Excavator cab and turnover protective net device thereof

Abstract

The utility model discloses an excavator cab and a reversible protective net device thereof, the reversible protective net device comprises a first protective net arranged at the upper part of one side of the cab and a second protective net arranged below the first protective net, one end of the first protective net is hinged to the cab through a plurality of hinge assemblies, and the other end of the first protective net is hinged to the cab through a plurality of hinge assemblies. One end of the first protective net is fixedly connected to the cab through a plurality of first fixing plates, the other end of the first protective net is fixedly connected to the cab through a plurality of second fixing plates, the second protective net is fixed to the lower portion of one side of the cab, a plurality of first grids are evenly and vertically distributed on the first protective net, a plurality of second grids are evenly and vertically distributed on the second protective net, and the first grids are radially inclined by a preset angle along the center line in the width direction of the first protective net; the device can effectively resist impact of splashes in the excavation operation process, the integrity of a driving space and the personal safety of a driver are guaranteed, the first grids are obliquely arranged in the radial shape, and compared with traditional grids arranged in parallel, the first grids can effectively reduce blocking of the sight of the driver, the view field of the driver is expanded, and the safety of the driver is improved. And the visual blind area is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of excavator protection technology, specifically relating to an excavator cab and its tiltable protective netting device. Background Technology

[0002] In the field of earthwork construction, excavators are the core operating equipment, and the safety and ease of operation of their cabs are of paramount importance. When excavators are performing high-intensity operations such as digging and loading, flying soil and rocks may impact the windshield of the cab, posing a risk of glass breakage and foreign objects entering the cab, which seriously threatens the personal safety of the driver. Therefore, installing a protective net in front of the cab has become a standard protective measure in the industry. Its core function is to build a physical barrier to effectively buffer and block the impact of flying objects and ensure the integrity of the driving space.

[0003] In existing technologies, the front guard net of the cab is usually rigidly connected to the cab frame by bolts and other fasteners to form a fixed protective structure. The guard net mainly adopts two typical structural forms: round steel and plate. The round steel guard net is composed of multiple parallel round steel bars forming a grid, which uses the impact resistance of metal materials to achieve protection. The plate guard net is composed of strips of a certain width arranged at intervals, which increases the protective ability by increasing the structural rigidity.

[0004] However, such protective nets have revealed the following drawbacks in practical applications. In terms of maintenance convenience, when cleaning the windshield or repairing the wiper system, tools must be used to remove the fixing bolts and the protective net must be completely removed before operations can be carried out. This process not only consumes a lot of time and manpower, but frequent disassembly can also lead to wear of the bolt holes, affecting the installation accuracy of the protective net and the structural strength of the cab. In terms of visual comfort, in order to avoid the mesh bulging phenomenon caused by vibration during operation, the round steel protective net needs to be designed with a relatively dense spacing, which reduces the light transmittance of the mesh. When the driver observes the working area in front through the protective net, there is a blind spot. The width of the slats of the plate-shaped protective net is usually as high as 30mm. When the driver looks to the sides in a normal sitting posture, the plate-shaped grille is exactly in the line of sight, obstructing the wide-angle vision on the left and right sides and increasing safety hazards. In summary, there is an urgent need for an excavator cab and its tiltable protective net device. Utility Model Content

[0005] To address some or all of the technical problems existing in the prior art, this utility model provides a tiltable safety net device for an excavator cab. The tiltable safety net device is disposed on one side of the cab and includes a first safety net disposed on the upper part of one side of the cab and a second safety net disposed below the first safety net, wherein:

[0006] One end of the first protective net is hinged to the cab via multiple hinge assemblies, and the other end is fixedly connected to the cab via multiple second fixing plates. The hinge assembly includes a first connecting plate and a first fixing plate that are hinged to each other. The first connecting plate is fixed to the first protective net, and the first fixing plate is fixed to the cab. One end of the second fixing plate has a fixing hole, and the other end has a disassembly hole. The first protective net has a connecting hole that matches the disassembly hole. One end of the second fixing plate is fixed to the cab via the fixing hole and the fastener, and the other end is connected to the connecting hole via the fastener passing through the disassembly hole in sequence. The second protective net is fixed to the lower part of one side of the cab. Multiple first grids are evenly and vertically arranged on the first protective net, and multiple second grids are evenly and vertically arranged on the second protective net. The multiple first grids are radially inclined at a preset angle along the center line of the width direction of the first protective net.

