CN214879587U

CN214879587U - Lifting appliance for lifting steel beam

Info

Publication number: CN214879587U
Application number: CN202121251045.8U
Authority: CN
Inventors: 刘磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-11-26
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a hoist is used in girder steel hoist and mount belongs to lifting device technical field. The utility model provides a hoist is used in girder steel hoist and mount, includes side hook portion, connecting portion and rings, side hook portion symmetry is provided with two, two the relative medial surface of side hook portion passes through connecting portion are connected, rings set up the last side of connecting portion. The utility model discloses set up gear drive, two hook plate synchronous adjustment guarantee that the focus at the hoist and mount in-process is stable, guarantee the precision of hoist and mount.

Description

Lifting appliance for lifting steel beam

Technical Field

The utility model relates to a lifting device technical field especially relates to a hoist is used in girder steel hoist and mount.

Background

Steel structure buildings are increasingly adopted in buildings such as factory buildings and public facilities due to efficient installation forms and low use cost. In steel structure construction, the steel beams mainly adopt I-steel, H-shaped steel and channel steel types, and the construction requirements are met by the high strength of the steel beams.

In the hoisting process of the steel beam, the fixation of the steel beam is always a problem. Because the surfaces of the steel beams are smooth, and the steel beams with different models have different sizes; in the concrete operation, the steel wire rope is generally directly wound on the steel beam.

However, the steel wire rope has limited bending degree due to its own characteristics, and cannot be tightly attached to the outer surface of the steel beam, so that the stability is poor. Although some clamps, hooks and the like are used for assisting, the devices are easy to slide in the process of hoisting and lifting, and the safety of construction is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the lifting appliance for lifting the steel beam is unstable in clamping and sliding in lifting in the prior art, and providing the lifting appliance for lifting the steel beam.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lifting appliance for lifting a steel beam comprises two side hook parts, connecting parts and lifting rings, wherein the two side hook parts are symmetrically arranged, the opposite inner side surfaces of the two side hook parts are connected through the connecting parts, and the lifting rings are arranged on the upper side surfaces of the connecting parts;

the side hook part comprises two hook plates and a support plate, the two hook plates are symmetrically arranged at two ends of the inner side of the support plate, and a fixed shaft is arranged on the outer side surface of each hook plate and is inserted into the support plate to rotate;

the opposite inner sides of the two hook plates are provided with stretching locking devices, and two ends of each stretching locking device are respectively connected with the two hook plates in a rotating manner; the stretching locking device is composed of two pull rods, a U-shaped groove and a ratchet wheel, one end of each of the two pull rods is rotatably connected with the hook plates on the two sides, the other end of each of the two pull rods is inserted into the U-shaped groove to slide, strip-shaped teeth are arranged on the upper side face of each of the two pull rods, the upper side face of each of the U-shaped grooves is rotatably connected with the ratchet wheel through a vertical support plate, the ratchet wheel is meshed with the strip-shaped teeth, and a pawl is arranged on one side of the ratchet wheel.

Preferably, the bottom of the side hook part is provided with a roller shaft.

Preferably, the number of the roll shafts is two, and two ends of the two roll shafts are respectively arranged in the hook plates corresponding to the side hook parts on the two sides.

Preferably, the outer surface of the roller shaft is provided with a rubber layer.

Preferably, the connecting part consists of an upper connecting plate and a lower connecting plate, and the upper connecting plate and the lower connecting plate are respectively arranged at the upper part and the lower part of the inner side surface of the support plate.

Preferably, the number of the hanging rings is two, and the two hanging rings are symmetrically arranged at two ends of the upper side surface of the connecting part.

Preferably, the lower part of the connecting part is provided with a pressing part;

the pressing part is composed of an internal thread cylinder, a threaded rod and a pressing plate, the internal thread cylinder is vertically arranged on the lower surface of the connecting part, the threaded rod is in threaded connection with the internal thread cylinder, and the pressing plate is fixedly connected to the lower end of the threaded rod.

