CN220618137U - Crane hook - Google Patents

Abstract

The utility model discloses a crane hook, and relates to the technical field of hoisting machinery. The lifting hook comprises a lifting hook main body, two base plates and an adjusting plate, wherein the lifting hook main body is arranged below the two base plates, a spring is fixed on the inner wall of the lifting hook main body, one end of the spring, which is far away from the lifting hook main body, is fixedly provided with an inclined anti-falling clamping plate, two anti-falling protection rods transversely penetrate through the lifting hook main body outside the spring and the anti-falling clamping plate, the outer wall of the lifting hook main body is rotationally connected with a screw rod, the periphery of a screw thread section of the screw rod is connected with the adjusting plate in a rotating mode, and limiting blocks are sleeved on the peripheries of the two anti-falling protection rods in the inner cavity of the lifting hook main body. According to the utility model, the lifting hook main body, the anti-falling clamping plate, the anti-falling hook protection rod, the screw rod, the spring and the limiting block are arranged, so that the defect of insufficient protectiveness of the traditional spring sheet structure is solved, and the double anti-falling hook protection function is lacked; and after the goods are transported to the appointed place by the lifting hook, the traction rope on the lifting hook cannot be quickly taken out by manpower.

Description

Crane hook

Technical Field

The utility model belongs to the technical field of hoisting machinery, and particularly relates to a crane hook.

Background

A crane refers to a multi-action lifting machine that vertically lifts and horizontally conveys weights within a certain range. Also known as crown block, aerial crane and crane. The crane lifts and conveys the whole body. The lifting equipment has the working characteristics that the lifting equipment does intermittent motion, namely corresponding mechanisms of taking, moving, unloading and the like in one working cycle alternately work, and the crane is mostly assisted by a matched steel wire rope. The lifting hook of the crane is more indispensable, the lifting hook is the only structure connected with the weight, all stresses are generated from the position, all the cranes need the lifting hook to lift the weight, but the corresponding lifting hook structure still has the following defects in actual use:

1. the crane hook removes the stable lifting goods, more importantly, the heavy objects cannot be dropped in the way of lifting and transporting the heavy objects, then the unhooking prevention structure is particularly important, at present, the elastic sheet capable of hinging and rotating angles is mostly adopted for unhooking prevention limitation in the market, when the traction rope is hooked, the elastic sheet is rotationally pressed down, after the traction rope is hooked, the traction rope is arranged below the elastic sheet, the traction rope part of the heavy objects can be limited under the action of a spring and other structures and cannot be separated, but certain problems exist, the hinged rotating structure is matched with elastic force limitation, once the hinged part is damaged or the spring is damaged, and the whole unhooking prevention part is easy to lose effect, which is extremely dangerous behavior in high-altitude operation, so double or even multiple unhooking prevention protection is required;

2. secondly, because most of the spring-action elastic sheet type unhooking prevention structures on the market are simple when hanging the traction rope, the traction rope is only required to be arranged above the elastic sheet, the lifting hook is slightly lifted by the crane, the traction rope can downwards press the elastic sheet into the lifting hook below the elastic sheet, but after the goods heavy object is conveyed to a designated place, the operation of taking out the traction rope is completed manually, the labor intensity of manpower is too high, and the traction rope is difficult to be taken out by downwards pressing the elastic sheet by means of manpower.

Disclosure of Invention

The utility model aims to provide a crane hook, which solves the problem that the traditional spring plate structure is insufficient in protectiveness by arranging a hook main body, an anti-falling clamping plate, an anti-falling hook protection rod, a screw, a spring and a limiting block, and once the crane hook is damaged, unhooking is very easy to cause, and the crane hook lacks a double anti-falling hook protection function; and after the goods are transported to the appointed place by the lifting hook, the traction rope on the lifting hook cannot be quickly taken out by manpower.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a crane hook which comprises a hook main body, two base plates and an adjusting plate, wherein the hook main body is arranged below the two base plates and is of a ring-shaped structure with a notch; the lifting hook comprises a lifting hook main body, a lifting hook and a lifting hook, wherein a spring is fixed on the inner wall of the lifting hook main body, one end of the spring, which is far away from the lifting hook main body, is fixedly provided with an inclined anti-falling clamping plate, two anti-falling hook protection rods transversely penetrate through the lifting hook main body outside the spring and the anti-falling clamping plate, a screw is rotationally connected to the outer wall of the lifting hook main body, an adjusting plate is rotationally connected to the periphery of a screw thread section of the screw, one end of the two anti-falling hook protection rods, which is far away from the anti-falling clamping plate, is jointly fixed on one surface, close to the lifting hook main body, of the adjusting plate, and limiting blocks are jointly sleeved on the peripheries of the two anti-falling hook protection rods, which are positioned in an inner cavity of the lifting hook main body;

