Anti-roll frame for dump truck

Abstract

The utility model provides a kind of self-unloading truck anti-roll frame, including positioning mounting seat, front pole structure, rear pole structure and roof connecting structure.The positioning mounting seat, front pole structure, rear pole structure and roof connecting structure of the utility model provide self-unloading truck anti-roll frame detachable connection, when installing, each component weight is relatively lighter, without the aid of large professional equipment, single person or minority personnel can easily carry and operate.When installing front pole structure into the positioning slot of positioning mounting seat, since front pole structure component is smaller and lighter, operator can position and install more easily, improve installation efficiency, each component adopts detachable connection mode, if position is found inaccurate during installation process, position adjustment can be conveniently carried out, realize accurate positioning installation, improve the installation precision of anti-roll frame, enhance its adaptability to different vehicle models and installation environment, effectively improve the practicability of anti-roll frame.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle safety protection technology, specifically relating to a roll cage for dump trucks. Background Technology

[0002] Dump trucks are specialized trucks that use hydraulic or mechanical devices to automatically tilt the cargo box for rapid unloading. A roll cage is a structural component used to enhance truck safety. In the event of a rollover or overturning, the roll cage supports the truck body, preventing the cargo box from deforming and crushing the occupants in the cab, thus reducing the risk of injury.

[0003] In existing technologies, truck roll cages are typically welded together as a single unit and installed on the vehicle body through the formed integral structure. However, integral roll cages are heavy, difficult to transport and position, and require specialized equipment or multiple people to complete the installation. This results in high labor and material costs for installation. If high installation accuracy is required, the weight makes position adjustment difficult, making precise positioning challenging, and leading to poor adaptability and practicality. Utility Model Content

[0004] This utility model provides a roll cage for dump trucks, which aims to solve the problems of existing roll cages for trucks being difficult to adjust due to their heavy weight, having low installation accuracy, and poor practicality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a roll cage for dump trucks, comprising: A positioning mounting base is fixed to the front end of the dump truck, and the positioning mounting base is provided with a positioning groove; A front bumper structure is provided in the positioning groove. The front bumper structure has two front connecting parts, which are respectively provided on both sides of the front end of the dump truck. The rear bumper structure is fixed to the rear end of the front of the dump truck. The rear bumper structure has two rear connecting parts, which are respectively arranged on both sides of the rear end of the front of the dump truck. The two rear connecting parts are arranged corresponding to the two front connecting parts. The vehicle has two roof connection structures, which are spaced apart along the width of the dump truck's cab. Each roof connection structure bypasses the top of the dump truck's cab, and both ends of each roof connection structure are detachably connected to the corresponding front connection part and the rear connection part.

[0006] In one possible implementation, the width direction of the dump truck's cab is defined as the first direction, and the direction perpendicular to and horizontal to the first direction is defined as the second direction. The positioning mounting base includes: The profile has a vertical section and a horizontal section. The vertical section of the profile is fixed to the front end of the dump truck cab, and the horizontal section of the profile extends outward from the dump truck cab. The mounting plates are provided in multiples, and the multiple mounting plates are spaced apart along the first direction. One end of each mounting plate is fixed to the horizontal section of the profile. The mounting plates are provided with outwardly extending bent hooks, and the multiple bent hooks together form the positioning groove.

[0007] In one possible implementation, the front bumper structure includes: The main front bumper has a horizontal section and two vertical sections. The horizontal section of the main front bumper is arranged along the first direction and fixed in the positioning groove. The two vertical sections of the main front bumper are fixed at both ends of the horizontal section of the main front bumper along the first direction. The top end of each vertical section of the main front bumper is the front connecting part. A secondary front bumper is provided along the first direction. The horizontal sections of the secondary front bumper and the main front bumper are spaced apart in the vertical direction. The two sections of the secondary front bumper are respectively connected to the vertical sections of the two main front bumpers. There are two front auxiliary bumpers, which are spaced apart along the first direction. Each front auxiliary bumper is inclined, and the top of each front auxiliary bumper is connected to the secondary front bumper. The bottom of each front auxiliary bumper is connected to the horizontal section of the main front bumper.