[0007] In one specific embodiment, in the above-described tiltable guardrail device for an excavator cab, the first connecting plate is fixed to the first guardrail by fasteners, and the first fixing plate is fixed to the cab by fasteners.

[0008] Furthermore, in the aforementioned tiltable guard net device for excavator cab, the second guard net is connected to a plurality of third fixing plates, one end of which is fixed to the second guard net and the other end is connected to the cab by fasteners.

[0009] In one specific embodiment, in the above-described tiltable guard net device for excavator cab, a retainer is connected between a plurality of the first grilles.

[0010] In one specific embodiment, in the above-mentioned tiltable safety net device for excavator cab, the number of hinge components 4 is 2 to 4.

[0011] In one specific implementation, in the above-mentioned reversible protective net device for excavator cab, the number of the second fixing plates is 2 to 4.

[0012] In one specific implementation, the number of the first grilles in the above-mentioned reversible guard net device for excavator cab is 4 to 8.

[0013] In one specific implementation, the number of the second grilles in the above-mentioned reversible guard net device for excavator cab is 4 to 8.

[0014] On the other hand, the present invention also provides an excavator cab, which includes the aforementioned reversible safety net device.

[0015] The excavator cab and its tiltable safety net device of this utility model have the following advantages and beneficial effects:

[0016] (1) When cleaning the windshield or maintaining the wiper system, this device only needs to remove the fasteners that mate with the connecting holes on the second fixing plate to flip the first guard net around the hinge assembly. There is no need to completely remove the guard net, which greatly saves maintenance time and manpower. At the same time, it avoids the problem of bolt hole wear caused by frequent disassembly, ensuring the installation accuracy of the guard net and the structural strength of the cab. Furthermore, this device can adjust the number and position of the hinge assembly, the second fixing plate, the first grille, and the second grille according to different models and sizes of excavator cabs, which has good adaptability.

[0017] (2) By reasonably setting the number of the first and second grids, this device ensures the stability and reliability of the first and second protective nets, effectively resists the impact of splashes during excavation operations, ensures the integrity of the driving space and the personal safety of the driver, and sets the first grid in a radial inclined manner, which can effectively reduce the obstruction of the driver's line of sight, expand the driver's field of vision, and reduce the blind spot compared with the traditional parallel grid arrangement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for further understanding of the embodiments of this utility model and constitute a part of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0019] Figure 1 This is a structural schematic diagram of the tiltable safety net device for an excavator cab according to the present invention;

[0020] Figure 2 This is a schematic diagram of the flip-up protective net device for excavator cab according to the present invention in its flipped state;

[0021] Figure 3 yes Figure 2 Enlarged view of a section of the central part (I);

[0022] Figure 4 This is a schematic diagram of the structure of the first grille in the tiltable guardrail device for excavator cab of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-First protective net, 11-First grille, 2-Second protective net, 21-Second grille, 22-Third fixing plate, 3-Cab, 4-Hinge assembly, 41-Connecting plate, 42-First fixing plate, 5-Cage, 6-Second fixing plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1 to 4 As shown, this utility model discloses an excavator cab and its tiltable safety net device.

