CN112977263A

CN112977263A - Staircase subassembly and have its transport vechicle

Info

Publication number: CN112977263A
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: 2021-06-18
Anticipated expiration: 2041-02-26
Also published as: CN112977263B

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 positioned above the mounting plate, and comprises a movable part and a fixed part, and the movable part is movably arranged on the fixed part; the reset structure is matched with the movable part so as 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 the container during loading and unloading of the container 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

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

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

In the related art, the handrails and the pedals mainly comprise handrails, a mounting seat, pedal bodies, the pedals and the like, and the handrails and the pedal bodies are fixed on the mounting seat through bolts. The handrail in the structure is a fixed handrail, and the handrail can be collided when the container is loaded and unloaded, 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 same, and aims to solve the problem that a handrail structure of the escalator component in the prior art is easy to interfere with a container during loading and unloading of the container.

In order to achieve the above object, according to one aspect of the present invention, there is provided an escalator assembly provided on an underframe of a transport vehicle, the escalator assembly comprising: the mounting plate is connected with the underframe; the handrail structure is connected with the mounting plate and positioned above the mounting plate, and comprises a movable part and a fixed part, and the movable part is movably arranged on the fixed part; the reset structure is matched with the movable part so as 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 comprises: the base is connected with the movable disc and arranged at intervals; and the elastic piece is positioned between the limiting sleeve and the base.

Further, the movable part still includes the bar, and the bar setting is on the movable disk, and the structure that resets 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; and the stop structure is arranged at the second end of the pull rod and is matched with the base in a stop way.

Furthermore, 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 connected with the connecting hook and fixedly connected with the first end of the pull rod.

Further, the movable disc comprises a first disc body, a second disc body and an intermediate 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 intermediate disc body, the limiting sleeve is of a cone-shaped structure, the inner diameter of the limiting sleeve is gradually reduced 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 joint with the end face of the limiting sleeve.

Furthermore, a bulge is arranged on the base, 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 the pedal structure, and the pedal structure is connected with the mounting panel and is located the below of mounting panel, and the 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; 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; the protection plate is arranged on the vertical section of the connecting arm.

According to another aspect of the invention, there is provided a transportation vehicle comprising an armrest 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 which can reset the movable part and can only be at the initial position is arranged, so that the movable part can deflect adaptively when being acted by external force, and the movable part can be restored to the initial position when the external force disappears, thereby ensuring that the movable part can deflect to prevent the movable part from being damaged by collision when colliding with the movable part in the container loading process, and the movable part can be restored to the initial position after the container is loaded, the normal use of workers can not be influenced, the collision with the container can be avoided on 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 incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

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

figure 2 shows a first schematic structural view of the escalator assembly of figure 1;

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

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

FIG. 5 shows a schematic structural view of the stop collar of FIG. 2 with the attachment hooks and links;

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 foot peg structure of FIG. 2; and

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

Wherein the figures include the following reference numerals:

1. a chassis; 10. mounting a plate; 20. a handrail structure; 21. a movable tray; 211. a first tray body; 212. a second tray body; 22. a limiting sleeve; 23. a base; 231. a protrusion; 232. a limiting structure; 24. an elastic member; 25. a grab rail; 26. a pull rod; 27. a stop structure; 28. a connecting hook; 29. a chain link; 210. installing a 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. a rib plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 to 3, the present embodiment provides an escalator assembly provided on a base frame 1 of a transportation 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 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 on the fixed part; the reset structure is matched with the movable part so as to reset the movable part to the initial position.

In this embodiment, because the movable part movably sets up on the fixed part, and set up and to have made the movable part reset the structure that resets that can only the initial position, thereby make the movable part can take place the adaptability and deflect when receiving the exogenic action, and make the movable part resume to the initial position when the exogenic action disappears, and then guaranteed when loading in-process and movable part bump at the container, the movable part can take place to deflect, prevent to be damaged by the collision, and the container loads the completion back, the movable part resumes to the initial position, can not influence staff's normal use, avoid colliding with the container emergence under the prerequisite of guaranteeing the normal work of handrail structure 20, handrail structure 20's life has been improved.

