CN219526030U - Single rail clamp formula hoist - Google Patents

Abstract

The utility model discloses a single rail clamping type lifting appliance, which comprises a top retaining ring, a first pin shaft, an upper pull arm, a second pin shaft, a lower clamp arm, a third pin shaft and a locking assembly, wherein the tops of the two upper pull arms are in a herringbone shape and are hinged through the first pin shaft, the bottoms of the upper pull arms are hinged to the top ends of the lower clamp arms through the second pin shaft, and the two lower clamp arms are hinged together through the third pin shaft in the middle of a cross scissor type; the inner side of the bottom end of the lower clamp arm is provided with a jaw for clamping a steel rail to be hoisted; the locking component is arranged between the first pin shaft and the third pin shaft and can lock two length states. The single steel rail clamping type lifting appliance can independently lift a single steel rail, and is more flexible and reliable in operation.

Description

Single rail clamp formula hoist

Technical Field

The utility model relates to the technical field of hoisting equipment, in particular to a single rail clamping type lifting appliance.

Background

The prior art discloses the bulletin number: CN206665958U, publication date: the utility model discloses a multi-rail lifting device for the 11 th month and 24 th 2017, which comprises a left yoke plate, a right yoke plate, a left yoke plate, a right yoke plate and a clamping mechanism, wherein the upper ends of the left yoke plate and the right yoke plate are hinged through an upper pin shaft, the lower end of the left yoke plate is hinged with the upper end of the left yoke plate, the lower end of the right yoke plate is hinged with the upper end of the right yoke plate, the middle part of the left yoke plate and the middle part of the right yoke plate are hinged through a lower pin shaft, a shutter is arranged between the upper pin shaft and the lower pin shaft, the left yoke plate is arranged on the inner side of the right yoke plate, the clamping mechanism is suspended at the lower ends of the left yoke plate and the right yoke plate, and comprises a clamping plate box, and the outer side of the left yoke plate is provided with a limiting block for limiting the rotation angle of the right yoke plate.

However, in the technical solutions disclosed in the above patents, the steel rail is hoisted by adopting a way of synchronously clamping the steel rail at a plurality of positions of the left hook plate and the right hook plate. In actual work, single steel rail is often required to be independently hoisted, so that the multi-steel rail hoisting device is inconvenient to use.

Therefore, there is a need to develop a single rail clip-on spreader that addresses the above drawbacks.

Disclosure of Invention

The utility model aims to provide a single steel rail clamping type lifting appliance which can independently lift a single steel rail and is more flexible and reliable in operation.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model discloses a single rail clamping type lifting appliance, which comprises a top retaining ring, a first pin shaft, an upper pull arm, a second pin shaft, a lower clamp arm, a third pin shaft and a locking assembly, wherein the tops of the two upper pull arms are in a herringbone shape and are hinged through the first pin shaft, the bottoms of the upper pull arms are hinged to the top ends of the lower clamp arms through the second pin shaft, and the two lower clamp arms are hinged together through the third pin shaft in a cross scissor type middle part; the inner side of the bottom end of the lower clamp arm is provided with a jaw for clamping a steel rail to be hoisted; the locking component is arranged between the first pin shaft and the third pin shaft and can lock two length states.

Further, the pull-up arm comprises two long strips which are overlapped and arranged at a certain distance; the lower clamp arm comprises two L-shaped strips which are overlapped and arranged at a certain distance.

Further, the clamping part of the jaw is welded with a reinforcing side slat.

Further, the locking assembly comprises an opening and closing sleeve, a limit pin, a lock core rod and a lock tongue seat, wherein the top end of the opening and closing sleeve is sleeved with the upper bottom end opening of the first pin shaft and is in sliding sleeve connection with the lock core rod, a dislocation ring groove is formed in the outer wall of a cylinder of the lock core rod, and an upward long chute is formed in a group of top tooth groove roots of the dislocation ring groove; the two limit pins are symmetrically arranged on the outer wall of the opening and closing sleeve, and the limit pins slide in the dislocation ring grooves in a guiding way; the bottom end of the lock tongue seat is sleeved on the third pin shaft, and the bottom lock tongue of the lock cylinder rod is locked in the lock tongue seat.

Further, the lock tongue is inserted into the blind hole of the lock tongue seat and locked by using the top of the clamping block.

