CN112977263B

CN112977263B - Staircase subassembly and have its transport vechicle

Info

Publication number: CN112977263B
Application number: CN202110218697.XA
Authority: CN
Inventors: 沈彩瑜; 白雪; 杨金达; 赵金凤; 吴荣坤; 付勇; 李华
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2023-07-14
Anticipated expiration: 2041-02-26
Also published as: CN112977263A

Abstract

The invention provides an escalator component and a transport vehicle with the same. The staircase subassembly sets up on the chassis of transport vechicle, and the staircase subassembly includes: the mounting plate is connected with the underframe; the handrail structure is connected with the mounting plate and is positioned above the mounting plate, and comprises a movable part and a fixed part, wherein the movable part is movably arranged on the fixed part; and the reset structure is matched with the movable part to reset the movable part to the initial position. By applying the technical scheme of the invention, the problem that the handrail structure of the escalator component in the prior art is easy to interfere with a container during container loading and unloading can be solved.

Description

Staircase subassembly and have its transport vechicle

Technical Field

The invention relates to the technical field of transport vehicles, in particular to an escalator component and a transport vehicle with the same.

Background

The container transportation is an advanced transportation mode, has the advantages of high transportation efficiency, low transportation cost, convenient intermodal transportation, less goods loss, door-to-door and the like, is a main mode of modern logistics and multi-mode intermodal transportation, and has been widely adopted by all countries of the world.

The handrails and the pedals are important structural components of the container transport vehicle, and workers get on and off the vehicle through the pedals and the handrails so as to provide convenience for the workers to get on and off the vehicle.

In the related art, the handrail and the pedal mainly comprise a handrail, a mounting seat, a pedal body, a pedal and the like, and the handrail and the pedal body are fixed on the mounting seat through bolts. The handrail in the structure is a fixed handrail, and the handrail can be knocked when the container is assembled and disassembled, so that the service life of the handrail is influenced.

Disclosure of Invention

The invention mainly aims to provide an escalator component and a transport vehicle with the escalator component, so as to solve the problem that an armrest structure of the escalator component is easy to interfere with a container during container loading and unloading in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided an escalator assembly provided on a chassis of a transportation vehicle, the escalator assembly comprising: the mounting plate is connected with the underframe; the handrail structure is connected with the mounting plate and is positioned above the mounting plate, and comprises a movable part and a fixed part, wherein the movable part is movably arranged on the fixed part; and the reset structure is matched with the movable part to reset the movable part to the initial position.

Further, the movable part comprises a movable disc, the fixed part comprises a limiting sleeve, and the lower end of the movable disc is movably arranged in the limiting sleeve in a penetrating mode.

Further, the reset structure includes: the base is connected with the movable disc and is arranged at intervals; the elastic piece is positioned between the limit sleeve and the base.

Further, the movable part still includes the grab bar, and the grab bar sets up on the movable dish, and reset structure still includes: the first end of the pull rod is connected with the movable disc, and the elastic piece and the base are sleeved on the pull rod; the stop structure is arranged at the second end of the pull rod and matched with the base stop.

Further, the reset structure further comprises a connecting hook and a chain ring connected with the connecting hook, the chain ring is of an inverted U-shaped structure, the connecting hook is fixedly connected with the lower surface of the movable disc, and the chain ring is hooked with the connecting hook and is fixedly connected with the first end of the pull rod.

Further, the movable disc comprises a first disc body, a second disc body and a middle disc body connected between the first disc body and the second disc body, the diameter of the first disc body is larger than that of the second disc body, the diameter of the second disc body is larger than that of the middle disc body, the limiting sleeve is of a cone structure, the inner diameter of the limiting sleeve gradually reduces from top to bottom, the diameter of the first disc body is larger than the maximum inner diameter of the limiting sleeve, and the first disc body is in butt fit with the end face of the limiting sleeve.

Further, the base is provided with a bulge, and the lower end of the elastic piece is sleeved on the periphery of the bulge.

