And material stretches out outside the cage and is stopped by support body in cage in the descending process of cage, and when perhaps coming downwards to ground, hoisting force changes, and this moment, winch continued downward movement, and the steel rope meeting overrelaxation on the winch easily produces the disorder cable phenomenon, causes potential safety hazard.Address the above problem as need, need reinstall overload limiting device and smallest limit limiting device, cause and use inconvenience.
(3) summary of the invention
The invention reside in and overcome above-mentioned deficiency, a kind of compact conformation, esy to use, safe and reliable is provided, collection overload limiting device, limes superiors limiting device and smallest limit limiting device are one, can prevent the multifunctional weight safety device that the winch lifting rope is lax.
The object of the present invention is achieved like this: a kind of multifunctional weight safety device, comprise hanger, loam cake, guard shield, pipe link, base plate, pull bar, shifting board, main spring, the top of described limiting device is loam cake, described hanger is arranged on the top end face middle part of loam cake, described pull bar is arranged under the loam cake bottom face, and described pull bar is
Type, described shifting board, main spring and base plate are sleeved on described pull bar from top to bottom successively
On the type montant, described pipe link passes loam cake, shifting board and base plate from top to bottom successively, two ends are fixed, described loam cake and base plate are outside equipped with guard shield, it is characterized in that: described base plate is provided with cramp bar, and described cramp bar top is provided with lever, and the side upper end of described lever is provided with fine setting screw rod I, the opposite side upper end of described lever, shifting board lower end are connected with pull back spring I, the lower end is provided with travel switches I
Also be provided with on the described base plate
The type push rod, described
Type push rod montant passes pull back spring II and base plate and stretches out the base plate lower plane, and described push rod upper end is provided with travel switches I I,
Described loam cake is provided with fine setting screw rod III, and described fine setting screw rod III montant passes pull back spring III and loam cake and stretches out and covers the plane, and described fine setting screw rod III lower end is provided with travel switches I II, and described travel switches I II is fixed on the shifting board.
Multifunctional weight safety device of the present invention is characterized in that described fine setting screw rod III places loam cake bottom part to be set with pull back spring III.
Multifunctional weight safety device of the present invention is characterized in that described
Type push rod bottom is lifted with weight.
Multifunctional weight safety device of the present invention, collection overload limiting device, limes superiors limiting device and smallest limit limiting device are one, compact conformation, esy to use, safe and reliable, its principle of work:
Overload limiting device part, when total lifting weight was no more than the setting value of safety, pull back spring I withstood lever, and lever is rotated counterclockwise, the open contact closure of travel switches I, the rising circuit of connection winch control circuit, bird cage rises; When promoting the setting value that total amount surpasses safety, it is big that safety pull bar holding capacity becomes, the deflection of main spring increases, and pull bar drives the downward displacement of shifting board and increases, and fine setting screw rod I activation lever clockwise rotates around the twisted point of cramp bar, pull back spring I compression, travel switch resets, and the open contact in the switch separates, and cuts off riser circuit in the winch control circuit, winch shuts down, and realizes the purpose of restriction lifting capacity.
Limes superiors limiting device part, weight has been hung in the push rod bottom, and when cage normally moved, push rod moved under the effect of weight, and the normally closed contact of travel switch is connected winch ascent direction circuit; When the certain altitude that drives to of cage, weight is held at the cage top, and the effect of weight disappears, and under the effect of pull back spring II, the normally closed contact of travel switch is thrown off, and cuts off winch control rising circuit, and cage stops to rise, and avoids cage to rush to summit.
Smallest limit limiting device part, when cage normally moved, under the effect of pulling force, main spring compressive deformation, shifting board drove travel switches I II to bottom offset, and the normally closed contact of travel switch is connected winch descent direction circuit; Material stretches out outside the cage and is stopped by support body in cage in the descending process of cage, when perhaps coming downwards to ground, the power that pull bar bears is near position zero, main spring resets into free state, shifting board drives on the travel switches I II and moves, and fine setting screw rod III withstands the contact of travel switches I II, and normally closed contact separates, cut off the control circuit of winch descent direction, make winch stop the operation of descent direction.Can prevent winch lifting rope overrelaxation and produce disorder cable.
(4) description of drawings
Fig. 1 is a multifunctional weight safety device framework scheme drawing of the present invention
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is that the K of Fig. 2 is to scheme drawing.
Fig. 4 cuts open birds-eye view for the A-A of Fig. 3.
Fig. 5 is that the L of Fig. 2 is to scheme drawing.
Among the figure: hanger 1, loam cake 2, guard shield 3, pipe link 4, base plate 5, pull bar 6, shifting board 7, main spring 8, cramp bar 9, lever 10, fine setting screw rod I11, pull back spring I12, travel switches I 13, pull back spring II14, push rod 15, travel switches I I16, travel switches I II17, fine setting screw rod III18, pull back spring III19.
(5) specific embodiment
Referring to Fig. 1, multifunctional weight safety device of the present invention, comprise hanger 1, loam cake 2, guard shield 3, pipe link 4, base plate 5, pull bar 6, shifting board 7, main spring 8, the top of described limiting device is loam cake 2, described hanger 1 is arranged on the top end face middle part of loam cake 2, described pull bar 6 is arranged under loam cake 2 bottom faces, and described pull bar 6 is
Type, described shifting board 7, main spring 8 and base plate 5 are sleeved on described pull bar 6 from top to bottom successively
On the type montant, described pipe link 4 passes loam cake 2, shifting board 7 and base plate 5 from top to bottom successively, and two ends are fixed, and described loam cake 2 is outside equipped with guard shield 3 with base plate 5.
