A top cover structure of a sludge truck capable of preventing a wheel from being locked

Abstract

This utility model discloses a structure for preventing slip wheel jamming on a dump truck roof, including a tarpaulin, a canopy rod assembly for supporting the tarpaulin, a canopy rod drive assembly for driving the canopy rod assembly to move the tarpaulin to open or close the opening on the top of the dump truck body, and two canopy rod guide assemblies respectively disposed on the left and right side panels of the dump truck body for sliding engagement with the canopy rod assembly. Each canopy rod guide assembly includes a hollow guide rail frame fixedly connected to the side panel of the same side, a protective cover disposed on the side of the hollow guide rail frame away from the side panel of the same side, and an I-beam linear slide rail disposed inside the hollow guide rail frame for sliding engagement with the canopy rod assembly. The advantages of this utility model are: it prevents goods from falling into the I-beam linear slide rail, affecting the forward and backward movement of the canopy rod slide seat; it allows the canopy rod slide seat to slide freely on the I-beam linear slide rail, allowing the canopy rod assembly to retract freely.

Description

Technical Field

[0001] This utility model relates to the field of dump truck roof technology, specifically to a dump truck roof structure that prevents slip wheels from getting stuck. Background Technology

[0002] The existing roof covers of construction waste trucks typically have exposed canopy rods and slide rails. This type of roof structure presents the following problems in practical work: When loading construction waste trucks, excavators and grab buckets are usually used to load the cargo into the truck bed through the opening at the top of the truck bed. Cargo may spill onto the canopy rod slide rails, obstructing the movement of the canopy rods. If the cargo on the canopy rod slide rails is not cleared in time before starting the canopy rods, the canopy rods may become stuck, which may not only affect the contraction of the tarpaulin and prevent it from closing and opening properly, but may even damage the canopy rod mechanism. Utility Model Content

[0003] The purpose of this utility model is to provide a structure for a dump truck roof that prevents the slip wheels from jamming, in order to solve the technical problems existing in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A structure for preventing wheel jamming on a dump truck roof includes a tarpaulin, a canopy rod assembly for supporting the tarpaulin, a canopy rod drive assembly for driving the canopy rod assembly to move the tarpaulin to open or close the opening on the top of the dump truck body, and two canopy rod guide assemblies respectively disposed on the left and right side panels of the dump truck body and for sliding cooperation with the canopy rod assembly. Each of the canopy rod guide assemblies includes a hollow guide rail frame fixedly connected to the side panel of the same side, a protective cover disposed on the side of the hollow guide rail frame away from the side panel of the same side, and an I-beam linear slide rail disposed inside the hollow guide rail frame and for sliding cooperation with the canopy rod assembly.

[0006] Furthermore, the hollow guide rail frame includes a first top plate, a first long side plate extending downward from one end of the first top plate, and a first short side plate extending downward from the other end of the first top plate. The I-beam linear slide rail is disposed on the first long side plate, and the protective cover is disposed on the end of the top plate near the short side plate.

[0007] Furthermore, the protective cover includes a second top plate, a second long side plate extending downward from one end of the second top plate, and an inclined plate extending downward from the lower end of the second long side plate. The end of the second top plate away from the second long side plate is connected to the first top plate. The lower end of the second long side plate is lower than the lower end of the first short side plate. The lower end of the inclined plate is inclined towards the first long side plate, and the upper end is inclined away from the first long side plate.

[0008] Furthermore, the canopy rod assembly includes several canopy rod assemblies that are sequentially mounted across the top of the dump truck body from front to back and slidably engaged with two canopy rod guide assemblies located on the left and right side panels of the dump truck body. The last canopy rod assembly is also connected to the canopy rod drive assembly.

[0009] Furthermore, each of the aforementioned awning pole assemblies includes a U-shaped awning pole, and each U-shaped awning pole has an awning pole slide at both its left and right ends. Each awning pole slide is fixedly connected to the awning cloth on one side, and a set of pulleys is provided on the other side. Each awning pole slide is slidably engaged with the I-beam linear slide rail provided on the same side through the corresponding pulley set. In particular, the two awning pole slides corresponding to the last awning pole assembly are also connected to the awning pole drive assembly through the corresponding pulley set.

