CN211895788U - Portable portable lift crane - Google Patents

Abstract

The embodiment of the present application discloses a movable portable lifting crane, which includes: a chassis platform, a support rod and a boom; the support rod is arranged on the chassis platform; a rod top platform is fixed on the top of the support rod; the rod top platform is rotatably connected to the boom ; An adjustable pull rod for adjusting the lifting height and angle of the boom is arranged between the boom and the top platform; one end of the adjustable pull rod is hinged with the boom, and the other end is detachably connected to the top platform; the bottom of the chassis platform is provided with wheels . The utility model occupies less space, is convenient to carry, can adjust the hoisting height, is more convenient to operate, and effectively solves the problem of hoisting the 35kV voltage transformer and the current transformer in the 10KV cabinet.

Description

A mobile portable lifting crane

technical field

The present application relates to the technical field of equipment hoisting, and in particular, to a movable portable lifting crane.

Background technique

In daily maintenance work, substation maintenance personnel need to replace various bulky electrical equipment, such as replacing 35kV voltage transformers, 10KV current transformers in cabinets, 35kV arresters, etc. At present, the replacement of these electrical equipment is generally carried out manually or by large cranes. However, the manual handling of these equipment is very risky, and it increases the difficulty of work and reduces work efficiency, and the use of conventional cranes needs to consider the working safety distance, and these equipments are located in a narrow environment, and the safety distance is difficult to meet the requirements, and conventional cranes The hoisting cost is high, and for this reason, the utility model proposes a movable portable hoisting crane.

Utility model content

The embodiment of the present application provides a movable portable lifting crane, which makes the occupied space small, is convenient to carry, can adjust the lifting height, and is more convenient to operate.

In view of this, the present application provides a mobile portable lifting crane, including: a chassis platform, a support rod and a boom;

the support rod is arranged on the chassis platform;

A rod top platform is fixed on the top of the support rod;

The pole top platform is rotatably connected with the boom;

An adjustable pull rod for adjusting the lifting height and angle of the boom is arranged between the boom and the pole top platform;

One end of the adjustable pull rod is hinged with the boom, and the other end is detachably connected with the rod top platform;

Wheels are arranged at the bottom of the chassis platform.

Optionally, the lower end of the support rod is fixedly connected to the chassis platform.

Optionally, the chassis platform is provided with a first diagonal strut for supporting and reinforcing;

One end of the first diagonal strut is fixedly connected with the chassis platform, and the other end is fixedly connected with one side of the support rod.

Optionally, a bottom rod is provided at the bottom of the support rod;

The bottom rod is fixed on the chassis platform, and the support rod is rotatably connected with the bottom rod.

Optionally, the chassis platform is provided with a second diagonal strut for supporting and reinforcing;

One end of the second diagonal strut is fixedly connected with the chassis platform, and the other end is fixedly connected with one side of the bottom rod.

Optionally, adjustable legs for fixing the crane on the ground are arranged around the chassis platform.

Optionally, a hook is provided on the boom;

An electric hoist is fixed at the bottom of the pole top platform;

The electric hoist is connected to the hook through a wire rope.

Optionally, the upper end of the boom is provided with a first certain pulley;

The rear side of the pole top platform is provided with a second fixed pulley;

A third fixed pulley is arranged at a position close to the bottom of the support rod;

One end of the wire rope is connected with the hook, and the other end passes through the first fixed pulley, the second fixed pulley and the third fixed pulley in sequence, and is connected with the electric hoist.

Optionally, the boom is rotatably connected to the pole top platform through a joint shaft.

Optionally, the wheels are universal wheels.

It can be seen from the above technical solutions that the embodiment of the present application has the following advantages: including a chassis platform, a support rod and a boom, the support rod is arranged on the chassis platform, the top of the support rod is fixed with a rod top platform, and the rod top platform and the boom rotate Connection, between the boom and the pole top platform, there is an adjustable pull rod for adjusting the lifting height and angle of the boom, and the lifting height and angle of the boom can be adjusted by adjusting the length of the adjustable pull rod, which is convenient to use; One end is hinged with the boom, and the other end is detachably connected to the pole top platform. When not in use, the adjustable pull rod can be removed from the pole top platform, and then the boom can be folded onto the support rod, occupying a small space; the bottom of the chassis platform is set It has wheels and is easy to move, which effectively solves the problem of hoisting and transporting bulky equipment in narrow spaces in substations.