Further, a through hole is formed in the side wall of the lock tongue seat, the lock tongue is milled flat and is provided with a locking threaded hole, and a locking screw penetrates through the through hole in the side wall of the lock tongue seat and is in threaded connection with the locking threaded hole.

Further, the top retaining ring is of a U-shaped ring structure, and the bottom end of the top retaining ring is sleeved at two ends of the first pin shaft.

Further, still include the hoist cable subassembly, the hoist cable subassembly includes chain, butterfly knot and rings, the chain bottom is through one the butterfly knot is connected the top buckle, the chain top is through another the butterfly knot is connected rings, rings are used for connecting the lifting hook of lifting device.

Further, the outer end of the first pin shaft is provided with a threaded rod section, the threaded rod section is further provided with an opening pin hole, and the threaded rod section is in threaded connection with a hexagonal slotted nut and penetrates through the opening pin to the opening pin hole for axial locking.

Compared with the prior art, the single rail clamping type lifting appliance has the beneficial effects that:

according to the single rail clamping type lifting appliance, the jaw is directly arranged at the bottom end of the lower clamp arm, and the jaw is opened or closed in the process that the upper pull arm pulls the lower clamp arm, so that the lifting is completed; the lifting height can be reduced by using the herringbone arranged upper pull arms as driving pull arms. The single steel rail clamping type lifting appliance can independently lift a single steel rail, and is more flexible and reliable in operation.

In addition, through setting up pull-up arm and lower tong arm and all including two overlapping interval two laths, guaranteed the steady reliability of whole hoist, also have certain width in the department of keeping silent simultaneously, guaranteed hoist and mount steady. Through increasing the setting of side slat, can increase the structural strength of keeping silent, reduce wearing and tearing, guaranteed the life of hoist. Through the guide slip of opening and close sleeve and lock core pole to spacing pin slides in dislocation annular or long spout, and lock core pole does not break away from all the time and opens and close the sleeve, can guarantee that pull-up arm and lower tong arm centering flexible deformation, guarantees to keep silent centering and press from both sides tightly, avoids appearing the skew condition. The lock tongue is clamped in the blind hole of the lock tongue seat, so that free circumferential rotation can be realized in normal. Under the condition of transportation or non-use, the locking threaded hole is penetrated with a locking screw, so that the circumferential rotation of the lock core rod can be prevented, and the lifting appliance is ensured to enter a short state or a long state and be locked. Through cotter pin and hexagonal slotted nut's setting, can carry out axial locking to the outer end of first round pin axle, avoid taking place the condition that drops, equipment operation is reliable and stable.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a schematic diagram of a front view of a single rail clip-on spreader of the present utility model;

FIG. 2 is a right side view schematic of a single rail clip-on spreader of the present utility model;

fig. 3 is a schematic perspective view of a lock cylinder rod according to the present utility model.

Reference numerals illustrate: 1. a top clasp ring; 2. a first pin; 3. a pull-up arm; 4. a second pin; 5. a lower clamp arm; 501. a jaw; 6. a third pin; 7. opening and closing the sleeve; 8. limit pins; 9. a lock core rod; 901. a bolt; 9011. locking the threaded hole; 902. staggered ring grooves; 903. a long chute; 10. a bolt seat; 11. a sling assembly; 12. a rail.

Detailed Description

The core of the utility model is to provide the single steel rail clamping type lifting appliance which can independently lift the single steel rail and is more flexible and reliable in operation.

The following description of the embodiments of the present utility model will be made in detail with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to the drawings, FIG. 1 is a schematic diagram of a front view of a single rail clip-on spreader of the present utility model; FIG. 2 is a right side view schematic of a single rail clip-on spreader of the present utility model; fig. 3 is a schematic perspective view of a lock cylinder rod according to the present utility model.

In one embodiment, as shown in fig. 1 to 3, the single rail clip-on spreader of the present utility model comprises a top buckle 1, a first pin 2, an upper pull arm 3, a second pin 4, a lower clamp arm 5, a third pin 6, and a locking assembly. The top of the adult shape of the two upper pull arms 3 is hinged through a first pin shaft 2, the bottom of the upper pull arms 3 is hinged to the top end of the lower clamp arms 5 through a second pin shaft 4, the two lower clamp arms 5 are in a cross scissors mode, and the middle parts of the two lower clamp arms are hinged together through a third pin shaft 6. The third pin 6 is arranged at a position close to the bottom end. The inner side of the bottom end of the lower clamp arm 5 is provided with a jaw 501 for clamping the steel rail 12 to be hoisted. The locking assembly is arranged between the first pin shaft 2 and the third pin shaft 6 and can lock two length states: short state and long state. In a short state, the two jaws 501 are opened, so that the steel rail 12 to be hoisted is conveniently hoisted in place; in the long state, the two jaws 501 close and clamp the top end of the rail 12.

