CN214359788U - Novel hydraulic hanger lock - Google Patents

Abstract

The utility model discloses a novel fluid pressure type hoist lock, including travel switch, plectrum, dust ring, piston rod composite seal, end cover bolt, O type circle, end cover, piston rod support frame, cylinder body, piston support frame, piston composite seal, piston, frame bolt, frame, interior separation blade, metal steel ball, outer separation blade, flange bolt, flange isotructure. The piston descends by supplying oil to the oil inlet, and the metal steel ball is pushed into the groove of the flange to clamp the flange. The piston is lifted by supplying oil to the lower oil port, the metal steel balls are pushed into the grooves of the piston rod under the action force of the flange, and the flange is not in contact with the metal steel balls any more, so that the flange is released. The inner retaining piece and the outer retaining piece are elastically arranged on the inner wall and the outer wall of the cylinder body to limit the metal steel balls from falling off from the through holes of the cylinder body.

Description

Novel hydraulic hanger lock

Technical Field

The patent of the utility model relates to a cargo handling equipment technical field especially relates to a novel fluid pressure type hoist lock.

Background

In a construction, when a container is transported, a method of lifting and moving the container by a machine is generally used.

Traditional lifting hook needs the staff to carry out the overlap joint of lifting hook and lug before hoisting the heavy object, has not only increased staff intensity of labour, and work efficiency is extremely low moreover. The existing hoisting device is huge in structure, needs a lot of human resources, has a lot of potential safety hazards in a working site, and is easy to cause safety accidents. At present, the mode that a crane is matched with a container spreader to rotate to carry out operation is mostly adopted in a working site. But the lifting appliance rotary locking mechanism in the prior art has a complex structure and is inconvenient to disassemble, assemble and maintain. Occasionally, a box falling accident happens in engineering, and the hidden danger of the box falling accident is mainly on a lifting appliance spin-locking mechanism. In addition, since the side surface of the container has an unclosed structure, the corner fittings mounted on the side surface have poor connection strength, and the container is easily deformed.

To sum up, the handling equipment of present large-scale heavy object is urgently needed to be improved, needs a set of mechanical equipment to improve work efficiency, alleviates staff intensity of labour, improves the safety guarantee to accomplish simple structure, the dismouting of being convenient for, maintenance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel fluid pressure type hoist lock to mechanization degree is low in solving above-mentioned technical background, and the hoist is locked soon and is loaded and unloaded, the maintenance is troublesome, the poor problem of current corner fittings joint strength.

In order to realize the purpose, the following technical scheme is provided: the utility model provides a metal steel ball on the accessible trough of belt piston rod rises and descends, drives device carries out the chucking and breaks away from the flange of connection on the container to accomplish the hoist and mount of container and the novel fluid pressure type hoist lock of dismantlement process.

In the technical scheme, the novel hydraulic lifting appliance lock comprises a cylinder body, wherein the cylinder body is connected with a rack through a bolt. The piston is arranged in the cylinder body, the upper end of the piston rod extends out of the through hole of the end cover, and the end cover is connected with the cylinder body through a bolt. The upper end of the piston rod is in threaded connection with the shifting piece, and the shifting piece can touch or be separated from the travel switch along with the rising and falling of the piston. The lower end of the piston rod is provided with a circle of annular piston rod groove. The inner wall of the lower end of the cylinder body is uniformly provided with 8 through holes at the lower end of the cylinder body, and each hole is internally provided with 1 metal steel ball. The inner retaining piece and the outer retaining piece are arranged on the inner wall and the outer wall of the cylinder body to prevent the metal steel balls from falling from the through holes of the cylinder body. The flange is connected with the heavy object through a bolt, a circle of annular flange groove is formed in the inner wall of the flange, and a flange boss is arranged at the lower end of the flange and can limit the moving stroke of the cylinder body.

Among the above-mentioned technical scheme, when the flange was in the chucking state, the piston was located the lower, and along with the hydraulic fluid port oil feed down, the piston rose, and the metal steel ball falls into the piston rod recess, and the flange is no longer contacted with the metal steel ball, is in the disengagement state, realizes the separation from with the cylinder body with the heavy object together.

