CN219193267U

CN219193267U - Cat ladder device and container

Info

Publication number: CN219193267U
Application number: CN202223550478.0U
Authority: CN
Inventors: 严永健; 杭文道
Original assignee: Shanghai Taiping International Container Co ltd
Current assignee: Shanghai Taiping International Container Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-16
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to a cat ladder device and a container, comprising: the top of the escalator body is hinged to the mounting surface; the bottom frame comprises a connecting bracket and an extending frame which are hinged with each other, one end of the connecting bracket, which is far away from the extending frame, is hinged and fixed on the mounting surface, and one end of the extending frame, which is far away from the connecting bracket, is connected to the bottom of the escalator body; the locking device comprises a through hole which is arranged on a cross beam at one end far away from the extension frame and a lock tongue which is arranged at the bottom of the escalator body; when the escalator is folded, the connecting part of the connecting bracket and the extending frame moves upwards, the included angle between the connecting bracket and the extending frame is gradually reduced, and the included angle between the escalator body and the mounting surface is gradually reduced; the lock tongue and the escalator body are respectively positioned at two sides of the through hole under the folding state, and one side surface of the cross beam, which faces the mounting surface, is used for limiting the bottom of the escalator body to move in the direction away from the mounting surface by blocking the lock tongue.

Description

Cat ladder device and container

Technical Field

The utility model relates to the field of container design, in particular to a ladder stand device and a container.

Background

In order to facilitate loading and unloading, a straight ladder which is fixed by bolt connection or welded is commonly adopted on a tank container (or tank truck), and a manual telescopic crawling ladder which is more convenient to go up/down is also adopted. However, the common manual telescopic ladder requires laborious position adjustment and sometimes fails, the ladder cannot be completely opened or closed, and the common manual telescopic ladder requires manual effort to be opened or closed, which is time-consuming and laborious; and the safety accident can be caused by the fact that the position is not firm and the safety accident is unfolded in the transportation process. Based on the above, it is necessary to develop a ladder stand which is convenient, labor-saving and safe to use.

Disclosure of Invention

In view of the above, it is desirable to provide a ladder stand device and a container, which address at least some of the problems set forth above.

A ladder stand apparatus comprising:

the top of the escalator body is hinged to the mounting surface;

the bottom frame comprises a connecting bracket and an extending frame which are hinged with each other, one end of the connecting bracket, which is far away from the extending frame, is hinged and fixed on the mounting surface, and one end of the extending frame, which is far away from the connecting bracket, is connected to the bottom of the escalator body;

the locking device comprises a through hole formed in a cross beam at one end, far away from the extension frame, of the connecting bracket and a lock tongue arranged at the bottom of the escalator body;

when the escalator is folded, the connecting part of the connecting bracket and the extending frame moves upwards, the included angle between the connecting bracket and the extending frame is gradually reduced, and the included angle between the escalator body and the mounting surface is gradually reduced; when the escalator is unfolded, the connecting part of the connecting bracket and the extending frame moves downwards, the included angle between the connecting bracket and the extending frame is increased, and the included angle between the escalator body and the mounting surface is gradually increased;

the lock tongue and the escalator body are respectively positioned at two sides of the through hole under the folding state, and the cross beam faces one side surface of the mounting surface to limit the bottom of the escalator body to move in the direction away from the mounting surface by blocking the lock tongue.

In one embodiment, the locking tongue is configured to be movable up and down and rotatable about a connection point with the escalator body, the axis of rotation being parallel to the cross beam for movement up and rotation before deployment of the ladder assembly such that a projection of the locking tongue falls within the through hole, thereby causing the locking tongue to pass through the through hole and move with the bottom of the escalator body in a direction away from the mounting surface upon deployment.

In one embodiment, the lock tongue is located at a middle position in the width direction of the escalator body.

In one embodiment, the end of the connecting bracket adjacent to the extension bracket is provided with an upper baffle for blocking the upper edge of the extension bracket in the unfolded state so as to limit the excessive rotation of the extension bracket relative to the connecting bracket.

In one embodiment, the escalator further comprises a telescopic device arranged between the escalator body and the mounting surface, and two ends of the telescopic device are respectively hinged and fixed to the middle part of the escalator body and the mounting surface.