[0027] On one hand, this utility model discloses a tiltable safety net device for an excavator cab. The tiltable safety net device is disposed on one side of the cab 3. The tiltable safety net device for the excavator cab includes a first safety net 1 disposed on the upper part of one side of the cab 3 and a second safety net 2 disposed below the first safety net 1. One end of the first safety net 1 is hinged to the cab 3 by multiple hinge assemblies 4, and the other end is fixedly connected to the cab 3 by multiple second fixing plates 6. The hinge assembly 4 includes a first connecting plate 41 and a first fixing plate 42 that are hinged to each other. The first connecting plate 41 is fixed to the first safety net 1, the first fixing plate 42 is fixed to the cab 3, and the second fixing plate 6... One end has a fixing hole, and the other end has a disassembly hole. The first guard net 1 has a connection hole that matches the disassembly hole. One end of the second fixing plate 6 is fixed to the cab 3 through the fixing hole and the fastener. The other end is connected to the disassembly hole and the connection hole through the fastener. The second guard net 2 is fixed to the lower part of one side of the cab 3. Multiple first grilles 11 are evenly and vertically arranged on the first guard net 1. Multiple second grilles 21 are evenly and vertically arranged on the second guard net 2. The multiple first grilles 11 are radially inclined at a preset angle along the center line of the width direction of the first guard net 1. The preset angle is set in such a way that the angle of the multiple first grilles 11 increases from the center to both sides.

[0028] In one specific embodiment, in the flip-over guard net device for excavator cab of this utility model, the first connecting plate 41 is fixed to the first guard net 1 by fasteners, and the first fixing plate 42 is fixed to the cab 3 by fasteners. Of course, the first connecting plate 41 and the first guard net 1, and the first fixing plate 42 and the cab 3 can also be fixed by welding, as long as the fixing effect is achieved.

[0029] Furthermore, in the tiltable guard net device for excavator cab of this utility model, the second guard net 2 is connected to a plurality of third fixing plates 22, one end of the third fixing plate 22 is fixed to the second guard net 2, and the other end is connected to the cab 3 by fasteners.

[0030] In one specific embodiment, in the tiltable guard net device for excavator cab of this utility model, a retainer 5 is connected between multiple first grilles 11. The position of the retainer 5 is offset from the position parallel to the driver's field of vision. This arrangement improves the overall strength and stability of the first grilles 11. In this embodiment, the number of retainers 5 is one. Of course, the actual number of retainers 5 needs to be set according to the actual working conditions such as the model and size of the first guard net 1 during use.

[0031] In one specific embodiment, in the tiltable guard net device for excavator cab of this utility model, the number of hinge components 4 is 2 to 4, more specifically, the number of hinge components 4 is 2. Of course, the actual number of hinge components 4 needs to be set according to the actual working conditions such as the model and size of the cab 3 during use.

[0032] In one specific embodiment, in the flip-over protective net device for excavator cab of this utility model, the number of second fixing plates 6 is 2 to 4, more specifically, the number of second fixing plates 6 is 2. Of course, the actual number of second fixing plates 6 needs to be set according to the actual working conditions such as the model and size of the cab 3 during use.

[0033] In one specific implementation, in the reversible protective net device for the excavator cab of this utility model, the number of first grids 11 is 4 to 8, more specifically, the number of first grids 11 is 6. Of course, the actual number and arrangement of the first grids 11 need to be set according to the actual working conditions such as the shape and size of the first protective net 1 during use.

[0034] In one specific embodiment, in the reversible protective net device for the excavator cab of this utility model, the number of second grilles 21 is 4 to 8, more specifically, the number of second grilles 21 is 6. Of course, the actual number and arrangement of the second grilles 21 need to be set according to the actual working conditions such as the shape and size of the second protective net 2 during use.

[0035] On the other hand, this utility model also provides an excavator cab, which includes the aforementioned reversible safety net device.

