CN211733622U

CN211733622U - Adjustable lifting clamp

Info

Publication number: CN211733622U
Application number: CN201922146371.1U
Authority: CN
Inventors: 李素杰; 孙方跃; 申志宏; 徐晋; 王新宇
Original assignee: Changchun Yidong Clutch Co ltd
Current assignee: Changchun Yidong Clutch Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-10-23
Anticipated expiration: 2029-12-04

Abstract

An adjustable hoisting clamp belongs to the field of mechanical auxiliary equipment. The utility model aims at being capable of directly hoisting the adjustable hoisting clamp of goods under the condition that the goods are not bound. The upper end of the connecting plate of the utility model is fixedly connected with the lower end of the suspender, the lower end of the connecting plate is connected with the hoisting head through a shaft, the hoisting head is inserted at the top end of the central shaft through threads, the central shaft is sequentially sleeved with a ball guide sleeve and an outer sleeve, and the central shaft at the lower end of the outer sleeve is provided with a locking ring; the bottom end of the central shaft is fixedly provided with a claw arm fixing frame, and the tail end of the claw arm is connected to the claw arm fixing frame through a claw arm shaft. The utility model discloses the form of holding the object similar to the claw is carried out and is snatched the goods, so, need not carry out tying up of rope to the goods and tie up, saved the process, reduced personnel's intensity of labour.

Description

Adjustable lifting clamp

Technical Field

The utility model belongs to mechanical auxiliary equipment field.

Background

The hoisting tool is a mechanical tool frequently used in daily production processes of existing industrial and mining enterprises, but the existing conventional hoisting tool basically adopts hoisting hoists, hoisting rigging, hoisting chain blocks and the like, and although the structures have many differences, the basic principle is that a structure with a hook is arranged at the bottom end of a metal chain. The hoisting device needs to bind some mechanisms which are convenient for the hook to hang, such as ropes, on the hoisted goods, and the hoisting device is based on the premise that the ropes, etc. are bound on the hoisted goods, so the hoisting process is relatively complex. Sometimes, when no rope exists, three lifting hooks can be used for lifting, the three lifting hooks are hooked at the bottom of the cargo from a triangular shape in the lifting process, and although rope binding is omitted in the mode, stability and safety cannot be guaranteed.

Disclosure of Invention

The utility model aims at being capable of directly hoisting the adjustable hoisting clamp of goods under the condition that the goods are not bound.

The upper end of the connecting plate of the utility model is fixedly connected with the lower end of the suspender, the lower end of the connecting plate is connected with the hoisting head through a shaft, a swinging allowance gap is left between the suspender and the hoisting head, the hoisting head is inserted at the top end of the central shaft through threads, and the hoisting head is sleeved with a fastening bolt through threads; the central shaft is sequentially sleeved with a ball guide sleeve and an outer sleeve, and the central shaft at the lower end of the outer sleeve is provided with a locking ring; a claw arm fixing frame is fixedly arranged at the bottom end of the central shaft, the tail end of the claw arm is connected to the claw arm fixing frame through a claw arm shaft, the claw arm is connected with one end shaft of a connecting rod through a connecting rod shaft, the other end of the connecting rod is connected to one end of a support arm through a support arm shaft, and the other end of the support arm is fixedly arranged on an outer sleeve;

locking a ring: the middle part of the locking ring body is a central shaft hole, a half-width locking groove is formed in the locking ring body, a full-width locking groove is formed in the other side corresponding to the axis of the half-width locking groove, bolt holes are formed in two parts, corresponding to the full-width locking groove, of the locking ring body, the locking bolt penetrates through one part of the locking ring body, the tail end of the locking bolt is connected with the other part of the locking ring body through threads, and a rotating handle is mounted on the locking bolt.

The utility model discloses the claw arm outer end colludes the arm for buckling, and the tip that colludes the arm of buckling is interior the returning and colludes.

The utility model discloses the quantity of claw arm adopts threely to the contained angle is 120 between every claw arm.

