A cleaning vehicle chassis structure

By eliminating the front upright plate of the cleaning vehicle chassis and setting notches and grooves in the side sealing plates, convenient maintenance of the track guide wheels and flexible track extension are achieved, solving the problems of cumbersome track replacement procedures and increased vehicle length, and improving equipment maintenance efficiency and driving stability.

CN224491268UActive Publication Date: 2026-07-14HUNAN TUNAN MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN TUNAN MASCH TECH CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In the existing tracked chassis structure of the cleaning equipment for cleaning the bottom of the boat, the replacement of the track guide wheels is complicated and time-consuming. In addition, when the tracks need to be lengthened, the overall length of the vehicle must be increased, which affects the driving performance.

Method used

The original front upright plate located in front of the track was removed, and a notch was set on the side of the side sealing plate away from the front sealing plate, making the track assembly installation space semi-open. When the track assembly is appropriately lengthened, the overall machine length does not need to be increased. The arc groove design facilitates the maintenance of the guide wheel.

Benefits of technology

It simplifies the maintenance process of the track guide wheels, provides sufficient maintenance space, and does not require increasing the overall vehicle length when extending the tracks, thus maintaining driving performance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224491268U_ABST
    Figure CN224491268U_ABST
Patent Text Reader

Abstract

The utility model discloses a bottom plate structure for cleaning car belongs to the field of cleaning car, including the chassis, crawler assembly and the closing plate subassembly, and the crawler assembly is including two crawlers, and two crawlers are installed respectively on the both sides of chassis width direction, and the closing plate subassembly includes the front closing plate and two side closing plates, and the front closing plate is installed on the front end of chassis, and two side closing plates are connected respectively on the both sides of front closing plate along the width direction of chassis, and two side closing plates are arranged respectively in the front of two corresponding crawlers, and the side closing plate is inclined to set, and one end of side closing plate is connected on the front closing plate, and the other end of side closing plate is away from the front closing plate and is set to extend back, and the lower end of one side of side closing plate away from the front closing plate is provided with the notch groove. In the application embodiment, the notch groove is arranged at the lower end of one side of the side closing plate away from the front closing plate, so that the installation space of the crawler assembly becomes semi-open type, which is convenient for maintenance and replacement, and when the crawler assembly is appropriately lengthened, the length of the whole machine does not need to be lengthened.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning vehicle technology, and in particular to a chassis structure for a cleaning vehicle. Background Technology

[0002] In a type of cleaning equipment for cleaning the bottom of a ship, a tracked walking mechanism is usually installed. In the chassis structure with the tracked walking mechanism, the track assembly is installed between the front and rear uprights, which makes the maintenance space for replacing the track guide wheels insufficient. If the guide wheels need to be replaced, the entire track assembly must be removed first, and then the guide wheels must be removed. The replacement steps are cumbersome and the maintenance time is long. The track installation space is completely limited to the distance between the front and rear uprights. When it is necessary to lengthen the tracks according to the usage requirements, the length of the entire chassis must be increased, which reduces the overall driving performance of the vehicle. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a chassis structure for cleaning vehicles, which eliminates the front upright plate located in front of the tracks in the original structure, and provides a notch groove at the lower end of the side sealing plate on the side away from the front sealing plate, making the installation space of the track assembly semi-open, which facilitates maintenance and replacement. At the same time, when the track assembly is appropriately lengthened, it is not necessary to lengthen the overall machine length.

[0004] A vehicle chassis structure for cleaning according to an embodiment of the present utility model includes:

[0005] Base frame;

[0006] The track assembly includes two tracks, which are respectively mounted on both sides of the underframe along the width direction of the underframe;

[0007] The sealing plate assembly includes a front sealing plate and two side sealing plates. The front sealing plate is installed at the front end of the underframe. The two side sealing plates are respectively connected to the front sealing plate on both sides along the width direction of the underframe. The two side sealing plates are disposed on two corresponding tracks. The side sealing plates are inclined. One end of the side sealing plate is connected to the front sealing plate, and the other end of the side sealing plate is away from the front sealing plate and extends rearward. A notch is provided at the lower end of the side sealing plate away from the front sealing plate.

[0008] A vehicle chassis cleaning structure according to an embodiment of the present utility model has at least the following beneficial effects:

[0009] In this application, the front upright plate located in front of the track in the original structure is eliminated. The side sealing plate is set diagonally backward along the side away from the front sealing plate, and a notch is provided at the lower end of the side sealing plate away from the front sealing plate. The side sealing plate is located in front of the track, making the installation space of the track assembly semi-open. There is enough space in front of the guide wheel in the track assembly for the maintenance and replacement of the guide wheel. At the same time, when the track assembly is appropriately lengthened, the front end of the track can be inserted into the notch, without the need to lengthen the overall machine length.

