CN220950980U

CN220950980U - Small crane

Info

Publication number: CN220950980U
Application number: CN202323168537.2U
Authority: CN
Inventors: 姚剑; 汤晓岚; 姚正良; 屠祥根; 王伟明
Original assignee: Pinghu Tongli Machinery Co ltd
Current assignee: Pinghu Tongli Machinery Co ltd
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-05-14
Anticipated expiration: 2033-11-23

Abstract

The utility model provides a small crane which comprises a base, a crane body and a V-shaped fixing frame, wherein the top of the base is fixedly connected with the bottom of the crane body, one end of the base is fixedly connected with the fixing frame, two automatic sliding rails are arranged at the top of the fixing frame and fixedly connected with the fixing frame, an adjustable first lifting rod is arranged between the automatic sliding rails and the base, one end of the first lifting rod is fixedly connected with the fixing frame, and a second lifting rod is arranged at the upper part of the automatic sliding rails. The first lifting rod is connected and fixed with one side of the protective net, the second lifting rod is connected and fixed with the other side of the protective net, and the bottom of the first lifting rod is fixed with the fixed frame and slides on the automatic sliding rail, so that the protective net can realize two states of unfolding and folding, and the protective net can protect the lifted weight when in an unfolding state.

Description

Small crane

Technical Field

The utility model relates to a crane, in particular to a small crane, and belongs to the technical field of machinery.

Background

The small crane is a small lifting device for lifting, carrying and installing in a narrow and limited space. It is typically of a small size and lightweight design to accommodate the special requirements of limited space. Small cranes are usually driven by electric or hydraulic systems with a certain lifting capacity and height adjustment. These cranes are commonly used in the field of construction sites, workshops, warehouses, shops, finishing, maintenance and installation, etc., to perform some relatively small-scale lifting tasks, such as lifting and handling heavy objects, installing equipment or repair work. The small crane has the characteristics of flexibility, high efficiency, strong operability and the like, can provide a convenient and quick solution, reduces labor intensity and improves working efficiency.

The Chinese patent with the bulletin number of CN111285271A discloses a small crane convenient to move, which comprises a shell component and a connecting component, wherein the shell component comprises a small crane body, a containing box, a vertical rod, a suspension arm and a fixing rod, the vertical rod is positioned on the upper surface of the right end of the small crane body and is fixedly connected with the small crane body, the containing box is positioned on the outer side wall of the vertical rod and is fixedly welded with the vertical rod, the connecting part of the small crane body and the vertical rod is provided with the fixing rod, and one end of the fixing rod is fixedly connected with the vertical rod; the handle is connected with the boom rotation, and the staff can be in the operation of safe position operation handle messenger boom rotation construction operation, reaches the effect of eliminating the potential safety hazard, is provided with the containing box in the pole setting, and the weight of containing box can make small-size loop wheel machine body during operation keep stable, and the staff also can accomodate external part or external instrument in the containing box, makes things convenient for staff construction operation. However, when the crane is operated, the personnel need to wear personal protective equipment to protect the crane, and the situation that the heavy object lifted by the crane falls down needs to be alerted.

Disclosure of utility model

Based on the above background, an object of the present utility model is to provide a small crane which can prevent damage caused by dropping of a lifting weight and can further protect surrounding workers, and solve the problems described in the background art.

In order to achieve the above object, the present utility model provides the following technical solutions:

The utility model provides a small-size loop wheel machine, includes the mount of base, loop wheel machine body and V type, base top and loop wheel machine body bottom fixed connection, base one end and mount fixed connection, the top of mount is provided with two automatic slide rails, two automatic slide rail and mount fixed connection, be provided with adjustable first lifter between automatic slide rail and the base, the one end and the mount fixed connection of first lifter, the upper portion of automatic slide rail is provided with the second lifter, second lifter and automatic slide rail sliding fit, first lifter and second lifter top cover are equipped with trapezoidal protection network, the protection network all can dismantle fixed connection with first lifter and second lifter.

