CN212893587U

CN212893587U - A light single armed dolly for shaped steel spare hoist and mount

Info

Publication number: CN212893587U
Application number: CN202021255662.0U
Authority: CN
Inventors: 伍彦斌; 黄宜伟; 曾学武; 粟航; 杨春华
Original assignee: China Railway No 5 Engineering Group Co Ltd; Mechanisation Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Current assignee: China Railway No 5 Engineering Group Co Ltd; Mechanisation Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-04-06
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a light single armed dolly for shaped steel spare hoist and mount, including main davit, digging arm, frame, wheel pair and hoist, the wheel pair is installed in the below of frame, and main davit is installed in the top of frame, and the one end at the main davit is installed to the hoist, and digging arm retractable pegs graft in the inner chamber of the main davit other end, is provided with the tong that is used for pressing from both sides tight shaped steel spare on the hoist. The utility model adopts the inverted triangle frame, the frame is connected with the wheel shaft by the detachable hoop, the whole stability is good, and the manufacture, the transportation and the assembly are easy; combine together through main davit and digging arm, realize the flexible function of davit, can adjust suitable arm of force length according to the weight of waiting to hang the component to reduce the required effort of jack-up, with the heavy demand of the different hanging of adaptation, and do not need the counter weight under general condition, the structure is light and handy, and it is nimble convenient to use, low cost, alone can realize whole hoist and mount operation, satisfies the hoist and mount or the transportation operation demand of conventional small-size steel member.

Description

A light single armed dolly for shaped steel spare hoist and mount

Technical Field

The utility model relates to a civil engineering technical field relates to the temporary equipment of bridge additional structure construction, concretely relates to light single armed dolly for shaped steel spare hoist and mount.

Background

In bridge engineering construction, some small-sized steel members are often required to be hoisted. For example, the cantilever beam of the contact net column foundation on the railway bridge, the cantilever beam of the sidewalk slab supporting, the cantilever beam of the pipeline bracket on the highway and the municipal bridge, etc., the components are mostly I-shaped or H-shaped steel beam prefabricated components, the quantity is large, and the weight of a single piece is generally in the range of 0.5 kN-2.0 kN. When the profile steel members are installed on the bridge, if all the transferring and hoisting are completed manually, the construction efficiency is low, the construction cost is high, and potential safety hazards exist; if the hoisting is carried out by large hoisting machinery, the input amount of mechanical equipment is large, the effective utilization rate of the mechanical equipment is low, the energy consumption is high, and the construction cost is greatly increased. Therefore, a portable hoisting trolley is generally adopted to assist in transferring and hoisting the small steel members on a construction site.

The existing hoisting trolley generally comprises a triangular frame, wheel sets, an operating handle and the like, the suspension arm of the existing hoisting trolley is generally not telescopic, the suspension arm of the existing hoisting trolley is not suitable to be too long for facilitating transportation, and when the weight of a component to be hoisted changes, the change needs to be realized by adjusting the number of counter weights or increasing manpower. Chinese patent CN 209127925U discloses a single-arm hoisting trolley, which comprises a frame, a traveling wheel, a counterweight, a pushing handle, a telescopic boom, a hydraulic lift cylinder and other parts, and the single-arm hoisting trolley is used for hoisting by controlling the lifting of the hydraulic cylinder, and the length of the telescopic boom can be adjusted according to the weight of a member to be hoisted. However, the device is provided with the hydraulic oil cylinder, the telescopic suspension arm is positioned at the front lifting section, the structure is complex, the telescopic operation of the suspension arm is troublesome, and the suspension arm needs a balancing weight, so that the use is inconvenient, and certain safety risk exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light single armed dolly for shaped steel spare hoist and mount to solve above-mentioned problem.

In order to realize the above-mentioned purpose, the utility model discloses a light single armed dolly for shaped steel spare hoist and mount, including main davit, digging arm, frame, wheel pair and hoist, the wheel pair is installed the below of frame, main davit is installed the top of frame, the hoist is installed the one end of main davit, the digging arm retractable is pegged graft in the inner chamber of the main davit other end, be provided with on the hoist and be used for pressing from both sides tightly the tongs of shaped steel spare.