Further, the fixed part still includes the installation cover, and the installation cover is connected with the mounting panel, and the stop collar setting is in the upper end of installation cover, and base and elastic component all are located the installation cover, are equipped with outside convex limit structure on the circumference lateral wall of base, are equipped with on the installation cover with limit structure complex recess.

Further, the staircase subassembly still includes pedal structure, pedal structure and mounting panel are connected and are located the below of mounting panel, pedal structure includes: the connecting arm comprises a vertical section and a transverse section, and the upper end of the vertical section is connected with the mounting plate; a pedal disposed on the transverse section; the reinforcing plate, one part of the reinforcing plate is connected with the mounting plate, and the other part of the reinforcing plate is connected with the vertical section; and the protection plate is arranged on the vertical section of the connecting arm.

According to another aspect of the present invention, there is provided a transport vehicle comprising a handrail assembly as described above.

By applying the technical scheme of the invention, the movable part is movably arranged on the fixed part, and the reset structure capable of resetting the movable part to the initial position is arranged, so that the movable part can adaptively deflect when the external force acts, and can be restored to the initial position when the external force disappears, further, the movable part can deflect when the movable part collides with the container in the loading process of the container, the movable part is prevented from being damaged by collision, and after the container is loaded, the movable part is restored to the initial position, the normal use of staff is not influenced, the collision with the container is avoided under the premise of ensuring the normal work of the handrail structure, and the service life of the handrail structure is prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a transport vehicle according to the invention;

fig. 2 shows a schematic structural view of the escalator assembly of fig. 1;

fig. 3 shows a second schematic structural view of the escalator assembly of fig. 1;

FIG. 4 shows a schematic view of the movable plate and stop collar of FIG. 2;

FIG. 5 shows a schematic view of the stop collar and the connecting hook and link of FIG. 2;

FIG. 6 shows a schematic structural view of the base of FIG. 2;

FIG. 7 shows a schematic structural view of the mounting sleeve of FIG. 2;

FIG. 8 illustrates a schematic structural view of the pedal structure of FIG. 2; and

fig. 9 shows a side view of fig. 8.

Wherein the above figures include the following reference numerals:

1. a chassis; 10. a mounting plate; 20. a handrail structure; 21. a movable plate; 211. a first tray; 212. a second tray body; 22. a limit sleeve; 23. a base; 231. a protrusion; 232. a limit structure; 24. an elastic member; 25. a grab rail; 26. a pull rod; 27. a stop structure; 28. a connecting hook; 29. a chain ring; 210. a mounting sleeve; 2101. a groove; 30. a pedal structure; 31. a connecting arm; 32. a pedal; 33. a reinforcing plate; 34. a protection plate; 41. a connecting plate; 42. and rib plates.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1 to 3, the present embodiment provides an escalator assembly provided on a chassis 1 of a transport vehicle, the escalator assembly including a mounting plate 10, a handrail structure 20, and a return structure. Wherein the mounting plate 10 is connected with the underframe 1; the armrest structure 20 is connected with the mounting plate 10 and is positioned above the mounting plate 10, the armrest structure 20 comprises a movable part and a fixed part, and the movable part is movably arranged at the fixed part; the reset structure is matched with the movable part to reset the movable part to the initial position.

In this embodiment, because the movable part is movably arranged on the fixed part, and a reset structure which can reset the movable part to the initial position is arranged, so that the movable part can adaptively deflect when the external force acts, and can be restored to the initial position when the external force disappears, further, the movable part can deflect when the movable part collides with the container loading process, so that the movable part is prevented from being damaged by collision, and the movable part can be restored to the initial position after the container loading is completed, the normal use of staff is not influenced, the collision with the container is avoided under the premise of ensuring the normal work of the handrail structure 20, and the service life of the handrail structure 20 is prolonged.

It should be noted that the movable arrangement of the movable portion does not refer to random movement, but when the movable portion receives a large external force, the axial direction of the movable portion deflects relative to the axial direction of the fixed portion, so as to prevent the movable portion from being damaged by the external force. The initial position of the movable portion in the present embodiment means: in the working state when the movable part is in the vertical position, the external force applied to the movable part refers to larger acting force generated by collision and extrusion of the container, and normal gripping force of staff can not cause movement of the movable part.