It should be noted that the movable portion is not freely movable, 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 external force from damaging the movable portion. The initial position of the movable portion in this embodiment means: the operating condition when the movable part is in vertical position, the external force that the movable part received indicates the great effort that the collision extrusion of container produced, and staff's normal gripping power can not cause the motion of movable part.

As shown in fig. 2 to 4, in the present embodiment, the movable portion includes a movable plate 21, the fixed portion includes a position-limiting sleeve 22, and a lower end of the movable plate 21 is movably inserted into the position-limiting sleeve 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 limiting 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 restoring structure includes a base 23 and an elastic member 24. Wherein, the base 23 is connected with the movable disc 21 and arranged at intervals; the elastic member 24 is located between the position-limiting sleeve 22 and the base 23.

Preferably, the elastic member 24 in this embodiment is a high stiffness spring, when the radial direction of the movable plate 21 forms an angle with the horizontal direction, the elastic member 24 is compressed between the base 23 and the stop collar 22, and when the external force disappears, the elastic force of the elastic member 24 restores the movable plate 21 to the initial position, i.e. the vertical position.

The reset device is simple in structure, convenient to reset and low in cost.

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 plate 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 to the movable plate 21, and the elastic element 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 element 24 between the limiting sleeve 22 and the base 23. Wherein, threaded connection in the middle of base 23 and the pull rod 26, backstop structure 27 includes nut and split pin, and the nut is twisted soon on pull rod 26 to be located the below of base 23, the lower extreme of pull rod 26 is equipped with the mounting hole, and the split pin is inserted and is established in the mounting hole, in order to further carry out the backstop to base 23.

The arrangement ensures the stability of the installation of the elastic element 24 and ensures that the elastic element 24 can be compressed when the movable plate 21 moves relative to the stop collar 22, thereby ensuring the reset function of the reset structure.

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

In this embodiment, one end of the coupling hook 28 is welded to the lower surface of the movable plate 21 to secure the coupling strength, and the link 29 is hooked on the coupling hook 28 and welded to the outer wall surface of the draw bar 26. The above arrangement ensures that the connecting hook 28 follows the rotation of the movable disk 21 and can rotate with the chain ring 29 when the radial direction of the movable disk 21 is inclined to the horizontal, so that the pull rod 26 can only be pulled and cannot rotate with the movable disk 21.

As shown in fig. 4, in the present embodiment, the movable disk 21 includes a first disk 211, a second disk 212, and an intermediate disk connected between the first disk 211 and the second disk 212, a diameter of the first disk 211 is greater than a diameter of the second disk 212, a diameter of the second disk 212 is greater than a diameter of the intermediate disk, the position-limiting sleeve 22 is of a conical tube structure, an inner diameter of the position-limiting sleeve 22 is gradually reduced from top to bottom, the diameter of the first disk 211 is greater than a maximum inner diameter of the position-limiting sleeve 22, and the first disk 211 is in abutting fit with an end surface of the position-limiting sleeve 22.

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

Preferably, the outer peripheral surface of the second disc body 212 is a circular arc surface, which ensures that the movable disc 21 is smoother during movement.

As shown in fig. 6, in the present embodiment, a protrusion 231 is disposed on the base 23, and the lower end of the elastic element 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, fig. 3 and fig. 7, in this embodiment, the fixing portion further includes a mounting sleeve 210, the mounting sleeve 210 is connected to the mounting plate 10, the limiting sleeve 22 is disposed at the upper end of the mounting sleeve 210, the base 23 and the elastic element 24 are both located in the mounting sleeve 210, a limiting structure 232 protruding outward is disposed on a circumferential side wall of the base 23, and a groove 2101 matched with the limiting structure 232 is disposed on the mounting sleeve 210.

Due to the limit fit between the limit structure 232 and the groove 2101, the structural component 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 multiple, 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 correspond to the limiting structures 232 one by one.

As shown in fig. 8 and 9, in the present embodiment, the escalator assembly further includes a step structure 30, the step structure 30 is connected to the mounting plate 10 and is located below the mounting plate 10, and the step structure 30 includes a connecting arm 31, a step 32, a reinforcement plate 33, and a protection plate 34. 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 pedals 32 are arranged on the lateral sections; reinforcing plate 33 a part of reinforcing plate 33 is connected with mounting plate 10, and another part of reinforcing plate 33 is connected with vertical section; the shielding plate 34 is provided on a vertical section of the connecting arm 31.