[0008] In one possible implementation, the distance between the top ends of the two front auxiliary bars is greater than the distance between the bottom ends of the two front auxiliary bars.

[0009] In one possible implementation, a front bumper rib is provided at the connection between the horizontal section of the main front bumper and the vertical sections of the two main front bumpers.

[0010] In one possible implementation, the rear bumper structure includes: The rear bumper positioning seat is fixed to the rear end of the front of the dump truck and is spaced apart from the positioning mounting seat along the second direction. The rear bumper is provided in two parts. The two rear bumper supports are spaced apart on both sides of the rear bumper positioning seat along the first direction. One end of each rear bumper support is fixedly connected to the rear bumper positioning seat, and the other end of each rear bumper support extends outward along the first direction. Two connecting rear bumpers are provided, spaced apart along the first direction. Each connecting rear bumper corresponds to a supporting rear bumper. Each connecting rear bumper has a horizontal section and a vertical section. One end of the horizontal section of each connecting rear bumper is connected to the extended end of the corresponding supporting rear bumper. The other end of the horizontal section of each connecting rear bumper extends outward along the first direction. The bottom end of the vertical section of each connecting rear bumper is connected to the extended end of the horizontal section of the connecting rear bumper. The top end of the vertical section of each connecting rear bumper extends upward along the vertical direction. The top end of the vertical section of the connecting rear bumper is the rear connecting part.

[0011] In one possible implementation, each of the roof connection structures includes: A front connecting longitudinal beam is provided in a vertical direction. The bottom end of the front connecting longitudinal beam is connected to the top end of the corresponding vertical section of the main front bumper, and the top end of the front connecting longitudinal beam extends upward in a vertical direction. A connecting inclined beam is provided, the bottom end of which is connected to the top end of the front connecting longitudinal beam, and the top end of the connecting inclined beam extends obliquely upward toward the rear end of the dump truck's cab. A connecting beam is provided along the first direction, one end of the connecting beam is connected to the extended end of the connecting inclined beam, and the other end of the connecting beam extends outward. A rear connecting longitudinal beam is provided, which is set in a vertical direction. The bottom end of the rear connecting longitudinal beam is connected to the top end of the corresponding vertical section of the connecting rear bar. The top end of the rear connecting longitudinal beam extends upward and is connected to the extended end of the connecting crossbeam.

[0012] In one possible implementation, each of the roof connection structures further includes an auxiliary connecting beam, which is inclined and has its top end connected to the connecting crossbeam and its bottom end connected to the rear connecting longitudinal beam.

[0013] In one possible implementation, the front connecting longitudinal beam, the connecting diagonal beam, the connecting crossbeam, and the rear connecting longitudinal beam are integrally connected.

[0014] In one possible implementation, the roll cage of the dump truck further includes multiple roof reinforcing beams, each of which is spaced apart along the second direction. Each roof reinforcing beam has a horizontal section and two vertical sections. The horizontal section of the roof reinforcing beam is arranged along the first direction, and the vertical sections of the two roof reinforcing beams are spaced apart along the first direction. The top end of the vertical section of each roof reinforcing beam is integrally connected to the horizontal section of the roof reinforcing beam, and the bottom end of the vertical section of each roof reinforcing beam is connected to the corresponding roof connection structure.

[0015] In this implementation, compared to existing technologies, the positioning mounting base, front bumper structure, rear bumper structure, and roof connection structure are detachably connected. During installation, each component is relatively lightweight, eliminating the need for large specialized equipment; it can be easily moved and operated by one person or a small group. When installing the front bumper structure into the positioning slot of the positioning mounting base, the small size and light weight of the front bumper components allow for easy positioning and installation, improving installation efficiency. The detachable connection between components allows for easy adjustment if inaccurate positioning is detected during installation, achieving precise positioning and improving the installation accuracy of the roll cage. This enhances its adaptability to different vehicle models and installation environments, effectively improving the practicality of the roll cage. Attached Figure Description

