CN110921495A - Novel electric hoist lifting hook - Google Patents
Novel electric hoist lifting hook Download PDFInfo
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- CN110921495A CN110921495A CN201911121068.4A CN201911121068A CN110921495A CN 110921495 A CN110921495 A CN 110921495A CN 201911121068 A CN201911121068 A CN 201911121068A CN 110921495 A CN110921495 A CN 110921495A
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- fixed
- shaft
- rotating arm
- far away
- strip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
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- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a novel electric hoist lifting hook, which relates to the technical field of electric hoists and adopts the technical scheme that the novel electric hoist lifting hook comprises a base plate, two vertical plates, a rotating shaft, two connecting strips, a first rotating arm, a second rotating arm and a hook claw, wherein the first connecting shaft is arranged at one end of the first rotating arm, which is far away from the connecting strips, and the second connecting shaft is arranged at one end of the hook claw, which is close to the first rotating arm; the second rotating arm comprises two connecting plates which are oppositely arranged, one end of each connecting plate, which is close to the first rotating arm, is rotatably connected with the first connecting shaft, and one end of each connecting plate, which is close to the hook claw, is rotatably connected with the second connecting shaft; a first driving mechanism for driving the second rotating arm to rotate is arranged between the base plate and the connecting strip; a second driving mechanism for driving the first rotating arm to rotate is arranged between the base plate and the vertical plate; and a third driving mechanism for driving the hook claw to rotate is arranged on the opposite inner sides of the two connecting plates. The invention solves the problem that the hanging ring is separated from the lifting hook due to the slipping of the hanging ring, and reduces the possibility of separating the hanging ring from the lifting hook.
Description
Technical Field
The invention relates to the technical field of electric hoists, in particular to a novel electric hoist lifting hook.
Background
At present, an electric hoist is special hoisting equipment and is installed on a crown block and a gantry crane, and the electric hoist has the characteristics of small volume, light dead weight, simplicity in operation, convenience in use and the like, and is used in places such as industrial and mining enterprises, storage, wharfs and the like.
In the prior art, reference may be made to a chinese invention patent with publication number CN105174038A, which discloses a novel electric hoist lifting hook, comprising an electric hoist lifting hook housing, a pulley arranged inside the electric hoist lifting hook housing, a movable block mounted at the lower end of the electric hoist lifting hook housing, and a lifting hook arranged at the lower end of the movable block; the pulley is connected with a steel wire rope, and the lifting hook is provided with a movable baffle; the movable baffle is provided with a movable shaft, and a return spring is arranged between the movable baffle and the lifting hook. Because the lifting hook is connected with the lifting hook shell through the movable block, the lifting hook can be rotated at will.
However, before hoisting the goods, the lifting ring fixed on the goods needs to be sleeved on the lifting hook, and the lifting hook is integrally formed, so that if the lifting ring is close to the inlet end of the lifting hook with the contact section of the lifting hook, the phenomenon that the lifting ring slips and is separated from the lifting hook can occur in the hoisting process, and the goods fall off to cause danger.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a novel electric hoist lifting hook, which is provided with a driving mechanism to drive the lifting hook to extend, so that the possibility of separating the lifting ring from the lifting hook is reduced.
In order to achieve the purpose, the invention provides the following technical scheme:
a novel electric hoist lifting hook comprises a base plate, two vertical plates vertically fixed at the bottom of the base plate, a rotating shaft rotatably installed on the opposite inner sides of the two vertical plates, two connecting strips fixed on the peripheral sides of the rotating shaft, a first rotating arm fixed at the bottoms of the two connecting strips, a second rotating arm hinged with one end of the first rotating arm, which is far away from the rotating shaft, and a hook claw hinged with one end of the second rotating arm, which is far away from the first rotating arm, wherein a first connecting shaft penetrates through one end of the first rotating arm, which is far away from the connecting strips, and a second connecting shaft penetrates through one end of the hook claw, which is close to the first rotating arm; the second rotating arm comprises two connecting plates which are oppositely arranged, one end of each connecting plate, which is close to the first rotating arm, is rotatably connected with the first connecting shaft, and one end of each connecting plate, which is close to the hook claw, is rotatably connected with the second connecting shaft; a first driving mechanism for driving the second rotating arm to rotate is arranged between the base plate and the connecting strip; a second driving mechanism for driving the first rotating arm to rotate is arranged between the base plate and the vertical plate; and a third driving mechanism for driving the hook claw to rotate is arranged on the opposite inner sides of the two connecting plates.