the lifting hook main body is matched with a spring connected with the inside of the lifting hook main body and an anti-falling clamping plate at the end part of the spring, namely, the traditional lifting hook anti-falling structure is similar to a spring sheet type anti-falling structure commonly used in the market, an anti-falling protection rod is additionally arranged on the basis of the anti-falling clamping plate connected with the spring, the adjusting plate is horizontally displaced by utilizing the rotation of a screw rod, the horizontal displacement of the anti-falling protection rod can be controlled, after a traction rope of goods presses down the anti-falling clamping plate to enter the lifting hook main body, the anti-falling protection rod transversely penetrates through the whole lifting hook main body, the traction rope is positioned in the lifting hook main body below the anti-falling protection rod, and the anti-falling protection function can be additionally arranged by blocking the traction rope again;

secondly, when taking out the haulage rope, reverse the screw rod, make the anticreep hook protection pole outwards break away from, make the stopper be close to the anticreep cardboard gradually, until even take down with the anticreep cardboard, spill sufficient space between messenger's anticreep cardboard lower extreme and the lifting hook main part and supply the haulage rope to pass through, conveniently take out the haulage rope, and need not to use the hard anticreep cardboard of breaking off with fingers and thumb of manpower, reduce intensity of labour, conveniently take out the haulage rope fast.

Further, a suspension piece is fixed at the higher end of the lifting hook main body, the shorter end of the lifting hook main body is set to be a lifting rope end, and the distance between the lifting rope end and the suspension piece is the gap of the lifting hook main body; the suspension piece is vertically upwards, so that the suspension is convenient to use, the rope ends are all positions for suspending the cargo hauling rope by the hook main body, and the hauling rope gradually enters the hook main body from the positions of the rope ends to suspend.

Further, the suspension piece is rotatably connected to the bottom position between the opposite surfaces of the two substrates, the middle positions of the opposite surfaces of the two substrates are rotatably connected with a wire wheel, and the diameter of the wire wheel is larger than the maximum width of the substrates;

the wire wheel is used for connecting the steel wire rope and the main body part of the crane.

Further, the side surface and the bottom surface of the higher end of the lifting hook main body are provided with notches in a penetrating way, the pin shafts are rotationally connected to the notches, the higher end of the anti-falling clamping plate is rotationally connected with the pin shafts, and the lower end of the anti-falling clamping plate is abutted to the inner wall of the lifting hook main body below the lifting rope end;

the notch and the pin shaft in the notch are convenient to use for connecting the anti-falling clamping plate, so that the anti-falling clamping plate rotates by taking the pin shaft as the center, no external force acts on, the bottom end of the anti-falling clamping plate is firmly abutted on the inner wall of the lifting hook main body under the elastic force action of the spring, the notch of the lifting hook main body is blocked, and the anti-falling hook protection is realized.

Further, the side surface of the periphery of the screw at the joint of the screw and the lifting hook main body is a smooth part, and a handle is fixed at one end of the screw far away from the lifting hook main body; the smooth part is arranged to ensure that the screw rod can not unscrew from the lifting hook main body, and the screw rod can be rapidly operated in a positive and negative rotation manner through the handle.

Further, two through holes are formed in the limiting block, the limiting block penetrates through the two unhooking protection rods through the through holes, bolts are screwed at two ends of the limiting block, and the ends of the bolts are screwed into the through holes and are abutted with the unhooking protection rods in the through holes;

the limiting block is sleeved outside the two anti-unhooking protection rods by the aid of the two through holes, the limiting block is inserted when the end part of the anti-unhooking protection rod is not contacted with the lifting rope end and is positioned in the lifting hook main body, then the anti-unhooking protection rod penetrates through the lifting rope end, and the limiting block and the anti-unhooking protection rod are relatively locked and fixed by screwing in the bolt, so that anti-unhooking protection is completed.

Further, the limiting block is located above the lower end of the anti-falling clamping plate.