[0016] Figure 1 Schematic diagram of the structure of the roll cage for dump trucks provided in this embodiment of the utility model Figure 1 ; Figure 2 Schematic diagram of the structure of the roll cage for dump trucks provided in this embodiment of the utility model Figure 2 ; Explanation of reference numerals in the attached figures: 10. Positioning mounting bracket; 11. Profile; 12. Mounting plate; 20. Front bumper structure; 21. Main front bumper; 22. Secondary front bumper; 23. Front auxiliary bumper; 30. Rear bumper structure; 31. Rear bumper positioning bracket; 32. Supporting rear bumper; 33. Connecting rear bumper; 40. Roof connection structure; 41. Front connecting longitudinal beam; 42. Connecting diagonal beam; 43. Connecting crossbeam; 44. Rear connecting longitudinal beam; 45. Auxiliary connecting beam; 50. Roof reinforcement beam. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", and "tail" 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.

[0019] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of a structure. 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, or the internal communication between two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0021] Please refer to the following: Figure 1 and Figure 2 The roll cage for dump trucks provided by this utility model will now be described. The roll cage for dump trucks includes a positioning mounting base 10, a front bumper structure 20, a rear bumper structure 30, and a roof connecting structure 40. The positioning mounting base 10 is fixed to the front end of the dump truck's cab and has a positioning groove. The front bumper structure 20 is disposed within the positioning groove and has two front connecting parts, which are respectively disposed on both sides of the front end of the dump truck's cab. The rear bumper structure 30 is fixed to the rear end of the dump truck's cab and has two rear connecting parts, which are respectively disposed on both sides of the rear end of the dump truck's cab, corresponding to the two front connecting parts. Two roof connecting structures 40 are provided, spaced apart along the width direction of the dump truck's cab. Each roof connecting structure 40 bypasses the top of the dump truck's cab, and both ends of each roof connecting structure 40 are detachably connected to the corresponding front and rear connecting parts.

[0022] Compared with existing technologies, the roll cage for dump trucks provided in this embodiment features a detachable connection between the positioning mounting base 10, the front bumper structure 20, the rear bumper structure 30, and the roof connection structure 40. During installation, each component is relatively lightweight, eliminating the need for large specialized equipment; it can be easily handled and operated by one person or a small group. When installing the front bumper structure 20 into the positioning slot of the positioning mounting base 10, its small size and light weight allow for easy positioning and installation by the operator, improving installation efficiency. The detachable connection between components allows for convenient adjustment if inaccurate positioning is detected during installation, achieving precise installation and improving the roll cage's installation accuracy. This enhances its adaptability to different vehicle models and installation environments, effectively improving the roll cage's practicality.

[0023] In some embodiments, the positioning mounting base 10 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The width direction of the dump truck's cab is defined as the first direction, and the direction perpendicular to and horizontal to the first direction is defined as the second direction.

[0024] The positioning mounting base 10 includes a profile 11 and a mounting plate 12. The profile 11 has a vertical section and a horizontal section. The vertical section of the profile 11 is fixed to the front end of the dump truck cab, and the horizontal section of the profile 11 extends outward from the dump truck cab. Multiple mounting plates 12 are provided, spaced apart along a first direction, with one end of each mounting plate 12 fixed to the horizontal section of the profile 11. The mounting plates 12 have outwardly extending bent hooks, and multiple bent hooks together form a positioning groove.

[0025] The vertical section of profile 11 is firmly fixed to the front end of the vehicle, ensuring the stability of the positioning mounting base 10. The horizontal section extends outward and is equipped with multiple mounting plates 12. The bent hooks on the mounting plates 12 form positioning grooves, providing a precise positioning reference for the installation of the front bumper structure 20. The multiple mounting plates 12 are spaced apart along the first direction, increasing the contact points between the positioning mounting base 10 and the front bumper structure 20, making the front bumper structure 20 more stable after installation, better able to withstand various stresses during vehicle operation, and improving the overall stability and reliability of the roll cage structure.