In one embodiment, two ends of the telescopic device are respectively fixed on the escalator body and a support angle iron preset on the mounting surface through bolts.

In one embodiment, the telescoping device is a pneumatic spring lever or a hydraulic spring lever.

In one embodiment, the device further comprises a handle arranged on the upper surface of the connecting bracket.

The container comprises any one of the ladder stand devices, wherein the top of the ladder stand device is fixed on a top beam of the side wall of the container, and a connecting bracket at the bottom of the ladder stand device is hinged to a fixing frame fixed on the surface of the side wall.

The cat ladder device and the container have the following beneficial technical effects:

(1) The embodiment is convenient and fast to operate, saves labor, can be unfolded or folded without effort, and avoids time and effort; the crawling ladder can be in a completely opened or completely closed state, so that the crawling ladder is convenient to store;

(2) According to the embodiment, the locking device locks the escalator body and the connecting support, so that the escalator body and the connecting support can be locked safely and are firm in position, and the escalator body and the connecting support cannot be unfolded loose even jolt occurs in the transportation process, so that the probability of dangerous accidents is reduced.

Drawings

Fig. 1 is a schematic view of a container setting ladder stand device according to an embodiment of the present utility model;

fig. 2 is a partial enlarged view (length omitted) of the ladder stand device of fig. 1;

FIG. 3 is a cross-sectional view at A-A in FIG. 2;

FIG. 4 is an expanded view of the ladder stand apparatus;

FIG. 5 is a schematic view showing a locked state of a locking device according to an embodiment of the present utility model;

FIG. 6 is a schematic view showing a locking state of a locking device according to another embodiment of the present utility model;

in the figure, 1, a container; 1-1, a mounting surface; 1-2, a fixing frame;

10. an escalator body; 11. a connecting bracket; 11-1, a cross beam; 11-2, an upper baffle; 12. an extension frame;

20. a locking device; 21. a through hole; 22. a bolt; 23. an axis; 24. an axis of rotation;

30. a telescoping device; 31. a bolt; 32. supporting angle iron;

40. a handle.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

In order that the utility model may be readily understood, various embodiments of the utility model defined by the claims will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the utility model are shown in the drawings, which contain various specific details to aid in this understanding, but these details should be regarded as merely exemplary. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Accordingly, one of ordinary skill in the art will recognize that variations and modifications can be made to the various embodiments described herein without departing from the scope of the utility model as defined by the appended claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present utility model are provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims.

Throughout the description and claims of this specification, the words "comprise" and "include" and variations of the words, such as "comprising" and "comprising", mean "including but not limited to", and are not intended to (and do not) exclude other elements, integers or steps. Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the utility model are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The terms "comprises," "comprising," and/or "including" as used in this specification are intended to specify the presence of stated features, operations, or elements, but are not intended to limit the presence of one or more other features, operations, and/or elements. Furthermore, in the present disclosure, the terms "comprises" and/or "comprising," are intended to denote the presence of the characteristics, quantity, operation, elements, and components disclosed in the application, or combinations thereof. Thus, the terms "comprising" and/or "having" should be understood to mean that there are additional possibilities of one or more other features, quantities, operations, elements, and components, or combinations thereof.

In the present utility model, the expression "or" includes any or all combinations of words listed together. For example, "a or B" may contain a or B, or may contain both a and B.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present.

The terms "upper", "lower", "left", "right", and the like are used herein only to denote relative positional relationships, which may be changed when the absolute position of the object to be described is changed.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and this specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, in an embodiment of the present utility model, there is provided a ladder stand device including:

the top of the escalator body 10 is hinged to the mounting surface 1-1;

the bottom frame comprises a connecting bracket 11 and an extending frame 12 which are hinged with each other, wherein one end of the connecting bracket 11 far away from the extending frame 12 is hinged and fixed on the mounting surface 1-1, and one end of the extending frame 12 far away from the connecting bracket 11 is hinged to the bottom of the escalator body 10 through a bolt 31;