Among the above-mentioned technical scheme, when the flange was in the off-state, the piston was located the highest point, stretched into the flange inner wall with the cylinder body lower extreme, made the cylinder body through-hole align with the flange recess, along with last hydraulic fluid port fuel feeding, the piston descends, and the metal steel ball is pushed in the flange recess, realizes the chucking of flange.

In the technical scheme, the inner blocking piece and the outer blocking piece are of unclosed annular structures, and the inner blocking piece and the outer blocking piece are elastically installed on the inner wall and the outer wall of the lower end of the cylinder body. The inner blocking piece and the outer blocking piece can limit the metal steel balls so that the metal steel balls do not separate from the through hole of the cylinder body.

In the technical scheme, as the piston rises, the plectrum touches the travel switch, the indicator light is lightened, and the flange is in a separation state; along with the descending of the piston, the travel switch returns, and the indicator light goes out, which indicates that the flange is in a clamping state.

Compared with the prior art, the beneficial effects of the utility model are as follows: 1. the utility model discloses a set up pneumatic cylinder and piston rod, the staff makes the flange that is connected with the heavy object realize chucking and break away from through the fuel feeding of control upper and lower hydraulic fluid port, through controlling the removal of pneumatic cylinder, can realize the transport of heavy object to reduce staff's intensity of labour, reduced required labour, improved work efficiency; 2. the novel hydraulic lifting appliance lock designed by the utility model has simpler structure and smaller occupied space; 3. the hydraulic cylinder has high stability, strong reliability, difficult damage and certain buffer performance; 4. the utility model discloses well piston rod axial atress only has a minimum frictional force, need not set up piston rod locking mechanism in addition.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

FIG. 2 is a schematic view showing a flange-off state of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1;

fig. 4 is a partially enlarged view of B in fig. 2.

As shown in fig. 1, a travel switch (1), a shifting sheet (2), a dust ring (3), a piston rod combined sealing ring (4), an end cover bolt (5), an O-shaped ring (6), an end cover (7), a piston rod supporting frame (8), a cylinder body (9), a piston supporting frame (10), a piston combined sealing ring (11), a piston (12), a rack bolt (13), a rack (14), an inner blocking sheet (15), a metal steel ball (16), an outer blocking sheet (17), a flange bolt (18) and a flange (19).

As shown in fig. 3, the cylinder block comprises a flange groove (101), a cylinder block through hole (102), a piston rod groove (103), and a flange boss (104).

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. These figures are simplified schematic diagrams illustrating the basic structure of the invention only in a schematic way, and therefore they show only the processes related to the invention.

The utility model discloses a working process divide into two parts:

the first part is the flange clamping process, see fig. 1. The flange 19 is connected with a heavy object through a flange bolt 18, and the cylinder body 9 is driven to move through the control frame 14, so that the cylinder wall at the lower end of the cylinder body 9 extends into the inner wall of the flange 19. When the cylinder block 9 is lowered to the position where the lower end surface touches the flange boss 104, the flange groove 101 is aligned with the cylinder block through-hole 102 at this time. At the moment, oil is supplied to the upper oil port, the oil is injected into the upper cavity of the hydraulic cylinder body 9 through the upper oil port, and the piston 12 moves downwards under the action of oil pressure. At this time, the metal balls 16 located in the piston rod groove 103 and the cylinder body through hole 102 are pressed into the cylinder body through hole 102 and the flange groove 101 along the inclined surface of the piston rod groove 103 by an external force, and the flange 19 is clamped because the piston rod limits the movement of the metal balls 16. At this time, material handling can be realized by moving the lifting appliance.

The second part is the flange detachment process, please refer to fig. 2. When the flange 19 is clamped, oil is supplied into the lower oil port, and the oil is injected into the lower cavity of the hydraulic cylinder body 9 through the lower oil port, so that the piston 12 moves upward under the action of the oil pressure. When the piston rod groove 103 is aligned with the cylinder through hole 102, the metal ball 16 in the cylinder through hole 102 loses the restriction of the inner piston rod to its displacement, and is pushed into the piston rod groove 103 by the force given by the flange 19. At this time, the metal balls 16 completely enter the piston rod groove 103 and the cylinder body through hole 102, the flange 19 is no longer in contact with the metal balls 16, and the flange 19 is released. At the moment, the lifting appliance is moved upwards, so that the cylinder wall at the lower end of the cylinder body 9 is separated from the inner hole of the flange 19, and the unloading process of the material is completed.