[0026] The front bumper structure 20 can be fixed to each mounting plate 12 by welding after it is installed on each mounting plate 12 and positioned.

[0027] In some embodiments, the aforementioned front bumper structure 20 may adopt the following... Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2The front bumper structure 20 includes a main front bumper 21, a secondary front bumper 22, and front auxiliary bumpers 23. The main front bumper 21 has a horizontal section and two vertical sections. The horizontal section of the main front bumper 21 is arranged along a first direction and fixed in a positioning groove. The vertical sections of the two main front bumpers 21 are fixed at intervals along the first direction at both ends of the horizontal section of the main front bumper 21. The top end of the vertical section of each main front bumper 21 is a front connecting part. The secondary front bumper 22 is arranged along the first direction, and the horizontal sections of the secondary front bumper 22 and the main front bumper 21 are spaced apart in the vertical direction. The two sections of the secondary front bumper 22 are respectively connected to the vertical sections of the two main front bumpers 21. Two front auxiliary bumpers 23 are provided, spaced apart along the first direction. Each front auxiliary bumper 23 is inclined, and the top end of each front auxiliary bumper 23 is connected to the secondary front bumper 22. The bottom end of each front auxiliary bumper 23 is connected to the horizontal section of the main front bumper 21.

[0028] The main front bumper 21, secondary front bumper 22, and front auxiliary bumper 23 work together to form a stable triangular support structure. The main front bumper 21, as the primary load-bearing component, ensures effective protection for the front of the vehicle through its horizontal and vertical sections. The secondary front bumper 22 is spaced apart from the horizontal sections of the main front bumper 21 and connects to two vertical sections, enhancing the lateral stability of the main front bumper 21. The front auxiliary bumper 23 is angled, connecting to the secondary front bumper 22 at its top and to the horizontal section of the main front bumper 21 at its bottom. This triangular structure effectively disperses and absorbs impact forces from the front. In the event of a collision, the front bumper structure 20 can evenly distribute the impact force across all components, reducing the stress on individual components and thus improving the impact resistance of the front bumper structure 20.

[0029] In some embodiments, the aforementioned front auxiliary bumper 23 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The distance between the top ends of the two front auxiliary bars 23 is greater than the distance between the bottom ends of the two front auxiliary bars 23.

[0030] The distance between the top ends of the two front auxiliary bumpers 23 is greater than the distance between the bottom ends. When the vehicle is subjected to an impact force from the front, this trapezoidal structure can better guide the dispersion direction of the impact force, transmit the impact force to the sides and downwards, and avoid the impact force being concentrated at a certain point, thereby improving the impact resistance of the front bumper structure 20.

[0031] In some embodiments, the aforementioned main front bumper 21 may adopt the following configuration: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 Front bumper ribs are provided at the connection between the horizontal section of the main front bumper 21 and the vertical section of the two main front bumpers 21.

[0032] Front bumper ribs are installed at the connection points of the horizontal section and the two vertical sections of the main front bumper 21, greatly enhancing the structural strength of the main front bumper 21. During vehicle operation, the connection points of the main front bumper 21 are susceptible to various stresses, such as impact forces and vibration stresses. These stresses may cause deformation or cracking at the connection points, thus affecting the overall performance of the front bumper structure 20. The addition of front bumper ribs increases the material thickness and strength at the connection points, effectively resisting these stresses and improving the deformation resistance and durability of the main front bumper 21.

[0033] In some embodiments, the rear bumper structure 30 described above can be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The rear bumper structure 30 includes a rear bumper positioning seat 31, a supporting rear bumper 32, and a connecting rear bumper 33. The rear bumper positioning seat 31 is fixed to the rear end of the front of the dump truck and is spaced apart from the positioning mounting seat 10 along a second direction. There are two supporting rear bumpers 32, which are spaced apart on both sides of the rear bumper positioning seat 31 along a first direction. One end of each supporting rear bumper 32 is fixedly connected to the rear bumper positioning seat 31, and the other end of each supporting rear bumper 32 extends outward along the first direction. Two connecting rear bumpers 33 are provided, and the two connecting rear bumpers 33 are spaced apart along the first direction. Each connecting rear bumper 33 is correspondingly provided with each supporting rear bumper 32. Each connecting rear bumper 33 has a horizontal section and a vertical section. One end of the horizontal section of each connecting rear bumper 33 is connected to the extended end of the corresponding supporting rear bumper 32. The other end of the horizontal section of each connecting rear bumper 33 extends outward along the first direction. The bottom end of the vertical section of each connecting rear bumper 33 is connected to the extended end of the horizontal section of the connecting rear bumper 33. The top end of the vertical section of each connecting rear bumper 33 extends upward along the vertical direction. The top end of the vertical section of the connecting rear bumper 33 is the rear connecting part.

