A cab roof for an engineering vehicle

Abstract

The utility model discloses a cab roof of engineering vehicle, including upper roof, lower bottom plate and four surrounding side plates, upper roof, lower bottom plate and four surrounding side plates constitute the plastic roof structure of hollow closed, be equipped with the mounting hole of upper roof and lower bottom plate and be penetrated through upper roof and lower bottom plate simultaneously, and through bolt and cab main body detachable connection. Advantageous effects: the utility model discloses novel plastic roof, can realize the production of complex top cover's modelling, can promote the appearance of complete machine, and can reduce the weight of roof under the premise of satisfying the strength performance, and then realize the weight reduction of complete machine, greatly simplify the manufacturing procedure and manufacturing cycle, improve the appearance quality while reducing the cost.

Description

Technical Field

[0001] This utility model relates to a component of an engineering vehicle, and more particularly to a cab roof of an engineering vehicle, belonging to the field of engineering machinery technology. Background Technology

[0002] The cab of construction machinery is the operator's workplace and must simultaneously meet the requirements of safety protection, environmental isolation, and ease of operation. It typically includes the cab body and the cab roof.

[0003] The cab roof is a crucial component of the cab assembly in engineering vehicles. Its core functions are to conceal the internal sheet metal to enhance aesthetics, provide effective heat insulation and sun shading, and offer a mounting base for electrical components such as windshield wipers and overhead lights. Currently, manufacturers in the industry generally employ traditional sheet metal stamping and forming processes, followed by welding multiple sheets together. Subsequent surface treatments include shot blasting for rust removal, electrophoretic corrosion protection, and final topcoat application.

[0004] Traditional metal top covers are mainly made by pressing, bending and welding thin plates, which has several disadvantages: large deformation after welding, requiring repeated correction, poor surface quality, many production processes and long production cycle, and high manufacturing cost. Summary of the Invention

[0005] Purpose of the invention: The purpose of this utility model is to address the problems existing in the prior art by proposing a new type of plastic material cab roof for engineering vehicles, which is manufactured using a rotational molding process. Under the premise of meeting structural and performance requirements, it significantly simplifies the production process, improves production efficiency, makes the overall appearance of the product more aesthetically pleasing, and effectively reduces the overall cost.

[0006] Technical solution: A cab roof for an engineering vehicle includes an upper roof plate, a lower bottom plate, and four side plates. The upper roof plate, lower bottom plate, and four side plates form a hollow and closed plastic roof structure. The upper roof plate and lower bottom plate are provided with mounting holes that pass through both the upper roof plate and the lower bottom plate, and are detachably connected to the cab body by bolts.

[0007] This utility model adopts a novel plastic top cover, which enables the production of top covers with complex shapes, thereby improving the overall aesthetics of the machine. Furthermore, it can reduce the weight of the top cover while meeting strength requirements, thus reducing the overall weight of the machine. It greatly simplifies the manufacturing process and cycle, improving appearance quality while reducing costs.

[0008] Preferably, to guide the flow of rainwater, the upper top plate is provided with symmetrical water-guiding channels. The symmetrical arrangement of these channels allows for rainwater diversion during rainy weather, enhances aesthetics, and also serves as reinforcing ribs to increase the strength of the upper top plate.

[0009] Preferably, to facilitate the installation of the roof, the side panels include flanged side panels extending downwards on both the left and right sides. The flanged side panels can serve a positioning and limiting function during roof installation, and also enhance the aesthetics of the cab.

[0010] Preferably, to reduce the overall height of the machine and improve maneuverability, a communication antenna is installed on the flanged side panel. Installing the communication antenna on the flanged side panel avoids installation on top of the top cover, thus reducing the overall height of the machine; furthermore, the communication antenna can be pre-installed before assembly, reducing assembly difficulty and improving assembly efficiency; and the wiring is concealed inside the top cover for a more aesthetically pleasing appearance.

[0011] Preferably, to facilitate the installation of the warning lights, the upper top plate is provided with a warning light mounting plate and a warning light connector mounting plate, which are located at the bottom of the non-drainage channel. The warning light mounting plate and the warning light connector mounting plate allow for pre-installation of the warning lights and improve installation reliability. Their location at the bottom of the non-drainage channel reduces the impact of rainwater on the warning lights and their connectors.

