Folding guardrail structure and engineering machinery

Abstract

The utility model discloses a folding type guardrail structure and engineering machinery. The folding type guardrail structure comprises a lower guardrail, an upper guardrail, a hinge assembly, a first fastening component and a limiting component, the hinge assembly is installed between the lower guardrail and the upper guardrail, and the upper guardrail can rotate by any angle of 0-180 degrees on the lower guardrail around a hinge point. The first fastening part is used for limiting the upper guardrail and the lower guardrail when the upper guardrail and the lower guardrail are located on the same plane, so that the upper guardrail cannot rotate; and the limiting component is used for limiting the upper guardrail rotating on the lower guardrail, so that the upper guardrail cannot further rotate. According to the scheme of the folding type guardrail, the guardrail can be quickly folded when medium-large engineering machinery is transported to be ultrahigh after being provided with the guardrail, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to a novel folding guardrail structure and belongs to the field of engineering machinery. Background Art

[0002] For medium and large construction machinery, a maintenance platform is usually provided on the top, and a safety guardrail is provided around the maintenance platform. Existing safety guardrails are usually made of a steel pipe bent into a U shape as the main body, with a cross bar welded in the middle to strengthen the main body, and two bent plates with bolt holes welded at the bottom of the main body for installing and fixing the guardrail.

[0003] In order for the guardrail to meet the protection requirements, it must reach a certain height, and relevant laws and regulations also have requirements for the height of the guardrail itself. However, when construction machinery is transferred and transported, it needs to meet the relevant height limit laws and regulations. For medium and large construction machinery, its height is large. When the construction machinery is transported by a transport vehicle, its own height is close to the height limit. The guardrail installed on the top of the construction machinery makes the overall transportation height exceed the limit.

[0004] In order to avoid the height exceeding the limit during transportation, the guardrail is usually dismantled. However, dismantling the guardrail is time-consuming and laborious. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a foldable guardrail structure, which splits the original integral guardrail into an upper guardrail and a lower guardrail. By utilizing a hinge structure, the upper guardrail can be rotated around the hinge axis, thereby folding the upper guardrail into any angle of 0 to 180 degrees, effectively reducing the height of the guardrail while facilitating disassembly and assembly.

[0006] The utility model is implemented according to the following technical solutions:

[0007] In a first aspect, the utility model discloses a foldable guardrail structure, comprising:

[0008] Lower guardrail, upper guardrail;

[0009] A hinge assembly is installed between the lower guardrail and the upper guardrail, and the upper guardrail can rotate around the hinge point on the lower guardrail at any angle of 0-180 degrees;

[0010] The first fastening component is used to limit the upper guardrail and the lower guardrail when they are in the same plane, so that the upper guardrail cannot rotate;

[0011] The limiting component is used to limit the upper guardrail rotating on the lower guardrail so that the upper guardrail cannot rotate further.

[0012] In some embodiments, the upper guardrail is composed of a first rod-shaped component and a first mounting plate; the lower guardrail is composed of a second rod-shaped component and a second mounting plate; the first mounting plate and the second mounting plate are connected via the hinge assembly.

[0013] In some embodiments, the first mounting plate is an angle plate I with an angle of 90 degrees; the second mounting plate is composed of an angle plate II with an angle of 90 degrees and a vertical plate perpendicular to the bottom plate of angle plate II; when the upper guardrail and the lower guardrail are at 0 degrees, the bottom plate of angle plate I is fitted together with the bottom plate of angle plate II, so that angle plate I and angle plate II form a U-shaped plate; after angle plate I is flipped 90 degrees on angle plate II, the angle between the upper guardrail and the lower guardrail is 90 degrees.

[0014] In some embodiments, the hinge assembly is a hinge; one hinge plate of the hinge is fixed on the bottom surface of the bottom plate of angle plate I, and the other hinge plate of the hinge is fixed on the vertical plate of angle plate II after passing through the through hole reserved in the bottom plate of angle plate II.

[0015] In some embodiments, one hinge plate of the hinge is welded or fixed to the bottom plate of the angle plate I by bolts, and the other hinge plate of the hinge is welded or fixed to the vertical plate of the angle plate II by bolts.

[0016] In some embodiments, the through hole reserved in the bottom plate of angle plate II is larger than the hinge plate on angle plate I, and the hinge plate extends into the through hole reserved in the bottom plate of angle plate II, so that the bottom plates of angle plate I and angle plate II fit together.