Description of drawings

Fig. 1 is a kind of structural schematic diagram of the movable portable lifting crane in the embodiment of the application;

2 is a schematic structural diagram of the folded movable portable lifting crane in the embodiment of the application;

3 is another schematic structural diagram of the movable portable lifting crane in the embodiment of the application;

Among them, the reference numerals are:

1- Chassis platform, 2- Support rod, 3- Boom, 4- Rod top platform, 5- Adjustable pull rod, 6- Hook, 7- Electric hoist, 8- Steel wire rope, 9- Joint shaft, 10- Universal direction Wheel, 11-first diagonal strut, 12-second diagonal strut, 13-bottom rod, 21-third fixed pulley, 31-first fixed pulley, 41-second fixed pulley.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations on this application. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

The present application provides an embodiment of a movable portable lifting crane, please refer to FIG. 1 and FIG. 2 for details.

The movable portable lifting crane in this embodiment includes: a chassis platform 1, a support rod 2 and a boom 3, the support rod 2 is arranged on the chassis platform 1, and a rod top platform 4 is fixed on the top of the support rod 2, and the rod top platform 4 is connected with The boom 3 is rotatably connected, and an adjustable pull rod 5 for adjusting the lifting height and angle of the boom 3 is arranged between the boom 3 and the pole top platform 4. One end of the adjustable pull rod 5 is hinged with the boom 3, and the other end is connected with the top of the rod. The platform 4 is detachably connected, and the bottom of the chassis platform 1 is provided with wheels.

It should be noted that: it includes a chassis platform 1, a support rod 2 and a boom 3, the support rod 2 is arranged on the chassis platform 1, a rod top platform 4 is fixed on the top of the support rod 2, and the rod top platform 4 is rotatably connected with the boom 3, An adjustable pull rod 5 for adjusting the lifting height and angle of the boom 3 is provided between the boom 3 and the rod top platform 4, and the lifting height and angle of the boom 3 can be adjusted by adjusting the length of the adjustable pull rod 5, which is convenient to use; One end of the adjustable pull rod 5 is hinged with the boom 3 , and the other end is detachably connected with the rod top platform 4 . As shown in Figure 2, when not in use, the adjustable pull rod 5 can be disassembled from the rod top platform 4, and then the boom 3 can be folded onto the support rod 2, which occupies a small space; the bottom of the chassis platform 1 is provided with wheels, which is convenient to move It effectively solves the problem of lifting heavy equipment in a narrow space of the substation, which is safe and efficient, and at the same time, the equipment investment cost is low and the scope of application is wide.

The above is the first embodiment of a movable portable lifting crane provided by the embodiment of the application, and the following is the second embodiment of a movable portable lifting crane provided by the embodiment of the application, please refer to FIG. 1 to FIG. 3 for details.

The movable portable lifting crane in this embodiment includes: a chassis platform 1, a support rod 2 and a boom 3, the support rod 2 is arranged on the chassis platform 1, and a rod top platform 4 is fixed on the top of the support rod 2, and the rod top platform 4 is connected with The boom 3 is rotatably connected, and an adjustable pull rod 5 for adjusting the lifting height and angle of the boom 3 is arranged between the boom 3 and the pole top platform 4. One end of the adjustable pull rod 5 is hinged with the boom 3, and the other end is connected with the top of the rod. The platform 4 is detachably connected, and the bottom of the chassis platform 1 is provided with wheels.

It can be understood that the lower end of the support rod 2 can be fixedly connected to the chassis platform 1 directly, or indirectly fixedly connected to the chassis platform 1 through the bottom rod 13 .

In the first case, as shown in FIG. 1 , the lower end of the support rod 2 is fixedly connected to the chassis platform 1 . The chassis platform 1 is provided with a first diagonal bracing rod 11 for supporting and reinforcing. One end of the first diagonal bracing rod 11 is fixedly connected to the chassis platform 1, and the other end is fixedly connected to one side of the supporting rod 2. A diagonal strut 11 makes the crane more stable and reliable after lifting the article. Specifically, there may be multiple first diagonal struts 11 , and the plurality of first diagonal struts 11 are evenly distributed around the support rod 2 .

In the second case, as shown in FIG. 3 , a bottom rod 13 is provided at the bottom of the support rod 2 , the bottom rod 13 is fixed on the chassis platform 1 , and the support rod 2 and the bottom rod 13 are rotatably connected. The chassis platform 1 is provided with a second diagonal bracing rod 12 for supporting and reinforcing. One end of the second diagonal bracing rod 12 is fixedly connected to the chassis platform 1, and the other end is fixedly connected to one side of the bottom rod 13. The two diagonal struts 12 make the crane more stable and reliable after lifting the article. Specifically, there may be multiple second diagonal struts 12 , and the plurality of second diagonal struts 12 are evenly distributed around the bottom bar 13 .