[0012] Preferably, to facilitate the installation of the work light, the lower base plate is fitted with metal threaded sleeves for mounting the work light at both the front and rear. Since the work light is used frequently and needs to be replaced later, the metal threaded sleeves embedded in the lower base plate enable quick replacement of the work light, improving maintenance convenience.

[0013] In a preferred embodiment, to improve the strength of the lower base plate, the lower base plate is provided with recesses and grooves on one side of the hollow cavity. The recesses are evenly distributed on the lower base plate, and the grooves connect adjacent recesses longitudinally and transversely. Since the lower base plate is made of plastic and the top cover has a large span, the strength of the lower base plate can be effectively improved by setting connected recesses and grooves as reinforcing ribs.

[0014] Preferably, to facilitate the installation of turn signals and improve aesthetics, the side panel includes a turn signal mounting section located at the rear of the roof. This mounting section is a hollow structure extending downwards towards the rear and connected front to back. The turn signals are embedded within the mounting section, allowing for pre-installation and forming an integrated structure with the roof, thus enhancing the cab's aesthetics.

[0015] To improve the stability of the top cover installation, a shock-absorbing pad is provided between the lower base plate and the cab body. By installing a shock-absorbing pad between the lower base plate and the cab body, vibration and noise caused by the installation gap between the top cover and the cab body during operation can be avoided. Furthermore, the shock-absorbing pad is made of elastic material, which can generate a pre-tightening force for the installation of the top cover, thereby improving the stability of the installation.

[0016] Beneficial effects: This utility model adopts a new type of plastic top cover, which can realize the production of top covers with complex shapes and improve the aesthetics of the whole machine; and can reduce the weight of the top cover while meeting the strength performance, thereby achieving the weight reduction of the whole machine; it greatly simplifies the manufacturing process and manufacturing cycle, and improves the appearance quality while reducing costs. Attached Figure Description

[0017] 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 described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model from a top-up perspective; Figure 2 This is a schematic diagram of the structure of this utility model from a bottom-up perspective; Figure 3 This is an exploded view of the assembly of this utility model; Figure 4 This is a partial enlarged perspective view of a corner of this utility model; Figure 5 This is a schematic diagram of the structure of this utility model with the tail facing forward and the bottom facing upward. Figure 6 This is an installation effect diagram of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] like Figure 1-3 As shown in Figure 6, a cab roof for an engineering vehicle includes an upper roof plate 1, a lower bottom plate 2, and four side plates 3. The upper roof plate 1, the lower bottom plate 2, and the four side plates 3 form a hollow and closed plastic roof structure. The upper roof plate 1 and the lower bottom plate 2 are provided with mounting holes 4 that pass through the upper roof plate 1 and the lower bottom plate 2, and are detachably connected to the cab body 5 by bolts.

[0023] This utility model adopts a novel plastic top cover, which enables the production of top covers with complex shapes, thereby improving the overall aesthetics of the machine. Furthermore, it can reduce the weight of the top cover while meeting strength requirements, thus reducing the overall weight of the machine. It greatly simplifies the manufacturing process and cycle, improving appearance quality while reducing costs.

[0024] like Figure 1 As shown, symmetrical water guide channels 11 are provided on the upper top plate 1 to guide the flow of rainwater. The symmetrical arrangement of the water guide channels 11 can divert rainwater on rainy days. The symmetrical arrangement can enhance the aesthetics and also serve as a reinforcing rib to increase the strength of the upper top plate 1.

[0025] To facilitate the installation of the roof, the side panel 3 includes flanged side panels 31 extending downwards on both the left and right sides. The flanged side panels 31 can serve as positioning and limiting elements during the installation of the roof, and also enhance the appearance of the cab.

[0026] like Figure 2 As shown, in order to reduce the overall height of the machine and improve its maneuverability, a communication antenna 6 is installed on the flanged side plate 31. By installing the communication antenna 6 on the flanged side plate 31, it is possible to avoid installing it on top of the top cover, thereby reducing the overall height of the machine; moreover, the communication antenna 6 can be pre-installed before assembly, which can reduce assembly difficulty and improve assembly efficiency; the wiring is concealed inside the top cover, making it more aesthetically pleasing.