The jaw 501 is directly arranged at the bottom end of the lower clamp arm 5, and in the process that the upper pull arm 3 pulls the lower clamp arm 5, the jaw 501 is opened or closed to finish hoisting; the lifting height can be reduced by using the herringbone-arranged upper pull arms 3 as driving pull arms. The single steel rail clamping type lifting appliance can independently lift a single steel rail, and is more flexible and reliable in operation.

In one embodiment of the utility model, as shown in fig. 1 and 2, the pull-up arm 3 comprises two elongate strips arranged at a distance overlapping each other. The lower jawarms 5 comprise two L-shaped strips arranged at a distance overlapping each other. The length of the interval distance is matched with the length of the pin shaft, and the arm plates on the same pin shaft are axially staggered by one plate thickness position. For example, at a second pin 4, if two long strips of the upper arm 3 are threaded on the inside, two L-shaped strips of the lower arm 5 are symmetrically threaded on the outside of the long strips. The first pin shaft 2, the second pin shaft 4 and the third pin shaft 6 are hinged at each pin shaft and penetrate through four arm plates.

Through setting up pull-up arm 3 and lower tong arm 5 and all including two overlapping interval two laths, guaranteed the steady reliability of whole hoist, also have certain width in the department of keeping silent 501 simultaneously, guaranteed hoist and mount steady.

In one embodiment of the present utility model, as shown in fig. 1 and 2, the gripping portion of jaw 501 is welded with reinforcing side strips.

Through increasing the setting of side slat, can increase the structural strength of keeping silent 501, reduce wearing and tearing, guaranteed the life of hoist.

In a specific embodiment of the present utility model, as shown in fig. 1 to 3, the locking assembly includes an opening and closing sleeve 7, a limit pin 8, a lock cylinder rod 9 and a lock tongue seat 10, wherein the top end of the opening and closing sleeve 7 is sleeved on the upper bottom end opening of the first pin shaft 2, and is slidably sleeved with the lock cylinder rod 9, a dislocation ring groove 902 is arranged on the cylindrical outer wall of the lock cylinder rod 9, and an upward long chute 903 is arranged at a group of symmetrical top tooth groove roots of the dislocation ring groove 902. Preferably, the annular grooves 902 are offset, and there are four circumferentially evenly distributed grooves. The stroke length of the long chute 903 is the short-state and long-state switching stroke of the first pin 2 and the third pin 6. The two limit pins 8 are symmetrically arranged on the outer wall of the opening and closing sleeve 7, and the limit pins 8 slide in the dislocation ring grooves 902 in a guiding way. The bottom of the lock tongue seat 10 is sleeved on the third pin shaft 6, and the bottom lock tongue 901 of the lock cylinder rod 9 is locked at the top of the lock tongue seat 10.

Specifically, as shown in fig. 1 and 2, the limit pin 8 adopts a screw tightening mode, and a pin head is machined at the inner end of the screw and slides in a guiding manner in the dislocation ring groove 902; the thread section of the screw is connected with a gland center threaded hole welded on the outer wall of the opening and closing sleeve 7.

Specifically, as shown in fig. 1 to 3, the tongue 901 is inserted into a blind hole of the tongue seat 10 and is locked using two top of the two blocks of the half structure. That is, the two clamping blocks only clamp the neck of the lock tongue 901, and do not influence the circumferential rotation of the lock tongue 901 in the blind hole.

Specifically, as shown in fig. 1 to 3, a through hole is formed in a side wall of the latch bolt seat 10, a latch bolt 901 is milled flat and provided with a locking threaded hole 9011, and a locking screw passes through the through hole in the side wall of the latch bolt seat 10 and is in threaded connection with the locking threaded hole 9011.