[0010] According to some embodiments of this utility model, the notch is an arc-shaped groove, and the distance from the inner wall of the notch to the front sealing plate gradually increases in the upward direction. The arc-shaped inner wall of the notch facilitates its processing.

[0011] According to some embodiments of this utility model, two baffles are respectively provided on both sides of the base frame along the width direction of the base frame. The two baffles are respectively located above the two tracks, and the baffles are spaced apart from the tracks. The lowermost end of the inner wall of the notch is located below the baffle, and the uppermost end of the inner wall of the notch is flush with the baffle. The side sealing plate is located in front of the track, the baffle is located above the track, the lower end of the inner wall of the notch is located below the baffle, and the upper end of the inner wall of the notch is flush with the baffle. This makes the installation space of the track assembly semi-open, with sufficient space in front of the guide wheel in the track assembly for maintenance and replacement of the guide wheel. At the same time, when the track assembly is appropriately lengthened, the front end of the track can extend into the notch, without increasing the overall length of the machine.

[0012] According to some embodiments of this utility model, the chassis structure for the cleaning vehicle also includes an engine, which is connected to the track assembly in a transmission manner and is mounted on the underframe. The engine is the power source for the track assembly, driving the tracks through the drive wheel, and the two work together to achieve stable movement of the cleaning vehicle on the ground.

[0013] According to some embodiments of this utility model, the engine has a radiator, and a vent is provided on the front end plate, with the radiator facing the vent. The radiator dissipates the heat generated by the engine into the air, maintaining the engine within a suitable temperature range and ensuring normal engine operation. By eliminating the front upright plate in the original structure and installing the engine radiator directly opposite the front end plate, the installation space for the engine is increased without changing the overall length of the vehicle. When a larger engine needs to be replaced, the original vehicle dimensions can be maintained.

[0014] According to some embodiments of this utility model, a ventilation net is provided at the ventilation opening. As the first line of defense, the ventilation net effectively intercepts large foreign objects such as leaves, branches, insects, and plastic bags, preventing them from directly impacting the radiator core or clogging the gaps between the heat sink fins. The ventilation net also cushions the impact of hard objects such as flying stones and gravel, reducing the probability of the radiator being punctured or deformed.

[0015] According to some embodiments of this utility model, the sealing plate assembly further includes a connecting plate, which is connected above the front sealing plate and the two side sealing plates. The connecting plate has a clearance groove corresponding to the position of the heat sink. The connecting plate connects the front sealing plate and the two side sealing plates, making the sealing plate assembly structure stable. The clearance groove on the connecting plate facilitates heat sink installation.

[0016] According to some embodiments of this utility model, the base frame includes a base plate, two side uprights, and a rear upright. The two side uprights are installed on both sides of the base plate along the width direction of the base frame. The front sealing plate is installed at the front end of the base plate, and the rear upright is installed at the rear end of the base plate. The front sealing plate and the rear upright are respectively connected to the front and rear ends of the base plate, and the two side uprights are connected to the left and right sides of the base plate, making the entire base frame structure stable.

[0017] According to some embodiments of this utility model, the space enclosed by the front sealing plate, the bottom plate, the two side uprights, and the rear upright forms a receiving cavity, and the engine is installed in the receiving cavity. The receiving cavity is provided on the chassis, which can accommodate the engine, resulting in a high space utilization rate and compact structure for the chassis of the cleaning vehicle.

[0018] According to some embodiments of this utility model, the two side uprights are respectively disposed close to the two tracks, and the two side uprights are located between the two tracks. The rear upright is disposed close to the rear end of the track. Two baffles are respectively connected above the two side uprights. The space enclosed by the side uprights, baffles, side sealing plates, rear upright, and the ground forms the installation space of the track assembly. A notch is provided at the lower end of the side sealing plate away from the front sealing plate. The installation space of the track assembly becomes semi-open. There is enough space in front of the guide wheel in the track assembly for the guide wheel to be maintained and replaced. At the same time, when the track assembly is appropriately lengthened, the front end of the track can extend into the notch, without increasing the overall length of the machine.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the chassis structure for cleaning vehicles according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a structural diagram of a chassis structure for a cleaning vehicle using existing technology.

[0024] Icon labels:

[0025] 100. Base frame; 110. Baffle; 120. Base plate; 130. Side uprights; 140. Rear upright; 150. Receiving cavity; 160. Front upright;

[0026] 200. Track assembly; 210. Track;

[0027] 300, sealing plate assembly; 310, front sealing plate; 311, vent; 312, ventilation mesh; 320, side upright plate; 321, notch / groove; 330, connecting plate; 331, clearance groove;

[0028] 400. Engine; 410. Radiator. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Please see Figure 1 and Figure 2 This utility model discloses a chassis structure for a cleaning vehicle, comprising a chassis 100, a track assembly 200, and a sealing plate assembly 300. The track assembly 200 includes two tracks 210, which are respectively mounted on both sides of the chassis 100 along its width. The sealing plate assembly 300 includes a front sealing plate 310 and two side sealing plates. The front sealing plate 310 is mounted at the front end of the chassis 100, and the two side sealing plates are respectively connected to both sides of the front sealing plate 310 along its width. The two side sealing plates are respectively positioned close to the two tracks 210, and are inclined. One end of each side sealing plate is connected to the front sealing plate 310, and the other end of each side sealing plate extends rearward away from the front sealing plate 310. A notch 321 is provided at the lower end of the side sealing plate away from the front sealing plate 310.