[0027] like Figure 1As shown, to facilitate the installation of the warning lights, the upper top plate 1 is equipped with a warning light mounting plate 12 and a warning light connector mounting plate 13, which are located at the bottom of the non-drainage channel 11. The warning light mounting plate 12 and the warning light connector mounting plate 13 allow for pre-installation of the warning lights and improve installation reliability. Their location at the bottom of the non-drainage channel 11 reduces the impact of rainwater on the warning lights and their connectors.

[0028] like Figure 4 and 5 As shown, to facilitate the installation of the work light 7, the lower base plate 2 is fitted with metal threaded sleeves 21 for mounting the work light 7 at both the front and rear. Since the work light 7 is used frequently and needs to be replaced later, the metal threaded sleeves 21 fitted on the lower base plate 2 enable quick replacement of the work light 7, improving maintenance convenience.

[0029] like Figure 2 and 5 As shown, to improve the strength of the lower base plate 2, the lower base plate 2 is provided with recesses 22 and grooves 23 on one side of the hollow cavity. The recesses 22 are evenly distributed on the lower base plate 2, and the grooves 23 connect adjacent recesses 22 longitudinally and transversely. Since the lower base plate 2 is made of plastic and the span of the top cover is relatively large, the strength of the lower base plate 2 can be effectively improved by setting the connected recesses 22 and grooves 23 as reinforcing ribs.

[0030] To facilitate the installation of the turn signal lights 8 and improve aesthetics, the side panel 3 includes a turn signal light mounting portion 32 located at the rear of the roof. The turn signal light mounting portion 32 is a hollow structure extending downwards towards the rear and having a front-to-back through-flow. The turn signal lights 8 are embedded within the turn signal light mounting portion 32, allowing for pre-installation and forming an integrated structure with the roof, thus enhancing the aesthetics of the cab.

[0031] like Figure 2 , 3 As shown in Figure 5, in order to improve the stability of the top cover installation, a shock-absorbing pad 9 is provided between the lower base plate 2 and the cab body 5. By providing a shock-absorbing pad 9 between the lower base plate 2 and the cab body 5, vibration noise caused by the installation gap between the top cover and the cab body 5 during operation can be avoided. Furthermore, the shock-absorbing pad 9 is made of elastic material, which can generate a pre-tightening force for the installation of the top cover, thereby improving the stability of the installation.

[0032] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cab roof for an engineering vehicle, characterized in that: It includes an upper top plate (1), a lower bottom plate (2) and side plates (3) around the perimeter. The upper top plate (1), the lower bottom plate (2) and the side plates (3) around the perimeter constitute a hollow and closed plastic top cover structure. The upper top plate (1) and the lower bottom plate (2) are provided with mounting holes (4) that pass through the upper top plate (1) and the lower bottom plate (2) at the same time, and are detachably connected to the cab body (5) by bolts.

2. The cab roof of the engineering vehicle according to claim 1, characterized in that: The top plate (1) is provided with symmetrical water guide channels (11).

3. The cab roof of the engineering vehicle according to claim 1 or 2, characterized in that: The side panel (3) includes flanged side panels (31) extending downward on both the left and right sides.

4. The cab roof of the engineering vehicle according to claim 3, characterized in that: A communication antenna (6) is installed on the flanged side plate (31).

5. The cab roof of the engineering vehicle according to claim 2, characterized in that: The top plate (1) is provided with a warning light mounting plate (12) and a warning light connector mounting plate (13), which are located at the bottom of the non-water guide channel (11).

6. The cab roof of the engineering vehicle according to claim 1, characterized in that: The bottom plate (2) is fitted with metal threaded sleeves (21) for installing work lights (7) at the front and back respectively.

7. The cab roof of the engineering vehicle according to claim 1, characterized in that: The lower base plate (2) is provided with a recess (22) and a groove (23) on one side of the hollow cavity. The recess (22) is evenly distributed on the lower base plate (2), and the groove (23) connects the adjacent recesses (22) in both directions.

8. The cab roof of the engineering vehicle according to claim 1, characterized in that: The side panel (3) includes a signal light mounting part (32) for the turn signal light (8) located at the rear of the top cover. The signal light mounting part (32) is a hollow structure that extends downward toward the rear and is open to the front and rear.

9. The cab roof of the engineering vehicle according to claim 1, characterized in that: A shock-absorbing pad (9) is provided between the lower base plate (2) and the cab body (5).

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