Preferably, a nut is fixedly connected to the outer surface of the threaded rod.

Preferably, the fixed shaft penetrates through the outer surface of the support plate, a first gear is fixedly connected to the outer surface of the fixed shaft, two second gears are rotatably connected to the outer side surface of the support plate, the two second gears are arranged at the inner sides of the two first gears, the two second gears are meshed with each other, and the two second gears are respectively meshed with the first gears at the two sides.

Compared with the prior art, the utility model provides a hoist is used in girder steel hoist and mount possesses following beneficial effect:

1. the utility model is provided with gear transmission, and the two hook plates are synchronously adjusted, so that the center of gravity is stable in the hoisting process, and the hoisting precision is further ensured; the stretching locking device realizes self-locking, fixes the opening degree of the hook plate, avoids slipping in hoisting and is convenient and fast to operate.

2. The utility model is provided with two rings, which reduces the rotation; the roll shaft is arranged to prevent the tip part of the hook plate from contacting with the steel beam to generate scratches; the outer surface of the roll shaft is provided with a rubber layer, so that friction force is increased, and clamping is stable.

3. The length of the pressing part can be adjusted, the relative position of the lifting appliance and the steel beam is fixed, and the sliding of the lifting appliance is avoided in the lifting process; the construction safety is ensured, and the hoisting precision is improved.

The part which is not involved in the device is the same as the prior art or can be realized by adopting the prior art, the utility model is provided with gear transmission, and the two hook plates are synchronously adjusted, thereby ensuring the stable gravity center in the hoisting process and further ensuring the hoisting precision; the stretching locking device realizes self-locking, fixes the opening degree of the hook plate, avoids slipping in hoisting and is convenient and fast to operate; two lifting rings are arranged to reduce the rotation; the roll shaft is arranged to prevent the tip part of the hook plate from contacting with the steel beam to generate scratches; the rubber layer is arranged on the outer surface of the roller shaft, so that friction force is increased, and stable clamping is realized; the length of the pressing part can be adjusted, the relative position of the lifting appliance and the steel beam is fixed, and the sliding of the lifting appliance is avoided in the lifting process; the construction safety is ensured, and the hoisting precision is improved.

Drawings

Fig. 1 is a left side view structure diagram of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an elevational cross-sectional structural schematic view of the stretch lock;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is a right side view of the U-shaped groove;

fig. 6 is a schematic front view of the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at C;

FIG. 8 is an enlarged view of the structure of FIG. 6 at D;

fig. 9 is a schematic right sectional view of the present invention.

In the figure: 1. a side hook portion; 2. a connecting portion; 201. an upper connecting plate; 202. a lower connecting plate; 3. a hoisting ring; 4. a hook plate; 5. a support plate; 6. a fixed shaft; 7. a tension lock device; 701. a pull rod; 702. a U-shaped groove; 703. a ratchet wheel; 704. a bar-shaped tooth; 705. a vertical support plate; 706. a pawl; 8. a roll shaft; 9. a pressing part; 901. an internal threaded barrel; 902. a threaded rod; 903. a lower pressing plate; 10. a nut; 11. a first gear; 12. a second gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 9, a lifting appliance for lifting a steel beam comprises a side hook part 1, a connecting part 2 and a lifting ring 3; the two side hook parts 1 are symmetrically arranged, the opposite inner side surfaces of the two side hook parts 1 are connected through the connecting part 2, and the hanging ring 3 is arranged on the upper side surface of the connecting part 2. When the lifting appliance is used, the side hook parts 1 hook the steel beam, the lifting rings 3 penetrate the steel wire rope, and the lifting appliance is lifted.