Through the guiding sliding of the opening and closing sleeve 7 and the lock cylinder rod 9, and the limiting pin 8 slides in the dislocation annular groove 902 or the long sliding groove 903, the lock cylinder rod 9 is not separated from the opening and closing sleeve 7 all the time, the centering telescopic deformation of the upper pull arm 3 and the lower clamp arm 5 can be ensured, the clamping of the clamp jaw 501 is ensured, and the deflection condition is avoided. The lock tongue 901 is clamped in the blind hole of the lock tongue seat 10, so that free circumferential rotation can be realized in normal. Under the condition of transportation or no use, the locking screw is penetrated into the locking threaded hole 9011, so that the locking rod 9 can be prevented from rotating circumferentially, and the lifting appliance is ensured to enter a short state or a long state and be locked.

In a specific embodiment of the present utility model, as shown in fig. 1 and 2, the top snap ring 1 has a U-shaped ring structure, and a sleeve member is disposed at the bottom end of the top snap ring 1, and is sleeved at two ends of the first pin shaft 2.

Specifically, as shown in fig. 1 and 2, the lifting device further comprises a lifting rope assembly 11, wherein the lifting rope assembly 11 comprises a chain, butterfly buckles and lifting rings, the bottom end of the chain is connected with the top buckle 1 through one butterfly buckle, the top end of the chain is connected with the lifting rings through the other butterfly buckle, and the lifting rings are used for being connected with lifting hooks of lifting devices.

Through reasonable setting up top buckle 1 and hoist cable subassembly 11, the lifting hook of the flexible connection lifting device of being convenient for accomplish steady quick lifting by crane.

In a specific embodiment of the present utility model, as shown in fig. 2, the outer end of the first pin shaft 2 is provided with a threaded rod section, and the threaded rod section is further provided with a split pin hole, and the threaded rod section is in threaded connection with a hexagonal slotted nut and penetrates through the split pin to be axially locked to the split pin hole.

Through cotter pin and hexagonal slotted nut's setting, can carry out axial locking to the outer end of first round pin axle 2, avoid taking place the condition that drops, equipment operation is reliable and stable.

The single rail clamp type lifting appliance is used as follows: in the released state of the locking screw in the locking threaded hole 9011, the limit pin 8 is in the dislocated ring groove 902, the hanger enters a short state, and the hook of the crown block or crane is hung in the hanging ring of the sling assembly 11. The crane or the crown block is controlled to shift the single rail clamping type lifting appliance to the right middle position of the horizontally placed steel rail 12, the lifting appliance is lowered, the jaw 501 is noted to fall on the top of the steel rail 12 in a centering manner, the lifting appliance is lowered to a lifting hook loose state, the lifting appliance is lifted again, and the lifting appliance is lifted upwards. At this time, the locking bar 9 rotates 90 degrees, the limit pin 8 enters the long chute 903, the lifting appliance enters a long state, the top retaining ring 1 pulls the upper pulling arm 3, the upper pulling arm 3 pulls the lower clamping arm 5, the jaws 501 at the bottom end of the lower clamping arm 5 move in opposite directions and are centered, the head of the steel rail 12 is clamped, and the steel rail 12 is lifted in parallel to a position required to be used. When the steel rail is put down, the limiting pin 8 drives the lock core rod 9 to rotate 90 degrees and then enter the dislocation ring groove 902 again, the lifting appliance enters a short state, the jaw 501 opens, and the steel rail 12 is put down.

According to the single rail clamping type lifting appliance, the jaw 501 is directly arranged at the bottom end of the lower clamp arm 5, and in the process that the upper pull arm 3 pulls the lower clamp arm 5, the jaw 501 is opened or closed, so that the lifting is completed; the lifting height can be reduced by using the herringbone-arranged upper pull arms 3 as driving pull arms. The single steel rail clamping type lifting appliance can independently lift a single steel rail, and is more flexible and reliable in operation. In addition, through setting up pull-up arm 3 and lower tong arm 5 and all including two overlapping interval two laths, guaranteed the steady reliability of whole hoist, also have certain width in the department of keeping silent 501 simultaneously, guaranteed hoist and mount steady. Through increasing the setting of side slat, can increase the structural strength of keeping silent 501, reduce wearing and tearing, guaranteed the life of hoist. Through the guiding sliding of the opening and closing sleeve 7 and the lock cylinder rod 9, and the limiting pin 8 slides in the dislocation annular groove 902 or the long sliding groove 903, the lock cylinder rod 9 is not separated from the opening and closing sleeve 7 all the time, the centering telescopic deformation of the upper pull arm 3 and the lower clamp arm 5 can be ensured, the clamping of the clamp jaw 501 is ensured, and the deflection condition is avoided. The lock tongue 901 is clamped in the blind hole of the lock tongue seat 10, so that free circumferential rotation can be realized in normal. Under the condition of transportation or no use, the locking screw is penetrated into the locking threaded hole 9011, so that the locking rod 9 can be prevented from rotating circumferentially, and the lifting appliance is ensured to enter a short state or a long state and be locked. Through cotter pin and hexagonal slotted nut's setting, can carry out axial locking to the outer end of first round pin axle 2, avoid taking place the condition that drops, equipment operation is reliable and stable.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (9)