the locking device 20 comprises a through hole 21 arranged on the cross beam 11-1 at one end far away from the extension frame 12 of the connecting bracket 11 and a lock tongue 22 arranged at the bottom of the escalator body 10;

when folding, the connection part of the connection bracket 11 and the extension frame 12 moves upwards, the included angle between the connection bracket 11 and the extension frame 12 is gradually reduced, and the included angle between the escalator body 10 and the installation surface 1-1 is gradually reduced until the state is as shown in fig. 3; when the escalator is unfolded, the connecting part of the connecting bracket 11 and the extension frame 12 moves downwards, the included angle between the connecting bracket 11 and the extension frame 12 is increased, and the included angle between the escalator body 10 and the mounting surface 1-1 is gradually increased;

the lock tongue 22 and the escalator body 10 are respectively located at two sides of the through hole 21 in a folded state, and one side surface of the crossbeam 11-1, which faces the mounting surface 1-1, is used for limiting the bottom of the escalator body 10 to move in a direction away from the mounting surface 1-1 by blocking the lock tongue 22.

Specifically, the ladder stand can be arranged on the side wall of the container 1 or the tank truck, and the side wall is the mounting surface 1-1. In a normal folded state (as shown in fig. 2), the included angle between the connecting bracket 11 and the extension bracket 12 is the smallest, and the escalator body 10 is parallel to the mounting surface 1-1; when the escalator is used to be unfolded, the locking device 20 is unlocked, the connecting part of the connecting bracket 11 and the extension frame 12 is operated to move downwards, the included angle between the connecting bracket 11 and the extension frame 12 is increased, and the included angle between the escalator body 10 and the mounting surface 1-1 is gradually increased in the process until the escalator is in the unfolded state of fig. 4;

when the folding and storage are needed after the unfolding and use, the connecting part of the connecting bracket 11 and the extension frame 12 is reversely operated to move upwards, the included angle between the connecting bracket 11 and the extension frame 12 is gradually reduced, and meanwhile, the included angle between the escalator body 10 and the mounting surface 1-1 is also gradually reduced; in the folded state, the lock tongue 22 and the escalator body 10 are respectively located at two sides of the through hole 21, and at this time, the side surface of the crossbeam 11-1 facing the mounting surface 1-1 is used for limiting the movement of the bottom of the escalator body 10 in the direction away from the mounting surface 1-1 by blocking the lock tongue 22, so that the escalator body 10 and the connecting bracket 11 are firmly connected together, and stable folding locking connection between the two is realized.

The embodiment is convenient and fast to operate, saves labor, can be unfolded or folded without effort, and avoids time and effort; the crawling ladder can be in a completely opened or completely closed state, so that the crawling ladder is convenient to store;

the locking device can be safely locked, has firm position, can not loosen and spread even jolt in the transportation process, and reduces the probability of dangerous accidents.

Referring to fig. 3-5, in some embodiments, the locking tongue 22 is movable up and down and is rotatable about a connection point with the escalator body 10, with its axis of rotation 24 parallel to the plane of the escalator body 10, for movement up and into the through hole 21 before deployment of the ladder assembly, such that the projection of the locking tongue 22 falls within the through hole, thereby allowing the locking tongue to pass through the through hole and move with the bottom of the escalator body away from the mounting surface when deployed.

Specifically, the lock tongue 22 is rotatable, before the lock tongue 22 is unfolded, the lock tongue 22 is moved upwards and rotated until the projection of the lock tongue 22 on the cross beam 11-1 completely falls into the through hole 21, and at the moment, the surface of one side of the cross beam 11-1, which faces the mounting surface 1-1, cannot be abutted against the lock tongue 22, so that the lock tongue 22 can pass through the through hole 21 and move along with the escalator body 10 in a direction away from the mounting surface 1-1 during the unfolding; when the escalator body 10 needs to be folded again, the lock tongue 22 moves along with the escalator body 10 in a direction close to the mounting face 1-1 and passes through the through hole 21, the lock tongue 22 rotates and moves downwards after passing through the through hole 21, so that the lock tongue 22 and one side surface part of the cross beam 11-1, which faces the mounting face 1-1, of the container (as shown in fig. 5, the side surface of the cross beam 11-1, which faces the container mounting face 1-1, at the moment, the projection part of the lock tongue 22 on the cross beam 11-1 falls on the surface around the through hole 21), at the moment, one side surface of the cross beam 11-1, which faces the mounting face 1-1, can abut against the lock tongue 22, and the purpose of limiting the movement of the bottom of the escalator body 10 in a direction far away from the mounting face 1-1 is achieved. According to the embodiment, the lock tongue 22 is arranged to rotate to different positions around the rotation axis 24 and then is matched with the through hole 21, so that the locking device 20 locks and unlocks the escalator body 10 and the connecting support 11, the structural design is ingenious, the locking device 20 does not need to be dismounted during unlocking, and the situation that parts are accidentally lost after being dismounted is avoided.