The side hook 1 is composed of a hook plate 4 and a support plate 5. Two hook plates 4 are arranged, and the two hook plates 4 are symmetrically arranged at two ends of the inner side of the support plate 5; specifically, the outer side surfaces of the hook plates 4 are provided with fixed shafts 6, the fixed shafts 6 are inserted into the support plate 5 to rotate, and the two hook plates 4 are rotatably connected to the inner side surface of the support plate 5. The hook plate 4 is in a 7-shaped shape, and the included angle of the two parts of the 7-shaped shape is preferably set to be an acute angle; so that when the large angle is opened, the included angle between the lower part of the 7 shape and the horizontal plane is smaller, and the clamping effect is better.

Further, the fixed shaft 6 penetrates through the outer surface of the support plate 5, and a first gear 11 is fixedly connected to the outer surface of the fixed shaft 6; two second gears 12 are rotatably connected to the outer side surface of the support plate 5, and the two second gears 12 are arranged at the opposite inner side positions of the two first gears 11; a first gear 11, a second gear 12 and a first gear 11 are arranged from one side to the other side in sequence; the two second gears 12 are engaged with each other, and the two second gears 12 are engaged with the first gears 11 on both sides, respectively. The gear is arranged for transmission, when one hook plate 4 is adjusted, the other hook plate 4 is driven to rotate, and the two hook plates 4 are ensured to be symmetrical by taking the vertical bisector of the support plate 5 as a central axis all the time; guarantee at the hoist and mount in-process, the focus of girder steel is stable, further guarantees the precision of hoist and mount.

The connecting part 2 consists of an upper connecting plate 201 and a lower connecting plate 202; the upper connecting plate 201 and the lower connecting plate 202 are flat plate structures, are respectively arranged at the upper part and the lower part of the inner side surface of the support plate 5, and are connected with the two support plates 5 at two sides. The upper side surface of the upper connecting plate 201 is flat with the upper side surface of the support plate 5, the lower side surface of the lower connecting plate 202 is flat with the lower side surface of the support plate 5, and the upper connecting plate 201 and the lower connecting plate 202 are arranged in parallel. According to specific requirements, a reinforcing plate can be arranged between the upper connecting plate 201 and the lower connecting plate 202 to enhance the bearing capacity of the connecting plates. The area of the lower connecting plate 202 is smaller than that of the upper connecting plate 201, and ensures that the closed path of the hook plate 4 is not obstructed when the hook plate 4 is set to the minimum opening degree. The upper plate and the lower plate are matched and combined, so that the material consumption and the self weight are reduced on the basis of ensuring enough strength, and the installation and the operation are convenient.

The number of rings 3 is two, and two rings 3 symmetry sets up the both ends of the side on connecting portion 2. When one lifting ring penetrates through the steel wire rope, the steel wire rope is easy to rotate; the two rotation devices can reduce the rotation to a certain extent.

The opposite inner sides of the two hook plates 4 are provided with stretching locking devices 7, and two ends of each stretching locking device 7 are respectively connected with the two hook plates 4 in a rotating mode to fix the opening degree of the two hook plates 4.

Specifically, the tension lock 7 is composed of a tension rod 701, a U-shaped groove 702 and a ratchet wheel 703. Two pull rods 701 are arranged, and one ends of the two pull rods 701 are respectively in rotating connection with the hook plates 4 on the two sides; wherein, the pull rod 701 is the long bar-shaped structure, and the one end trompil of pull rod 701 matches the grip block of fixed connection at the hook plate 4 surface to and run through the grip block, the bolt of the trompil of pull rod 701, rotate with hook plate 4 and be connected. The other end of the pull rod 701 is inserted in the U-shaped groove 702 to slide. Wherein, the opening of the U-shaped groove 702 faces upwards; the upper side of the pull rod 701 is provided with a plurality of bar-shaped teeth 704, the number of the bar-shaped teeth 704 is a plurality, and the bar-shaped teeth 704 are uniformly arranged on the upper side of the pull rod 701 at intervals. The upper side surface of the U-shaped groove 702 is rotatably connected with a ratchet 703 through a vertical support plate 705; the two vertical support plates 705 are symmetrically arranged, the ratchet 703 is clamped in the middle, and a rotating shaft of the ratchet 703 penetrates through the vertical support plates 705 and is rotatably connected with the vertical support plates 705. The ratchet wheel 703 is provided with two, and the two ratchet wheels are respectively meshed with the strip-shaped teeth 704 of one pull rod 701 and are in transmission connection. A pawl 706 is arranged on one side of the ratchet wheel 703; one end of the pawl 706 limits the outward stretching of the pull rod 701 when being screwed between the teeth of the ratchet 703; after being screwed out, the pull rod 701 can freely stretch and retract.

