CN217532709U - Reversible overhaul ladder, mining dump truck overhaul ladder assembly and mining dump truck - Google Patents
Reversible overhaul ladder, mining dump truck overhaul ladder assembly and mining dump truck Download PDFInfo
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- CN217532709U CN217532709U CN202221484582.1U CN202221484582U CN217532709U CN 217532709 U CN217532709 U CN 217532709U CN 202221484582 U CN202221484582 U CN 202221484582U CN 217532709 U CN217532709 U CN 217532709U
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Abstract
The utility model discloses a reversible overhaul ladder, a mining dump truck overhaul ladder assembly and a mining dump truck, which comprise a fixed ladder, an installation ladder and a connecting part; the fixed ladder is composed of a plurality of pedals I arranged in the middle and supporting plates I arranged on two sides; the mounting ladder is composed of a plurality of pedals II arranged in the middle and supporting plates II arranged on two sides, and the supporting plates II on the two sides are hinged to the supporting plates I on the two sides, so that the mounting ladder can be freely turned over on the fixed ladder; the connecting component is fixed on the fixed ladder, when the maintenance ladder is in a non-use state, the installation ladder turns upwards around the hinge point, and the installation ladder is folded and fixed on the fixed ladder through the installation connecting component, so that the maintenance ladder is prevented from being damaged due to collision with a barrier higher than the ground; when the maintenance ladder is in a using state, the connecting part is detached to enable the installation ladder to be turned downwards around the hinge point and then limited on the fixed ladder, and therefore people can be guaranteed to climb up more conveniently when the maintenance ladder is used for maintaining machines.
Description
Technical Field
The utility model relates to an access ladder can overturn belongs to the mining machinery field.
Background
The mining dump truck becomes an indispensable transport tool for various engineering and infrastructure facilities such as earthwork construction, mine exploitation and the like of various countries. The vehicle is in comparatively abominable environment such as mine uninterrupted operation, need often overhaul parts such as engine, inlet and exhaust pipe, deck lower side pipe line with the help of the maintenance ladder.
The existing maintenance ladder can generally meet the climbing requirement, but cannot meet the safety requirement of the ground clearance of the maintenance ladder. When the vehicle runs, the overhaul ladder easily collides with an obstacle higher than the ground, so that potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides a reversible overhaul ladder, which has the characteristics of simple structure and strong practicability.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a reversible maintenance ladder in a first aspect, which comprises a fixed ladder, an installation ladder and a connecting part; the fixed ladder is composed of a plurality of pedals I arranged in the middle and supporting plates I arranged on two sides; the mounting ladder is composed of a plurality of pedals II arranged in the middle and supporting plates II arranged on two sides, and the supporting plates II on the two sides are hinged to the supporting plates I on the two sides, so that the mounting ladder can be freely turned over on the fixed ladder; the connecting component is fixed on the fixed ladder, when the maintenance ladder is in a non-use state, the mounting ladder turns upwards around the hinge point, and the mounting ladder is fixed on the fixed ladder in a folding mode through the connecting component; when the maintenance ladder is in a using state, the mounting ladder is turned downwards around the hinge point and then limited on the fixed ladder by removing the connecting component.
In some embodiments, the connecting member comprises an upper tube, a lower tube, and an L-shaped latch; the upper pipe is fixed on the outer side surface of the support plate I; the lower pipe is fixed on the outer side face of the support plate II, and after the mounting ladder is folded on the fixing ladder, the lower pipe is positioned at the right lower end of the upper pipe; when the maintenance ladder is in a use state, the L-shaped bolt can be freely inserted into and pulled out of the upper pipe; when the maintenance ladder is in a non-use state, the L-shaped bolt can be simultaneously and freely inserted and pulled in the upper pipe and the lower pipe.
In some embodiments, the connecting member further comprises a chain having one end connected to the L-shaped pin and the other end connected to the support plate i.
In some embodiments, the hinge point is comprised of an apertured bolt, a slotted nut, a pin; the perforated bolt penetrates through the support plate I and the support plate II, the support plate I and the support plate II are fastened by screwing the slotted nut on the perforated bolt, and the pin is inserted into the notch of the slotted nut and the through hole of the perforated bolt.