As shown in fig. 2 to 4, in the present embodiment, the movable portion includes a movable disc 21, the fixed portion includes a stopper 22, and the lower end of the movable disc 21 is movably inserted into the stopper 22.

Specifically, when the movable disc 21 receives an external force, an included angle is formed between the radial direction of the movable disc 21 and the horizontal direction, so that the lower end of the movable disc 21 moves along the inner wall surface of the limit sleeve 22, the axial direction of the whole movable part deflects relative to the axial direction of the fixed part, the external force is avoided, and the movable part is prevented from being damaged.

As shown in fig. 2 and 3, in the present embodiment, the return structure includes a base 23 and an elastic member 24. Wherein, the base 23 is connected with the movable disk 21 and is arranged at intervals; the elastic member 24 is located between the stop collar 22 and the base 23.

Preferably, the elastic member 24 in this embodiment is a high-stiffness spring, when an included angle is formed between the radial direction and the horizontal direction of the movable disc 21, the elastic member 24 is compressed between the base 23 and the stop collar 22, and when the external force is eliminated, the elastic force of the elastic member 24 returns the movable disc 21 to the initial position, i.e., the vertical position.

The setting structure is simple, the resetting operation is convenient, and the cost is low.

As shown in fig. 2 and 3, in the present embodiment, the movable portion further includes a grab bar 25, the grab bar 25 is disposed on the movable disc 21, the reset structure further includes a pull rod 26 and a stop structure 27, a first end of the pull rod 26 is connected with the movable disc 21, and the elastic member 24 and the base 23 are sleeved on the pull rod 26; a stop structure 27 is provided at the second end of the pull rod 26, the stop structure 27 being in stop engagement with the base 23.

Specifically, the pull rod 26 is a long straight rod, the upper end of the pull rod 26 is connected with the lower surface of the movable disc 21, and the base 23 is sleeved on the pull rod 26 to limit the elastic piece 24 between the limit sleeve 22 and the base 23. The base 23 is in threaded connection with the middle of the pull rod 26, the stop structure 27 comprises a nut and a cotter pin, the nut is screwed on the pull rod 26 and located below the base 23, a mounting hole is formed in the lower end of the pull rod 26, and the cotter pin is inserted into the mounting hole to further stop the base 23.

The above arrangement ensures the stability of the mounting of the elastic member 24 and ensures that the elastic member 24 can be compressed when the movable disc 21 moves relative to the stop collar 22, ensuring the return function of the return structure.

As shown in fig. 2, 3 and 5, in the present embodiment, the reset structure further includes a connection hook 28 and a link 29 connected to the connection hook 28, the link 29 is an inverted U-shaped structure, the connection hook 28 is fixedly connected to the lower surface of the movable disc 21, and the link 29 is hooked to the connection hook 28 and fixedly connected to the first end of the pull rod 26.

In the present embodiment, one end of the connection hook 28 is welded to the lower surface of the movable plate 21 to secure the connection strength, and the link 29 is hooked on the connection hook 28 and welded to the outer wall surface of the tie rod 26. The above arrangement ensures that when an angle is formed between the radial direction of the movable disc 21 and the horizontal direction, the coupling hook 28 follows the movable disc 21 and rotates with the link 29 so that the pull rod 26 can only be pulled and does not rotate with the movable disc 21.

As shown in fig. 4, in this embodiment, the movable disc 21 includes a first disc 211, a second disc 212, and an intermediate disc connected between the first disc 211 and the second disc 212, the diameter of the first disc 211 is greater than the diameter of the second disc 212, the diameter of the second disc 212 is greater than the diameter of the intermediate disc, the stop collar 22 is in a cone structure, the inner diameter of the stop collar 22 gradually decreases from top to bottom, the diameter of the first disc 211 is greater than the maximum inner diameter of the stop collar 22, and the first disc 211 is in abutting fit with the end surface of the stop collar 22.

Through the above arrangement, when the movable disc 21 moves relative to the stop collar 22, the second disc 212 always moves along the inner wall surface of the stop collar 22, so that the movement path of the movable disc 21 is limited, and the structures of the pull rod 26, the elastic piece 24, the base 23 and the like connected with the movable disc 21 are ensured to move in the vertical direction.