By adopting the technical scheme, after the lifting hook moves downwards to the designated position, the second driving mechanism drives the first rotating arm to rotate towards the side far away from the base plate, the first driving mechanism drives the second rotating arm to rotate towards the side far away from the goods, and the third driving mechanism drives the hook claw to rotate towards the side far away from the first rotating arm, so that the lifting hook is in an extending state; after the lifting hook is connected with the lifting ring fixed on the goods, the second rotating arm and the third rotating arm respectively rotate to one side close to the first rotating arm, so that the lifting ring slides downwards to be in contact with the second rotating arm, and the possibility that the lifting ring is separated from the lifting hook is reduced.
The invention is further configured to: the first driving mechanism comprises a motor arranged at the top of the base plate, a rotating shaft fixed at the output end of the motor, a first driving wheel fixed at the bottom end of the rotating shaft, a first driven wheel rotatably arranged on the peripheral surface of the rotating shaft, a first connecting rod fixed at one side of the first driven wheel, a second connecting rod hinged with one end of the first connecting rod far away from the first driven wheel, and a third connecting rod fixed at one end of the connecting plate close to the base plate; one end of the first connecting rod, which is far away from the second connecting rod, is hinged with the rotating shaft; one end of the second connecting rod, which is far away from the first connecting rod, is hinged with one end of the third connecting rod, which is far away from the connecting plate; the first driving wheel is meshed with the first driven wheel.
Through adopting above-mentioned technical scheme, the motor starts the back, and the motor drives first action wheel through the pivot and rotates, and first action wheel drives first from the driving wheel rotation, and first from the driving wheel drives first connecting rod upwards to rotate, and first connecting rod upwards carries and draws the second connecting rod, and the second connecting rod upwards carries and draws the third connecting rod, and the third connecting rod drives the second rotor arm and rotates to keeping away from base plate one side, and when the lifting hook of being convenient for was carried the goods and is drawn, extended through first rotor arm of motor drive and second rotor arm.
The invention is further configured to: the bottom of the base plate is provided with a screw hole, and the second driving mechanism comprises an external threaded pipe in threaded connection with the screw hole, a second driving wheel rotatably installed on the bottom surface of the base plate and a second driven wheel rotatably installed on one side, close to the connecting strip, of the vertical plate; one side of the second driven wheel, which is close to the connecting strip, is fixedly connected with one side of the connecting strip, which is far away from the first driven wheel; the second driving wheel is meshed with the second driven wheel; the external threaded pipe is in telescopic connection with the second driving wheel; first spacing groove has been seted up to the pivot outer peripheral face, external screw thread pipe inner peripheral surface is fixed with first spacing strip, first spacing strip slides along external screw thread pipe axial and sets up in first spacing inslot.
By adopting the technical scheme, in the rotating process of the rotating shaft, the rotating shaft drives the external threaded pipe to rotate through the first limiting strip, the second driving wheel drives the second driven wheel to rotate, and the second driven wheel drives the first rotating arm to rotate through the connecting strip, so that the first rotating arm is driven to rotate through the rotation of the external threaded pipe. The first limiting groove provides a guiding function for the first limiting strip, and the external threaded pipe can axially move along the screw hole due to threaded connection with the screw hole in the rotating process; after the external threaded pipe moves to the first limiting groove and is separated from the first limiting strip, the external threaded pipe stops rotating, at the moment, the first rotating arm stops rotating, and the second rotating arm continues rotating. Through setting up first spacing groove and first spacing strip, be convenient for make the rotation range of second rotor arm be greater than first rotor arm.
The invention is further configured to: the third driving mechanism comprises a first gear fixed on the peripheral surface of the first connecting shaft, a second gear fixed on the peripheral surface of the second connecting shaft, a third connecting shaft rotatably arranged on the opposite inner sides of the two connecting plates and a third gear fixed on the peripheral surface of the third connecting shaft; the third gear is meshed with the first gear and the second gear respectively.
Through adopting above-mentioned technical scheme, the second rotor arm rotates the in-process, and first gear rotates relative third gear to drive third gear rotation through first gear, and the third gear drives second gear rotation, and the second gear drives and colludes the claw and rotate to keeping away from base plate one side, be convenient for drive through the rotation of second rotor arm and collude the claw rotation.
The invention is further configured to: a fixing mechanism for fixing the hook claw is arranged between the first rotating arm and the hook claw, and the fixing mechanism comprises a fixing shaft rotatably arranged on one side of the first rotating arm and a fixing circular tube rotatably arranged on one side, close to the fixing shaft, of the hook claw; the fixed shaft is arranged in the fixed circular tube in a sliding manner along the axial direction of the fixed circular tube; the inner peripheral surface of the fixed circular tube is provided with a first strip-shaped groove, and an insertion block is arranged in the first strip-shaped groove in a sliding manner along the radial direction of the fixed circular tube; one end of the peripheral surface of the fixed shaft, which is far away from the first connecting sheet, is provided with a slot for being inserted with the inserting block; and a brake assembly for preventing the insert block from moving to one side close to the fixed shaft is arranged in the fixed circular tube.
