Handrail for excavator and excavator

Abstract

The utility model discloses a handrail for an excavator and the excavator with the handrail, and belongs to the technical field of engineering machinery. The defects that in the prior art, cost is increased due to the overall mass of a traditional excavator handrail, and parts assembled with the traditional excavator handrail are prone to being torn due to the large mass of the handrail are overcome. The main body structure of the device comprises a handle, a supporting pipe and a mounting base of a C-shaped structure, the mounting base comprises an inclined strut and a bottom plate which are of an integrated structure, a through hole is formed in the inclined strut, the bottom of the handle penetrates through the through hole in the inclined strut and then is fixedly connected with the bottom plate, and after the handle penetrates through the through hole in the inclined strut, the handle is connected with the inclined strut at the through hole in a welded mode; the supporting pipe is a bent pipe, one end of the supporting pipe is fixedly connected with the handle, and the other end of the supporting pipe is fixedly connected with a bottom plate on the installation base. The utility model is mainly applied to engineering machinery such as excavators and the like.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, and more specifically, it relates to a handrail for an excavator and the excavator thereof. Background Technology

[0002] In the field of construction machinery, excavators are indispensable construction machines that often face various harsh working environments. The walkway is essential for machine maintenance and repair. As a handrail in the walkway, it is not only for easy gripping when passing through the walkway, but more importantly, to protect the safety of people. Therefore, the strength and reliability of the handrail are particularly important.

[0003] The vibrations of an excavator during operation cause the handrail to sway. Prolonged vibration can damage the handrail, thus affecting operator safety. Current technology uses thicker steel pipes as handrails and welds heavy-duty reinforcing plates (8) to both sides of the pipes as support ribs. Figure 5 As shown, the above solution has the following shortcomings: the steel pipe used as the handrail for the walking passage is relatively thick, and thick welded ribs 8 are welded on both sides as supporting ribs. Although it can ensure that the handrail for the walking passage will not be damaged by the vibration of the machine, it will increase the overall weight of the handrail. This not only increases the cost, but also makes it easy to tear the parts assembled with it (such as the fuel tank) due to the large weight and inertia of the handrail. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a handrail for an excavator and an excavator thereof.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A handle for an excavator includes a handle, a support tube, and a C-shaped mounting base. The mounting base includes an integrally formed diagonal brace and a base plate. The diagonal brace has a through hole. The bottom of the handle passes through the through hole on the diagonal brace and is fixedly connected to the base plate. The handle is welded to the diagonal brace at the through hole. The support tube is a bent tube, and one end of the support tube is fixedly connected to the handle, while the other end is fixedly connected to the base plate on the mounting base.

[0007] Preferably, a stiffening rib is provided between the handle and the support tube, and the lower end face of the stiffening rib is welded to the base plate on the mounting base.

[0008] Preferably, the bending angle of the diagonal brace on the mounting base is 110° to 160°.

[0009] Preferably, the mounting base is provided with mounting holes for connecting to an excavator.

[0010] Preferably, the handle is a walkway handle.

[0011] Preferably, the walkway handle has a U-shaped structure.

[0012] Preferably, the walkway handle is provided with a reinforcing tube to enhance the rigidity of the handle.

[0013] Preferably, the handle is a vehicle entry handle.

[0014] Preferably, the handlebar is made of an integral bent tube.

[0015] An excavator is provided with a handrail as described in any of the above claims, and the base plate on the mounting base is connected to the excavator via mounting holes, bolts, and washers.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By passing the handle through the through hole on the diagonal brace and fixing it to the base plate, and by setting stiffeners between the handle and the support tube, the overall structural stability of the handrail is enhanced, and the safety of the operator when using the handrail is guaranteed even in harsh working environments.

[0018] 2. The bending angle of the diagonal brace on the mounting base is preferably 120° to 150°. By increasing the welding area between the mounting base and the handle, the strength is increased. At the same time, the handle can better adapt to different models of excavators and different installation position requirements, thus improving the versatility and applicability of the product.

[0019] 3. The mounting base is equipped with mounting holes for connecting to the excavator, which not only simplifies the installation process of the handrail, but also makes it more convenient and quick when maintenance or replacement is needed;

[0020] 4. The handrails are divided into two types: walking passage handles and boarding handles. The walking passage handles adopt a U-shaped structure, while the boarding handles are made of an integral bent tube. Both take into account the actual use of the operators, conform to the principles of ergonomics, reduce fatigue caused by long-term operation, and improve work efficiency.

[0021] 5. Reinforcing tubes are installed on the handrails of the walking passage to increase the rigidity of the handrails, which effectively prevents deformation caused by long-term use and extends the service life of the handrails.

[0022] In summary, this utility model overcomes the problems of large mass and poor reliability of excavator walkway handrails in the prior art. Compared with existing handrails, this utility model uses a support tube, which replaces the original welded stiffener as the support rib, and can also use a handle with a smaller outer diameter, greatly reducing the overall weight of the handrail. The weight of the handrail of this utility model is reduced by 40% to 60% compared with the existing handrails, effectively avoiding damage to the components assembled with it (such as the fuel tank). Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0024] Figure 2 This is a schematic diagram of the mounting base in this utility model;

[0025] Figure 3 This is a schematic diagram showing the bending angle of the diagonal brace on the mounting base in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of a walking channel handle in the prior art.