[0034] The design of the rear bumper structure 30 ensures the stability and safety of the rear end of the roll cage. The rear bumper positioning seat 31 and the positioning mounting seat 10 are spaced apart, providing a stable mounting base for the rear bumper structure 30. Two supporting rear bumpers 32 are spaced apart on both sides of the rear bumper positioning seat 31 along a first direction. The connecting rear bumper 33 is correspondingly positioned with the supporting rear bumpers 32, and the structure formed by the horizontal and vertical sections of the connecting rear bumper 33 allows the rear bumper structure 30 to effectively withstand impact forces from the rear and sides of the vehicle. In the event of a vehicle rollover or rear-end collision, the rear bumper structure 30 can support the vehicle body, prevent excessive deformation, and protect the safety of occupants in the driver's cab.

[0035] In some embodiments, the roof connection structure 40 described above can be as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2Each roof connection structure 40 includes a front connecting longitudinal beam 41, a connecting diagonal beam 42, a connecting crossbeam 43, and a rear connecting longitudinal beam 44. The front connecting longitudinal beam 41 is vertically oriented, with its bottom end connected to the top of the vertical section of the corresponding main front bumper 21, and its top end extending upwards vertically. The connecting diagonal beam 42 is connected at its bottom end to the top of the front connecting longitudinal beam 41, and its top end extends obliquely upwards towards the rear end of the dump truck's cab. The connecting crossbeam 43 is oriented in a first direction, with one end connected to the extended end of the connecting diagonal beam 42, and the other end extending outwards. The rear connecting longitudinal beam 44 is vertically oriented, with its bottom end connected to the top of the vertical section of the corresponding rear bumper 33, and its top end extending upwards and connecting to the extended end of the connecting crossbeam 43.

[0036] The roof connection structure 40 effectively connects the front bumper structure 20 and the rear bumper structure 30, enhancing the overall structural strength of the roll cage. The combination of the front connecting longitudinal beam 41, connecting diagonal beam 42, connecting crossbeam 43, and rear connecting longitudinal beam 44 forms a robust frame structure capable of effectively withstanding impact forces from above the roof. In the event of a rollover, the roof connection structure 40 distributes the pressure from the roof onto the front bumper structure 20 and the rear bumper structure 30, preventing the roof from deforming due to excessive pressure and protecting the safety of occupants in the driver's cab.

[0037] In some embodiments, the roof connection structure 40 described above can be as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 Each roof connection structure 40 also includes an auxiliary connection beam 45, which is inclined and has a top end connected to a crossbeam 43 and a bottom end connected to a rear longitudinal beam 44.

[0038] The auxiliary connecting beam 45 further enhances the stability of the roof connection structure 40. The auxiliary connecting beam 45 is angled, connecting to the connecting crossbeam 43 at its top and the rear connecting longitudinal beam 44 at its bottom, forming an additional support structure. During vehicle operation, especially under complex road conditions, the roof connection structure 40 is subjected to forces from various directions. The auxiliary connecting beam 45 effectively disperses these forces, enhancing the roof connection structure 40's resistance to deformation. When the vehicle rolls over or experiences a significant impact, the auxiliary connecting beam 45 assists other components in sharing the pressure, ensuring the integrity of the roof connection structure 40 and improving the safety performance of the roll cage.