The movable arm and the main suspension arm are connected in a limiting mode through the pin shafts inserted into the pin holes, and the pin shafts are tied to the main suspension arm through thin ropes.

Furthermore, the other end of the main suspension arm is provided with a first handle perpendicular to the main suspension arm, and the end of the movable arm is provided with a second handle perpendicular to the movable arm.

Furthermore, both ends of the first handle and the second handle are provided with U-shaped bent parts.

Further, the frame comprises a frame upright post, a front diagonal brace, a rear diagonal brace, a left diagonal brace and a right diagonal brace, the wheel pair comprises a wheel shaft and wheels arranged at two ends of the wheel shaft, the upper end of the front diagonal brace is fixedly connected with one end of the main suspension arm, the lower end of the front diagonal brace is fixedly connected with the frame upright post, the upper end of the rear diagonal brace is fixedly connected with the other end of the main suspension arm, the lower end of the rear diagonal brace is fixedly connected with the frame upright post, the upper end of the left diagonal brace is fixedly connected with one side of the frame upright post, the lower end of the left diagonal brace is fixedly connected with the wheel shaft, the upper end of the right diagonal brace is fixedly connected with the other side of the frame upright post, the lower end of the right diagonal brace is fixedly connected with.

Furthermore, the bottom end of the frame upright column is connected with the wheel shaft through a hoop, and a rubber gasket is arranged at the contact part of the hoop and the wheel shaft.

The lifting device is characterized by further comprising an ear plate and a lifting chain, wherein the ear plate is fixedly connected to the lower side of one end of the main lifting arm, the upper end of the lifting chain is connected with the ear plate through a shackle, and the lower end of the lifting chain is connected with the lifting clamp through a shackle.

Furthermore, a pulley seat is arranged at the bottom of the tail end of the main suspension arm, and a fixed pulley for balancing weight and traction is installed on the pulley seat.

Compared with the prior art, the utility model has the advantages of:

the utility model adopts the inverted triangle frame, the frame is connected with the wheel shaft by the detachable hoop, the structure and the structure are simple, the integral stability is good, and the manufacture, the transportation and the assembly are easy; combine together through main davit and digging arm, realize the flexible function of davit, can adjust suitable arm of force length according to the weight of waiting to hang the component to reduce the required effort of jack-up, adapt to the heavy demand of hanging of difference, and do not need the counter weight under general condition, the structure is light and handy, and it is nimble convenient to use, and low cost alone can realize whole hoist and mount operation, satisfies the hoist and mount or the transportation operation demand of conventional small-size steel member.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is an axial view of a steel profile disclosed in a preferred embodiment of the present invention;

fig. 2 is an axis measuring and indicating diagram of the portable single-arm trolley for hoisting the section steel part, which is disclosed by the preferred embodiment of the invention.

Illustration of the drawings:

1. a main boom; 2. a movable arm; 3. a frame; 4. a wheel set; 5. a spreader; 6. a pin shaft; 7. an ear plate; 8. a first handle; 9. a pulley seat; 10. a fixed pulley; 11. a pin hole; 12. a second handle; 13. a frame upright; 14. a front diagonal brace rod; 15. a rear diagonal brace rod; 16. a left diagonal brace; 17. a right diagonal brace; 18. a stiffening plate; 19. a wheel; 20. a wheel axle; 21. hooping; 22. A chain is hung; 23. a hanging tong.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1-2, the utility model discloses a light single armed dolly for shaped steel spare hoist and mount, shaped steel spare includes main davit 1, digging arm 2, frame 3, wheel pair 4 and hoist 5, wheel pair 4 installs the below at frame 3, main davit 1 is installed in the top of frame 3, hoist 5 installs the one end at main davit 1, digging arm 2 retractable pegs graft in the inner chamber of the main davit 1 other end, thereby, can be according to waiting to hang the length that digging arm 2 stretches out main davit 1 of weight regulation shaped steel spare, be provided with on the hoist 5 and be used for pressing from both sides the tong 23 of tight shaped steel spare, main davit 1's one end is provided with otic placode 7 and sling 22, otic placode 7 adopts the preparation of the steel sheet of 8mm ~ 10mm thick, the upper end of sling 22 is connected with otic placode 7 through breaking out, the lower extreme is connected with tong 23 through breaking out. The hanging tongs 23 comprises a tong tongue and a tong hook, the tong tongue and the tong hook are connected through a hanging tong pin shaft, the tong tongue can rotate around the hanging tong pin shaft, and insections are arranged at the contact parts of the tong tongue and the tong hook and a section steel flange plate, so that a section steel to be hung is clamped and prevented from falling off. In the embodiment, the main boom 1 is made of a square hollow steel pipe with the thickness of 60 multiplied by 4mm, the length of a front hoisting section is 120cm, the length of a tail balance section is 240cm, the movable arm 2 is made of a square hollow steel pipe with the thickness of 50 multiplied by 5mm, the total length of the movable arm 2 is 200cm, the length change range of the movable arm 2 extending out of the main boom 1 is 20 cm-160 cm, the square hollow steel pipe can be adjusted to stretch in a sliding mode, and meanwhile deflection can be prevented through the nested connection of square inner cavities.