[0028] In the diagram: 1. Handle; 2. Reinforcing tube; 3. Support tube; 4. Mounting base; 5. Rib plate; 6. Bolt; 7. Washer; 8. Welded rib plate; 9. Handle on the vehicle; 41. Through hole; 42. Mounting hole; 43. Diagonal brace; 44. Base plate. Detailed Implementation

[0029] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0030] Example 1:

[0031] like Figure 1-2As shown, a handrail for an excavator includes a handle 1, a support tube 3, and a C-shaped mounting base 4. The mounting base 4 includes an integrally formed diagonal brace 43 and a base plate 44. The diagonal brace 43 has a through hole 41. The bottom of the handle 1 passes through the through hole 41 on the diagonal brace 43 and is welded to the base plate 44. The handle 1 passes through the through hole 41 on the diagonal brace 43 and is welded to the diagonal brace 43 at the through hole 41. The support tube 3 is a bent tube, and one end of the support tube 3 is welded to the handle 1, and the other end is welded to the base plate 44 on the mounting base 4. In this embodiment, the support tube 3 replaces the existing welded stiffener 8, which can effectively resist the shaking of the handrail when the excavator vibrates. The structure is lightweight, and the C-shaped mounting base 4 can effectively resist the shaking of the handrail in another direction. Through the cooperation of the support tube 3 and the C-shaped mounting base 4, the strength and reliability of the handrail in the walking passage are improved.

[0032] like Figure 3 As shown, the bending angle θ of the diagonal brace 43 on the mounting base 4 is 110° to 160°. In this embodiment, the bending angle θ of the diagonal brace 43 on the mounting base 4 is preferably 120° to 150°. Its functions are twofold: first, to increase the welding area between the mounting base 4 and the handle 1 and increase the strength; and second, to enhance the aesthetics.

[0033] Furthermore, a stiffening plate 5 is provided between the handle 1 and the support tube 3, and the lower end face of the stiffening plate 5 is welded to the base plate 44 on the mounting base 4. Welding is performed at the contact points of the handle 1, the support tube 3, the mounting base 4 and the stiffening plate 5, which further enhances the stability of the overall structure of the handrail.

[0034] Example 2:

[0035] For example Figure 1 As shown, a handrail for an excavator differs from Embodiment 1 in that the handle 1 is a travel channel handle with a U-shaped structure, and a reinforcing tube 2 is provided on the travel channel handle to enhance the rigidity of the handle 1. The two ends of the reinforcing tube 2 are welded to the two sides of the U-shaped handle 1, respectively. By welding the reinforcing tube 2 to the travel channel handle to increase the rigidity of the handle 1, the deformation problem caused by long-term use is effectively prevented, and the service life of the handrail is extended.

[0036] Example 3:

[0037] like Figure 4 As shown, a handrail for an excavator differs from Embodiment 1 in that the handle 1 is an upper handle 9, which is made of an integral bent tube, and at least one end of the two ends of the handle 1 adopts the handrail structure described in Embodiment 1.

[0038] Example 4:

[0039] An excavator is provided with a handrail as described in any of the embodiments 1-3 above. The mounting base 4 is provided with mounting holes 42 for connecting to the excavator. The base plate 44 on the mounting base 4 is fixedly connected to the excavator through the mounting holes 42, bolts 6 and washers 7. By providing mounting holes 42 on the mounting base 4, the installation process of the handrail is not only simplified, but also more convenient and quick when maintenance or replacement is required.

[0040] Compared with existing handrails, this invention replaces the existing welded stiffener plate 8 with a support tube 3. While replacing the original welded stiffener plate 8 as a supporting rib, it allows for the use of a handle 1 with a smaller outer diameter, significantly reducing the overall weight of the handrail. Therefore, it eliminates the need for exceptionally thick tubes to achieve the required strength, and the reduced weight has a smaller impact on the overall machine. The handrail of this invention is 40% to 60% lighter than existing handrails, effectively preventing damage to assembled components (such as the fuel tank).

Claims

1. A handle for an excavator, characterized in that: It includes a handle (1), a support tube (3), and a C-shaped mounting base (4). The mounting base (4) includes an integrally formed diagonal brace (43) and a base plate (44). The diagonal brace (43) is provided with a through hole (41). The bottom of the handle (1) passes through the through hole (41) on the diagonal brace (43) and is fixedly connected to the base plate (44). The support tube (3) is a bent tube, and one end of the support tube (3) is fixedly connected to the handle (1), and the other end is fixedly connected to the base plate (44) on the mounting base (4).

2. The handrail for an excavator according to claim 1, characterized in that: A stiffening plate (5) is provided between the handle (1) and the support tube (3).

3. The handrail for an excavator according to claim 2, characterized in that: The bending angle of the diagonal brace (43) on the mounting base (4) is 110° to 160°.

4. The handrail for an excavator according to claim 3, characterized in that: The mounting base (4) is provided with mounting holes (42) for connecting to an excavator.

5. The handrail for an excavator according to claim 1, characterized in that: The handle (1) is a walkway handle.

6. The handrail for an excavator according to claim 5, characterized in that: The walkway handle has a U-shaped structure.

7. The handrail for an excavator according to claim 5, characterized in that: The walking channel handle is provided with a reinforcing tube (2) to enhance the rigidity of the handle (1).

8. The handrail for an excavator according to claim 1, characterized in that: The handle (1) is the boarding handle (9).

9. The handrail for an excavator according to claim 8, characterized in that: The handle (9) is made of an integral bent tube.

10. An excavator, characterized in that: The excavator is equipped with a handrail as described in any one of claims 1-9.

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