CN215516390U

CN215516390U - Guardrail for mobile crane

Info

Publication number: CN215516390U
Application number: CN202120290762.5U
Authority: CN
Inventors: 丁宏刚; 郑洪权; 盛珍贵
Original assignee: Xuzhou Heavy Machinery Co Ltd
Current assignee: Xuzhou Heavy Machinery Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-01-14
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a guardrail for a mobile crane, which is characterized by comprising a protective door (1), a guardrail (2) and a base (3), wherein the top of the base (3) is movably connected with the guardrail (2), the protective door (1) is arranged on two sides of the guardrail (2), and the protective door (1) is movably connected with the guardrail (2); according to the utility model, the base is movably connected with the guardrail, and the guard gate is movably connected with the guardrail, so that the requirement of protection setting of crane personnel is met, and the guardrail and the guard gate can be folded when the crane is not used, thereby being beneficial to reducing the height of the protection device and avoiding the situation that the crane cannot be arranged on the vehicle due to the ultrahigh structure.

Description

Guardrail for mobile crane

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a guardrail for a mobile crane.

Background

The hoisting machine is a general name of a series of hoisting machines developed aiming at construction areas such as construction sites, factory building, bridge construction and the like.

The crane has the characteristic of complex component system structure, so the maintenance working condition is more frequent. Because the whole machine is large in size, personnel need certain safety protection in activities such as climbing walking, operation, maintenance and the like of the equipment.

At present, the height of the whole crane and the arrangement space of the crane are limited, the conventional protection device adopts a mode of setting a safety belt hanging point or an assembled protective guard, the risks of low safety, inconvenient operation, ultrahigh whole crane and the like exist in the using process, the operation and maintenance efficiency of personnel is influenced, and the product use experience of the personnel operation is also reduced.

Disclosure of Invention

The utility model aims to provide a guardrail for a mobile crane, which solves one of the defects caused by the prior art.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the guardrail for the mobile crane is characterized by comprising a protective door, a guardrail and a base, wherein the top of the base is movably connected with the guardrail, the protective door is arranged on two sides of the guardrail, and the protective door is movably connected with the guardrail.

Preferably, a first rotating mechanism is arranged between the guardrail and the guard door, the first rotating mechanism comprises a first connecting plate, a second connecting plate and a first fixed shaft, the first connecting plate is fixedly connected with the guard door, the second connecting plate is fixedly connected with the guardrail, one end of the first connecting plate is connected with the second connecting plate through the first fixed shaft pin, and the other end of the first connecting plate is movably connected with the second connecting plate.

Preferably, the guardrail for the mobile crane is characterized in that the first connecting plate and the second connecting plate are movably connected through a first spring pin.

Preferably, the guardrail for the mobile crane is characterized in that the first connecting plate is further provided with a limiting plate, the second connecting plate is provided with a limiting convex block, and the limiting plate and the limiting convex block are matched to limit the movement end point of the first connecting plate.

Preferably, a second rotating mechanism is arranged between the guardrail and the base, the second rotating mechanism comprises a third connecting plate and a fourth connecting plate, the third connecting plate is fixedly connected with the guardrail, the fourth connecting plate is fixedly connected with the base, one end of the third connecting plate is connected with the fourth connecting plate through a pin shaft, and the other end of the third connecting plate is detachably connected with the fourth connecting plate.

Preferably, the guardrail for the mobile crane is characterized in that the third connecting plate is provided with a groove, and the groove is connected with the fourth connecting plate in a sliding manner.

Preferably, the guardrail for mobile crane is characterized in that a limiting platform is arranged at the bottom end of the fourth connecting plate and used for limiting the movable lowest end of the third connecting plate.

According to the technical scheme, the embodiment of the utility model at least has the following effects: according to the utility model, the base is movably connected with the guardrail, and the guard gate is movably connected with the guardrail, so that the requirement of protection setting of crane personnel is met, and the guardrail and the guard gate can be folded when the crane is not used, thereby being beneficial to reducing the height of the protection device and avoiding the situation that the crane cannot be arranged on the vehicle due to the ultrahigh structure.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the area of FIG. 1A;

FIG. 3 is a partial enlarged view of the area of FIG. 1B;

wherein: 1-protective door, 2-guardrail, 3-base, 7-first rotating mechanism, 8-second rotating mechanism, 701-first connecting plate, 702-second connecting plate, 703-first fixed shaft, 704-first spring pin shaft, 705-limiting plate, 706-limiting lug, 801-third connecting plate, 802-fourth connecting plate, 803-groove, 804-limiting platform, 805-second fixed shaft and 806-second spring pin shaft.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Referring to fig. 1 to 3, the utility model discloses a guardrail for a mobile crane, which comprises a protective door 1, a guardrail 2 and a base 3, wherein the top of the base 3 is movably connected with the guardrail 2, the protective doors 1 are arranged on two sides of the guardrail 2, and the protective doors 1 are movably connected with the guardrail 2.

According to the utility model, the base is movably connected with the guardrail, and the guard gate is movably connected with the guardrail, so that the requirement of protection setting of crane personnel is met, and the guardrail and the guard gate can be folded when the crane is not used, thereby being beneficial to reducing the height of the protection device and avoiding the situation that the crane cannot be arranged on the vehicle due to the ultrahigh structure.