In some embodiments, the lower ends of the outer side surfaces of the supporting plates I on two sides are respectively fixed with a limiting block, and the limiting blocks play a limiting role when the mounting ladder is unfolded.
In some embodiments, the limiting blocks are fixed on the outer side face of the support plate I at a preset angle relative to the vertical plane, and the limiting blocks are utilized to fix the support plate I on the outer side face of the support plate I
The mounting ladders are limited to the same direction of the fixed ladder.
In some embodiments, a handle is connected to the outer side of the lowest pedal of the mounting ladder.
In some embodiments, the invertible access ladder further comprises a guard assembly disposed adjacent to the fixed ladder for use as a handrail and a guardrail.
In some embodiments, the protection assembly comprises a long handrail, a short handrail, a protective guard and a connecting rod, wherein the long handrail and the short handrail are respectively fixed at two sides of the fixed ladder; the guard rail is arranged on the frame positioned on the short handrail side; the bottom end of the connecting rod is connected with the short handrail, and the top end of the connecting rod is connected with the protective guard.
The utility model discloses the second aspect provides a mining dump truck access ladder assembly, including the frame both sides respectively are equipped with a symmetrical arrangement's foretell access ladder that can overturn.
The utility model provides a third aspect of the mining dump truck, which is provided with the reversible overhaul ladder; or, the mining dump truck overhaul ladder assembly is installed.
The utility model discloses beneficial effect:
the mining dump truck is folded by overturning the mounting ladder, so that a certain safety distance can be kept between the left and right maintenance ladders and the ground when the mining dump truck runs, and the maintenance ladders are prevented from being damaged due to collision with obstacles higher than the ground; the ladder is unfolded by overturning the mounting ladder, so that the climbing of personnel when the machine is overhauled is more convenient, and the ground clearance of the overhauling ladder at the moment meets the standard of the escalator. This maintenance ladder assembly has simple structure, characteristics that the practicality is strong.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, 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 without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic view of the installation of the maintenance ladder of the present invention;
FIG. 2 is a schematic view of the installation of the middle left overhaul ladder of the utility model;
FIG. 3 is a schematic view of the non-use state of the middle maintenance ladder of the present invention;
fig. 4 is the utility model discloses well access ladder user state schematic diagram.
In the figure: 1, a frame; 2. a right overhaul ladder; 3. a left service ladder; 3.1 Fixing the ladder; 3.2 Mounting a ladder; 3.3 A short armrest; 3.4 A long armrest; 3.5 A connecting rod; 3.6 A guardrail; 3.7 Hinge points (holed bolts, slotted nuts, pins); 3.1.1 An L-shaped bolt; 3.1.2 Feeding a pipe; 3.1.3 A limiting block; 3.2.1 A lower pipe; 3.2.2 And (4) a handle.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments, and the following embodiments are used to illustrate the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the mining dump truck access ladder assembly comprises a right access ladder 2 and a left access ladder 3 which are arranged on a frame 1, wherein the left access ladder 3 and the right access ladder 2 are symmetrical parts. The maintenance ladder comprises components such as a fixed ladder, an installation ladder, a short handrail, a long handrail, a connecting rod and a guardrail, and the components are connected through a plurality of standard parts. The fixed ladder is hinged with the installation ladder, and the installation ladder can be freely turned over on the fixed ladder. When the maintenance ladder is in a non-use state, the mounting ladder is turned upwards, and an L-shaped bolt with a chain is inserted into the upper pipe and the lower pipe to fold and fix the mounting ladder on the fixed ladder; when the maintenance ladder is in a use state, the L-shaped bolt with the chain is pulled out from the lower pipe and the upper pipe, the installation ladder is overturned downwards by the handheld handle, the installation ladder is limited on the same direction of the fixed ladder by the limiting block, and the comfort of personnel when climbing the pedal is guaranteed.