The utility model has the following beneficial effects:

1. according to the utility model, the lifting hook main body, the anti-unhooking clamping plate, the anti-unhooking protection rod, the screw rod and the spring are arranged, so that the problems that the traditional spring plate structure is insufficient in protectiveness, unhooking is easily caused once the traditional spring plate structure is damaged, and a double anti-unhooking protection function is lacked are solved; the bottom end of the anti-falling clamping plate is firmly abutted on the inner wall of the lifting hook main body under the action of the elasticity of the spring, and the notch of the lifting hook main body is blocked, so that the anti-falling protection is realized; after the pulling rope of goods pushes down the anticreep cardboard and gets into the lifting hook main part inside, utilize the anticreep protection lever transversely to run through whole lifting hook main part, make the pulling rope be located the lifting hook main part of anticreep protection lever below, through locking the pulling rope once more, can add anticreep protection function, realize dual anticreep protection.

2. According to the utility model, the lifting hook main body, the unhook protection rod, the screw rod and the limiting block are arranged, so that the problem that a person cannot quickly take out a traction rope on the lifting hook after the lifting hook is used for transporting goods to a specified place is solved; when taking out the haulage rope, reverse the screw rod, make the anticreep hook protection pole outwards break away from, make the stopper be close to the anticreep cardboard gradually, until even take the anticreep cardboard down, spill sufficient space between messenger's anticreep cardboard lower extreme and the lifting hook main part and supply the haulage rope to pass through, conveniently take out the haulage rope, and need not to use artificial hard to break off the anticreep cardboard off with fingers and thumb, reduce intensity of labour, conveniently take out the haulage rope fast, the manpower consumption is few.

Drawings

FIG. 1 is a perspective view of a crane hook;

FIG. 2 is a block diagram of the hook body;

FIG. 3 is a state diagram of the hook body when the cargo hauling rope is removed;

FIG. 4 is a view showing the hook body in a state where the cargo hauling rope is assembled;

FIG. 5 is a cross-sectional view of the hook body;

fig. 6 is a block diagram of the bit block.

Reference numerals:

1. a hook body; 101. a spring; 102. an anti-falling clamping plate; 103. a screw; 1031. a handle; 104. a suspension member; 105. a sling end; 106. a notch; 1061. a pin shaft; 2. a substrate; 201. a wire wheel; 3. an adjusting plate; 301. an unhooking prevention protection bar; 302. a limiting block; 3021. a bolt; 3022. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-6, the utility model discloses a crane hook, which comprises a hook main body 1, two base plates 2 and an adjusting plate 3, wherein the hook main body 1 is arranged below the two base plates 2, and the hook main body 1 is of a ring-shaped structure with a notch; the inner wall of the lifting hook main body 1 is fixedly provided with a spring 101, one end of the spring 101, which is far away from the lifting hook main body 1, is fixedly provided with an inclined anti-falling clamping plate 102, two anti-falling protection rods 301 transversely penetrate through the lifting hook main body 1 outside the spring 101 and the anti-falling clamping plate 102, the outer wall of the lifting hook main body 1 is rotationally connected with a screw 103, the periphery of a threaded section of the screw 103 is rotationally connected with an adjusting plate 3, one end of the two anti-falling protection rods 301, which is far away from the anti-falling clamping plate 102, is jointly fixed on one surface, close to the lifting hook main body 1, of the adjusting plate 3, and the peripheries of the two anti-falling protection rods 301 in the inner cavity of the lifting hook main body 1 are jointly sleeved with a limiting block 302;

the hook main body 1 is matched with a spring 101 and an anti-falling clamping plate 102 at the end part of the spring 101 which are connected internally, namely, a traditional hook anti-falling structure is adopted, the anti-falling clamping plate 102 is similar to a common spring piece type anti-falling structure in the market, an anti-falling protection rod 301 is additionally arranged on the basis of the anti-falling clamping plate 102 connected through the spring 101, the adjusting plate 3 is horizontally displaced by utilizing the rotation of a screw 103, the horizontal displacement of the anti-falling protection rod 301 can be controlled, after a haulage rope of goods presses down the anti-falling clamping plate 102 to enter the hook main body 1, the anti-falling protection rod 301 transversely penetrates through the whole hook main body 1, so that the haulage rope is positioned in the hook main body 1 below the anti-falling protection rod 301, and the anti-falling protection function can be additionally arranged by re-blocking the haulage rope;

secondly, when taking out the hauling rope, the screw 103 is reversed, so that the unhook protection rod 301 is outwards separated, the limiting block 302 is gradually close to the unhook clamping plate 102 until the unhook clamping plate 102 is pressed down in a connecting way, enough gaps are leaked between the lower end of the unhook clamping plate 102 and the lifting hook main body 1 for the hauling rope to pass through, the hauling rope is conveniently taken out, the labor intensity is reduced, and the hauling rope is conveniently and rapidly taken out without manually hard breaking off the unhook clamping plate 102.