By adopting the technical scheme, after the inner side of the fixed axial fixed circular tube moves, the fixed shaft is fixed in the fixed circular tube by inserting the insertion block and the insertion slot, so that the fixed connection between the hook claw and the first rotating arm is realized.
The invention is further configured to: one side of the insert block, which is far away from the fixed shaft, is fixed with a first spring, and one side of the first spring, which is far away from the insert block, is fixedly connected with one side of the first bar-shaped groove, which is far away from the fixed shaft.
By adopting the technical scheme, when the plug connector is plugged with the jack, the first spring is in a compressed state and applies elastic force to one side close to the fixed shaft to the plug block; when the plug connector is separated from the jack, the first spring pushes the plug block to move towards one side close to the fixed shaft, so that the plug block is driven by the first spring to be plugged with the slot.
The invention is further configured to: the brake assembly comprises a second spring fixed on the inner bottom surface of the fixed circular tube, a first pressing plate fixed at the top end of the second spring, a plug connector fixed at the top of the first pressing plate and a jack arranged at the bottom of the plug block and used for being plugged with the plug connector; the fixed pipe inner peripheral face is provided with two second bar grooves which are arranged oppositely, and the first pressing plate slides along the fixed pipe axial direction and is arranged in the two second bar grooves.
By adopting the technical scheme, when the lifting hook starts to be folded, the first rotating arm rotates to the side close to the goods, the second rotating arm rotates to the side close to the base plate, and the hook claw rotates to the side close to the first rotating arm; the fixed shaft moves towards the inner side of the fixed circular tube, the bottom end of the fixed shaft downwards supports and presses the first pressing plate, the first pressing plate drives the plug connectors to move downwards, the plug connectors are separated from the jacks, the plug blocks move towards one side close to the fixed shaft, and the plug blocks are convenient to plug into the slots through the movement of the fixed shaft.
The invention is further configured to: fixing pieces are fixed on the opposite inner sides of the two vertical plates, counter bores are formed in the tops of the fixing pieces, first mounting grooves are formed in the opposite inner sides of the counter bores respectively, and second pressing plates are arranged in the two first mounting grooves in a sliding mode in the vertical direction respectively; a third spring is fixed at the bottom of the second pressure plate and is fixedly connected with the inner bottom surface of the counter bore; second mounting grooves are formed in the opposite inner sides of the counter bores respectively; a baffle is arranged in each second mounting groove in a sliding manner along the length direction of the fixing piece; two fourth springs are respectively fixed on the opposite outer sides of the two baffle plates, and one end, far away from the baffle plate, of each fourth spring is fixedly connected with one side, far away from the first connecting rod, of the second mounting groove; two limiting holes are formed in the bottom surface of each baffle, and four limiting shafts which are respectively connected with the limiting holes in an inserting mode are fixed at the top of the second pressing plate.
By adopting the technical scheme, the first connecting rod moves to the side far away from the base plate and is moved into the counter bore, the first connecting rod downwards supports against the second pressing plate, the second pressing plate drives the limiting shaft to move downwards, and the limiting shaft is separated from the limiting hole; after the baffle loses the limiting displacement of spacing axle, the baffle moves to one side of being close to first connecting rod under the elasticity effect of fourth spring, and two relative baffles fold the back and are located first connecting rod top to prevent first connecting rod to leave the heavy groove.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. the lifting ring slides downwards to be in contact with the second rotating arm by arranging the first rotating arm, the second rotating arm and the hook claw which are movably connected and respectively rotating towards one side close to the first rotating arm through the second rotating arm and the third rotating arm, so that the possibility that the lifting ring is separated from the lifting hook is reduced;
2. by arranging the fixing mechanism, the fixing shaft is conveniently fixed in the fixed circular tube through the inserting block, so that the hook claw is fixedly connected with the first rotating arm;
3. through the arrangement of the braking mechanism, when the first connecting rod moves into the counter bore, the two opposite baffles are folded to prevent the first connecting rod from leaving the counter bore.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention highlighting a third drive mechanism;
FIG. 3 is a cross-sectional view highlighting a second drive mechanism of the present invention;
FIG. 4 is a cross-sectional view of a highlighted counterbore of the present invention;
FIG. 5 is a cross-sectional view of the highlighting fixture of the present invention;
fig. 6 is an enlarged schematic view of a point a in fig. 5.