Referring to fig. 6, in other embodiments, the locking tongue 22 of the locking device may be configured to be rotatable about an axis 23 perpendicular to the plane of the escalator body 10 for rotation to project into the through hole prior to deployment, such that the locking tongue 22 passes through the through hole 21 and moves with the bottom of the escalator body 10 away from the mounting surface 1-1 upon deployment. Specifically, the lock tongue 22 is rotatable, before the lock tongue 22 is unfolded, the lock tongue 22 is rotated until the projection of the lock tongue 22 on the cross beam 11-1 falls into the through hole 21, and at the moment, the surface of one side of the cross beam 11-1, which faces the mounting surface 1-1, cannot be abutted to the lock tongue 22, so that the lock tongue 22 can pass through the through hole 21 and move along with the escalator body 10 in a direction away from the mounting surface 1-1 during the unfolding; when the escalator body 10 needs to be folded again, the lock tongue 22 moves along with the escalator body 10 in a direction close to the mounting face 1-1 and passes through the through hole 21, the lock tongue 22 rotates after passing through the through hole 21 until the projection part of the lock tongue 22 on the cross beam 11-1 falls on the surface around the through hole 21 (as shown in fig. 6, the cross beam 11-1 is partially overlapped with the surface of the cross beam 11-1 facing the mounting face 1-1 at the moment), and the surface of the cross beam 11-1 facing the mounting face 1-1 can be abutted against the lock tongue 22, so that the purpose of limiting the movement of the bottom of the escalator body 10 in a direction far away from the mounting face 1-1 can be achieved.

Referring to fig. 2, in some embodiments, the locking tongue 22 is located at a widthwise intermediate position of the escalator body 10.

Referring to fig. 4, in some embodiments, an upper baffle 11-2 is provided at an end of the connection bracket 11 adjacent to the extension bracket 12 for blocking an upper edge of the extension bracket 12 in a deployed state to limit excessive rotation of the extension bracket 12 relative to the connection bracket 11. Specifically, in the unfolding process, when the included angle between the connecting bracket 11 and the extending bracket 12 increases to 180 °, the upper baffle 11-2 of the connecting bracket 11 near one end of the extending bracket 12 can block the upper edge of the extending bracket 12, so as to limit the excessive rotation of the extending bracket 12 relative to the connecting bracket 11, and at this time, the relative position between the connecting bracket 11 and the extending bracket 12 is fixed, so that the stable state of the whole ladder is ensured.

Referring to fig. 3, in some embodiments, the escalator further includes a telescopic device 30 disposed between the escalator body 10 and the mounting surface 1-1, and both ends are respectively hinged and fixed to the middle portion of the escalator body 10 and the mounting surface 1-1. Specifically, support angle irons 32 may be provided in advance in the middle part of the escalator body 10 and the mounting surface 1-1, and the two ends of the telescopic device 30 may be fixed to the two support angle irons 32 by bolts 31 and gaskets, so that the telescopic device 30 may be mounted. When the telescopic device 30 is unfolded, the damping in the telescopic device 30 can play a supporting role on the escalator body 10, so that the situation that the escalator body 10 is excessively heavy and reversely moves towards the mounting surface 1-1 in a fitting way to cause injury to people is avoided, and meanwhile, the supporting role of the telescopic device 30 ensures that the cat ladder can be completely unfolded; when the manual portable connecting bracket 11 performs folding operation, the whole body can be slowly shortened due to the buffering action of gas or liquid damping in the telescopic device 30, and the escalator body 10 can be continuously supported when manpower is insufficient, so that the manual folding operation is directly assisted, the operation is more labor-saving, and the required force for lifting the connecting bracket 11 is greatly reduced.