[0039] In some embodiments, the aforementioned front connecting longitudinal beam 41 may be as follows: Figure 1 , Figure 2The structure shown. See also Figure 1 , Figure 2 The front connecting longitudinal beam 41, the connecting diagonal beam 42, the connecting cross beam 43, and the rear connecting longitudinal beam 44 are integrally connected.

[0040] The front connecting longitudinal beam 41, connecting diagonal beam 42, connecting crossbeam 43, and rear connecting longitudinal beam 44 are integrally connected, ensuring the integrity and strength of the roof connection structure 40. This integrated connection reduces the number of connection points, lowering the risk of structural failure due to loosening or damage at these points. When subjected to external forces, the entire roof connection structure 40 can bear and deform as a whole, allowing the force to be distributed more evenly across all components, thus improving the structure's load-bearing capacity and impact resistance.

[0041] In some embodiments, the aforementioned roll cage for dump trucks can be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The roll cage for dump trucks also includes roof reinforcing beams 50. Multiple roof reinforcing beams 50 are provided, and each roof reinforcing beam 50 is spaced apart along a second direction. Each roof reinforcing beam 50 has a horizontal section and two vertical sections. The horizontal section of the roof reinforcing beam 50 is arranged along a first direction, and the vertical sections of the two roof reinforcing beams 50 are spaced apart along the first direction. The top of the vertical section of each roof reinforcing beam 50 is integrally connected to the horizontal section of the roof reinforcing beam 50, and the bottom of the vertical section of each roof reinforcing beam 50 is connected to the corresponding roof connection structure 40.

[0042] The addition of roof reinforcement beams effectively enhances the structural strength of the roof. Multiple roof reinforcement beams 50 are spaced apart along the second direction, and their horizontal and vertical sections are connected to the roof connection structure 40, forming a more robust roof protection structure. During vehicle operation, the roof reinforcement beams 50 can withstand pressure and impact forces from above, distributing these forces to the roof connection structure 40 and other parts of the vehicle body, preventing roof deformation due to excessive localized stress. In the event of a rollover or being struck by falling objects, the roof reinforcement beams 50 effectively protect the roof, preventing roof collapse and providing a safe survival space for occupants in the cab, thus improving vehicle safety in extreme situations.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roll cage for dump trucks, characterized in that, include: A positioning mounting base is fixed to the front end of the dump truck, and the positioning mounting base is provided with a positioning groove; A front bumper structure is provided in the positioning groove. The front bumper structure has two front connecting parts, which are respectively provided on both sides of the front end of the dump truck. The rear bumper structure is fixed to the rear end of the front of the dump truck. The rear bumper structure has two rear connecting parts, which are respectively arranged on both sides of the rear end of the front of the dump truck. The two rear connecting parts are arranged corresponding to the two front connecting parts. The vehicle has two roof connection structures, which are spaced apart along the width of the dump truck's cab. Each roof connection structure bypasses the top of the dump truck's cab, and both ends of each roof connection structure are detachably connected to the corresponding front connection part and the rear connection part.

2. The roll cage for dump trucks as described in claim 1, characterized in that, The width direction of the dump truck cab is defined as the first direction, and the direction perpendicular to and horizontal to the first direction is defined as the second direction; The positioning mounting base includes: The profile has a vertical section and a horizontal section. The vertical section of the profile is fixed to the front end of the dump truck cab, and the horizontal section of the profile extends outward from the dump truck cab. The mounting plates are provided in multiples, and the multiple mounting plates are spaced apart along the first direction. One end of each mounting plate is fixed to the horizontal section of the profile. The mounting plates are provided with outwardly extending bent hooks, and the multiple bent hooks together form the positioning groove.

3. The roll cage for dump trucks as described in claim 2, characterized in that, The front bumper structure includes: The main front bumper has a horizontal section and two vertical sections. The horizontal section of the main front bumper is arranged along the first direction and fixed in the positioning groove. The two vertical sections of the main front bumper are fixed at both ends of the horizontal section of the main front bumper along the first direction. The top end of each vertical section of the main front bumper is the front connecting part. A secondary front bumper is provided along the first direction. The horizontal sections of the secondary front bumper and the main front bumper are spaced apart in the vertical direction. The two sections of the secondary front bumper are respectively connected to the vertical sections of the two main front bumpers. There are two front auxiliary bumpers, which are spaced apart along the first direction. Each front auxiliary bumper is inclined, and the top of each front auxiliary bumper is connected to the secondary front bumper. The bottom of each front auxiliary bumper is connected to the horizontal section of the main front bumper.