[0017] In some embodiments, the first fastening component is a bolt and a welding nut; the bottom plate of the angle plate I and the bottom plate of the angle plate II are each provided with at least one coaxially arranged through hole, and a welding nut coaxial with the through hole is fixed on the bottom surface of the bottom plate of the angle plate II, and the angle plate I and the angle plate II are fixed together by bolts.

[0018] In some embodiments, after the corner panel I is flipped 90 degrees on the corner panel II, the bottom plate of the corner panel I and the side plate of the corner panel II are fitted together to form a limiting component.

[0019] In some embodiments, the bottom plate of the angle panel I and the side plate of the angle panel II are fitted together and fixed together by a second fastening component, so that the upper guardrail cannot rotate.

[0020] In some embodiments, the second fastening component is a bolt and a welding nut; at least one coaxially arranged through hole is provided on the bottom plate of the angle plate I and the side plate of the angle plate II, and a welding nut coaxial with the through hole is fixed on the outer side surface of the side plate of the angle plate II, and the angle plate I and the angle plate II are fixed together by bolts.

[0021] In some embodiments, the first rod-shaped portion is an n-shaped rod; the second rod-shaped component is composed of a pair of vertical rods opposed to each other, and an L-shaped leg is fixed to the lower part of the vertical rod, and the L-shaped leg is provided with at least one long hole.

[0022] In a second aspect, the utility model discloses an engineering machine equipped with the above-mentioned foldable guardrail structure.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The foldable guardrail solution adopted by the utility model can quickly fold the guardrail when medium and large-sized engineering machinery is transported at an ultra-high height due to being equipped with the guardrail, thus saving time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0026] In the attached picture:

[0027] Figure 1 It is a structural diagram of the foldable guardrail structure of the utility model in an unfolded state;

[0028] Figure 2 It is a structural diagram of the foldable guardrail structure of the utility model in a folded state;

[0029] Figure 3 This is a schematic diagram of the installation of the lower guardrail and hinge of the utility model;

[0030] Figure 4 It is a comparative structural diagram of the foldable guardrail structure of the utility model at 0 degrees and 90 degrees.

[0031] Figure identification: 1-upper guardrail, 2-lower guardrail, 3-bolt, 4-washer, 5-bolt, 6-washer, 7-hinge.

[0032] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1 , Figure 2 , Figure 4 As shown, a foldable guardrail structure includes a lower guardrail 2, an upper guardrail 1, a hinge assembly, a first fastening component and a limiting component; the hinge assembly is installed between the lower guardrail 2 and the upper guardrail 1, and the upper guardrail 1 can rotate on the lower guardrail 2 at any angle of 0-180 degrees around the hinge point; the first fastening component is used to limit the upper guardrail 1 and the lower guardrail 2 when they are in the same plane, so that the upper guardrail 1 cannot rotate; the limiting component is used to limit the upper guardrail 1 rotating on the lower guardrail 2, so that the upper guardrail 1 cannot rotate further.

[0037] A preferred embodiment of the above embodiment regarding the upper guardrail and the lower guardrail is given below:

[0038] like Figure 1 , Figure 2 , Figure 3 As shown, the upper guardrail 1 is composed of a first rod-shaped component and a first mounting plate; the lower guardrail 2 is composed of a second rod-shaped component and a second mounting plate; the first mounting plate and the second mounting plate are connected by a hinge assembly.

[0039] A further solution: the first mounting plate is an angle plate I with an angle of 90 degrees; the second mounting plate consists of an angle plate II with an angle of 90 degrees and a vertical plate perpendicular to the bottom plate of angle plate II; when the upper guardrail 1 and the lower guardrail 2 are at 0 degrees, the bottom plate of angle plate I fits together with the bottom plate of angle plate II, so that angle plate I and angle plate II form a U-shaped plate; after angle plate I is flipped 90 degrees on angle plate II, the angle between the upper guardrail 1 and the lower guardrail 2 is 90 degrees.

[0040] Further solutions: Figure 2 , Figure 3 As shown, the hinge assembly is a hinge 7; one hinge plate of the hinge 7 is fixed to the bottom surface of the bottom plate of the angle plate I, and the other hinge plate of the hinge 7 is fixed to the vertical plate of the angle plate II after passing through the through hole reserved in the bottom plate of the angle plate II.