In the figure: 1. a base plate; 11. a vertical plate; 12. a rotating shaft; 13. a connecting strip; 14. a plug-in unit; 15. a first platen; 2. a first rotation arm; 21. a first connecting shaft; 3. a second rotating arm; 31. a connecting plate; 4. hooking claws; 41. a second connecting shaft; 5. a first drive mechanism; 51. a motor; 52. a jack; 53. a first drive wheel; 54. a first driven wheel; 55. a first link; 56. a second link; 57. a third link; 58. a rotating shaft; 6. a second drive mechanism; 61. an externally threaded tube; 62. a second drive wheel; 63. a second driven wheel; 64. a first limit strip; 65. a first limit groove; 7. a third drive mechanism; 71. a first gear; 72. a second gear; 73. a third connecting shaft; 74. a third gear; 75. a first square groove; 76. a second square groove; 8. a fixing mechanism; 81. a fixed shaft; 82. fixing a circular tube; 83. a first connecting piece; 84. a second connecting sheet; 85. a first bar-shaped groove; 86. inserting a block; 87. a second spring; 88. a first spring; 89. a second strip groove; 9. a counter bore; 91. a fixing member; 92. a first mounting groove; 93. a second platen; 94. a third spring; 95. a second mounting groove; 96. a baffle plate; 97. a fourth spring; 98. a limiting hole; 99. and a limiting shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b): the utility model provides a novel electric block lifting hook, as shown in fig. 1, including base plate 1, two risers 11 of vertical being fixed in base plate 1 bottom, rotate and install in the axis of rotation 12 of two riser 11 relative inboards, be fixed in two connecting strips 13 of axis of rotation 12 week sides, be fixed in first swivel arm 2 of two connecting strips 13 bottoms, keep away from axis of rotation 12 one end articulated second swivel arm 3 and keep away from first swivel arm 2 one end articulated claw 4 with first swivel arm 2. A first connecting shaft 21 is arranged at one end of the first rotating arm 2 far away from the connecting strip 13, and a second connecting shaft 41 is arranged at one end of the hook claw 4 close to the first rotating arm 2. The second rotating arm 3 includes two connecting plates 31 disposed oppositely, one end of each connecting plate 31 near the first rotating arm 2 is rotatably connected to the first connecting shaft 21, and one end of each connecting plate 31 near the hook 4 is rotatably connected to the second connecting shaft 41. A first driving mechanism 5 for driving the second rotating arm 3 to rotate is arranged between the base plate 1 and the connecting strip 13; a second driving mechanism 6 for driving the first rotating arm 2 to rotate is arranged between the base plate 1 and the vertical plate 11; the opposite inner sides of the two connecting plates 31 are provided with third driving mechanisms 7 for driving the hook claws 4 to rotate. After the lifting hook moves downwards to a specified position, the first driving mechanism 5 drives the second rotating arm 3 to rotate towards one side far away from the goods, the second driving mechanism 6 drives the first rotating arm 2 to rotate towards one side far away from the base plate 1, and the third driving mechanism 7 drives the hook claw 4 to rotate towards one side far away from the first rotating arm 2, so that the lifting hook is in an extending state, and the goods can be conveniently lifted.
The first driving mechanism 5 includes a motor 51 mounted on the top of the base plate 1, a rotating shaft 58 fixed to the output end of the motor 51, a first driving wheel 53 fixed to the bottom end of the rotating shaft 58, a first driven wheel 54 rotatably mounted on the outer peripheral surface of the rotating shaft 12, a first connecting rod 55 fixed to one side of the first driven wheel 54, a second connecting rod 56 hinged to one end of the first connecting rod 55 far away from the first driven wheel 54, and a third connecting rod 57 fixed to one end of the connecting plate 31 near the base plate 1. The end of the first link 55 away from the second link 56 is hinged to the rotating shaft 12. The end of the second link 56 away from the first link 55 is hinged to the end of the third link 57 away from the connecting plate 31. The first driving pulley 53 is engaged with the first driven pulley 54. Screw holes are formed in the bottom of the base plate 1, and the rotating shaft 58 penetrates through the screw holes. After the motor 51 is started, the motor 51 drives the first driving wheel 53 to rotate through the rotating shaft 58, the first driving wheel 53 drives the first driven wheel 54 to rotate, the first driven wheel 54 drives the first connecting rod 55 to rotate upwards, the first connecting rod 55 pulls the second connecting rod 56 upwards, the second connecting rod 56 pulls the third connecting rod 57 upwards, and the third connecting rod 57 drives the second rotating arm 3 to rotate towards the side far away from the base plate 1.