A first rotating mechanism 7 is arranged between the guardrail 2 and the protective door 1, the first rotating mechanism 7 is used for controlling the movement between the guardrail 2 and the protective door 1, the first rotating mechanism 7 comprises a first connecting plate 701, a second connecting plate 702 and a first fixing shaft 703, the first connecting plate 701 is fixedly connected with the protective door 1, the second connecting plate 702 is fixedly connected with the guardrail 2, please refer to fig. 2, one end of the first connecting plate 701 is connected with one end of the second connecting plate 702 through a first fixing shaft 703, the first connecting plate 701 can rotate around the first fixing shaft 703, a through hole a and a through hole b are arranged on the first rotating mechanism 7, when the first spring pin 704 is inserted into the through hole a, the protection door 1 is in an open state, and when the first connecting plate 701 rotates along the first fixing shaft 703 and the first spring pin 704 is inserted into the through hole b, the protection door 1 is in a folded state.

In order to facilitate the insertion of the first spring pin 704 into the through hole b after the first connecting plate 701 rotates, a limiting plate 705 is arranged on the first connecting plate 701, a limiting bump 706 matched with the limiting plate 705 is arranged on the second connecting plate 702, and the limiting plate 705 and the limiting bump 706 limit the final rotation position of the first connecting plate 701 and the insertion position of the first spring pin 704 into the through hole b.

Referring to fig. 1 and 3, a second rotating mechanism 8 is disposed between the guardrail 2 and the base 3, the second rotating mechanism 8 includes a third connecting plate 801 and a fourth connecting plate 802, the third connecting plate 801 is fixedly connected to the guardrail 2, the fourth connecting plate 802 is fixedly connected to the base 3, one end of the third connecting plate 801 is pin-connected to the fourth connecting plate 802 by a second fixing shaft 805, and the other end of the third connecting plate 801 is detachably connected to the fourth connecting plate 802 by a second spring pin 806.

The third connecting plate 801 is provided with a groove 803, the fourth connecting plate 802 is inserted into the groove 803, the fourth connecting plate 802 is connected with the groove 803 in a sliding manner, and the groove 803 is used for guiding the rotating track of the third connecting plate 801; the bottom end of the fourth connecting plate 802 is provided with a limiting platform 804, and the limiting platform 804 is used for limiting the final position of the third connecting plate 801.

As shown in fig. 3, when the second spring pin 806 is inserted into the through hole c, the guardrail 2 is in an open use state, and when the guardrail is not used, the third connecting plate 801 rotates around the second fixing shaft 805 to the upper end surface of the limiting platform 804, and the second spring pin 806 is inserted into the through hole d, and at this time, the guardrail 2 is in a folded state.

It will be appreciated by those skilled in the art that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the utility model are intended to be embraced therein.

Claims

1. The guardrail for the mobile crane is characterized by comprising a protective door (1), a guardrail (2) and a base (3), wherein the top of the base (3) is movably connected with the guardrail (2), the protective door (1) is arranged on two sides of the guardrail (2), and the protective door (1) is movably connected with the guardrail (2).

2. A guardrail for a mobile crane according to claim 1, wherein a first rotating mechanism (7) is arranged between the guardrail (2) and the guard door (1), the first rotating mechanism (7) comprises a first connecting plate (701), a second connecting plate (702) and a first fixed shaft (703), the first connecting plate (701) is fixedly connected with the guard door (1), the second connecting plate (702) is fixedly connected with the guardrail (2), one end of the first connecting plate (701) is pin-jointed with the second connecting plate (702) through the first fixed shaft (703), and the other end of the first connecting plate (701) is movably connected with the second connecting plate (702).

3. A guardrail for a mobile crane according to claim 2, characterized in that the first connecting plate (701) and the second connecting plate (702) are movably connected by a first spring pin (704).

4. A guardrail for a mobile crane according to claim 2, characterized in that the first connecting plate (701) is further provided with a limiting plate (705), the second connecting plate (702) is provided with a limiting projection (706), and the limiting plate (705) and the limiting projection (706) cooperate to limit the movement end point of the first connecting plate (701).

5. A guardrail for a mobile crane according to claim 1, characterized in that a second rotating mechanism (8) is arranged between the guardrail (2) and the base (3), the second rotating mechanism (8) comprises a third connecting plate (801) and a fourth connecting plate (802), the third connecting plate (801) is fixedly connected with the guardrail (2), the fourth connecting plate (802) is fixedly connected with the base (3), one end of the third connecting plate (801) is pin-jointed with the fourth connecting plate (802), and the other end of the third connecting plate (801) is detachably connected with the fourth connecting plate (802).

6. Guardrail for a mobile crane according to claim 5, characterized in that the third connection plate (801) is provided with grooves (803), which grooves (803) are in sliding connection with the fourth connection plate (802).

7. Guardrail for a mobile crane according to claim 5, characterized in that the bottom end of the fourth connection plate (802) is provided with a stop platform (804), the stop platform (804) being adapted to limit the movable lowest end of the third connection plate (801).