The hanging piece 104 is fixed at the higher end of the lifting hook main body 1, the shorter end of the lifting hook main body 1 is provided with the lifting rope end 105, and the distance between the lifting rope end 105 and the hanging piece 104 is the gap of the lifting hook main body 1; the suspension piece 104 is vertically upwards, so that the suspension is convenient to use, the suspension rope ends 105 are all positions for suspending a cargo traction rope by using the lifting hook main body 1, and the traction rope gradually enters the lifting hook main body 1 from the positions of the suspension rope ends 105 to suspend.

The suspension 104 is rotatably connected to the bottom position between the opposite surfaces of the two substrates 2, the middle positions of the opposite surfaces of the two substrates 2 are rotatably connected with the wire wheel 201 together, and the diameter of the wire wheel 201 is larger than the maximum width of the substrates 2;

the reel 201 is used to connect a wire rope to the main body of the crane.

The side surface and the bottom surface of the higher end of the lifting hook main body 1 are provided with a notch 106 in a penetrating way, the notch 106 is rotationally connected with a pin 1061, the higher end of the anti-falling clamping plate 102 is rotationally connected with the pin 1061, and the lower end of the anti-falling clamping plate 102 is abutted against the inner wall of the lifting hook main body 1 below the lifting rope end 105;

the notch 106 and the pin 1061 in the notch are convenient to be used for connecting the anti-falling clamping plate 102, so that the anti-falling clamping plate 102 rotates by taking the pin 1061 as the center, no external force acts on, the bottom end of the anti-falling clamping plate 102 is firmly abutted on the inner wall of the lifting hook main body 1 under the elastic force of the spring 101, the notch of the lifting hook main body 1 is blocked, and anti-falling protection is realized.

The side surface of the periphery of the screw 103 at the joint of the screw 103 and the lifting hook main body 1 is a smooth part, and a handle 1031 is fixed at one end of the screw 103 far away from the lifting hook main body 1; the provision of the smooth portion ensures that the screw 103 does not unscrew from the hook body 1 and that the screw 103 can be operated in a rapid forward and reverse rotation by means of the handle 1031.

Two through holes 3022 are formed in the limiting block 302, the limiting block 302 penetrates through the two anti-unhooking protection rods 301 through the through holes 3022, bolts 3021 are screwed at two ends of the limiting block 302, and the end parts of the bolts 3021 are screwed into the through holes 3022 and are abutted against the anti-unhooking protection rods 301 in the through holes 3022;

the two through holes 3022 are utilized to enable the limiting block 302 to be sleeved outside the two anti-unhooking protection bars 301, when the end part of the anti-unhooking protection bar 301 is not contacted with the sling end 105 and is positioned in the lifting hook main body 1, the limiting block 302 is inserted, the anti-unhooking protection bar 301 passes through the sling end 105, and the bolt 3021 is screwed in to enable the limiting block 302 and the anti-unhooking protection bar 301 to be relatively locked and fixed, so that anti-unhooking protection is completed.

The limiting block 302 is located above the lower end of the anti-falling clamping plate 102.