The second driving mechanism 6 comprises an external thread pipe 61 in threaded connection with the screw hole, a second driving wheel 62 rotatably arranged on the bottom surface of the base plate 1 and a second driven wheel 63 rotatably arranged on one side of the vertical plate 11 close to the connecting strip 13; the second driven wheel 63 is fixedly connected with the side of the connecting strip 13 far away from the first driven wheel 54 on the side close to the connecting strip 13. The secondary driving pulley 62 is engaged with the secondary driven pulley 63. The external thread pipe 61 is telescopically connected with the second driving wheel 62; the bottom surface of the external thread pipe 61 is fixed with a telescopic shaft, and the external thread pipe 61 is sleeved on the peripheral surface of the telescopic shaft in a sliding manner along the axial direction of the telescopic shaft. The outer peripheral surface of the rotating shaft 58 is provided with a first limiting groove 65, the inner peripheral surface of the external threaded pipe 61 is fixed with a first limiting strip 64, and the first limiting strip 64 is arranged in the first limiting groove 65 along the axial direction of the external threaded pipe 61 in a sliding manner. The outer screwed pipe 61 inner peripheral surface is fixed with the spacing strip of second, and the second spacing groove has been seted up to the telescopic shaft outer peripheral face, and the spacing strip of second slides along the telescopic shaft axial and sets up in the second spacing inslot. During the rotation of the rotating shaft 58, the rotating shaft 58 drives the external threaded pipe 61 to rotate through the first limiting strip 64, the external threaded pipe 61 drives the second driving wheel 62 to rotate, the second driving wheel 62 drives the second driven wheel 63 to rotate, and the second driven wheel 63 drives the first rotating arm 2 to rotate through the connecting strip 13.
The third driving mechanism 7 includes a first gear 71 fixed to the outer peripheral surface of the first connecting shaft 21, a second gear 72 fixed to the outer peripheral surface of the second connecting shaft 41, a third connecting shaft 73 rotatably mounted on the opposite inner sides of the two connecting plates 31, and a third gear 74 fixed to the outer peripheral surface of the third connecting shaft 73; the third gear 74 meshes with the first gear 71 and the second gear 72, respectively. A first square groove 75 is formed on one side of the first rotating arm 2 close to the hook claw 4, and the first gear 71 is rotatably mounted in the first square groove 75. The hook claw 4 is provided with a second square groove 76 at one side close to the first driving arm, and the second gear 72 is rotatably installed in the second square groove 76. In the rotating process of the second rotating arm 3, the first gear 71 rotates relative to the third gear 74, so that the first gear 71 drives the third gear 74 to rotate, the third gear 74 drives the second gear 72 to rotate, and the second gear 72 drives the hook claw 4 to rotate towards the side far away from the base plate 1.
A fixing mechanism 8 for fixing the hook claw 4 is arranged between the first rotating arm 2 and the hook claw 4, and the fixing mechanism 8 comprises a fixed shaft 81 rotatably arranged on one side of the first rotating arm 2 and a fixed circular tube 82 rotatably arranged on one side of the hook claw 4 close to the fixed shaft 81; the fixed shaft 81 is slidably disposed in the fixed circular tube 82 along the axial direction of the fixed circular tube 82. A first circular protrusion is fixed on one side of the first rotating arm 2 close to the third connecting rod 57, a first connecting piece 83 is fixed on one end of the fixed shaft 81 far away from the hook claw 4, and the first connecting piece 83 is rotatably connected with the first circular protrusion. A second circular protrusion is fixed on one side of the hook claw 4 close to the third connecting rod 57, a second connecting piece 84 is fixed on one end of the second fixing circular tube 82 far away from the first rotating arm 2, and the second connecting piece 84 is rotatably connected with the second circular protrusion. A first strip-shaped groove 85 is formed in the inner peripheral surface of the fixed circular tube 82, and an insertion block 86 is arranged in the first strip-shaped groove 85 in a sliding manner along the radial direction of the fixed circular tube 82; the outer peripheral surface of the fixed shaft 81 is provided with a slot for inserting the insert block 86 at one end away from the first connecting piece 83. A first spring 88 is fixed on one side of the insertion block 86 far away from the fixed shaft 81, and one side of the first spring 88 far away from the insertion block 86 is fixedly connected with one side of the first bar-shaped groove 85 far away from the fixed shaft 81. A pull rod for driving the insert block 86 to move towards the side away from the fixed shaft 81 is fixed on the side of the insert block 86 away from the fixed shaft 81, the pull rod is arranged on the periphery of the fixed circular tube 82 in a penetrating mode, and the first spring 88 is sleeved on the periphery of the pull rod. Two relative second bar grooves 89 that set up are seted up to fixed pipe 82 inner peripheral surface, and two second bar grooves 89 all set up in fixed pipe 82 bottom. The inner bottom surface of the fixed circular tube 82 is fixed with a second spring 87, the top end of the second spring 87 is fixed with a first pressing plate 15, and the first pressing plate 15 is arranged in the two second strip-shaped grooves 89 in a sliding manner along the axial direction of the fixed circular tube 82. The top of the second strip-shaped groove 89 is communicated with the bottom of the first strip-shaped groove 85. The top of the first pressure plate 15 is fixed with a plug connector 14; the bottom of the plug block 86 is opened with a jack 52 for plugging with the plug 14. When the lifting hook starts to be folded, the first rotating arm 2 rotates to one side close to the goods, the second rotating arm 3 rotates to one side close to the base plate 1, and the hook claw 4 rotates to one side close to the first rotating arm 2; the fixing shaft 81 moves towards the inner side of the fixing circular tube 82, the bottom end of the fixing shaft 81 downwards abuts against the first pressing plate 15, the first pressing plate 15 drives the plug connector 14 to move downwards, the plug connector 14 is separated from the jack 52, the plug block 86 moves towards one side close to the fixing shaft 81 under the elastic action of the second spring 87, and the fixing shaft 81 is fixed in the fixing circular tube 82 after the plug block 86 is plugged with the slot.