The base and the mount provide a stable platform for the loop wheel machine body, and first lifter is connected fixedly with one side of protection network, and the second lifter is connected fixedly for the opposite side of protection network, because first lifter bottom is fixed with the mount, and the second lifter bottom slides on automatic slide rail to can make the protection network realize expanding and packing up two kinds of states, wherein, first lifter and second lifter all can adjust, make its length change, thereby can indirectly adjust the height of protection network.

Preferably, the top corner part of the protection net is a connecting part, and a shock absorber is arranged at the bottom of the connecting part and fixedly connected with the connecting part.

The shock absorber is arranged at the connecting part of the protective net, when a heavy object accidentally falls off to the protective net, the shock absorber can absorb and lighten vibration and impact force generated in the process of the shock absorber, so that the overall stability and safety are improved, and the working efficiency and the reliability are improved.

Preferably, the first lifting rod and the second lifting rod comprise at least two sections of lifting pipes, the two sections of lifting pipes are respectively a first lifting pipe and a second lifting pipe, the first lifting pipe is sleeved outside the second lifting pipe, and the first lifting pipe and the second lifting pipe are connected through threaded fit.

The first lifting pipe and the second lifting pipe are connected through screw thread fit, and the heights of the first lifting rod and the second lifting rod can be conveniently adjusted through rotation, so that the requirements of different working scenes can be met.

Preferably, the bottom of the shock absorber is provided with a first connecting piece, the first connecting piece is rotationally connected with the shock absorber, the top of the first lifting tube is provided with a second connecting piece, the second connecting piece is rotationally connected with the first lifting tube, and the second connecting piece is matched with the first connecting piece.

The connection of the damper and the first lifting tube can be realized by the connection of the first connecting piece and the second connecting piece.

Preferably, the protective net is provided with a plurality of frameworks which can be laminated, and the frameworks are fixedly connected with the protective net.

The framework can facilitate the protection net to be folded and unfolded along the specific track, so that the protection net is tidier in the folded and unfolded state.

Preferably, a limiting part is arranged at the top of the second lifting tube.

The limiting part can prevent the first lifting tube from being separated from the outer part of the second lifting tube.

Preferably, the surface of the second lifting tube is provided with graduation marks.

The graduation marks may facilitate calculation of the length of the first and second elevator tubes extension.

Preferably, the surface of the first lifting tube is provided with a pair of handles, and the handles are fixedly connected with the first lifting tube.

The handle can facilitate the application of force by an operator to rotationally control the first riser.

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

According to the small crane, the base and the fixing frame are utilized to provide a stable platform for the crane body, the first lifting rod is fixedly connected with one side of the protective net, the second lifting rod is fixedly connected with the other side of the protective net, and the bottom of the first lifting rod is fixedly connected with the fixing frame and slides on the automatic sliding rail, so that the protective net can realize two states of unfolding and folding, and the protective net can play a role in protecting lifted heavy objects when in an unfolded state.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of area A of FIG. 1;

FIG. 3 is a schematic view of the structure of the first and second elevator tubes of the present utility model;

FIG. 4 is a schematic diagram of the structure of the protection net of the present utility model;

Fig. 5 is an enlarged schematic view of region B in fig. 1.

In the figure: 1. a base; 2. a crane body; 3. a fixing frame; 4. an automatic slide rail; 5. a first lifting rod; 6. a second lifting rod; 7. a protective net; 8. a connection part; 9. a damper; 10. a first lifting tube; 11. a second lifting tube; 12. a first connector; 13. a second connector; 14. a skeleton; 15. a limit part; 16. scale marks; 17. a handle.

Detailed Description

The technical scheme of the utility model is further specifically described below through specific embodiments and with reference to the accompanying drawings. It should be understood that the practice of the utility model is not limited to the following examples, but is intended to be within the scope of the utility model in any form and/or modification thereof.