[0010] Furthermore, except for the last canopy rod assembly, the pulley blocks corresponding to the remaining canopy rod assemblies are arranged in an upright or inverted triangle.

[0011] Furthermore, the canopy rod drive assembly includes a geared motor and a drive shaft. The output end of the geared motor is provided with a first sprocket. The first sprocket is connected to a second sprocket on the drive shaft via a first chain. The drive shaft is also provided with two third sprockets, which are located at the left and right ends of the drive shaft and are respectively connected to a fourth sprocket on the same side via a second chain. The geared motor and the drive shaft are both located on the front side panel of the dump truck body. The two fourth sprockets are located on the upper rear side of the left and right side panels of the dump truck body. The two second chains are each connected to the pulley group corresponding to the two canopy rod slides of the rearmost canopy rod assembly via a connecting plate.

[0012] Furthermore, the canopy rod drive assembly includes a geared motor and a drive shaft. The output end of the geared motor is provided with a first synchronous pulley. The first synchronous pulley is connected to a second synchronous pulley provided on the drive shaft via a first synchronous belt. The drive shaft is also provided with two third synchronous pulleys, which are respectively located at the left and right ends of the drive shaft and are respectively connected to a fourth synchronous pulley provided on the same side via a second synchronous belt. The geared motor and the drive shaft are both located on the front side plate of the dump truck body. The two fourth synchronous pulleys are respectively located on the upper rear side of the left and right side plates of the dump truck body. The two second synchronous belts are respectively connected to the pulley group corresponding to the two canopy rod slides of the rearmost canopy rod assembly via a connecting plate.

[0013] Furthermore, a motor support and a bearing seat are also provided on the front side panel of the dump truck body. The reduction motor is located on the upper part of the motor support, and the transmission shaft is located on the bearing seat. The reduction motor is connected to the front side panel of the dump truck body through the motor support, and the transmission shaft is connected to the front side panel of the dump truck body through the bearing seat.

[0014] Compared with the prior art, the advantages of this utility model are as follows: By adding a protective cover to the top of the hollow guide rail frame (i.e., the canopy rod slide guide rail frame), the I-beam linear slide rail (i.e., the canopy rod slide) can be protected and shielded, which can effectively prevent goods from spilling into the canopy rod slide (i.e., the I-beam linear slide rail) and ensure that the canopy rod slide can run unobstructed on the canopy rod slide (i.e., the I-beam linear slide rail). Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the description of the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of the anti-slip wheel jamming roof structure of the dump truck provided by this utility model;

[0017] Figure 2 This is a side view of the structure of the dump truck roof that prevents the slip wheels from jamming, provided by this utility model;

[0018] Figure 3 This is a schematic diagram of a specific embodiment of the connection between the foremost canopy rod assembly, the canopy rod drive assembly, and the canopy rod guide assembly in the anti-slip wheel jamming roof structure of the muck truck provided by this utility model;

[0019] Figure 4 This is a schematic diagram of a specific embodiment of the connection between the canopy rod assembly, the canopy rod drive assembly, and the canopy rod guide assembly in the anti-slip wheel jamming roof structure of the dump truck provided by this utility model.

[0020] Figure 5 It is a plan view of the pulley system arranged in an upright triangle on the canopy slide block;

[0021] Figure 6 It is a plan view of the pulley system arranged in an inverted triangle on the canopy slide block;

[0022] Figure 7 This is a schematic diagram showing the connection between the canopy rod slide block, which is arranged in an upright triangle, and the I-beam linear guide rail.

[0023] Figure 8This is a schematic diagram showing the connection between the canopy rod slide block, which is arranged in an inverted triangle shape, and the I-beam linear guide rail.