In this embodiment, in order to realize the limiting fixation after the adjustment of the movable arm 2, the movable arm 2 further comprises a pin shaft 6, the movable arm 2 and the main boom 1 are provided with a plurality of corresponding pin holes 11, the distance between the pin holes 11 is 20cm, the diameter of the pin shaft 6 is 10mm to 16mm, the movable arm 2 and the main boom 1 are in limiting connection through the pin shaft 6 inserted into the pin holes 11, and the pin shaft 6 is tied to the main boom 1 by a thin rope. For facilitating the force application operation, the other end of the main boom 1 is provided with a first handle 8 perpendicular to the main boom 1, and the end of the movable arm 2 is provided with a second handle 12 perpendicular to the movable arm 2. Meanwhile, both ends of the first handle 8 and the second handle 12 are provided with U-shaped bent portions, that is, the ends of the first handle 8 and the second handle 12 are bent downward and toward the center, thereby preventing the ends from being stabbed or scratched.

In this embodiment, the frame 3 includes a frame upright 13, a front diagonal brace 14, a rear diagonal brace 15, a left diagonal brace 16 and a right diagonal brace 17, the frame upright 13, the front diagonal brace 14 and the rear diagonal brace 15 form an inverted triangle frame, the left diagonal brace 16 and the right diagonal brace 17 form a triangle support, the wheel pair 4 includes a wheel axle 20 and wheels 19 disposed at two ends of the wheel axle 20, the upper end of the front diagonal brace 14 is fixedly connected with one end of the main suspension arm 1, the lower end is fixedly connected with the frame upright 13, the upper end of the rear diagonal brace 15 is fixedly connected with the other end of the main suspension arm 1, the lower end is fixedly connected with the frame upright 13, the upper end of the left diagonal brace 16 is fixedly connected with one side of the frame upright 13, the lower end is fixedly connected with the wheel axle 20, the upper end of the right diagonal brace 17 is fixedly connected with the other side of the frame upright 13, the lower end is fixedly connected with the wheel axle 20, a stiffening plate 18 is disposed at a connection position of the frame upright, the front diagonal brace 14 is a square hollow steel pipe with the thickness of 30 multiplied by 2.5mm, and the rear diagonal brace 15 is a square hollow steel pipe with the thickness of 50 multiplied by 4 mm. The stiffening plate 18 is made of a steel plate with the thickness of 6 mm-8 mm, the lower end of the frame upright column 13 is connected with the wheel shaft 20, and the first handle 8, the second handle 12, the left inclined stay bar 16 and the right inclined stay bar 17 are all made of round steel with the diameter phi of 22 mm.

In this embodiment, the bottom end of the frame pillar 13 is connected to the wheel axle 20 by using the hoop 21, and a rubber gasket is disposed at a contact position between the hoop 21 and the wheel axle 20.

In the embodiment, in order to realize labor-saving operation during hoisting, the pulley seat 9 is arranged at the bottom of the tail end of the main boom 1, the fixed pulley 10 for counterweight and traction is installed on the pulley seat 9, and the diameter of the fixed pulley 10 is 50 mm-75 mm.