[0033] In this application, the front upright plate 160 located in front of the track 210 in the original structure is eliminated. The side sealing plate is set obliquely to the rear along the side away from the front sealing plate 310, and a notch 321 is provided at the lower end of the side sealing plate away from the front sealing plate 310. The side sealing plate is located in front of the track 210, so that the installation space of the track assembly 200 becomes semi-open. There is enough space in front of the guide wheel in the track assembly 200 for the maintenance and replacement of the guide wheel. At the same time, when the track assembly 200 is appropriately lengthened, the front end of the track 210 can be inserted into the notch 321 without lengthening the overall length of the machine.

[0034] In some embodiments, see Figure 1 and Figure 2 The notch 321 is an arc-shaped groove, and the distance from the inner wall of the notch 321 to the front sealing plate 310 gradually increases upwards. The arc-shaped inner wall of the notch 321 facilitates its machining. The side sealing plate is located in front of the track 210, making the installation space of the track assembly 200 semi-open. There is sufficient space in front of the guide wheel in the track assembly 200 for maintenance and replacement of the guide wheel. At the same time, when the track assembly 200 is appropriately lengthened, the front end of the track 210 can extend into the notch 321 without increasing the overall length of the machine.

[0035] In some embodiments, see Figure 1 and Figure 2Two baffles 110 are provided on the base frame 100, with the two baffles 110 positioned on both sides along the width direction of the base frame 100. The two baffles 110 are located above the two tracks 210, with the baffles 110 and tracks 210 spaced apart. The lowermost end of the inner wall of the notch 321 is below the baffle 110, and the uppermost end of the inner wall of the notch 321 is flush with the baffle 110. The side sealing plate is located in front of the track 210, and the baffle 110 is located above the track 210. The lower end of the inner wall of the notch 321 is below the baffle 110, and the upper end of the inner wall of the notch 321 is flush with the baffle 110. This makes the installation space of the track assembly 200 semi-open, providing sufficient space in front of the guide wheel in the track assembly 200 for maintenance and replacement of the guide wheel. At the same time, when the track assembly 200 is appropriately lengthened, the front end of the track 210 can extend into the notch 321 without increasing the overall length of the machine.

[0036] The side sealing plate has a notch 321 at the lower end of the side sealing plate away from the front sealing plate 310, which makes the installation space of the track assembly 200 semi-open. There is enough space in front of the guide wheel in the track assembly 200 for the guide wheel to be maintained and replaced. At the same time, when the track assembly 200 is appropriately lengthened, the front end of the track 210 can be inserted into the notch 321 without lengthening the overall length of the machine.

[0037] In some embodiments, see Figure 1 and Figure 2 The chassis structure of the cleaning vehicle also includes an engine 400, which is connected to the track assembly 200 via a transmission. The engine 400 is mounted on the underframe 100. The engine 400 is the power source for the track assembly 200, driving the track 210 through the drive wheel. The two work together to achieve stable movement of the cleaning vehicle on the ground.

[0038] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The engine 400 has a radiator 410, and a vent 311 is provided on the front end plate 310, with the radiator 410 facing the vent 311. The radiator 410 dissipates the heat generated by the engine 400 into the air, maintaining the engine 400 within a suitable temperature range and ensuring its normal operation. By eliminating the front upright plate 160 in the original structure and installing the radiator 410 of the engine 400 directly opposite the front end plate 310, the installation space for the engine 400 is increased without changing the overall length of the original vehicle. When a larger engine 400 needs to be replaced, the original vehicle dimensions can be maintained.

[0039] In some embodiments, see Figure 1 and Figure 2A ventilation mesh 312 is installed at the ventilation opening 311. As the first line of defense, the ventilation mesh 312 can effectively intercept large foreign objects such as leaves, branches, insects, and plastic bags, preventing them from directly impacting the radiator core 410 or blocking the gaps between the heat sink fins. The ventilation mesh 312 can also buffer the impact of hard objects such as flying stones and gravel, reducing the probability of the radiator 410 being punctured or deformed.