[0024] Figure 9 This is a schematic diagram showing the connection between the canopy rod slide block with the pulley block arranged in an upright triangle and the canopy rod slide block with the pulley block arranged in an inverted triangle and the I-beam linear guide rail.

[0025] Explanation of reference numerals in the attached drawings: 1. Tarpaulin; 2. Tarpaulin pole assembly; 201. Tarpaulin pole assembly; 2011. U-shaped tarpaulin pole; 2012. Tarpaulin pole slide; 2013. Pulley block; 2014. Connecting plate; 3. Tarpaulin pole drive assembly; 301. Gear motor; 302. Drive shaft; 303. First sprocket; 304. First chain; 305. Second sprocket; 306. Third sprocket; 307. Second chain; 308. Fourth sprocket; 309. Motor support; 310. Bearing housing; 4. Canopy rod guide assembly; 401. Hollow guide rail frame; 4011. First top plate; 4012. First long side plate; 4013. First short side plate; 402. Protective cover; 4021. Second top plate; 4022. Second long side plate; 4023. Inclined plate; 403. I-beam linear slide rail; 5. Carriage; 6. Rear door. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, 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, and therefore should not be construed as a limitation on this utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the appearance of the term "horizontal" does not mean that the component is required to be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0029] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 according to the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] See Figures 1 to 4 This illustration shows a specific embodiment of a dump truck roof cover structure for preventing wheel jamming provided by the present invention, including a tarpaulin 1, a canopy rod assembly 2 for supporting the tarpaulin 1, a canopy rod drive assembly 3 for driving the canopy rod assembly 2 to move the tarpaulin 1 to open or close the top opening of the dump truck body 5, and two canopy rod guide assemblies 4 respectively disposed on the left and right side panels of the dump truck body 5 and for sliding cooperation with the canopy rod assembly 2; wherein, each canopy rod guide assembly 4 includes a hollow guide rail frame 401 fixedly connected to the side panel of the same side, a protective cover 402 disposed on the side of the hollow guide rail frame 401 away from the side panel of the same side, and an I-beam linear slide rail 403 disposed inside the hollow guide rail frame 401 and for sliding cooperation with the canopy rod assembly 2.

[0032] Specifically, see Figure 3 and Figure 4In some specific embodiments, the hollow guide rail frame 401 includes a first top plate 4011, a first long side plate 4012 extending downward from one end of the first top plate 4011, and a first short side plate 4013 extending downward from the other end of the first top plate 4011. The I-beam linear slide rail 403 is disposed on the first long side plate 4012, and the protective cover 402 is disposed on the end of the top plate 4011 near the short side plate 4013.

[0033] Specifically, see Figure 3 and Figure 4 In some specific embodiments, the protective cover 402 includes a second top plate 4021, a second long side plate 4022 extending downward from one end of the second top plate 4022, and an inclined plate 4023 extending downward from the lower end of the second long side plate 4022. The end of the second top plate 4021 away from the second long side plate 4022 is connected to the first top plate 4011 by bolts. The lower end of the second long side plate 4022 is lower than the lower end of the first short side plate 4013. The lower end of the inclined plate 4023 is inclined towards the first long side plate 4012, and the upper end is inclined away from the first long side plate 4012.

[0034] Specifically, see Figure 2 The canopy rod assembly 2 includes several canopy rod assemblies 201 that are sequentially mounted across the top of the dump truck body 5 from front to back and slidably engaged with two canopy rod guide assemblies 4 located on the left and right side panels of the dump truck body 5; wherein, the last canopy rod assembly 201 is also connected to the canopy rod drive assembly 3. "From front to back" refers to the distance from the front side to the rear side of the truck body.