[0041] It should be noted that the hinge assembly is not limited to the above-mentioned hinge, and any connection structure that can realize the rotation function between the lower guardrail and the upper guardrail falls within the protection scope of the present utility model.

[0042] Preferred solution: one hinge plate of the hinge 7 is welded to the bottom plate of the angle plate I, and the other hinge plate of the hinge 7 is fixed to the vertical plate of the angle plate II by bolts 5 and washers 6. The upper guardrail 1 can be easily disassembled from the lower guardrail 2 by the bolt connection.

[0043] A further solution is that the size of the through hole reserved in the bottom plate of angle plate II is larger than the hinge plate on angle plate I, and the hinge plate extends into the through hole reserved in the bottom plate of angle plate II, so that the bottom plate of angle plate I fits together with the bottom plate of angle plate II.

[0044] A preferred embodiment of the above embodiment regarding the first fastening component is given below:

[0045] like Figure 1 As shown, the first fastening component is a bolt 3, a washer 4 and a welding nut; at least one coaxially arranged through hole is provided on the bottom plate of angle plate I and the bottom plate of angle plate II, and a welding nut coaxial with the through hole is fixed on the bottom surface of the bottom plate of angle plate II, and angle plate I and angle plate II are fixed together by bolts 3 and washers 4.

[0046] It should be noted that the first fastening component is not limited to the above-mentioned bolts and welding nuts, and the two can also be fixed by the cooperation of a pin shaft and a cotter pin. Therefore, as long as the connection structure can achieve the fixing function between the lower guardrail and the upper guardrail, it falls within the protection scope of the present utility model.

[0047] A further solution: after the angle plate I is flipped 90 degrees on the angle plate II, the bottom plate of the angle plate I and the side plate of the angle plate II are fitted together to form a limiting component.

[0048] A further solution is that the bottom plate of the angle plate I and the side plate of the angle plate II are fitted together and fixed together by a second fastening component, so that the upper guardrail cannot rotate.

[0049] A preferred embodiment of the above embodiment regarding the second fastening component is given below:

[0050] The second fastening components are bolts 3, washers 4 and welding nuts; at least one coaxially arranged through hole is provided on the bottom plate of angle plate I and the side plate of angle plate II, and a welding nut coaxial with the through hole is fixed on the outer side surface of the side plate of angle plate II, and angle plate I and angle plate II are fixed together by bolts 3.

[0051] It should be noted that the second fastening component is not limited to the above-mentioned bolts and welding nuts, and the two can also be fixed by cooperating with a pin shaft and a cotter pin. Therefore, as long as the connection structure can achieve the fixing function between the lower guardrail and the upper guardrail, it falls within the protection scope of the present utility model.

[0052] like Figure 1 , Figure 2 , Figure 3 As shown, the first rod-shaped part is an N-shaped rod; the second rod-shaped part is composed of a pair of vertical rods facing each other, and an L-shaped leg is fixed at the lower part of the vertical rod, and at least one long hole is provided on the L-shaped leg.

[0053] It should be noted that the first rod-shaped portion and the second rod-shaped portion are not limited to the above-mentioned structure and can be changed accordingly according to actual needs.

[0054] The utility model also provides an engineering machine equipped with the foldable guardrail structure.

[0055] like Figure 1 As shown, when the guardrail is used, the upper guardrail 1 is located on the upper part of the lower guardrail 2 and is connected and fastened by bolts 3 and washers 4. The bottom of the upper guardrail 1 is bolted or welded with a hinge 7, and the other side of the hinge 7 is fixed to the lower guardrail 2 with bolts 5 and washers 6. The hinge 7 can rotate flexibly around its axis.

[0056] When the construction machinery is too high and needs to be transported, remove the attached Figure 1 With the middle bolt 3 and washer 4, the upper guardrail 1 can rotate around the rotating shaft of the hinge 7. Figure 2 When in status, you can press Figure 2 The upper guardrail 1 is fastened to the lower guardrail using bolts 3 and washers 4.

[0057] The utility model splits the original integral guardrail into an upper guardrail and a lower guardrail, and utilizes a hinge structure to realize that the upper guardrail can rotate around the hinge axis, so that the upper guardrail can be folded into 90 degrees, effectively reducing the height of the guardrail and facilitating disassembly and assembly.