A preferred embodiment of the above described access ladder is given below in connection with the accompanying drawings:
as shown in fig. 2, the left access ladder 3 includes a fixed ladder 3.1, an installation ladder 3.2, a short handrail 3.3, a long handrail 3.4, a connecting rod 3.5 and a guardrail 3.6. The fixed ladder 3.1 and the mounting ladder 3.2 are connected by adopting a bolt with a hole, a slotted nut and a pin to form a hinge point 3.7, so that the mounting ladder 3.2 can be ensured to be freely turned over; the short handrail 3.3, the long handrail 3.4, the connecting rod 3.5 and the guardrail 3.6 are connected to the fixed ladder 3.1 and the frame 1 through standard parts, and play a role in protecting personnel safety when the personnel overhaul machine climbs the pedal.
The fixed ladder 3.1 consists of a plurality of pedals I arranged in the middle and supporting plates I arranged on two sides; the mounting ladder 3.2 consists of a plurality of pedals II arranged in the middle and supporting plates II arranged on two sides; the perforated bolt penetrates through the support plate I and the support plate II, the support plate I and the support plate II are fastened on the perforated bolt through the slotted nut, and the pin is inserted into the notch of the slotted nut and the through hole of the perforated bolt.
A preferred embodiment of the above described fixed ladder is given below with reference to the accompanying drawings:
as shown in fig. 3, the fixing ladder 3.1 includes components such as an L-shaped bolt 3.1.1, an upper tube 3.1.2 and a limiting block 3.1.3, the L-shaped bolt 3.1.1 is welded to the side surface of the fixing ladder 3.1 through a chain, the upper tube 3.1.2 is also welded to the side surface, and the L-shaped bolt 3.1.1 can freely penetrate through the upper tube 3.1.2; the limiting blocks 3.1.3 are welded at the lower ends of the two side faces of the fixed ladder 3.1 at a certain angle with the vertical face, play a limiting role on the installation ladder 3.2 when unfolded, and limit the installation ladder in the same direction of the fixed ladder 3.1.
A preferred embodiment of the above described installation ladder is given below in connection with the accompanying drawings:
as shown in fig. 4, the installation ladder 3.2 includes components such as a lower tube 3.2.1 and a handle 3.2.2, the lower tube 3.2.1 is arranged at the right lower end of the upper tube 3.1.2 and welded to the side surface of the installation ladder 3.2, and the upper tube 3.1.2 and the lower tube 3.2.1 need to meet the requirement that the L-shaped bolt 3.1.1 can be freely inserted and pulled out at the same time; the handle 3.2.2 is welded to the outer side of the lowest step of the mounting ladder 3.2.
When the access ladder is in a non-use state, the access ladder is as shown in figure 3, the mounting ladder 3.2 is overturned upwards around the hinge point 3.7, the L-shaped bolt 3.1.1 with the chain is inserted into the upper pipe 3.1.2 and the lower pipe 3.2.1, and the mounting ladder 3.2 is fixed on the fixed ladder 3.1 in a folding way. The installation ladder 3.2 is folded by overturning, so that the left and right maintenance ladders can keep a certain safety distance with the ground when the mining dump truck operates, and the maintenance ladders are prevented from being damaged due to collision with obstacles higher than the ground.
When the overhaul ladder is in a use state, the overhaul ladder is as shown in figure 4, the L-shaped bolt 3.1.1 with the chain is pulled out from the lower pipe 3.2.1 and the upper pipe 3.1.2, the hand-held handle 3.2 overturns the installation ladder 3.2 downwards around the hinge point 3.7, the limiting block 3.1.3 limits the installation ladder 3.2 to the same A direction of the fixed ladder 3.1, the installation ladder 3.2 is unfolded through overturning, more convenient climbing of personnel during overhaul of the machine can be ensured, and the ground clearance of the overhaul ladder at the moment can meet the standard of the ladder.
The structure shows that the left overhaul ladder 3 and the right overhaul ladder 2 can keep a certain safety distance with the ground when the mining dump truck runs by turning over the mounting ladder 3.2 to fold the mounting ladder, so that the overhaul ladder is prevented from being damaged due to collision with an obstacle higher than the ground; the installation ladder 3.2 is unfolded through overturning, so that the climbing of personnel when the machine is overhauled is more convenient, and the ground clearance of the overhaul ladder at the moment meets the standard of the escalator. This maintenance ladder assembly has simple structure, characteristics that the practicality is strong.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments, not others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can combine the technical solutions and technical problems to be solved by the present application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.