Fixing pieces 91 are fixed to opposite inner sides of the two vertical plates 11. The top of the fixing member 91 is provided with a counter bore 9. First mounting grooves 92 are formed in the opposite inner sides of the counter bores 9 respectively, and second pressing plates 93 are arranged in the two first mounting grooves 92 in a sliding mode along the vertical direction. And a third spring 94 is fixed at the bottom of the second pressure plate 93, and the third spring 94 is fixedly connected with the inner bottom surface of the counter bore 9. The counter bore 9 is provided with a second mounting groove 95 on the opposite inner side, and the bottom of the second mounting groove 95 is communicated with the top of the first mounting groove 92. A baffle 96 is slidably arranged in each second mounting groove 95 along the length direction of the fixing piece 91; two fourth springs 97 are fixed on the opposite outer sides of the two baffle plates 96 respectively, and one end of each fourth spring 97, which is far away from the baffle plate 96, is fixedly connected with one side, which is far away from the first connecting rod 55, of the second mounting groove 95. Two limiting holes 98 are formed in the bottom surface of each baffle 96, and four limiting shafts 99 which are respectively inserted into the limiting holes 98 are fixed at the top of the second pressing plate 93; the four limit shafts 99 are disposed on two sides of the first link 55. The first connecting rod 55 moves to the side far away from the base plate 1 and is moved into the counter bore 9, the first connecting rod 55 downwards abuts against the second pressing plate 93, the second pressing plate 93 drives the limiting shaft 99 to move downwards, and the limiting shaft 99 is separated from the limiting hole 98; after the baffle 96 loses the limiting function of the limiting shaft 99, the baffle 96 moves towards one side close to the first connecting rod 55 under the elastic force of the fourth spring 97, and the two opposite baffles 96 are folded and then positioned above the first connecting rod 55, so that the first connecting rod 55 is prevented from leaving the sink groove.
The working principle of the embodiment is as follows:
after the motor 51 is started, the motor 51 drives the first driving wheel 53 to rotate through the rotating shaft 58, the first driving wheel 53 drives the first driven wheel 54 to rotate, the first driven wheel 54 drives the first connecting rod 55 to rotate upwards, the first connecting rod 55 pulls the second connecting rod 56 upwards, the second connecting rod 56 pulls the third connecting rod 57 upwards, and the third connecting rod 57 drives the second rotating arm 3 to rotate towards the side far away from the base plate 1. During the rotation of the rotating shaft 58, the rotating shaft 58 drives the external threaded pipe 61 to rotate through the first limiting strip 64, the external threaded pipe 61 drives the second driving wheel 62 to rotate, the second driving wheel 62 drives the second driven wheel 63 to rotate, and the second driven wheel 63 drives the first rotating arm 2 to rotate through the connecting strip 13, so that the hook is in an extended state, and the goods can be conveniently lifted.