[0035] Specifically, see Figure 1 , Figure 3 and Figure 4 In some specific embodiments, each canopy pole assembly 201 includes a U-shaped canopy pole 2011. Each U-shaped canopy pole 2011 has a canopy pole slide seat 2012 at both its left and right ends. One side of each canopy pole slide seat 2012 (i.e., the side away from the dump truck bed 5) is fixedly connected to the tarpaulin 1, and the other side (i.e., the side closer to the dump truck bed 5) is provided with a set of pulleys 2013. The top of each canopy pole slide seat 2012 on the side closer to the dump truck bed 5 is higher than the bottom of the protective cover 402. Each canopy pole slide seat 2012 is slidably engaged with the I-beam linear slide rail 403 on the same side through the corresponding pulleys 2013. The two canopy pole slide seats 2012 corresponding to the last canopy pole assembly 201 are also connected to the canopy pole drive assembly 3 through the corresponding pulleys 2013.

[0036] Specifically, in some embodiments, except for the last canopy rod assembly 201, the pulley blocks 2013 corresponding to the remaining canopy rod assemblies 201 are all arranged in an upright triangle, see reference. Figure 5 and Figure 7 As shown. In some other specific embodiments, except for the last canopy rod assembly 201, the pulley groups 2013 corresponding to the remaining canopy rod assemblies 201 can also be distributed in an inverted triangle shape, see reference. Figure 6 and Figure 8 As shown. Furthermore, in some other specific embodiments, except for the last canopy rod assembly 201, some of the canopy rod assemblies 201 have pulley blocks 2013 arranged in an upright triangle, while others have pulley blocks 2013 arranged in an inverted triangle. See [reference needed]. Figure 9 As shown; where the pulley block 2013 adopts an upright triangular distribution, the portion of the canopy rod assembly 201 corresponding to this distribution can be continuously or discontinuously arranged; similarly, the portion of the canopy rod assembly 201 corresponding to the pulley block 2013 adopts an inverted triangular distribution can be continuously or discontinuously arranged. For example: dividing the multiple canopy rod assemblies 201, except for the last one on the rear side, into front and rear sections, where the pulley blocks 2013 of the multiple canopy rod assemblies 201 in the front section (i.e., near the front of the carriage) adopt an upright triangular distribution, and the pulley blocks 2013 of the multiple canopy rod assemblies 201 in the rear section (i.e., near the rear of the carriage) adopt an inverted triangular distribution; as another example: dividing the multiple canopy rod assemblies 201, except for the last one on the rear side... The pulley block 2013 of the first canopy assembly 201 adopts an upright triangular distribution, the pulley block 2013 of the second canopy assembly 201 adopts an inverted triangular distribution, the pulley block 2013 of the third canopy assembly 201 adopts an upright triangular distribution, the pulley block 2013 of the third canopy assembly 201 adopts an inverted triangular distribution, and so on, the pulley block 2013 of the Nth canopy assembly 201 adopts an upright triangular distribution or an inverted triangular distribution.

[0037] For details, please continue reading Figures 1 to 4In some specific embodiments, the canopy rod drive assembly 3 includes a reduction motor 301 and a drive shaft 302. The output end of the reduction motor 301 is provided with a first sprocket 303. The first sprocket 303 is connected to a second sprocket 305 provided on the drive shaft 302 through a first chain 304. The drive shaft 302 is also provided with two third sprockets 306, which are respectively located at the left and right ends of the drive shaft 302 and are respectively connected to a fourth sprocket 308 provided on the same side through a second chain 307. The reduction motor 301 and the drive shaft 302 are both located on the front side plate of the dump truck body 5. The two fourth sprockets 308 are respectively located on the upper rear side of the left and right side side plates of the dump truck body 5. The two second chains 307 are respectively connected to the pulley group 2013 corresponding to the two canopy rod slides 2012 of the last canopy rod assembly 201 through a connecting plate 2014. More specifically, one end of each connecting plate 2014 is bolted to the corresponding canopy rod slide 2012, and the other end is bolted to the corresponding second chain 307.