Claims (11)
1. A reversible service ladder, comprising:
the fixed ladder is composed of a plurality of pedals I arranged in the middle and supporting plates I arranged on two sides;
the mounting ladder is composed of a plurality of pedals II arranged in the middle and supporting plates II arranged on two sides, and the supporting plates II on the two sides are hinged to the supporting plates I on the two sides, so that the mounting ladder can be freely turned over on the fixed ladder;
the connecting component is fixed on the fixed ladder, when the maintenance ladder is in a non-use state, the mounting ladder turns upwards around the hinge point, and the mounting ladder is folded and fixed on the fixed ladder through the mounting connecting component; when the access ladder is in a use state, the mounting ladder is turned downwards around the hinge point and then limited on the fixed ladder by removing the connecting component.
2. The reversible access ladder of claim 1, wherein said connecting member comprises:
the upper pipe is fixed on the outer side surface of the support plate I;
the lower pipe is fixed on the outer side face of the support plate II, and is positioned at the right lower end of the upper pipe after the mounting ladder is folded on the fixing ladder;
the L-shaped bolt can be freely inserted and pulled in the upper pipe when the maintenance ladder is in a use state; when the maintenance ladder is in a non-use state, the L-shaped bolt can be simultaneously and freely inserted and pulled in the upper pipe and the lower pipe.
3. The reversible access ladder of claim 2, wherein said connection member further comprises:
and one end of the chain is connected with the L-shaped bolt, and the other end of the chain is connected with the support plate I.
4. The reversible access ladder of claim 1, wherein:
the hinge point is composed of a bolt with a hole, a slotted nut and a pin;
the perforated bolt penetrates through the support plate I and the support plate II, the support plate I and the support plate II are fastened on the perforated bolt through the slotted nut, and the pin is inserted into the notch of the slotted nut and the through hole of the perforated bolt.
5. The reversible access ladder of claim 1, wherein:
the lower ends of the outer side surfaces of the supporting plates I on the two sides are respectively fixed with a limiting block, and the limiting blocks play a limiting role when the mounting ladder is unfolded.
6. The reversible access ladder of claim 5, wherein:
the limiting blocks are fixed on the outer side face of the supporting plate I at a preset angle with the vertical face, and the limiting blocks are used for fixing the supporting plate I on the outer side face
The mounting ladders are limited to the same direction of the fixed ladder.
7. The reversible access ladder of claim 1, wherein:
the outer side of the pedal at the lowest end of the mounting ladder is connected with a handle.
8. The reversible access ladder of claim 1, further comprising:
and the protective assembly is arranged near the fixed ladder and is used as a handrail and a guardrail.
9. The reversible access ladder of claim 8, wherein said guard assembly comprises:
the long handrail and the short handrail are respectively fixed on two sides of the fixed ladder;
a guard rail provided on the frame on the short handrail side;
and the bottom end of the connecting rod is connected with the short handrail, and the top end of the connecting rod is connected with the protective guard.
10. The utility model provides a mining dump truck access ladder assembly, includes the frame, its characterized in that:
a reversible service ladder as claimed in any one of claims 1 to 9 arranged symmetrically on each side of the frame.
11. A mining dump truck is characterized in that:
a reversible service ladder as claimed in any one of claims 1 to 9; alternatively, a mining dump truck access ladder assembly as defined in claim 10 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221484582.1U CN217532709U (en) | 2022-06-15 | 2022-06-15 | Reversible overhaul ladder, mining dump truck overhaul ladder assembly and mining dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221484582.1U CN217532709U (en) | 2022-06-15 | 2022-06-15 | Reversible overhaul ladder, mining dump truck overhaul ladder assembly and mining dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217532709U true CN217532709U (en) | 2022-10-04 |
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ID=83420288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221484582.1U Active CN217532709U (en) | 2022-06-15 | 2022-06-15 | Reversible overhaul ladder, mining dump truck overhaul ladder assembly and mining dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217532709U (en) |
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2022
- 2022-06-15 CN CN202221484582.1U patent/CN217532709U/en active Active
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