In the present utility model, unless otherwise specified, all parts and percentages are by weight, and the equipment, materials, etc. used are commercially available or are conventional in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components and devices in the following examples are, unless otherwise indicated, all those components and devices known to those skilled in the art, and their structures and principles are known to those skilled in the art from technical manuals or by routine experimentation.

In the following detailed description of embodiments of the utility model, reference is made to the accompanying drawings, in which, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. However, one or more embodiments may be practiced by one of ordinary skill in the art without these specific details.

As shown in fig. 1 and 2, a small-sized crane comprises a base 1, a crane body 2 and a V-shaped fixing frame 3, wherein the top of the base 1 is fixedly connected with the bottom of the crane body 2, one end of the base 1 is fixedly connected with the fixing frame 3, two automatic sliding rails 4 are arranged at the top of the fixing frame 3, the two automatic sliding rails 4 are fixedly connected with the fixing frame 3, an adjustable first lifting rod 5 is arranged between the automatic sliding rails 4 and the base 1, and one end of the first lifting rod 5 is fixedly connected with the fixing frame 3.

As shown in fig. 3, the second lifting rod 6 is disposed on the upper portion of the automatic sliding rail 4, the second lifting rod 6 is in sliding fit with the automatic sliding rail 4, the first lifting rod 5 and the second lifting rod 6 each comprise at least two sections of lifting pipes, the two sections of lifting pipes are a first lifting pipe 10 and a second lifting pipe 11 respectively, the first lifting pipe 10 is sleeved outside the second lifting pipe 11, and the first lifting pipe 10 is connected with the second lifting pipe 11 through threaded fit. The first lifting pipe 10 and the second lifting pipe 11 are connected through screw thread fit, and the heights of the first lifting rod 5 and the second lifting rod 6 can be conveniently adjusted through rotation so as to adapt to the requirements of different working scenes. The surface of the first lifting tube 10 is provided with a pair of handles 17, and the handles 17 are fixedly connected with the first lifting tube 10. The handle 17 may facilitate the application of force by an operator to control the rotation of the first elevator tube 10. The second elevator tube 11 is provided with graduation marks 16 on its surface. The graduation marks 16 may facilitate calculation of the extended length of the first and second risers 10, 11. The top of the second riser 11 is provided with a limit part 15. The stopper 15 prevents the first elevator tube 10 from being separated from the outside of the second elevator tube 11.

As shown in fig. 4, the top parts of the first lifting rod 5 and the second lifting rod 6 are covered with a trapezoid protection net 7, the protection net 7 is provided with a plurality of framework 14 which can be laminated, and the framework 14 is fixedly connected with the protection net 7. The framework 14 can facilitate the retraction and deployment of the protective net 7 along a specific track, so that the protective net 7 is tidier in the retraction and deployment state. The protective screening 7 is detachably and fixedly connected with the first lifting rod 5 and the second lifting rod 6.

The base 1 and the fixing frame 3 provide a stable platform for the crane body 2, the first lifting rod 5 is fixedly connected with one side of the protective net 7, the second lifting rod 6 is fixedly connected with the other side of the protective net 7, and the bottom of the first lifting rod 5 is fixedly connected with the fixing frame 3, so that the protective net 7 can be unfolded and folded in two states by sliding the bottom of the second lifting rod 6 on the automatic sliding rail 4, wherein the lengths of the first lifting rod 5 and the second lifting rod 6 are all adjustable, the lengths of the first lifting rod and the second lifting rod 6 are changed, and the height of the protective net 7 can be indirectly adjusted.