[0038] Specifically, in some other embodiments, the canopy rod drive assembly 3 includes a reduction motor 301 and a drive shaft 302. The output end of the reduction motor 301 is provided with a first synchronous pulley. The first synchronous pulley is connected to a second synchronous pulley provided on the drive shaft 302 through a first synchronous belt. The drive shaft 302 is also provided with two third synchronous pulleys, which are respectively located at the left and right ends of the drive shaft 302 and are respectively connected to a fourth synchronous pulley provided on the same side through a second synchronous belt. The reduction motor 301 and the drive shaft 302 are both located on the front side plate of the dump truck body 5. The two fourth synchronous pulleys are respectively located on the upper rear side of the left and right side side plates of the dump truck body 5. The two second synchronous belts are respectively connected to the pulley group 2013 corresponding to the two canopy rod slides 2012 of the last canopy rod assembly 201 through a connecting plate 2014.

[0039] For details, please continue reading Figure 1 and Figure 2In some specific embodiments, a motor support 309 and a bearing seat 310 are also provided on the front side plate of the dump truck body 5. The reduction motor 301 is fixedly installed on the upper part of the motor support 309, and the transmission shaft 302 is rotatably mounted on the bearing seat 310. The reduction motor 301 is connected to the front side plate of the dump truck body 5 through the motor support 309, and the transmission shaft 302 is connected to the front side plate of the dump truck body 5 through the bearing seat 310. When the reduction motor 301 is working, it can drive the transmission shaft 302 to rotate through the first chain 304. When the transmission shaft 302 rotates, it can drive the two third sprockets 306 to rotate. When the two third sprockets 306 rotate, they can drive the last awning assembly 201 to move back and forth on the I-beam linear slide rail 403 through the two second chains 307, thereby driving the tarpaulin 1 to move to open or close the top opening of the dump truck body.

[0040] For details, please refer to [the relevant document / reference]. Figure 3 and Figure 4 The anti-slip wheel jamming structure of the dump truck roof provided by this utility model, by adding a protective cover 402 to the top of the hollow guide rail frame 401 (i.e., the canopy rod slide guide rail frame), can play a protective and shielding role for the I-beam straight slide rail 403 (i.e., the canopy rod slide), effectively preventing the goods from spilling into the I-beam straight slide rail 402 (i.e., the canopy rod slide), ensuring that the canopy rod slide 2012 runs unobstructed on the canopy rod slide (i.e., the I-beam straight slide rail 402), so that the canopy rod assembly 2 can extend and retract freely to drive the tarpaulin 1 to open or close the top opening of the dump truck compartment 5.

[0041] Finally, it should be noted that the above description is only an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A structure for preventing wheel jamming on a dump truck roof, comprising a tarpaulin (1), a canopy rod assembly (2) for supporting the tarpaulin (1), a canopy rod drive assembly (3) for driving the canopy rod assembly (2) to move the tarpaulin (1) to open or close the top opening of the dump truck body (5), and two canopy rod guide assemblies (4) respectively disposed on the left and right side panels of the dump truck body (5) and for slidingly engaging with the canopy rod assembly (2), characterized in that: Each of the canopy rod guide components (4) includes a hollow guide rail frame (401) fixedly connected to the same side of the carriage side panel, a protective cover (402) disposed on the side of the hollow guide rail frame (401) away from the same side of the carriage side panel, and an I-beam linear slide rail (403) disposed inside the hollow guide rail frame (401) and used for sliding cooperation with the canopy rod assembly (2).

2. The sludge vehicle top cover structure preventing wheel lock-up according to claim 1, characterized by: The hollow guide rail frame (401) includes a first top plate (4011), a first long side plate (4012) extending downward from one end of the first top plate (4011), and a first short side plate (4013) extending downward from the other end of the first top plate (4011). The I-beam linear slide rail (403) is disposed on the first long side plate (4012), and the protective cover (402) is disposed on the end of the top plate (4011) near the short side plate (4013).