4. The roll cage for dump trucks as described in claim 3, characterized in that, The distance between the top ends of the two front auxiliary bars is greater than the distance between the bottom ends of the two front auxiliary bars.

5. The roll cage for dump trucks as described in claim 3, characterized in that, A front bumper rib is provided at the connection between the horizontal section of the main front bumper and the vertical section of the two main front bumpers.

6. The roll cage for dump trucks as described in claim 3, characterized in that, The rear bumper structure includes: The rear bumper positioning seat is fixed to the rear end of the front of the dump truck and is spaced apart from the positioning mounting seat along the second direction. The rear bumper is provided in two parts. The two rear bumper supports are spaced apart on both sides of the rear bumper positioning seat along the first direction. One end of each rear bumper support is fixedly connected to the rear bumper positioning seat, and the other end of each rear bumper support extends outward along the first direction. Two connecting rear bumpers are provided, spaced apart along the first direction. Each connecting rear bumper corresponds to a supporting rear bumper. Each connecting rear bumper has a horizontal section and a vertical section. One end of the horizontal section of each connecting rear bumper is connected to the extended end of the corresponding supporting rear bumper. The other end of the horizontal section of each connecting rear bumper extends outward along the first direction. The bottom end of the vertical section of each connecting rear bumper is connected to the extended end of the horizontal section of the connecting rear bumper. The top end of the vertical section of each connecting rear bumper extends upward along the vertical direction. The top end of the vertical section of the connecting rear bumper is the rear connecting part.

7. The roll cage for dump trucks as described in claim 6, characterized in that, Each of the aforementioned roof connection structures includes: A front connecting longitudinal beam is provided in a vertical direction. The bottom end of the front connecting longitudinal beam is connected to the top end of the corresponding vertical section of the main front bumper, and the top end of the front connecting longitudinal beam extends upward in a vertical direction. A connecting inclined beam is provided, the bottom end of which is connected to the top end of the front connecting longitudinal beam, and the top end of the connecting inclined beam extends obliquely upward toward the rear end of the dump truck's cab. A connecting beam is provided along the first direction, one end of the connecting beam is connected to the extended end of the connecting inclined beam, and the other end of the connecting beam extends outward. A rear connecting longitudinal beam is provided, which is set in a vertical direction. The bottom end of the rear connecting longitudinal beam is connected to the top end of the corresponding vertical section of the connecting rear bar. The top end of the rear connecting longitudinal beam extends upward and is connected to the extended end of the connecting crossbeam.

8. The roll cage for dump trucks as described in claim 7, characterized in that, Each of the aforementioned roof connection structures further includes an auxiliary connecting beam, which is inclined and has its top end connected to the connecting crossbeam and its bottom end connected to the rear connecting longitudinal beam.

9. The roll cage for dump trucks as described in claim 7, characterized in that, The front connecting longitudinal beam, the connecting inclined beam, the connecting cross beam, and the rear connecting longitudinal beam are integrally connected.

10. The roll cage for dump trucks as described in claim 2, characterized in that, The roll cage of the dump truck also includes roof reinforcing beams. Multiple roof reinforcing beams are provided, and each roof reinforcing beam is spaced apart along the second direction. Each roof reinforcing beam has a horizontal section and two vertical sections. The horizontal section of the roof reinforcing beam is arranged along the first direction, and the vertical sections of the two roof reinforcing beams are spaced apart along the first direction. The top of the vertical section of each roof reinforcing beam is integrally connected to the horizontal section of the roof reinforcing beam, and the bottom of the vertical section of each roof reinforcing beam is connected to the corresponding roof connection structure.

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