In addition, as the piston rises, when the flange is released, the shifting sheet 2 triggers the travel switch 1, the indicator light is turned on, and the flange 19 is prompted to be in a release state; when the flange is clamped, the poking piece 2 is separated from the travel switch 1, the indicator light is turned off, and the flange 19 is prompted to be in a clamping state along with the descending of the piston.

In addition, the piston rod support frame 8 plays a role in guiding the piston rod, and the piston support frame 10 plays a role in guiding the piston 12; the dust ring 2 can prevent impurities such as dust from entering the cylinder body 9 in the working process of the hydraulic lifting appliance lock; the piston rod combined sealing ring 3, the piston combined sealing ring 11 and the O-shaped ring 5 play a role in sealing and leakage prevention of oil. The inner and outer blocking pieces 15 and 17 are ring-shaped elastic metal pieces with openings similar to snap springs, and the thickness of the metal pieces is slightly larger than the width of the ring-shaped step processed by the cylinder 9 in the through hole 102, so that the distance between the upper and lower inner blocking pieces 15 and the distance between the upper and lower outer blocking pieces 17 are slightly smaller than the diameter of the metal ball 16, thereby limiting the metal ball 16 from rolling in the through hole 102 without falling out, please refer to fig. 3. Wherein, the inner baffle plate 15 can prevent the metal steel ball 16 from falling into the cylinder 9; the outer stopper 17 prevents the metal balls from falling to the outside of the cylinder 9.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims (5)

1. A novel hydraulic hanger lock comprises a cylinder body (9), wherein the cylinder body (9) is connected with a rack (14) through a rack bolt (13); a piston (12) is arranged in the cylinder body (9), the upper end of the piston rod extends out of a through hole of the end cover (7), and the end cover (7) is connected with the cylinder body (9) through an end cover bolt (5); the upper end of the piston rod is connected with the shifting piece (2) through threads, and the device is characterized in that: the shifting piece (2) can touch or separate from the travel switch (1) along with the ascending and descending of the piston (12); the lower end of the piston rod is provided with a circle of annular piston rod groove (103); the inner wall of the lower end of the cylinder body (9) is uniformly provided with 8 cylinder body through holes (102), and each hole is internally provided with 1 metal steel ball (16); inner blocking pieces (15) and outer blocking pieces (17) are arranged on the inner wall and the outer wall of the cylinder body (9) to prevent the metal steel balls (16) from falling from the through holes (102) of the cylinder body; the flange (19) is connected with a heavy object through a flange bolt (18), a ring-shaped flange groove (101) is formed in the inner wall of the flange (19), and a flange boss (104) is arranged at the lower end of the flange (19) and can limit the moving stroke of the cylinder body (9); along with the rising of the piston (12), the plectrum (2) touches the travel switch (1), and the indicator light lights, which indicates that the flange (19) is in a disengaged state; with the descending of the piston (12), the travel switch (1) is reset, and the indicator light is turned off, so that the flange (19) is in a clamping state.

2. The novel hydraulic spreader lock of claim 1, wherein: the cylinder body (9) is an integrated structure formed by integrating a hydraulic cylinder and the through hole wall of the lower steel ball locking mechanism.

3. The novel hydraulic spreader lock of claim 1, wherein: the cylinder body through holes (102) comprise 8 evenly distributed square through holes.

4. The novel hydraulic spreader lock of claim 1, wherein: the inner side and the outer side of the cylinder body through hole (102) are respectively provided with an inner baffle plate (15) and an outer baffle plate (17) which are in non-closed annular structures.

5. The novel hydraulic spreader lock of claim 1, wherein: the lower end of the flange (19) is provided with a circle of flange boss (104) for limiting the descending stroke of the cylinder body.

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