When the lifting hook starts to be folded, the first rotating arm 2 rotates to one side close to the goods, the second rotating arm 3 rotates to one side close to the base plate 1, and the hook claw 4 rotates to one side close to the first rotating arm 2; the fixing shaft 81 moves towards the inner side of the fixing circular tube 82, the bottom end of the fixing shaft 81 downwards abuts against the first pressing plate 15, the first pressing plate 15 drives the plug connector 14 to move downwards, the plug connector 14 is separated from the jack 52, the plug block 86 moves towards one side close to the fixing shaft 81 under the elastic action of the second spring 87, and the fixing shaft 81 is fixed in the fixing circular tube 82 after the plug block 86 is plugged with the slot.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The utility model provides a novel electric block lifting hook, includes base plate (1), vertical being fixed in two riser (11), the rotation of base plate (1) bottom are installed in two axis of rotation (12) of the relative inboard of riser (11), be fixed in two connecting strip (13) of axis of rotation (12) week side, be fixed in two first rotor arm (2) of connecting strip (13) bottom, with first rotor arm (2) keep away from axis of rotation (12) one end articulated second rotor arm (3) and with first rotor arm (2) one end articulated claw (4) that collude is kept away from in second rotor arm (3), its characterized in that: a first connecting shaft (21) penetrates through one end, far away from the connecting strip (13), of the first rotating arm (2), and a second connecting shaft (41) penetrates through one end, close to the first rotating arm (2), of the hook claw (4); the second rotating arm (3) comprises two connecting plates (31) which are arranged oppositely, one end of each connecting plate (31), which is close to the first rotating arm (2), is rotatably connected with the first connecting shaft (21), and one end of each connecting plate (31), which is close to the hook claw (4), is rotatably connected with the second connecting shaft (41); a first driving mechanism (5) for driving the second rotating arm (3) to rotate is arranged between the base plate (1) and the connecting strip (13); a second driving mechanism (6) for driving the first rotating arm (2) to rotate is arranged between the base plate (1) and the vertical plate (11); and a third driving mechanism (7) for driving the hook claw (4) to rotate is arranged on the opposite inner sides of the two connecting plates (31).
2. The novel electric hoist lifting hook according to claim 1, characterized in that: the first driving mechanism (5) comprises a motor (51) arranged at the top of the base plate (1), a rotating shaft (58) fixed at the output end of the motor (51), a first driving wheel (53) fixed at the bottom end of the rotating shaft (58), a first driven wheel (54) rotatably arranged on the outer peripheral surface of the rotating shaft (12), a first connecting rod (55) fixed on one side of the first driven wheel (54), a second connecting rod (56) hinged with one end, far away from the first driven wheel (54), of the first connecting rod (55), and a third connecting rod (57) fixed at one end, close to the base plate (1), of the connecting plate (31); one end of the second connecting rod (56) far away from the first connecting rod (55) is hinged with one end of the third connecting rod (57) far away from the connecting plate (31); the first driving wheel (53) is meshed with the first driven wheel (54).
3. The novel electric hoist lifting hook according to claim 2, characterized in that: the bottom of the base plate (1) is provided with a screw hole, and the second driving mechanism (6) comprises an external threaded pipe (61) in threaded connection with the screw hole, a second driving wheel (62) rotatably mounted on the bottom surface of the base plate (1), and a second driven wheel (63) rotatably mounted on one side, close to the connecting strip (13), of the vertical plate (11); one side of the second driven wheel (63) close to the connecting strip (13) is fixedly connected with one side of the connecting strip (13) far away from the first driven wheel (54); the second driving wheel (62) is meshed with the second driven wheel (63); the outer peripheral surface of the rotating shaft (58) is provided with a first limiting groove (65), the inner peripheral surface of the outer threaded pipe (61) is fixed with a first limiting strip (64), and the first limiting strip (64) is axially arranged in the first limiting groove (65) in a sliding mode along the outer threaded pipe (61).
4. The novel electric hoist lifting hook according to claim 1, characterized in that: the third driving mechanism (7) comprises a first gear (71) fixed on the outer peripheral surface of the first connecting shaft (21), a second gear (72) fixed on the outer peripheral surface of the second connecting shaft (41), a third connecting shaft (73) rotatably arranged on the opposite inner sides of the two connecting plates (31) and a third gear (74) fixed on the outer peripheral surface of the third connecting shaft (73); the third gear (74) is meshed with the first gear (71) and the second gear (72), respectively.
5. The novel electric hoist lifting hook according to claim 1, characterized in that: a fixing mechanism (8) for fixing the hook claw (4) is arranged between the first rotating arm (2) and the hook claw (4), and the fixing mechanism (8) comprises a fixed shaft (81) rotatably mounted on one side of the first rotating arm (2) and a fixed circular tube (82) rotatably mounted on one side, close to the fixed shaft (81), of the hook claw (4); the fixed shaft (81) is arranged in the fixed circular tube (82) in a sliding manner along the axial direction of the fixed circular tube (82); a first strip-shaped groove (85) is formed in the inner peripheral surface of the fixed circular tube (82), and an insertion block (86) is arranged in the first strip-shaped groove (85) in a sliding manner along the radial direction of the fixed circular tube (82); one end of the peripheral surface of the fixed shaft (81), which is far away from the first rotating arm (2), is provided with a slot for being inserted into the insertion block (86); and a brake component for preventing the insert block (86) from moving towards one side close to the fixed shaft (81) is arranged in the fixed circular tube (82).