[0036] The working principle of the tiltable safety net device for excavator cabs of this utility model is as follows:

[0037] During use, when maintenance is required on the windshield or wiper system, the fasteners that mate with the connecting holes on the second fixing plate 6 can be removed, and the first guard 1 can be flipped outward around the hinge assembly 4 for easy maintenance. After maintenance, the first guard 1 can be reset and the fasteners can be reinstalled to fix it. The first grille 11 is arranged radially and inclined, which can effectively reduce obstruction of the driver's vision, expand the driver's field of vision, and reduce blind spots compared to the traditional parallel grille arrangement.

[0038] In summary, compared with the prior art, the excavator cab and its tiltable safety net device of this utility model have the following advantages and beneficial effects:

[0039] (1) When cleaning the windshield or maintaining the wiper system, this device only needs to remove the fasteners on the second fixing plate 6 that match the connecting holes to flip the first guard net 1 around the hinge assembly 4 without completely removing the guard net, which greatly saves maintenance time and manpower. At the same time, it avoids the problem of bolt hole wear caused by frequent disassembly, ensuring the installation accuracy of the guard net and the structural strength of the cab 3. Furthermore, this device can adjust the number and position of the hinge assembly 4, the second fixing plate 6, the first grille 11, and the second grille 21 according to different models and sizes of excavator cabs 3, which has good adaptability.

[0040] (2) By reasonably setting the number of the first grid 11 and the second grid 21, this device ensures the stability and reliability of the first protective net 1 and the second protective net 2, effectively resisting the impact of splashes during excavation operations, ensuring the integrity of the driving space and the personal safety of the driver. Furthermore, by setting the first grid 11 in a radially inclined manner, compared with the traditional parallel grid arrangement, it can effectively reduce the obstruction of the driver's vision, expand the driver's field of vision, and reduce the blind spot.

[0041] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable 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; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement state shown in the accompanying drawings.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tiltable safety net device for an excavator cab, wherein the tiltable safety net device is disposed on one side of the cab, characterized in that, The reversible safety net device for the excavator cab includes a first safety net disposed on the upper part of one side of the cab and a second safety net disposed below the first safety net, wherein: One end of the first protective net is hinged to the cab via multiple hinge assemblies, and the other end is fixedly connected to the cab via multiple second fixing plates. The hinge assembly includes a first connecting plate and a first fixing plate that are hinged to each other. The first connecting plate is fixed to the first protective net, and the first fixing plate is fixed to the cab. One end of the second fixing plate has a fixing hole, and the other end has a disassembly hole. The first protective net has a connecting hole that matches the disassembly hole. One end of the second fixing plate is fixed to the cab via the fixing hole and fasteners, and the other end is connected to the connecting hole via fasteners that pass through the disassembly hole in sequence. The second protective net is fixed to the lower part of one side of the cab. Multiple first grids are evenly and vertically arranged on the first protective net, and multiple second grids are evenly and vertically arranged on the second protective net. The multiple first grids are radially inclined at a preset angle along the center line of the width direction of the first protective net.

2. The reversible safety net device for the excavator cab according to claim 1, characterized in that, The first connecting plate is fixed to the first protective net by fasteners, and the first fixing plate is fixed to the cab by fasteners.

3. The reversible safety net device for the excavator cab according to claim 1, characterized in that, The second guardrail is connected to multiple third fixing plates. One end of each third fixing plate is fixed to the second guardrail, and the other end is connected to the cab via fasteners.

4. The reversible safety net device for the excavator cab according to claim 1, characterized in that, A retainer connects the plurality of first grilles.

5. The reversible safety net device for the excavator cab according to claim 1, characterized in that, The number of hinge components is 2 to 4.

6. The reversible safety net device for the excavator cab according to claim 1, characterized in that, The number of the second fixing plates is 2 to 4.

7. The reversible safety net device for the excavator cab according to claim 1, characterized in that, The number of the first grille is 4 to 8.

8. The reversible safety net device for the excavator cab according to claim 1, characterized in that, The number of the second grille is 4 to 8.

9. An excavator cab, characterized in that, The excavator cab includes a reversible safety net device as described in any one of claims 1-8.

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