In this embodiment, the upper end of the vertical section is fixed to the mounting plate 10 by bolts, the pedal 32 is fixed to the horizontal section by bolts, the reinforcing plate 33 is fixedly connected to the mounting plate 10 by bolts, and is welded to the vertical section, and the mounting plate 10 is clamped 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 increased, the 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 using process, due to the fact that the rigidity of the pedal structure is insufficient, breakage occurs between the vertical section and the mounting plate at the position of the bolt hole is avoided, and potential safety hazards are avoided.

Further, the connecting arm includes two vertical sections and two horizontal sections, and two vertical section intervals set 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 the interval between the two vertical sections of shutoff to prevent that the staff from stepping on empty 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 bolted to two vertical sections, and two mounting plates 10 spaced apart 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 fastened and connected with the mounting plate 10 through bolts, and the connecting plate 41, the rib plate 42 and the mounting sleeve 210 are connected in a welding mode.

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

Therefore, the transport vehicle with the handrail assembly also has the advantages.

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

because the movable part movably sets up on the fixed part, and set up and to have made the movable part reset the structure that resets that can only the initial position, thereby make the movable part can take place the adaptability when receiving the exogenic action and deflect, and make the movable part resume to the initial position when the exogenic action disappears, and then guaranteed when the container loading in-process collides with the movable part, the movable part can take place to deflect, prevent to be collided and damaged, and the container loads the completion back, the movable part resumes to the initial position, can not influence staff's normal use, avoid colliding with the container emergence under the prerequisite of guaranteeing the normal work of handrail structure, the service life of handrail structure has been improved.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship 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 of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement 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 provided on a base frame (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 on the fixed part;

the resetting structure is matched with the movable part so as to reset the movable part to an initial position.

2. Escalator assembly according to claim 1, characterized in that the moving part comprises a moving disc (21) and the fixed part comprises a stop collar (22), the lower end of the moving disc (21) being movably inserted in the stop collar (22).

3. The escalator assembly of claim 2, wherein the return structure comprises:

a base (23) connected to the movable plate (21) and arranged at intervals;

and the elastic piece (24) is positioned between the limiting sleeve (22) and the base (23).

4. The escalator assembly according to claim 3, characterized in that the moving part further comprises a grab bar (25), the grab bar (25) being disposed on the moving pan (21), the return 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);

a stop structure (27) disposed at a second end of the pull rod (26), the stop structure (27) in stop-fit with the base (23).

5. The escalator assembly according to claim 4, wherein the reset structure further comprises a connecting hook (28) and a chain link (29) connected with the connecting hook (28), the chain 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 chain link (29) is hooked with the connecting hook (28) and fixedly connected with the first end of the pull rod (26).

6. The escalator assembly according to claim 2, characterized in that the movable plate (21) comprises a first plate body (211), a second plate body (212) and an intermediate plate body connected between the first plate body (211) and the second plate body (212), the diameter of the first plate body (211) is larger than that of the second plate body (212), the diameter of the second plate body (212) is larger than that of the intermediate plate body, the stop collar (22) is in a cone-tube structure, the inner diameter of the stop collar (22) is gradually reduced from top to bottom, the diameter of the first plate body (211) is larger than the maximum inner diameter of the stop collar (22), and the first plate body (211) is in abutting fit with the end surface of the stop collar (22).

7. Escalator assembly according to claim 3, characterized in that the base (23) is provided with a projection (231), and the lower end of the spring element (24) is fitted over the outer circumference of the projection (231).

8. The escalator component according to claim 7, wherein the fixing portion 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 member (24) are both located in the mounting sleeve (210), a limiting structure (232) protruding outwards is arranged on the circumferential side wall of the base (23), and a groove (2101) matched with the limiting structure (232) is arranged on the mounting sleeve (210).

9. The escalator assembly according to claim 1, further comprising a footrest structure (30), the footrest structure (30) being connected to the mounting plate (10) and located below the mounting plate (10), the footrest 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), one part of the reinforcing plate (33) being connected with the mounting plate (10), the other part of the reinforcing plate (33) being connected with the vertical section;

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

10. A transporter comprising a handrail assembly, wherein the handrail assembly is as claimed in any one of claims 1 to 9.