3. The sludge vehicle top cover structure according to claim 2, wherein: The protective cover (402) includes a second top plate (4021), a second long side plate (4022) extending downward from one end of the second top plate (4021), and an inclined plate (4023) extending downward from the lower end of the second long side plate (4022). The end of the second top plate (4021) away from the second long side plate (4022) is connected to the first top plate (4011). The lower end of the second long side plate (4022) is lower than the lower end of the first short side plate (4013). The lower end of the inclined plate (4023) is inclined towards the first long side plate (4012), and the upper end is inclined away from the first long side plate (4012).

4. The sludge vehicle top cover structure according to claim 1, wherein: The canopy rod assembly (2) includes several canopy rod assemblies (201) that are sequentially mounted across the top of the dump truck body (5) from front to back and are slidably engaged with two canopy rod guide assemblies (4) located on the left and right sides of the dump truck body (5). The canopy rod assembly (201) on the last side is also connected to the canopy rod drive assembly (3).

5. The anti-slip wheel jamming roof structure for dump trucks according to claim 4, characterized in that: Each of the aforementioned awning rod assemblies (201) includes a U-shaped awning rod (2011). Each U-shaped awning rod (2011) has an awning rod slide (2012) at both its left and right ends. Each awning rod slide (2012) is fixedly connected to the tarpaulin (1) on one side and has a set of pulleys (2013) on the other side. Each awning rod slide (2012) is slidably engaged with the I-beam linear slide rail (403) on the same side through the corresponding pulleys (2013). The two awning rod slides (2012) corresponding to the last awning rod assembly (201) are also connected to the awning rod drive assembly (3) through the corresponding pulleys (2013).

6. The sludge vehicle top cover structure according to claim 5, wherein: Except for the last canopy rod assembly (201), the pulley blocks (2013) corresponding to the other canopy rod assemblies (201) are distributed in an upright triangle or an inverted triangle.

7. The sludge vehicle top cover structure according to claim 5, wherein: The canopy rod drive assembly (3) includes a geared motor (301) and a drive shaft (302). The output end of the geared motor (301) is provided with a first sprocket (303). The first sprocket (303) is connected to a second sprocket (305) provided on the drive shaft (302) through a first chain (304). The drive shaft (302) is also provided with two third sprockets (306), which are located at the left and right ends of the drive shaft (302) and are respectively connected to a fourth sprocket (308) provided on the same side through a second chain (307). Among them, the reduction motor (301) and the drive shaft (302) are both installed on the front side plate of the dump truck body (5), and the two fourth sprockets (308) are respectively installed on the upper rear side of the left and right side plates of the dump truck body (5). The two second chains (307) are respectively connected to the pulley group (2013) corresponding to the two canopy slides (2012) of the last canopy assembly (201) through a connecting plate (2014).

8. The sludge vehicle top cover structure according to claim 5, wherein: The canopy rod drive assembly (3) includes a geared motor (301) and a drive shaft (302). The output end of the geared motor (301) is provided with a first synchronous pulley. The first synchronous pulley is connected to a second synchronous pulley provided on the drive shaft (302) through a first synchronous belt. The drive shaft (302) is also provided with two third synchronous pulleys, which are located at the left and right ends of the drive shaft (302) and are respectively connected to a fourth synchronous pulley provided on the same side through a second synchronous belt. Among them, the geared motor (301) and the drive shaft (302) are both installed on the front side plate of the dump truck body (5). The two fourth synchronous pulleys are respectively installed on the upper rear side of the left and right side plates of the dump truck body (5). The two second synchronous belts are respectively connected to the pulley group (2013) corresponding to the two canopy slides (2012) of the last canopy assembly (201) through a connecting plate (2014).

9. The sludge vehicle top cover structure according to claim 7 or 8, wherein: A motor support (309) and a bearing seat (310) are also provided on the front side plate of the dump truck body (5). The geared motor (301) is located on the upper part of the motor support (309), and the transmission shaft (302) is located on the bearing seat (310). The geared motor (301) is connected to the front side plate of the dump truck body (5) through the motor support (309), and the transmission shaft (302) is connected to the front side plate of the dump truck body (5) through the bearing seat (310).

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