Preferably, the outer circumferential surface of the second disc 212 is an arc surface, which ensures that the movable disc 21 is smoother when moving.

As shown in fig. 6, in the present embodiment, the base 23 is provided with a protrusion 231, and the lower end of the elastic member 24 is sleeved on the outer periphery of the protrusion 231.

The above arrangement defines the position of the elastic member 24 on the base 23, and ensures the stability of the installation of the elastic member 24 on the base 23.

As shown in fig. 2, 3 and 7, in this embodiment, the fixing portion further includes a mounting sleeve 210, the mounting sleeve 210 is connected with the mounting plate 10, the limiting sleeve 22 is disposed at an upper end of the mounting sleeve 210, the base 23 and the elastic member 24 are both located in the mounting sleeve 210, the circumferential side wall of the base 23 is provided with a limiting structure 232 protruding outwards, and the mounting sleeve 210 is provided with a groove 2101 matched with the limiting structure 232.

Because of the limit fit between the limit structure 232 and the recess 2101, the structural members connected with the base 23 can be effectively prevented from rotating in the mounting sleeve 210.

Preferably, the number of the limiting structures 232 is plural, the limiting structures 232 are arranged at intervals in the circumferential direction of the base 23, and the number and the arrangement positions of the grooves 2101 on the mounting sleeve 210 are in one-to-one correspondence with the limiting structures 232.

As shown in fig. 8 and 9, in the present embodiment, the escalator assembly further includes a step structure 30, the step structure 30 being coupled to the mounting plate 10 and located below the mounting plate 10, the step structure 30 including a coupling arm 31, a step 32, a reinforcing plate 33, and a shielding plate 34. Wherein the connecting arm 31 comprises a vertical section and a transverse section, and the upper end of the vertical section is connected with the mounting plate 10; the pedal 32 is disposed on the lateral section; reinforcing plate 33 a part of reinforcing plate 33 is connected to mounting plate 10 and another part of reinforcing plate 33 is connected to the vertical section; the shielding plate 34 is provided on the vertical section of the connection arm 31.

In this embodiment, the upper end of the vertical section is fixed to the mounting plate 10 by bolting, the pedal 32 is fixed to the horizontal section by bolting, the reinforcing plate 33 is fixed to the mounting plate 10 by bolting, the reinforcing plate is welded to the vertical section, and the mounting plate 10 is sandwiched between the reinforcing plate 33 and the vertical section.

Due to the fact that the reinforcing plate 33 is arranged, the structural strength of connection between the connecting arm 31 and the mounting plate 10 is improved, rigidity of the whole pedal structure 30 is improved, resonance between the pedal structure 30 and a vehicle body is avoided, the situation that in the use process, due to insufficient rigidity of the pedal structure, a vertical section and the mounting plate are broken at the positions of bolt holes is avoided, and potential safety hazards are avoided.

Further, the connecting arm includes two vertical sections and two horizontal sections, and two vertical section interval sets up, and pedal structure 30 in this embodiment still includes the guard plate 34 that sets up on two vertical sections, and guard plate 34 is used for shutoff interval between two vertical sections to prevent that the staff from stepping on the sky when the operation.

As shown in fig. 1, in the present embodiment, there are two mounting plates 10, two connecting arms 31, two mounting plates 10 are bolted to two vertical segments, and two mounting plates 10 are disposed at a distance to provide a mounting space for the armrest structure 20.

The mounting sleeve 210 is connected with one of the two mounting plates 10, a connecting plate 41 and a rib plate 42 are arranged between the mounting sleeve 210 and the mounting plate 10, the connecting plate 41 is connected with the mounting plate 10 through bolt fastening, and the connecting plate 41 and the rib plate 42 are connected with the mounting sleeve 210 through welding.

The embodiment also provides a transport vehicle, which comprises the armrest assembly, wherein the armrest assembly is the armrest assembly.