Described base plate 5 is provided with cramp bar 9, described cramp bar 9 tops are provided with lever 10, the one side upper end of described lever 10 is provided with fine setting screw rod I11, and the opposite side upper end of described lever 10, shifting board 7 lower ends are connected with pull back spring I12, the lower end is provided with travel switches I 13.
Also be provided with T type push rod 15 on the described base plate 5, described T type push rod 15 montants pass pull back spring II14 and base plate 5 and stretch out base plate 5 lower planes, stretch out on push rod 15 montants of base plate 5 lower planes and be lifted with weight, described push rod 15 upper ends are provided with travel switches I I16
Described loam cake 2 is provided with fine setting screw rod III18, described fine setting screw rod III18 montant passes pull back spring III19 and loam cake 2 and stretches out plane on the loam cake 2, described fine setting screw rod III18 lower end is provided with travel switches I II17, and described travel switches I II17 is fixed on the shifting board 7.
Claims (3)
1. multifunctional weight safety device, comprise hanger (1), loam cake (2), guard shield (3), pipe link (4), base plate (5), pull bar (6), shifting board (7), main spring (8), the top of described safety is loam cake (2), described hanger (1) is arranged on the top end face middle part of loam cake (2), described pull bar (6) is arranged under loam cake (2) bottom face, described pull bar (6) is the T type, described shifting board (7), main spring (8) and base plate (5) are sleeved on described pull bar (6) the T type montant from top to bottom successively, described pipe link (4) passes loam cake (2) from top to bottom successively, shifting board (7) and base plate (5), pipe link (4) two ends are fixed, described loam cake (2) is outside equipped with guard shield (3) with base plate (5), it is characterized in that: described base plate (5) is provided with cramp bar (9), described cramp bar (9) top is provided with lever (10), the one side upper end of described lever (10) is provided with fine setting screw rod I (11), the opposite side upper end of described lever (10), shifting board (7) lower end is connected with pull back spring I (12), the opposite side lower end of lever (10) is provided with travel switches I (13)
Also be provided with T type push rod (15) on the described base plate (5), described T type push rod (15) montant passes pull back spring II (14) and base plate (5) and stretches out base plate (5) lower plane, and described push rod (15) upper end is provided with travel switches I I (16),
Described loam cake (2) is provided with fine setting screw rod III (18), described fine setting screw rod III (18) montant passes loam cake (2) and stretches out loam cake (2) and go up the plane, described fine setting screw rod III (18) lower end is provided with travel switches I II (17), and described travel switches I II (17) is fixed on the shifting board (7).
2. multifunctional weight safety device according to claim 1 is characterized in that described fine setting screw rod III (18) places loam cake (2) bottom part to be set with pull back spring III (19).
3. multifunctional weight safety device according to claim 2 is characterized in that described T type push rod (15) bottom is lifted with weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101945351A CN101402439B (en) | 2008-10-30 | 2008-10-30 | Multifunctional weight safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101945351A CN101402439B (en) | 2008-10-30 | 2008-10-30 | Multifunctional weight safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101402439A CN101402439A (en) | 2009-04-08 |
| CN101402439B true CN101402439B (en) | 2011-04-13 |
Family
ID=40536624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101945351A Expired - Fee Related CN101402439B (en) | 2008-10-30 | 2008-10-30 | Multifunctional weight safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101402439B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI483889B (en) * | 2012-11-19 | 2015-05-11 | Hiwin Tech Corp | Screw type lifting transmission mechanism |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013205000A1 (en) | 2013-03-21 | 2014-09-25 | M.A.T. Malmedie Antriebstechnik Gmbh | Overload protection device for cable strands |
| CN116462101B (en) * | 2023-05-10 | 2024-01-05 | 江苏省特种设备安全监督检验研究院 | Height limiter with safety protection function for lifter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3728502A (en) * | 1971-09-24 | 1973-04-17 | Columbus Mckinnon Corp | Electric hoist overload protection device |
| CN2167078Y (en) * | 1992-08-28 | 1994-06-01 | *** | Device for limitting excess load and preventing rope from being in non-order |
| CN2490139Y (en) * | 2001-03-21 | 2002-05-08 | *** | Safety device for hoister |
| CN2761562Y (en) * | 2004-12-27 | 2006-03-01 | 谌志祥 | Controller for stroke limit |
| CN201296623Y (en) * | 2008-10-30 | 2009-08-26 | 江阴市星联建筑机械厂 | Multifunctional weight safe device |
-
2008
- 2008-10-30 CN CN2008101945351A patent/CN101402439B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3728502A (en) * | 1971-09-24 | 1973-04-17 | Columbus Mckinnon Corp | Electric hoist overload protection device |
| CN2167078Y (en) * | 1992-08-28 | 1994-06-01 | *** | Device for limitting excess load and preventing rope from being in non-order |
| CN2490139Y (en) * | 2001-03-21 | 2002-05-08 | *** | Safety device for hoister |
| CN2761562Y (en) * | 2004-12-27 | 2006-03-01 | 谌志祥 | Controller for stroke limit |
| CN201296623Y (en) * | 2008-10-30 | 2009-08-26 | 江阴市星联建筑机械厂 | Multifunctional weight safe device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI483889B (en) * | 2012-11-19 | 2015-05-11 | Hiwin Tech Corp | Screw type lifting transmission mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101402439A (en) | 2009-04-08 |
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