1. A single rail clamp formula hoist, its characterized in that: the device comprises a top retaining ring (1), a first pin shaft (2), an upper pull arm (3), a second pin shaft (4), a lower clamp arm (5), a third pin shaft (6) and a locking assembly, wherein the two upper pull arms (3) are in a herringbone shape, the tops of the upper pull arms are hinged through the first pin shaft (2), the bottoms of the upper pull arms (3) are hinged to the top ends of the lower clamp arms (5) through the second pin shaft (4), and the two lower clamp arms (5) are hinged together through the third pin shaft (6) in the middle of a cross scissor type; the inner side of the bottom end of the lower clamp arm (5) is provided with a jaw (501) for clamping a steel rail (12) to be hoisted; the locking component is arranged between the first pin shaft (2) and the third pin shaft (6) and can lock two length states.

2. The single rail clip-on spreader of claim 1, wherein: the upper pulling arm (3) comprises two overlapped long strips arranged at a certain distance; the lower clamp arm (5) comprises two L-shaped strips which are overlapped and arranged at a certain distance.

3. The single rail clip-on spreader of claim 1, wherein: the clamping part of the jaw (501) is welded with a reinforcing side slat.

4. The single rail clip-on spreader of claim 1, wherein: the locking assembly comprises an opening and closing sleeve (7), a limit pin (8), a lock cylinder rod (9) and a lock tongue seat (10), wherein the top end of the opening and closing sleeve (7) is sleeved with an opening at the bottom end of the first pin shaft (2) and is sleeved with the lock cylinder rod (9) in a sliding manner, a dislocation ring groove (902) is formed in the outer wall of a cylinder of the lock cylinder rod (9), and an upward long chute (903) is formed in a group of top tooth groove roots of the dislocation ring groove (902); the two limit pins (8) are symmetrically arranged on the outer wall of the opening and closing sleeve (7), and the limit pins (8) slide in the dislocation ring grooves (902) in a guiding way; the bottom end of the lock tongue seat (10) is sleeved on the third pin shaft (6), and a bottom lock tongue (901) of the lock cylinder rod (9) is locked in the lock tongue seat (10).

5. The single rail clip-on spreader of claim 4, wherein: the lock tongue (901) is inserted into a blind hole of the lock tongue seat (10) and locked by using the top of a clamping block.

6. The single rail clip-on spreader of claim 5, wherein: the side wall of the lock tongue seat (10) is provided with a through hole, the lock tongue (901) is milled and flattened and is provided with a locking threaded hole (9011), and a locking screw penetrates through the through hole on the side wall of the lock tongue seat (10) and is in threaded connection with the locking threaded hole (9011).

7. A single rail clip-on spreader as claimed in claim 1, wherein: the top retaining ring (1) is of a U-shaped ring structure, and the bottom end of the top retaining ring (1) is sleeved at two ends of the first pin shaft (2).

8. The single rail clip-on spreader of claim 7, wherein: still include hoist cable subassembly (11), hoist cable subassembly (11) include chain, butterfly knot and rings, the chain bottom is through one the butterfly knot is connected top buckle (1), the chain top is through another the butterfly knot is connected rings, rings are used for connecting the lifting hook of lifting device.

9. A single rail clip-on spreader as claimed in claim 1, wherein: the outer end of the first pin shaft (2) is provided with a threaded rod section, the threaded rod section is further provided with an opening pin hole, and the threaded rod section is in threaded connection with a hexagonal slotted nut and penetrates through the opening pin to the opening pin hole for axial locking.