The bottom of each side hook part 1 is provided with two roll shafts 8, and the two ends of each roll shaft 8 are respectively arranged in the corresponding hook plates 4 of the side hook parts 1 on the two sides. Specifically, the insertion shafts at the two ends of the roller shaft 8 are inserted into the positions close to the end parts of the downward-folded parts of the hook plates 4; and, the surface of the roller shaft 8 protrudes from the upper surface of the inside of the folded-down portion of the hook plate 4. When the steel beam is hooked, the outer surface of the roll shaft 8 is in contact with the steel beam; the round roller shaft 8 prevents the tip part of the hook plate 4 from contacting the steel beam to generate scratches.

Further, a rubber layer is arranged on the outer surface of the roller shaft 8, so that friction force is increased, and stable clamping is realized; and, avoid the loss of the metal part of roller 8 and girder steel friction, collision.

The lower part of the connecting part 2 is provided with a pressing part 9, and the length of the pressing part 9 can be adjusted; after the angle of the hook plate 4 is adjusted and the steel beam is clamped, the lower part of the lower pressing part 9 is adjusted to be in contact with the upper surface of the steel beam, and downward pressure is provided for the steel beam; the relative position of the lifting appliance and the steel beam is fixed, so that the sliding of the lifting appliance is avoided in the lifting process; the construction safety is ensured, and the hoisting precision is improved.

Specifically, the pressing portion 9 is composed of an internally threaded cylinder 901, a threaded rod 902, and a pressing plate 903. The internal thread cylinder 901 is vertically arranged on the lower surface of the connecting part 2, the threaded rod 902 is inserted into the internal thread cylinder 901 and is in threaded connection with the internal thread cylinder 901, and the lower pressing plate 903 is fixedly connected to the lower end of the threaded rod 902; through the adjustment length of rotatory threaded rod 902, the holding down plate 903 of setting increases the area of contact with the girder steel, further improves firm degree.

Further, a nut 10 is fixedly connected to an outer surface of the threaded rod 902, and the nut 10 is disposed at an upper position of the lower press plate 903. The nut 10 is clamped to be adjusted by using equipment such as a wrench, and the convenience of operation is improved.

When the utility model is used, the stretching locking device 7 is firstly unlocked, namely, the pawl 706 is screwed out, so that the pull rod 701 can freely stretch and retract; the hook plate 4 is opened, after the steel beam is clamped, the stretching locking device 7 is adjusted to be in a self-locking state, namely, the pawl 706 is screwed between the gear teeth of the ratchet 703; the opening degree is reduced, and the steel beam is firmly clamped; then, adjusting the pressing part 9 to be in contact with the upper surface of the steel beam, and fixing the relative position of the lifting appliance and the steel beam; and a steel wire rope is used for penetrating through the hoisting ring 3 for hoisting.