[0058] It should be noted that in the above embodiment, the angle plate II of the lower guardrail is 90 degrees, so the upper guardrail can only rotate to 90 degrees and stop. Of course, in actual needs, if the angle plate II of the lower guardrail is 120 degrees, then the upper guardrail can rotate to 120 degrees and stop.

[0059] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0060] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0061] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A foldable guardrail structure, characterized in that: include: Lower guardrail, upper guardrail; A hinge assembly is installed between the lower guardrail and the upper guardrail, and the upper guardrail can rotate around the hinge point on the lower guardrail at any angle of 0-180 degrees; The first fastening component is used to limit the upper guardrail and the lower guardrail when they are in the same plane, so that the upper guardrail cannot rotate; The limiting component is used to limit the upper guardrail rotating on the lower guardrail so that the upper guardrail cannot rotate further.

2. A foldable guardrail structure according to claim 1, characterized in that: The upper guardrail is composed of a first rod-shaped component and a first mounting plate; the lower guardrail is composed of a second rod-shaped component and a second mounting plate; the first mounting plate and the second mounting plate are connected via the hinge assembly.

3. A foldable guardrail structure according to claim 2, characterized in that: The first mounting plate is an angle plate I with an included angle of 90 degrees; the second mounting plate is composed of an angle plate II with an included angle of 90 degrees and a vertical plate perpendicular to the bottom plate in the angle plate II; When the upper guardrail and the lower guardrail are at 0 degrees, the bottom plate of the angle plate I and the bottom plate of the angle plate II are attached together, so that the angle plate I and the angle plate II form a U-shaped plate; After the angle plate I is flipped 90 degrees on the angle plate II, the angle between the upper guardrail and the lower guardrail is 90 degrees.

4. A foldable guardrail structure according to claim 3, characterized in that: The hinge assembly is a hinge; one hinge plate of the hinge is fixed on the bottom surface of the bottom plate of the angle plate I, and the other hinge plate of the hinge is fixed on the vertical plate of the angle plate II after passing through the through hole reserved in the bottom plate of the angle plate II.

5. A foldable guardrail structure according to claim 4, characterized in that: One hinge plate of the hinge is welded or fixed to the bottom plate of the angle plate I by bolts, and the other hinge plate of the hinge is welded or fixed to the vertical plate of the angle plate II by bolts.

6. A foldable guardrail structure according to claim 5, characterized in that: The size of the through hole reserved in the bottom plate of the angle plate II is larger than the hinge plate located on the angle plate I, and the hinge plate extends into the through hole reserved in the bottom plate of the angle plate II, so that the bottom plates of the angle plates I and II fit together.

7. The foldable guardrail structure according to claim 3, characterized in that: The first fastening component is a bolt and a welding nut; the bottom plate of the angle plate I and the bottom plate of the angle plate II are each provided with at least one coaxially arranged through hole, and a welding nut coaxial with the through hole is fixed on the bottom surface of the bottom plate of the angle plate II, and the angle plate I and the angle plate II are fixed together by bolts.

8. The foldable guardrail structure according to claim 3, characterized in that: After the angle plate I is flipped 90 degrees on the angle plate II, the bottom plate of the angle plate I and the side plate of the angle plate II are fitted together to form a limiting component.

9. A foldable guardrail structure according to claim 8, characterized in that: The bottom plate of the angle plate I and the side plate of the angle plate II are fitted together and fixed together by a second fastening component, so that the upper guardrail cannot rotate.

10. A foldable guardrail structure according to claim 9, characterized in that: The second fastening components are bolts and welding nuts; at least one coaxially arranged through hole is provided on the bottom plate of the angle plate I and the side plate of the angle plate II, and a welding nut coaxial with the through hole is fixed on the outer side surface of the side plate of the angle plate II, and the angle plate I and the angle plate II are fixed together by bolts.

11. The foldable guardrail structure according to claim 2, characterized in that: The first rod-shaped part is an n-shaped rod; the second rod-shaped part is composed of a pair of vertical rods facing each other, and an L-shaped leg is fixed at the lower part of the vertical rod, and at least one long hole is provided on the L-shaped leg.

12. An engineering machine, characterized in that: A foldable guardrail structure according to any one of claims 1 to 11 is installed.

Images