The utility model discloses a use method does:

1. firstly, the main suspension arm 1, the frame 3, the wheel pair 4, the lifting appliance 5 and other parts of the single-arm trolley are assembled preliminarily, and the weight of a single steel part to be lifted is estimated according to the field conditions, so that the proper extension length of the movable arm 2 is determined;

2. inserting the movable arm 2 into the corresponding position in the main suspension arm 1 from the tail end of the main suspension arm 1 to align the pin holes 11, and performing limiting and fixing through the pin shaft 6;

3. pressing down the hoisting end of the single-arm trolley, and clamping the steel part to be hung into the hanging tongs 23;

4. and (4) checking the connection condition of each part, operating the trolley through the first handle 8 or the second handle 12 after safety is confirmed, hoisting the section steel, and transporting the section steel to a required position for subsequent operation.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a light single armed dolly for shaped steel spare hoist and mount, its characterized in that, includes main davit (1), digging arm (2), frame (3), wheel pair (4) and hoist (5), wheel pair (4) are installed the below of frame (3), install main davit (1) the top of frame (3), install hoist (5) the one end of main davit (1), digging arm (2) retractable is pegged graft in the inner chamber of main davit (1) other end, be provided with on hoist (5) and be used for pressing from both sides tightly hanging tongs (23) of shaped steel spare.

2. The portable single-arm trolley for hoisting the section steel parts according to claim 1, further comprising a pin shaft (6), wherein a plurality of corresponding pin holes (11) are formed in the movable arm (2) and the main suspension arm (1), and the movable arm (2) and the main suspension arm (1) are in limited connection through the pin shaft (6) inserted into the pin holes (11).

3. The portable single-armed trolley for hoisting section steel parts according to claim 1, characterized in that the other end of the main boom (1) is provided with a first handle (8) perpendicular to the main boom (1), and the end of the movable arm (2) is provided with a second handle (12) perpendicular to the movable arm (2).

4. The portable single-arm trolley for hoisting section steel parts according to claim 3, wherein both ends of the first handle (8) and the second handle (12) are provided with U-shaped bent parts.

5. The portable single-armed trolley for hoisting section steel parts according to any one of claims 1 to 4, characterized in that the frame (3) comprises a frame upright (13), a front diagonal brace (14), a rear diagonal brace (15), a left diagonal brace (16) and a right diagonal brace (17), the wheel pair (4) comprises a wheel shaft (20) and wheels (19) arranged at two ends of the wheel shaft (20), the upper end of the front diagonal brace (14) is fixedly connected with one end of the main boom (1), the lower end is fixedly connected with the frame upright (13), the upper end of the rear diagonal brace (15) is fixedly connected with the other end of the main boom (1), the lower end is fixedly connected with the frame upright (13), the upper end of the left diagonal brace (16) is fixedly connected with one side of the frame upright (13), the lower end is fixedly connected with the wheel shaft (20), the upper end of the right diagonal brace (17) is fixedly connected with the other side of the frame upright (13), the lower end of the frame upright post is fixedly connected with the wheel shaft (20), and a stiffening plate (18) is arranged at the connecting part of the upper end of the frame upright post (13) and the main suspension arm (1).

6. The portable single-arm trolley for hoisting the steel sections as claimed in claim 5, wherein the bottom ends of the frame columns (13) are connected with the wheel shafts (20) through anchor ears (21), and rubber gaskets are arranged at the contact parts of the anchor ears (21) and the wheel shafts (20).

7. The portable single-arm trolley for hoisting the section steel parts according to any one of claims 1 to 4, further comprising an ear plate (7) and a suspension chain (22), wherein the ear plate (7) is fixedly connected to the lower side of one end of the main boom (1), the upper end of the suspension chain (22) is connected with the ear plate (7) through a shackle, and the lower end of the suspension chain is connected with the hanging tongs (23) through a shackle.

8. The portable single-arm trolley for hoisting the section steel parts according to any one of claims 1 to 4, wherein a pulley seat (9) is arranged at the bottom of the tail end of the main boom (1), and a fixed pulley (10) for counterweight and traction is installed on the pulley seat (9).