It should be noted that: the support rod 2 is rotatably connected to the bottom rod 13, and the rotation angle of the crane in the horizontal direction can be adjusted by rotating the support rod 2, which is more convenient to use.

The chassis platform 1 is provided with adjustable outriggers for fixing the crane on the ground. Specifically, the adjustable outrigger can be an adjustable lifting structure in which the screw rod and the nut cooperate. When the crane moves to a designated position, it can be adjusted manually. Adjust the height of the outriggers and engage the adjustable outriggers with the ground to achieve fixation.

It can be understood that, in order to ensure that the crane remains stable during the hoisting process, a counterweight can be added to the chassis platform 1, wherein the counterweight can be cement or iron.

A hook 6 is provided on the boom 3, and an electric hoist 7 is fixed at the bottom of the pole top platform 4. The electric hoist 7 is connected to the hook 6 through a wire rope 8, and the lifting of the hook 6 is controlled by the electric hoist 7, which can save manpower and improve efficiency.

Specifically, the upper end of the boom 3 is provided with a first fixed pulley 31, the rear side of the rod top platform 4 is provided with a second fixed pulley 41, the support rod 2 is provided with a third fixed pulley 21 near the bottom, and one end of the wire rope 8 It is connected with the hook 6 , and the other end passes through the first fixed pulley 31 , the second fixed pulley 41 and the third fixed pulley 21 in sequence, and is connected with the electric hoist 7 .

The boom 3 is rotatably connected with the pole top platform 4 through the joint shaft 9 . The wheel can be a universal wheel 10, which is more convenient to move.

It should be noted that the electrical equipment weighing 50kg-200kg in the substation has a small surrounding space, and the safety distance of using conventional cranes is not enough. Manual handling requires the coordination of several people, which is difficult and high-risk. The mobile portable lifting crane occupies a small space and is easy to carry. The lifting height and angle can be adjusted, and the maximum lifting height can reach 4 meters. In the process of lifting the equipment, it can meet the safety distance and avoid manual handling and injury. Therefore, it has a wide range of applications, simple structure and low investment cost.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions recorded in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the present application.

Claims (10)

1. A mobile portable lift crane, comprising: a chassis platform, a support rod and a suspension arm;

the supporting rod is arranged on the chassis platform;

a rod top platform is fixed at the top of the supporting rod;

the rod top platform is rotatably connected with the suspension arm;

an adjustable pull rod for adjusting the lifting height and angle of the suspension arm is arranged between the suspension arm and the rod top platform;

one end of the adjustable pull rod is hinged with the suspension arm, and the other end of the adjustable pull rod is detachably connected with the rod top platform;

wheels are arranged at the bottom of the chassis platform.

2. The mobile portable lift crane of claim 1 wherein the lower ends of said support rods are fixedly attached to said chassis platform.

3. The mobile portable lift crane of claim 2, wherein said chassis platform is provided with a first diagonal brace for supporting and reinforcing;

one end of the first inclined support rod is fixedly connected with the chassis platform, and the other end of the first inclined support rod is fixedly connected with one side of the support rod.

4. The mobile portable lift crane of claim 1, wherein the bottom of said support bar is provided with a bottom bar;

the bottom rod is fixed on the chassis platform, and the support rod is rotatably connected with the bottom rod.

5. The mobile portable lift crane of claim 4, wherein said chassis platform is provided with a second diagonal brace for supporting and reinforcing;

one end of the second inclined support rod is fixedly connected with the chassis platform, and the other end of the second inclined support rod is fixedly connected with one side of the bottom rod.

6. A mobile portable lift crane according to claim 1 wherein the chassis platform is provided with adjustable legs around it for securing the crane to the ground.

7. The mobile portable lift crane of claim 1, wherein said boom arm is provided with a hook;

an electric hoist is fixed at the bottom of the rod top platform;

the electric block is connected with the lifting hook through a steel wire rope.

8. The mobile portable lift crane of claim 7, wherein the upper end of said boom is provided with a first fixed sheave;

a second fixed pulley is arranged on the rear side of the rod top platform;

a third fixed pulley is arranged at the position of the supporting rod close to the bottom;

one end of the steel wire rope is connected with the lifting hook, and the other end of the steel wire rope sequentially passes through the first fixed pulley, the second fixed pulley and the third fixed pulley and is connected with the electric hoist.

9. The mobile portable lift crane of claim 1, wherein said boom is pivotally connected to said pole top platform by an articulated shaft.

10. The mobile portable lift crane of claim 1, wherein said wheels are universal wheels.

Images