[0040] In some embodiments, see Figure 1 and Figure 2 The sealing plate assembly 300 also includes a connecting plate 330, which is connected above the front sealing plate 310 and the two side sealing plates. The connecting plate 330 has a clearance groove 331 corresponding to the position of the heat sink 410. The connecting plate 330 connects the front sealing plate 310 and the two side sealing plates, ensuring the structural stability of the sealing plate assembly 300. The clearance groove 331 on the connecting plate 330 facilitates the installation of the heat sink 410.

[0041] In some embodiments, see Figure 1 and Figure 2 The base frame 100 includes a base plate 120, two side uprights 320130, and a rear upright 140. The two side uprights 320130 are installed on both sides of the base plate 120 along the width direction of the base frame 100. The front sealing plate 310 is installed at the front end of the base plate 120, and the rear upright 140 is installed at the rear end of the base plate 120. The front sealing plate 310 and the rear upright 140 are respectively connected to the front and rear ends of the base plate 120, and the two side uprights 320130 are connected to the left and right sides of the base plate 120. The entire base frame 100 structure is stable.

[0042] In some embodiments, see Figure 1 and Figure 2 The front end plate 310, the bottom plate 120, the two side upright plates 320 and 130, and the rear upright plate 140 enclose a space forming a receiving cavity 150, in which the engine 400 is installed. The receiving cavity 150 is provided on the chassis 100, which can accommodate the engine 400, resulting in a high space utilization rate and compact structure for the chassis of the cleaning vehicle.

[0043] In some embodiments, see Figure 1 and Figure 2Two side plates 320130 are respectively positioned close to the two tracks 210, with the two side plates 320130 located between the two tracks 210. The rear plate 140 is positioned close to the rear end of the track 210. Two baffles 110 are respectively connected above the two side plates 320130. The space enclosed by the side plates 320130, baffles 110, side sealing plates, rear plate 140, and the ground forms the installation space for the track assembly 200. A notch 321 is provided at the lower end of the side sealing plate away from the front sealing plate 310, making the installation space of the track assembly 200 semi-open. There is sufficient space in front of the guide wheel in the track assembly 200 for maintenance and replacement of the guide wheel. At the same time, when the track assembly 200 is appropriately lengthened, the front end of the track 210 can extend into the notch 321 without increasing the overall length of the machine.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A chassis structure for cleaning vehicles, characterized in that, include: Base frame; The track assembly includes two tracks, which are respectively mounted on both sides of the underframe along the width direction of the underframe; The sealing plate assembly includes a front sealing plate and two side sealing plates. The front sealing plate is installed at the front end of the underframe. The two side sealing plates are respectively connected to the front sealing plate on both sides along the width direction of the underframe. The two side sealing plates are respectively located in front of two corresponding tracks. The side sealing plates are inclined. One end of the side sealing plate is connected to the front sealing plate, and the other end of the side sealing plate is away from the front sealing plate and extends rearward. A notch is provided at the lower end of the side sealing plate away from the front sealing plate.

2. The chassis structure for cleaning vehicles according to claim 1, characterized in that, The notch is an arc-shaped groove, and the distance from the inner wall of the notch to the front sealing plate gradually increases in the upward direction.

3. The chassis structure for cleaning vehicles according to claim 2, characterized in that, Two baffles are respectively provided on both sides of the base frame along the width direction of the base frame. The two baffles are respectively located above the two tracks. The baffles are spaced apart from the tracks. The lowermost end of the inner wall of the notch is located below the baffle, and the uppermost end of the inner wall of the notch is flush with the baffle.

4. The chassis structure for cleaning vehicles according to claim 1, characterized in that, It also includes an engine, which is connected to the track assembly in a drivetrain and is mounted on the underframe.

5. A chassis structure for cleaning vehicles according to claim 4, characterized in that, The engine has a radiator, and the front cover plate is provided with a vent, with the radiator facing the vent.

6. A chassis structure for cleaning vehicles according to claim 5, characterized in that, A ventilation net is installed at the ventilation opening.

7. A chassis structure for cleaning vehicles according to claim 5, characterized in that, The sealing plate assembly also includes a connecting plate, which is connected above the front sealing plate and the two side sealing plates, and the connecting plate is provided with a clearance groove corresponding to the position of the heat sink.

8. A chassis structure for cleaning vehicles according to claim 4, characterized in that, The base frame includes a base plate, two side uprights and a rear upright. The two side uprights are installed on both sides of the base plate along the width direction of the base frame. The front sealing plate is installed at the front end of the base plate and the rear upright is installed at the rear end of the base plate.

9. A chassis structure for cleaning vehicles according to claim 8, characterized in that, The space enclosed by the front sealing plate, the bottom plate, the two side upright plates and the rear upright plate forms a receiving cavity, and the engine is installed in the receiving cavity.

10. A chassis structure for cleaning vehicles according to claim 8, characterized in that, The two side uprights are respectively disposed close to the two tracks, and the two side uprights are located between the two tracks. The rear upright is disposed close to the rear end of the track.