The specific working principle of the utility model is as follows: the suspension 104 is rotatably connected to the bottom position between the opposite surfaces of the two base plates 2, so that the hook main body 1 and the base plates 2 are in rotary connection, a wire wheel 201 between the two base plates 2 is used for connecting a steel wire rope and the main body part of the crane, the traction rope gradually enters the hook main body 1 from the position of the lifting rope end 105 to suspend, the traction rope is arranged above the anti-unhook plate 102 on one side of the lifting rope end 105, then the hook main body 1 is slightly lifted, under the action of the tension of the crane, the traction rope is straightened and presses down the anti-unhook plate 102, the anti-unhook plate 102 rotates around a pin 1061, at the moment, the spring 101 deforms and compresses until the traction rope moves into the hook main body 1 below the anti-unhook plate 102, at the moment, a screw 103 rotates, the adjusting plate 3 horizontally displaces, so that the horizontal displacement of the anti-unhook protection rod 301 can be controlled, when the end part of the anti-unhook protection rod 301 does not contact the lifting rope end 105 and is arranged in the hook main body 1, the limiting block 302 is sleeved outside the anti-unhook protection rod 301 by using the two through holes 3022, the anti-unhook protection rod 301 is threaded through the lifting hook end 105, the whole anti-unhook protection rod 3021 is screwed into the hook main body 301, and the anti-unhook protection rod 301 is screwed into the anti-unhook protection rod, and the anti-unhook protection rod is fixed, and the anti-hook protection rod is fastened, and the anti-drop protection rod is fastened, and the whole, and the anti-hook protection rod is screwed; when the hauling rope is taken out, the screw 103 is reversed, the unhook protection rod 301 is separated outwards, the limiting block 302 is gradually close to the unhook clamping plate 102 until the unhook clamping plate 102 is pressed downwards, enough gaps are leaked between the lower end of the unhook clamping plate 102 and the lifting hook main body 1 for the hauling rope to pass through, the hauling rope is conveniently taken out, and the labor is not required to break off the unhook clamping plate 102.

The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims (7)

1. The utility model provides a hoist lifting hook, includes lifting hook main part (1), two base plates (2) and regulating plate (3), its characterized in that: the lifting hook main body (1) is arranged below the two base plates (2), and the lifting hook main body (1) is of a ring-shaped structure with a notch; the novel lifting hook is characterized in that a spring (101) is fixed on the inner wall of the lifting hook main body (1), one end, away from the lifting hook main body (1), of the spring (101) is fixedly provided with an inclined anti-falling clamping plate (102), two anti-falling hook protection rods (301) transversely penetrate through the lifting hook main body (1) outside the spring (101) and the anti-falling clamping plate (102), a screw (103) is rotationally connected to the outer wall of the lifting hook main body (1), an adjusting plate (3) is rotationally connected to the periphery of a threaded section of the screw (103), one end, away from the anti-falling clamping plate (102), of the two anti-falling hook protection rods (301) is jointly fixed on one surface, close to the lifting hook main body (1), of the adjusting plate (3), and limiting blocks (302) are sleeved on the peripheries of the two anti-falling hook protection rods (301) in the inner cavity of the lifting hook main body (1).

2. A crane hook as claimed in claim 1, wherein: the lifting hook is characterized in that a suspension piece (104) is fixed at the higher end of the lifting hook main body (1), the shorter end of the lifting hook main body (1) is provided with a lifting rope end (105), and the distance between the lifting rope end (105) and the suspension piece (104) is the notch of the lifting hook main body (1).

3. A crane hook as claimed in claim 2, wherein: the suspension piece (104) is rotatably connected to the bottom position between the opposite surfaces of the two base plates (2), the middle positions of the opposite surfaces of the two base plates (2) are rotatably connected with the wire wheel (201), and the diameter of the wire wheel (201) is larger than the maximum width of the base plates (2).

4. A crane hook as claimed in claim 2, wherein: the side and the bottom of the higher end of the lifting hook main body (1) are penetrated and provided with a notch (106), the notch (106) is rotationally connected with a pin shaft (1061), the higher end of the anti-falling clamping plate (102) is rotationally connected with the pin shaft (1061), and the lower end of the anti-falling clamping plate (102) is abutted on the inner wall of the lifting hook main body (1) below the lifting rope end (105).

5. A crane hook as claimed in claim 1, wherein: the side face of the periphery of the screw (103) at the joint of the screw (103) and the lifting hook main body (1) is a smooth part, and a handle (1031) is fixed at one end of the screw (103) far away from the lifting hook main body (1).

6. A crane hook as claimed in claim 1, wherein: two through holes (3022) are formed in the limiting block (302), the limiting block (302) penetrates through the two anti-unhooking protection rods (301) through the through holes (3022), bolts (3021) are screwed at two ends of the limiting block (302), and the ends of the bolts (3021) are screwed into the through holes (3022) to be abutted against the anti-unhooking protection rods (301) in the through holes (3022).

7. The crane hook of claim 4, wherein: the limiting block (302) is located above the lower end of the anti-falling clamping plate (102).