As shown in fig. 5, the top corner portion of the protection net 7 is a connecting portion 8, a shock absorber 9 is arranged at the bottom of the connecting portion 8, and the shock absorber 9 is fixedly connected with the connecting portion 8. The shock absorber 9 is arranged at the connecting part 8 of the protective screen 7, when a heavy object accidentally falls off to the protective screen 7, the shock absorber 9 can absorb and lighten the vibration and impact force generated in the process of the shock absorber, so that the overall stability and safety are improved, and the working efficiency and the reliability are improved. The shock absorber 9 bottom is provided with first connecting piece 12, and first connecting piece 12 rotates with shock absorber 9 to be connected, and first lifter 10 top is provided with second connecting piece 13, and second connecting piece 13 rotates with first lifter 10 to be connected, and second connecting piece 13 matches with first connecting piece 12. The connection of the damper 9 to the first lifting tube 10 is achieved by the connection of the first connection piece 12 and the second connection piece 13.

The operation steps of the small crane provided by the utility model are as follows:

Before the crane is used, the first lifting rod 5 and the second lifting rod 6 are positioned at positions adjacent to one end of the base 1, the first lifting rod 5 and the second lifting rod 6 are stretched, the steps are prepared, after the preparation is finished, the crane body 2 is started to lift a heavy object, when the heavy object is lifted to the air, the automatic sliding rail 4 is started, the automatic sliding rail 4 drives the second lifting rod 6 to move to one end of the fixing frame 3 far away from the base 1, at the moment, the protective screen 7 is stretched and unfolded by the first lifting rod 5 and the second lifting rod 6 and positioned at the lower part of the heavy object, at the moment, the crane is pushed to transfer the heavy object, and the protective screen 7 plays a role in protecting the lifted heavy object.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. A small crane, characterized in that: this small-size loop wheel machine includes mount (1), loop wheel machine body (2) and V type mount (3), mount (1) top and loop wheel machine body (2) bottom fixed connection, mount (1) one end and mount (3) fixed connection, the top of mount (3) is provided with two automatic slide rail (4), two automatic slide rail (4) and mount (3) fixed connection, be provided with adjustable first lifter (5) between automatic slide rail (4) and mount (1), the one end and the mount (3) fixed connection of first lifter (5), the upper portion of automatic slide rail (4) is provided with second lifter (6), second lifter (6) and automatic slide rail (4) sliding fit, first lifter (5) and second lifter (6) top cover are equipped with trapezoidal protection network (7), protection network (7) all can dismantle fixed connection with first lifter (5) and second lifter (6).

2. A miniature crane according to claim 1, characterized in that: the top angle part of the protection net (7) is a connecting part (8), a shock absorber (9) is arranged at the bottom of the connecting part (8), and the shock absorber (9) is fixedly connected with the connecting part (8).

3. A miniature crane according to claim 2, characterized in that: the first lifting rod (5) and the second lifting rod (6) comprise at least two sections of lifting pipes, the two sections of lifting pipes are a first lifting pipe (10) and a second lifting pipe (11) respectively, the first lifting pipe (10) is sleeved outside the second lifting pipe (11), and the first lifting pipe (10) is connected with the second lifting pipe (11) through threaded fit.

4. A miniature crane according to claim 3, characterized in that: the shock absorber is characterized in that a first connecting piece (12) is arranged at the bottom of the shock absorber (9), the first connecting piece (12) is rotationally connected with the shock absorber (9), a second connecting piece (13) is arranged at the top of the first lifting tube (10), the second connecting piece (13) is rotationally connected with the first lifting tube (10), and the second connecting piece (13) is matched with the first connecting piece (12).

5. A miniature crane according to claim 3, characterized in that: the protective net (7) is provided with a plurality of framework (14) which can be laminated, and the framework (14) is fixedly connected with the protective net (7).

6. A miniature crane according to claim 3, characterized in that: and a limiting part (15) is arranged at the top of the second lifting tube (11).

7. A miniature crane according to claim 3, characterized in that: and graduation lines (16) are arranged on the surface of the second lifting tube (11).

8. The small crane as claimed in claim 4, wherein: the surface of the first lifting tube (10) is provided with a pair of handles (17), and the handles (17) are fixedly connected with the first lifting tube (10).