6. The novel electric hoist lifting hook according to claim 5, characterized in that: one side, far away from the fixed shaft (81), of the inserting block (86) is fixed with a first spring (88), and one end, far away from the inserting block (86), of the first spring (88) is fixedly connected with one side, far away from the fixed shaft (81), of the first strip-shaped groove (85).
7. The novel electric hoist lifting hook according to claim 5, characterized in that: the brake assembly comprises a second spring (87) fixed on the inner bottom surface of the fixed circular tube (82), a first pressing plate (15) fixed at the top end of the second spring (87), a plug connector (14) fixed at the top of the first pressing plate (15) and a jack (52) arranged at the bottom of the plug block (86) and used for being plugged with the plug connector (14); two second bar grooves (89) have been seted up to fixed pipe (82) inner peripheral surface, first clamp plate (15) slide along fixed pipe (82) axial and set up in two second bar grooves (89).
8. The novel electric hoist lifting hook according to claim 1, characterized in that: fixing pieces (91) are fixed on the opposite inner sides of the two vertical plates (11), counter bores (9) are formed in the tops of the fixing pieces (91), first mounting grooves (92) are formed in the opposite inner sides of the counter bores (9), and second pressing plates (93) are arranged in the two first mounting grooves (92) in a sliding mode in the vertical direction; a third spring (94) is fixed at the bottom of the second pressure plate (93), and the third spring (94) is fixedly connected with the inner bottom surface of the counter bore (9); second mounting grooves (95) are respectively formed in the opposite inner sides of the counter bores (9); a baffle (96) is arranged in each second mounting groove (95) in a sliding manner along the length direction of the fixing piece (91); two fourth springs (97) are respectively fixed on the opposite outer sides of the two baffle plates (96), and one end, far away from the baffle plates (96), of each fourth spring (97) is fixedly connected with one side, far away from the first connecting rod (55), of the second mounting groove (95); two limiting holes (98) are formed in the bottom surface of each baffle (96), and four limiting shafts (99) which are respectively connected with the limiting holes (98) in an inserting mode are fixed to the top of the second pressing plate (93).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911121068.4A CN110921495B (en) | 2019-11-15 | 2019-11-15 | Novel electric hoist lifting hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911121068.4A CN110921495B (en) | 2019-11-15 | 2019-11-15 | Novel electric hoist lifting hook |
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| CN110921495A true CN110921495A (en) | 2020-03-27 |
| CN110921495B CN110921495B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826658A (en) * | 1992-05-01 | 1996-01-30 | Ebara Kiko Kk | Lanyard removal mechanism for hook |
| JP2013129463A (en) * | 2011-12-20 | 2013-07-04 | Ebara Kiko Kk | Hook structure with automatic rope removing mechanism |
| CN103010938B (en) * | 2012-11-13 | 2014-10-29 | 大连钛鼎重工有限公司 | Automatic hanging hook |
| CN203938380U (en) * | 2014-07-16 | 2014-11-12 | 三峡大学 | A kind of automatically get that thing unloads thing can Weight measuring type anticreep fishhook |
| CN105598992A (en) * | 2016-03-17 | 2016-05-25 | 清华大学 | Multi-axis wheel train robot finger device for achieving parallel opening and closing and self-adaptive enveloping |
-
2019
- 2019-11-15 CN CN201911121068.4A patent/CN110921495B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826658A (en) * | 1992-05-01 | 1996-01-30 | Ebara Kiko Kk | Lanyard removal mechanism for hook |
| JP2013129463A (en) * | 2011-12-20 | 2013-07-04 | Ebara Kiko Kk | Hook structure with automatic rope removing mechanism |
| CN103010938B (en) * | 2012-11-13 | 2014-10-29 | 大连钛鼎重工有限公司 | Automatic hanging hook |
| CN203938380U (en) * | 2014-07-16 | 2014-11-12 | 三峡大学 | A kind of automatically get that thing unloads thing can Weight measuring type anticreep fishhook |
| CN105598992A (en) * | 2016-03-17 | 2016-05-25 | 清华大学 | Multi-axis wheel train robot finger device for achieving parallel opening and closing and self-adaptive enveloping |
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| Publication number | Publication date |
|---|---|
| CN110921495B (en) | 2020-11-24 |
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