In the utility model, the gear transmission is arranged, and the two hook plates 4 are synchronously adjusted, so that the center of gravity is stable in the hoisting process, and the hoisting precision is further ensured; the stretching locking device 7 realizes self-locking, fixes the opening degree of the hook plate 4, avoids slipping in hoisting and is convenient and fast to operate; two lifting rings 3 are arranged to reduce the rotation; the roll shaft 8 is arranged to prevent the tip part of the hook plate 4 from contacting with the steel beam to generate scratches; the rubber layer is arranged on the outer surface of the roller shaft 8, so that friction force is increased, and stable clamping is realized; the length of the pressing part 9 can be adjusted, the relative position of the lifting appliance and the steel beam is fixed, and the sliding of the lifting appliance is avoided in the lifting process; the construction safety is ensured, and the hoisting precision is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The lifting appliance for lifting the steel beam is characterized by comprising two side hook parts (1), two connecting parts (2) and two lifting rings (3), wherein the opposite inner side surfaces of the two side hook parts (1) are connected through the connecting parts (2), and the lifting rings (3) are arranged on the upper side surfaces of the connecting parts (2);

the side hook part (1) consists of two hook plates (4) and a support plate (5), the two hook plates (4) are symmetrically arranged at two ends of the inner side of the support plate (5), a fixed shaft (6) is arranged on the outer side surface of each hook plate (4), and the fixed shaft (6) is inserted into the support plate (5) to rotate;

stretching locking devices (7) are arranged on the opposite inner sides of the two hook plates (4), and two ends of each stretching locking device (7) are respectively in rotating connection with the two hook plates (4); the stretching locking device (7) is composed of two pull rods (701), a U-shaped groove (702) and ratchet wheels (703), one end of each of the two pull rods (701) is respectively connected with the hook plates (4) on two sides in a rotating mode, the other end of each of the two pull rods (701) is inserted into the U-shaped groove (702) in a sliding mode, strip-shaped teeth (704) are arranged on the upper side face of each of the two pull rods (701), the upper side face of each of the U-shaped grooves (702) is connected with the ratchet wheels (703) in a rotating mode through a vertical support plate (705), the ratchet wheels (703) are meshed with the strip-shaped teeth (704), and a pawl (706) is arranged on one side of each of the ratchet wheels (703).

2. A lifting appliance for lifting steel beams according to claim 1, characterized in that the bottom of the side hook (1) is provided with a roll shaft (8).

3. The lifting appliance for lifting steel beams according to claim 2, wherein the number of the roll shafts (8) is two, and two ends of the two roll shafts (8) are respectively arranged in the hook plates (4) corresponding to the side hook parts (1) on two sides.

4. A lifting appliance for lifting steel beams according to claim 2, characterized in that the outer surface of the roll shafts (8) is provided with a rubber layer.

5. A lifting appliance for lifting steel beams according to claim 1, wherein the connecting part (2) consists of an upper connecting plate (201) and a lower connecting plate (202), and the upper connecting plate (201) and the lower connecting plate (202) are respectively arranged at the upper part and the lower part of the inner side surface of the support plate (5).

6. A lifting appliance for lifting steel beams according to claim 1, wherein the number of the lifting rings (3) is two, and the two lifting rings (3) are symmetrically arranged at two ends of the upper side surface of the connecting part (2).

7. A lifting appliance for lifting steel beams according to claim 1, wherein a lower part of the connecting part (2) is provided with a pressing part (9);

the pressing part (9) is composed of an internal thread cylinder (901), a threaded rod (902) and a pressing plate (903), the internal thread cylinder (901) is vertically arranged on the lower surface of the connecting part (2), the threaded rod (902) is in threaded connection with the internal thread cylinder (901), and the pressing plate (903) is fixedly connected to the lower end of the threaded rod (902).

8. A lifting appliance for lifting steel beams according to claim 7, wherein the outer surface of the threaded rod (902) is fixedly connected with a nut (10).

9. A lifting appliance for lifting steel beams according to claim 1, wherein the fixed shaft (6) penetrates through the outer surface of the support plate (5), a first gear (11) is fixedly connected to the outer surface of the fixed shaft (6), two second gears (12) are rotatably connected to the outer side surface of the support plate (5), the two second gears (12) are arranged at the inner side positions opposite to the two first gears (11), the two second gears (12) are meshed, and the two second gears (12) are respectively meshed with the first gears (11) at two sides.