In some embodiments, the telescoping device 30 comprises a pneumatic spring rod or a hydraulic spring rod. The adopted pneumatic spring rod or hydraulic spring rod has the characteristics of light structure and large working stroke; and the motion is stable, the characteristic line is stable and is close to the invariable, the damping buffer effect can be fully achieved, and the smooth progress of the unfolding and folding processes is ensured.

Referring to fig. 3, in some embodiments, a handle 40 is further included and provided on the upper surface of the connection bracket 11. When the escalator is folded, the handle 40 can be held and pulled upwards, so that the connecting part of the connecting bracket 11 and the extension frame 12 moves upwards, the included angle between the connecting bracket 11 and the extension frame 12 is gradually reduced, and the included angle between the escalator body 10 and the mounting surface 1-1 is also gradually reduced until the escalator body 10 is attached to the mounting surface 1-1, and manual holding operation is greatly facilitated by arranging the handle 40.

In another embodiment of the present utility model, a container is provided, which includes any one of the above ladder stand devices, wherein the top of the ladder stand device is fixed to a top beam of a side wall of the container 1 by bolts 31, and a connection bracket 11 at the bottom of the ladder stand device is hinged to a fixing frame 1-2 fixed to the surface of the side wall.

In the above description, although the respective elements of the present utility model may be described using expressions such as "first" and "second", they are not intended to limit the corresponding elements. For example, the above description is not intended to limit the order or importance of the corresponding elements. The above description is intended to distinguish one element from another element.

The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The singular forms include plural forms unless there is a significant difference in context, schemes, etc. between them.

The foregoing is merely exemplary embodiments of the present utility model and is not intended to limit the scope of the utility model, which is defined by the appended claims.

It will be appreciated by those skilled in the art that the technical features of the above-described embodiments may be omitted, added or combined in any way, and that all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, and that simple variations which can be envisaged by those skilled in the art, and structural variations which make adaptations and functionalities of the prior art, should be considered as within the scope of the present description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that while the present utility model has been shown and described with reference to various embodiments, it will be apparent to those skilled in the art that various changes and modifications in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A ladder stand device, comprising:

the top of the escalator body is hinged to the mounting surface;

2. The stair climbing device according to claim 1, wherein the locking tongue is configured to be movable up and down and rotatable about a connection point with the stair body, the axis of rotation being parallel to the plane of the stair body for moving up and rotating before deployment of the stair climbing device such that the projection of the locking tongue falls within the through hole, whereby the locking tongue, when deployed, passes through the through hole and moves with the bottom of the stair body in a direction away from the mounting surface.

3. The ladder stand device according to claim 1, characterized in that the lock tongue is located at an intermediate position in the width direction of the ladder body.

4. The ladder stand apparatus of claim 1, wherein an end of the connecting bracket adjacent the extension bracket is provided with an upper stop for blocking an upper edge of the extension bracket in the deployed state to limit excessive rotation of the extension bracket relative to the connecting bracket.

5. The crawling ladder device of claim 1, further comprising a telescopic device arranged between the escalator body and the mounting surface, wherein two ends of the telescopic device are respectively hinged and fixed to the middle part of the escalator body and the mounting surface.

6. The ladder stand device of claim 5, wherein two ends of the telescoping device are fixed to the escalator body and a support angle iron preset on the mounting surface by bolts, respectively.

7. The ladder stand apparatus of claim 5, wherein the telescoping device is a pneumatic spring rod or a hydraulic spring rod.

8. The ladder stand apparatus of claim 1, further comprising a handle disposed on an upper surface of the connecting bracket.

9. A container comprising a ladder stand according to any one of claims 1-8, wherein the top of the ladder stand is fixed to a top beam of a side wall of the container, and a connecting bracket at the bottom of the ladder stand is hinged to a fixing frame fixed to the surface of the side wall.