The utility model discloses simple structure, operation convenient to use. The utility model discloses the form of holding the object similar to the claw is carried out and is snatched the goods, so, need not carry out tying up of rope to the goods and tie up, saved the process, reduced personnel's intensity of labour. The arrangement of the three claw arms just forms the support of one surface, and the barb at the end part of the claw arm can be hooked in a surface mode completely from the bottom of the goods, so that the hook is more stable, and the safety is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the locking ring structure of the present invention;

FIG. 4 is a schematic view of the claw arm structure of the present invention;

fig. 5 is a schematic diagram of the ball guide sleeve, the outer sleeve and the locking ring of the present invention, which are sleeved on the central shaft.

Detailed Description

The utility model discloses it is main exactly the design of a lifting claw, so, real take off and land mechanism still must dock with current equipment. 2 upper ends fixed connection of connecting plate is at 1 lower extreme of jib, and 1 top of jib is used for with take off and land the device butt joint, and this top can design fixed mode by oneself according to the condition of manufacturing enterprise separately.

The lower end shaft of the connecting plate 2 is connected to the hoisting head 5, a swinging allowance gap 3 is reserved between the hoisting rod 1 and the hoisting head 5, two connecting plates 2 are generally adopted, and the two connecting plates 2 clamp the hoisting rod 1 and the hoisting head 5 from two sides. Since the suspension rod 1 is connected with the lifting mechanism, the suspension rod cannot swing freely, so that the lower suspension claw mechanism can have a swing space, the suspension claw mechanism can be used as a transition piece through the connecting plate 2, and therefore, the suspension head 5 can swing in a range allowed by the swing allowance gap 3 relative to the suspension rod 1.

The hoisting head 5 is inserted at the top end of the central shaft 6 through threads, and the hoisting head 5 is sleeved with a fastening bolt 4 through threads; the hoisting head 5 is fastened to the top end of the central shaft 6 in a threaded manner, and the fastening bolt 4 is just a fastening function to prevent the hoisting head 5 from being disengaged in a manner similar to the conventional double-bolt fastening. The ball guide sleeve 8 and the outer sleeve 9 are sequentially sleeved on the central shaft 6, the ball guide sleeve 8 and the outer sleeve 9 can move up and down outside the central shaft 6, the central shaft 6 at the lower end of the outer sleeve 9 is provided with a locking ring 15, the locking ring 15 is used for limiting the moving positions of the ball guide sleeve 8 and the lower end of the outer sleeve 9 and preventing the ball guide sleeve 8 from falling off at the lower part of the outer sleeve 9, and the moving distance of the ball guide sleeve 8 and the outer sleeve 9 on the central shaft 6 determines the opening degree of the claw arm 7. A claw arm fixing frame 14 is fixedly installed at the bottom end of the central shaft 6, the tail end of a claw arm 7 is connected to the claw arm fixing frame 14 through a claw arm shaft 13 in a shaft mode, the claw arm 7 is connected with one end of a connecting rod 11 through a connecting rod shaft 12 in a shaft mode, the other end of the connecting rod 11 is connected to one end of a support arm 16 through a support arm shaft 10 in a shaft mode, and the other end of the support arm 16 is fixedly installed on an; the claw arm fixing frame 14 and the support arm 16 are fixed parts, the connecting rod 11 and the claw arm 7 are movable parts, and the claw arm 7 can be grasped and stretched by connecting in a shaft manner.

Locking ring 15: the middle part of a locking ring body 1503 is provided with a central shaft hole 1507, the locking ring body 1503 is provided with a half locking groove 1502, the other side corresponding to the axis of the half locking groove 1502 is provided with a full locking groove 1505, two parts of the locking ring body 1503 corresponding to the full locking groove 1505 are provided with bolt holes 1504, a locking bolt 1506 passes through one part of the locking ring body 1503, the tail end of the locking bolt is connected with the other part of the locking ring body 1503 through threads, and a rotating handle 1501 is installed on the locking bolt 1506. The locking ring 15 is constructed as an interchangeable part, and by fastening to the central shaft, it defines the distance of movement of the ball guide 8 and the outer sleeve 9 on the central shaft 6, which determines the extent of expansion and contraction of the claw arms 7.

The outer end of the claw arm 7 of the utility model is a bent hook arm 71, and the end part of the bent hook arm 71 is an inner return hook 72. The structural design of the bent hook arm 71 and the inner hook 72 can hook the goods from the bottom of the goods, similar to the effect of grabbing objects by fingers. The firmness in the process of grabbing the goods is further improved.