Thus, a transport vehicle having the above-described armrest assembly also has the above-described advantages.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

the movable part is movably arranged on the fixed part, and the reset structure capable of enabling the movable part to reset to the initial position is arranged, so that the movable part can adaptively deflect when the external force acts on the movable part and can be restored to the initial position when the external force disappears, the movable part can deflect when the movable part collides with the container in the container loading process, the movable part is prevented from being damaged by collision, the movable part is restored to the initial position after the container loading is completed, the normal use of staff is not influenced, the collision with the container is avoided on the premise of ensuring the normal work of the handrail structure, and the service life of the handrail structure is prolonged.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An escalator assembly arranged on a chassis (1) of a transport vehicle, characterized in that the escalator assembly comprises:

a mounting plate (10) connected to the chassis (1);

the handrail structure (20) is connected with the mounting plate (10) and is positioned above the mounting plate (10), the handrail structure (20) comprises a movable part and a fixed part, and the movable part is movably arranged at the fixed part;

a reset structure which is matched with the movable part to reset the movable part to an initial position;

the movable part comprises a movable disc (21), the fixed part comprises a limit sleeve (22), and the lower end of the movable disc (21) is movably arranged in the limit sleeve (22) in a penetrating manner;

the movable disc (21) comprises a first disc body (211), a second disc body (212) and an intermediate disc body connected between the first disc body (211) and the second disc body (212), the diameter of the first disc body (211) is larger than that of the second disc body (212), the diameter of the second disc body (212) is larger than that of the intermediate disc body, the limiting sleeve (22) is of a cone structure, the inner diameter of the limiting sleeve (22) is gradually reduced from top to bottom, the diameter of the first disc body (211) is larger than the maximum inner diameter of the limiting sleeve (22), and the first disc body (211) is in abutting fit with the end face of the limiting sleeve (22);

the reset structure comprises: the base (23) is connected with the movable disc (21) and is arranged at intervals; an elastic member (24) which is positioned between the limit sleeve (22) and the base (23) and which returns the movable disk (21) to the initial position by elastic force when the external force is lost;

the fixed part further comprises a mounting sleeve (210), the mounting sleeve (210) is connected with the mounting plate (10), the limiting sleeve (22) is arranged at the upper end of the mounting sleeve (210), the base (23) and the elastic piece (24) are both positioned in the mounting sleeve (210), the circumferential side wall of the base (23) is provided with an outwards protruding limiting structure (232), and the mounting sleeve (210) is provided with a groove (2101) matched with the limiting structure (232).

2. The escalator assembly according to claim 1, wherein the movable portion further comprises a handrail (25), the handrail (25) being provided on the movable pan (21), the reset structure further comprising:

the first end of the pull rod (26) is connected with the movable disc (21), and the elastic piece (24) and the base (23) are sleeved on the pull rod (26);

and the stop structure (27) is arranged at the second end of the pull rod (26), and the stop structure (27) is in stop fit with the base (23).

3. The escalator assembly according to claim 2, characterized in that the reset structure further comprises a connecting hook (28) and a link (29) connected with the connecting hook (28), the link (29) is of an inverted U-shaped structure, the connecting hook (28) is fixedly connected with the lower surface of the movable disc (21), and the link (29) is hooked with the connecting hook (28) and fixedly connected with the first end of the pull rod (26).

4. Escalator assembly according to claim 1, characterized in that the base (23) is provided with a bulge (231), the lower end of the elastic element (24) being fitted over the periphery of the bulge (231).

5. The escalator assembly according to claim 1, further comprising a step structure (30), said step structure (30) being connected to said mounting plate (10) and being located below said mounting plate (10), said step structure (30) comprising:

the connecting arm (31) comprises a vertical section and a transverse section, and the upper end of the vertical section is connected with the mounting plate (10);

a pedal (32) disposed on the transverse section;

-a reinforcing plate (33), a portion of the reinforcing plate (33) being connected to the mounting plate (10), another portion of the reinforcing plate (33) being connected to the vertical section;

and a protection plate (34) arranged on the vertical section of the connecting arm (31).

6. A transportation vehicle comprising a handrail assembly, wherein the handrail assembly is as claimed in any one of claims 1 to 5.