The utility model discloses the quantity of claw arm 7 adopts threely to the contained angle is 120 between every claw arm 7. The three claw arms are designed according to the principle that three points determine a plane, and the angles are equally divided, so that the grabbing is more stable.

The use process comprises the following steps:

now, the lifting machine installed with the utility model is placed on the top of the goods, then the device of the utility model is placed downwards, when the bottom end of the claw arm contacts the ground, the claw arm is under the action of middle gravity, the claw arm of the utility model is blocked and can not continuously descend, the above part of the central shaft can continuously descend, the claw arm can be opened, the ball guide sleeve 8 and the outer sleeve 9 can move upwards along the central shaft and pull apart from the locking ring 15, when the goods is completely covered in the three claw arms, the lifting machine is lifted, at the moment, the central shaft moves upwards, the ball guide sleeve 8 and the outer sleeve 9 move downwards, the claw arm carries out the action of hand grasping, the bending hook arm 71 can extend into the bottom of the goods, after the goods completely go deep, at the moment, the ball guide sleeve 8 and the outer sleeve 9 also contact with the locking ring 15, the claw arm is limited to continue to shrink, but the goods are basically grasped at the same time, under the machine of taking off and land continues lift effect, take the claw arm to mention the goods simultaneously, in order to prevent the goods slippage, the internal back colludes just to play the key role this moment, catches on bottom the goods. Therefore, after the goods are moved to the designated position, when the claw arms are completely opened, the ball guide sleeve 8, the outer sleeve 9 and the locking ring 15 are separated by a certain distance, at the moment, the locking ring is loosened, the claw arms move upwards to the bottoms of the ball guide sleeve 8 and the outer sleeve 9 to be locked, then the lifting machine is lifted, the device is simultaneously carried, the ball guide sleeve 8 and the outer sleeve 9 are limited relatively, therefore, the claw arms cannot be contracted, the goods cannot be grabbed when the claw arms are lifted, and the goods are placed at the designated position.

Claims

1. An adjustable stone tongs which characterized in that: the upper end of a connecting plate (2) is fixedly connected to the lower end of a suspender (1), the lower end of the connecting plate (2) is connected to a hoisting head (5) in a shaft mode, a swinging allowance gap (3) is reserved between the suspender (1) and the hoisting head (5), the hoisting head (5) is inserted into the top end of a central shaft (6) through threads, and a fastening bolt (4) is sleeved on the hoisting head (5) through the threads; a ball guide sleeve (8) and an outer sleeve (9) are sequentially sleeved on the central shaft (6), and a locking ring (15) is arranged on the central shaft (6) at the lower end of the outer sleeve (9); a claw arm fixing frame (14) is fixedly installed at the bottom end of the central shaft (6), the tail end of a claw arm (7) is connected to the claw arm fixing frame (14) through a claw arm shaft (13) in a shaft mode, the claw arm (7) is connected with one end shaft of a connecting rod (11) through a connecting rod shaft (12), the other end of the connecting rod (11) is connected to one end of a support arm (16) through a support arm shaft (10) in a shaft mode, and the other end of the support arm (16) is fixedly installed on an outer sleeve (9);

locking ring (15): the middle part of a locking ring body (1503) is provided with a central shaft hole (1507), the locking ring body (1503) is provided with a half-width locking groove (1502), the other side corresponding to the axis of the half-width locking groove (1502) is provided with a full-width locking groove (1505), two parts of the locking ring body (1503) corresponding to the full-width locking groove (1505) are provided with bolt holes (1504), a locking bolt (1506) penetrates through one part of the locking ring body (1503), the tail end of the locking bolt is connected with the other part of the locking ring body (1503) through threads, and a rotating handle (1501) is arranged on the locking bolt (1506).

2. An adjustable lifting clamp according to claim 1, characterised in that: the outer end of the claw arm (7) is provided with a bending hook arm (71), and the end part of the bending hook arm (71) is provided with an inner return hook (72).

3. An adjustable lifting clamp according to claim 1, characterised in that: the number of the claw arms (7) is three, and the included angle between every two claw arms (7) is 120 degrees.